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Code Issues 1 Projects Releases Wiki Activity

avviddec: Don't lose frames on EOS

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have_data is not propagated from gst_ffmpegviddec_video_frame to
gst_ffmpegviddec_frame. have_data is only set to 1 in
gst_ffmpegviddec_frame if a frame pointer is passed. However, this is
not true while draining, which means that have_data from libav will be
ignored.

https://bugzilla.gnome.org/show_bug.cgi?id=734608
This commit is contained in:
Aleix Conchillo Flaqué 2014-08-11 14:16:55 +02:00 committed by Sebastian Dröge
parent dc1e69dbea
commit 1307b31e1c
1 changed files with 15 additions and 25 deletions
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38
ext/libav/gstavviddec.c
View file

@ -1181,10 +1181,10 @@ gst_avpacket_init (AVPacket * packet, guint8 * data, guint size)
*/
static gint
gst_ffmpegviddec_video_frame (GstFFMpegVidDec * ffmpegdec,
guint8 * data, guint size, GstVideoCodecFrame * frame, GstFlowReturn * ret)
guint8 * data, guint size, gint * have_data, GstVideoCodecFrame * frame,
GstFlowReturn * ret)
{
gint len = -1;
gint have_data;
gboolean mode_switch;
GstVideoCodecFrame *out_frame;
GstFFMpegVidDecVideoFrame *out_dframe;
@ -1239,10 +1239,10 @@ gst_ffmpegviddec_video_frame (GstFFMpegVidDec * ffmpegdec,
}
len = avcodec_decode_video2 (ffmpegdec->context,
ffmpegdec->picture, &have_data, &packet);
ffmpegdec->picture, have_data, &packet);
GST_DEBUG_OBJECT (ffmpegdec, "after decode: len %d, have_data %d",
len, have_data);
len, *have_data);
/* when we are in skip_frame mode, don't complain when ffmpeg returned
* no data because we told it to skip stuff. */
@ -1250,7 +1250,7 @@ gst_ffmpegviddec_video_frame (GstFFMpegVidDec * ffmpegdec,
len = 0;
/* no data, we're done */
if (len < 0 || have_data <= 0)
if (len < 0 || *have_data == 0)
goto beach;
/* get the output picture timing info again */
@ -1390,11 +1390,11 @@ negotiation_error:
static gint
gst_ffmpegviddec_frame (GstFFMpegVidDec * ffmpegdec,
guint8 * data, guint size, gint * got_data, GstVideoCodecFrame * frame,
guint8 * data, guint size, gint * have_data, GstVideoCodecFrame * frame,
GstFlowReturn * ret)
{
GstFFMpegVidDecClass *oclass;
gint have_data = 0, len = 0;
gint len = 0;
if (G_UNLIKELY (ffmpegdec->context->codec == NULL))
goto no_codec;
@ -1406,27 +1406,16 @@ gst_ffmpegviddec_frame (GstFFMpegVidDec * ffmpegdec,
oclass = (GstFFMpegVidDecClass *) (G_OBJECT_GET_CLASS (ffmpegdec));
len = gst_ffmpegviddec_video_frame (ffmpegdec, data, size, frame, ret);
len =
gst_ffmpegviddec_video_frame (ffmpegdec, data, size, have_data, frame,
ret);
if (frame && frame->output_buffer)
have_data = 1;
if (len < 0 || have_data < 0) {
if (len < 0) {
GST_WARNING_OBJECT (ffmpegdec,
"avdec_%s: decoding error (len: %d, have_data: %d)",
oclass->in_plugin->name, len, have_data);
*got_data = 0;
goto beach;
}
if (len == 0 && have_data == 0) {
*got_data = 0;
goto beach;
oclass->in_plugin->name, len, *have_data);
}
/* this is where I lost my last clue on ffmpeg... */
*got_data = 1;
beach:
return len;
/* ERRORS */
@ -1458,6 +1447,7 @@ gst_ffmpegviddec_drain (GstFFMpegVidDec * ffmpegdec)
GstFlowReturn ret;
len = gst_ffmpegviddec_frame (ffmpegdec, NULL, 0, &have_data, NULL, &ret);
if (len < 0 || have_data == 0)
break;
} while (try++ < 10);
@ -1544,7 +1534,7 @@ gst_ffmpegviddec_handle_frame (GstVideoDecoder * decoder,
break;
}
if (len == 0 && !have_data) {
if (len == 0 && have_data == 0) {
/* nothing was decoded, this could be because no data was available or
* because we were skipping frames.
* If we have no context we must exit and wait for more data, we keep the