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ext/ffmpeg/: Welcome the demuxers to 0.10 :)

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Original commit message from CVS:
* ext/ffmpeg/Makefile.am:
* ext/ffmpeg/gstffmpeg.c: (plugin_init):
* ext/ffmpeg/gstffmpegdemux.c: (gst_ffmpegdemux_base_init),
(gst_ffmpegdemux_init), (gst_ffmpegdemux_stream_from_pad),
(gst_ffmpegdemux_handle_seek), (gst_ffmpegdemux_src_event),
(gst_ffmpegdemux_src_query_list), (gst_ffmpegdemux_src_query),
(gst_ffmpegdemux_add), (gst_ffmpegdemux_open),
(gst_ffmpegdemux_loop), (gst_ffmpegdemux_sink_activate),
(gst_ffmpegdemux_sink_activate_pull),
(gst_ffmpegdemux_change_state), (gst_ffmpegdemux_register):
* ext/ffmpeg/gstffmpegprotocol.c: (gst_ffmpegdata_open),
(gst_ffmpegdata_peek), (gst_ffmpegdata_read),
(gst_ffmpegdata_write), (gst_ffmpegdata_seek),
(gst_ffmpegdata_close):
Welcome the demuxers to 0.10 :)
For the time being the demuxers work only pull-based.
Seeking, querying works.
This commit is contained in:
Edward Hervey 2006-02-10 19:42:19 +00:00
parent 5081f02178
commit bcea38b0d8
5 changed files with 470 additions and 418 deletions
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20
ChangeLog
View file

@ -1,3 +1,23 @@
2006-02-10 Edward Hervey <edward@fluendo.com>
* ext/ffmpeg/Makefile.am:
* ext/ffmpeg/gstffmpeg.c: (plugin_init):
* ext/ffmpeg/gstffmpegdemux.c: (gst_ffmpegdemux_base_init),
(gst_ffmpegdemux_init), (gst_ffmpegdemux_stream_from_pad),
(gst_ffmpegdemux_handle_seek), (gst_ffmpegdemux_src_event),
(gst_ffmpegdemux_src_query_list), (gst_ffmpegdemux_src_query),
(gst_ffmpegdemux_add), (gst_ffmpegdemux_open),
(gst_ffmpegdemux_loop), (gst_ffmpegdemux_sink_activate),
(gst_ffmpegdemux_sink_activate_pull),
(gst_ffmpegdemux_change_state), (gst_ffmpegdemux_register):
* ext/ffmpeg/gstffmpegprotocol.c: (gst_ffmpegdata_open),
(gst_ffmpegdata_peek), (gst_ffmpegdata_read),
(gst_ffmpegdata_write), (gst_ffmpegdata_seek),
(gst_ffmpegdata_close):
Welcome the demuxers to 0.10 :)
For the time being the demuxers work only pull-based.
Seeking, querying works.
2006-02-10 Edward Hervey <edward@fluendo.com>
* ext/ffmpeg/gstffmpegcodecmap.c: (gst_ffmpeg_codecid_to_caps):

6
ext/ffmpeg/Makefile.am
View file

@ -4,10 +4,10 @@ libgstffmpeg_la_SOURCES = gstffmpeg.c \
gstffmpegcodecmap.c \
gstffmpegdec.c \
gstffmpegenc.c \
gstffmpegdeinterlace.c
# gstffmpegdemux.c \
gstffmpegdeinterlace.c \
gstffmpegdemux.c \
gstffmpegprotocol.c
# gstffmpegmux.c \
# gstffmpegprotocol.c \
# gstffmpegscale.c
libgstffmpeg_la_CFLAGS = $(GST_CFLAGS) $(GST_PLUGINS_BASE_CFLAGS) \

4
ext/ffmpeg/gstffmpeg.c
View file

@ -110,14 +110,14 @@ plugin_init (GstPlugin * plugin)
gst_ffmpegenc_register (plugin);
gst_ffmpegdec_register (plugin);
gst_ffmpegdeinterlace_register (plugin);
#if 0
gst_ffmpegdemux_register (plugin);
#if 0
gst_ffmpegmux_register (plugin);
gst_ffmpegcsp_register (plugin);
gst_ffmpegscale_register (plugin);
#endif
register_protocol (&gstreamer_protocol);
#endif
/* Now we can return the pointer to the newly created Plugin object. */
return TRUE;

573
ext/ffmpeg/gstffmpegdemux.c
View file

@ -1,5 +1,6 @@
/* GStreamer
* Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
* Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>,
* <2006> Edward Hervey <bilboed@bilboed.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
@ -51,6 +52,15 @@ struct _GstFFMpegDemux
gboolean handled[MAX_STREAMS];
guint64 last_ts[MAX_STREAMS];
gint videopads, audiopads;
/* segment stuff */
/* TODO : replace with GstSegment */
gdouble segment_rate;
GstSeekFlags segment_flags;
/* GST_FORMAT_TIME */
gint64 segment_start;
gint64 segment_stop;
GstEvent *seek_event;
};
typedef struct _GstFFMpegDemuxClassParams
@ -71,29 +81,6 @@ struct _GstFFMpegDemuxClass
GstPadTemplate *audiosrctempl;
};
#define GST_TYPE_FFMPEGDEC \
(gst_ffmpegdec_get_type())
#define GST_FFMPEGDEC(obj) \
(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_FFMPEGDEC,GstFFMpegDemux))
#define GST_FFMPEGDEC_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_FFMPEGDEC,GstFFMpegDemuxClass))
#define GST_IS_FFMPEGDEC(obj) \
(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_FFMPEGDEC))
#define GST_IS_FFMPEGDEC_CLASS(obj) \
(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_FFMPEGDEC))
enum
{
/* FILL ME */
LAST_SIGNAL
};
enum
{
ARG_0,
/* FILL ME */
};
static GHashTable *global_plugins;
/* A number of functon prototypes are given so we can refer to them later. */
@ -101,15 +88,21 @@ static void gst_ffmpegdemux_class_init (GstFFMpegDemuxClass * klass);
static void gst_ffmpegdemux_base_init (GstFFMpegDemuxClass * klass);
static void gst_ffmpegdemux_init (GstFFMpegDemux * demux);
static void gst_ffmpegdemux_loop (GstElement * element);
static void gst_ffmpegdemux_loop (GstPad * pad);
static gboolean
gst_ffmpegdemux_sink_activate (GstPad * sinkpad);
static gboolean
gst_ffmpegdemux_sink_activate_pull (GstPad * sinkpad, gboolean active);
static gboolean
gst_ffmpegdemux_src_convert (GstPad * pad,
GstFormat src_fmt,
gint64 src_value, GstFormat * dest_fmt, gint64 * dest_value);
static GstStateChangeReturn
gst_ffmpegdemux_change_state (GstElement * element, GstStateChange transition);
static GstElementClass *parent_class = NULL;
/*static guint gst_ffmpegdemux_signals[LAST_SIGNAL] = { 0 }; */
static const gchar *
gst_ffmpegdemux_averror (gint av_errno)
{
@ -162,10 +155,11 @@ gst_ffmpegdemux_base_init (GstFFMpegDemuxClass * klass)
details.longname = g_strdup_printf ("FFMPEG %s demuxer",
params->in_plugin->long_name);
details.klass = "Codec/Demuxer";
details.description = g_strdup_printf ("FFMPEG %s decoder",
details.description = g_strdup_printf ("FFMPEG %s demuxer",
params->in_plugin->long_name);
details.author = "Wim Taymans <wim.taymans@chello.be>, "
"Ronald Bultje <rbultje@ronald.bitfreak.net>";
"Ronald Bultje <rbultje@ronald.bitfreak.net>, "
"Edward Hervey <bilboed@bilboed.com>";
gst_element_class_set_details (element_class, &details);
g_free (details.longname);
g_free (details.description);
@ -210,8 +204,10 @@ gst_ffmpegdemux_init (GstFFMpegDemux * demux)
gint n;
demux->sinkpad = gst_pad_new_from_template (oclass->sinktempl, "sink");
gst_pad_set_activate_function (demux->sinkpad, gst_ffmpegdemux_sink_activate);
gst_pad_set_activatepull_function (demux->sinkpad,
gst_ffmpegdemux_sink_activate_pull);
gst_element_add_pad (GST_ELEMENT (demux), demux->sinkpad);
gst_element_set_loop_function (GST_ELEMENT (demux), gst_ffmpegdemux_loop);
demux->opened = FALSE;
demux->context = NULL;
@ -223,6 +219,12 @@ gst_ffmpegdemux_init (GstFFMpegDemux * demux)
}
demux->videopads = 0;
demux->audiopads = 0;
demux->segment_rate = 1.0;
demux->segment_flags = 0;
demux->segment_start = -1;
demux->segment_stop = -1;
demux->seek_event = NULL;
}
static void
@ -266,18 +268,59 @@ gst_ffmpegdemux_stream_from_pad (GstPad * pad)
}
}
gst_object_unref (demux);
return stream;
}
static const GstEventMask *
gst_ffmpegdemux_src_event_mask (GstPad * pad)
static gboolean
gst_ffmpegdemux_handle_seek (GstFFMpegDemux * demux, gboolean update)
{
static const GstEventMask masks[] = {
{GST_EVENT_SEEK, GST_SEEK_METHOD_SET | GST_SEEK_FLAG_KEY_UNIT},
{0,}
};
gboolean flush, keyframe;
guint stream;
return masks;
GST_DEBUG_OBJECT (demux, "update:%d", update);
flush = demux->segment_flags & GST_SEEK_FLAG_FLUSH;
keyframe = demux->segment_flags & GST_SEEK_FLAG_KEY_UNIT;
if (flush) {
for (stream = 0; stream < demux->context->nb_streams; stream++) {
gst_pad_push_event (demux->srcpads[stream],
gst_event_new_flush_start());
}
gst_pad_push_event (demux->sinkpad, gst_event_new_flush_start ());
} else
gst_pad_pause_task (demux->sinkpad);
GST_PAD_STREAM_LOCK (demux->sinkpad);
GST_DEBUG_OBJECT (demux, "Creating new segment (%"GST_TIME_FORMAT" / %"GST_TIME_FORMAT,
GST_TIME_ARGS (demux->segment_start),
GST_TIME_ARGS (demux->segment_stop));
demux->seek_event = gst_event_new_new_segment (!update, demux->segment_rate, GST_FORMAT_TIME,
demux->segment_start, demux->segment_stop,
demux->segment_start);
if (flush) {
for (stream = 0; stream < demux->context->nb_streams; stream++)
gst_pad_push_event (demux->srcpads[stream],
gst_event_new_flush_stop ());
gst_pad_push_event (demux->sinkpad, gst_event_new_flush_stop ());
}
if (demux->segment_flags & GST_SEEK_FLAG_SEGMENT)
gst_element_post_message (GST_ELEMENT (demux),
gst_message_new_segment_start (GST_OBJECT (demux),
GST_FORMAT_TIME,
demux->segment_start));
gst_pad_start_task (demux->sinkpad, (GstTaskFunction) gst_ffmpegdemux_loop,
demux->sinkpad);
GST_PAD_STREAM_UNLOCK (demux->sinkpad);
return TRUE;
}
static gboolean
@ -292,59 +335,93 @@ gst_ffmpegdemux_src_event (GstPad * pad, GstEvent * event)
return FALSE;
switch (GST_EVENT_TYPE (event)) {
case GST_EVENT_SEEK:
offset = GST_EVENT_SEEK_OFFSET (event);
switch (GST_EVENT_SEEK_FORMAT (event)) {
case GST_FORMAT_DEFAULT:
if (stream->codec->codec_type != CODEC_TYPE_VIDEO) {
res = FALSE;
break;
} else {
GstFormat fmt = GST_FORMAT_TIME;
case GST_EVENT_SEEK:
{
GstFormat format;
GstSeekFlags flags;
gdouble rate;
gint64 start, stop;
gint64 tstart, tstop;
gint64 duration;
GstFormat tformat = GST_FORMAT_TIME;
GstSeekType start_type, stop_type;
gboolean update_start = TRUE;
gboolean update_stop = TRUE;
if (!(res = gst_pad_convert (pad, GST_FORMAT_DEFAULT, offset,
&fmt, &offset)))
break;
}
/* fall-through */
case GST_FORMAT_TIME:
if (av_seek_frame (demux->context, stream->index,
offset / (GST_SECOND / AV_TIME_BASE) , 0))
res = FALSE;
gst_event_parse_seek (event, &rate, &format, &flags, &start_type, &start,
&stop_type, &stop);
GST_DEBUG_OBJECT (demux,
"seek format %d, flags:%d, start:%lld, stop:%lld", format,
flags, start, stop);
if (format != GST_FORMAT_TIME) {
res &= gst_ffmpegdemux_src_convert (pad, format, start, &tformat, &tstart);
res &= gst_ffmpegdemux_src_convert (pad, format, stop, &tformat, &tstop);
} else {
tstart = start;
tstop = stop;
}
duration = gst_ffmpeg_time_ff_to_gst (stream->duration, stream->time_base);
switch (start_type) {
case GST_SEEK_TYPE_CUR:
tstart = demux->segment_start + tstart;
break;
default:
res = FALSE;
case GST_SEEK_TYPE_END:
tstart = duration + tstart;
break;
case GST_SEEK_TYPE_NONE:
tstart = demux->segment_start;
update_start = FALSE;
break;
case GST_SEEK_TYPE_SET:
break;
}
tstart = CLAMP (tstart, 0, duration);
switch (stop_type) {
case GST_SEEK_TYPE_CUR:
tstop = demux->segment_stop + tstop;
break;
case GST_SEEK_TYPE_END:
tstop = duration + tstop;
break;
case GST_SEEK_TYPE_NONE:
tstop = demux->segment_stop;
update_stop = FALSE;
break;
case GST_SEEK_TYPE_SET:
break;
}
tstop = CLAMP (tstop, 0, duration);
/* now store the values */
demux->segment_rate = rate;
demux->segment_flags = flags;
demux->segment_start = tstart;
demux->segment_stop = tstop;
gst_ffmpegdemux_handle_seek (demux, update_start || update_stop);
break;
default:
res = FALSE;
break;
}
break;
default:
res = FALSE;
break;
}
gst_event_unref (event);
return res;
}
static const GstFormat *
gst_ffmpegdemux_src_format_list (GstPad * pad)
{
AVStream *stream = gst_ffmpegdemux_stream_from_pad (pad);
static const GstFormat src_v_formats[] = {
GST_FORMAT_TIME,
GST_FORMAT_DEFAULT,
0
}, src_a_formats[] = {
GST_FORMAT_TIME, 0};
return (stream->codec->codec_type == CODEC_TYPE_VIDEO) ?
src_v_formats : src_a_formats;
}
static const GstQueryType *
gst_ffmpegdemux_src_query_list (GstPad * pad)
{
static const GstQueryType src_types[] = {
GST_QUERY_TOTAL,
GST_QUERY_DURATION,
GST_QUERY_POSITION,
0
};
@ -353,68 +430,80 @@ gst_ffmpegdemux_src_query_list (GstPad * pad)
}
static gboolean
gst_ffmpegdemux_src_query (GstPad * pad,
GstQueryType type, GstFormat * fmt, gint64 * value)
gst_ffmpegdemux_src_query (GstPad * pad, GstQuery *query)
{
GstFFMpegDemux *demux = (GstFFMpegDemux *) gst_pad_get_parent (pad);
GstFFMpegDemux *demux = (GstFFMpegDemux *) GST_PAD_PARENT (pad);
AVStream *stream = gst_ffmpegdemux_stream_from_pad (pad);
gboolean res = FALSE;
switch (type) {
case GST_QUERY_TOTAL:
switch (*fmt) {
case GST_FORMAT_TIME:
if (stream) {
*value = stream->duration * (GST_SECOND / AV_TIME_BASE);
res = TRUE;
}
break;
case GST_FORMAT_DEFAULT:
if (stream->codec_info_nb_frames &&
stream->codec->codec_type == CODEC_TYPE_VIDEO) {
*value = stream->codec_info_nb_frames;
res = TRUE;
}
break;
case GST_FORMAT_BYTES:
if (demux->videopads + demux->audiopads == 1 &&
GST_PAD_PEER (demux->sinkpad) != NULL) {
res = gst_pad_query (GST_PAD_PEER (demux->sinkpad),
type, fmt, value);
}
break;
default:
break;
if (stream == NULL)
return FALSE;
switch (GST_QUERY_TYPE (query)) {
case GST_QUERY_POSITION:
{
GstFormat format;
gint64 timeposition;
gst_query_parse_position (query, &format, NULL);
timeposition = demux->last_ts[stream->index];
if (!(GST_CLOCK_TIME_IS_VALID (timeposition)))
break;
switch (format) {
case GST_FORMAT_TIME:
gst_query_set_position (query, GST_FORMAT_TIME, timeposition);
res = TRUE;
break;
case GST_FORMAT_DEFAULT:
gst_query_set_position (query, GST_FORMAT_DEFAULT,
timeposition * stream->r_frame_rate.num /
(GST_SECOND * stream->r_frame_rate.den));
res = TRUE;
break;
case GST_FORMAT_BYTES:
if (demux->videopads + demux->audiopads == 1 &&
GST_PAD_PEER (demux->sinkpad) != NULL)
res = gst_pad_query_default (pad, query);
break;
default:
break;
}
break;
case GST_QUERY_POSITION:
switch (*fmt) {
case GST_FORMAT_TIME:
if (stream &&
GST_CLOCK_TIME_IS_VALID (demux->last_ts[stream->index])) {
*value = demux->last_ts[stream->index];
res = TRUE;
}
break;
case GST_FORMAT_DEFAULT:
if (stream && stream->codec->codec_type == CODEC_TYPE_VIDEO &&
GST_CLOCK_TIME_IS_VALID (demux->last_ts[stream->index])) {
res = gst_pad_convert (pad, GST_FORMAT_TIME,
demux->last_ts[stream->index], fmt, value);
}
break;
case GST_FORMAT_BYTES:
if (demux->videopads + demux->audiopads == 1 &&
GST_PAD_PEER (demux->sinkpad) != NULL) {
res = gst_pad_query (GST_PAD_PEER (demux->sinkpad),
type, fmt, value);
}
default:
break;
}
break;
case GST_QUERY_DURATION:
{
GstFormat format;
gint64 timeduration;
gst_query_parse_duration (query, &format, NULL);
timeduration = gst_ffmpeg_time_ff_to_gst (stream->duration, stream->time_base);
if (!(GST_CLOCK_TIME_IS_VALID (timeduration)))
break;
switch (format) {
case GST_FORMAT_TIME:
gst_query_set_duration (query, GST_FORMAT_TIME, timeduration);
res = TRUE;
break;
case GST_FORMAT_DEFAULT:
gst_query_set_duration (query, GST_FORMAT_DEFAULT,
timeduration * stream->r_frame_rate.num /
(GST_SECOND * stream->r_frame_rate.den));
res = TRUE;
break;
case GST_FORMAT_BYTES:
if (demux->videopads + demux->audiopads == 1 &&
GST_PAD_PEER (demux->sinkpad) != NULL)
res = gst_pad_query_default (pad, query);
break;
default:
break;
}
break;
default:
break;
}
break;
default:
/* FIXME : ADD GST_QUERY_CONVERT */
res = gst_pad_query_default (pad, query);
break;
}
return res;
@ -496,13 +585,11 @@ gst_ffmpegdemux_add (GstFFMpegDemux * demux, AVStream * stream)
pad = gst_pad_new_from_template (templ, padname);
g_free (padname);
gst_pad_use_explicit_caps (pad);
gst_pad_set_formats_function (pad, gst_ffmpegdemux_src_format_list);
gst_pad_set_event_mask_function (pad, gst_ffmpegdemux_src_event_mask);
gst_pad_set_event_function (pad, gst_ffmpegdemux_src_event);
gst_pad_use_fixed_caps (pad);
gst_pad_set_query_type_function (pad, gst_ffmpegdemux_src_query_list);
gst_pad_set_query_function (pad, gst_ffmpegdemux_src_query);
gst_pad_set_convert_function (pad, gst_ffmpegdemux_src_convert);
gst_pad_set_event_function (pad, gst_ffmpegdemux_src_event);
/* store pad internally */
demux->srcpads[stream->index] = pad;
@ -510,7 +597,7 @@ gst_ffmpegdemux_add (GstFFMpegDemux * demux, AVStream * stream)
/* get caps that belongs to this stream */
caps =
gst_ffmpeg_codecid_to_caps (stream->codec->codec_id, stream->codec, TRUE);
gst_pad_set_explicit_caps (pad, caps);
gst_pad_set_caps (pad, caps);
gst_element_add_pad (GST_ELEMENT (demux), pad);
@ -521,7 +608,7 @@ gst_ffmpegdemux_add (GstFFMpegDemux * demux, AVStream * stream)
gst_tag_list_add (list, GST_TAG_MERGE_REPLACE,
(stream->codec->codec_type == CODEC_TYPE_VIDEO) ?
GST_TAG_VIDEO_CODEC : GST_TAG_AUDIO_CODEC, codec, NULL);
gst_element_found_tags_for_pad (GST_ELEMENT (demux), pad, 0, list);
gst_element_found_tags_for_pad (GST_ELEMENT (demux), pad, list);
}
return TRUE;
@ -540,8 +627,11 @@ gst_ffmpegdemux_open (GstFFMpegDemux * demux)
/* open via our input protocol hack */
location = g_strdup_printf ("gstreamer://%p", demux->sinkpad);
GST_DEBUG_OBJECT (demux, "about to call av_open_input_file %s",
location);
res = av_open_input_file (&demux->context, location,
oclass->in_plugin, 0, NULL);
GST_DEBUG_OBJECT (demux, "av_open_input returned %d", res);
if (res >= 0)
res = av_find_stream_info (demux->context);
g_free (location);
@ -588,55 +678,97 @@ gst_ffmpegdemux_type_find (GstTypeFind * tf, gpointer priv)
}
}
/* Task */
static void
gst_ffmpegdemux_loop (GstElement * element)
gst_ffmpegdemux_loop (GstPad * pad)
{
GstFFMpegDemux *demux = (GstFFMpegDemux *) (element);
GstFFMpegDemux *demux = (GstFFMpegDemux*) (GST_PAD_PARENT (pad));
GstFlowReturn ret = GST_FLOW_OK;
gint res;
AVPacket pkt;
GstPad *pad;
GstPad *srcpad;
/* open file if we didn't so already */
if (!demux->opened) {
if (!gst_ffmpegdemux_open (demux))
return;
gst_element_no_more_pads (element);
return;
if (!gst_ffmpegdemux_open (demux)) {
ret = GST_FLOW_ERROR;
goto pause;
}
gst_element_no_more_pads (GST_ELEMENT (demux));
/* Calculate min start and maximum end */
for (res = 0; res < demux->context->nb_streams; res++) {
gint64 start_time, duration, end;
AVStream *stream;
stream = demux->context->streams[res];
start_time = gst_ffmpeg_time_ff_to_gst (stream->start_time, stream->time_base);
duration = gst_ffmpeg_time_ff_to_gst (stream->duration, stream->time_base);
if (start_time == GST_CLOCK_TIME_NONE)
start_time = 0;
if (duration == GST_CLOCK_TIME_NONE)
end = GST_CLOCK_TIME_NONE;
else
end = start_time + duration;
if ((start_time < demux->segment_start) || (demux->segment_start == -1))
demux->segment_start = start_time;
if ((end > demux->segment_stop) || (demux->segment_stop == -1))
demux->segment_stop = end;
}
/* Send newsegment on all src pads */
for (res = 0; res < demux->context->nb_streams; res++) {
AVStream *stream;
GST_DEBUG_OBJECT (demux, "sending newsegment start:%"GST_TIME_FORMAT" duration:%"GST_TIME_FORMAT,
GST_TIME_ARGS (demux->segment_start),
GST_TIME_ARGS (demux->segment_stop));
gst_pad_push_event(demux->srcpads[res],
gst_event_new_new_segment (FALSE, 1.0, GST_FORMAT_TIME,
demux->segment_start, demux->segment_stop,
demux->segment_start));
}
}
if (demux->seek_event) {
/* pending seek */
GST_DEBUG_OBJECT (demux, "About to call av_seek_frame (context, -1, %lld, 0)",
gst_ffmpeg_time_gst_to_ff (demux->segment_start, demux->context->streams[0]->time_base));
if ((av_seek_frame (demux->context, -1,
gst_ffmpeg_time_gst_to_ff (demux->segment_start, demux->context->streams[0]->time_base), 0)) < 0) {
GST_WARNING_OBJECT (demux, "Call to av_seek_frame failed");
ret = GST_FLOW_ERROR;
goto pause;
}
}
/* read a package */
res = av_read_frame (demux->context, &pkt);
if (res < 0) {
#if 0
/* This doesn't work - FIXME */
if (url_feof (&demux->context->pb)) {
gst_ffmpegdemux_close (demux);
gst_pad_event_default (demux->sinkpad, gst_event_new (GST_EVENT_EOS));
} else {
GST_ELEMENT_ERROR (demux, LIBRARY, FAILED, (NULL),
(gst_ffmpegdemux_averror (res)));
}
#endif
/* so, we do it the hacky way. */
GstData *data = NULL;
do {
data = gst_pad_pull (demux->sinkpad);
if (!GST_IS_EVENT (data) ||
GST_EVENT_TYPE (GST_EVENT (data)) != GST_EVENT_EOS) {
gst_data_unref (data);
data = NULL;
}
} while (!data);
gst_pad_event_default (demux->sinkpad, GST_EVENT (data));
//gst_ffmpegdemux_close (demux);
return;
/* something went wrong... */
GST_WARNING_OBJECT (demux, "av_read_frame returned %d", res);
ret = GST_FLOW_ERROR;
goto pause;
}
if (demux->seek_event) {
GST_DEBUG_OBJECT (demux, "About to send pending newsegment event (%"GST_TIME_FORMAT"/%"GST_TIME_FORMAT")",
GST_TIME_ARGS (demux->segment_start),
GST_TIME_ARGS (demux->segment_stop));
for (res = 0; res < demux->context->nb_streams; res++) {
gst_event_ref (demux->seek_event);
gst_pad_push_event (demux->srcpads[res], demux->seek_event);
}
gst_event_unref (demux->seek_event);
demux->seek_event = NULL;
}
GST_DEBUG_OBJECT (demux, "pkt pts:%lld / dts:%lld / size:%d / stream_index:%d / flags:%d / duration:%d / pos:%lld",
pkt.pts, pkt.dts, pkt.size, pkt.stream_index, pkt.flags, pkt.duration, pkt.pos);
/* for stream-generation-while-playing */
if (!demux->handled[pkt.stream_index]) {
gst_ffmpegdemux_add (demux, demux->context->streams[pkt.stream_index]);
@ -644,38 +776,92 @@ gst_ffmpegdemux_loop (GstElement * element)
}
/* shortcut to pad belonging to this stream */
pad = demux->srcpads[pkt.stream_index];
srcpad = demux->srcpads[pkt.stream_index];
/* and handle the data by pushing it forward... */
if (pad && GST_PAD_IS_USABLE (pad)) {
AVStream *stream = gst_ffmpegdemux_stream_from_pad (pad);
if (srcpad) {
AVStream *stream = gst_ffmpegdemux_stream_from_pad (srcpad);
GstBuffer *outbuf;
outbuf = gst_buffer_new_and_alloc (pkt.size);
memcpy (GST_BUFFER_DATA (outbuf), pkt.data, pkt.size);
GST_BUFFER_SIZE (outbuf) = pkt.size;
ret = gst_pad_alloc_buffer_and_set_caps (srcpad,
GST_CLOCK_TIME_NONE,
pkt.size,
GST_PAD_CAPS (srcpad),
&outbuf);
if (ret != GST_FLOW_OK) {
pkt.destruct (&pkt);
goto pause;
}
memcpy (GST_BUFFER_DATA (outbuf), pkt.data, pkt.size);
GST_BUFFER_TIMESTAMP (outbuf) =
gst_ffmpeg_time_ff_to_gst (pkt.pts,
gst_ffmpeg_time_ff_to_gst (pkt.pts,
demux->context->streams[pkt.stream_index]->time_base);
if (GST_BUFFER_TIMESTAMP_IS_VALID (outbuf))
demux->last_ts[stream->index] = GST_BUFFER_TIMESTAMP (outbuf);
if (!(pkt.flags & PKT_FLAG_KEY))
GST_BUFFER_FLAG_SET (outbuf, GST_BUFFER_FLAG_DELTA_UNIT);
if (pkt.flags & PKT_FLAG_KEY)
GST_BUFFER_FLAG_SET (outbuf, GST_BUFFER_KEY_UNIT);
else
GST_BUFFER_FLAG_SET (outbuf, GST_BUFFER_DELTA_UNIT);
gst_pad_push (pad, GST_DATA (outbuf));
GST_DEBUG_OBJECT (demux, "Sending out buffer time:%"GST_TIME_FORMAT" size:%d offset:%lld",
GST_TIME_ARGS (GST_BUFFER_TIMESTAMP (outbuf)),
GST_BUFFER_SIZE (outbuf),
GST_BUFFER_OFFSET (outbuf));
ret = gst_pad_push (srcpad, outbuf);
} else {
GST_WARNING_OBJECT (demux, "No pad from stream %d",
pkt.stream_index);
}
pkt.destruct (&pkt);
return;
pause:
GST_LOG_OBJECT (demux, "pausing task");
gst_pad_pause_task (demux->sinkpad);
if (GST_FLOW_IS_FATAL (ret)) {
int i;
GST_ELEMENT_ERROR (demux, STREAM, FAILED,
("Internal data stream error."),
("streaming stopped, reason %s", gst_flow_get_name (ret)));
for (i = 0; i < MAX_STREAMS; i++)
if (demux->srcpads[i])
gst_pad_push_event (demux->srcpads[i], gst_event_new_eos());
}
}
static gboolean
gst_ffmpegdemux_sink_activate (GstPad * sinkpad)
{
if (gst_pad_check_pull_range (sinkpad))
return gst_pad_activate_pull (sinkpad, TRUE);
return FALSE;
}
static gboolean
gst_ffmpegdemux_sink_activate_pull (GstPad * sinkpad, gboolean active)
{
if (active) {
/* if we have a scheduler we can start the task */
gst_pad_start_task (sinkpad, (GstTaskFunction) gst_ffmpegdemux_loop, sinkpad);
} else {
gst_pad_stop_task (sinkpad);
}
return TRUE;
}
static GstStateChangeReturn
gst_ffmpegdemux_change_state (GstElement * element, GstStateChange transition)
{
GstFFMpegDemux *demux = (GstFFMpegDemux *) (element);
GstStateChangeReturn ret;
ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
switch (transition) {
case GST_STATE_CHANGE_PAUSED_TO_READY:
@ -683,10 +869,7 @@ gst_ffmpegdemux_change_state (GstElement * element, GstStateChange transition)
break;
}
if (GST_ELEMENT_CLASS (parent_class)->change_state)
return GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
return GST_STATE_CHANGE_SUCCESS;
return ret;
}
gboolean
@ -763,8 +946,8 @@ gst_ffmpegdemux_register (GstPlugin * plugin)
/* if it's already registered, drop it */
if (g_type_from_name (type_name)) {
gst_caps_free (videosrccaps);
gst_caps_free (audiosrccaps);
gst_caps_unref (videosrccaps);
gst_caps_unref (audiosrccaps);
g_free (type_name);
goto next;
}
@ -795,7 +978,7 @@ gst_ffmpegdemux_register (GstPlugin * plugin)
if (!gst_element_register (plugin, type_name, rank, type) ||
(register_typefind_func == TRUE &&
!gst_type_find_register (plugin, typefind_name, rank,
gst_ffmpegdemux_type_find, extensions, sinkcaps, params))) {
gst_ffmpegdemux_type_find, extensions, sinkcaps, params, NULL))) {
g_warning ("Register of type ffdemux_%s failed", name);
g_free (type_name);
g_free (typefind_name);

285
ext/ffmpeg/gstffmpegprotocol.c
View file

@ -1,5 +1,6 @@
/* GStreamer
* Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
* <2006> Edward Hervey <bilboed@bilboed.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
@ -29,7 +30,6 @@
#endif
#include <gst/gst.h>
#include <gst/bytestream/bytestream.h>
#include "gstffmpeg.h"
@ -39,9 +39,9 @@ struct _GstProtocolInfo
{
GstPad *pad;
GstByteStream *bs;
guint64 offset;
gboolean eos;
gboolean set_streamheader;
gint set_streamheader;
};
static int
@ -60,12 +60,12 @@ gst_ffmpegdata_open (URLContext * h, const char *filename, int flags)
/* we don't support R/W together */
if (flags != URL_RDONLY && flags != URL_WRONLY) {
g_warning ("Only read-only or write-only are supported");
GST_WARNING ("Only read-only or write-only are supported");
return -EINVAL;
}
if (sscanf (&filename[12], "%p", &pad) != 1) {
g_warning ("could not decode pad from %s", filename);
GST_WARNING ("could not decode pad from %s", filename);
return -EIO;
}
@ -75,16 +75,15 @@ gst_ffmpegdata_open (URLContext * h, const char *filename, int flags)
switch (flags) {
case URL_RDONLY:
g_return_val_if_fail (GST_PAD_IS_SINK (pad), -EINVAL);
info->bs = gst_bytestream_new (pad);
break;
case URL_WRONLY:
g_return_val_if_fail (GST_PAD_IS_SRC (pad), -EINVAL);
info->bs = NULL;
break;
}
info->eos = FALSE;
info->pad = pad;
info->offset = 0;
h->priv_data = (void *) info;
h->is_streamed = FALSE;
@ -96,79 +95,20 @@ gst_ffmpegdata_open (URLContext * h, const char *filename, int flags)
static int
gst_ffmpegdata_peek (URLContext * h, unsigned char *buf, int size)
{
GstByteStream *bs;
guint32 total, request;
guint8 *data;
GstProtocolInfo *info;
gboolean have_event, will_get_eos;
GstBuffer *inbuf = NULL;
int total;
g_return_val_if_fail (h->flags == URL_RDONLY, AVERROR_IO);
info = (GstProtocolInfo *) h->priv_data;
g_return_val_if_fail (h->flags == URL_RDONLY, AVERROR_IO);
bs = info->bs;
if (info->eos)
return 0;
do {
have_event = FALSE, will_get_eos = FALSE;
/* prevent EOS */
if (gst_bytestream_tell (bs) + size >= gst_bytestream_length (bs)) {
request = (int) (gst_bytestream_length (bs) - gst_bytestream_tell (bs));
will_get_eos = TRUE;
} else {
request = size;
}
if (request > 0) {
total = gst_bytestream_peek_bytes (bs, &data, request);
} else {
total = 0;
}
if (total < request) {
GstEvent *event;
guint32 remaining;
gst_bytestream_get_status (bs, &remaining, &event);
if (!event) {
g_warning ("gstffmpegprotocol: no bytestream event");
return total;
}
GST_LOG ("Reading (req %d, got %d) gave event of type %d",
request, total, GST_EVENT_TYPE (event));
switch (GST_EVENT_TYPE (event)) {
case GST_EVENT_DISCONTINUOUS:
gst_event_unref (event);
break;
case GST_EVENT_EOS:
g_warning ("Unexpected/unwanted eos in data function");
info->eos = TRUE;
have_event = TRUE;
gst_event_unref (event);
break;
case GST_EVENT_FLUSH:
gst_event_unref (event);
break;
case GST_EVENT_INTERRUPT:
have_event = TRUE;
gst_event_unref (event);
break;
default:
gst_pad_event_default (info->pad, event);
break;
}
} else {
GST_DEBUG ("got data (%d bytes)", request);
if (will_get_eos)
info->eos = TRUE;
}
} while ((!info->eos && total != request) && !have_event);
memcpy (buf, data, total);
if (gst_pad_pull_range(info->pad, info->offset, (guint) size, &inbuf) != GST_FLOW_OK) {
total = 0;
} else {
total = (gint) GST_BUFFER_SIZE (inbuf);
memcpy (buf, GST_BUFFER_DATA (inbuf), total);
gst_buffer_unref (inbuf);
}
return total;
}
@ -177,17 +117,14 @@ static int
gst_ffmpegdata_read (URLContext * h, unsigned char *buf, int size)
{
gint res;
GstByteStream *bs;
GstProtocolInfo *info;
GST_DEBUG ("Reading %d bytes of data", size);
info = (GstProtocolInfo *) h->priv_data;
bs = info->bs;
res = gst_ffmpegdata_peek (h, buf, size);
if (res > 0) {
gst_bytestream_flush_fast (bs, res);
}
GST_DEBUG ("Reading %d bytes of data at position %lld", size, info->offset);
res = gst_ffmpegdata_peek(h, buf, size);
info->offset += res;
GST_DEBUG ("Returning %d bytes", res);
@ -206,37 +143,18 @@ gst_ffmpegdata_write (URLContext * h, unsigned char *buf, int size)
g_return_val_if_fail (h->flags != URL_RDONLY, -EIO);
/* create buffer and push data further */
outbuf = gst_buffer_new_and_alloc (size);
GST_BUFFER_SIZE (outbuf) = size;
if (gst_pad_alloc_buffer_and_set_caps(info->pad,
info->offset,
size, GST_PAD_CAPS (info->pad),
&outbuf) != GST_FLOW_OK)
return 0;
memcpy (GST_BUFFER_DATA (outbuf), buf, size);
if (info->set_streamheader) {
GstCaps *caps = gst_pad_get_caps (info->pad);
GstStructure *structure = gst_caps_get_structure (caps, 0);
GValue list = { 0 }, value = { 0 };
GST_DEBUG ("Using buffer (size %i) as streamheader", size);
g_value_init (&list, GST_TYPE_FIXED_LIST);
GST_BUFFER_FLAG_SET (outbuf, GST_BUFFER_IN_CAPS);
g_value_init (&value, GST_TYPE_BUFFER);
g_value_set_boxed (&value, outbuf);
gst_value_list_append_value (&list, &value);
g_value_unset (&value);
gst_structure_set_value (structure, "streamheader", &list);
g_value_unset (&list);
gst_pad_try_set_caps (info->pad, caps);
/* only set the first buffer */
info->set_streamheader = FALSE;
}
gst_pad_push (info->pad, GST_DATA (outbuf));
if (gst_pad_push(info->pad, outbuf) != GST_FLOW_OK)
return 0;
info->offset += size;
return size;
}
@ -251,103 +169,39 @@ gst_ffmpegdata_seek (URLContext * h, offset_t pos, int whence)
info = (GstProtocolInfo *) h->priv_data;
if (h->flags == URL_RDONLY) {
/* get data (typefind hack) */
if (gst_bytestream_tell (info->bs) != gst_bytestream_length (info->bs)) {
gchar buf;
gst_ffmpegdata_peek (h, &buf, 1);
}
/* hack in ffmpeg to get filesize... */
if (whence == SEEK_END && pos == -1)
return gst_bytestream_length (info->bs) - 1;
else if (whence == SEEK_END && pos == 0)
return gst_bytestream_length (info->bs);
/* another hack to get the current position... */
else if (whence == SEEK_CUR && pos == 0)
return gst_bytestream_tell (info->bs);
}
switch (whence) {
case SEEK_SET:
seek_type = GST_SEEK_METHOD_SET;
break;
case SEEK_CUR:
seek_type = GST_SEEK_METHOD_CUR;
break;
case SEEK_END:
seek_type = GST_SEEK_METHOD_END;
break;
default:
g_assert (0);
break;
}
switch (h->flags) {
case URL_RDONLY: {
GstEvent *event;
guint8 *data;
guint32 remaining;
/* handle discont */
gst_bytestream_seek (info->bs, pos, seek_type);
/* prevent eos */
if (gst_bytestream_tell (info->bs) ==
gst_bytestream_length (info->bs)) {
info->eos = TRUE;
break;
case URL_RDONLY:
{
/* sinkpad */
switch (whence) {
case SEEK_SET:
info->offset = (guint64) pos;
break;
case SEEK_CUR:
info->offset += pos;
break;
case SEEK_END:
GST_WARNING ("Can't handle SEEK_END yet");
default:
break;
}
info->eos = FALSE;
while (gst_bytestream_peek_bytes (info->bs, &data, 1) == 0) {
gst_bytestream_get_status (info->bs, &remaining, &event);
if (!event) {
g_warning ("no data, no event - panic!");
return -1;
}
switch (GST_EVENT_TYPE (event)) {
case GST_EVENT_EOS:
g_warning ("unexpected/unwanted EOS event after seek");
info->eos = TRUE;
gst_event_unref (event);
return -1;
case GST_EVENT_DISCONTINUOUS:
gst_event_unref (event); /* we expect this */
break;
case GST_EVENT_FLUSH:
break;
case GST_EVENT_INTERRUPT:
gst_event_unref (event);
return -1;
default:
gst_pad_event_default (info->pad, event);
break;
}
}
newpos = gst_bytestream_tell (info->bs);
break;
/* FIXME : implement case for push-based behaviour */
newpos = info->offset;
}
case URL_WRONLY:
gst_pad_push (info->pad,
GST_DATA (gst_event_new_seek (seek_type | GST_FORMAT_BYTES, pos)));
/* this is screwy because there might be queues or scheduler-queued
* buffers... Argh! */
if (whence == SEEK_SET) {
newpos = pos;
} else {
g_warning ("Writer reposition: implement me\n");
newpos = 0;
}
break;
default:
g_assert (0);
break;
break;
case URL_WRONLY:
{
/* srcpad */
/* FIXME : implement */
newpos = info->offset;
}
break;
default:
g_assert(0);
break;
}
GST_DEBUG ("Now at offset %lld", info->offset);
return newpos;
}
@ -361,20 +215,15 @@ gst_ffmpegdata_close (URLContext * h)
GST_LOG ("Closing file");
switch (h->flags) {
case URL_WRONLY:{
/* send EOS - that closes down the stream */
GstEvent *event = gst_event_new (GST_EVENT_EOS);
gst_pad_push (info->pad, GST_DATA (event));
}
break;
case URL_RDONLY:
/* unref bytestream */
gst_bytestream_destroy (info->bs);
break;
case URL_WRONLY:{
/* send EOS - that closes down the stream */
gst_pad_push_event (info->pad, gst_event_new_eos());
}
break;
default:
break;
}
/* clean up data */
g_free (info);