From 9469aa92f30fb36c571edfc60a37c55ecafd24c3 Mon Sep 17 00:00:00 2001 From: David Schleef Date: Wed, 13 Oct 2010 15:39:55 -0700 Subject: [PATCH] baseparse: Create baseparse library --- gst/audioparsers/Makefile.am | 10 +- gst/audioparsers/gstaacparse.h | 2 +- gst/audioparsers/gstac3parse.h | 2 +- gst/audioparsers/gstamrparse.h | 2 +- gst/audioparsers/gstbaseparse.c | 3716 ---------------------------------- gst/audioparsers/gstbaseparse.h | 358 ---- gst/audioparsers/gstdcaparse.h | 2 +- gst/audioparsers/gstflacparse.h | 2 +- gst/audioparsers/gstmpegaudioparse.h | 2 +- 9 files changed, 12 insertions(+), 4084 deletions(-) delete mode 100644 gst/audioparsers/gstbaseparse.c delete mode 100644 gst/audioparsers/gstbaseparse.h diff --git a/gst/audioparsers/Makefile.am b/gst/audioparsers/Makefile.am index 8aca6d9..77039c7 100644 --- a/gst/audioparsers/Makefile.am +++ b/gst/audioparsers/Makefile.am @@ -3,10 +3,13 @@ plugin_LTLIBRARIES = libgstaudioparsersbad.la libgstaudioparsersbad_la_SOURCES = \ gstaacparse.c gstamrparse.c gstac3parse.c \ gstdcaparse.c gstflacparse.c gstmpegaudioparse.c \ - gstbaseparse.c plugin.c + plugin.c -libgstaudioparsersbad_la_CFLAGS = $(GST_PLUGINS_BASE_CFLAGS) $(GST_BASE_CFLAGS) $(GST_CFLAGS) +libgstaudioparsersbad_la_CFLAGS = \ + -I$(top_srcdir)/gst-libs \ + $(GST_PLUGINS_BASE_CFLAGS) $(GST_BASE_CFLAGS) $(GST_CFLAGS) libgstaudioparsersbad_la_LIBADD = \ + $(top_builddir)/gst-libs/gst/baseparse/libgstbaseparse-$(GST_MAJORMINOR).la \ $(GST_PLUGINS_BASE_LIBS) -lgsttag-$(GST_MAJORMINOR) \ -lgstaudio-$(GST_MAJORMINOR) \ $(GST_BASE_LIBS) $(GST_LIBS) @@ -14,5 +17,4 @@ libgstaudioparsersbad_la_LDFLAGS = $(PACKAGE_LIBS) $(GST_PLUGIN_LDFLAGS) libgstaudioparsersbad_la_LIBTOOLFLAGS = --tag=disable-static noinst_HEADERS = gstaacparse.h gstamrparse.h gstac3parse.h \ - gstdcaparse.h gstflacparse.h gstmpegaudioparse.h \ - gstbaseparse.h + gstdcaparse.h gstflacparse.h gstmpegaudioparse.h diff --git a/gst/audioparsers/gstaacparse.h b/gst/audioparsers/gstaacparse.h index 7d71ef0..e62bf65 100644 --- a/gst/audioparsers/gstaacparse.h +++ b/gst/audioparsers/gstaacparse.h @@ -23,7 +23,7 @@ #define __GST_AACPARSE_H__ #include -#include "gstbaseparse.h" +#include G_BEGIN_DECLS diff --git a/gst/audioparsers/gstac3parse.h b/gst/audioparsers/gstac3parse.h index 724b56f..781554b 100644 --- a/gst/audioparsers/gstac3parse.h +++ b/gst/audioparsers/gstac3parse.h @@ -24,7 +24,7 @@ #define __GST_AC3_PARSE_H__ #include -#include "gstbaseparse.h" +#include G_BEGIN_DECLS diff --git a/gst/audioparsers/gstamrparse.h b/gst/audioparsers/gstamrparse.h index e3fc191..04cd6e7 100644 --- a/gst/audioparsers/gstamrparse.h +++ b/gst/audioparsers/gstamrparse.h @@ -24,7 +24,7 @@ #define __GST_AMRPARSE_H__ #include -#include "gstbaseparse.h" +#include G_BEGIN_DECLS diff --git a/gst/audioparsers/gstbaseparse.c b/gst/audioparsers/gstbaseparse.c deleted file mode 100644 index 16a6a08..0000000 --- a/gst/audioparsers/gstbaseparse.c +++ /dev/null @@ -1,3716 +0,0 @@ -/* GStreamer - * Copyright (C) 2008 Nokia Corporation. All rights reserved. - * Contact: Stefan Kost - * Copyright (C) 2008 Sebastian Dröge . - * - * This library is free software; you can redistribute it and/or - * modify it under the terms of the GNU Library General Public - * License as published by the Free Software Foundation; either - * version 2 of the License, or (at your option) any later version. - * - * This library is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * Library General Public License for more details. - * - * You should have received a copy of the GNU Library General Public - * License along with this library; if not, write to the - * Free Software Foundation, Inc., 59 Temple Place - Suite 330, - * Boston, MA 02111-1307, USA. - */ - -/** - * SECTION:gstbaseparse - * @short_description: Base class for stream parsers - * @see_also: #GstBaseTransform - * - * This base class is for parser elements that process data and splits it - * into separate audio/video/whatever frames. - * - * It provides for: - * - * One sinkpad and one srcpad - * Handles state changes - * Does flushing - * Push mode - * Pull mode - * Handles events (NEWSEGMENT/EOS/FLUSH) - * Handles seeking in both modes - * - * Handles POSITION/DURATION/SEEKING/FORMAT/CONVERT queries - * - * - * - * The purpose of this base class is to provide a basic functionality of - * a parser and share a lot of rather complex code. - * - * Description of the parsing mechanism: - * - * - * Set-up phase - * - * GstBaseParse class calls @set_sink_caps to inform the subclass about - * incoming sinkpad caps. Subclass should set the srcpad caps accordingly. - * - * - * GstBaseParse calls @start to inform subclass that data processing is - * about to start now. - * - * - * At least in this point subclass needs to tell the GstBaseParse class - * how big data chunks it wants to receive (min_frame_size). It can do - * this with @gst_base_parse_set_min_frame_size. - * - * - * GstBaseParse class sets up appropriate data passing mode (pull/push) - * and starts to process the data. - * - * - * - * - * - * Parsing phase - * - * GstBaseParse gathers at least min_frame_size bytes of data either - * by pulling it from upstream or collecting buffers into internal - * #GstAdapter. - * - * - * A buffer of (at least) min_frame_size bytes is passed to subclass with - * @check_valid_frame. Subclass checks the contents and returns TRUE - * if the buffer contains a valid frame. It also needs to set the - * @framesize according to the detected frame size. If buffer didn't - * contain a valid frame, this call must return FALSE and optionally - * set the @skipsize value to inform base class that how many bytes - * it needs to skip in order to find a valid frame. @framesize can always - * indicate a new minimum for current frame parsing. The passed buffer - * is read-only. Note that @check_valid_frame might receive any small - * amount of input data when leftover data is being drained (e.g. at EOS). - * - * - * After valid frame is found, it will be passed again to subclass with - * @parse_frame call. Now subclass is responsible for parsing the - * frame contents and setting the caps, and buffer metadata (e.g. - * buffer timestamp and duration, or keyframe if applicable). - * (although the latter can also be done by GstBaseParse if it is - * appropriately configured, see below). Frame is provided with - * timestamp derived from upstream (as much as generally possible), - * duration obtained form configuration (see below), and offset - * if meaningful (in pull mode). - * - * - * Finally the buffer can be pushed downstream and parsing loop starts - * over again. Just prior to actually pushing the buffer in question, - * it is passed to @pre_push_buffer which gives subclass yet one - * last chance to examine buffer metadata, or to send some custom (tag) - * events, or to perform custom (segment) filtering. - * - * - * During the parsing process GstBaseParseClass will handle both srcpad and - * sinkpad events. They will be passed to subclass if @event or - * @src_event callbacks have been provided. - * - * - * - * - * Shutdown phase - * - * GstBaseParse class calls @stop to inform the subclass that data - * parsing will be stopped. - * - * - * - * - * - * Subclass is responsible for providing pad template caps for - * source and sink pads. The pads need to be named "sink" and "src". It also - * needs to set the fixed caps on srcpad, when the format is ensured (e.g. - * when base class calls subclass' @set_sink_caps function). - * - * This base class uses GST_FORMAT_DEFAULT as a meaning of frames. So, - * subclass conversion routine needs to know that conversion from - * GST_FORMAT_TIME to GST_FORMAT_DEFAULT must return the - * frame number that can be found from the given byte position. - * - * GstBaseParse uses subclasses conversion methods also for seeking (or otherwise - * uses its own default one, see also below). - * - * Subclass @start and @stop functions will be called to inform the beginning - * and end of data processing. - * - * Things that subclass need to take care of: - * - * Provide pad templates - * - * Fixate the source pad caps when appropriate - * - * - * Inform base class how big data chunks should be retrieved. This is - * done with @gst_base_parse_set_min_frame_size function. - * - * - * Examine data chunks passed to subclass with @check_valid_frame - * and tell if they contain a valid frame - * - * - * Set the caps and timestamp to frame that is passed to subclass with - * @parse_frame function. - * - * Provide conversion functions - * - * Update the duration information with @gst_base_parse_set_duration - * - * - * Optionally passthrough using @gst_base_parse_set_format - * - * - * Configure various baseparse parameters using @gst_base_parse_set_seek and - * @gst_base_parse_set_frame_props. - * - * - * In particular, if subclass is unable to determine a duration, but - * parsing (or specs) yields a frames per seconds rate, then this can be - * provided to GstBaseParse to enable it to cater for - * buffer time metadata (which will be taken from upstream as much as possible). - * Internally keeping track of frame durations and respective - * sizes that have been pushed provides GstBaseParse with an estimated bitrate. - * A default @convert (used if not overriden) will then use these - * rates to perform obvious conversions. These rates are also used to update - * (estimated) duration at regular frame intervals. - * - * - * - */ - -/* TODO: - * - In push mode provide a queue of adapter-"queued" buffers for upstream - * buffer metadata - * - Queue buffers/events until caps are set - */ - -#ifdef HAVE_CONFIG_H -# include "config.h" -#endif - -#include -#include - -#include "gstbaseparse.h" - -#define MIN_FRAMES_TO_POST_BITRATE 10 -#define TARGET_DIFFERENCE (20 * GST_SECOND) - -GST_DEBUG_CATEGORY_STATIC (gst_base_parse_debug); -#define GST_CAT_DEFAULT gst_base_parse_debug - -/* Supported formats */ -static GstFormat fmtlist[] = { - GST_FORMAT_DEFAULT, - GST_FORMAT_BYTES, - GST_FORMAT_TIME, - 0 -}; - -#define GST_BASE_PARSE_GET_PRIVATE(obj) \ - (G_TYPE_INSTANCE_GET_PRIVATE ((obj), GST_TYPE_BASE_PARSE, GstBaseParsePrivate)) - -struct _GstBaseParsePrivate -{ - GstActivateMode pad_mode; - - gint64 duration; - GstFormat duration_fmt; - gint64 estimated_duration; - - guint min_frame_size; - guint format; - guint fps_num, fps_den; - gint update_interval; - guint bitrate; - guint lead_in, lead_out; - GstClockTime lead_in_ts, lead_out_ts; - GstBaseParseSeekable seekable; - - gboolean discont; - gboolean flushing; - gboolean drain; - - gint64 offset; - gint64 sync_offset; - GstClockTime next_ts; - GstClockTime prev_ts; - GstClockTime frame_duration; - gboolean seen_keyframe; - gboolean is_video; - - guint64 framecount; - guint64 bytecount; - guint64 data_bytecount; - guint64 acc_duration; - GstClockTime first_frame_ts; - gint64 first_frame_offset; - - gboolean post_min_bitrate; - gboolean post_avg_bitrate; - gboolean post_max_bitrate; - guint min_bitrate; - guint avg_bitrate; - guint max_bitrate; - guint posted_avg_bitrate; - - GList *pending_events; - - GstBuffer *cache; - - /* index entry storage, either ours or provided */ - GstIndex *index; - gint index_id; - gboolean own_index; - /* seek table entries only maintained if upstream is BYTE seekable */ - gboolean upstream_seekable; - gboolean upstream_has_duration; - gint64 upstream_size; - /* minimum distance between two index entries */ - GstClockTimeDiff idx_interval; - /* ts and offset of last entry added */ - GstClockTime index_last_ts; - gint64 index_last_offset; - gboolean index_last_valid; - - /* timestamps currently produced are accurate, e.g. started from 0 onwards */ - gboolean exact_position; - /* seek events are temporarily kept to match them with newsegments */ - GSList *pending_seeks; - - /* reverse playback */ - GSList *buffers_pending; - GSList *buffers_queued; - GSList *buffers_send; - GstClockTime last_ts; - gint64 last_offset; -}; - -typedef struct _GstBaseParseSeek -{ - GstSegment segment; - gboolean accurate; - gint64 offset; - GstClockTime start_ts; -} GstBaseParseSeek; - -#define GST_BASE_PARSE_PASSTHROUGH(parse) \ - (parse->priv->format & GST_BASE_PARSE_FORMAT_PASSTHROUGH) -#define GST_BASE_PARSE_HAS_TIME(parse) \ - (parse->priv->format & GST_BASE_PARSE_FORMAT_HAS_TIME) - - -static GstElementClass *parent_class = NULL; - -static void gst_base_parse_class_init (GstBaseParseClass * klass); -static void gst_base_parse_init (GstBaseParse * parse, - GstBaseParseClass * klass); - -GType -gst_base_parse_get_type (void) -{ - static GType base_parse_type = 0; - - if (!base_parse_type) { - static const GTypeInfo base_parse_info = { - sizeof (GstBaseParseClass), - (GBaseInitFunc) NULL, - (GBaseFinalizeFunc) NULL, - (GClassInitFunc) gst_base_parse_class_init, - NULL, - NULL, - sizeof (GstBaseParse), - 0, - (GInstanceInitFunc) gst_base_parse_init, - }; - - base_parse_type = g_type_register_static (GST_TYPE_ELEMENT, - "GstAudioBaseParseBad", &base_parse_info, G_TYPE_FLAG_ABSTRACT); - } - return base_parse_type; -} - -static void gst_base_parse_finalize (GObject * object); - -static GstStateChangeReturn gst_base_parse_change_state (GstElement * element, - GstStateChange transition); -static void gst_base_parse_reset (GstBaseParse * parse); - -static void gst_base_parse_set_index (GstElement * element, GstIndex * index); -static GstIndex *gst_base_parse_get_index (GstElement * element); - -static gboolean gst_base_parse_sink_activate (GstPad * sinkpad); -static gboolean gst_base_parse_sink_activate_push (GstPad * pad, - gboolean active); -static gboolean gst_base_parse_sink_activate_pull (GstPad * pad, - gboolean active); -static gboolean gst_base_parse_handle_seek (GstBaseParse * parse, - GstEvent * event); -static void gst_base_parse_handle_tag (GstBaseParse * parse, GstEvent * event); - -static gboolean gst_base_parse_src_event (GstPad * pad, GstEvent * event); -static gboolean gst_base_parse_sink_event (GstPad * pad, GstEvent * event); -static gboolean gst_base_parse_query (GstPad * pad, GstQuery * query); -static gboolean gst_base_parse_sink_setcaps (GstPad * pad, GstCaps * caps); -static const GstQueryType *gst_base_parse_get_querytypes (GstPad * pad); - -static GstFlowReturn gst_base_parse_chain (GstPad * pad, GstBuffer * buffer); -static void gst_base_parse_loop (GstPad * pad); - -static gboolean gst_base_parse_check_frame (GstBaseParse * parse, - GstBaseParseFrame * frame, guint * framesize, gint * skipsize); -static GstFlowReturn gst_base_parse_parse_frame (GstBaseParse * parse, - GstBaseParseFrame * frame); - -static gboolean gst_base_parse_sink_eventfunc (GstBaseParse * parse, - GstEvent * event); - -static gboolean gst_base_parse_src_eventfunc (GstBaseParse * parse, - GstEvent * event); - -static void gst_base_parse_drain (GstBaseParse * parse); - -static void gst_base_parse_post_bitrates (GstBaseParse * parse, - gboolean post_min, gboolean post_avg, gboolean post_max); - -static gint64 gst_base_parse_find_offset (GstBaseParse * parse, - GstClockTime time, gboolean before, GstClockTime * _ts); -static GstFlowReturn gst_base_parse_locate_time (GstBaseParse * parse, - GstClockTime * _time, gint64 * _offset); - -static GstFlowReturn gst_base_parse_process_fragment (GstBaseParse * parse, - gboolean push_only); - -static void -gst_base_parse_clear_queues (GstBaseParse * parse) -{ - g_slist_foreach (parse->priv->buffers_queued, (GFunc) gst_buffer_unref, NULL); - g_slist_free (parse->priv->buffers_queued); - parse->priv->buffers_queued = NULL; - g_slist_foreach (parse->priv->buffers_pending, (GFunc) gst_buffer_unref, - NULL); - g_slist_free (parse->priv->buffers_pending); - parse->priv->buffers_pending = NULL; - g_slist_foreach (parse->priv->buffers_send, (GFunc) gst_buffer_unref, NULL); - g_slist_free (parse->priv->buffers_send); - parse->priv->buffers_send = NULL; -} - -static void -gst_base_parse_finalize (GObject * object) -{ - GstBaseParse *parse = GST_BASE_PARSE (object); - GstEvent **p_ev; - - g_object_unref (parse->adapter); - - if (parse->pending_segment) { - p_ev = &parse->pending_segment; - gst_event_replace (p_ev, NULL); - } - if (parse->close_segment) { - p_ev = &parse->close_segment; - gst_event_replace (p_ev, NULL); - } - - if (parse->priv->cache) { - gst_buffer_unref (parse->priv->cache); - parse->priv->cache = NULL; - } - - g_list_foreach (parse->priv->pending_events, (GFunc) gst_mini_object_unref, - NULL); - g_list_free (parse->priv->pending_events); - parse->priv->pending_events = NULL; - - if (parse->priv->index) { - gst_object_unref (parse->priv->index); - parse->priv->index = NULL; - } - - gst_base_parse_clear_queues (parse); - - G_OBJECT_CLASS (parent_class)->finalize (object); -} - -static void -gst_base_parse_class_init (GstBaseParseClass * klass) -{ - GObjectClass *gobject_class; - GstElementClass *gstelement_class; - - gobject_class = G_OBJECT_CLASS (klass); - g_type_class_add_private (klass, sizeof (GstBaseParsePrivate)); - parent_class = g_type_class_peek_parent (klass); - gobject_class->finalize = GST_DEBUG_FUNCPTR (gst_base_parse_finalize); - - gstelement_class = (GstElementClass *) klass; - gstelement_class->change_state = - GST_DEBUG_FUNCPTR (gst_base_parse_change_state); - gstelement_class->set_index = GST_DEBUG_FUNCPTR (gst_base_parse_set_index); - gstelement_class->get_index = GST_DEBUG_FUNCPTR (gst_base_parse_get_index); - - /* Default handlers */ - klass->check_valid_frame = gst_base_parse_check_frame; - klass->parse_frame = gst_base_parse_parse_frame; - klass->src_event = gst_base_parse_src_eventfunc; - klass->convert = gst_base_parse_convert_default; - - GST_DEBUG_CATEGORY_INIT (gst_base_parse_debug, "baseparse", 0, - "baseparse element"); -} - -static void -gst_base_parse_init (GstBaseParse * parse, GstBaseParseClass * bclass) -{ - GstPadTemplate *pad_template; - - GST_DEBUG_OBJECT (parse, "gst_base_parse_init"); - - parse->priv = GST_BASE_PARSE_GET_PRIVATE (parse); - - pad_template = - gst_element_class_get_pad_template (GST_ELEMENT_CLASS (bclass), "sink"); - g_return_if_fail (pad_template != NULL); - parse->sinkpad = gst_pad_new_from_template (pad_template, "sink"); - gst_pad_set_event_function (parse->sinkpad, - GST_DEBUG_FUNCPTR (gst_base_parse_sink_event)); - gst_pad_set_setcaps_function (parse->sinkpad, - GST_DEBUG_FUNCPTR (gst_base_parse_sink_setcaps)); - gst_pad_set_chain_function (parse->sinkpad, - GST_DEBUG_FUNCPTR (gst_base_parse_chain)); - gst_pad_set_activate_function (parse->sinkpad, - GST_DEBUG_FUNCPTR (gst_base_parse_sink_activate)); - gst_pad_set_activatepush_function (parse->sinkpad, - GST_DEBUG_FUNCPTR (gst_base_parse_sink_activate_push)); - gst_pad_set_activatepull_function (parse->sinkpad, - GST_DEBUG_FUNCPTR (gst_base_parse_sink_activate_pull)); - gst_element_add_pad (GST_ELEMENT (parse), parse->sinkpad); - - GST_DEBUG_OBJECT (parse, "sinkpad created"); - - pad_template = - gst_element_class_get_pad_template (GST_ELEMENT_CLASS (bclass), "src"); - g_return_if_fail (pad_template != NULL); - parse->srcpad = gst_pad_new_from_template (pad_template, "src"); - gst_pad_set_event_function (parse->srcpad, - GST_DEBUG_FUNCPTR (gst_base_parse_src_event)); - gst_pad_set_query_type_function (parse->srcpad, - GST_DEBUG_FUNCPTR (gst_base_parse_get_querytypes)); - gst_pad_set_query_function (parse->srcpad, - GST_DEBUG_FUNCPTR (gst_base_parse_query)); - gst_pad_use_fixed_caps (parse->srcpad); - gst_element_add_pad (GST_ELEMENT (parse), parse->srcpad); - GST_DEBUG_OBJECT (parse, "src created"); - - parse->adapter = gst_adapter_new (); - - parse->priv->pad_mode = GST_ACTIVATE_NONE; - - /* init state */ - gst_base_parse_reset (parse); - GST_DEBUG_OBJECT (parse, "init ok"); -} - -/** - * gst_base_parse_frame_init: - * @parse: #GstBaseParse. - * @fmt: #GstBaseParseFrame. - * - * Sets a #GstBaseParseFrame to initial state. Currently this means - * all fields are zero-ed. - */ -void -gst_base_parse_frame_init (GstBaseParse * parse, GstBaseParseFrame * frame) -{ - memset (frame, 0, sizeof (*frame)); -} - -/* clear == frame no longer to be used following this */ -static void -gst_base_parse_frame_clear (GstBaseParse * parse, GstBaseParseFrame * frame) -{ - /* limited for now */ - if (frame->buffer) { - gst_buffer_unref (frame->buffer); - frame->buffer = NULL; - } -} - -static inline void -gst_base_parse_frame_update (GstBaseParse * parse, GstBaseParseFrame * frame, - GstBuffer * buf) -{ - gst_buffer_replace (&frame->buffer, buf); - if (parse->priv->drain) { - frame->flags |= GST_BASE_PARSE_FRAME_FLAG_DRAIN; - } else { - frame->flags &= ~(GST_BASE_PARSE_FRAME_FLAG_DRAIN); - } - /* losing sync is pretty much a discont (and vice versa), no ? */ - if (!parse->priv->discont) { - frame->flags |= GST_BASE_PARSE_FRAME_FLAG_SYNC; - } else { - frame->flags &= ~(GST_BASE_PARSE_FRAME_FLAG_SYNC); - } -} - -static void -gst_base_parse_reset (GstBaseParse * parse) -{ - GST_OBJECT_LOCK (parse); - gst_segment_init (&parse->segment, GST_FORMAT_TIME); - parse->priv->duration = -1; - parse->priv->min_frame_size = 1; - parse->priv->discont = TRUE; - parse->priv->flushing = FALSE; - parse->priv->offset = 0; - parse->priv->sync_offset = 0; - parse->priv->update_interval = -1; - parse->priv->fps_num = parse->priv->fps_den = 0; - parse->priv->frame_duration = GST_CLOCK_TIME_NONE; - parse->priv->lead_in = parse->priv->lead_out = 0; - parse->priv->lead_in_ts = parse->priv->lead_out_ts = 0; - parse->priv->seekable = GST_BASE_PARSE_SEEK_DEFAULT; - parse->priv->bitrate = 0; - parse->priv->framecount = 0; - parse->priv->bytecount = 0; - parse->priv->acc_duration = 0; - parse->priv->first_frame_ts = GST_CLOCK_TIME_NONE; - parse->priv->first_frame_offset = -1; - parse->priv->estimated_duration = -1; - parse->priv->next_ts = 0; - parse->priv->format = 0; - parse->priv->post_min_bitrate = TRUE; - parse->priv->post_avg_bitrate = TRUE; - parse->priv->post_max_bitrate = TRUE; - parse->priv->min_bitrate = G_MAXUINT; - parse->priv->max_bitrate = 0; - parse->priv->avg_bitrate = 0; - parse->priv->posted_avg_bitrate = 0; - - parse->priv->index_last_ts = GST_CLOCK_TIME_NONE; - parse->priv->index_last_offset = -1; - parse->priv->index_last_valid = TRUE; - parse->priv->upstream_seekable = FALSE; - parse->priv->upstream_size = 0; - parse->priv->upstream_has_duration = FALSE; - parse->priv->idx_interval = 0; - parse->priv->exact_position = TRUE; - parse->priv->seen_keyframe = FALSE; - - parse->priv->last_ts = GST_CLOCK_TIME_NONE; - parse->priv->last_offset = 0; - - if (parse->pending_segment) { - gst_event_unref (parse->pending_segment); - parse->pending_segment = NULL; - } - - g_list_foreach (parse->priv->pending_events, (GFunc) gst_mini_object_unref, - NULL); - g_list_free (parse->priv->pending_events); - parse->priv->pending_events = NULL; - - if (parse->priv->cache) { - gst_buffer_unref (parse->priv->cache); - parse->priv->cache = NULL; - } - - g_slist_foreach (parse->priv->pending_seeks, (GFunc) g_free, NULL); - g_slist_free (parse->priv->pending_seeks); - parse->priv->pending_seeks = NULL; - - GST_OBJECT_UNLOCK (parse); -} - -/** - * gst_base_parse_check_frame: - * @parse: #GstBaseParse. - * @buffer: GstBuffer. - * @framesize: This will be set to tell the found frame size in bytes. - * @skipsize: Output parameter that tells how much data needs to be skipped - * in order to find the following frame header. - * - * Default callback for check_valid_frame. - * - * Returns: Always TRUE. - */ -static gboolean -gst_base_parse_check_frame (GstBaseParse * parse, - GstBaseParseFrame * frame, guint * framesize, gint * skipsize) -{ - *framesize = GST_BUFFER_SIZE (frame->buffer); - *skipsize = 0; - return TRUE; -} - - -/** - * gst_base_parse_parse_frame: - * @parse: #GstBaseParse. - * @buffer: #GstBuffer. - * - * Default callback for parse_frame. - */ -static GstFlowReturn -gst_base_parse_parse_frame (GstBaseParse * parse, GstBaseParseFrame * frame) -{ - GstBuffer *buffer = frame->buffer; - - if (!GST_BUFFER_TIMESTAMP_IS_VALID (buffer) && - GST_CLOCK_TIME_IS_VALID (parse->priv->next_ts)) { - GST_BUFFER_TIMESTAMP (buffer) = parse->priv->next_ts; - } - if (!GST_BUFFER_DURATION_IS_VALID (buffer) && - GST_CLOCK_TIME_IS_VALID (parse->priv->frame_duration)) { - GST_BUFFER_DURATION (buffer) = parse->priv->frame_duration; - } - return GST_FLOW_OK; -} - -/** - * gst_base_parse_convert: - * @parse: #GstBaseParse. - * @src_format: #GstFormat describing the source format. - * @src_value: Source value to be converted. - * @dest_format: #GstFormat defining the converted format. - * @dest_value: Pointer where the conversion result will be put. - * - * Converts using configured "convert" vmethod in #GstBaseParse class. - * - * Returns: TRUE if conversion was successful. - */ -static gboolean -gst_base_parse_convert (GstBaseParse * parse, - GstFormat src_format, - gint64 src_value, GstFormat dest_format, gint64 * dest_value) -{ - GstBaseParseClass *klass = GST_BASE_PARSE_GET_CLASS (parse); - gboolean ret; - - g_return_val_if_fail (dest_value != NULL, FALSE); - - if (!klass->convert) - return FALSE; - - ret = klass->convert (parse, src_format, src_value, dest_format, dest_value); - -#ifndef GST_DISABLE_GST_DEBUG - { - if (ret) { - if (src_format == GST_FORMAT_TIME && dest_format == GST_FORMAT_BYTES) { - GST_LOG_OBJECT (parse, - "TIME -> BYTES: %" GST_TIME_FORMAT " -> %" G_GINT64_FORMAT, - GST_TIME_ARGS (src_value), *dest_value); - } else if (dest_format == GST_FORMAT_TIME && - src_format == GST_FORMAT_BYTES) { - GST_LOG_OBJECT (parse, - "BYTES -> TIME: %" G_GINT64_FORMAT " -> %" GST_TIME_FORMAT, - src_value, GST_TIME_ARGS (*dest_value)); - } else { - GST_LOG_OBJECT (parse, - "%s -> %s: %" G_GINT64_FORMAT " -> %" G_GINT64_FORMAT, - GST_STR_NULL (gst_format_get_name (src_format)), - GST_STR_NULL (gst_format_get_name (dest_format)), - src_value, *dest_value); - } - } else { - GST_DEBUG_OBJECT (parse, "conversion failed"); - } - } -#endif - - return ret; -} - -/** - * gst_base_parse_sink_event: - * @pad: #GstPad that received the event. - * @event: #GstEvent to be handled. - * - * Handler for sink pad events. - * - * Returns: TRUE if the event was handled. - */ -static gboolean -gst_base_parse_sink_event (GstPad * pad, GstEvent * event) -{ - GstBaseParse *parse; - GstBaseParseClass *bclass; - gboolean handled = FALSE; - gboolean ret = TRUE; - - parse = GST_BASE_PARSE (gst_pad_get_parent (pad)); - bclass = GST_BASE_PARSE_GET_CLASS (parse); - - GST_DEBUG_OBJECT (parse, "handling event %d, %s", GST_EVENT_TYPE (event), - GST_EVENT_TYPE_NAME (event)); - - /* Cache all events except EOS, NEWSEGMENT and FLUSH_STOP if we have a - * pending segment */ - if (parse->pending_segment && GST_EVENT_TYPE (event) != GST_EVENT_EOS - && GST_EVENT_TYPE (event) != GST_EVENT_NEWSEGMENT - && GST_EVENT_TYPE (event) != GST_EVENT_FLUSH_START - && GST_EVENT_TYPE (event) != GST_EVENT_FLUSH_STOP) { - - if (GST_EVENT_TYPE (event) == GST_EVENT_TAG) - /* See if any bitrate tags were posted */ - gst_base_parse_handle_tag (parse, event); - - parse->priv->pending_events = - g_list_append (parse->priv->pending_events, event); - ret = TRUE; - } else { - - if (GST_EVENT_TYPE (event) == GST_EVENT_EOS && - parse->priv->framecount < MIN_FRAMES_TO_POST_BITRATE) - /* We've not posted bitrate tags yet - do so now */ - gst_base_parse_post_bitrates (parse, TRUE, TRUE, TRUE); - - if (bclass->event) - handled = bclass->event (parse, event); - - if (!handled) - handled = gst_base_parse_sink_eventfunc (parse, event); - - if (!handled) - ret = gst_pad_event_default (pad, event); - } - - gst_object_unref (parse); - GST_DEBUG_OBJECT (parse, "event handled"); - return ret; -} - - -/** - * gst_base_parse_sink_eventfunc: - * @parse: #GstBaseParse. - * @event: #GstEvent to be handled. - * - * Element-level event handler function. - * - * The event will be unreffed only if it has been handled and this - * function returns %TRUE - * - * Returns: %TRUE if the event was handled and not need forwarding. - */ -static gboolean -gst_base_parse_sink_eventfunc (GstBaseParse * parse, GstEvent * event) -{ - gboolean handled = FALSE; - GstEvent **eventp; - - switch (GST_EVENT_TYPE (event)) { - case GST_EVENT_NEWSEGMENT: - { - gdouble rate, applied_rate; - GstFormat format; - gint64 start, stop, pos, next_ts, offset = 0; - gboolean update; - - gst_event_parse_new_segment_full (event, &update, &rate, &applied_rate, - &format, &start, &stop, &pos); - - GST_DEBUG_OBJECT (parse, "newseg rate %g, applied rate %g, " - "format %d, start = %" GST_TIME_FORMAT ", stop = %" GST_TIME_FORMAT - ", pos = %" GST_TIME_FORMAT, rate, applied_rate, format, - GST_TIME_ARGS (start), GST_TIME_ARGS (stop), GST_TIME_ARGS (pos)); - - if (format == GST_FORMAT_BYTES) { - GstClockTime seg_start, seg_stop; - GstBaseParseSeek *seek = NULL; - GSList *node; - - /* stop time is allowed to be open-ended, but not start & pos */ - seg_stop = GST_CLOCK_TIME_NONE; - seg_start = 0; - offset = pos; - - GST_OBJECT_LOCK (parse); - for (node = parse->priv->pending_seeks; node; node = node->next) { - GstBaseParseSeek *tmp = node->data; - - if (tmp->offset == pos) { - seek = tmp; - break; - } - } - parse->priv->pending_seeks = - g_slist_remove (parse->priv->pending_seeks, seek); - GST_OBJECT_UNLOCK (parse); - - if (seek) { - GST_DEBUG_OBJECT (parse, - "Matched newsegment to%s seek: %" GST_SEGMENT_FORMAT, - seek->accurate ? " accurate" : "", &seek->segment); - seg_start = seek->segment.start; - seg_stop = seek->segment.stop; - next_ts = seek->start_ts; - parse->priv->exact_position = seek->accurate; - g_free (seek); - } else { - /* best attempt convert */ - /* as these are only estimates, stop is kept open-ended to avoid - * premature cutting */ - gst_base_parse_convert (parse, GST_FORMAT_BYTES, start, - GST_FORMAT_TIME, (gint64 *) & seg_start); - parse->priv->exact_position = (start == 0); - next_ts = seg_start; - } - - gst_event_unref (event); - event = gst_event_new_new_segment_full (update, rate, applied_rate, - GST_FORMAT_TIME, seg_start, seg_stop, seg_start); - format = GST_FORMAT_TIME; - start = seg_start; - stop = seg_stop; - GST_DEBUG_OBJECT (parse, "Converted incoming segment to TIME. " - "start = %" GST_TIME_FORMAT ", stop = %" GST_TIME_FORMAT, - GST_TIME_ARGS (seg_start), GST_TIME_ARGS (seg_stop)); - } else if (format != GST_FORMAT_TIME) { - /* Unknown incoming segment format. Output a default open-ended - * TIME segment */ - gst_event_unref (event); - event = gst_event_new_new_segment_full (update, rate, applied_rate, - GST_FORMAT_TIME, 0, GST_CLOCK_TIME_NONE, 0); - format = GST_FORMAT_TIME; - next_ts = start = 0; - stop = GST_CLOCK_TIME_NONE; - } else { - /* not considered BYTE seekable if it is talking to us in TIME, - * whatever else it might claim */ - parse->priv->upstream_seekable = FALSE; - next_ts = start; - } - - gst_segment_set_newsegment_full (&parse->segment, update, rate, - applied_rate, format, start, stop, start); - - /* save the segment for later, right before we push a new buffer so that - * the caps are fixed and the next linked element can receive - * the segment. */ - eventp = &parse->pending_segment; - gst_event_replace (eventp, event); - gst_event_unref (event); - handled = TRUE; - - /* but finish the current segment */ - GST_DEBUG_OBJECT (parse, "draining current segment"); - if (parse->segment.rate > 0.0) - gst_base_parse_drain (parse); - else - gst_base_parse_process_fragment (parse, FALSE); - gst_adapter_clear (parse->adapter); - parse->priv->offset = offset; - parse->priv->sync_offset = offset; - parse->priv->next_ts = next_ts; - parse->priv->last_ts = GST_CLOCK_TIME_NONE; - parse->priv->discont = TRUE; - parse->priv->seen_keyframe = FALSE; - break; - } - - case GST_EVENT_FLUSH_START: - parse->priv->flushing = TRUE; - handled = gst_pad_push_event (parse->srcpad, gst_event_ref (event)); - if (handled) - gst_event_unref (event); - /* Wait for _chain() to exit by taking the srcpad STREAM_LOCK */ - GST_PAD_STREAM_LOCK (parse->srcpad); - GST_PAD_STREAM_UNLOCK (parse->srcpad); - - break; - - case GST_EVENT_FLUSH_STOP: - gst_adapter_clear (parse->adapter); - gst_base_parse_clear_queues (parse); - parse->priv->flushing = FALSE; - parse->priv->discont = TRUE; - parse->priv->last_ts = GST_CLOCK_TIME_NONE; - break; - - case GST_EVENT_EOS: - if (parse->segment.rate > 0.0) - gst_base_parse_drain (parse); - else - gst_base_parse_process_fragment (parse, FALSE); - - /* If we STILL have zero frames processed, fire an error */ - if (parse->priv->framecount == 0) { - GST_ELEMENT_ERROR (parse, STREAM, WRONG_TYPE, - ("No valid frames found before end of stream"), (NULL)); - } - /* newsegment before eos */ - if (parse->pending_segment) { - gst_pad_push_event (parse->srcpad, parse->pending_segment); - parse->pending_segment = NULL; - } - break; - - default: - break; - } - - return handled; -} - - -/** - * gst_base_parse_src_event: - * @pad: #GstPad that received the event. - * @event: #GstEvent that was received. - * - * Handler for source pad events. - * - * Returns: TRUE if the event was handled. - */ -static gboolean -gst_base_parse_src_event (GstPad * pad, GstEvent * event) -{ - GstBaseParse *parse; - GstBaseParseClass *bclass; - gboolean handled = FALSE; - gboolean ret = TRUE; - - parse = GST_BASE_PARSE (gst_pad_get_parent (pad)); - bclass = GST_BASE_PARSE_GET_CLASS (parse); - - GST_DEBUG_OBJECT (parse, "event %d, %s", GST_EVENT_TYPE (event), - GST_EVENT_TYPE_NAME (event)); - - if (bclass->src_event) - handled = bclass->src_event (parse, event); - - if (!handled) - ret = gst_pad_event_default (pad, event); - - gst_object_unref (parse); - return ret; -} - - -/** - * gst_base_parse_src_eventfunc: - * @parse: #GstBaseParse. - * @event: #GstEvent that was received. - * - * Default srcpad event handler. - * - * Returns: TRUE if the event was handled and can be dropped. - */ -static gboolean -gst_base_parse_src_eventfunc (GstBaseParse * parse, GstEvent * event) -{ - gboolean handled = FALSE; - - switch (GST_EVENT_TYPE (event)) { - case GST_EVENT_SEEK: - { - if (parse->priv->seekable > GST_BASE_PARSE_SEEK_NONE) { - handled = gst_base_parse_handle_seek (parse, event); - } - break; - } - default: - break; - } - return handled; -} - - -/** - * gst_base_parse_convert_default: - * @parse: #GstBaseParse. - * @src_format: #GstFormat describing the source format. - * @src_value: Source value to be converted. - * @dest_format: #GstFormat defining the converted format. - * @dest_value: Pointer where the conversion result will be put. - * - * Default implementation of "convert" vmethod in #GstBaseParse class. - * - * Returns: TRUE if conversion was successful. - */ -gboolean -gst_base_parse_convert_default (GstBaseParse * parse, - GstFormat src_format, - gint64 src_value, GstFormat dest_format, gint64 * dest_value) -{ - gboolean ret = FALSE; - guint64 bytes, duration; - - if (G_UNLIKELY (src_format == dest_format)) { - *dest_value = src_value; - return TRUE; - } - - if (G_UNLIKELY (src_value == -1)) { - *dest_value = -1; - return TRUE; - } - - if (G_UNLIKELY (src_value == 0)) { - *dest_value = 0; - return TRUE; - } - - /* need at least some frames */ - if (!parse->priv->framecount) - return FALSE; - - duration = parse->priv->acc_duration / GST_MSECOND; - bytes = parse->priv->bytecount; - - if (G_UNLIKELY (!duration || !bytes)) - return FALSE; - - if (src_format == GST_FORMAT_BYTES) { - if (dest_format == GST_FORMAT_TIME) { - /* BYTES -> TIME conversion */ - GST_DEBUG_OBJECT (parse, "converting bytes -> time"); - *dest_value = gst_util_uint64_scale (src_value, duration, bytes); - *dest_value *= GST_MSECOND; - GST_DEBUG_OBJECT (parse, "conversion result: %" G_GINT64_FORMAT " ms", - *dest_value / GST_MSECOND); - ret = TRUE; - } - } else if (src_format == GST_FORMAT_TIME) { - if (dest_format == GST_FORMAT_BYTES) { - GST_DEBUG_OBJECT (parse, "converting time -> bytes"); - *dest_value = gst_util_uint64_scale (src_value / GST_MSECOND, bytes, - duration); - GST_DEBUG_OBJECT (parse, - "time %" G_GINT64_FORMAT " ms in bytes = %" G_GINT64_FORMAT, - src_value / GST_MSECOND, *dest_value); - ret = TRUE; - } - } else if (src_format == GST_FORMAT_DEFAULT) { - /* DEFAULT == frame-based */ - if (dest_format == GST_FORMAT_TIME) { - if (parse->priv->fps_den) { - *dest_value = gst_util_uint64_scale (src_value, - GST_SECOND * parse->priv->fps_den, parse->priv->fps_num); - ret = TRUE; - } - } else if (dest_format == GST_FORMAT_BYTES) { - } - } - - return ret; -} - -/** - * gst_base_parse_update_duration: - * @parse: #GstBaseParse. - * - */ -static void -gst_base_parse_update_duration (GstBaseParse * aacparse) -{ - GstPad *peer; - GstBaseParse *parse; - - parse = GST_BASE_PARSE (aacparse); - - peer = gst_pad_get_peer (parse->sinkpad); - if (peer) { - GstFormat pformat = GST_FORMAT_BYTES; - gboolean qres = FALSE; - gint64 ptot, dest_value; - - qres = gst_pad_query_duration (peer, &pformat, &ptot); - gst_object_unref (GST_OBJECT (peer)); - if (qres) { - if (gst_base_parse_convert (parse, pformat, ptot, - GST_FORMAT_TIME, &dest_value)) { - parse->priv->estimated_duration = dest_value; - GST_LOG_OBJECT (parse, - "updated estimated duration to %" GST_TIME_FORMAT, - GST_TIME_ARGS (dest_value)); - } - } - } -} - -static void -gst_base_parse_post_bitrates (GstBaseParse * parse, gboolean post_min, - gboolean post_avg, gboolean post_max) -{ - GstTagList *taglist = gst_tag_list_new (); - - if (post_min && parse->priv->post_min_bitrate) - gst_tag_list_add (taglist, GST_TAG_MERGE_REPLACE, - GST_TAG_MINIMUM_BITRATE, parse->priv->min_bitrate, NULL); - - if (post_avg && parse->priv->post_avg_bitrate) { - parse->priv->posted_avg_bitrate = parse->priv->avg_bitrate; - gst_tag_list_add (taglist, GST_TAG_MERGE_REPLACE, GST_TAG_BITRATE, - parse->priv->avg_bitrate, NULL); - } - - if (post_max && parse->priv->post_max_bitrate) - gst_tag_list_add (taglist, GST_TAG_MERGE_REPLACE, - GST_TAG_MAXIMUM_BITRATE, parse->priv->max_bitrate, NULL); - - GST_DEBUG_OBJECT (parse, "Updated bitrates. Min: %u, Avg: %u, Max: %u", - parse->priv->min_bitrate, parse->priv->avg_bitrate, - parse->priv->max_bitrate); - - gst_element_found_tags_for_pad (GST_ELEMENT (parse), parse->srcpad, taglist); -} - -/** - * gst_base_parse_update_bitrates: - * @parse: #GstBaseParse. - * @buffer: Current frame as a #GstBuffer - * - * Keeps track of the minimum and maximum bitrates, and also maintains a - * running average bitrate of the stream so far. - */ -static void -gst_base_parse_update_bitrates (GstBaseParse * parse, GstBaseParseFrame * frame) -{ - /* Only update the tag on a 10 kbps delta */ - static const gint update_threshold = 10000; - - GstBaseParseClass *klass; - guint64 data_len, frame_dur; - gint overhead, frame_bitrate, old_avg_bitrate; - gboolean update_min = FALSE, update_avg = FALSE, update_max = FALSE; - GstBuffer *buffer = frame->buffer; - - klass = GST_BASE_PARSE_GET_CLASS (parse); - - overhead = frame->overhead; - if (overhead == -1) - return; - - data_len = GST_BUFFER_SIZE (buffer) - overhead; - parse->priv->data_bytecount += data_len; - - /* duration should be valid by now, - * either set by subclass or maybe based on fps settings */ - if (GST_BUFFER_DURATION_IS_VALID (buffer) && parse->priv->acc_duration != 0) { - /* Calculate duration of a frame from buffer properties */ - frame_dur = GST_BUFFER_DURATION (buffer); - parse->priv->avg_bitrate = (8 * parse->priv->data_bytecount * GST_SECOND) / - parse->priv->acc_duration; - - } else { - /* No way to figure out frame duration (is this even possible?) */ - return; - } - - /* override if subclass provided bitrate, e.g. metadata based */ - if (parse->priv->bitrate) { - parse->priv->avg_bitrate = parse->priv->bitrate; - /* spread this (confirmed) info ASAP */ - if (parse->priv->posted_avg_bitrate != parse->priv->avg_bitrate) - gst_base_parse_post_bitrates (parse, FALSE, TRUE, FALSE); - } - - if (frame_dur) - frame_bitrate = (8 * data_len * GST_SECOND) / frame_dur; - else - return; - - GST_LOG_OBJECT (parse, "frame bitrate %u, avg bitrate %u", frame_bitrate, - parse->priv->avg_bitrate); - - if (parse->priv->framecount < MIN_FRAMES_TO_POST_BITRATE) { - goto exit; - } else if (parse->priv->framecount == MIN_FRAMES_TO_POST_BITRATE) { - /* always post all at threshold time */ - update_min = update_max = update_avg = TRUE; - } - - if (G_LIKELY (parse->priv->framecount >= MIN_FRAMES_TO_POST_BITRATE)) { - if (frame_bitrate < parse->priv->min_bitrate) { - parse->priv->min_bitrate = frame_bitrate; - update_min = TRUE; - } - - if (frame_bitrate > parse->priv->max_bitrate) { - parse->priv->max_bitrate = frame_bitrate; - update_max = TRUE; - } - - old_avg_bitrate = parse->priv->posted_avg_bitrate; - if ((gint) (old_avg_bitrate - parse->priv->avg_bitrate) > update_threshold - || (gint) (parse->priv->avg_bitrate - old_avg_bitrate) > - update_threshold) - update_avg = TRUE; - } - - if ((update_min || update_avg || update_max)) - gst_base_parse_post_bitrates (parse, update_min, update_avg, update_max); - - /* If average bitrate changes that much and no valid (time) duration provided, - * then post a new duration message so applications can update their cached - * values */ - if (update_avg && !(parse->priv->duration_fmt == GST_FORMAT_TIME && - GST_CLOCK_TIME_IS_VALID (parse->priv->duration))) - gst_element_post_message (GST_ELEMENT (parse), - gst_message_new_duration (GST_OBJECT (parse), GST_FORMAT_TIME, -1)); - -exit: - return; -} - -/** - * gst_base_parse_add_index_entry: - * @parse: #GstBaseParse. - * @offset: offset of entry - * @ts: timestamp associated with offset - * @key: whether entry refers to keyframe - * @force: add entry disregarding sanity checks - * - * Adds an entry to the index associating @offset to @ts. It is recommended - * to only add keyframe entries. @force allows to bypass checks, such as - * whether the stream is (upstream) seekable, another entry is already "close" - * to the new entry, etc. - * - * Returns: #gboolean indicating whether entry was added - */ -gboolean -gst_base_parse_add_index_entry (GstBaseParse * parse, guint64 offset, - GstClockTime ts, gboolean key, gboolean force) -{ - gboolean ret = FALSE; - GstIndexAssociation associations[2]; - - GST_LOG_OBJECT (parse, "Adding key=%d index entry %" GST_TIME_FORMAT - " @ offset 0x%08" G_GINT64_MODIFIER "x", key, GST_TIME_ARGS (ts), offset); - - if (G_LIKELY (!force)) { - - if (!parse->priv->upstream_seekable) { - GST_DEBUG_OBJECT (parse, "upstream not seekable; discarding"); - goto exit; - } - - /* FIXME need better helper data structure that handles these issues - * related to ongoing collecting of index entries */ - if (parse->priv->index_last_offset >= (gint64) offset) { - GST_DEBUG_OBJECT (parse, "already have entries up to offset " - "0x%08" G_GINT64_MODIFIER "x", parse->priv->index_last_offset); - goto exit; - } - - if (GST_CLOCK_TIME_IS_VALID (parse->priv->index_last_ts) && - GST_CLOCK_DIFF (parse->priv->index_last_ts, ts) < - parse->priv->idx_interval) { - GST_DEBUG_OBJECT (parse, "entry too close to last time %" GST_TIME_FORMAT, - GST_TIME_ARGS (parse->priv->index_last_ts)); - goto exit; - } - - /* if last is not really the last one */ - if (!parse->priv->index_last_valid) { - GstClockTime prev_ts; - - gst_base_parse_find_offset (parse, ts, TRUE, &prev_ts); - if (GST_CLOCK_DIFF (prev_ts, ts) < parse->priv->idx_interval) { - GST_DEBUG_OBJECT (parse, - "entry too close to existing entry %" GST_TIME_FORMAT, - GST_TIME_ARGS (prev_ts)); - parse->priv->index_last_offset = offset; - parse->priv->index_last_ts = ts; - goto exit; - } - } - } - - associations[0].format = GST_FORMAT_TIME; - associations[0].value = ts; - associations[1].format = GST_FORMAT_BYTES; - associations[1].value = offset; - - /* index might change on-the-fly, although that would be nutty app ... */ - GST_OBJECT_LOCK (parse); - gst_index_add_associationv (parse->priv->index, parse->priv->index_id, - (key) ? GST_ASSOCIATION_FLAG_KEY_UNIT : GST_ASSOCIATION_FLAG_NONE, - 2, (const GstIndexAssociation *) &associations); - GST_OBJECT_UNLOCK (parse); - - if (key) { - parse->priv->index_last_offset = offset; - parse->priv->index_last_ts = ts; - } - - ret = TRUE; - -exit: - return ret; -} - -/* check for seekable upstream, above and beyond a mere query */ -static void -gst_base_parse_check_seekability (GstBaseParse * parse) -{ - GstQuery *query; - gboolean seekable = FALSE; - gint64 start = -1, stop = -1; - guint idx_interval = 0; - - query = gst_query_new_seeking (GST_FORMAT_BYTES); - if (!gst_pad_peer_query (parse->sinkpad, query)) { - GST_DEBUG_OBJECT (parse, "seeking query failed"); - goto done; - } - - gst_query_parse_seeking (query, NULL, &seekable, &start, &stop); - - /* try harder to query upstream size if we didn't get it the first time */ - if (seekable && stop == -1) { - GstFormat fmt = GST_FORMAT_BYTES; - - GST_DEBUG_OBJECT (parse, "doing duration query to fix up unset stop"); - gst_pad_query_peer_duration (parse->sinkpad, &fmt, &stop); - } - - /* if upstream doesn't know the size, it's likely that it's not seekable in - * practice even if it technically may be seekable */ - if (seekable && (start != 0 || stop <= start)) { - GST_DEBUG_OBJECT (parse, "seekable but unknown start/stop -> disable"); - seekable = FALSE; - } - - /* let's not put every single frame into our index */ - if (seekable) { - if (stop < 10 * 1024 * 1024) - idx_interval = 100; - else if (stop < 100 * 1024 * 1024) - idx_interval = 500; - else - idx_interval = 1000; - } - -done: - gst_query_unref (query); - - GST_DEBUG_OBJECT (parse, "seekable: %d (%" G_GUINT64_FORMAT " - %" - G_GUINT64_FORMAT ")", seekable, start, stop); - parse->priv->upstream_seekable = seekable; - parse->priv->upstream_size = seekable ? stop : 0; - - GST_DEBUG_OBJECT (parse, "idx_interval: %ums", idx_interval); - parse->priv->idx_interval = idx_interval * GST_MSECOND; -} - -/* some misc checks on upstream */ -static void -gst_base_parse_check_upstream (GstBaseParse * parse) -{ - GstFormat fmt = GST_FORMAT_TIME; - gint64 stop; - - if (gst_pad_query_peer_duration (parse->sinkpad, &fmt, &stop)) - if (GST_CLOCK_TIME_IS_VALID (stop) && stop) { - /* upstream has one, accept it also, and no further updates */ - gst_base_parse_set_duration (parse, GST_FORMAT_TIME, stop, 0); - parse->priv->upstream_has_duration = TRUE; - } - - GST_DEBUG_OBJECT (parse, "upstream_has_duration: %d", - parse->priv->upstream_has_duration); -} - -/* checks src caps to determine if dealing with audio or video */ -/* TODO maybe forego automagic stuff and let subclass configure it ? */ -static void -gst_base_parse_check_media (GstBaseParse * parse) -{ - GstCaps *caps; - GstStructure *s; - - caps = GST_PAD_CAPS (parse->srcpad); - if (G_LIKELY (caps) && (s = gst_caps_get_structure (caps, 0))) { - parse->priv->is_video = - g_str_has_prefix (gst_structure_get_name (s), "video"); - } else { - /* historical default */ - parse->priv->is_video = FALSE; - } - - GST_DEBUG_OBJECT (parse, "media is video == %d", parse->priv->is_video); -} - -/** - * gst_base_parse_handle_and_push_buffer: - * @parse: #GstBaseParse. - * @klass: #GstBaseParseClass. - * @buffer: #GstBuffer. - * - * Parses the frame from given buffer and pushes it forward. Also performs - * timestamp handling and checks the segment limits. - * - * This is called with srcpad STREAM_LOCK held. - * - * Returns: #GstFlowReturn - */ -static GstFlowReturn -gst_base_parse_handle_and_push_frame (GstBaseParse * parse, - GstBaseParseClass * klass, GstBaseParseFrame * frame) -{ - GstFlowReturn ret; - gint64 offset; - GstBuffer *buffer; - - g_return_val_if_fail (frame != NULL, GST_FLOW_ERROR); - - buffer = frame->buffer; - - if (parse->priv->discont) { - GST_DEBUG_OBJECT (parse, "marking DISCONT"); - GST_BUFFER_FLAG_SET (buffer, GST_BUFFER_FLAG_DISCONT); - parse->priv->discont = FALSE; - } - - /* some one-time start-up */ - if (G_UNLIKELY (!parse->priv->framecount)) { - gst_base_parse_check_seekability (parse); - gst_base_parse_check_upstream (parse); - } - - GST_LOG_OBJECT (parse, - "parsing frame at offset %" G_GUINT64_FORMAT - " (%#" G_GINT64_MODIFIER "x) of size %d", - GST_BUFFER_OFFSET (buffer), GST_BUFFER_OFFSET (buffer), - GST_BUFFER_SIZE (buffer)); - - /* use default handler to provide initial (upstream) metadata */ - gst_base_parse_parse_frame (parse, frame); - - /* store offset as it might get overwritten */ - offset = GST_BUFFER_OFFSET (buffer); - ret = klass->parse_frame (parse, frame); - /* sync */ - buffer = frame->buffer; - /* subclass must play nice */ - g_return_val_if_fail (buffer != NULL, GST_FLOW_ERROR); - - /* check if subclass/format can provide ts. - * If so, that allows and enables extra seek and duration determining options */ - if (G_UNLIKELY (parse->priv->first_frame_offset < 0 && ret == GST_FLOW_OK)) { - if (GST_BUFFER_TIMESTAMP_IS_VALID (buffer) && - GST_BASE_PARSE_HAS_TIME (parse) && - parse->priv->pad_mode == GST_ACTIVATE_PULL) { - parse->priv->first_frame_offset = offset; - parse->priv->first_frame_ts = GST_BUFFER_TIMESTAMP (buffer); - GST_DEBUG_OBJECT (parse, "subclass provided ts %" GST_TIME_FORMAT - " for first frame at offset %" G_GINT64_FORMAT, - GST_TIME_ARGS (parse->priv->first_frame_ts), - parse->priv->first_frame_offset); - if (!GST_CLOCK_TIME_IS_VALID (parse->priv->duration)) { - gint64 off; - GstClockTime last_ts = G_MAXINT64; - - GST_DEBUG_OBJECT (parse, "no duration; trying scan to determine"); - gst_base_parse_locate_time (parse, &last_ts, &off); - if (GST_CLOCK_TIME_IS_VALID (last_ts)) - gst_base_parse_set_duration (parse, GST_FORMAT_TIME, last_ts, 0); - } - } else { - /* disable further checks */ - parse->priv->first_frame_offset = 0; - } - } - - /* again use default handler to add missing metadata; - * we may have new information on frame properties */ - gst_base_parse_parse_frame (parse, frame); - if (GST_BUFFER_TIMESTAMP_IS_VALID (buffer) && - GST_BUFFER_DURATION_IS_VALID (buffer)) { - parse->priv->next_ts = - GST_BUFFER_TIMESTAMP (buffer) + GST_BUFFER_DURATION (buffer); - } else { - /* we lost track, do not produce bogus time next time around - * (probably means parser subclass has given up on parsing as well) */ - GST_DEBUG_OBJECT (parse, "no next fallback timestamp"); - parse->priv->next_ts = GST_CLOCK_TIME_NONE; - } - - if (parse->priv->upstream_seekable && parse->priv->exact_position && - GST_BUFFER_TIMESTAMP_IS_VALID (buffer)) - gst_base_parse_add_index_entry (parse, offset, - GST_BUFFER_TIMESTAMP (buffer), - !GST_BUFFER_FLAG_IS_SET (buffer, GST_BUFFER_FLAG_DELTA_UNIT), FALSE); - - /* First buffers are dropped, this means that the subclass needs more - * frames to decide on the format and queues them internally */ - /* convert internal flow to OK and mark discont for the next buffer. */ - if (ret == GST_BASE_PARSE_FLOW_DROPPED) { - gst_base_parse_frame_clear (parse, frame); - return GST_FLOW_OK; - } else if (ret != GST_FLOW_OK) { - return ret; - } - - return gst_base_parse_push_frame (parse, frame); -} - -/** - * gst_base_parse_push_frame: - * @parse: #GstBaseParse. - * @frame: #GstBaseParseFrame. - * - * Pushes the frame downstream, sends any pending events and - * does some timestamp and segment handling. - * - * This must be called with sinkpad STREAM_LOCK held. - * - * Returns: #GstFlowReturn - */ -GstFlowReturn -gst_base_parse_push_frame (GstBaseParse * parse, GstBaseParseFrame * frame) -{ - GstFlowReturn ret = GST_FLOW_OK; - GstClockTime last_start = GST_CLOCK_TIME_NONE; - GstClockTime last_stop = GST_CLOCK_TIME_NONE; - GstBaseParseClass *klass = GST_BASE_PARSE_GET_CLASS (parse); - GstBuffer *buffer; - - g_return_val_if_fail (frame != NULL, GST_FLOW_ERROR); - g_return_val_if_fail (frame->buffer != NULL, GST_FLOW_ERROR); - - buffer = frame->buffer; - - GST_LOG_OBJECT (parse, - "processing buffer of size %d with ts %" GST_TIME_FORMAT - ", duration %" GST_TIME_FORMAT, GST_BUFFER_SIZE (buffer), - GST_TIME_ARGS (GST_BUFFER_TIMESTAMP (buffer)), - GST_TIME_ARGS (GST_BUFFER_DURATION (buffer))); - - /* update stats */ - parse->priv->bytecount += GST_BUFFER_SIZE (buffer); - if (G_LIKELY (!(frame->flags & GST_BASE_PARSE_FRAME_FLAG_NO_FRAME))) { - parse->priv->framecount++; - if (GST_BUFFER_DURATION_IS_VALID (buffer)) { - parse->priv->acc_duration += GST_BUFFER_DURATION (buffer); - } - } - /* 0 means disabled */ - if (parse->priv->update_interval < 0) - parse->priv->update_interval = 50; - else if (parse->priv->update_interval > 0 && - (parse->priv->framecount % parse->priv->update_interval) == 0) - gst_base_parse_update_duration (parse); - - if (GST_BUFFER_TIMESTAMP_IS_VALID (buffer)) - last_start = last_stop = GST_BUFFER_TIMESTAMP (buffer); - if (last_start != GST_CLOCK_TIME_NONE - && GST_BUFFER_DURATION_IS_VALID (buffer)) - last_stop = last_start + GST_BUFFER_DURATION (buffer); - - /* should have caps by now */ - g_return_val_if_fail (GST_PAD_CAPS (parse->srcpad), GST_FLOW_ERROR); - - /* segment adjustment magic; only if we are running the whole show */ - if (!GST_BASE_PARSE_PASSTHROUGH (parse) && parse->segment.rate > 0.0 && - (parse->priv->pad_mode == GST_ACTIVATE_PULL || - parse->priv->upstream_seekable)) { - /* segment times are typically estimates, - * actual frame data might lead subclass to different timestamps, - * so override segment start from what is supplied there */ - if (G_UNLIKELY (parse->pending_segment && !parse->priv->exact_position && - GST_CLOCK_TIME_IS_VALID (last_start))) { - gst_event_unref (parse->pending_segment); - parse->segment.start = - MIN ((guint64) last_start, (guint64) parse->segment.stop); - GST_DEBUG_OBJECT (parse, - "adjusting pending segment start to %" GST_TIME_FORMAT, - GST_TIME_ARGS (parse->segment.start)); - parse->pending_segment = - gst_event_new_new_segment (FALSE, parse->segment.rate, - parse->segment.format, parse->segment.start, parse->segment.stop, - parse->segment.start); - } - /* handle gaps, e.g. non-zero start-time, in as much not handled by above */ - if (GST_CLOCK_TIME_IS_VALID (parse->segment.last_stop) && - GST_CLOCK_TIME_IS_VALID (last_start)) { - GstClockTimeDiff diff; - - /* only send newsegments with increasing start times, - * otherwise if these go back and forth downstream (sinks) increase - * accumulated time and running_time */ - diff = GST_CLOCK_DIFF (parse->segment.last_stop, last_start); - if (G_UNLIKELY (diff > 2 * GST_SECOND && last_start > parse->segment.start - && (!GST_CLOCK_TIME_IS_VALID (parse->segment.stop) || - last_start < parse->segment.stop))) { - GST_DEBUG_OBJECT (parse, - "Gap of %" G_GINT64_FORMAT " ns detected in stream " - "(%" GST_TIME_FORMAT " -> %" GST_TIME_FORMAT "). " - "Sending updated NEWSEGMENT events", diff, - GST_TIME_ARGS (parse->segment.last_stop), - GST_TIME_ARGS (last_start)); - if (G_UNLIKELY (parse->pending_segment)) { - gst_event_unref (parse->pending_segment); - parse->segment.start = last_start; - parse->pending_segment = - gst_event_new_new_segment (FALSE, parse->segment.rate, - parse->segment.format, parse->segment.start, parse->segment.stop, - parse->segment.start); - } else { - /* send newsegment events such that the gap is not accounted in - * accum time, hence running_time */ - /* close ahead of gap */ - gst_pad_push_event (parse->srcpad, - gst_event_new_new_segment (TRUE, parse->segment.rate, - parse->segment.format, parse->segment.last_stop, - parse->segment.last_stop, parse->segment.last_stop)); - /* skip gap */ - gst_pad_push_event (parse->srcpad, - gst_event_new_new_segment (FALSE, parse->segment.rate, - parse->segment.format, last_start, parse->segment.stop, - last_start)); - } - /* align segment view with downstream, - * prevents double-counting accum when closing segment */ - gst_segment_set_newsegment (&parse->segment, FALSE, - parse->segment.rate, parse->segment.format, last_start, - parse->segment.stop, last_start); - parse->segment.last_stop = last_start; - } - } - } - - /* and should then also be linked downstream, so safe to send some events */ - if (G_UNLIKELY (parse->close_segment)) { - /* only set up by loop */ - GST_DEBUG_OBJECT (parse, "loop sending close segment"); - gst_pad_push_event (parse->srcpad, parse->close_segment); - parse->close_segment = NULL; - } - if (G_UNLIKELY (parse->pending_segment)) { - GST_DEBUG_OBJECT (parse, "%s push pending segment", - parse->priv->pad_mode == GST_ACTIVATE_PULL ? "loop" : "chain"); - gst_pad_push_event (parse->srcpad, parse->pending_segment); - parse->pending_segment = NULL; - - /* have caps; check identity */ - gst_base_parse_check_media (parse); - } - - /* update bitrates and optionally post corresponding tags - * (following newsegment) */ - gst_base_parse_update_bitrates (parse, frame); - - if (G_UNLIKELY (parse->priv->pending_events)) { - GList *l; - - for (l = parse->priv->pending_events; l != NULL; l = l->next) { - gst_pad_push_event (parse->srcpad, GST_EVENT (l->data)); - } - g_list_free (parse->priv->pending_events); - parse->priv->pending_events = NULL; - } - - if (klass->pre_push_frame) { - ret = klass->pre_push_frame (parse, frame); - } else { - frame->flags |= GST_BASE_PARSE_FRAME_FLAG_CLIP; - } - - /* take final ownership of frame buffer */ - buffer = frame->buffer; - frame->buffer = NULL; - - /* subclass must play nice */ - g_return_val_if_fail (buffer != NULL, GST_FLOW_ERROR); - - /* decorate */ - gst_buffer_set_caps (buffer, GST_PAD_CAPS (parse->srcpad)); - - parse->priv->seen_keyframe |= parse->priv->is_video && - !GST_BUFFER_FLAG_IS_SET (buffer, GST_BUFFER_FLAG_DELTA_UNIT); - - if (frame->flags & GST_BASE_PARSE_FRAME_FLAG_CLIP) { - if (GST_BUFFER_TIMESTAMP_IS_VALID (buffer) && - GST_CLOCK_TIME_IS_VALID (parse->segment.stop) && - GST_BUFFER_TIMESTAMP (buffer) > - parse->segment.stop + parse->priv->lead_out_ts) { - GST_LOG_OBJECT (parse, "Dropped frame, after segment"); - ret = GST_FLOW_UNEXPECTED; - } else if (GST_BUFFER_TIMESTAMP_IS_VALID (buffer) && - GST_BUFFER_DURATION_IS_VALID (buffer) && - GST_CLOCK_TIME_IS_VALID (parse->segment.start) && - GST_BUFFER_TIMESTAMP (buffer) + GST_BUFFER_DURATION (buffer) + - parse->priv->lead_in_ts < parse->segment.start) { - if (parse->priv->seen_keyframe) { - GST_LOG_OBJECT (parse, "Frame before segment, after keyframe"); - ret = GST_FLOW_OK; - } else { - GST_LOG_OBJECT (parse, "Dropped frame, before segment"); - ret = GST_BASE_PARSE_FLOW_DROPPED; - } - } else { - ret = GST_FLOW_OK; - } - } - - if (ret == GST_BASE_PARSE_FLOW_DROPPED) { - GST_LOG_OBJECT (parse, "frame (%d bytes) dropped", - GST_BUFFER_SIZE (buffer)); - gst_buffer_unref (buffer); - ret = GST_FLOW_OK; - } else if (ret == GST_FLOW_OK) { - if (parse->segment.rate > 0.0) { - ret = gst_pad_push (parse->srcpad, buffer); - GST_LOG_OBJECT (parse, "frame (%d bytes) pushed: %s", - GST_BUFFER_SIZE (buffer), gst_flow_get_name (ret)); - } else { - GST_LOG_OBJECT (parse, "frame (%d bytes) queued for now", - GST_BUFFER_SIZE (buffer)); - parse->priv->buffers_queued = - g_slist_prepend (parse->priv->buffers_queued, buffer); - ret = GST_FLOW_OK; - } - } else { - gst_buffer_unref (buffer); - GST_LOG_OBJECT (parse, "frame (%d bytes) not pushed: %s", - GST_BUFFER_SIZE (buffer), gst_flow_get_name (ret)); - /* if we are not sufficiently in control, let upstream decide on EOS */ - if (ret == GST_FLOW_UNEXPECTED && - (GST_BASE_PARSE_PASSTHROUGH (parse) || - (parse->priv->pad_mode == GST_ACTIVATE_PUSH && - !parse->priv->upstream_seekable))) - ret = GST_FLOW_OK; - } - - /* Update current running segment position */ - if (ret == GST_FLOW_OK && last_stop != GST_CLOCK_TIME_NONE && - parse->segment.last_stop < last_stop) - gst_segment_set_last_stop (&parse->segment, GST_FORMAT_TIME, last_stop); - - gst_base_parse_frame_clear (parse, frame); - - return ret; -} - - -/** - * gst_base_parse_drain: - * @parse: #GstBaseParse. - * - * Drains the adapter until it is empty. It decreases the min_frame_size to - * match the current adapter size and calls chain method until the adapter - * is emptied or chain returns with error. - */ -static void -gst_base_parse_drain (GstBaseParse * parse) -{ - guint avail; - - GST_DEBUG_OBJECT (parse, "draining"); - parse->priv->drain = TRUE; - - for (;;) { - avail = gst_adapter_available (parse->adapter); - if (!avail) - break; - - if (gst_base_parse_chain (parse->sinkpad, NULL) != GST_FLOW_OK) { - break; - } - - /* nothing changed, maybe due to truncated frame; break infinite loop */ - if (avail == gst_adapter_available (parse->adapter)) { - GST_DEBUG_OBJECT (parse, "no change during draining; flushing"); - gst_adapter_clear (parse->adapter); - } - } - - parse->priv->drain = FALSE; -} - -/** - * gst_base_parse_process_fragment: - * @parse: #GstBaseParse. - * - * Sends buffers collected in send_buffers downstream, and ensures that list - * is empty at the end (errors or not). - */ -static GstFlowReturn -gst_base_parse_send_buffers (GstBaseParse * parse) -{ - GSList *send = NULL; - GstBuffer *buf; - GstFlowReturn ret = GST_FLOW_OK; - - send = parse->priv->buffers_send; - - /* send buffers */ - while (send) { - buf = GST_BUFFER_CAST (send->data); - GST_LOG_OBJECT (parse, "pushing buffer %p, timestamp %" - GST_TIME_FORMAT ", duration %" GST_TIME_FORMAT - ", offset %" G_GINT64_FORMAT, buf, - GST_TIME_ARGS (GST_BUFFER_TIMESTAMP (buf)), - GST_TIME_ARGS (GST_BUFFER_DURATION (buf)), GST_BUFFER_OFFSET (buf)); - - /* iterate output queue an push downstream */ - ret = gst_pad_push (parse->srcpad, buf); - send = g_slist_delete_link (send, send); - - /* clear any leftover if error */ - if (G_UNLIKELY (ret != GST_FLOW_OK)) { - while (send) { - buf = GST_BUFFER_CAST (send->data); - gst_buffer_unref (buf); - send = g_slist_delete_link (send, send); - } - } - } - - parse->priv->buffers_send = send; - - return ret; -} - -/** - * gst_base_parse_process_fragment: - * @parse: #GstBaseParse. - * - * Processes a reverse playback (forward) fragment: - * - append head of last fragment that was skipped to current fragment data - * - drain the resulting current fragment data (i.e. repeated chain) - * - add time/duration (if needed) to frames queued by chain - * - push queued data - */ -static GstFlowReturn -gst_base_parse_process_fragment (GstBaseParse * parse, gboolean push_only) -{ - GstBuffer *buf; - GstFlowReturn ret = GST_FLOW_OK; - gboolean seen_key = FALSE, seen_delta = FALSE; - - if (push_only) - goto push; - - /* restore order */ - parse->priv->buffers_pending = g_slist_reverse (parse->priv->buffers_pending); - while (parse->priv->buffers_pending) { - buf = GST_BUFFER_CAST (parse->priv->buffers_pending->data); - GST_LOG_OBJECT (parse, "adding pending buffer (size %d)", - GST_BUFFER_SIZE (buf)); - gst_adapter_push (parse->adapter, buf); - parse->priv->buffers_pending = - g_slist_delete_link (parse->priv->buffers_pending, - parse->priv->buffers_pending); - } - - /* invalidate so no fall-back timestamping is performed; - * ok if taken from subclass or upstream */ - parse->priv->next_ts = GST_CLOCK_TIME_NONE; - /* prevent it hanging around stop all the time */ - parse->segment.last_stop = GST_CLOCK_TIME_NONE; - /* mark next run */ - parse->priv->discont = TRUE; - - /* chain looks for frames and queues resulting ones (in stead of pushing) */ - /* initial skipped data is added to buffers_pending */ - gst_base_parse_drain (parse); - -push: - if (parse->priv->buffers_send) { - buf = GST_BUFFER_CAST (parse->priv->buffers_send->data); - seen_key |= !GST_BUFFER_FLAG_IS_SET (buf, GST_BUFFER_FLAG_DELTA_UNIT); - } - - /* add metadata (if needed to queued buffers */ - GST_LOG_OBJECT (parse, "last timestamp: %" GST_TIME_FORMAT, - GST_TIME_ARGS (parse->priv->last_ts)); - while (parse->priv->buffers_queued) { - buf = GST_BUFFER_CAST (parse->priv->buffers_queued->data); - - /* no touching if upstream or parsing provided time */ - if (GST_BUFFER_TIMESTAMP_IS_VALID (buf)) { - GST_LOG_OBJECT (parse, "buffer has time %" GST_TIME_FORMAT, - GST_TIME_ARGS (GST_BUFFER_TIMESTAMP (buf))); - } else if (GST_CLOCK_TIME_IS_VALID (parse->priv->last_ts) && - GST_BUFFER_DURATION_IS_VALID (buf)) { - if (G_LIKELY (GST_BUFFER_DURATION (buf) <= parse->priv->last_ts)) - parse->priv->last_ts -= GST_BUFFER_DURATION (buf); - else - parse->priv->last_ts = 0; - GST_BUFFER_TIMESTAMP (buf) = parse->priv->last_ts; - GST_LOG_OBJECT (parse, "applied time %" GST_TIME_FORMAT, - GST_TIME_ARGS (GST_BUFFER_TIMESTAMP (buf))); - } else { - /* no idea, very bad */ - GST_WARNING_OBJECT (parse, "could not determine time for buffer"); - } - - parse->priv->last_ts = GST_BUFFER_TIMESTAMP (buf); - - /* reverse order for ascending sending */ - /* send downstream at keyframe not preceded by a keyframe - * (e.g. that should identify start of collection of IDR nals) */ - if (GST_BUFFER_FLAG_IS_SET (buf, GST_BUFFER_FLAG_DELTA_UNIT)) { - if (seen_key) { - ret = gst_base_parse_send_buffers (parse); - /* if a problem, throw all to sending */ - if (ret != GST_FLOW_OK) { - parse->priv->buffers_send = - g_slist_reverse (parse->priv->buffers_queued); - parse->priv->buffers_queued = NULL; - break; - } - seen_key = FALSE; - } - } else { - seen_delta = TRUE; - } - - seen_key |= !GST_BUFFER_FLAG_IS_SET (buf, GST_BUFFER_FLAG_DELTA_UNIT); - - parse->priv->buffers_send = - g_slist_prepend (parse->priv->buffers_send, buf); - parse->priv->buffers_queued = - g_slist_delete_link (parse->priv->buffers_queued, - parse->priv->buffers_queued); - } - - /* audio may have all marked as keyframe, so arrange to send here */ - if (!seen_delta) - ret = gst_base_parse_send_buffers (parse); - - /* any trailing unused no longer usable (ideally none) */ - if (G_UNLIKELY (gst_adapter_available (parse->adapter))) { - GST_DEBUG_OBJECT (parse, "discarding %d trailing bytes", - gst_adapter_available (parse->adapter)); - gst_adapter_clear (parse->adapter); - } - - return ret; -} - -/* small helper that checks whether we have been trying to resync too long */ -static inline GstFlowReturn -gst_base_parse_check_sync (GstBaseParse * parse) -{ - if (G_UNLIKELY (parse->priv->discont && - parse->priv->offset - parse->priv->sync_offset > 2 * 1024 * 1024)) { - GST_ELEMENT_ERROR (parse, STREAM, DECODE, - ("Failed to parse stream"), (NULL)); - return GST_FLOW_ERROR; - } - - return GST_FLOW_OK; -} - - -/** - * gst_base_parse_chain: - * @pad: #GstPad. - * @buffer: #GstBuffer. - * - * Returns: #GstFlowReturn. - */ -static GstFlowReturn -gst_base_parse_chain (GstPad * pad, GstBuffer * buffer) -{ - GstBaseParseClass *bclass; - GstBaseParse *parse; - GstFlowReturn ret = GST_FLOW_OK; - GstBuffer *outbuf = NULL; - GstBuffer *tmpbuf = NULL; - guint fsize = 1; - gint skip = -1; - const guint8 *data; - guint old_min_size = 0, min_size, av; - GstClockTime timestamp; - GstBaseParseFrame _frame = { 0, }; - GstBaseParseFrame *frame; - - parse = GST_BASE_PARSE (GST_OBJECT_PARENT (pad)); - bclass = GST_BASE_PARSE_GET_CLASS (parse); - frame = &_frame; - - if (G_LIKELY (buffer)) { - GST_LOG_OBJECT (parse, "buffer size: %d, offset = %" G_GINT64_FORMAT, - GST_BUFFER_SIZE (buffer), GST_BUFFER_OFFSET (buffer)); - if (G_UNLIKELY (GST_BASE_PARSE_PASSTHROUGH (parse))) { - frame->buffer = gst_buffer_make_metadata_writable (buffer); - return gst_base_parse_push_frame (parse, frame); - } - /* upstream feeding us in reverse playback; - * gather each fragment, then process it in single run */ - if (parse->segment.rate < 0.0) { - if (G_UNLIKELY (GST_BUFFER_FLAG_IS_SET (buffer, GST_BUFFER_FLAG_DISCONT))) { - GST_DEBUG_OBJECT (parse, "buffer starts new reverse playback fragment"); - ret = gst_base_parse_process_fragment (parse, FALSE); - } - gst_adapter_push (parse->adapter, buffer); - return ret; - } - gst_adapter_push (parse->adapter, buffer); - } - - /* Parse and push as many frames as possible */ - /* Stop either when adapter is empty or we are flushing */ - while (!parse->priv->flushing) { - gboolean res; - - tmpbuf = gst_buffer_new (); - - old_min_size = 0; - /* Synchronization loop */ - for (;;) { - min_size = MAX (parse->priv->min_frame_size, fsize); - av = gst_adapter_available (parse->adapter); - - /* loop safety check */ - if (G_UNLIKELY (old_min_size >= min_size)) - goto invalid_min; - old_min_size = min_size; - - if (G_UNLIKELY (parse->priv->drain)) { - min_size = av; - GST_DEBUG_OBJECT (parse, "draining, data left: %d", min_size); - if (G_UNLIKELY (!min_size)) { - gst_buffer_unref (tmpbuf); - goto done; - } - } - - /* Collect at least min_frame_size bytes */ - if (av < min_size) { - GST_DEBUG_OBJECT (parse, "not enough data available (only %d bytes)", - av); - gst_buffer_unref (tmpbuf); - goto done; - } - - /* always pass all available data */ - data = gst_adapter_peek (parse->adapter, av); - GST_BUFFER_DATA (tmpbuf) = (guint8 *) data; - GST_BUFFER_SIZE (tmpbuf) = min_size; - GST_BUFFER_OFFSET (tmpbuf) = parse->priv->offset; - GST_BUFFER_FLAG_SET (tmpbuf, GST_MINI_OBJECT_FLAG_READONLY); - - if (parse->priv->discont) { - GST_DEBUG_OBJECT (parse, "marking DISCONT"); - GST_BUFFER_FLAG_SET (tmpbuf, GST_BUFFER_FLAG_DISCONT); - } - - skip = -1; - gst_base_parse_frame_update (parse, frame, tmpbuf); - res = bclass->check_valid_frame (parse, frame, &fsize, &skip); - gst_buffer_replace (&frame->buffer, NULL); - if (res) { - if (gst_adapter_available (parse->adapter) < fsize) { - GST_DEBUG_OBJECT (parse, - "found valid frame but not enough data available (only %d bytes)", - gst_adapter_available (parse->adapter)); - gst_buffer_unref (tmpbuf); - goto done; - } - GST_LOG_OBJECT (parse, "valid frame of size %d at pos %d", fsize, skip); - break; - } - if (skip == -1) { - /* subclass didn't touch this value. By default we skip 1 byte */ - skip = 1; - } - if (skip > 0) { - GST_LOG_OBJECT (parse, "finding sync, skipping %d bytes", skip); - if (parse->segment.rate < 0.0 && !parse->priv->buffers_queued) { - /* reverse playback, and no frames found yet, so we are skipping - * the leading part of a fragment, which may form the tail of - * fragment coming later, hopefully subclass skips efficiently ... */ - timestamp = gst_adapter_prev_timestamp (parse->adapter, NULL); - outbuf = gst_adapter_take_buffer (parse->adapter, skip); - outbuf = gst_buffer_make_metadata_writable (outbuf); - GST_BUFFER_TIMESTAMP (outbuf) = timestamp; - parse->priv->buffers_pending = - g_slist_prepend (parse->priv->buffers_pending, outbuf); - outbuf = NULL; - } else { - gst_adapter_flush (parse->adapter, skip); - } - parse->priv->offset += skip; - if (!parse->priv->discont) - parse->priv->sync_offset = parse->priv->offset; - parse->priv->discont = TRUE; - /* something changed least; nullify loop check */ - old_min_size = 0; - } - /* skip == 0 should imply subclass set min_size to need more data; - * we check this shortly */ - if ((ret = gst_base_parse_check_sync (parse)) != GST_FLOW_OK) { - gst_buffer_unref (tmpbuf); - goto done; - } - } - gst_buffer_unref (tmpbuf); - tmpbuf = NULL; - - if (skip > 0) { - /* Subclass found the sync, but still wants to skip some data */ - GST_LOG_OBJECT (parse, "skipping %d bytes", skip); - gst_adapter_flush (parse->adapter, skip); - parse->priv->offset += skip; - } - - /* Grab lock to prevent a race with FLUSH_START handler */ - GST_PAD_STREAM_LOCK (parse->srcpad); - - /* FLUSH_START event causes the "flushing" flag to be set. In this - * case we can leave the frame pushing loop */ - if (parse->priv->flushing) { - GST_PAD_STREAM_UNLOCK (parse->srcpad); - break; - } - - /* move along with upstream timestamp (if any), - * but interpolate in between */ - timestamp = gst_adapter_prev_timestamp (parse->adapter, NULL); - if (GST_CLOCK_TIME_IS_VALID (timestamp) && - (parse->priv->prev_ts != timestamp)) { - parse->priv->prev_ts = parse->priv->next_ts = timestamp; - } - - /* FIXME: Would it be more efficient to make a subbuffer instead? */ - outbuf = gst_adapter_take_buffer (parse->adapter, fsize); - outbuf = gst_buffer_make_metadata_writable (outbuf); - - /* Subclass may want to know the data offset */ - GST_BUFFER_OFFSET (outbuf) = parse->priv->offset; - parse->priv->offset += fsize; - GST_BUFFER_TIMESTAMP (outbuf) = GST_CLOCK_TIME_NONE; - GST_BUFFER_DURATION (outbuf) = GST_CLOCK_TIME_NONE; - - frame->buffer = outbuf; - ret = gst_base_parse_handle_and_push_frame (parse, bclass, frame); - GST_PAD_STREAM_UNLOCK (parse->srcpad); - - if (ret != GST_FLOW_OK) { - GST_LOG_OBJECT (parse, "push returned %d", ret); - break; - } - } - -done: - GST_LOG_OBJECT (parse, "chain leaving"); - return ret; - - /* ERRORS */ -invalid_min: - { - GST_ELEMENT_ERROR (parse, STREAM, FAILED, (NULL), - ("min_size evolution %d -> %d; breaking to avoid looping", - old_min_size, min_size)); - return GST_FLOW_ERROR; - } -} - -/* pull @size bytes at current offset, - * i.e. at least try to and possibly return a shorter buffer if near the end */ -static GstFlowReturn -gst_base_parse_pull_range (GstBaseParse * parse, guint size, - GstBuffer ** buffer) -{ - GstFlowReturn ret = GST_FLOW_OK; - - g_return_val_if_fail (buffer != NULL, GST_FLOW_ERROR); - - /* Caching here actually makes much less difference than one would expect. - * We do it mainly to avoid pulling buffers of 1 byte all the time */ - if (parse->priv->cache) { - gint64 cache_offset = GST_BUFFER_OFFSET (parse->priv->cache); - gint cache_size = GST_BUFFER_SIZE (parse->priv->cache); - - if (cache_offset <= parse->priv->offset && - (parse->priv->offset + size) <= (cache_offset + cache_size)) { - *buffer = gst_buffer_create_sub (parse->priv->cache, - parse->priv->offset - cache_offset, size); - GST_BUFFER_OFFSET (*buffer) = parse->priv->offset; - return GST_FLOW_OK; - } - /* not enough data in the cache, free cache and get a new one */ - gst_buffer_unref (parse->priv->cache); - parse->priv->cache = NULL; - } - - /* refill the cache */ - ret = - gst_pad_pull_range (parse->sinkpad, parse->priv->offset, MAX (size, - 64 * 1024), &parse->priv->cache); - if (ret != GST_FLOW_OK) { - parse->priv->cache = NULL; - return ret; - } - - if (GST_BUFFER_SIZE (parse->priv->cache) >= size) { - *buffer = gst_buffer_create_sub (parse->priv->cache, 0, size); - GST_BUFFER_OFFSET (*buffer) = parse->priv->offset; - return GST_FLOW_OK; - } - - /* Not possible to get enough data, try a last time with - * requesting exactly the size we need */ - gst_buffer_unref (parse->priv->cache); - parse->priv->cache = NULL; - - ret = gst_pad_pull_range (parse->sinkpad, parse->priv->offset, size, - &parse->priv->cache); - - if (ret != GST_FLOW_OK) { - GST_DEBUG_OBJECT (parse, "pull_range returned %d", ret); - *buffer = NULL; - return ret; - } - - if (GST_BUFFER_SIZE (parse->priv->cache) < size) { - GST_DEBUG_OBJECT (parse, "Returning short buffer at offset %" - G_GUINT64_FORMAT ": wanted %u bytes, got %u bytes", parse->priv->offset, - size, GST_BUFFER_SIZE (parse->priv->cache)); - - *buffer = parse->priv->cache; - parse->priv->cache = NULL; - - return GST_FLOW_OK; - } - - *buffer = gst_buffer_create_sub (parse->priv->cache, 0, size); - GST_BUFFER_OFFSET (*buffer) = parse->priv->offset; - - return GST_FLOW_OK; -} - -static GstFlowReturn -gst_base_parse_handle_previous_fragment (GstBaseParse * parse) -{ - gint64 offset = 0; - GstClockTime ts = 0; - GstBuffer *buffer; - GstFlowReturn ret; - - GST_DEBUG_OBJECT (parse, "fragment ended; last_ts = %" GST_TIME_FORMAT - ", last_offset = %" G_GINT64_FORMAT, GST_TIME_ARGS (parse->priv->last_ts), - parse->priv->last_offset); - - if (!parse->priv->last_offset || parse->priv->last_ts <= parse->segment.start) { - GST_DEBUG_OBJECT (parse, "past start of segment %" GST_TIME_FORMAT, - GST_TIME_ARGS (parse->segment.start)); - ret = GST_FLOW_UNEXPECTED; - goto exit; - } - - /* last fragment started at last_offset / last_ts; - * seek back 10s capped at 1MB */ - if (parse->priv->last_ts >= 10 * GST_SECOND) - ts = parse->priv->last_ts - 10 * GST_SECOND; - /* if we are exact now, we will be more so going backwards */ - if (parse->priv->exact_position) { - offset = gst_base_parse_find_offset (parse, ts, TRUE, NULL); - } else { - GstFormat dstformat = GST_FORMAT_BYTES; - - if (!gst_pad_query_convert (parse->srcpad, GST_FORMAT_TIME, ts, - &dstformat, &offset)) { - GST_DEBUG_OBJECT (parse, "conversion failed, only BYTE based"); - } - } - offset = CLAMP (offset, parse->priv->last_offset - 1024 * 1024, - parse->priv->last_offset - 1024); - offset = MAX (0, offset); - - GST_DEBUG_OBJECT (parse, "next fragment from offset %" G_GINT64_FORMAT, - offset); - parse->priv->offset = offset; - - ret = gst_base_parse_pull_range (parse, parse->priv->last_offset - offset, - &buffer); - if (ret != GST_FLOW_OK) - goto exit; - - /* offset will increase again as fragment is processed/parsed */ - parse->priv->last_offset = offset; - - gst_adapter_push (parse->adapter, buffer); - ret = gst_base_parse_process_fragment (parse, FALSE); - if (ret != GST_FLOW_OK) - goto exit; - - /* force previous fragment */ - parse->priv->offset = -1; - -exit: - return ret; -} - -/* PULL mode: - * pull and scan for next frame starting from current offset - * ajusts sync, drain and offset going along */ -static GstFlowReturn -gst_base_parse_scan_frame (GstBaseParse * parse, GstBaseParseClass * klass, - GstBaseParseFrame * frame, gboolean full) -{ - GstBuffer *buffer, *outbuf; - GstFlowReturn ret = GST_FLOW_OK; - guint fsize = 1, min_size, old_min_size = 0; - gint skip = 0; - - g_return_val_if_fail (frame != NULL, GST_FLOW_ERROR); - - GST_LOG_OBJECT (parse, "scanning for frame at offset %" G_GUINT64_FORMAT - " (%#" G_GINT64_MODIFIER "x)", parse->priv->offset, parse->priv->offset); - - while (TRUE) { - gboolean res; - - min_size = MAX (parse->priv->min_frame_size, fsize); - /* loop safety check */ - if (G_UNLIKELY (old_min_size >= min_size)) - goto invalid_min; - old_min_size = min_size; - - ret = gst_base_parse_pull_range (parse, min_size, &buffer); - if (ret != GST_FLOW_OK) - goto done; - - if (parse->priv->discont) { - GST_DEBUG_OBJECT (parse, "marking DISCONT"); - GST_BUFFER_FLAG_SET (buffer, GST_BUFFER_FLAG_DISCONT); - } - - /* if we got a short read, inform subclass we are draining leftover - * and no more is to be expected */ - if (GST_BUFFER_SIZE (buffer) < min_size) - parse->priv->drain = TRUE; - - skip = -1; - gst_base_parse_frame_update (parse, frame, buffer); - res = klass->check_valid_frame (parse, frame, &fsize, &skip); - gst_buffer_replace (&frame->buffer, NULL); - if (res) { - parse->priv->drain = FALSE; - GST_LOG_OBJECT (parse, "valid frame of size %d at pos %d", fsize, skip); - break; - } - parse->priv->drain = FALSE; - if (skip == -1) - skip = 1; - if (skip > 0) { - GST_LOG_OBJECT (parse, "finding sync, skipping %d bytes", skip); - if (full && parse->segment.rate < 0.0 && !parse->priv->buffers_queued) { - /* reverse playback, and no frames found yet, so we are skipping - * the leading part of a fragment, which may form the tail of - * fragment coming later, hopefully subclass skips efficiently ... */ - outbuf = gst_buffer_create_sub (buffer, 0, skip); - parse->priv->buffers_pending = - g_slist_prepend (parse->priv->buffers_pending, outbuf); - outbuf = NULL; - } - parse->priv->offset += skip; - if (!parse->priv->discont) - parse->priv->sync_offset = parse->priv->offset; - parse->priv->discont = TRUE; - /* something changed least; nullify loop check */ - old_min_size = 0; - } - /* skip == 0 should imply subclass set min_size to need more data; - * we check this shortly */ - GST_DEBUG_OBJECT (parse, "finding sync..."); - gst_buffer_unref (buffer); - if ((ret = gst_base_parse_check_sync (parse)) != GST_FLOW_OK) { - goto done; - } - } - - /* Does the subclass want to skip too? */ - if (skip > 0) - parse->priv->offset += skip; - else if (skip < 0) - skip = 0; - - if (fsize + skip <= GST_BUFFER_SIZE (buffer)) { - outbuf = gst_buffer_create_sub (buffer, skip, fsize); - GST_BUFFER_OFFSET (outbuf) = GST_BUFFER_OFFSET (buffer) + skip; - GST_BUFFER_TIMESTAMP (outbuf) = GST_CLOCK_TIME_NONE; - gst_buffer_unref (buffer); - } else { - gst_buffer_unref (buffer); - ret = gst_base_parse_pull_range (parse, fsize, &outbuf); - if (ret != GST_FLOW_OK) - goto done; - if (GST_BUFFER_SIZE (outbuf) < fsize) { - gst_buffer_unref (outbuf); - ret = GST_FLOW_UNEXPECTED; - } - } - - parse->priv->offset += fsize; - - frame->buffer = outbuf; - -done: - return ret; - - /* ERRORS */ -invalid_min: - { - GST_ELEMENT_ERROR (parse, STREAM, FAILED, (NULL), - ("min_size evolution %d -> %d; breaking to avoid looping", - old_min_size, min_size)); - return GST_FLOW_ERROR; - } -} - -/** - * gst_base_parse_loop: - * @pad: GstPad - * - * Loop that is used in pull mode to retrieve data from upstream. - */ -static void -gst_base_parse_loop (GstPad * pad) -{ - GstBaseParse *parse; - GstBaseParseClass *klass; - GstFlowReturn ret = GST_FLOW_OK; - GstBaseParseFrame frame = { 0, }; - - parse = GST_BASE_PARSE (gst_pad_get_parent (pad)); - klass = GST_BASE_PARSE_GET_CLASS (parse); - - /* reverse playback: - * first fragment (closest to stop time) is handled normally below, - * then we pull in fragments going backwards */ - if (parse->segment.rate < 0.0) { - /* check if we jumped back to a previous fragment, - * which is a post-first fragment */ - if (parse->priv->offset < 0) { - ret = gst_base_parse_handle_previous_fragment (parse); - goto done; - } - } - - ret = gst_base_parse_scan_frame (parse, klass, &frame, TRUE); - if (ret != GST_FLOW_OK) - goto done; - - /* This always cleans up frame, even if error occurs */ - ret = gst_base_parse_handle_and_push_frame (parse, klass, &frame); - - /* eat expected eos signalling past segment in reverse playback */ - if (parse->segment.rate < 0.0 && ret == GST_FLOW_UNEXPECTED && - parse->segment.last_stop >= parse->segment.stop) { - GST_DEBUG_OBJECT (parse, "downstream has reached end of segment"); - /* push what was accumulated during loop run */ - gst_base_parse_process_fragment (parse, TRUE); - /* force previous fragment */ - parse->priv->offset = -1; - ret = GST_FLOW_OK; - } - -done: - if (ret == GST_FLOW_UNEXPECTED) - goto eos; - else if (ret != GST_FLOW_OK) - goto pause; - - gst_object_unref (parse); - return; - - /* ERRORS */ -eos: - { - ret = GST_FLOW_UNEXPECTED; - GST_DEBUG_OBJECT (parse, "eos"); - /* fall-through */ - } -pause: - { - gboolean push_eos = FALSE; - - GST_DEBUG_OBJECT (parse, "pausing task, reason %s", - gst_flow_get_name (ret)); - gst_pad_pause_task (parse->sinkpad); - - if (ret == GST_FLOW_UNEXPECTED) { - /* handle end-of-stream/segment */ - if (parse->segment.flags & GST_SEEK_FLAG_SEGMENT) { - gint64 stop; - - if ((stop = parse->segment.stop) == -1) - stop = parse->segment.duration; - - GST_DEBUG_OBJECT (parse, "sending segment_done"); - - gst_element_post_message - (GST_ELEMENT_CAST (parse), - gst_message_new_segment_done (GST_OBJECT_CAST (parse), - GST_FORMAT_TIME, stop)); - } else { - /* If we STILL have zero frames processed, fire an error */ - if (parse->priv->framecount == 0) { - GST_ELEMENT_ERROR (parse, STREAM, WRONG_TYPE, - ("No valid frames found before end of stream"), (NULL)); - } - push_eos = TRUE; - } - } else if (ret == GST_FLOW_NOT_LINKED || ret < GST_FLOW_UNEXPECTED) { - /* for fatal errors we post an error message, wrong-state is - * not fatal because it happens due to flushes and only means - * that we should stop now. */ - GST_ELEMENT_ERROR (parse, STREAM, FAILED, (NULL), - ("streaming stopped, reason %s", gst_flow_get_name (ret))); - push_eos = TRUE; - } - if (push_eos) { - /* newsegment before eos */ - if (parse->pending_segment) { - gst_pad_push_event (parse->srcpad, parse->pending_segment); - parse->pending_segment = NULL; - } - gst_pad_push_event (parse->srcpad, gst_event_new_eos ()); - } - gst_object_unref (parse); - } -} - - -/** - * gst_base_parse_sink_activate: - * @sinkpad: #GstPad to be activated. - * - * Returns: TRUE if activation succeeded. - */ -static gboolean -gst_base_parse_sink_activate (GstPad * sinkpad) -{ - GstBaseParse *parse; - gboolean result = TRUE; - - parse = GST_BASE_PARSE (gst_pad_get_parent (sinkpad)); - - GST_DEBUG_OBJECT (parse, "sink activate"); - - if (gst_pad_check_pull_range (sinkpad)) { - GST_DEBUG_OBJECT (parse, "trying to activate in pull mode"); - result = gst_pad_activate_pull (sinkpad, TRUE); - } else { - GST_DEBUG_OBJECT (parse, "trying to activate in push mode"); - result = gst_pad_activate_push (sinkpad, TRUE); - } - - GST_DEBUG_OBJECT (parse, "sink activate return %d", result); - gst_object_unref (parse); - return result; -} - - -/** - * gst_base_parse_activate: - * @parse: #GstBaseParse. - * @active: TRUE if element will be activated, FALSE if deactivated. - * - * Returns: TRUE if the operation succeeded. - */ -static gboolean -gst_base_parse_activate (GstBaseParse * parse, gboolean active) -{ - GstBaseParseClass *klass; - gboolean result = FALSE; - - GST_DEBUG_OBJECT (parse, "activate %d", active); - - klass = GST_BASE_PARSE_GET_CLASS (parse); - - if (active) { - if (parse->priv->pad_mode == GST_ACTIVATE_NONE && klass->start) - result = klass->start (parse); - } else { - /* We must make sure streaming has finished before resetting things - * and calling the ::stop vfunc */ - GST_PAD_STREAM_LOCK (parse->sinkpad); - GST_PAD_STREAM_UNLOCK (parse->sinkpad); - - if (parse->priv->pad_mode != GST_ACTIVATE_NONE && klass->stop) - result = klass->stop (parse); - - parse->priv->pad_mode = GST_ACTIVATE_NONE; - } - GST_DEBUG_OBJECT (parse, "activate return: %d", result); - return result; -} - - -/** - * gst_base_parse_sink_activate_push: - * @pad: #GstPad to be (de)activated. - * @active: TRUE when activating, FALSE when deactivating. - * - * Returns: TRUE if (de)activation succeeded. - */ -static gboolean -gst_base_parse_sink_activate_push (GstPad * pad, gboolean active) -{ - gboolean result = TRUE; - GstBaseParse *parse; - - parse = GST_BASE_PARSE (gst_pad_get_parent (pad)); - - GST_DEBUG_OBJECT (parse, "sink activate push %d", active); - - result = gst_base_parse_activate (parse, active); - - if (result) - parse->priv->pad_mode = active ? GST_ACTIVATE_PUSH : GST_ACTIVATE_NONE; - - GST_DEBUG_OBJECT (parse, "sink activate push return: %d", result); - - gst_object_unref (parse); - return result; -} - - -/** - * gst_base_parse_sink_activate_pull: - * @sinkpad: #GstPad to be (de)activated. - * @active: TRUE when activating, FALSE when deactivating. - * - * Returns: TRUE if (de)activation succeeded. - */ -static gboolean -gst_base_parse_sink_activate_pull (GstPad * sinkpad, gboolean active) -{ - gboolean result = FALSE; - GstBaseParse *parse; - - parse = GST_BASE_PARSE (gst_pad_get_parent (sinkpad)); - - GST_DEBUG_OBJECT (parse, "activate pull %d", active); - - result = gst_base_parse_activate (parse, active); - - if (result) { - if (active) { - parse->pending_segment = gst_event_new_new_segment (FALSE, - parse->segment.rate, parse->segment.format, - parse->segment.start, parse->segment.stop, parse->segment.last_stop); - result &= gst_pad_start_task (sinkpad, - (GstTaskFunction) gst_base_parse_loop, sinkpad); - } else { - result &= gst_pad_stop_task (sinkpad); - } - } - - if (result) - parse->priv->pad_mode = active ? GST_ACTIVATE_PULL : GST_ACTIVATE_NONE; - - GST_DEBUG_OBJECT (parse, "sink activate pull return: %d", result); - - gst_object_unref (parse); - return result; -} - - -/** - * gst_base_parse_set_duration: - * @parse: #GstBaseParse. - * @fmt: #GstFormat. - * @duration: duration value. - * - * Sets the duration of the currently playing media. Subclass can use this - * when it is able to determine duration and/or notices a change in the media - * duration. Alternatively, if @interval is non-zero (default), then stream - * duration is determined based on estimated bitrate, and updated every @interval - * frames. */ -void -gst_base_parse_set_duration (GstBaseParse * parse, - GstFormat fmt, gint64 duration, gint interval) -{ - g_return_if_fail (parse != NULL); - - if (parse->priv->upstream_has_duration) { - GST_DEBUG_OBJECT (parse, "using upstream duration; discarding update"); - goto exit; - } - - if (duration != parse->priv->duration) { - GstMessage *m; - - m = gst_message_new_duration (GST_OBJECT (parse), fmt, duration); - gst_element_post_message (GST_ELEMENT (parse), m); - - /* TODO: what about duration tag? */ - } - parse->priv->duration = duration; - parse->priv->duration_fmt = fmt; - GST_DEBUG_OBJECT (parse, "set duration: %" G_GINT64_FORMAT, duration); - if (fmt == GST_FORMAT_TIME && GST_CLOCK_TIME_IS_VALID (duration)) { - if (interval != 0) { - GST_DEBUG_OBJECT (parse, "valid duration provided, disabling estimate"); - interval = 0; - } - } - GST_DEBUG_OBJECT (parse, "set update interval: %d", interval); - parse->priv->update_interval = interval; -exit: - return; -} - -/** - * gst_base_parse_set_seek: - * @parse: #GstBaseParse. - * @seek: #GstBaseParseSeekable. - * @abitrate: average bitrate. - * - * Sets whether and how the media is seekable (in time). - * Also optionally provides average bitrate detected in media (if non-zero), - * e.g. based on metadata, as it will be posted to the application. - * - * By default, announced average bitrate is estimated, and seekability is assumed - * possible based on estimated bitrate. - */ -void -gst_base_parse_set_seek (GstBaseParse * parse, - GstBaseParseSeekable seek, guint bitrate) -{ - parse->priv->seekable = seek; - parse->priv->bitrate = bitrate; - GST_DEBUG_OBJECT (parse, "seek %d, bitrate %d", seek, bitrate); -} - - -/** - * gst_base_parse_set_min_frame_size: - * @parse: #GstBaseParse. - * @min_size: Minimum size of the data that this base class should give to - * subclass. - * - * Subclass can use this function to tell the base class that it needs to - * give at least #min_size buffers. - */ -void -gst_base_parse_set_min_frame_size (GstBaseParse * parse, guint min_size) -{ - g_return_if_fail (parse != NULL); - - parse->priv->min_frame_size = min_size; - GST_LOG_OBJECT (parse, "set frame_min_size: %d", min_size); -} - -/** - * gst_base_parse_set_format: - * @parse: the #GstBaseParseFormat to set or unset - * @flags: format flag to enable or disable - * @on: whether or not to enable - * - * Set flags describing characteristics of parsed format. - */ -void -gst_base_parse_set_format (GstBaseParse * parse, GstBaseParseFormat flag, - gboolean on) -{ - g_return_if_fail (parse != NULL); - - GST_LOG_OBJECT (parse, "set flag %d to %d", flag, on); - if (on) - parse->priv->format |= flag; - else - parse->priv->format &= ~flag; -} - -/** - * gst_base_parse_set_frame_props: - * @parse: the #GstBaseParse to set - * @fps_num: frames per second (numerator). - * @fps_den: frames per second (denominator). - * @lead_in: frames needed before a segment for subsequent decode - * @lead_out: frames needed after a segment - * - * If frames per second is configured, parser can take care of buffer duration - * and timestamping. When performing segment clipping, or seeking to a specific - * location, a corresponding decoder might need an initial @lead_in and a - * following @lead_out number of frames to ensure the desired segment is - * entirely filled upon decoding. - */ -void -gst_base_parse_set_frame_props (GstBaseParse * parse, guint fps_num, - guint fps_den, guint lead_in, guint lead_out) -{ - g_return_if_fail (parse != NULL); - - parse->priv->fps_num = fps_num; - parse->priv->fps_den = fps_den; - if (!fps_num || !fps_den) { - GST_DEBUG_OBJECT (parse, "invalid fps (%d/%d), ignoring parameters", - fps_num, fps_den); - fps_num = fps_den = 0; - parse->priv->frame_duration = GST_CLOCK_TIME_NONE; - parse->priv->lead_in = parse->priv->lead_out = 0; - parse->priv->lead_in_ts = parse->priv->lead_out_ts = 0; - } else { - parse->priv->frame_duration = - gst_util_uint64_scale (GST_SECOND, fps_den, fps_num); - parse->priv->lead_in = lead_in; - parse->priv->lead_out = lead_out; - parse->priv->lead_in_ts = - gst_util_uint64_scale (GST_SECOND, fps_den * lead_in, fps_num); - parse->priv->lead_out_ts = - gst_util_uint64_scale (GST_SECOND, fps_den * lead_out, fps_num); - /* aim for about 1.5s to estimate duration */ - if (parse->priv->update_interval < 0) { - parse->priv->update_interval = fps_num * 3 / (fps_den * 2); - GST_LOG_OBJECT (parse, "estimated update interval to %d frames", - parse->priv->update_interval); - } - } - GST_LOG_OBJECT (parse, "set fps: %d/%d => duration: %" G_GINT64_FORMAT " ms", - fps_num, fps_den, parse->priv->frame_duration / GST_MSECOND); - GST_LOG_OBJECT (parse, "set lead in: %d frames = %" G_GUINT64_FORMAT " ms, " - "lead out: %d frames = %" G_GUINT64_FORMAT " ms", - lead_in, parse->priv->lead_in_ts / GST_MSECOND, - lead_out, parse->priv->lead_out_ts / GST_MSECOND); -} - -static gboolean -gst_base_parse_get_duration (GstBaseParse * parse, GstFormat format, - GstClockTime * duration) -{ - gboolean res = FALSE; - - g_return_val_if_fail (duration != NULL, FALSE); - - *duration = GST_CLOCK_TIME_NONE; - if (parse->priv->duration != -1 && format == parse->priv->duration_fmt) { - GST_LOG_OBJECT (parse, "using provided duration"); - *duration = parse->priv->duration; - res = TRUE; - } else if (parse->priv->duration != -1) { - GST_LOG_OBJECT (parse, "converting provided duration"); - res = gst_base_parse_convert (parse, parse->priv->duration_fmt, - parse->priv->duration, format, (gint64 *) duration); - } else if (format == GST_FORMAT_TIME && parse->priv->estimated_duration != -1) { - GST_LOG_OBJECT (parse, "using estimated duration"); - *duration = parse->priv->estimated_duration; - res = TRUE; - } - - GST_LOG_OBJECT (parse, "res: %d, duration %" GST_TIME_FORMAT, res, - GST_TIME_ARGS (*duration)); - return res; -} - -/** - * gst_base_parse_get_querytypes: - * @pad: GstPad - * - * Returns: A table of #GstQueryType items describing supported query types. - */ -static const GstQueryType * -gst_base_parse_get_querytypes (GstPad * pad) -{ - static const GstQueryType list[] = { - GST_QUERY_POSITION, - GST_QUERY_DURATION, - GST_QUERY_FORMATS, - GST_QUERY_SEEKING, - GST_QUERY_CONVERT, - 0 - }; - - return list; -} - - -/** - * gst_base_parse_query: - * @pad: #GstPad. - * @query: #GstQuery. - * - * Returns: TRUE on success. - */ -static gboolean -gst_base_parse_query (GstPad * pad, GstQuery * query) -{ - GstBaseParse *parse; - gboolean res = FALSE; - - parse = GST_BASE_PARSE (GST_PAD_PARENT (pad)); - - GST_LOG_OBJECT (parse, "handling query: %" GST_PTR_FORMAT, query); - - switch (GST_QUERY_TYPE (query)) { - case GST_QUERY_POSITION: - { - gint64 dest_value; - GstFormat format; - - GST_DEBUG_OBJECT (parse, "position query"); - gst_query_parse_position (query, &format, NULL); - - GST_OBJECT_LOCK (parse); - if (format == GST_FORMAT_BYTES) { - dest_value = parse->priv->offset; - res = TRUE; - } else if (format == parse->segment.format && - GST_CLOCK_TIME_IS_VALID (parse->segment.last_stop)) { - dest_value = parse->segment.last_stop; - res = TRUE; - } - GST_OBJECT_UNLOCK (parse); - - if (res) - gst_query_set_position (query, format, dest_value); - else { - res = gst_pad_query_default (pad, query); - if (!res) { - /* no precise result, upstream no idea either, then best estimate */ - /* priv->offset is updated in both PUSH/PULL modes */ - res = gst_base_parse_convert (parse, - GST_FORMAT_BYTES, parse->priv->offset, format, &dest_value); - } - } - break; - } - case GST_QUERY_DURATION: - { - GstFormat format; - GstClockTime duration; - - GST_DEBUG_OBJECT (parse, "duration query"); - gst_query_parse_duration (query, &format, NULL); - - /* consult upstream */ - res = gst_pad_query_default (pad, query); - - /* otherwise best estimate from us */ - if (!res) { - res = gst_base_parse_get_duration (parse, format, &duration); - if (res) - gst_query_set_duration (query, format, duration); - } - break; - } - case GST_QUERY_SEEKING: - { - GstFormat fmt; - GstClockTime duration = GST_CLOCK_TIME_NONE; - gboolean seekable = FALSE; - - GST_DEBUG_OBJECT (parse, "seeking query"); - gst_query_parse_seeking (query, &fmt, NULL, NULL, NULL); - - /* consult upstream */ - res = gst_pad_query_default (pad, query); - - /* we may be able to help if in TIME */ - if (fmt == GST_FORMAT_TIME && - parse->priv->seekable > GST_BASE_PARSE_SEEK_NONE) { - gst_query_parse_seeking (query, &fmt, &seekable, NULL, NULL); - /* already OK if upstream takes care */ - GST_LOG_OBJECT (parse, "upstream handled %d, seekable %d", - res, seekable); - if (!(res && seekable)) { - if (!gst_base_parse_get_duration (parse, GST_FORMAT_TIME, &duration) - || duration == -1) { - /* seekable if we still have a chance to get duration later on */ - seekable = - parse->priv->upstream_seekable && parse->priv->update_interval; - } else { - seekable = parse->priv->upstream_seekable; - GST_LOG_OBJECT (parse, "already determine upstream seekabled: %d", - seekable); - } - gst_query_set_seeking (query, GST_FORMAT_TIME, seekable, 0, duration); - res = TRUE; - } - } - break; - } - case GST_QUERY_FORMATS: - gst_query_set_formatsv (query, 3, fmtlist); - res = TRUE; - break; - case GST_QUERY_CONVERT: - { - GstFormat src_format, dest_format; - gint64 src_value, dest_value; - - gst_query_parse_convert (query, &src_format, &src_value, - &dest_format, &dest_value); - - res = gst_base_parse_convert (parse, src_format, src_value, - dest_format, &dest_value); - if (res) { - gst_query_set_convert (query, src_format, src_value, - dest_format, dest_value); - } - break; - } - default: - res = gst_pad_query_default (pad, query); - break; - } - return res; -} - -/* scans for a cluster start from @pos, - * return GST_FLOW_OK and frame position/time in @pos/@time if found */ -static GstFlowReturn -gst_base_parse_find_frame (GstBaseParse * parse, gint64 * pos, - GstClockTime * time, GstClockTime * duration) -{ - GstBaseParseClass *klass; - gint64 orig_offset; - gboolean orig_drain, orig_discont; - GstFlowReturn ret = GST_FLOW_OK; - GstBuffer *buf = NULL; - GstBaseParseFrame frame = { 0, }; - - g_return_val_if_fail (GST_FLOW_ERROR, pos != NULL); - g_return_val_if_fail (GST_FLOW_ERROR, time != NULL); - g_return_val_if_fail (GST_FLOW_ERROR, duration != NULL); - - klass = GST_BASE_PARSE_GET_CLASS (parse); - - *time = GST_CLOCK_TIME_NONE; - *duration = GST_CLOCK_TIME_NONE; - - /* save state */ - orig_offset = parse->priv->offset; - orig_discont = parse->priv->discont; - orig_drain = parse->priv->drain; - - GST_DEBUG_OBJECT (parse, "scanning for frame starting at %" G_GINT64_FORMAT - " (%#" G_GINT64_MODIFIER "x)", *pos, *pos); - - /* jump elsewhere and locate next frame */ - parse->priv->offset = *pos; - ret = gst_base_parse_scan_frame (parse, klass, &frame, FALSE); - if (ret != GST_FLOW_OK) - goto done; - - buf = frame.buffer; - GST_LOG_OBJECT (parse, - "peek parsing frame at offset %" G_GUINT64_FORMAT - " (%#" G_GINT64_MODIFIER "x) of size %d", - GST_BUFFER_OFFSET (buf), GST_BUFFER_OFFSET (buf), GST_BUFFER_SIZE (buf)); - - /* get offset first, subclass parsing might dump other stuff in there */ - *pos = GST_BUFFER_OFFSET (buf); - ret = klass->parse_frame (parse, &frame); - buf = frame.buffer; - - /* but it should provide proper time */ - *time = GST_BUFFER_TIMESTAMP (buf); - *duration = GST_BUFFER_DURATION (buf); - gst_base_parse_frame_clear (parse, &frame); - - GST_LOG_OBJECT (parse, - "frame with time %" GST_TIME_FORMAT " at offset %" G_GINT64_FORMAT, - GST_TIME_ARGS (*time), *pos); - -done: - /* restore state */ - parse->priv->offset = orig_offset; - parse->priv->discont = orig_discont; - parse->priv->drain = orig_drain; - - return ret; -} - -/* bisect and scan through file for frame starting before @time, - * returns OK and @time/@offset if found, NONE and/or error otherwise - * If @time == G_MAXINT64, scan for duration ( == last frame) */ -static GstFlowReturn -gst_base_parse_locate_time (GstBaseParse * parse, GstClockTime * _time, - gint64 * _offset) -{ - GstFlowReturn ret = GST_FLOW_OK; - gint64 lpos, hpos, newpos; - GstClockTime time, ltime, htime, newtime, dur; - gboolean cont = TRUE; - const GstClockTime tolerance = TARGET_DIFFERENCE; - const guint chunk = 4 * 1024; - - g_return_val_if_fail (_time != NULL, GST_FLOW_ERROR); - g_return_val_if_fail (_offset != NULL, GST_FLOW_ERROR); - - /* TODO also make keyframe aware if useful some day */ - - time = *_time; - - /* basic cases */ - if (time == 0) { - *_offset = 0; - return GST_FLOW_OK; - } - - if (time == -1) { - *_offset = -1; - return GST_FLOW_OK; - } - - /* do not know at first */ - *_offset = -1; - *_time = GST_CLOCK_TIME_NONE; - - /* need initial positions; start and end */ - lpos = parse->priv->first_frame_offset; - ltime = parse->priv->first_frame_ts; - htime = parse->priv->duration; - hpos = parse->priv->upstream_size; - - /* check preconditions are satisfied; - * start and end are needed, except for special case where we scan for - * last frame to determine duration */ - if (parse->priv->pad_mode != GST_ACTIVATE_PULL || !hpos || - !GST_CLOCK_TIME_IS_VALID (ltime) || - (!GST_CLOCK_TIME_IS_VALID (htime) && time != G_MAXINT64)) { - return GST_FLOW_OK; - } - - /* shortcut cases */ - if (time < ltime) { - goto exit; - } else if (time < ltime + tolerance) { - *_offset = lpos; - *_time = ltime; - goto exit; - } else if (time >= htime) { - *_offset = hpos; - *_time = htime; - goto exit; - } - - while (htime > ltime && cont) { - GST_LOG_OBJECT (parse, - "lpos: %" G_GUINT64_FORMAT ", ltime: %" GST_TIME_FORMAT, lpos, - GST_TIME_ARGS (ltime)); - GST_LOG_OBJECT (parse, - "hpos: %" G_GUINT64_FORMAT ", htime: %" GST_TIME_FORMAT, hpos, - GST_TIME_ARGS (htime)); - if (G_UNLIKELY (time == G_MAXINT64)) { - newpos = hpos; - } else if (G_LIKELY (hpos > lpos)) { - newpos = - gst_util_uint64_scale (hpos - lpos, time - ltime, htime - ltime) + - lpos - chunk; - } else { - /* should mean lpos == hpos, since lpos <= hpos is invariant */ - newpos = lpos; - /* we check this case once, but not forever, so break loop */ - cont = FALSE; - } - - /* ensure */ - newpos = CLAMP (newpos, lpos, hpos); - GST_LOG_OBJECT (parse, - "estimated _offset for %" GST_TIME_FORMAT ": %" G_GINT64_FORMAT, - GST_TIME_ARGS (time), newpos); - - ret = gst_base_parse_find_frame (parse, &newpos, &newtime, &dur); - if (ret == GST_FLOW_UNEXPECTED) { - /* heuristic HACK */ - hpos = MAX (lpos, hpos - chunk); - continue; - } else if (ret != GST_FLOW_OK) { - goto exit; - } - - if (newtime == -1 || newpos == -1) { - GST_DEBUG_OBJECT (parse, "subclass did not provide metadata; aborting"); - break; - } - - if (G_UNLIKELY (time == G_MAXINT64)) { - *_offset = newpos; - *_time = newtime; - if (GST_CLOCK_TIME_IS_VALID (dur)) - *_time += dur; - break; - } else if (newtime > time) { - /* overshoot */ - hpos = (newpos >= hpos) ? MAX (lpos, hpos - chunk) : MAX (lpos, newpos); - htime = newtime; - } else if (newtime + tolerance > time) { - /* close enough undershoot */ - *_offset = newpos; - *_time = newtime; - break; - } else if (newtime < ltime) { - /* so a position beyond lpos resulted in earlier time than ltime ... */ - GST_DEBUG_OBJECT (parse, "non-ascending time; aborting"); - break; - } else { - /* undershoot too far */ - newpos += newpos == lpos ? chunk : 0; - lpos = CLAMP (newpos, lpos, hpos); - ltime = newtime; - } - } - -exit: - GST_LOG_OBJECT (parse, "return offset %" G_GINT64_FORMAT ", time %" - GST_TIME_FORMAT, *_offset, GST_TIME_ARGS (*_time)); - return ret; -} - -static gint64 -gst_base_parse_find_offset (GstBaseParse * parse, GstClockTime time, - gboolean before, GstClockTime * _ts) -{ - gint64 bytes = 0, ts = 0; - GstIndexEntry *entry = NULL; - - if (time == GST_CLOCK_TIME_NONE) { - ts = time; - bytes = -1; - goto exit; - } - - GST_OBJECT_LOCK (parse); - if (parse->priv->index) { - /* Let's check if we have an index entry for that time */ - entry = gst_index_get_assoc_entry (parse->priv->index, - parse->priv->index_id, - before ? GST_INDEX_LOOKUP_BEFORE : GST_INDEX_LOOKUP_AFTER, - GST_ASSOCIATION_FLAG_KEY_UNIT, GST_FORMAT_TIME, time); - } - - if (entry) { - gst_index_entry_assoc_map (entry, GST_FORMAT_BYTES, &bytes); - gst_index_entry_assoc_map (entry, GST_FORMAT_TIME, &ts); - - GST_DEBUG_OBJECT (parse, "found index entry for %" GST_TIME_FORMAT - " at %" GST_TIME_FORMAT ", offset %" G_GINT64_FORMAT, - GST_TIME_ARGS (time), GST_TIME_ARGS (ts), bytes); - } else { - GST_DEBUG_OBJECT (parse, "no index entry found for %" GST_TIME_FORMAT, - GST_TIME_ARGS (time)); - if (!before) { - bytes = -1; - ts = GST_CLOCK_TIME_NONE; - } - } - GST_OBJECT_UNLOCK (parse); - -exit: - if (_ts) - *_ts = ts; - - return bytes; -} - - -/** - * gst_base_parse_handle_seek: - * @parse: #GstBaseParse. - * @event: #GstEvent. - * - * Returns: TRUE if seek succeeded. - */ -static gboolean -gst_base_parse_handle_seek (GstBaseParse * parse, GstEvent * event) -{ - gdouble rate; - GstFormat format; - GstSeekFlags flags; - GstSeekType cur_type = GST_SEEK_TYPE_NONE, stop_type; - gboolean flush, update, res = TRUE, accurate; - gint64 cur, stop, seekpos, seekstop; - GstSegment seeksegment = { 0, }; - GstFormat dstformat; - GstClockTime start_ts; - - gst_event_parse_seek (event, &rate, &format, &flags, - &cur_type, &cur, &stop_type, &stop); - - GST_DEBUG_OBJECT (parse, "seek to format %s, rate %f, " - "start type %d at %" GST_TIME_FORMAT ", end type %d at %" - GST_TIME_FORMAT, gst_format_get_name (format), rate, - cur_type, GST_TIME_ARGS (cur), stop_type, GST_TIME_ARGS (stop)); - - /* no negative rates in push mode */ - if (rate < 0.0 && parse->priv->pad_mode == GST_ACTIVATE_PUSH) - goto negative_rate; - - if (cur_type != GST_SEEK_TYPE_SET || - (stop_type != GST_SEEK_TYPE_SET && stop_type != GST_SEEK_TYPE_NONE)) - goto wrong_type; - - /* For any format other than TIME, see if upstream handles - * it directly or fail. For TIME, try upstream, but do it ourselves if - * it fails upstream */ - if (format != GST_FORMAT_TIME) { - /* default action delegates to upstream */ - res = FALSE; - goto done; - } else { - gst_event_ref (event); - if ((res = gst_pad_push_event (parse->sinkpad, event))) { - goto done; - } - } - - /* get flush flag */ - flush = flags & GST_SEEK_FLAG_FLUSH; - - /* copy segment, we need this because we still need the old - * segment when we close the current segment. */ - memcpy (&seeksegment, &parse->segment, sizeof (GstSegment)); - - GST_DEBUG_OBJECT (parse, "configuring seek"); - gst_segment_set_seek (&seeksegment, rate, format, flags, - cur_type, cur, stop_type, stop, &update); - - /* accurate seeking implies seek tables are used to obtain position, - * and the requested segment is maintained exactly, not adjusted any way */ - accurate = flags & GST_SEEK_FLAG_ACCURATE; - - /* maybe we can be accurate for (almost) free */ - gst_base_parse_find_offset (parse, seeksegment.last_stop, TRUE, &start_ts); - if (seeksegment.last_stop <= start_ts + TARGET_DIFFERENCE) { - GST_DEBUG_OBJECT (parse, "accurate seek possible"); - accurate = TRUE; - } - if (accurate) { - GstClockTime startpos = seeksegment.last_stop; - - /* accurate requested, so ... seek a bit before target */ - if (startpos < parse->priv->lead_in_ts) - startpos = 0; - else - startpos -= parse->priv->lead_in_ts; - seekpos = gst_base_parse_find_offset (parse, startpos, TRUE, &start_ts); - seekstop = gst_base_parse_find_offset (parse, seeksegment.stop, FALSE, - NULL); - } else { - start_ts = seeksegment.last_stop; - dstformat = GST_FORMAT_BYTES; - if (!gst_pad_query_convert (parse->srcpad, format, seeksegment.last_stop, - &dstformat, &seekpos)) - goto convert_failed; - if (!gst_pad_query_convert (parse->srcpad, format, seeksegment.stop, - &dstformat, &seekstop)) - goto convert_failed; - } - - GST_DEBUG_OBJECT (parse, - "seek position %" G_GINT64_FORMAT " in bytes: %" G_GINT64_FORMAT, - start_ts, seekpos); - GST_DEBUG_OBJECT (parse, - "seek stop %" G_GINT64_FORMAT " in bytes: %" G_GINT64_FORMAT, - seeksegment.stop, seekstop); - - if (parse->priv->pad_mode == GST_ACTIVATE_PULL) { - gint64 last_stop; - - GST_DEBUG_OBJECT (parse, "seek in PULL mode"); - - if (flush) { - if (parse->srcpad) { - GST_DEBUG_OBJECT (parse, "sending flush start"); - gst_pad_push_event (parse->srcpad, gst_event_new_flush_start ()); - /* unlock upstream pull_range */ - gst_pad_push_event (parse->sinkpad, gst_event_new_flush_start ()); - } - } else { - gst_pad_pause_task (parse->sinkpad); - } - - /* we should now be able to grab the streaming thread because we stopped it - * with the above flush/pause code */ - GST_PAD_STREAM_LOCK (parse->sinkpad); - - /* save current position */ - last_stop = parse->segment.last_stop; - GST_DEBUG_OBJECT (parse, "stopped streaming at %" G_GINT64_FORMAT, - last_stop); - - /* now commit to new position */ - - /* prepare for streaming again */ - if (flush) { - GST_DEBUG_OBJECT (parse, "sending flush stop"); - gst_pad_push_event (parse->srcpad, gst_event_new_flush_stop ()); - gst_pad_push_event (parse->sinkpad, gst_event_new_flush_stop ()); - gst_base_parse_clear_queues (parse); - } else { - if (parse->close_segment) - gst_event_unref (parse->close_segment); - - parse->close_segment = gst_event_new_new_segment (TRUE, - parse->segment.rate, parse->segment.format, - parse->segment.accum, parse->segment.last_stop, parse->segment.accum); - - /* keep track of our last_stop */ - seeksegment.accum = parse->segment.last_stop; - - GST_DEBUG_OBJECT (parse, "Created close seg format %d, " - "start = %" GST_TIME_FORMAT ", stop = %" GST_TIME_FORMAT - ", pos = %" GST_TIME_FORMAT, format, - GST_TIME_ARGS (parse->segment.accum), - GST_TIME_ARGS (parse->segment.last_stop), - GST_TIME_ARGS (parse->segment.accum)); - } - - memcpy (&parse->segment, &seeksegment, sizeof (GstSegment)); - - /* store the newsegment event so it can be sent from the streaming thread. */ - if (parse->pending_segment) - gst_event_unref (parse->pending_segment); - - /* This will be sent later in _loop() */ - parse->pending_segment = - gst_event_new_new_segment (FALSE, parse->segment.rate, - parse->segment.format, parse->segment.start, parse->segment.stop, - parse->segment.start); - - GST_DEBUG_OBJECT (parse, "Created newseg format %d, " - "start = %" GST_TIME_FORMAT ", stop = %" GST_TIME_FORMAT - ", pos = %" GST_TIME_FORMAT, format, - GST_TIME_ARGS (parse->segment.start), - GST_TIME_ARGS (parse->segment.stop), - GST_TIME_ARGS (parse->segment.start)); - - /* one last chance in pull mode to stay accurate; - * maybe scan and subclass can find where to go */ - if (!accurate) { - gint64 scanpos; - GstClockTime ts = seeksegment.last_stop; - - gst_base_parse_locate_time (parse, &ts, &scanpos); - if (scanpos >= 0) { - accurate = TRUE; - seekpos = scanpos; - /* running collected index now consists of several intervals, - * so optimized check no longer possible */ - parse->priv->index_last_valid = FALSE; - parse->priv->index_last_offset = 0; - parse->priv->index_last_ts = 0; - } - } - - /* mark discont if we are going to stream from another position. */ - if (seekpos != parse->priv->offset) { - GST_DEBUG_OBJECT (parse, - "mark DISCONT, we did a seek to another position"); - parse->priv->offset = seekpos; - parse->priv->last_offset = seekpos; - parse->priv->seen_keyframe = FALSE; - parse->priv->discont = TRUE; - parse->priv->next_ts = start_ts; - parse->priv->last_ts = GST_CLOCK_TIME_NONE; - parse->priv->sync_offset = seekpos; - parse->priv->exact_position = accurate; - } - - /* Start streaming thread if paused */ - gst_pad_start_task (parse->sinkpad, - (GstTaskFunction) gst_base_parse_loop, parse->sinkpad); - - GST_PAD_STREAM_UNLOCK (parse->sinkpad); - - /* handled seek */ - res = TRUE; - } else { - GstEvent *new_event; - GstBaseParseSeek *seek; - - /* The only thing we need to do in PUSH-mode is to send the - seek event (in bytes) to upstream. Segment / flush handling happens - in corresponding src event handlers */ - GST_DEBUG_OBJECT (parse, "seek in PUSH mode"); - if (seekstop >= 0 && seekpos <= seekpos) - seekstop = seekpos; - new_event = gst_event_new_seek (rate, GST_FORMAT_BYTES, flush, - GST_SEEK_TYPE_SET, seekpos, stop_type, seekstop); - - /* store segment info so its precise details can be reconstructed when - * receiving newsegment; - * this matters for all details when accurate seeking, - * is most useful to preserve NONE stop time otherwise */ - seek = g_new0 (GstBaseParseSeek, 1); - seek->segment = seeksegment; - seek->accurate = accurate; - seek->offset = seekpos; - seek->start_ts = start_ts; - GST_OBJECT_LOCK (parse); - /* less optimal, but preserves order */ - parse->priv->pending_seeks = - g_slist_append (parse->priv->pending_seeks, seek); - GST_OBJECT_UNLOCK (parse); - - res = gst_pad_push_event (parse->sinkpad, new_event); - - if (!res) { - GST_OBJECT_LOCK (parse); - parse->priv->pending_seeks = - g_slist_remove (parse->priv->pending_seeks, seek); - GST_OBJECT_UNLOCK (parse); - g_free (seek); - } - } - -done: - /* handled event is ours to free */ - if (res) - gst_event_unref (event); - return res; - - /* ERRORS */ -negative_rate: - { - GST_DEBUG_OBJECT (parse, "negative playback rates delegated upstream."); - res = FALSE; - goto done; - } -wrong_type: - { - GST_DEBUG_OBJECT (parse, "unsupported seek type."); - res = FALSE; - goto done; - } -convert_failed: - { - GST_DEBUG_OBJECT (parse, "conversion TIME to BYTES failed."); - res = FALSE; - goto done; - } -} - -/** - * gst_base_parse_handle_tag: - * @parse: #GstBaseParse. - * @event: #GstEvent. - * - * Checks if bitrates are available from upstream tags so that we don't - * override them later - */ -static void -gst_base_parse_handle_tag (GstBaseParse * parse, GstEvent * event) -{ - GstTagList *taglist = NULL; - guint tmp; - - gst_event_parse_tag (event, &taglist); - - if (gst_tag_list_get_uint (taglist, GST_TAG_MINIMUM_BITRATE, &tmp)) { - GST_DEBUG_OBJECT (parse, "upstream min bitrate %d", tmp); - parse->priv->post_min_bitrate = FALSE; - } - if (gst_tag_list_get_uint (taglist, GST_TAG_BITRATE, &tmp)) { - GST_DEBUG_OBJECT (parse, "upstream avg bitrate %d", tmp); - parse->priv->post_avg_bitrate = FALSE; - } - if (gst_tag_list_get_uint (taglist, GST_TAG_MAXIMUM_BITRATE, &tmp)) { - GST_DEBUG_OBJECT (parse, "upstream max bitrate %d", tmp); - parse->priv->post_max_bitrate = FALSE; - } -} - -/** - * gst_base_parse_sink_setcaps: - * @pad: #GstPad. - * @caps: #GstCaps. - * - * Returns: TRUE if caps were accepted. - */ -static gboolean -gst_base_parse_sink_setcaps (GstPad * pad, GstCaps * caps) -{ - GstBaseParse *parse; - GstBaseParseClass *klass; - gboolean res = TRUE; - - parse = GST_BASE_PARSE (GST_PAD_PARENT (pad)); - klass = GST_BASE_PARSE_GET_CLASS (parse); - - GST_DEBUG_OBJECT (parse, "caps: %" GST_PTR_FORMAT, caps); - - if (klass->set_sink_caps) - res = klass->set_sink_caps (parse, caps); - - return res; -} - -static void -gst_base_parse_set_index (GstElement * element, GstIndex * index) -{ - GstBaseParse *parse = GST_BASE_PARSE (element); - - GST_OBJECT_LOCK (parse); - if (parse->priv->index) - gst_object_unref (parse->priv->index); - if (index) { - parse->priv->index = gst_object_ref (index); - gst_index_get_writer_id (index, GST_OBJECT (element), - &parse->priv->index_id); - parse->priv->own_index = FALSE; - } else - parse->priv->index = NULL; - GST_OBJECT_UNLOCK (parse); -} - -static GstIndex * -gst_base_parse_get_index (GstElement * element) -{ - GstBaseParse *parse = GST_BASE_PARSE (element); - GstIndex *result = NULL; - - GST_OBJECT_LOCK (parse); - if (parse->priv->index) - result = gst_object_ref (parse->priv->index); - GST_OBJECT_UNLOCK (parse); - - return result; -} - -static GstStateChangeReturn -gst_base_parse_change_state (GstElement * element, GstStateChange transition) -{ - GstBaseParse *parse; - GstStateChangeReturn result; - - parse = GST_BASE_PARSE (element); - - switch (transition) { - case GST_STATE_CHANGE_READY_TO_PAUSED: - /* If this is our own index destroy it as the - * old entries might be wrong for the new stream */ - if (parse->priv->own_index) { - gst_object_unref (parse->priv->index); - parse->priv->index = NULL; - parse->priv->own_index = FALSE; - } - - /* If no index was created, generate one */ - if (G_UNLIKELY (!parse->priv->index)) { - GST_DEBUG_OBJECT (parse, "no index provided creating our own"); - - parse->priv->index = gst_index_factory_make ("memindex"); - gst_index_get_writer_id (parse->priv->index, GST_OBJECT (parse), - &parse->priv->index_id); - parse->priv->own_index = TRUE; - } - break; - default: - break; - } - - result = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition); - - switch (transition) { - case GST_STATE_CHANGE_PAUSED_TO_READY: - gst_base_parse_reset (parse); - break; - default: - break; - } - - return result; -} diff --git a/gst/audioparsers/gstbaseparse.h b/gst/audioparsers/gstbaseparse.h deleted file mode 100644 index 82ec5f6..0000000 --- a/gst/audioparsers/gstbaseparse.h +++ /dev/null @@ -1,358 +0,0 @@ -/* GStreamer - * Copyright (C) 2008 Nokia Corporation. All rights reserved. - * - * Contact: Stefan Kost - * - * This library is free software; you can redistribute it and/or - * modify it under the terms of the GNU Library General Public - * License as published by the Free Software Foundation; either - * version 2 of the License, or (at your option) any later version. - * - * This library is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * Library General Public License for more details. - * - * You should have received a copy of the GNU Library General Public - * License along with this library; if not, write to the - * Free Software Foundation, Inc., 59 Temple Place - Suite 330, - * Boston, MA 02111-1307, USA. - */ - -#ifndef __GST_BASE_PARSE_H__ -#define __GST_BASE_PARSE_H__ - -#include -#include - -G_BEGIN_DECLS - -#define GST_TYPE_BASE_PARSE (gst_base_parse_get_type()) -#define GST_BASE_PARSE(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_BASE_PARSE,GstBaseParse)) -#define GST_BASE_PARSE_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_BASE_PARSE,GstBaseParseClass)) -#define GST_BASE_PARSE_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS((obj),GST_TYPE_BASE_PARSE,GstBaseParseClass)) -#define GST_IS_BASE_PARSE(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_BASE_PARSE)) -#define GST_IS_BASE_PARSE_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_BASE_PARSE)) -#define GST_BASE_PARSE_CAST(obj) ((GstBaseParse *)(obj)) - -/** - * GST_BASE_PARSE_SINK_NAME: - * - * the name of the templates for the sink pad - */ -#define GST_BASE_PARSE_SINK_NAME "sink" -/** - * GST_BASE_PARSE_SRC_NAME: - * - * the name of the templates for the source pad - */ -#define GST_BASE_PARSE_SRC_NAME "src" - -/** - * GST_BASE_PARSE_SRC_PAD: - * @obj: base parse instance - * - * Gives the pointer to the source #GstPad object of the element. - * - * Since: 0.10.x - */ -#define GST_BASE_PARSE_SRC_PAD(obj) (GST_BASE_PARSE_CAST (obj)->srcpad) - -/** - * GST_BASE_PARSE_SINK_PAD: - * @obj: base parse instance - * - * Gives the pointer to the sink #GstPad object of the element. - * - * Since: 0.10.x - */ -#define GST_BASE_PARSE_SINK_PAD(obj) (GST_BASE_PARSE_CAST (obj)->sinkpad) - -/** - * GST_BASE_PARSE_SEGMENT: - * @obj: base parse instance - * - * Gives the segment of the element. - * - * Since: 0.10.x - */ -#define GST_BASE_PARSE_SEGMENT(obj) (GST_BASE_PARSE_CAST (obj)->segment) - -/** - * GST_BASE_PARSE_FLOW_DROPPED: - * - * A #GstFlowReturn that can be returned from parse_frame to - * indicate that no output buffer was generated, or from pre_push_buffer to - * to forego pushing buffer. - * - * Since: 0.10.x - */ -#define GST_BASE_PARSE_FLOW_DROPPED GST_FLOW_CUSTOM_SUCCESS - -/** - * GstBaseParseFrameFlags: - * @GST_BASE_PARSE_FRAME_FLAG_NONE: no flag - * @GST_BASE_PARSE_FRAME_FLAG_SYNC: indicates if parsing is 'in sync' - * @GST_BASE_PARSE_FRAME_FLAG_DRAIN: indicates if parser is 'draining'. - * That is, leftover data (e.g. in FLUSH or EOS situation) is being parsed. - * @GST_BASE_PARSE_FRAME_FLAG_NO_FRAME: set to indicate this buffer should not be - * counted as frame, e.g. if this frame is dependent on a previous one. - * As it is not counted as a frame, bitrate increases but frame to time - * conversions are maintained. - * @GST_BASE_PARSE_FRAME_FLAG_CLIP: @pre_push_buffer can set this to indicate - * that regular segment clipping can still be performed (as opposed to - * any custom one having been done). - * - * Flags to be used in a #GstBaseParseFrame. - * - * Since: 0.10.x - */ -typedef enum { - GST_BASE_PARSE_FRAME_FLAG_NONE = 0, - GST_BASE_PARSE_FRAME_FLAG_SYNC = (1 << 0), - GST_BASE_PARSE_FRAME_FLAG_DRAIN = (1 << 1), - GST_BASE_PARSE_FRAME_FLAG_NO_FRAME = (1 << 2), - GST_BASE_PARSE_FRAME_FLAG_CLIP = (1 << 3) -} GstBaseParseFrameFlags; - -/** - * GstBaseParseFrame: - * @buffer: data to check for valid frame or parsed frame. - * Subclass is allowed to replace this buffer. - * @overhead: subclass can set this to indicates the metadata overhead - * for the given frame, which is then used to enable more accurate bitrate - * computations. If this is -1, it is assumed that this frame should be - * skipped in bitrate calculation. - * @flags: a combination of input and output #GstBaseParseFrameFlags that - * convey additional context to subclass or allow subclass to tune - * subsequent #GstBaseParse actions. - * - * Frame (context) data passed to each frame parsing virtual methods. In - * addition to providing the data to be checked for a valid frame or an already - * identified frame, it conveys additional metadata or control information - * from and to the subclass w.r.t. the particular frame in question (rather - * than global parameters). Some of these may apply to each parsing stage, others - * only to some a particular one. These parameters are effectively zeroed at start - * of each frame's processing, i.e. parsing virtual method invocation sequence. - * - * Since: 0.10.x - */ -typedef struct { - GstBuffer *buffer; - guint flags; - gint overhead; -} GstBaseParseFrame; - -/** - * GST_BASE_PARSE_FRAME_SYNC: - * @frame: base parse frame instance - * - * Obtains current sync status indicated in frame. - * - * Since: 0.10.x - */ -#define GST_BASE_PARSE_FRAME_SYNC(frame) (!!(frame->flags & GST_BASE_PARSE_FRAME_FLAG_SYNC)) - -/** - * GST_BASE_PARSE_FRAME_DRAIN: - * @frame: base parse frame instance - * - * Obtains current drain status indicated in frame. - * - * Since: 0.10.x - */ -#define GST_BASE_PARSE_FRAME_DRAIN(frame) (!!(frame->flags & GST_BASE_PARSE_FRAME_FLAG_DRAIN)) - -/** - * GstBaseParseFormat: - * @GST_BASE_PARSE_FORMAT_NONE: default setting - * @GST_BASE_PARSE_FORMAT_PASSTHROUGH: nature of format or configuration - * does not allow (much) parsing, so parser should operate in passthrough mode - * (which only applies operating in pull mode). That is, incoming buffers - * are pushed through unmodified, i.e. no @check_valid_frame or @parse_frame - * callbacks will be invoked. On the other hand, @pre_push_buffer is still invoked, - * where subclass can perform as much or as little is appropriate for - * "passthrough" semantics. - * @GST_BASE_PARSE_FORMAT_HAS_TIME: frames carry timing info which subclass - * can (generally) parse and provide. In particular, intrinsic time - * (rather than estimated) can be obtained following seek. - * - * Since: 0.10.x - */ -typedef enum _GstBaseParseFormat { - GST_BASE_PARSE_FORMAT_NONE = 0, - GST_BASE_PARSE_FORMAT_PASSTHROUGH = (1 << 0), - GST_BASE_PARSE_FORMAT_HAS_TIME = (1 << 1), -} GstBaseParseFormat; - -/** - * GstBaseParseSeekable: - * @GST_BASE_PARSE_SEEK_NONE: No seeking possible. - * @GST_BASE_PARSE_SEEK_DEFAULT: Default seeking possible using estimated bitrate. - * @GST_BASE_PARSE_SEEK_TABLE: Additional metadata provides more accurate seeking. - * - * Indicates what level (of quality) of seeking is possible. - * - * Since: 0.10.x - */ -typedef enum _GstBaseParseSeekable { - GST_BASE_PARSE_SEEK_NONE, - GST_BASE_PARSE_SEEK_DEFAULT, - GST_BASE_PARSE_SEEK_TABLE -} GstBaseParseSeekable; - -typedef struct _GstBaseParse GstBaseParse; -typedef struct _GstBaseParseClass GstBaseParseClass; -typedef struct _GstBaseParsePrivate GstBaseParsePrivate; - -/** - * GstBaseParse: - * @element: the parent element. - * - * The opaque #GstBaseParse data structure. - */ -struct _GstBaseParse { - GstElement element; - GstAdapter *adapter; - - /*< protected >*/ - /* source and sink pads */ - GstPad *sinkpad; - GstPad *srcpad; - - /* MT-protected (with STREAM_LOCK) */ - GstSegment segment; - - /* Newsegment event to be sent after SEEK */ - GstEvent *pending_segment; - - /* Segment event that closes the running segment prior to SEEK */ - GstEvent *close_segment; - - /*< private >*/ - gpointer _gst_reserved[GST_PADDING_LARGE]; - GstBaseParsePrivate *priv; -}; - -/** - * GstBaseParseClass: - * @start: Optional. - * Called when the element starts processing. - * Allows opening external resources. - * @stop: Optional. - * Called when the element stops processing. - * Allows closing external resources. - * @set_sink_caps: allows the subclass to be notified of the actual caps set. - * @check_valid_frame: Check if the given piece of data contains a valid - * frame. - * @parse_frame: Parse the already checked frame. Subclass need to - * set the buffer timestamp, duration, caps and possibly - * other necessary metadata. This is called with srcpad's - * STREAM_LOCK held. - * @convert: Optional. - * Convert between formats. - * @find_frame: Optional. - * Finds a frame. Gets a position passed and should return - * TRUE and the offset in bytes where this position is. - * Will only be called in pull mode and the subclass can pull - * whatever it wants from upstream. If not implemented, - * the base class will implement it by calling - * @check_valid_frame and @parse_frame to find the wanted - * frame and build a seek table. - * @event: Optional. - * Event handler on the sink pad. This function should return - * TRUE if the event was handled and can be dropped. - * @src_event: Optional. - * Event handler on the source pad. Should return TRUE - * if the event was handled and can be dropped. - * - * @get_frame_overhead: Finds the metadata overhead for the given frame. This - * is used to enable more accurate bitrate computations. - * If NULL, the per-frame overhead is assumed to be 0. If - * this returns -1, it is assumed that this frame should - * be skipped in bitrate calculation. - * - * @pre_push_buffer: Optional. - * Called just prior to pushing a frame (after any pending - * events have been sent) to give subclass a chance to perform - * additional actions at this time (e.g. tag sending) or to - * decide whether this buffer should be dropped or not - * (e.g. custom segment clipping). - * - * Subclasses can override any of the available virtual methods or not, as - * needed. At minimum @check_valid_frame and @parse_frame needs to be - * overridden. - */ -struct _GstBaseParseClass { - GstElementClass parent_class; - - /*< public >*/ - /* virtual methods for subclasses */ - - gboolean (*start) (GstBaseParse *parse); - - gboolean (*stop) (GstBaseParse *parse); - - gboolean (*set_sink_caps) (GstBaseParse *parse, - GstCaps *caps); - - gboolean (*check_valid_frame) (GstBaseParse *parse, - GstBaseParseFrame *frame, - guint *framesize, - gint *skipsize); - - GstFlowReturn (*parse_frame) (GstBaseParse *parse, - GstBaseParseFrame *frame); - - GstFlowReturn (*pre_push_frame) (GstBaseParse *parse, - GstBaseParseFrame *frame); - - gboolean (*convert) (GstBaseParse * parse, - GstFormat src_format, - gint64 src_value, - GstFormat dest_format, - gint64 * dest_value); - - gboolean (*event) (GstBaseParse *parse, - GstEvent *event); - - gboolean (*src_event) (GstBaseParse *parse, - GstEvent *event); - - /*< private >*/ - gpointer _gst_reserved[GST_PADDING_LARGE]; -}; - -GType gst_base_parse_get_type (void); - -void gst_base_parse_frame_init (GstBaseParse * parse, - GstBaseParseFrame * frame); -GstFlowReturn gst_base_parse_push_frame (GstBaseParse *parse, - GstBaseParseFrame *frame); - -void gst_base_parse_set_duration (GstBaseParse *parse, - GstFormat fmt, gint64 duration, - gint interval); -void gst_base_parse_set_seek (GstBaseParse * parse, - GstBaseParseSeekable seek, - guint bitrate); -void gst_base_parse_set_min_frame_size (GstBaseParse *parse, - guint min_size); -void gst_base_parse_set_format (GstBaseParse * parse, - GstBaseParseFormat flag, - gboolean on); -void gst_base_parse_set_frame_props (GstBaseParse * parse, - guint fps_num, guint fps_den, - guint lead_in, guint lead_out); - -gboolean gst_base_parse_convert_default (GstBaseParse * parse, - GstFormat src_format, gint64 src_value, - GstFormat dest_format, gint64 * dest_value); - -gboolean gst_base_parse_add_index_entry (GstBaseParse * parse, - guint64 offset, GstClockTime ts, - gboolean key, gboolean force); - -G_END_DECLS - -#endif /* __GST_BASE_PARSE_H__ */ diff --git a/gst/audioparsers/gstdcaparse.h b/gst/audioparsers/gstdcaparse.h index 150a191..b0d7546 100644 --- a/gst/audioparsers/gstdcaparse.h +++ b/gst/audioparsers/gstdcaparse.h @@ -21,7 +21,7 @@ #define __GST_DCA_PARSE_H__ #include -#include "gstbaseparse.h" +#include G_BEGIN_DECLS diff --git a/gst/audioparsers/gstflacparse.h b/gst/audioparsers/gstflacparse.h index 3394115..664b2a6 100644 --- a/gst/audioparsers/gstflacparse.h +++ b/gst/audioparsers/gstflacparse.h @@ -25,7 +25,7 @@ #define __GST_FLAC_PARSE_H__ #include -#include "gstbaseparse.h" +#include G_BEGIN_DECLS diff --git a/gst/audioparsers/gstmpegaudioparse.h b/gst/audioparsers/gstmpegaudioparse.h index cf5fd37..3f680d1 100644 --- a/gst/audioparsers/gstmpegaudioparse.h +++ b/gst/audioparsers/gstmpegaudioparse.h @@ -24,7 +24,7 @@ #define __GST_MPEG_AUDIO_PARSE_H__ #include -#include "gstbaseparse.h" +#include G_BEGIN_DECLS -- 2.7.4