From 364030f42c18bddfab5df58fd437ce1ddf2ad260 Mon Sep 17 00:00:00 2001 From: Andy Wingo Date: Sun, 23 Dec 2001 06:03:21 +0000 Subject: [PATCH] Initial revision Original commit message from CVS: Initial revision --- ext/mpeg2dec/.gitignore | 7 + ext/mpeg2dec/Makefile.am | 30 +++ ext/mpeg2dec/gstmpeg2dec.c | 620 +++++++++++++++++++++++++++++++++++++++++++++ ext/mpeg2dec/gstmpeg2dec.h | 86 +++++++ ext/mpeg2dec/perftest.c | 35 +++ 5 files changed, 778 insertions(+) create mode 100644 ext/mpeg2dec/.gitignore create mode 100644 ext/mpeg2dec/Makefile.am create mode 100644 ext/mpeg2dec/gstmpeg2dec.c create mode 100644 ext/mpeg2dec/gstmpeg2dec.h create mode 100644 ext/mpeg2dec/perftest.c diff --git a/ext/mpeg2dec/.gitignore b/ext/mpeg2dec/.gitignore new file mode 100644 index 0000000..08f5ed3 --- /dev/null +++ b/ext/mpeg2dec/.gitignore @@ -0,0 +1,7 @@ +Makefile +Makefile.in +*.o +*.lo +*.la +.deps +.libs diff --git a/ext/mpeg2dec/Makefile.am b/ext/mpeg2dec/Makefile.am new file mode 100644 index 0000000..ca50757 --- /dev/null +++ b/ext/mpeg2dec/Makefile.am @@ -0,0 +1,30 @@ +filterdir = $(libdir)/gst + +filter_LTLIBRARIES = libgstmpeg2dec.la + +if HAVE_CPU_I386 +ARCHFLAGS = -m486 +else +ARCHFLAGS = +endif + +libgstmpeg2dec_la_SOURCES = gstmpeg2dec.c +libgstmpeg2dec_la_LIBADD = -lmpeg2 -lmpeg2dec +libgstmpeg2dec_la_CFLAGS = $(GST_CFLAGS) -O3 $(ARCHFLAGS) $(FOMIT_FRAME_POINTER) -ffast-math + +# +# Use the following if you use mpeg2dec from CVS +# +#libgstmpeg2dec_la_LIBADD = -lmpeg2 -lcpuaccel + +noinst_HEADERS = gstmpeg2dec.h + +#noinst_PROGRAMS = perftest + +#perftest_SOURCES = perftest.c $(libgstmpeg2dec_la_SOURCES) +#perftest_CFLAGS = $(GST_CFLAGS) +#perftest_LDADD = $(GST_LIBS) + +#CFLAGS += -pg -Wall -fprofile-arcs -ftest-coverage +#CFLAGS += -pg -Wall -O3 + diff --git a/ext/mpeg2dec/gstmpeg2dec.c b/ext/mpeg2dec/gstmpeg2dec.c new file mode 100644 index 0000000..0833b45 --- /dev/null +++ b/ext/mpeg2dec/gstmpeg2dec.c @@ -0,0 +1,620 @@ +/* Gnome-Streamer + * Copyright (C) <1999> Erik Walthinsen + * + * 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. + */ + +#include + +#include + +#include +#include +#include "gstmpeg2dec.h" + +/* elementfactory information */ +static GstElementDetails gst_mpeg2dec_details = { + "mpeg1 and mpeg2 video decoder", + "Filter/Decoder/Video", + "Uses libmpeg2 to decode MPEG video streams", + VERSION, + "David I. Lehn ", + "(C) 2000", +}; + +/* Mpeg2dec signals and args */ +enum { + /* FILL ME */ + LAST_SIGNAL +}; + +enum { + ARG_0, + /* FILL ME */ +}; + +static double video_rates[16] = +{ + 0.0, + 24000.0/1001., + 24.0, + 25.0, + 30000.0/1001., + 30.0, + 50.0, + 60000.0/1001., + 60.0, + 1, + 5, + 10, + 12, + 15, + 0, + 0 +}; + +GST_PADTEMPLATE_FACTORY (src_template_factory, + "src", + GST_PAD_SRC, + GST_PAD_ALWAYS, + GST_CAPS_NEW ( + "mpeg2dec_src", + "video/raw", + "format", GST_PROPS_FOURCC (GST_MAKE_FOURCC ('I','4','2','0')), + "width", GST_PROPS_INT_RANGE (16, 4096), + "height", GST_PROPS_INT_RANGE (16, 4096) + ) +); + +GST_PADTEMPLATE_FACTORY (sink_template_factory, + "sink", + GST_PAD_SINK, + GST_PAD_ALWAYS, + GST_CAPS_NEW ( + "mpeg2dec_sink", + "video/mpeg", + "mpegversion", GST_PROPS_INT_RANGE (1, 2), + "systemstream", GST_PROPS_BOOLEAN (FALSE) + ) +); + +static void gst_mpeg2dec_class_init (GstMpeg2decClass *klass); +static void gst_mpeg2dec_init (GstMpeg2dec *mpeg2dec); + +static void gst_mpeg2dec_dispose (GObject *object); + +static void gst_mpeg2dec_set_property (GObject *object, guint prop_id, + const GValue *value, GParamSpec *pspec); +static void gst_mpeg2dec_get_property (GObject *object, guint prop_id, + GValue *value, GParamSpec *pspec); + +static GstElementStateReturn + gst_mpeg2dec_change_state (GstElement *element); + +static void gst_mpeg2dec_chain (GstPad *pad, GstBuffer *buffer); + +static GstElementClass *parent_class = NULL; +/*static guint gst_mpeg2dec_signals[LAST_SIGNAL] = { 0 };*/ + +GType +gst_mpeg2dec_get_type (void) +{ + static GType mpeg2dec_type = 0; + + if (!mpeg2dec_type) { + static const GTypeInfo mpeg2dec_info = { + sizeof(GstMpeg2decClass), + NULL, + NULL, + (GClassInitFunc)gst_mpeg2dec_class_init, + NULL, + NULL, + sizeof(GstMpeg2dec), + 0, + (GInstanceInitFunc)gst_mpeg2dec_init, + }; + mpeg2dec_type = g_type_register_static(GST_TYPE_ELEMENT, "GstMpeg2dec", &mpeg2dec_info, 0); + } + return mpeg2dec_type; +} + +static void +gst_mpeg2dec_class_init(GstMpeg2decClass *klass) +{ + GObjectClass *gobject_class; + GstElementClass *gstelement_class; + + gobject_class = (GObjectClass*)klass; + gstelement_class = (GstElementClass*)klass; + + parent_class = g_type_class_ref(GST_TYPE_ELEMENT); + + gobject_class->set_property = gst_mpeg2dec_set_property; + gobject_class->get_property = gst_mpeg2dec_get_property; + gobject_class->dispose = gst_mpeg2dec_dispose; + + gstelement_class->change_state = gst_mpeg2dec_change_state; +} + +typedef struct gst_mpeg2dec_vo_frame_s { + vo_frame_t vo; + + GstBuffer *buffer; + gboolean sent; +} gst_mpeg2dec_vo_frame_t; + +#define NUM_FRAMES 3 + +typedef struct gst_mpeg2dec_vo_instance_s { + vo_instance_t vo; + + GstMpeg2dec *mpeg2dec; + + gint prediction_index; + gst_mpeg2dec_vo_frame_t frames[NUM_FRAMES]; + +} gst_mpeg2dec_vo_instance_t; + +static void +gst_mpeg2dec_vo_frame_copy (vo_frame_t * frame, uint8_t ** src) +{ + GST_INFO (GST_CAT_PLUGIN_INFO, "VO: copy"); +} + +static void +gst_mpeg2dec_vo_frame_field (vo_frame_t * frame, int flags) +{ + GST_INFO (GST_CAT_PLUGIN_INFO, "VO: field"); +} + +static void +gst_mpeg2dec_vo_frame_draw (vo_frame_t * frame) +{ + gst_mpeg2dec_vo_instance_t *_instance; + gst_mpeg2dec_vo_frame_t *_frame; + GstMpeg2dec *mpeg2dec; + gint64 pts = -1; + + g_return_if_fail (frame != NULL); + g_return_if_fail (((gst_mpeg2dec_vo_frame_t *)frame)->buffer != NULL); + + _frame = (gst_mpeg2dec_vo_frame_t *)frame; + _instance = (gst_mpeg2dec_vo_instance_t *)frame->instance; + + mpeg2dec = GST_MPEG2DEC (_instance->mpeg2dec); + + + /* we have to be carefull here. we do mpeg2_close in the READY state + * but it can send a few frames still. We have to make sure we are playing + * when we send frames. we do have to free those last frames though */ + if (GST_STATE (GST_ELEMENT (mpeg2dec)) != GST_STATE_PLAYING) { + gst_buffer_unref (_frame->buffer); + /* pretend we have sent the frame */ + _frame->sent = TRUE; + return; + } + + if (mpeg2dec->frame_rate_code != mpeg2dec->decoder->frame_rate_code) + { + mpeg2dec->frame_rate_code = mpeg2dec->decoder->frame_rate_code; + gst_element_send_event (GST_ELEMENT (mpeg2dec), + gst_event_new_info ("frame_rate", + GST_PROPS_FLOAT (video_rates[mpeg2dec->frame_rate_code]), NULL)); + } + + pts = mpeg2dec->next_time; + + GST_BUFFER_TIMESTAMP (_frame->buffer) = pts; + + GST_DEBUG (0, "out: %lld %d %lld\n", GST_BUFFER_TIMESTAMP (_frame->buffer), + mpeg2dec->decoder->frame_rate_code, + (long long)(1000000LL/video_rates[mpeg2dec->decoder->frame_rate_code])); + + mpeg2dec->next_time += (1000000LL/video_rates[mpeg2dec->decoder->frame_rate_code]) + mpeg2dec->adjust; + + GST_BUFFER_FLAG_SET (_frame->buffer, GST_BUFFER_READONLY); + mpeg2dec->frames_per_PTS++; + mpeg2dec->first = FALSE; + _frame->sent = TRUE; + gst_pad_push (mpeg2dec->srcpad, _frame->buffer); +} + +static int +gst_mpeg2dec_vo_setup (vo_instance_t * instance, int width, int height) +{ + gst_mpeg2dec_vo_instance_t * _instance; + GstMpeg2dec *mpeg2dec; + + g_return_val_if_fail (instance != NULL, -1); + + GST_INFO (GST_CAT_PLUGIN_INFO, "VO: setup w=%d h=%d", width, height); + + _instance = (gst_mpeg2dec_vo_instance_t*)instance; + mpeg2dec = _instance->mpeg2dec; + _instance->prediction_index = 1; + mpeg2dec->width = width; + mpeg2dec->height = height; + + gst_pad_set_caps (mpeg2dec->srcpad, + gst_caps_new ( + "mpeg2dec_caps", + "video/raw", + gst_props_new ( + "format", GST_PROPS_FOURCC (GST_MAKE_FOURCC ('I','4','2','0')), + "width", GST_PROPS_INT (width), + "height", GST_PROPS_INT (height), + NULL))); + + + return 0; +} + + +static void +gst_mpeg2dec_vo_close (vo_instance_t * instance) +{ + gst_mpeg2dec_vo_instance_t * _instance; + + GST_INFO (GST_CAT_PLUGIN_INFO, "VO: close"); + + _instance = (gst_mpeg2dec_vo_instance_t*)instance; + /* FIXME */ +} + +static vo_frame_t * +gst_mpeg2dec_vo_get_frame (vo_instance_t * instance, int flags) +{ + gst_mpeg2dec_vo_instance_t * _instance; + gst_mpeg2dec_vo_frame_t *frame; + size_t size0; + uint8_t *data = NULL; + GstMpeg2dec *mpeg2dec; + + g_return_val_if_fail (instance != NULL, NULL); + + GST_INFO (GST_CAT_PLUGIN_INFO, "VO: get_frame"); + + _instance = (gst_mpeg2dec_vo_instance_t *)instance; + + mpeg2dec = _instance->mpeg2dec; + + if (flags & VO_PREDICTION_FLAG) { + _instance->prediction_index ^= 1; + frame = &_instance->frames[_instance->prediction_index]; + } else { + frame = &_instance->frames[2]; + } + + /* we are reusing this frame */ + if (frame->buffer != NULL) { + /* if the frame wasn't sent, we have to unref twice */ + if (!frame->sent) + gst_buffer_unref (frame->buffer); + gst_buffer_unref (frame->buffer); + frame->buffer = NULL; + } + + size0 = mpeg2dec->width * mpeg2dec->height / 4; + + if (mpeg2dec->peerpool) { + frame->buffer = gst_buffer_new_from_pool (mpeg2dec->peerpool, 0, 0); + } else { + size_t size = 6 * size0; + size_t offset; + GstBuffer *parent; + + parent = gst_buffer_new (); + + GST_BUFFER_SIZE(parent) = size + 0x10; + GST_BUFFER_DATA(parent) = data = g_new(uint8_t, size + 0x10); + + offset = 0x10 - (((unsigned long)data) & 0xf); + frame->buffer = gst_buffer_create_sub(parent, offset, size); + + gst_buffer_unref(parent); + } + data = GST_BUFFER_DATA(frame->buffer); + + /* need ref=2 */ + /* 1 - unref when reusing this frame */ + /* 2 - unref when other elements done with buffer */ + gst_buffer_ref (frame->buffer); + + frame->vo.base[0] = data; + frame->vo.base[1] = data + 4 * size0; + frame->vo.base[2] = data + 5 * size0; + /*printf("base[0]=%p\n", frame->vo.base[0]); */ + frame->sent = FALSE; + + return (vo_frame_t *)frame; +} + +static void +gst_mpeg2dec_vo_open (GstMpeg2dec *mpeg2dec) +{ + gst_mpeg2dec_vo_instance_t * instance; + gint i,j; + + GST_INFO (GST_CAT_PLUGIN_INFO, "VO: open"); + + instance = g_new (gst_mpeg2dec_vo_instance_t, 1); + + instance->vo.setup = gst_mpeg2dec_vo_setup; + instance->vo.close = gst_mpeg2dec_vo_close; + instance->vo.get_frame = gst_mpeg2dec_vo_get_frame; + instance->mpeg2dec = mpeg2dec; + + for (i=0; iframes[j].vo.base[j] = NULL; + } + instance->frames[i].vo.copy = NULL; + instance->frames[i].vo.field = NULL; + instance->frames[i].vo.draw = gst_mpeg2dec_vo_frame_draw; + instance->frames[i].vo.instance = (vo_instance_t *)instance; + instance->frames[i].buffer = NULL; + } + + mpeg2dec->vo = (vo_instance_t *) instance; +} + +static void +gst_mpeg2dec_vo_destroy (GstMpeg2dec *mpeg2dec) +{ + gst_mpeg2dec_vo_instance_t * instance; + gint i; + + GST_INFO (GST_CAT_PLUGIN_INFO, "VO: destroy"); + + instance = (gst_mpeg2dec_vo_instance_t *) mpeg2dec->vo; + + for (i=0; iframes[i].buffer) { + if (!instance->frames[i].sent) { + gst_buffer_unref (instance->frames[i].buffer); + } + gst_buffer_unref (instance->frames[i].buffer); + } + } + + g_free (instance); + mpeg2dec->vo = NULL; +} + +static void +gst_mpeg2dec_init (GstMpeg2dec *mpeg2dec) +{ + + /* create the sink and src pads */ + mpeg2dec->sinkpad = gst_pad_new_from_template ( + GST_PADTEMPLATE_GET (sink_template_factory), "sink"); + gst_element_add_pad (GST_ELEMENT (mpeg2dec), mpeg2dec->sinkpad); + gst_pad_set_chain_function (mpeg2dec->sinkpad, gst_mpeg2dec_chain); + + mpeg2dec->srcpad = gst_pad_new_from_template ( + GST_PADTEMPLATE_GET (src_template_factory), "src"); + gst_element_add_pad (GST_ELEMENT (mpeg2dec), mpeg2dec->srcpad); + + /* initialize the mpeg2dec decoder state */ + mpeg2dec->decoder = g_new (mpeg2dec_t, 1); + mpeg2dec->accel = mm_accel(); + + GST_FLAG_SET (GST_ELEMENT (mpeg2dec), GST_ELEMENT_EVENT_AWARE); +} + +static void +gst_mpeg2dec_dispose (GObject *object) +{ + GstMpeg2dec *mpeg2dec = GST_MPEG2DEC (object); + + g_free (mpeg2dec->decoder); + + G_OBJECT_CLASS (parent_class)->dispose (object); +} + +static void +gst_mpeg2dec_chain (GstPad *pad, GstBuffer *buf) +{ + GstMpeg2dec *mpeg2dec = GST_MPEG2DEC (gst_pad_get_parent (pad)); + guint32 size; + guchar *data; + guint num_frames; + gint64 pts; + + GST_DEBUG (0, "MPEG2DEC: chain called\n"); + + if (GST_IS_EVENT (buf)) { + GstEvent *ev = GST_EVENT (buf); + + switch (ev->type) { + case GST_EVENT_DISCONTINUOUS: + mpeg2dec->decoder->is_sequence_needed = 1; + gst_event_free (ev); + return; + case GST_EVENT_EOS: + if (!mpeg2dec->closed) { + /* close flushes the last few frames */ + mpeg2_close (mpeg2dec->decoder); + mpeg2dec->closed = TRUE; + } + default: + gst_pad_event_default (pad, ev); + return; + } + } + + size = GST_BUFFER_SIZE (buf); + data = GST_BUFFER_DATA (buf); + pts = GST_BUFFER_TIMESTAMP (buf); + /* rationale for these heuristics; + * - we keep our own timestamp guestimate in next_time, this is based on the + * frame rate of the video stream. + * - we receive PTS values in the buffer timestamp. + * - we only accept new pts values if they are monotonically increasing. + * - if we have more than 10 frames without a new PTS value, we compare our + * internal counter to the PTS and calculate a diff. This is usefull when the + * framerate in the stream is wrong. + * - if the PTS and our own counter are adrift bu more than 10 frames, we assume + * a discontinuity in the PTS and adjust our own counter. + */ + if (!mpeg2dec->first) { + if (mpeg2dec->last_PTS < pts) { + + if (pts != mpeg2dec->next_time && mpeg2dec->frames_per_PTS > 10) { + gint64 diff = ABS (pts - mpeg2dec->last_PTS); + + if (diff > (1000000LL/video_rates[mpeg2dec->decoder->frame_rate_code])+1000) { + mpeg2dec->adjust = (diff / mpeg2dec->frames_per_PTS +1) - + (1000000LL/video_rates[mpeg2dec->decoder->frame_rate_code]); + } + mpeg2dec->next_time = pts; + } + mpeg2dec->frames_per_PTS = 0; + } + if (ABS (pts - mpeg2dec->last_PTS) > (1000000LL/video_rates[mpeg2dec->decoder->frame_rate_code])*10) { + + mpeg2dec->frames_per_PTS = 0; + mpeg2dec->next_time = pts; + } + } + if (mpeg2dec->next_time < pts) { + mpeg2dec->next_time = pts; + } + mpeg2dec->last_PTS = pts; + + +/*fprintf(stderr, "MPEG2DEC: in timestamp=%llu\n",GST_BUFFER_TIMESTAMP(buf));*/ +/*fprintf(stderr, "MPEG2DEC: have buffer of %d bytes\n",size); */ + num_frames = mpeg2_decode_data(mpeg2dec->decoder, data, data + size); +/*fprintf(stderr, "MPEG2DEC: decoded %d frames\n", num_frames);*/ + + gst_buffer_unref(buf); +} + +static GstElementStateReturn +gst_mpeg2dec_change_state (GstElement *element) +{ + GstMpeg2dec *mpeg2dec = GST_MPEG2DEC (element); + + switch (GST_STATE_TRANSITION (element)) { + case GST_STATE_NULL_TO_READY: + break; + case GST_STATE_READY_TO_PAUSED: + { + gst_mpeg2dec_vo_open (mpeg2dec); + mpeg2_init (mpeg2dec->decoder, mpeg2dec->accel, mpeg2dec->vo); + + mpeg2dec->decoder->is_sequence_needed = 1; + mpeg2dec->next_time = 0; + mpeg2dec->peerpool = NULL; + mpeg2dec->closed = FALSE; + + /* reset the initial video state */ + mpeg2dec->format = -1; + mpeg2dec->width = -1; + mpeg2dec->height = -1; + mpeg2dec->first = TRUE; + mpeg2dec->frames_per_PTS = 0; + mpeg2dec->last_PTS = -1; + mpeg2dec->adjust = 0; + break; + } + case GST_STATE_PAUSED_TO_PLAYING: + /* try to get a bufferpool */ + mpeg2dec->peerpool = gst_pad_get_bufferpool (mpeg2dec->srcpad); + if (mpeg2dec->peerpool) + GST_INFO (GST_CAT_PLUGIN_INFO, "got pool %p", mpeg2dec->peerpool); + break; + case GST_STATE_PLAYING_TO_PAUSED: + /* need to clear things we get from other plugins, since we could be reconnected */ + if (mpeg2dec->peerpool) { + mpeg2dec->peerpool = NULL; + } + break; + case GST_STATE_PAUSED_TO_READY: + /* if we are not closed by an EOS event do so now, this cen send a few frames but + * we are prepared to not really send them (see above) */ + if (!mpeg2dec->closed) { + mpeg2_close (mpeg2dec->decoder); + mpeg2dec->closed = TRUE; + } + gst_mpeg2dec_vo_destroy (mpeg2dec); + break; + case GST_STATE_READY_TO_NULL: + break; + default: + break; + } + + GST_ELEMENT_CLASS (parent_class)->change_state (element); + + return GST_STATE_SUCCESS; +} + +static void +gst_mpeg2dec_set_property (GObject *object, guint prop_id, const GValue *value, GParamSpec *pspec) +{ + GstMpeg2dec *src; + + /* it's not null if we got it, but it might not be ours */ + g_return_if_fail (GST_IS_MPEG2DEC (object)); + src = GST_MPEG2DEC (object); + + switch (prop_id) { + default: + break; + } +} + +static void +gst_mpeg2dec_get_property (GObject *object, guint prop_id, GValue *value, GParamSpec *pspec) +{ + GstMpeg2dec *src; + + /* it's not null if we got it, but it might not be ours */ + g_return_if_fail (GST_IS_MPEG2DEC (object)); + src = GST_MPEG2DEC (object); + + switch (prop_id) { + default: + break; + } +} + +static gboolean +plugin_init (GModule *module, GstPlugin *plugin) +{ + GstElementFactory *factory; + + /* create an elementfactory for the mpeg2dec element */ + factory = gst_elementfactory_new("mpeg2dec",GST_TYPE_MPEG2DEC, + &gst_mpeg2dec_details); + g_return_val_if_fail(factory != NULL, FALSE); + + gst_elementfactory_add_padtemplate (factory, GST_PADTEMPLATE_GET (src_template_factory)); + gst_elementfactory_add_padtemplate (factory, GST_PADTEMPLATE_GET (sink_template_factory)); + + gst_plugin_add_feature (plugin, GST_PLUGIN_FEATURE (factory)); + + return TRUE; +} + +GstPluginDesc plugin_desc = { + GST_VERSION_MAJOR, + GST_VERSION_MINOR, + "mpeg2dec", + plugin_init +}; diff --git a/ext/mpeg2dec/gstmpeg2dec.h b/ext/mpeg2dec/gstmpeg2dec.h new file mode 100644 index 0000000..3e8d6fd --- /dev/null +++ b/ext/mpeg2dec/gstmpeg2dec.h @@ -0,0 +1,86 @@ +/* Gnome-Streamer + * Copyright (C) <1999> Erik Walthinsen + * + * 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_MPEG2DEC_H__ +#define __GST_MPEG2DEC_H__ + + +#include +#include +#include + +#ifdef __cplusplus +extern "C" { +#endif /* __cplusplus */ + + +#define GST_TYPE_MPEG2DEC \ + (gst_mpeg2dec_get_type()) +#define GST_MPEG2DEC(obj) \ + (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_MPEG2DEC,GstMpeg2dec)) +#define GST_MPEG2DEC_CLASS(klass) \ + (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_MPEG2DEC,GstMpeg2dec)) +#define GST_IS_MPEG2DEC(obj) \ + (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_MPEG2DEC)) +#define GST_IS_MPEG2DEC_CLASS(obj) \ + (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_MPEG2DEC)) + +typedef struct _GstMpeg2dec GstMpeg2dec; +typedef struct _GstMpeg2decClass GstMpeg2decClass; + +struct _GstMpeg2dec { + GstElement element; + + /* pads */ + GstPad *sinkpad,*srcpad; + GstBufferPool *peerpool; + + mpeg2dec_t *decoder; + guint32 accel; + vo_instance_t *vo; + gboolean closed; + + /* the timestamp of the next frame */ + gboolean first; + gint64 next_time; + gint64 last_PTS; + gint frames_per_PTS; + gint adjust; + + /* video state */ + gint format; + gint width; + gint height; + gint frame_rate_code; +}; + +struct _GstMpeg2decClass { + GstElementClass parent_class; +}; + +GType gst_mpeg2dec_get_type(void); + + +#ifdef __cplusplus +} +#endif /* __cplusplus */ + + +#endif /* __GST_MPEG2DEC_H__ */ diff --git a/ext/mpeg2dec/perftest.c b/ext/mpeg2dec/perftest.c new file mode 100644 index 0000000..0d3209c --- /dev/null +++ b/ext/mpeg2dec/perftest.c @@ -0,0 +1,35 @@ + + +#include +#include +#include +#include +#include + +#include "output_video.h" +#include "gstmpeg2dec.h" + + +void new_frame (char *buf, void *data, uint64_t timestamp) +{ + g_print("."); +} + + +int +main (int argc, char *argv[]) +{ + int fd, count = 20000; + mpeg2dec_t *decoder; + char buffer[2048]; + + fd = open (argv[1], O_RDONLY); + + gst_init (&argc, &argv); + mpeg2_init (decoder, new_frame, NULL); + + while (read (fd, buffer, 2048) && count--) { + mpeg2_decode_data(decoder, buffer, buffer + 2048); + } + g_print("\n"); +} -- 2.7.4