/* GStreamer
* Copyright (C) <1999> Erik Walthinsen <omega@temple-baptist.com>
* Copyright (C) <2006> Nokia Corporation (contact <stefan.kost@nokia.com>)
+ * Copyright (C) <2009-2010> STEricsson <benjamin.gaignard@stericsson.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
#endif
#include <string.h>
+#include <stdio.h>
#include "gst/riff/riff-media.h"
#include "gstavidemux.h"
#define DIV_ROUND_UP(s,v) (((s) + ((v)-1)) / (v))
+#define GST_AVI_KEYFRAME 1
+#define ENTRY_IS_KEYFRAME(e) ((e)->flags == GST_AVI_KEYFRAME)
+#define ENTRY_SET_KEYFRAME(e) ((e)->flags = GST_AVI_KEYFRAME)
+#define ENTRY_UNSET_KEYFRAME(e) ((e)->flags = 0)
+
+
GST_DEBUG_CATEGORY_STATIC (avidemux_debug);
#define GST_CAT_DEFAULT avidemux_debug
static gboolean gst_avi_demux_do_seek (GstAviDemux * avi, GstSegment * segment);
static gboolean gst_avi_demux_handle_seek (GstAviDemux * avi, GstPad * pad,
GstEvent * event);
+static gboolean gst_avi_demux_handle_seek_push (GstAviDemux * avi, GstPad * pad,
+ GstEvent * event);
static void gst_avi_demux_loop (GstPad * pad);
static gboolean gst_avi_demux_sink_activate (GstPad * sinkpad);
static gboolean gst_avi_demux_sink_activate_pull (GstPad * sinkpad,
static gboolean gst_avi_demux_activate_push (GstPad * pad, gboolean active);
static GstFlowReturn gst_avi_demux_chain (GstPad * pad, GstBuffer * buf);
+static void gst_avi_demux_set_index (GstElement * element, GstIndex * index);
+static GstIndex *gst_avi_demux_get_index (GstElement * element);
static GstStateChangeReturn gst_avi_demux_change_state (GstElement * element,
GstStateChange transition);
+static void gst_avi_demux_calculate_durations_from_index (GstAviDemux * avi);
+static void gst_avi_demux_get_buffer_info (GstAviDemux * avi,
+ GstAviStream * stream, guint entry_n, GstClockTime * timestamp,
+ GstClockTime * ts_end, guint64 * offset, guint64 * offset_end);
+
+static void gst_avi_demux_parse_idit (GstAviDemux * avi, GstBuffer * buf);
static GstElementClass *parent_class = NULL;
static void
gst_avi_demux_base_init (GstAviDemuxClass * klass)
{
- static const GstElementDetails gst_avi_demux_details =
- GST_ELEMENT_DETAILS ("Avi demuxer",
- "Codec/Demuxer",
- "Demultiplex an avi file into audio and video",
- "Erik Walthinsen <omega@cse.ogi.edu>\n"
- "Wim Taymans <wim.taymans@chello.be>\n"
- "Thijs Vermeir <thijsvermeir@gmail.com>");
GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
GstPadTemplate *videosrctempl, *audiosrctempl, *subsrctempl;
GstCaps *audcaps, *vidcaps, *subcaps;
gst_element_class_add_pad_template (element_class, subsrctempl);
gst_element_class_add_pad_template (element_class,
gst_static_pad_template_get (&sink_templ));
- gst_element_class_set_details (element_class, &gst_avi_demux_details);
+ gst_element_class_set_details_simple (element_class, "Avi demuxer",
+ "Codec/Demuxer",
+ "Demultiplex an avi file into audio and video",
+ "Erik Walthinsen <omega@cse.ogi.edu>, "
+ "Wim Taymans <wim.taymans@chello.be>, "
+ "Thijs Vermeir <thijsvermeir@gmail.com>");
}
static void
gobject_class->finalize = gst_avi_demux_finalize;
gstelement_class->change_state =
GST_DEBUG_FUNCPTR (gst_avi_demux_change_state);
+
+ gstelement_class->set_index = GST_DEBUG_FUNCPTR (gst_avi_demux_set_index);
+ gstelement_class->get_index = GST_DEBUG_FUNCPTR (gst_avi_demux_get_index);
}
static void
GST_DEBUG_FUNCPTR (gst_avi_demux_chain));
gst_pad_set_event_function (avi->sinkpad,
GST_DEBUG_FUNCPTR (gst_avi_demux_handle_sink_event));
- gst_element_add_pad (GST_ELEMENT (avi), avi->sinkpad);
+ gst_element_add_pad (GST_ELEMENT_CAST (avi), avi->sinkpad);
avi->adapter = gst_adapter_new ();
if (stream->extradata)
gst_buffer_unref (stream->extradata);
if (stream->pad) {
- gst_pad_set_active (stream->pad, FALSE);
- gst_element_remove_pad (GST_ELEMENT (avi), stream->pad);
+ if (stream->exposed) {
+ gst_pad_set_active (stream->pad, FALSE);
+ gst_element_remove_pad (GST_ELEMENT_CAST (avi), stream->pad);
+ } else
+ gst_object_unref (stream->pad);
}
if (stream->taglist) {
gst_tag_list_free (stream->taglist);
avi->num_v_streams = 0;
avi->num_a_streams = 0;
avi->num_t_streams = 0;
+ avi->main_stream = -1;
avi->state = GST_AVI_DEMUX_START;
avi->offset = 0;
+ avi->building_index = FALSE;
avi->index_offset = 0;
g_free (avi->avih);
avi->avih = NULL;
+ if (avi->element_index)
+ gst_object_unref (avi->element_index);
+ avi->element_index = NULL;
+
+ if (avi->close_seg_event) {
+ gst_event_unref (avi->close_seg_event);
+ avi->close_seg_event = NULL;
+ }
+ if (avi->seg_event) {
+ gst_event_unref (avi->seg_event);
+ avi->seg_event = NULL;
+ }
if (avi->seek_event) {
gst_event_unref (avi->seek_event);
avi->seek_event = NULL;
avi->got_tags = TRUE; /* we always want to push global tags */
avi->have_eos = FALSE;
+ avi->seekable = TRUE;
gst_adapter_clear (avi->adapter);
case GST_QUERY_DURATION:
{
GstFormat fmt;
+ GstClockTime duration;
+ /* only act on audio or video streams */
if (stream->strh->type != GST_RIFF_FCC_auds &&
stream->strh->type != GST_RIFF_FCC_vids) {
res = FALSE;
break;
}
+ /* take stream duration, fall back to avih duration */
+ if ((duration = stream->duration) == -1)
+ duration = avi->duration;
+
gst_query_parse_duration (query, &fmt, NULL);
switch (fmt) {
case GST_FORMAT_TIME:
- gst_query_set_duration (query, fmt, stream->duration);
+ gst_query_set_duration (query, fmt, duration);
break;
case GST_FORMAT_DEFAULT:
{
if (stream->idx_n >= 0)
gst_query_set_duration (query, fmt, stream->idx_n);
else if (gst_pad_query_convert (pad, GST_FORMAT_TIME,
- stream->duration, &fmt, &dur))
+ duration, &fmt, &dur))
gst_query_set_duration (query, fmt, dur);
break;
}
gboolean seekable = TRUE;
if (avi->streaming) {
- seekable = FALSE;
+ seekable = avi->seekable;
}
gst_query_set_seeking (query, GST_FORMAT_TIME, seekable,
}
#endif
+static guint64
+gst_avi_demux_seek_streams (GstAviDemux * avi, guint64 offset, gboolean before)
+{
+ GstAviStream *stream;
+ GstIndexEntry *entry;
+ gint i;
+ gint64 val, min = offset;
+
+ for (i = 0; i < avi->num_streams; i++) {
+ stream = &avi->stream[i];
+
+ entry = gst_index_get_assoc_entry (avi->element_index, stream->index_id,
+ before ? GST_INDEX_LOOKUP_BEFORE : GST_INDEX_LOOKUP_AFTER,
+ GST_ASSOCIATION_FLAG_NONE, GST_FORMAT_BYTES, offset);
+
+ if (before) {
+ if (entry) {
+ gst_index_entry_assoc_map (entry, GST_FORMAT_BYTES, &val);
+ GST_DEBUG_OBJECT (avi, "stream %d, previous entry at %"
+ G_GUINT64_FORMAT, i, val);
+ if (val < min)
+ min = val;
+ }
+ continue;
+ }
+
+ if (!entry) {
+ GST_DEBUG_OBJECT (avi, "no position for stream %d, assuming at start", i);
+ stream->current_entry = 0;
+ stream->current_total = 0;
+ continue;
+ }
+
+ gst_index_entry_assoc_map (entry, GST_FORMAT_BYTES, &val);
+ GST_DEBUG_OBJECT (avi, "stream %d, next entry at %" G_GUINT64_FORMAT,
+ i, val);
+
+ gst_index_entry_assoc_map (entry, GST_FORMAT_TIME, &val);
+ stream->current_total = val;
+ gst_index_entry_assoc_map (entry, GST_FORMAT_DEFAULT, &val);
+ stream->current_entry = val;
+ }
+
+ return min;
+}
+
+static guint
+gst_avi_demux_index_entry_offset_search (GstAviIndexEntry * entry,
+ guint64 * offset)
+{
+ if (entry->offset < *offset)
+ return -1;
+ else if (entry->offset > *offset)
+ return 1;
+ return 0;
+}
+
+static guint64
+gst_avi_demux_seek_streams_index (GstAviDemux * avi, guint64 offset,
+ gboolean before)
+{
+ GstAviStream *stream;
+ GstAviIndexEntry *entry;
+ gint i;
+ gint64 val, min = offset;
+ guint index;
+
+ for (i = 0; i < avi->num_streams; i++) {
+ stream = &avi->stream[i];
+
+ /* compensate for chunk header */
+ offset += 8;
+ entry =
+ gst_util_array_binary_search (stream->index, stream->idx_n,
+ sizeof (GstAviIndexEntry),
+ (GCompareDataFunc) gst_avi_demux_index_entry_offset_search,
+ before ? GST_SEARCH_MODE_BEFORE : GST_SEARCH_MODE_AFTER, &offset, NULL);
+ offset -= 8;
+
+ if (entry)
+ index = entry - stream->index;
+
+ if (before) {
+ if (entry) {
+ val = stream->index[index].offset;
+ GST_DEBUG_OBJECT (avi,
+ "stream %d, previous entry at %" G_GUINT64_FORMAT, i, val);
+ if (val < min)
+ min = val;
+ }
+ continue;
+ }
+
+ if (!entry) {
+ GST_DEBUG_OBJECT (avi, "no position for stream %d, assuming at start", i);
+ stream->current_entry = 0;
+ stream->current_total = 0;
+ continue;
+ }
+
+ val = stream->index[index].offset - 8;
+ GST_DEBUG_OBJECT (avi, "stream %d, next entry at %" G_GUINT64_FORMAT, i,
+ val);
+
+ stream->current_total = stream->index[index].total;
+ stream->current_entry = index;
+ }
+
+ return min;
+}
+
+#define GST_AVI_SEEK_PUSH_DISPLACE (4 * GST_SECOND)
+
static gboolean
gst_avi_demux_handle_sink_event (GstPad * pad, GstEvent * event)
{
switch (GST_EVENT_TYPE (event)) {
case GST_EVENT_NEWSEGMENT:
- /* Drop NEWSEGMENT events, new ones are generated later */
+ {
+ GstFormat format;
+ gdouble rate, arate;
+ gint64 start, stop, time, offset = 0;
+ gboolean update;
+ GstSegment segment;
+
+ /* some debug output */
+ gst_segment_init (&segment, GST_FORMAT_UNDEFINED);
+ gst_event_parse_new_segment_full (event, &update, &rate, &arate, &format,
+ &start, &stop, &time);
+ gst_segment_set_newsegment_full (&segment, update, rate, arate, format,
+ start, stop, time);
+ GST_DEBUG_OBJECT (avi,
+ "received format %d newsegment %" GST_SEGMENT_FORMAT, format,
+ &segment);
+
+ /* chain will send initial newsegment after pads have been added */
+ if (avi->state != GST_AVI_DEMUX_MOVI) {
+ GST_DEBUG_OBJECT (avi, "still starting, eating event");
+ goto exit;
+ }
+
+ /* we only expect a BYTE segment, e.g. following a seek */
+ if (format != GST_FORMAT_BYTES) {
+ GST_DEBUG_OBJECT (avi, "unsupported segment format, ignoring");
+ goto exit;
+ }
+
+ if (avi->have_index) {
+ GstAviIndexEntry *entry;
+ guint i = 0, index = 0, k = 0;
+ GstAviStream *stream;
+
+ /* compensate chunk header, stored index offset points after header */
+ start += 8;
+ /* find which stream we're on */
+ do {
+ stream = &avi->stream[i];
+
+ /* find the index for start bytes offset */
+ entry = gst_util_array_binary_search (stream->index,
+ stream->idx_n, sizeof (GstAviIndexEntry),
+ (GCompareDataFunc) gst_avi_demux_index_entry_offset_search,
+ GST_SEARCH_MODE_AFTER, &start, NULL);
+
+ if (entry == NULL)
+ continue;
+ index = entry - stream->index;
+
+ /* we are on the stream with a chunk start offset closest to start */
+ if (!offset || stream->index[index].offset < offset) {
+ offset = stream->index[index].offset;
+ k = i;
+ }
+ /* exact match needs no further searching */
+ if (stream->index[index].offset == start)
+ break;
+ } while (++i < avi->num_streams);
+ start -= 8;
+ offset -= 8;
+ stream = &avi->stream[k];
+
+ /* so we have no idea what is to come, or where we are */
+ if (!offset) {
+ GST_WARNING_OBJECT (avi, "insufficient index data, forcing EOS");
+ goto eos;
+ }
+
+ /* get the ts corresponding to start offset bytes for the stream */
+ gst_avi_demux_get_buffer_info (avi, stream, index,
+ (GstClockTime *) & time, NULL, NULL, NULL);
+ } else if (avi->element_index) {
+ GstIndexEntry *entry;
+
+ /* Let's check if we have an index entry for this position */
+ entry = gst_index_get_assoc_entry (avi->element_index, avi->index_id,
+ GST_INDEX_LOOKUP_AFTER, GST_ASSOCIATION_FLAG_NONE,
+ GST_FORMAT_BYTES, start);
+
+ /* we can not go where we have not yet been before ... */
+ if (!entry) {
+ GST_WARNING_OBJECT (avi, "insufficient index data, forcing EOS");
+ goto eos;
+ }
+
+ gst_index_entry_assoc_map (entry, GST_FORMAT_TIME, &time);
+ gst_index_entry_assoc_map (entry, GST_FORMAT_BYTES, &offset);
+ } else {
+ GST_WARNING_OBJECT (avi, "no index data, forcing EOS");
+ goto eos;
+ }
+
+ stop = GST_CLOCK_TIME_NONE;
+
+ /* set up segment and send downstream */
+ gst_segment_set_newsegment_full (&avi->segment, update, rate, arate,
+ GST_FORMAT_TIME, time, stop, time);
+ GST_DEBUG_OBJECT (avi, "Pushing newseg update %d, rate %g, "
+ "applied rate %g, format %d, start %" G_GINT64_FORMAT ", "
+ "stop %" G_GINT64_FORMAT, update, rate, arate, GST_FORMAT_TIME,
+ time, stop);
+ gst_avi_demux_push_event (avi,
+ gst_event_new_new_segment_full (update, rate, arate, GST_FORMAT_TIME,
+ time, stop, time));
+
+ GST_DEBUG_OBJECT (avi, "next chunk expected at %" G_GINT64_FORMAT, start);
+
+ /* adjust state for streaming thread accordingly */
+ if (avi->have_index)
+ gst_avi_demux_seek_streams_index (avi, offset, FALSE);
+ else
+ gst_avi_demux_seek_streams (avi, offset, FALSE);
+
+ /* set up streaming thread */
+ g_assert (offset >= start);
+ avi->offset = start;
+ avi->todrop = offset - start;
+
+ exit:
gst_event_unref (event);
+ res = TRUE;
break;
+ eos:
+ /* set up for EOS */
+ avi->have_eos = TRUE;
+ goto exit;
+ }
case GST_EVENT_EOS:
{
if (avi->state != GST_AVI_DEMUX_MOVI) {
}
break;
}
+ case GST_EVENT_FLUSH_STOP:
+ {
+ gint i;
+
+ gst_adapter_clear (avi->adapter);
+ avi->have_eos = FALSE;
+ for (i = 0; i < avi->num_streams; i++) {
+ avi->stream[i].last_flow = GST_FLOW_OK;
+ avi->stream[i].discont = TRUE;
+ }
+ /* fall through to default case so that the event gets passed downstream */
+ }
default:
res = gst_pad_event_default (pad, event);
break;
switch (GST_EVENT_TYPE (event)) {
case GST_EVENT_SEEK:
- /* handle seeking only in pull mode */
if (!avi->streaming) {
res = gst_avi_demux_handle_seek (avi, pad, event);
- gst_event_unref (event);
} else {
- res = gst_pad_event_default (pad, event);
+ res = gst_avi_demux_handle_seek_push (avi, pad, event);
}
+ gst_event_unref (event);
break;
case GST_EVENT_QOS:
case GST_EVENT_NAVIGATION:
goto not_avi;
stamp = gst_util_get_timestamp () - stamp;
- GST_DEBUG_OBJECT (element, "parsing header %" GST_TIME_FORMAT,
+ GST_DEBUG_OBJECT (element, "header parsing took %" GST_TIME_FORMAT,
GST_TIME_ARGS (stamp));
return TRUE;
tmp = gst_adapter_take_buffer (avi->adapter, 12);
GST_DEBUG ("Parsing avi header");
- if (!gst_avi_demux_parse_file_header (GST_ELEMENT (avi), tmp)) {
+ if (!gst_avi_demux_parse_file_header (GST_ELEMENT_CAST (avi), tmp)) {
return GST_FLOW_ERROR;
}
GST_DEBUG ("header ok");
}
/* AVI header handling */
-
/*
* gst_avi_demux_parse_avih:
- * @element: caller element (used for errors/debug).
+ * @avi: caller element (used for errors/debug).
* @buf: input data to be used for parsing.
* @avih: pointer to structure (filled in by function) containing
* stream information (such as flags, number of streams, etc.).
* (fatal).
*/
static gboolean
-gst_avi_demux_parse_avih (GstElement * element,
+gst_avi_demux_parse_avih (GstAviDemux * avi,
GstBuffer * buf, gst_riff_avih ** _avih)
{
gst_riff_avih *avih;
#endif
/* debug stuff */
- GST_INFO_OBJECT (element, "avih tag found:");
- GST_INFO_OBJECT (element, " us_frame %u", avih->us_frame);
- GST_INFO_OBJECT (element, " max_bps %u", avih->max_bps);
- GST_INFO_OBJECT (element, " pad_gran %u", avih->pad_gran);
- GST_INFO_OBJECT (element, " flags 0x%08x", avih->flags);
- GST_INFO_OBJECT (element, " tot_frames %u", avih->tot_frames);
- GST_INFO_OBJECT (element, " init_frames %u", avih->init_frames);
- GST_INFO_OBJECT (element, " streams %u", avih->streams);
- GST_INFO_OBJECT (element, " bufsize %u", avih->bufsize);
- GST_INFO_OBJECT (element, " width %u", avih->width);
- GST_INFO_OBJECT (element, " height %u", avih->height);
- GST_INFO_OBJECT (element, " scale %u", avih->scale);
- GST_INFO_OBJECT (element, " rate %u", avih->rate);
- GST_INFO_OBJECT (element, " start %u", avih->start);
- GST_INFO_OBJECT (element, " length %u", avih->length);
+ GST_INFO_OBJECT (avi, "avih tag found:");
+ GST_INFO_OBJECT (avi, " us_frame %u", avih->us_frame);
+ GST_INFO_OBJECT (avi, " max_bps %u", avih->max_bps);
+ GST_INFO_OBJECT (avi, " pad_gran %u", avih->pad_gran);
+ GST_INFO_OBJECT (avi, " flags 0x%08x", avih->flags);
+ GST_INFO_OBJECT (avi, " tot_frames %u", avih->tot_frames);
+ GST_INFO_OBJECT (avi, " init_frames %u", avih->init_frames);
+ GST_INFO_OBJECT (avi, " streams %u", avih->streams);
+ GST_INFO_OBJECT (avi, " bufsize %u", avih->bufsize);
+ GST_INFO_OBJECT (avi, " width %u", avih->width);
+ GST_INFO_OBJECT (avi, " height %u", avih->height);
+ GST_INFO_OBJECT (avi, " scale %u", avih->scale);
+ GST_INFO_OBJECT (avi, " rate %u", avih->rate);
+ GST_INFO_OBJECT (avi, " start %u", avih->start);
+ GST_INFO_OBJECT (avi, " length %u", avih->length);
*_avih = avih;
gst_buffer_unref (buf);
+ if (avih->us_frame != 0 && avih->tot_frames != 0)
+ avi->duration =
+ (guint64) avih->us_frame * (guint64) avih->tot_frames * 1000;
+ else
+ avi->duration = GST_CLOCK_TIME_NONE;
+
+ GST_INFO_OBJECT (avi, " header duration %" GST_TIME_FORMAT,
+ GST_TIME_ARGS (avi->duration));
+
return TRUE;
/* ERRORS */
no_buffer:
{
- GST_ELEMENT_ERROR (element, STREAM, DEMUX, (NULL), ("No buffer"));
+ GST_ELEMENT_ERROR (avi, STREAM, DEMUX, (NULL), ("No buffer"));
return FALSE;
}
avih_too_small:
{
- GST_ELEMENT_ERROR (element, STREAM, DEMUX, (NULL),
+ GST_ELEMENT_ERROR (avi, STREAM, DEMUX, (NULL),
("Too small avih (%d available, %d needed)",
GST_BUFFER_SIZE (buf), (int) sizeof (gst_riff_avih)));
gst_buffer_unref (buf);
}
num = GST_READ_UINT32_LE (&data[4]);
+ GST_DEBUG_OBJECT (avi, "got %d indexes", num);
+
indexes = g_new (guint64, num + 1);
for (i = 0; i < num; i++) {
if (size < 24 + bpe * (i + 1))
break;
indexes[i] = GST_READ_UINT64_LE (&data[24 + bpe * i]);
+ GST_DEBUG_OBJECT (avi, "index %d at %" G_GUINT64_FORMAT, i, indexes[i]);
}
indexes[i] = GST_BUFFER_OFFSET_NONE;
*_indexes = indexes;
*ts_end = avi_stream_convert_frames_to_time_unchecked (stream,
entry_n + 1);
}
- } else {
+ } else if (stream->strh->type == GST_RIFF_FCC_auds) {
/* constant rate stream */
if (timestamp)
*timestamp =
/* collect and debug stats about the indexes for all streams.
* This method is also responsible for filling in the stream duration
- * as measured by the amount of index entries. */
-static void
+ * as measured by the amount of index entries.
+ *
+ * Returns TRUE if the index is not empty, else FALSE */
+static gboolean
gst_avi_demux_do_index_stats (GstAviDemux * avi)
{
+ guint total_idx = 0;
guint i;
#ifndef GST_DISABLE_GST_DEBUG
- guint total_idx = 0, total_max = 0;
+ guint total_max = 0;
#endif
/* get stream stats now */
gst_avi_demux_get_buffer_info (avi, stream, stream->idx_n - 1,
NULL, &stream->idx_duration, NULL, NULL);
-#ifndef GST_DISABLE_GST_DEBUG
total_idx += stream->idx_n;
+#ifndef GST_DISABLE_GST_DEBUG
total_max += stream->idx_max;
#endif
GST_INFO_OBJECT (avi, "Stream %d, dur %" GST_TIME_FORMAT ", %6u entries, "
(guint) (stream->idx_n * sizeof (GstAviIndexEntry)),
(guint) (stream->idx_max * sizeof (GstAviIndexEntry)));
}
-#ifndef GST_DISABLE_GST_DEBUG
total_idx *= sizeof (GstAviIndexEntry);
+#ifndef GST_DISABLE_GST_DEBUG
total_max *= sizeof (GstAviIndexEntry);
#endif
GST_INFO_OBJECT (avi, "%u bytes for index vs %u ideally, %u wasted",
total_max, total_idx, total_max - total_idx);
+
+ if (total_idx == 0) {
+ GST_WARNING_OBJECT (avi, "Index is empty !");
+ return FALSE;
+ }
+ return TRUE;
}
/*
}
}
-#if 0
+/*
+ * Create and push a flushing seek event upstream
+ */
+static gboolean
+perform_seek_to_offset (GstAviDemux * demux, guint64 offset)
+{
+ GstEvent *event;
+ gboolean res = 0;
+
+ GST_DEBUG_OBJECT (demux, "Seeking to %" G_GUINT64_FORMAT, offset);
+
+ event =
+ gst_event_new_seek (1.0, GST_FORMAT_BYTES,
+ GST_SEEK_FLAG_FLUSH | GST_SEEK_FLAG_ACCURATE, GST_SEEK_TYPE_SET, offset,
+ GST_SEEK_TYPE_NONE, -1);
+
+ res = gst_pad_push_event (demux->sinkpad, event);
+
+ if (res)
+ demux->offset = offset;
+ return res;
+}
+
/*
* Read AVI index when streaming
*/
-static void
+static gboolean
gst_avi_demux_read_subindexes_push (GstAviDemux * avi)
{
guint32 tag = 0, size;
GstBuffer *buf = NULL;
- gint i, n;
+ guint odml_stream;
GST_DEBUG_OBJECT (avi, "read subindexes for %d streams", avi->num_streams);
- for (n = 0; n < avi->num_streams; n++) {
- GstAviStream *stream = &avi->stream[n];
+ if (avi->odml_subidxs[avi->odml_subidx] != avi->offset)
+ return FALSE;
- for (i = 0; stream->indexes[i] != GST_BUFFER_OFFSET_NONE; i++) {
- if (!gst_avi_demux_peek_chunk (avi, &tag, &size))
- continue;
- else if ((tag != GST_MAKE_FOURCC ('i', 'x', '0' + stream->num / 10,
- '0' + stream->num % 10)) &&
- (tag != GST_MAKE_FOURCC ('0' + stream->num / 10,
- '0' + stream->num % 10, 'i', 'x'))) {
- GST_WARNING_OBJECT (avi, "Not an ix## chunk (%" GST_FOURCC_FORMAT ")",
- GST_FOURCC_ARGS (tag));
- continue;
- }
+ if (!gst_avi_demux_peek_chunk (avi, &tag, &size))
+ return TRUE;
- avi->offset += 8 + GST_ROUND_UP_2 (size);
+ /* this is the ODML chunk we expect */
+ odml_stream = avi->odml_stream;
- buf = gst_buffer_new ();
- GST_BUFFER_DATA (buf) = gst_adapter_take (avi->adapter, size);
- GST_BUFFER_SIZE (buf) = size;
+ if ((tag != GST_MAKE_FOURCC ('i', 'x', '0' + odml_stream / 10,
+ '0' + odml_stream % 10)) &&
+ (tag != GST_MAKE_FOURCC ('0' + odml_stream / 10,
+ '0' + odml_stream % 10, 'i', 'x'))) {
+ GST_WARNING_OBJECT (avi, "Not an ix## chunk (%" GST_FOURCC_FORMAT ")",
+ GST_FOURCC_ARGS (tag));
+ return FALSE;
+ }
- if (!gst_avi_demux_parse_subindex (avi, stream, buf))
- continue;
- }
+ avi->offset += 8 + GST_ROUND_UP_2 (size);
+ /* flush chunk header so we get just the 'size' payload data */
+ gst_adapter_flush (avi->adapter, 8);
+ buf = gst_adapter_take_buffer (avi->adapter, size);
- g_free (stream->indexes);
- stream->indexes = NULL;
+ if (!gst_avi_demux_parse_subindex (avi, &avi->stream[odml_stream], buf))
+ return FALSE;
+
+ /* we parsed the index, go to next subindex */
+ avi->odml_subidx++;
+
+ if (avi->odml_subidxs[avi->odml_subidx] == GST_BUFFER_OFFSET_NONE) {
+ /* we reached the end of the indexes for this stream, move to the next
+ * stream to handle the first index */
+ avi->odml_stream++;
+ avi->odml_subidx = 0;
+
+ if (avi->odml_stream < avi->num_streams) {
+ /* there are more indexes */
+ avi->odml_subidxs = avi->stream[avi->odml_stream].indexes;
+ } else {
+ /* we're done, get stream stats now */
+ avi->have_index = gst_avi_demux_do_index_stats (avi);
+
+ return TRUE;
+ }
}
- /* get stream stats now */
- gst_avi_demux_do_index_stats (avi);
- avi->have_index = TRUE;
+ /* seek to next index */
+ return perform_seek_to_offset (avi, avi->odml_subidxs[avi->odml_subidx]);
}
-#endif
/*
* Read AVI index
for (n = 0; n < avi->num_streams; n++) {
GstAviStream *stream = &avi->stream[n];
+ if (stream->indexes == NULL)
+ continue;
+
for (i = 0; stream->indexes[i] != GST_BUFFER_OFFSET_NONE; i++) {
if (gst_riff_read_chunk (GST_ELEMENT_CAST (avi), avi->sinkpad,
&stream->indexes[i], &tag, &buf) != GST_FLOW_OK)
stream->indexes = NULL;
}
/* get stream stats now */
- gst_avi_demux_do_index_stats (avi);
-
- avi->have_index = TRUE;
+ avi->have_index = gst_avi_demux_do_index_stats (avi);
}
/*
}
}
+static void
+gst_avi_demux_expose_streams (GstAviDemux * avi, gboolean force)
+{
+ guint i;
+
+ GST_DEBUG_OBJECT (avi, "force : %d", force);
+
+ for (i = 0; i < avi->num_streams; i++) {
+ GstAviStream *stream = &avi->stream[i];
+
+ if (force || stream->idx_n != 0) {
+ GST_LOG_OBJECT (avi, "Added pad %s with caps %" GST_PTR_FORMAT,
+ GST_PAD_NAME (stream->pad), GST_PAD_CAPS (stream->pad));
+ gst_element_add_pad ((GstElement *) avi, stream->pad);
+ stream->exposed = TRUE;
+ if (avi->main_stream == -1)
+ avi->main_stream = i;
+ } else {
+ GST_WARNING_OBJECT (avi, "Stream #%d doesn't have any entry, removing it",
+ i);
+ gst_avi_demux_reset_stream (avi, stream);
+ }
+ }
+}
+
/*
* gst_avi_demux_parse_stream:
* @avi: calling element (used for debugging/errors).
GST_DEBUG_OBJECT (element, "marking video as VBR, res %d", res);
break;
case GST_RIFF_FCC_auds:
- stream->is_vbr = (stream->strh->samplesize == 0)
- && stream->strh->scale > 1;
res =
gst_riff_parse_strf_auds (element, sub, &stream->strf.auds,
&stream->extradata);
+ stream->is_vbr = (stream->strh->samplesize == 0)
+ && stream->strh->scale > 1
+ && stream->strf.auds->blockalign != 1;
sub = NULL;
GST_DEBUG_OBJECT (element, "marking audio as VBR:%d, res %d",
stream->is_vbr, res);
+ /* we need these or we have no way to come up with timestamps */
+ if ((!stream->is_vbr && !stream->strf.auds->av_bps) ||
+ (stream->is_vbr && (!stream->strh->scale ||
+ !stream->strh->rate))) {
+ GST_WARNING_OBJECT (element,
+ "invalid audio header, ignoring stream");
+ goto fail;
+ }
+ /* some more sanity checks */
+ if (stream->is_vbr) {
+ if (stream->strf.auds->blockalign <= 4) {
+ /* that would mean (too) many frames per chunk,
+ * so not likely set as expected */
+ GST_DEBUG_OBJECT (element,
+ "suspicious blockalign %d for VBR audio; "
+ "overriding to 1 frame per chunk",
+ stream->strf.auds->blockalign);
+ /* this should top any likely value */
+ stream->strf.auds->blockalign = (1 << 12);
+ }
+ }
break;
case GST_RIFF_FCC_iavs:
stream->is_vbr = TRUE;
}
GST_DEBUG_OBJECT (avi, "stream name: %s", stream->name);
break;
+ case GST_RIFF_IDIT:
+ gst_avi_demux_parse_idit (avi, sub);
+ break;
default:
if (tag == GST_MAKE_FOURCC ('i', 'n', 'd', 'x') ||
tag == GST_MAKE_FOURCC ('i', 'x', '0' + avi->num_streams / 10,
"Unknown stream header tag %" GST_FOURCC_FORMAT ", ignoring",
GST_FOURCC_ARGS (tag));
/* fall-through */
+ case GST_RIFF_TAG_JUNQ:
case GST_RIFF_TAG_JUNK:
break;
}
GST_DEBUG_FUNCPTR (gst_avi_demux_src_convert));
#endif
+ if (avi->element_index)
+ gst_index_get_writer_id (avi->element_index, GST_OBJECT_CAST (stream->pad),
+ &stream->index_id);
+
stream->num = avi->num_streams;
stream->start_entry = 0;
gst_pad_set_caps (pad, caps);
gst_pad_set_active (pad, TRUE);
- gst_element_add_pad (GST_ELEMENT (avi), pad);
-
- GST_LOG_OBJECT (element, "Added pad %s with caps %" GST_PTR_FORMAT,
- GST_PAD_NAME (pad), caps);
gst_caps_unref (caps);
/* make tags */
"Unknown tag %" GST_FOURCC_FORMAT " in ODML header",
GST_FOURCC_ARGS (tag));
/* fall-through */
+ case GST_RIFF_TAG_JUNQ:
case GST_RIFF_TAG_JUNK:
next:
/* skip and move to next chunk */
static guint
gst_avi_demux_index_last (GstAviDemux * avi, GstAviStream * stream)
{
- return stream->idx_n - 1;
+ return stream->idx_n;
}
/* find a previous entry in the index with the given flags */
gst_buffer_unref (buf);
/* get stream stats now */
- gst_avi_demux_do_index_stats (avi);
+ avi->have_index = gst_avi_demux_do_index_stats (avi);
stamp = gst_util_get_timestamp () - stamp;
- GST_DEBUG_OBJECT (avi, "parsing index %" GST_TIME_FORMAT,
+ GST_DEBUG_OBJECT (avi, "index parsing took %" GST_TIME_FORMAT,
GST_TIME_ARGS (stamp));
- /* we have an index now */
- avi->have_index = TRUE;
-
return TRUE;
/* ERRORS */
}
/*
- * gst_avi_demux_peek_tag:
+ * gst_avi_demux_stream_index_push:
+ * @avi: avi demuxer object.
*
- * Returns the tag and size of the next chunk
+ * Read index.
*/
-static GstFlowReturn
-gst_avi_demux_peek_tag (GstAviDemux * avi, guint64 offset, guint32 * tag,
- guint * size)
+static void
+gst_avi_demux_stream_index_push (GstAviDemux * avi)
{
- GstFlowReturn res = GST_FLOW_OK;
- GstBuffer *buf = NULL;
- guint bufsize;
- guint8 *bufdata;
+ guint64 offset = avi->idx1_offset;
+ GstBuffer *buf;
+ guint32 tag;
+ guint32 size;
- res = gst_pad_pull_range (avi->sinkpad, offset, 8, &buf);
- if (res != GST_FLOW_OK)
- goto pull_failed;
+ GST_DEBUG ("demux stream index at offset %" G_GUINT64_FORMAT, offset);
- bufsize = GST_BUFFER_SIZE (buf);
- if (bufsize != 8)
- goto wrong_size;
+ /* get chunk information */
+ if (!gst_avi_demux_peek_chunk (avi, &tag, &size))
+ return;
- bufdata = GST_BUFFER_DATA (buf);
+ /* check tag first before blindly trying to read 'size' bytes */
+ if (tag == GST_RIFF_TAG_LIST) {
+ /* this is the movi tag */
+ GST_DEBUG_OBJECT (avi, "skip LIST chunk, size %" G_GUINT32_FORMAT,
+ (8 + GST_ROUND_UP_2 (size)));
+ avi->idx1_offset = offset + 8 + GST_ROUND_UP_2 (size);
+ /* issue seek to allow chain function to handle it and return! */
+ perform_seek_to_offset (avi, avi->idx1_offset);
+ return;
+ }
- *tag = GST_READ_UINT32_LE (bufdata);
- *size = GST_READ_UINT32_LE (bufdata + 4);
+ if (tag != GST_RIFF_TAG_idx1)
+ goto no_index;
- GST_LOG_OBJECT (avi, "Tag[%" GST_FOURCC_FORMAT "] (size:%d) %"
- G_GINT64_FORMAT " -- %" G_GINT64_FORMAT, GST_FOURCC_ARGS (*tag),
- *size, offset + 8, offset + 8 + (gint64) * size);
+ GST_DEBUG ("index found at offset %" G_GUINT64_FORMAT, offset);
-done:
- gst_buffer_unref (buf);
+ /* flush chunk header */
+ gst_adapter_flush (avi->adapter, 8);
+ /* read chunk payload */
+ buf = gst_adapter_take_buffer (avi->adapter, size);
+ if (!buf)
+ goto pull_failed;
+ /* advance offset */
+ offset += 8 + GST_ROUND_UP_2 (size);
- return res;
+ GST_DEBUG ("will parse index chunk size %u for tag %"
+ GST_FOURCC_FORMAT, GST_BUFFER_SIZE (buf), GST_FOURCC_ARGS (tag));
- /* ERRORS */
-pull_failed:
+ avi->offset = avi->first_movi_offset;
+ gst_avi_demux_parse_index (avi, buf);
+
+#ifndef GST_DISABLE_GST_DEBUG
+ /* debug our indexes */
{
- GST_DEBUG_OBJECT (avi, "pull_ranged returned %s", gst_flow_get_name (res));
- return res;
+ gint i;
+ GstAviStream *stream;
+
+ for (i = 0; i < avi->num_streams; i++) {
+ stream = &avi->stream[i];
+ GST_DEBUG_OBJECT (avi, "stream %u: %u frames, %" G_GINT64_FORMAT " bytes",
+ i, stream->idx_n, stream->total_bytes);
+ }
+ }
+#endif
+ return;
+
+ /* ERRORS */
+pull_failed:
+ {
+ GST_DEBUG_OBJECT (avi,
+ "taking data from adapter failed: pos=%" G_GUINT64_FORMAT " size=%u",
+ offset, size);
+ return;
+ }
+no_index:
+ {
+ GST_WARNING_OBJECT (avi,
+ "No index data (idx1) after movi chunk, but %" GST_FOURCC_FORMAT,
+ GST_FOURCC_ARGS (tag));
+ return;
+ }
+}
+
+/*
+ * gst_avi_demux_peek_tag:
+ *
+ * Returns the tag and size of the next chunk
+ */
+static GstFlowReturn
+gst_avi_demux_peek_tag (GstAviDemux * avi, guint64 offset, guint32 * tag,
+ guint * size)
+{
+ GstFlowReturn res = GST_FLOW_OK;
+ GstBuffer *buf = NULL;
+ guint bufsize;
+ guint8 *bufdata;
+
+ res = gst_pad_pull_range (avi->sinkpad, offset, 8, &buf);
+ if (res != GST_FLOW_OK)
+ goto pull_failed;
+
+ bufsize = GST_BUFFER_SIZE (buf);
+ if (bufsize != 8)
+ goto wrong_size;
+
+ bufdata = GST_BUFFER_DATA (buf);
+
+ *tag = GST_READ_UINT32_LE (bufdata);
+ *size = GST_READ_UINT32_LE (bufdata + 4);
+
+ GST_LOG_OBJECT (avi, "Tag[%" GST_FOURCC_FORMAT "] (size:%d) %"
+ G_GINT64_FORMAT " -- %" G_GINT64_FORMAT, GST_FOURCC_ARGS (*tag),
+ *size, offset + 8, offset + 8 + (gint64) * size);
+
+done:
+ gst_buffer_unref (buf);
+
+ return res;
+
+ /* ERRORS */
+pull_failed:
+ {
+ GST_DEBUG_OBJECT (avi, "pull_ranged returned %s", gst_flow_get_name (res));
+ return res;
}
wrong_size:
{
break;
}
}
- /* collect stats */
- gst_avi_demux_do_index_stats (avi);
- /* we have an index now */
- avi->have_index = TRUE;
+ /* collect stats */
+ avi->have_index = gst_avi_demux_do_index_stats (avi);
return TRUE;
gst_riff_strh *strh;
stream = &avi->stream[i];
- if (G_UNLIKELY (!stream || !(strh = stream->strh)))
+ if (G_UNLIKELY (!stream || !stream->idx_n || !(strh = stream->strh)))
continue;
/* get header duration for the stream */
/* fall back to header info to calculate a duration */
duration = hduration;
}
+ GST_INFO ("Setting duration of stream #%d to %" GST_TIME_FORMAT,
+ i, GST_TIME_ARGS (duration));
/* set duration for the stream */
stream->duration = duration;
/* find total duration */
- if (total == GST_CLOCK_TIME_NONE || duration > total)
+ if (total == GST_CLOCK_TIME_NONE ||
+ (GST_CLOCK_TIME_IS_VALID (duration) && duration > total))
total = duration;
}
return result;
}
+static void
+gst_avi_demux_check_seekability (GstAviDemux * avi)
+{
+ GstQuery *query;
+ gboolean seekable = FALSE;
+ gint64 start = -1, stop = -1;
+
+ query = gst_query_new_seeking (GST_FORMAT_BYTES);
+ if (!gst_pad_peer_query (avi->sinkpad, query)) {
+ GST_DEBUG_OBJECT (avi, "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 (avi, "doing duration query to fix up unset stop");
+ gst_pad_query_peer_duration (avi->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 (avi, "seekable but unknown start/stop -> disable");
+ seekable = FALSE;
+ }
+
+done:
+ GST_INFO_OBJECT (avi, "seekable: %d (%" G_GUINT64_FORMAT " - %"
+ G_GUINT64_FORMAT ")", seekable, start, stop);
+ avi->seekable = seekable;
+
+ gst_query_unref (query);
+}
+
/*
* Read AVI headers when streaming
*/
GstBuffer *buf = NULL, *sub = NULL;
guint offset = 4;
gint64 stop;
+ gint i;
+ GstTagList *tags = NULL;
GST_DEBUG ("Reading and parsing avi headers: %d", avi->header_state);
GST_DEBUG ("'hdrl' LIST tag found. Parsing next chunk");
/* the hdrl starts with a 'avih' header */
- if (!gst_riff_parse_chunk (GST_ELEMENT (avi), buf, &offset, &tag, &sub))
+ if (!gst_riff_parse_chunk (GST_ELEMENT_CAST (avi), buf, &offset, &tag,
+ &sub))
goto header_no_avih;
if (tag != GST_RIFF_TAG_avih)
goto header_no_avih;
- if (!gst_avi_demux_parse_avih (GST_ELEMENT (avi), sub, &avi->avih))
+ if (!gst_avi_demux_parse_avih (avi, sub, &avi->avih))
goto header_wrong_avih;
GST_DEBUG_OBJECT (avi, "AVI header ok, reading elemnts from header");
/* now, read the elements from the header until the end */
- while (gst_riff_parse_chunk (GST_ELEMENT (avi), buf, &offset, &tag,
+ while (gst_riff_parse_chunk (GST_ELEMENT_CAST (avi), buf, &offset, &tag,
&sub)) {
/* sub can be NULL on empty tags */
if (!sub)
GST_FOURCC_ARGS (GST_READ_UINT32_LE (GST_BUFFER_DATA
(sub))));
/* fall-through */
+ case GST_RIFF_TAG_JUNQ:
case GST_RIFF_TAG_JUNK:
goto next;
}
break;
+ case GST_RIFF_IDIT:
+ gst_avi_demux_parse_idit (avi, sub);
+ goto next;
default:
GST_WARNING_OBJECT (avi,
"Unknown off %d tag %" GST_FOURCC_FORMAT " in AVI header",
offset, GST_FOURCC_ARGS (tag));
/* fall-through */
+ case GST_RIFF_TAG_JUNQ:
case GST_RIFF_TAG_JUNK:
next:
/* move to next chunk */
switch (ltag) {
case GST_RIFF_LIST_movi:
gst_adapter_flush (avi->adapter, 12);
+ if (!avi->first_movi_offset)
+ avi->first_movi_offset = avi->offset;
avi->offset += 12;
+ avi->idx1_offset = avi->offset + size - 4;
goto skipping_done;
case GST_RIFF_LIST_INFO:
GST_DEBUG ("Found INFO chunk");
/* mind padding */
if (size & 1)
gst_adapter_flush (avi->adapter, 1);
- gst_riff_parse_info (GST_ELEMENT (avi), buf,
- &avi->globaltags);
+ gst_riff_parse_info (GST_ELEMENT_CAST (avi), buf, &tags);
+ if (tags) {
+ if (avi->globaltags) {
+ gst_tag_list_insert (avi->globaltags, tags,
+ GST_TAG_MERGE_REPLACE);
+ } else {
+ avi->globaltags = tags;
+ }
+ }
+ tags = NULL;
gst_buffer_unref (buf);
avi->offset += GST_ROUND_UP_2 (size) - 4;
GST_DEBUG ("Found movi chunk. Starting to stream data");
avi->state = GST_AVI_DEMUX_MOVI;
+ /* no indexes in push mode, but it still sets some variables */
+ gst_avi_demux_calculate_durations_from_index (avi);
+
+ gst_avi_demux_expose_streams (avi, TRUE);
+
+ /* prepare all streams for index 0 */
+ for (i = 0; i < avi->num_streams; i++)
+ avi->stream[i].current_entry = 0;
+
/* create initial NEWSEGMENT event */
if ((stop = avi->segment.stop) == GST_CLOCK_TIME_NONE)
stop = avi->segment.duration;
GST_DEBUG_OBJECT (avi, "segment stop %" G_GINT64_FORMAT, stop);
- if (avi->seek_event)
- gst_event_unref (avi->seek_event);
- avi->seek_event = gst_event_new_new_segment
- (FALSE, avi->segment.rate, GST_FORMAT_TIME,
+ if (avi->seg_event)
+ gst_event_unref (avi->seg_event);
+ avi->seg_event = gst_event_new_new_segment_full
+ (FALSE, avi->segment.rate, avi->segment.applied_rate, GST_FORMAT_TIME,
avi->segment.start, stop, avi->segment.time);
+ gst_avi_demux_check_seekability (avi);
+
/* at this point we know all the streams and we can signal the no more
* pads signal */
GST_DEBUG_OBJECT (avi, "signaling no more pads");
- gst_element_no_more_pads (GST_ELEMENT (avi));
+ gst_element_no_more_pads (GST_ELEMENT_CAST (avi));
return GST_FLOW_OK;
}
}
+static void
+gst_avi_demux_add_date_tag (GstAviDemux * avi, gint y, gint m, gint d,
+ gint h, gint min, gint s)
+{
+ GDate *date;
+ GstDateTime *dt;
+
+ date = g_date_new_dmy (d, m, y);
+ if (!g_date_valid (date)) {
+ /* bogus date */
+ GST_WARNING_OBJECT (avi, "Refusing to add invalid date %d-%d-%d", y, m, d);
+ g_date_free (date);
+ return;
+ }
+
+ dt = gst_date_time_new_local_time (y, m, d, h, min, s);
+
+ if (avi->globaltags == NULL)
+ avi->globaltags = gst_tag_list_new ();
+
+ gst_tag_list_add (avi->globaltags, GST_TAG_MERGE_REPLACE, GST_TAG_DATE, date,
+ NULL);
+ g_date_free (date);
+ if (dt) {
+ gst_tag_list_add (avi->globaltags, GST_TAG_MERGE_REPLACE, GST_TAG_DATE_TIME,
+ dt, NULL);
+ gst_date_time_unref (dt);
+ }
+}
+
+static void
+gst_avi_demux_parse_idit_nums_only (GstAviDemux * avi, gchar * data)
+{
+ gint y, m, d;
+ gint ret;
+
+ ret = sscanf (data, "%d:%d:%d", &y, &m, &d);
+ if (ret != 3) {
+ GST_WARNING_OBJECT (avi, "Failed to parse IDIT tag");
+ return;
+ }
+ gst_avi_demux_add_date_tag (avi, y, m, d, 0, 0, 0);
+}
+
+static gint
+get_month_num (gchar * data, guint size)
+{
+ if (g_ascii_strncasecmp (data, "jan", 3) == 0) {
+ return 1;
+ } else if (g_ascii_strncasecmp (data, "feb", 3) == 0) {
+ return 2;
+ } else if (g_ascii_strncasecmp (data, "mar", 3) == 0) {
+ return 3;
+ } else if (g_ascii_strncasecmp (data, "apr", 3) == 0) {
+ return 4;
+ } else if (g_ascii_strncasecmp (data, "may", 3) == 0) {
+ return 5;
+ } else if (g_ascii_strncasecmp (data, "jun", 3) == 0) {
+ return 6;
+ } else if (g_ascii_strncasecmp (data, "jul", 3) == 0) {
+ return 7;
+ } else if (g_ascii_strncasecmp (data, "aug", 3) == 0) {
+ return 8;
+ } else if (g_ascii_strncasecmp (data, "sep", 3) == 0) {
+ return 9;
+ } else if (g_ascii_strncasecmp (data, "oct", 3) == 0) {
+ return 10;
+ } else if (g_ascii_strncasecmp (data, "nov", 3) == 0) {
+ return 11;
+ } else if (g_ascii_strncasecmp (data, "dec", 3) == 0) {
+ return 12;
+ }
+
+ return 0;
+}
+
+static void
+gst_avi_demux_parse_idit_text (GstAviDemux * avi, gchar * data)
+{
+ gint year, month, day;
+ gint hour, min, sec;
+ gint ret;
+ gchar weekday[4];
+ gchar monthstr[4];
+
+ ret = sscanf (data, "%3s %3s %d %d:%d:%d %d", weekday, monthstr, &day, &hour,
+ &min, &sec, &year);
+ if (ret != 7) {
+ GST_WARNING_OBJECT (avi, "Failed to parse IDIT tag");
+ return;
+ }
+ month = get_month_num (monthstr, strlen (monthstr));
+ gst_avi_demux_add_date_tag (avi, year, month, day, hour, min, sec);
+}
+
+static void
+gst_avi_demux_parse_idit (GstAviDemux * avi, GstBuffer * buf)
+{
+ gchar *data = (gchar *) GST_BUFFER_DATA (buf);
+ guint size = GST_BUFFER_SIZE (buf);
+ gchar *safedata = NULL;
+
+ /*
+ * According to:
+ * http://www.eden-foundation.org/products/code/film_date_stamp/index.html
+ *
+ * This tag could be in one of the below formats
+ * 2005:08:17 11:42:43
+ * THU OCT 26 16:46:04 2006
+ * Mon Mar 3 09:44:56 2008
+ *
+ * FIXME: Our date tag doesn't include hours
+ */
+
+ /* skip eventual initial whitespace */
+ while (size > 0 && g_ascii_isspace (data[0])) {
+ data++;
+ size--;
+ }
+
+ if (size == 0) {
+ goto non_parsable;
+ }
+
+ /* make a safe copy to add a \0 to the end of the string */
+ safedata = g_strndup (data, size);
+
+ /* test if the first char is a alpha or a number */
+ if (g_ascii_isdigit (data[0])) {
+ gst_avi_demux_parse_idit_nums_only (avi, safedata);
+ g_free (safedata);
+ return;
+ } else if (g_ascii_isalpha (data[0])) {
+ gst_avi_demux_parse_idit_text (avi, safedata);
+ g_free (safedata);
+ return;
+ }
+
+ g_free (safedata);
+
+non_parsable:
+ GST_WARNING_OBJECT (avi, "IDIT tag has no parsable info");
+}
+
/*
* Read full AVI headers.
*/
gint64 stop;
GstElement *element = GST_ELEMENT_CAST (avi);
GstClockTime stamp;
+ GstTagList *tags = NULL;
stamp = gst_util_get_timestamp ();
goto no_avih;
else if (tag != GST_RIFF_TAG_avih)
goto no_avih;
- else if (!gst_avi_demux_parse_avih (element, sub, &avi->avih))
+ else if (!gst_avi_demux_parse_avih (avi, sub, &avi->avih))
goto invalid_avih;
GST_DEBUG_OBJECT (avi, "AVI header ok, reading elements from header");
gst_avi_demux_parse_odml (avi, sub);
sub = NULL;
break;
+ case GST_RIFF_LIST_INFO:
+ GST_BUFFER_DATA (sub) = data + 4;
+ GST_BUFFER_SIZE (sub) -= 4;
+ gst_riff_parse_info (element, sub, &tags);
+ if (tags) {
+ if (avi->globaltags) {
+ gst_tag_list_insert (avi->globaltags, tags,
+ GST_TAG_MERGE_REPLACE);
+ } else {
+ avi->globaltags = tags;
+ }
+ }
+ tags = NULL;
+ break;
default:
GST_WARNING_OBJECT (avi,
"Unknown list %" GST_FOURCC_FORMAT " in AVI header",
GST_MEMDUMP_OBJECT (avi, "Unknown list", GST_BUFFER_DATA (sub),
GST_BUFFER_SIZE (sub));
/* fall-through */
+ case GST_RIFF_TAG_JUNQ:
case GST_RIFF_TAG_JUNK:
goto next;
}
break;
}
+ case GST_RIFF_IDIT:
+ gst_avi_demux_parse_idit (avi, sub);
+ goto next;
default:
GST_WARNING_OBJECT (avi,
"Unknown tag %" GST_FOURCC_FORMAT " in AVI header at off %d",
GST_MEMDUMP_OBJECT (avi, "Unknown tag", GST_BUFFER_DATA (sub),
GST_BUFFER_SIZE (sub));
/* fall-through */
+ case GST_RIFF_TAG_JUNQ:
case GST_RIFF_TAG_JUNK:
next:
if (sub)
}
sub = gst_buffer_create_sub (buf, 4, GST_BUFFER_SIZE (buf) - 4);
- gst_riff_parse_info (element, sub, &avi->globaltags);
+ gst_riff_parse_info (element, sub, &tags);
+ if (tags) {
+ if (avi->globaltags) {
+ gst_tag_list_insert (avi->globaltags, tags,
+ GST_TAG_MERGE_REPLACE);
+ } else {
+ avi->globaltags = tags;
+ }
+ }
+ tags = NULL;
if (sub) {
gst_buffer_unref (sub);
sub = NULL;
/* Fall-through */
case GST_MAKE_FOURCC ('J', 'U', 'N', 'Q'):
case GST_MAKE_FOURCC ('J', 'U', 'N', 'K'):
+ /* Only get buffer for debugging if the memdump is needed */
+ if (gst_debug_category_get_threshold (GST_CAT_DEFAULT) >= 9) {
+ res = gst_pad_pull_range (avi->sinkpad, avi->offset, size, &buf);
+ if (res != GST_FLOW_OK) {
+ GST_DEBUG_OBJECT (avi, "couldn't read INFO chunk");
+ goto pull_range_failed;
+ }
+ GST_MEMDUMP ("Junk", GST_BUFFER_DATA (buf), GST_BUFFER_SIZE (buf));
+ gst_buffer_unref (buf);
+ }
avi->offset += 8 + GST_ROUND_UP_2 (size);
break;
}
/* use the indexes now to construct nice durations */
gst_avi_demux_calculate_durations_from_index (avi);
+ gst_avi_demux_expose_streams (avi, FALSE);
+
/* create initial NEWSEGMENT event */
if ((stop = avi->segment.stop) == GST_CLOCK_TIME_NONE)
stop = avi->segment.duration;
/* do initial seek to the default segment values */
gst_avi_demux_do_seek (avi, &avi->segment);
+
/* prepare initial segment */
- if (avi->seek_event)
- gst_event_unref (avi->seek_event);
- avi->seek_event = gst_event_new_new_segment
- (FALSE, avi->segment.rate, GST_FORMAT_TIME,
+ if (avi->seg_event)
+ gst_event_unref (avi->seg_event);
+ avi->seg_event = gst_event_new_new_segment_full
+ (FALSE, avi->segment.rate, avi->segment.applied_rate, GST_FORMAT_TIME,
avi->segment.start, stop, avi->segment.time);
stamp = gst_util_get_timestamp () - stamp;
- GST_DEBUG_OBJECT (avi, "pulling header %" GST_TIME_FORMAT,
+ GST_DEBUG_OBJECT (avi, "pulling header took %" GST_TIME_FORMAT,
GST_TIME_ARGS (stamp));
/* at this point we know all the streams and we can signal the no more
GST_TIME_ARGS (stream->current_timestamp),
GST_TIME_ARGS (stream->current_ts_end), stream->current_offset,
stream->current_offset_end);
+
+ GST_DEBUG_OBJECT (avi, "Seeking to offset %" G_GUINT64_FORMAT,
+ stream->index[index].offset);
}
/*
GstAviStream *stream;
seek_time = segment->last_stop;
- keyframe = !!(segment->flags & GST_SEEK_FLAG_KEY_UNIT);
+ keyframe = ! !(segment->flags & GST_SEEK_FLAG_KEY_UNIT);
GST_DEBUG_OBJECT (avi, "seek to: %" GST_TIME_FORMAT
" keyframe seeking:%d", GST_TIME_ARGS (seek_time), keyframe);
/* FIXME, this code assumes the main stream with keyframes is stream 0,
* which is mostly correct... */
- stream = &avi->stream[0];
+ stream = &avi->stream[avi->main_stream];
/* get the entry index for the requested position */
index = gst_avi_demux_index_for_time (avi, stream, seek_time);
GstAviStream *ostream;
ostream = &avi->stream[i];
- if (ostream == stream)
+ if ((ostream == stream) || (ostream->index == NULL))
continue;
/* get the entry index for the requested position */
}
/*
- * Handle seek event.
+ * Handle seek event in pull mode.
*/
static gboolean
gst_avi_demux_handle_seek (GstAviDemux * avi, GstPad * pad, GstEvent * event)
* actually never fails. */
gst_avi_demux_do_seek (avi, &seeksegment);
+ gst_event_replace (&avi->close_seg_event, NULL);
if (flush) {
GstEvent *fevent = gst_event_new_flush_stop ();
GST_DEBUG_OBJECT (avi, "sending flush stop");
gst_avi_demux_push_event (avi, gst_event_ref (fevent));
gst_pad_push_event (avi->sinkpad, fevent);
-
- /* reset the last flow and mark discont, FLUSH is always DISCONT */
- for (i = 0; i < avi->num_streams; i++) {
- avi->stream[i].last_flow = GST_FLOW_OK;
- avi->stream[i].discont = TRUE;
- }
} else if (avi->segment_running) {
- GstEvent *seg;
-
/* we are running the current segment and doing a non-flushing seek,
* close the segment first based on the last_stop. */
GST_DEBUG_OBJECT (avi, "closing running segment %" G_GINT64_FORMAT
" to %" G_GINT64_FORMAT, avi->segment.start, avi->segment.last_stop);
- seg = gst_event_new_new_segment (TRUE,
- avi->segment.rate, avi->segment.format,
+ avi->close_seg_event = gst_event_new_new_segment_full (TRUE,
+ avi->segment.rate, avi->segment.applied_rate, avi->segment.format,
avi->segment.start, avi->segment.last_stop, avi->segment.time);
- gst_avi_demux_push_event (avi, seg);
}
/* now update the real segment info */
/* post the SEGMENT_START message when we do segmented playback */
if (avi->segment.flags & GST_SEEK_FLAG_SEGMENT) {
- gst_element_post_message (GST_ELEMENT (avi),
- gst_message_new_segment_start (GST_OBJECT (avi),
+ gst_element_post_message (GST_ELEMENT_CAST (avi),
+ gst_message_new_segment_start (GST_OBJECT_CAST (avi),
avi->segment.format, avi->segment.last_stop));
}
stop = avi->segment.duration;
/* queue the segment event for the streaming thread. */
- if (avi->seek_event)
- gst_event_unref (avi->seek_event);
+ if (avi->seg_event)
+ gst_event_unref (avi->seg_event);
if (avi->segment.rate > 0.0) {
/* forwards goes from last_stop to stop */
- avi->seek_event = gst_event_new_new_segment (FALSE,
- avi->segment.rate, avi->segment.format,
+ avi->seg_event = gst_event_new_new_segment_full (FALSE,
+ avi->segment.rate, avi->segment.applied_rate, avi->segment.format,
avi->segment.last_stop, stop, avi->segment.time);
} else {
/* reverse goes from start to last_stop */
- avi->seek_event = gst_event_new_new_segment (FALSE,
- avi->segment.rate, avi->segment.format,
+ avi->seg_event = gst_event_new_new_segment_full (FALSE,
+ avi->segment.rate, avi->segment.applied_rate, avi->segment.format,
avi->segment.start, avi->segment.last_stop, avi->segment.time);
}
gst_pad_start_task (avi->sinkpad, (GstTaskFunction) gst_avi_demux_loop,
avi->sinkpad);
}
+ /* reset the last flow and mark discont, seek is always DISCONT */
+ for (i = 0; i < avi->num_streams; i++) {
+ GST_DEBUG_OBJECT (avi, "marking DISCONT");
+ avi->stream[i].last_flow = GST_FLOW_OK;
+ avi->stream[i].discont = TRUE;
+ }
GST_PAD_STREAM_UNLOCK (avi->sinkpad);
return TRUE;
}
/*
+ * Handle seek event in push mode.
+ */
+static gboolean
+avi_demux_handle_seek_push (GstAviDemux * avi, GstPad * pad, GstEvent * event)
+{
+ gdouble rate;
+ GstFormat format;
+ GstSeekFlags flags;
+ GstSeekType cur_type = GST_SEEK_TYPE_NONE, stop_type;
+ gint64 cur, stop;
+ gboolean keyframe;
+ GstAviStream *stream;
+ guint index;
+ guint n, str_num;
+ guint64 min_offset;
+ GstSegment seeksegment;
+ gboolean update;
+
+ /* check we have the index */
+ if (!avi->have_index) {
+ GST_DEBUG_OBJECT (avi, "no seek index built, seek aborted.");
+ return FALSE;
+ } else {
+ GST_DEBUG_OBJECT (avi, "doing push-based seek with event");
+ }
+
+ gst_event_parse_seek (event, &rate, &format, &flags,
+ &cur_type, &cur, &stop_type, &stop);
+
+ if (format != GST_FORMAT_TIME) {
+ GstFormat fmt = GST_FORMAT_TIME;
+ gboolean res = TRUE;
+
+ if (cur_type != GST_SEEK_TYPE_NONE)
+ res = gst_pad_query_convert (pad, format, cur, &fmt, &cur);
+ if (res && stop_type != GST_SEEK_TYPE_NONE)
+ res = gst_pad_query_convert (pad, format, stop, &fmt, &stop);
+ if (!res) {
+ GST_DEBUG_OBJECT (avi, "unsupported format given, seek aborted.");
+ return FALSE;
+ }
+
+ format = fmt;
+ }
+
+ /* let gst_segment handle any tricky stuff */
+ GST_DEBUG_OBJECT (avi, "configuring seek");
+ memcpy (&seeksegment, &avi->segment, sizeof (GstSegment));
+ gst_segment_set_seek (&seeksegment, rate, format, flags,
+ cur_type, cur, stop_type, stop, &update);
+
+ keyframe = ! !(flags & GST_SEEK_FLAG_KEY_UNIT);
+ cur = seeksegment.last_stop;
+
+ GST_DEBUG_OBJECT (avi,
+ "Seek requested: ts %" GST_TIME_FORMAT " stop %" GST_TIME_FORMAT
+ ", kf %u, rate %lf", GST_TIME_ARGS (cur), GST_TIME_ARGS (stop), keyframe,
+ rate);
+
+ if (rate < 0) {
+ GST_DEBUG_OBJECT (avi, "negative rate seek not supported in push mode");
+ return FALSE;
+ }
+
+ /* FIXME, this code assumes the main stream with keyframes is stream 0,
+ * which is mostly correct... */
+ str_num = avi->main_stream;
+ stream = &avi->stream[str_num];
+
+ /* get the entry index for the requested position */
+ index = gst_avi_demux_index_for_time (avi, stream, cur);
+ GST_DEBUG_OBJECT (avi, "str %u: Found entry %u for %" GST_TIME_FORMAT,
+ str_num, index, GST_TIME_ARGS (cur));
+
+ /* check if we are already on a keyframe */
+ if (!ENTRY_IS_KEYFRAME (&stream->index[index])) {
+ GST_DEBUG_OBJECT (avi, "Entry is not a keyframe - searching back");
+ /* now go to the previous keyframe, this is where we should start
+ * decoding from. */
+ index = gst_avi_demux_index_prev (avi, stream, index, TRUE);
+ GST_DEBUG_OBJECT (avi, "Found previous keyframe at %u", index);
+ }
+
+ gst_avi_demux_get_buffer_info (avi, stream, index,
+ &stream->current_timestamp, &stream->current_ts_end,
+ &stream->current_offset, &stream->current_offset_end);
+
+ /* re-use cur to be the timestamp of the seek as it _will_ be */
+ cur = stream->current_timestamp;
+
+ min_offset = stream->index[index].offset;
+ avi->seek_kf_offset = min_offset - 8;
+
+ GST_DEBUG_OBJECT (avi,
+ "Seek to: ts %" GST_TIME_FORMAT " (on str %u, idx %u, offset %"
+ G_GUINT64_FORMAT ")", GST_TIME_ARGS (stream->current_timestamp), str_num,
+ index, min_offset);
+
+ for (n = 0; n < avi->num_streams; n++) {
+ GstAviStream *str = &avi->stream[n];
+ guint idx;
+
+ if (n == avi->main_stream)
+ continue;
+
+ /* get the entry index for the requested position */
+ idx = gst_avi_demux_index_for_time (avi, str, cur);
+ GST_DEBUG_OBJECT (avi, "str %u: Found entry %u for %" GST_TIME_FORMAT, n,
+ idx, GST_TIME_ARGS (cur));
+
+ /* check if we are already on a keyframe */
+ if (!ENTRY_IS_KEYFRAME (&str->index[idx])) {
+ GST_DEBUG_OBJECT (avi, "Entry is not a keyframe - searching back");
+ /* now go to the previous keyframe, this is where we should start
+ * decoding from. */
+ idx = gst_avi_demux_index_prev (avi, str, idx, TRUE);
+ GST_DEBUG_OBJECT (avi, "Found previous keyframe at %u", idx);
+ }
+
+ gst_avi_demux_get_buffer_info (avi, str, idx,
+ &str->current_timestamp, &str->current_ts_end,
+ &str->current_offset, &str->current_offset_end);
+
+ if (str->index[idx].offset < min_offset) {
+ min_offset = str->index[idx].offset;
+ GST_DEBUG_OBJECT (avi,
+ "Found an earlier offset at %" G_GUINT64_FORMAT ", str %u",
+ min_offset, n);
+ str_num = n;
+ stream = str;
+ index = idx;
+ }
+ }
+
+ GST_DEBUG_OBJECT (avi,
+ "Seek performed: str %u, offset %" G_GUINT64_FORMAT ", idx %u, ts %"
+ GST_TIME_FORMAT ", ts_end %" GST_TIME_FORMAT ", off %" G_GUINT64_FORMAT
+ ", off_end %" G_GUINT64_FORMAT, str_num, min_offset, index,
+ GST_TIME_ARGS (stream->current_timestamp),
+ GST_TIME_ARGS (stream->current_ts_end), stream->current_offset,
+ stream->current_offset_end);
+
+ /* index data refers to data, not chunk header (for pull mode convenience) */
+ min_offset -= 8;
+ GST_DEBUG_OBJECT (avi, "seeking to chunk at offset %" G_GUINT64_FORMAT,
+ min_offset);
+
+ if (!perform_seek_to_offset (avi, min_offset)) {
+ GST_DEBUG_OBJECT (avi, "seek event failed!");
+ return FALSE;
+ }
+
+ return TRUE;
+}
+
+/*
+ * Handle whether we can perform the seek event or if we have to let the chain
+ * function handle seeks to build the seek indexes first.
+ */
+static gboolean
+gst_avi_demux_handle_seek_push (GstAviDemux * avi, GstPad * pad,
+ GstEvent * event)
+{
+ /* check for having parsed index already */
+ if (!avi->have_index) {
+ guint64 offset = 0;
+ gboolean building_index;
+
+ GST_OBJECT_LOCK (avi);
+ /* handle the seek event in the chain function */
+ avi->state = GST_AVI_DEMUX_SEEK;
+
+ /* copy the event */
+ if (avi->seek_event)
+ gst_event_unref (avi->seek_event);
+ avi->seek_event = gst_event_ref (event);
+
+ /* set the building_index flag so that only one thread can setup the
+ * structures for index seeking. */
+ building_index = avi->building_index;
+ if (!building_index) {
+ avi->building_index = TRUE;
+ if (avi->stream[0].indexes) {
+ avi->odml_stream = 0;
+ avi->odml_subidxs = avi->stream[avi->odml_stream].indexes;
+ offset = avi->odml_subidxs[0];
+ } else {
+ offset = avi->idx1_offset;
+ }
+ }
+ GST_OBJECT_UNLOCK (avi);
+
+ if (!building_index) {
+ /* seek to the first subindex or legacy index */
+ GST_INFO_OBJECT (avi,
+ "Seeking to legacy index/first subindex at %" G_GUINT64_FORMAT,
+ offset);
+ return perform_seek_to_offset (avi, offset);
+ }
+
+ /* FIXME: we have to always return true so that we don't block the seek
+ * thread.
+ * Note: maybe it is OK to return true if we're still building the index */
+ return TRUE;
+ }
+
+ return avi_demux_handle_seek_push (avi, pad, event);
+}
+
+/*
* Helper for gst_avi_demux_invert()
*/
static inline void
return buf;
}
+static void
+gst_avi_demux_add_assoc (GstAviDemux * avi, GstAviStream * stream,
+ GstClockTime timestamp, guint64 offset, gboolean keyframe)
+{
+ /* do not add indefinitely for open-ended streaming */
+ if (G_UNLIKELY (avi->element_index && avi->seekable)) {
+ GST_LOG_OBJECT (avi, "adding association %" GST_TIME_FORMAT "-> %"
+ G_GUINT64_FORMAT, GST_TIME_ARGS (timestamp), offset);
+ gst_index_add_association (avi->element_index, avi->index_id,
+ keyframe ? GST_ASSOCIATION_FLAG_KEY_UNIT : GST_ASSOCIATION_FLAG_NONE,
+ GST_FORMAT_TIME, timestamp, GST_FORMAT_BYTES, offset, NULL);
+ /* well, current_total determines TIME and entry DEFAULT (frame #) ... */
+ gst_index_add_association (avi->element_index, stream->index_id,
+ GST_ASSOCIATION_FLAG_NONE,
+ GST_FORMAT_TIME, stream->current_total, GST_FORMAT_BYTES, offset,
+ GST_FORMAT_DEFAULT, stream->current_entry, NULL);
+ }
+}
+
/*
* Returns the aggregated GstFlowReturn.
*/
GstFlowReturn ret)
{
guint i;
+ gboolean unexpected = FALSE, not_linked = TRUE;
/* store the value */
stream->last_flow = ret;
- /* any other error that is not-linked can be returned right away */
- if (G_UNLIKELY (ret != GST_FLOW_NOT_LINKED))
+ /* any other error that is not-linked or eos can be returned right away */
+ if (G_LIKELY (ret != GST_FLOW_UNEXPECTED && ret != GST_FLOW_NOT_LINKED))
goto done;
/* only return NOT_LINKED if all other pads returned NOT_LINKED */
GstAviStream *ostream = &avi->stream[i];
ret = ostream->last_flow;
- /* some other return value (must be SUCCESS but we can return
- * other values as well) */
- if (G_UNLIKELY (ret != GST_FLOW_NOT_LINKED))
+ /* no unexpected or unlinked, return */
+ if (G_LIKELY (ret != GST_FLOW_UNEXPECTED && ret != GST_FLOW_NOT_LINKED))
goto done;
+
+ /* we check to see if we have at least 1 unexpected or all unlinked */
+ unexpected |= (ret == GST_FLOW_UNEXPECTED);
+ not_linked &= (ret == GST_FLOW_NOT_LINKED);
}
- /* if we get here, all other pads were unlinked and we return
- * NOT_LINKED then */
+ /* when we get here, we all have unlinked or unexpected */
+ if (not_linked)
+ ret = GST_FLOW_NOT_LINKED;
+ else if (unexpected)
+ ret = GST_FLOW_UNEXPECTED;
done:
GST_LOG_OBJECT (avi, "combined %s to return %s",
gst_flow_get_name (stream->last_flow), gst_flow_get_name (ret));
GstAviStream *stream;
stream = &avi->stream[i];
+
+ /* ignore streams that finished */
+ if (stream->last_flow == GST_FLOW_UNEXPECTED)
+ continue;
+
position = stream->current_timestamp;
/* position of -1 is EOS */
/* mark discont when pending */
if (stream->discont) {
+ GST_DEBUG_OBJECT (avi, "setting DISCONT flag");
GST_BUFFER_FLAG_SET (buf, GST_BUFFER_FLAG_DISCONT);
stream->discont = FALSE;
}
+ gst_avi_demux_add_assoc (avi, stream, timestamp, offset, keyframe);
+
gst_buffer_set_caps (buf, GST_PAD_CAPS (stream->pad));
/* update current position in the segment */
" setting EOS (%" GST_TIME_FORMAT " > %" GST_TIME_FORMAT ")",
GST_TIME_ARGS (timestamp), GST_TIME_ARGS (avi->segment.stop));
ret = GST_FLOW_UNEXPECTED;
- goto beach;
+ /* move to next stream */
+ goto next;
}
pull_failed:
{
if (G_UNLIKELY (avi->have_eos)) {
/* Clean adapter, we're done */
gst_adapter_clear (avi->adapter);
- return res;
+ return GST_FLOW_UNEXPECTED;
+ }
+
+ if (G_UNLIKELY (avi->todrop)) {
+ guint drop;
+
+ if ((drop = gst_adapter_available (avi->adapter))) {
+ if (drop > avi->todrop)
+ drop = avi->todrop;
+ GST_DEBUG_OBJECT (avi, "Dropping %d bytes", drop);
+ gst_adapter_flush (avi->adapter, drop);
+ avi->todrop -= drop;
+ avi->offset += drop;
+ }
}
/* Iterate until need more data, so adapter won't grow too much */
gst_adapter_flush (avi->adapter, 8 + GST_ROUND_UP_2 (size));
}
return GST_FLOW_OK;
+ } else if (tag == GST_RIFF_TAG_RIFF) {
+ /* RIFF tags can appear in ODML files, just jump over them */
+ if (gst_adapter_available (avi->adapter) >= 12) {
+ GST_DEBUG ("Found RIFF tag, skipping RIFF header");
+ gst_adapter_flush (avi->adapter, 12);
+ continue;
+ }
+ return GST_FLOW_OK;
} else if (tag == GST_RIFF_TAG_idx1) {
- GST_DEBUG ("Found index tag, stream done");
- avi->have_eos = TRUE;
- return GST_FLOW_UNEXPECTED;
+ GST_DEBUG ("Found index tag");
+ if (gst_avi_demux_peek_chunk (avi, &tag, &size) || size == 0) {
+ /* accept 0 size buffer here */
+ avi->abort_buffering = FALSE;
+ GST_DEBUG (" skipping %d bytes for now", size);
+ gst_adapter_flush (avi->adapter, 8 + GST_ROUND_UP_2 (size));
+ }
+ return GST_FLOW_OK;
} else if (tag == GST_RIFF_TAG_LIST) {
/* movi chunks might be grouped in rec list */
if (gst_adapter_available (avi->adapter) >= 12) {
continue;
}
return GST_FLOW_OK;
- } else if (tag == GST_RIFF_TAG_JUNK) {
+ } else if (tag == GST_RIFF_TAG_JUNK || tag == GST_RIFF_TAG_JUNQ) {
/* rec list might contain JUNK chunks */
GST_DEBUG ("Found JUNK tag");
if (gst_avi_demux_peek_chunk (avi, &tag, &size) || size == 0) {
* through the whole file */
if (avi->abort_buffering) {
avi->abort_buffering = FALSE;
- gst_adapter_flush (avi->adapter, 8);
+ if (size) {
+ gst_adapter_flush (avi->adapter, 8);
+ return GST_FLOW_OK;
+ }
+ } else {
+ return GST_FLOW_OK;
}
- return GST_FLOW_OK;
}
GST_DEBUG ("chunk ID %" GST_FOURCC_FORMAT ", size %u",
GST_FOURCC_ARGS (tag), size);
} else {
GstAviStream *stream;
GstClockTime next_ts = 0;
- GstBuffer *buf;
+ GstBuffer *buf = NULL;
+ guint64 offset;
+ gboolean saw_desired_kf = stream_nr != avi->main_stream
+ || avi->offset >= avi->seek_kf_offset;
+
+ if (stream_nr == avi->main_stream && avi->offset == avi->seek_kf_offset) {
+ GST_DEBUG_OBJECT (avi, "Desired keyframe reached");
+ avi->seek_kf_offset = 0;
+ }
- gst_adapter_flush (avi->adapter, 8);
+ if (saw_desired_kf) {
+ gst_adapter_flush (avi->adapter, 8);
+ /* get buffer */
+ if (size) {
+ buf = gst_adapter_take_buffer (avi->adapter, GST_ROUND_UP_2 (size));
+ /* patch the size */
+ GST_BUFFER_SIZE (buf) = size;
+ } else {
+ buf = NULL;
+ }
+ } else {
+ GST_DEBUG_OBJECT (avi,
+ "Desired keyframe not yet reached, flushing chunk");
+ gst_adapter_flush (avi->adapter, 8 + GST_ROUND_UP_2 (size));
+ }
- /* get buffer */
- buf = gst_adapter_take_buffer (avi->adapter, GST_ROUND_UP_2 (size));
- /* patch the size */
- GST_BUFFER_SIZE (buf) = size;
+ offset = avi->offset;
avi->offset += 8 + GST_ROUND_UP_2 (size);
stream = &avi->stream[stream_nr];
if (G_UNLIKELY (!stream->pad)) {
GST_WARNING_OBJECT (avi, "no pad for stream ID %" GST_FOURCC_FORMAT,
GST_FOURCC_ARGS (tag));
- gst_buffer_unref (buf);
+ if (buf)
+ gst_buffer_unref (buf);
} else {
- GstClockTime dur_ts = 0;
-
/* get time of this buffer */
gst_pad_query_position (stream->pad, &format, (gint64 *) & next_ts);
if (G_UNLIKELY (format != GST_FORMAT_TIME))
goto wrong_format;
+ gst_avi_demux_add_assoc (avi, stream, next_ts, offset, FALSE);
+
/* increment our positions */
stream->current_entry++;
stream->current_total += size;
- /* invert the picture if needed */
- buf = gst_avi_demux_invert (stream, buf);
+ /* update current position in the segment */
+ gst_segment_set_last_stop (&avi->segment, GST_FORMAT_TIME, next_ts);
- gst_pad_query_position (stream->pad, &format, (gint64 *) & dur_ts);
- if (G_UNLIKELY (format != GST_FORMAT_TIME))
- goto wrong_format;
+ if (saw_desired_kf && buf) {
+ GstClockTime dur_ts = 0;
- GST_BUFFER_TIMESTAMP (buf) = next_ts;
- GST_BUFFER_DURATION (buf) = dur_ts - next_ts;
- if (stream->strh->type == GST_RIFF_FCC_vids) {
- GST_BUFFER_OFFSET (buf) = stream->current_entry - 1;
- GST_BUFFER_OFFSET_END (buf) = stream->current_entry;
- } else {
- GST_BUFFER_OFFSET (buf) = GST_BUFFER_OFFSET_NONE;
- GST_BUFFER_OFFSET_END (buf) = GST_BUFFER_OFFSET_NONE;
- }
+ /* invert the picture if needed */
+ buf = gst_avi_demux_invert (stream, buf);
- gst_buffer_set_caps (buf, GST_PAD_CAPS (stream->pad));
- GST_DEBUG_OBJECT (avi,
- "Pushing buffer with time=%" GST_TIME_FORMAT ", duration %"
- GST_TIME_FORMAT ", offset %" G_GUINT64_FORMAT
- " and size %d over pad %s", GST_TIME_ARGS (next_ts),
- GST_TIME_ARGS (GST_BUFFER_TIMESTAMP (buf)), GST_BUFFER_OFFSET (buf),
- size, GST_PAD_NAME (stream->pad));
+ gst_pad_query_position (stream->pad, &format, (gint64 *) & dur_ts);
+ if (G_UNLIKELY (format != GST_FORMAT_TIME))
+ goto wrong_format;
- /* update current position in the segment */
- gst_segment_set_last_stop (&avi->segment, GST_FORMAT_TIME, next_ts);
-
- /* mark discont when pending */
- if (G_UNLIKELY (stream->discont)) {
- GST_BUFFER_FLAG_SET (buf, GST_BUFFER_FLAG_DISCONT);
- stream->discont = FALSE;
- }
- res = gst_pad_push (stream->pad, buf);
+ GST_BUFFER_TIMESTAMP (buf) = next_ts;
+ GST_BUFFER_DURATION (buf) = dur_ts - next_ts;
+ if (stream->strh->type == GST_RIFF_FCC_vids) {
+ GST_BUFFER_OFFSET (buf) = stream->current_entry - 1;
+ GST_BUFFER_OFFSET_END (buf) = stream->current_entry;
+ } else {
+ GST_BUFFER_OFFSET (buf) = GST_BUFFER_OFFSET_NONE;
+ GST_BUFFER_OFFSET_END (buf) = GST_BUFFER_OFFSET_NONE;
+ }
- /* combine flows */
- res = gst_avi_demux_combine_flows (avi, stream, res);
- if (G_UNLIKELY (res != GST_FLOW_OK)) {
- GST_DEBUG ("Push failed; %s", gst_flow_get_name (res));
- return res;
+ gst_buffer_set_caps (buf, GST_PAD_CAPS (stream->pad));
+ GST_DEBUG_OBJECT (avi,
+ "Pushing buffer with time=%" GST_TIME_FORMAT ", duration %"
+ GST_TIME_FORMAT ", offset %" G_GUINT64_FORMAT
+ " and size %d over pad %s", GST_TIME_ARGS (next_ts),
+ GST_TIME_ARGS (GST_BUFFER_DURATION (buf)),
+ GST_BUFFER_OFFSET (buf), size, GST_PAD_NAME (stream->pad));
+
+ /* mark discont when pending */
+ if (G_UNLIKELY (stream->discont)) {
+ GST_DEBUG_OBJECT (avi, "Setting DISCONT");
+ GST_BUFFER_FLAG_SET (buf, GST_BUFFER_FLAG_DISCONT);
+ stream->discont = FALSE;
+ }
+ res = gst_pad_push (stream->pad, buf);
+ buf = NULL;
+
+ /* combine flows */
+ res = gst_avi_demux_combine_flows (avi, stream, res);
+ if (G_UNLIKELY (res != GST_FLOW_OK)) {
+ GST_DEBUG ("Push failed; %s", gst_flow_get_name (res));
+ return res;
+ }
}
}
}
avi->state = GST_AVI_DEMUX_MOVI;
break;
case GST_AVI_DEMUX_MOVI:
- if (G_UNLIKELY (avi->seek_event)) {
- gst_avi_demux_push_event (avi, avi->seek_event);
- avi->seek_event = NULL;
+ if (G_UNLIKELY (avi->close_seg_event)) {
+ gst_avi_demux_push_event (avi, avi->close_seg_event);
+ avi->close_seg_event = NULL;
+ }
+ if (G_UNLIKELY (avi->seg_event)) {
+ gst_avi_demux_push_event (avi, avi->seg_event);
+ avi->seg_event = NULL;
}
if (G_UNLIKELY (avi->got_tags)) {
push_tag_lists (avi);
return;
/* ERRORS */
-pause:
- GST_LOG_OBJECT (avi, "pausing task, reason %s", gst_flow_get_name (res));
- avi->segment_running = FALSE;
- gst_pad_pause_task (avi->sinkpad);
+pause:{
+
+ gboolean push_eos = FALSE;
+ GST_LOG_OBJECT (avi, "pausing task, reason %s", gst_flow_get_name (res));
+ avi->segment_running = FALSE;
+ gst_pad_pause_task (avi->sinkpad);
- if (GST_FLOW_IS_FATAL (res) || (res == GST_FLOW_NOT_LINKED)) {
- gboolean push_eos = TRUE;
if (res == GST_FLOW_UNEXPECTED) {
/* handle end-of-stream/segment */
GST_INFO_OBJECT (avi, "sending segment_done");
gst_element_post_message
- (GST_ELEMENT (avi),
- gst_message_new_segment_done (GST_OBJECT (avi), GST_FORMAT_TIME,
- stop));
- push_eos = FALSE;
+ (GST_ELEMENT_CAST (avi),
+ gst_message_new_segment_done (GST_OBJECT_CAST (avi),
+ GST_FORMAT_TIME, stop));
+ } else {
+ push_eos = TRUE;
}
- } else {
- /* for fatal errors we post an error message */
+ } else if (res == GST_FLOW_NOT_LINKED || res < 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 (avi, STREAM, FAILED,
(_("Internal data stream error.")),
("streaming stopped, reason %s", gst_flow_get_name (res)));
+ push_eos = TRUE;
}
if (push_eos) {
GST_INFO_OBJECT (avi, "sending eos");
{
GstFlowReturn res;
GstAviDemux *avi = GST_AVI_DEMUX (GST_PAD_PARENT (pad));
+ gint i;
+
+ if (GST_BUFFER_IS_DISCONT (buf)) {
+ GST_DEBUG_OBJECT (avi, "got DISCONT");
+ gst_adapter_clear (avi->adapter);
+ /* mark all streams DISCONT */
+ for (i = 0; i < avi->num_streams; i++)
+ avi->stream[i].discont = TRUE;
+ }
GST_DEBUG ("Store %d bytes in adapter", GST_BUFFER_SIZE (buf));
gst_adapter_push (avi->adapter, buf);
}
break;
case GST_AVI_DEMUX_MOVI:
- if (G_UNLIKELY (avi->seek_event)) {
- gst_avi_demux_push_event (avi, avi->seek_event);
- avi->seek_event = NULL;
+ if (G_UNLIKELY (avi->close_seg_event)) {
+ gst_avi_demux_push_event (avi, avi->close_seg_event);
+ avi->close_seg_event = NULL;
+ }
+ if (G_UNLIKELY (avi->seg_event)) {
+ gst_avi_demux_push_event (avi, avi->seg_event);
+ avi->seg_event = NULL;
}
if (G_UNLIKELY (avi->got_tags)) {
push_tag_lists (avi);
}
res = gst_avi_demux_stream_data (avi);
break;
+ case GST_AVI_DEMUX_SEEK:
+ {
+ GstEvent *event;
+
+ res = GST_FLOW_OK;
+
+ /* obtain and parse indexes */
+ if (avi->stream[0].indexes && !gst_avi_demux_read_subindexes_push (avi))
+ /* seek in subindex read function failed */
+ goto index_failed;
+
+ if (!avi->stream[0].indexes && !avi->have_index
+ && avi->avih->flags & GST_RIFF_AVIH_HASINDEX)
+ gst_avi_demux_stream_index_push (avi);
+
+ if (avi->have_index) {
+ /* use the indexes now to construct nice durations */
+ gst_avi_demux_calculate_durations_from_index (avi);
+ } else {
+ /* still parsing indexes */
+ break;
+ }
+
+ GST_OBJECT_LOCK (avi);
+ event = avi->seek_event;
+ avi->seek_event = NULL;
+ GST_OBJECT_UNLOCK (avi);
+
+ /* calculate and perform seek */
+ if (!avi_demux_handle_seek_push (avi, avi->sinkpad, event))
+ goto seek_failed;
+
+ gst_event_unref (event);
+ avi->state = GST_AVI_DEMUX_MOVI;
+ break;
+ }
default:
GST_ELEMENT_ERROR (avi, STREAM, FAILED, (NULL),
("Illegal internal state"));
GST_DEBUG_OBJECT (avi, "state: %d res:%s", avi->state,
gst_flow_get_name (res));
- if (G_UNLIKELY (avi->abort_buffering)) {
+ if (G_UNLIKELY (avi->abort_buffering))
+ goto abort_buffering;
+
+ return res;
+
+ /* ERRORS */
+index_failed:
+ {
+ GST_ELEMENT_ERROR (avi, STREAM, DEMUX, (NULL), ("failed to read indexes"));
+ return GST_FLOW_ERROR;
+ }
+seek_failed:
+ {
+ GST_ELEMENT_ERROR (avi, STREAM, DEMUX, (NULL), ("push mode seek failed"));
+ return GST_FLOW_ERROR;
+ }
+abort_buffering:
+ {
avi->abort_buffering = FALSE;
- res = GST_FLOW_ERROR;
GST_ELEMENT_ERROR (avi, STREAM, DEMUX, (NULL), ("unhandled buffer size"));
+ return GST_FLOW_ERROR;
}
-
- return res;
}
static gboolean
if (active) {
GST_DEBUG ("avi: activating push/chain function");
avi->streaming = TRUE;
+#if 0
+ /* create index for some push based seeking if not provided */
+ GST_OBJECT_LOCK (avi);
+ if (!avi->element_index) {
+ GST_DEBUG_OBJECT (avi, "creating index");
+ avi->element_index = gst_index_factory_make ("memindex");
+ }
+ GST_OBJECT_UNLOCK (avi);
+ /* object lock might be taken again */
+ gst_index_get_writer_id (avi->element_index, GST_OBJECT_CAST (avi),
+ &avi->index_id);
+#endif
} else {
GST_DEBUG ("avi: deactivating push/chain function");
}
return TRUE;
}
+static void
+gst_avi_demux_set_index (GstElement * element, GstIndex * index)
+{
+ GstAviDemux *avi = GST_AVI_DEMUX (element);
+
+ GST_OBJECT_LOCK (avi);
+ if (avi->element_index)
+ gst_object_unref (avi->element_index);
+ if (index) {
+ avi->element_index = gst_object_ref (index);
+ } else {
+ avi->element_index = NULL;
+ }
+ GST_OBJECT_UNLOCK (avi);
+ /* object lock might be taken again */
+ if (index)
+ gst_index_get_writer_id (index, GST_OBJECT_CAST (element), &avi->index_id);
+ GST_DEBUG_OBJECT (avi, "Set index %" GST_PTR_FORMAT, avi->element_index);
+}
+
+static GstIndex *
+gst_avi_demux_get_index (GstElement * element)
+{
+ GstIndex *result = NULL;
+ GstAviDemux *avi = GST_AVI_DEMUX (element);
+
+ GST_OBJECT_LOCK (avi);
+ if (avi->element_index)
+ result = gst_object_ref (avi->element_index);
+ GST_OBJECT_UNLOCK (avi);
+
+ GST_DEBUG_OBJECT (avi, "Returning index %" GST_PTR_FORMAT, result);
+
+ return result;
+}
+
static GstStateChangeReturn
gst_avi_demux_change_state (GstElement * element, GstStateChange transition)
{
switch (transition) {
case GST_STATE_CHANGE_PAUSED_TO_READY:
+ avi->have_index = FALSE;
gst_avi_demux_reset (avi);
break;
default:
projects / platform / upstream / gst-plugins-good.git / blobdiff