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ext/ffmpeg/: Add simple query functions. Seeking is only cosmetic, it's not actually filled in yet (in ffmpegdec).

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Original commit message from CVS:
* ext/ffmpeg/gstffmpegdec.c: (gst_ffmpegdec_init),
(gst_ffmpegdec_query), (gst_ffmpegdec_event), (gst_ffmpegdec_open),
(gst_ffmpegdec_negotiate), (gst_ffmpegdec_chain):
* ext/ffmpeg/gstffmpegdemux.c: (gst_ffmpegdemux_init),
(gst_ffmpegdemux_close), (gst_ffmpegdemux_src_query),
(gst_ffmpegdemux_loop):
Add simple query functions. Seeking is only cosmetic, it's not
actually filled in yet (in ffmpegdec).
This commit is contained in:
Ronald S. Bultje 2005-01-18 21:33:42 +00:00
parent 3643177798
commit 1b1044122b
3 changed files with 150 additions and 34 deletions
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11
ChangeLog
View file

@ -1,3 +1,14 @@
2005-01-18 Ronald S. Bultje <rbultje@ronald.bitfreak.net>
* ext/ffmpeg/gstffmpegdec.c: (gst_ffmpegdec_init),
(gst_ffmpegdec_query), (gst_ffmpegdec_event), (gst_ffmpegdec_open),
(gst_ffmpegdec_negotiate), (gst_ffmpegdec_chain):
* ext/ffmpeg/gstffmpegdemux.c: (gst_ffmpegdemux_init),
(gst_ffmpegdemux_close), (gst_ffmpegdemux_src_query),
(gst_ffmpegdemux_loop):
Add simple query functions. Seeking is only cosmetic, it's not
actually filled in yet (in ffmpegdec).
2005-01-17 Ronald S. Bultje <rbultje@ronald.bitfreak.net>
* ext/ffmpeg/gstffmpegenc.c: (gst_ffmpegenc_init),

114
ext/ffmpeg/gstffmpegdec.c
View file

@ -49,6 +49,14 @@ struct _GstFFMpegDec
AVCodecContext *context;
AVFrame *picture;
gboolean opened;
union {
struct {
gint width, height, fps, fps_base;
} video;
struct {
gint channels, samplerate;
} audio;
} format;
/* parsing */
AVCodecParserContext *pctx;
@ -106,6 +114,10 @@ static void gst_ffmpegdec_class_init (GstFFMpegDecClass * klass);
static void gst_ffmpegdec_init (GstFFMpegDec * ffmpegdec);
static void gst_ffmpegdec_dispose (GObject * object);
static gboolean gst_ffmpegdec_query (GstPad * pad, GstQueryType type,
GstFormat * fmt, gint64 * value);
static gboolean gst_ffmpegdec_event (GstPad * pad, GstEvent * event);
static GstPadLinkReturn gst_ffmpegdec_connect (GstPad * pad,
const GstCaps * caps);
static void gst_ffmpegdec_chain (GstPad * pad, GstData * data);
@ -192,10 +204,14 @@ gst_ffmpegdec_init (GstFFMpegDec * ffmpegdec)
ffmpegdec->sinkpad = gst_pad_new_from_template (oclass->sinktempl, "sink");
gst_pad_set_link_function (ffmpegdec->sinkpad, gst_ffmpegdec_connect);
gst_pad_set_chain_function (ffmpegdec->sinkpad, gst_ffmpegdec_chain);
gst_element_add_pad (GST_ELEMENT (ffmpegdec), ffmpegdec->sinkpad);
ffmpegdec->srcpad = gst_pad_new_from_template (oclass->srctempl, "src");
gst_pad_use_explicit_caps (ffmpegdec->srcpad);
gst_element_add_pad (GST_ELEMENT (ffmpegdec), ffmpegdec->sinkpad);
gst_pad_set_event_function (ffmpegdec->srcpad,
GST_DEBUG_FUNCPTR (gst_ffmpegdec_event));
gst_pad_set_query_function (ffmpegdec->srcpad,
GST_DEBUG_FUNCPTR (gst_ffmpegdec_query));
gst_element_add_pad (GST_ELEMENT (ffmpegdec), ffmpegdec->srcpad);
/* some ffmpeg data */
@ -223,6 +239,45 @@ gst_ffmpegdec_dispose (GObject * object)
av_free (ffmpegdec->picture);
}
static gboolean
gst_ffmpegdec_query (GstPad * pad, GstQueryType type,
GstFormat * fmt, gint64 * value)
{
GstFFMpegDec *ffmpegdec = (GstFFMpegDec *) gst_pad_get_parent (pad);
GstPad *peer = GST_PAD_PEER (ffmpegdec->sinkpad);
GstFormat bfmt = GST_FORMAT_BYTES;
if (!peer)
return FALSE;
else if (gst_pad_query (peer, type, fmt, value))
return TRUE;
/* ok, do bitrate calc... */
else if ((type != GST_QUERY_POSITION && type != GST_QUERY_TOTAL) ||
*fmt != GST_FORMAT_TIME || ffmpegdec->context->bit_rate == 0 ||
!gst_pad_query (peer, type, &bfmt, value))
return FALSE;
if (ffmpegdec->pcache && type == GST_QUERY_POSITION)
*value -= GST_BUFFER_SIZE (ffmpegdec->pcache);
*value *= GST_SECOND / ffmpegdec->context->bit_rate;
return TRUE;
}
static gboolean
gst_ffmpegdec_event (GstPad * pad, GstEvent * event)
{
GstFFMpegDec *ffmpegdec = (GstFFMpegDec *) gst_pad_get_parent (pad);
GstPad *peer = GST_PAD_PEER (ffmpegdec->sinkpad);
if (!peer)
return FALSE;
else if (gst_pad_send_event (peer, event))
return TRUE;
else
return FALSE; /* .. */
}
static void
gst_ffmpegdec_close (GstFFMpegDec *ffmpegdec)
{
@ -272,10 +327,29 @@ gst_ffmpegdec_open (GstFFMpegDec *ffmpegdec)
return FALSE;
}
/* open a parser if we can - exclude mpeg4 for now... */
if (oclass->in_plugin->id != CODEC_ID_MPEG4)
/* open a parser if we can - exclude mpeg4, because it is already
* framed (divx), mp3 because it doesn't work (?) and mjpeg because
* of $(see mpeg4)... */
if (oclass->in_plugin->id != CODEC_ID_MPEG4 &&
oclass->in_plugin->id != CODEC_ID_MJPEG &&
oclass->in_plugin->id != CODEC_ID_MP3)
ffmpegdec->pctx = av_parser_init (oclass->in_plugin->id);
switch (oclass->in_plugin->type) {
case CODEC_TYPE_VIDEO:
ffmpegdec->format.video.width = 0;
ffmpegdec->format.video.height = 0;
ffmpegdec->format.video.fps = 0;
ffmpegdec->format.video.fps_base = 0;
break;
case CODEC_TYPE_AUDIO:
ffmpegdec->format.audio.samplerate = 0;
ffmpegdec->format.audio.channels = 0;
break;
default:
break;
}
return TRUE;
}
@ -400,6 +474,25 @@ gst_ffmpegdec_negotiate (GstFFMpegDec * ffmpegdec)
(GstFFMpegDecClass *) (G_OBJECT_GET_CLASS (ffmpegdec));
GstCaps *caps;
switch (oclass->in_plugin->type) {
case CODEC_TYPE_VIDEO:
if (ffmpegdec->format.video.width == ffmpegdec->context->width &&
ffmpegdec->format.video.height == ffmpegdec->context->height &&
ffmpegdec->format.video.fps == ffmpegdec->context->frame_rate &&
ffmpegdec->format.video.fps_base ==
ffmpegdec->context->frame_rate_base)
return TRUE;
break;
case CODEC_TYPE_AUDIO:
if (ffmpegdec->format.audio.samplerate ==
ffmpegdec->context->sample_rate &&
ffmpegdec->format.audio.channels == ffmpegdec->context->channels)
return TRUE;
break;
default:
break;
}
caps = gst_ffmpeg_codectype_to_caps (oclass->in_plugin->type,
ffmpegdec->context);
@ -472,12 +565,7 @@ gst_ffmpegdec_chain (GstPad * pad, GstData * _data)
/* parse cache joining */
if (ffmpegdec->pcache) {
GST_LOG ("Joining %p[%lld/%d]&&%p[%lld/%d]",
ffmpegdec->pcache, GST_BUFFER_OFFSET (ffmpegdec->pcache),
GST_BUFFER_SIZE (ffmpegdec->pcache), inbuf,
GST_BUFFER_OFFSET (inbuf), GST_BUFFER_SIZE (inbuf));
inbuf = gst_buffer_join (ffmpegdec->pcache, inbuf);
GST_LOG ("done");
ffmpegdec->pcache = NULL;
bdata = GST_BUFFER_DATA (inbuf);
bsize = GST_BUFFER_SIZE (inbuf);
@ -498,8 +586,7 @@ GST_LOG ("done");
do {
/* parse, if at all possible */
if (ffmpegdec->pctx && ffmpegdec->context->codec_id != CODEC_ID_MP3 &&
ffmpegdec->context->codec_id != CODEC_ID_MJPEG) {
if (ffmpegdec->pctx) {
gint res;
res = av_parser_parse (ffmpegdec->pctx, ffmpegdec->context,
@ -606,12 +693,10 @@ GST_LOG ("done");
if (have_data) {
GST_DEBUG ("Decoded data, now pushing");
if (!GST_PAD_CAPS (ffmpegdec->srcpad)) {
if (!gst_ffmpegdec_negotiate (ffmpegdec)) {
gst_buffer_unref (outbuf);
return;
}
}
if (GST_PAD_IS_USABLE (ffmpegdec->srcpad))
gst_pad_push (ffmpegdec->srcpad, GST_DATA (outbuf));
@ -626,7 +711,8 @@ GST_LOG ("done");
}
} while (bsize > 0);
if (ffmpegdec->pctx && bsize > 0) {
if ((ffmpegdec->pctx || oclass->in_plugin->id == CODEC_ID_MP3) &&
bsize > 0) {
GST_DEBUG ("Keeping %d bytes of data", bsize);
ffmpegdec->pcache = gst_buffer_create_sub (inbuf,

43
ext/ffmpeg/gstffmpegdemux.c
View file

@ -219,7 +219,7 @@ gst_ffmpegdemux_init (GstFFMpegDemux * demux)
for (n = 0; n < MAX_STREAMS; n++) {
demux->srcpads[n] = NULL;
demux->handled[n] = FALSE;
demux->last_ts[n] = 0;
demux->last_ts[n] = GST_CLOCK_TIME_NONE;
}
demux->videopads = 0;
demux->audiopads = 0;
@ -240,7 +240,7 @@ gst_ffmpegdemux_close (GstFFMpegDemux * demux)
demux->srcpads[n] = NULL;
}
demux->handled[n] = FALSE;
demux->last_ts[n] = 0;
demux->last_ts[n] = GST_CLOCK_TIME_NONE;
}
demux->videopads = 0;
demux->audiopads = 0;
@ -358,44 +358,62 @@ gst_ffmpegdemux_src_query (GstPad * pad,
{
GstFFMpegDemux *demux = (GstFFMpegDemux *) gst_pad_get_parent (pad);
AVStream *stream = gst_ffmpegdemux_stream_from_pad (pad);
gboolean res = TRUE;
if (!stream || (*fmt == GST_FORMAT_DEFAULT &&
stream->codec.codec_type != CODEC_TYPE_VIDEO))
return FALSE;
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) {
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;
} /* else fall-through */
default:
res = FALSE;
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:
res = FALSE;
break;
}
break;
default:
res = FALSE;
break;
}
@ -629,6 +647,7 @@ gst_ffmpegdemux_loop (GstElement * element)
if (pkt.pts != AV_NOPTS_VALUE) {
GST_BUFFER_TIMESTAMP (outbuf) = (gdouble) (pkt.pts +
stream->start_time) * GST_SECOND / AV_TIME_BASE;
demux->last_ts[stream->index] = GST_BUFFER_TIMESTAMP (outbuf);
}
if (pkt.flags & PKT_FLAG_KEY) {