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ext/ffmpeg/gstffmpegdec.c: Don't crash in debug message by dereferencing the NULL buffer gst_ffmpegdec_frame() gets p...
Original commit message from CVS: * ext/ffmpeg/gstffmpegdec.c: (gst_ffmpegdec_frame), (gst_ffmpegdec_sink_event): Don't crash in debug message by dereferencing the NULL buffer gst_ffmpegdec_frame() gets passed on EOS. Take STREAM_LOCK for EOS, TAG, NEWSEGMENT and FLUSH_STOP events.
This commit is contained in:
Tim-Philipp Müller
parent
b91552ca4a
commit
b094df3973
3 changed files with 215 additions and 179 deletions
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@ -1,3 +1,11 @@
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2005-11-14 Tim-Philipp Müller <tim at centricular dot net>
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* ext/ffmpeg/gstffmpegdec.c: (gst_ffmpegdec_frame),
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(gst_ffmpegdec_sink_event):
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Don't crash in debug message by dereferencing the NULL buffer
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gst_ffmpegdec_frame() gets passed on EOS. Take STREAM_LOCK for
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EOS, TAG, NEWSEGMENT and FLUSH_STOP events.
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2005-11-11 Thomas Vander Stichele <thomas at apestaart dot org>
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* configure.ac: back to HEAD
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2
common
2
common
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@ -1 +1 @@
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Subproject commit 959da4a43c2e6218eb4f43e8c7e29c1db4157db1
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Subproject commit 657b549dfb640a76f3d7ab7676e453c801a83dca
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@ -51,13 +51,16 @@ struct _GstFFMpegDec
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AVCodecContext *context;
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AVFrame *picture;
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gboolean opened;
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union {
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struct {
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union
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{
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struct
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{
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gint width, height;
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gdouble fps, old_fps;
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enum PixelFormat pix_fmt;
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} video;
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struct {
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struct
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{
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gint channels, samplerate;
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} audio;
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} format;
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@ -119,7 +122,7 @@ static void gst_ffmpegdec_class_init (GstFFMpegDecClass * klass);
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static void gst_ffmpegdec_init (GstFFMpegDec * ffmpegdec);
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static void gst_ffmpegdec_dispose (GObject * object);
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static gboolean gst_ffmpegdec_query (GstPad * pad, GstQuery *query);
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static gboolean gst_ffmpegdec_query (GstPad * pad, GstQuery * query);
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static gboolean gst_ffmpegdec_event (GstPad * pad, GstEvent * event);
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static gboolean gst_ffmpegdec_setcaps (GstPad * pad, GstCaps * caps);
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@ -305,7 +308,7 @@ gst_ffmpegdec_dispose (GObject * object)
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}
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static gboolean
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gst_ffmpegdec_query (GstPad * pad, GstQuery *query)
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gst_ffmpegdec_query (GstPad * pad, GstQuery * query)
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{
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GstFFMpegDec *ffmpegdec;
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GstPad *peer;
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@ -366,7 +369,7 @@ gst_ffmpegdec_event (GstPad * pad, GstEvent * event)
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}
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static void
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gst_ffmpegdec_close (GstFFMpegDec *ffmpegdec)
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gst_ffmpegdec_close (GstFFMpegDec * ffmpegdec)
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{
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if (!ffmpegdec->opened)
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return;
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@ -404,7 +407,7 @@ gst_ffmpegdec_close (GstFFMpegDec *ffmpegdec)
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}
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static gboolean
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gst_ffmpegdec_open (GstFFMpegDec *ffmpegdec)
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gst_ffmpegdec_open (GstFFMpegDec * ffmpegdec)
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{
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GstFFMpegDecClass *oclass =
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(GstFFMpegDecClass *) (G_OBJECT_GET_CLASS (ffmpegdec));
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@ -480,8 +483,7 @@ gst_ffmpegdec_setcaps (GstPad * pad, GstCaps * caps)
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gst_ffmpeg_caps_with_codecid (oclass->in_plugin->id,
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oclass->in_plugin->type, caps, ffmpegdec->context);
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if (!ffmpegdec->context->time_base.den ||
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!ffmpegdec->context->time_base.num) {
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if (!ffmpegdec->context->time_base.den || !ffmpegdec->context->time_base.num) {
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GST_DEBUG ("forcing 25/1 framerate");
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ffmpegdec->context->time_base.num = 1;
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ffmpegdec->context->time_base.den = 25;
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@ -541,12 +543,11 @@ gst_ffmpegdec_get_buffer (AVCodecContext * context, AVFrame * picture)
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switch (context->codec_type) {
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case CODEC_TYPE_VIDEO:
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avcodec_align_dimensions(context, &width, &height);
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avcodec_align_dimensions (context, &width, &height);
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bufsize = avpicture_get_size (context->pix_fmt,
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width, height);
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bufsize = avpicture_get_size (context->pix_fmt, width, height);
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if((width != context->width) || (height != context->height)) {
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if ((width != context->width) || (height != context->height)) {
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#ifdef FORCE_OUR_GET_BUFFER
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context->width = width;
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context->height = height;
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@ -555,7 +556,7 @@ gst_ffmpegdec_get_buffer (AVCodecContext * context, AVFrame * picture)
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ffmpegdec->context->get_buffer = avcodec_default_get_buffer;
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ffmpegdec->context->release_buffer = avcodec_default_release_buffer;
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return avcodec_default_get_buffer(context, picture);
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return avcodec_default_get_buffer (context, picture);
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#endif
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}
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@ -563,7 +564,7 @@ gst_ffmpegdec_get_buffer (AVCodecContext * context, AVFrame * picture)
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if (!gst_ffmpegdec_negotiate (ffmpegdec)) {
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GST_ELEMENT_ERROR (ffmpegdec, CORE, NEGOTIATION, (NULL),
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("Failed to link ffmpeg decoder to next element"));
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return avcodec_default_get_buffer(context, picture);
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return avcodec_default_get_buffer (context, picture);
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}
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if (gst_pad_alloc_buffer (ffmpegdec->srcpad, GST_BUFFER_OFFSET_NONE,
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@ -678,20 +679,17 @@ gst_ffmpegdec_negotiate (GstFFMpegDec * ffmpegdec)
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gst_structure_set (gst_caps_get_structure (caps, 0),
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"pixel-aspect-ratio", GST_TYPE_FRACTION,
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ffmpegdec->context->sample_aspect_ratio.num,
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ffmpegdec->context->sample_aspect_ratio.den,
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NULL);
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ffmpegdec->context->sample_aspect_ratio.den, NULL);
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} else if (ffmpegdec->par) {
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GST_DEBUG ("passing on pixel-aspect-ratio from sink");
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gst_structure_set (gst_caps_get_structure (caps, 0),
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"pixel-aspect-ratio", GST_TYPE_FRACTION,
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gst_value_get_fraction_numerator (ffmpegdec->par),
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gst_value_get_fraction_denominator (ffmpegdec->par),
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NULL);
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gst_value_get_fraction_denominator (ffmpegdec->par), NULL);
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}
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}
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if (caps == NULL ||
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!gst_pad_set_caps (ffmpegdec->srcpad, caps)) {
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if (caps == NULL || !gst_pad_set_caps (ffmpegdec->srcpad, caps)) {
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GST_ELEMENT_ERROR (ffmpegdec, CORE, NEGOTIATION, (NULL),
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("Failed to link ffmpeg decoder (%s) to next element",
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oclass->in_plugin->name));
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@ -721,9 +719,9 @@ gst_ffmpegdec_frame (GstFFMpegDec * ffmpegdec,
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return -1;
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GST_DEBUG_OBJECT (ffmpegdec,
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"data:%p, size:%d, *in_ts:%"GST_TIME_FORMAT" inbuf:%p inbuf.ts:%"GST_TIME_FORMAT,
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data, size, GST_TIME_ARGS (*in_ts), inbuf,
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GST_TIME_ARGS (GST_BUFFER_TIMESTAMP (inbuf)));
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"data:%p, size:%d, *in_ts:%" GST_TIME_FORMAT " inbuf:%p inbuf.ts:%"
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GST_TIME_FORMAT, data, size, GST_TIME_ARGS (*in_ts), inbuf,
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GST_TIME_ARGS ((inbuf) ? GST_BUFFER_TIMESTAMP (inbuf) : 0));
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ffmpegdec->context->frame_number++;
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@ -742,8 +740,7 @@ gst_ffmpegdec_frame (GstFFMpegDec * ffmpegdec,
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if (ffmpegdec->picture->pict_type == FF_I_TYPE) {
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ffmpegdec->waiting_for_key = FALSE;
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} else {
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GST_WARNING_OBJECT (ffmpegdec,
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"Dropping non-keyframe (seek/init)");
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GST_WARNING_OBJECT (ffmpegdec, "Dropping non-keyframe (seek/init)");
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have_data = 0;
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break;
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}
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@ -757,7 +754,7 @@ gst_ffmpegdec_frame (GstFFMpegDec * ffmpegdec,
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((ffmpegdec->picture->pict_type == FF_I_TYPE ||
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!GST_CLOCK_TIME_IS_VALID (ffmpegdec->next_ts)) &&
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GST_CLOCK_TIME_IS_VALID (*in_ts))) {
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GST_DEBUG_OBJECT (ffmpegdec, "setting next_ts to %"GST_TIME_FORMAT,
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GST_DEBUG_OBJECT (ffmpegdec, "setting next_ts to %" GST_TIME_FORMAT,
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GST_TIME_ARGS (*in_ts));
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ffmpegdec->next_ts = *in_ts;
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*in_ts = GST_CLOCK_TIME_NONE;
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@ -769,11 +766,12 @@ gst_ffmpegdec_frame (GstFFMpegDec * ffmpegdec,
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ffmpegdec->synctime = GST_CLOCK_TIME_NONE;
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} else {
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GST_WARNING_OBJECT (ffmpegdec,
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"Dropping frame for synctime %" GST_TIME_FORMAT ", expected(next_ts) %"
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GST_TIME_FORMAT, GST_TIME_ARGS (ffmpegdec->synctime),
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"Dropping frame for synctime %" GST_TIME_FORMAT
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", expected(next_ts) %" GST_TIME_FORMAT,
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GST_TIME_ARGS (ffmpegdec->synctime),
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GST_TIME_ARGS (ffmpegdec->next_ts));
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if (ffmpegdec->last_buffer)
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gst_buffer_unref(ffmpegdec->last_buffer);
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gst_buffer_unref (ffmpegdec->last_buffer);
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have_data = 0;
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/* don´t break here! Timestamps are updated below */
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}
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@ -793,13 +791,18 @@ gst_ffmpegdec_frame (GstFFMpegDec * ffmpegdec,
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ffmpegdec->last_buffer = NULL;
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} else {
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AVPicture pic;
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gint fsize = gst_ffmpeg_avpicture_get_size (ffmpegdec->context->pix_fmt,
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gint fsize =
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gst_ffmpeg_avpicture_get_size (ffmpegdec->context->pix_fmt,
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ffmpegdec->context->width, ffmpegdec->context->height);
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if (!gst_ffmpegdec_negotiate (ffmpegdec))
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return -1;
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if ((*ret = gst_pad_alloc_buffer (ffmpegdec->srcpad, GST_BUFFER_OFFSET_NONE, fsize, GST_PAD_CAPS (ffmpegdec->srcpad), &outbuf)) != GST_FLOW_OK)
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if ((*ret =
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gst_pad_alloc_buffer (ffmpegdec->srcpad,
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GST_BUFFER_OFFSET_NONE, fsize,
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GST_PAD_CAPS (ffmpegdec->srcpad),
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&outbuf)) != GST_FLOW_OK)
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return -1;
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/* original ffmpeg code does not handle odd sizes correctly.
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@ -814,8 +817,7 @@ gst_ffmpegdec_frame (GstFFMpegDec * ffmpegdec,
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gst_ffmpeg_img_convert (&pic, ffmpegdec->context->pix_fmt,
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(AVPicture *) ffmpegdec->picture,
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ffmpegdec->context->pix_fmt,
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ffmpegdec->context->width,
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ffmpegdec->context->height);
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ffmpegdec->context->width, ffmpegdec->context->height);
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}
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ffmpegdec->waiting_for_key = FALSE;
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@ -839,7 +841,8 @@ gst_ffmpegdec_frame (GstFFMpegDec * ffmpegdec,
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/* Take repeat_pict into account */
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GST_BUFFER_DURATION (outbuf) += GST_BUFFER_DURATION (outbuf)
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* ffmpegdec->picture->repeat_pict / 2;
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GST_DEBUG_OBJECT (ffmpegdec, "advancing next_ts by duration of %"GST_TIME_FORMAT,
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GST_DEBUG_OBJECT (ffmpegdec,
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"advancing next_ts by duration of %" GST_TIME_FORMAT,
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GST_TIME_ARGS (GST_BUFFER_DURATION (outbuf)));
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ffmpegdec->next_ts += GST_BUFFER_DURATION (outbuf);
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} else {
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@ -867,7 +870,7 @@ gst_ffmpegdec_frame (GstFFMpegDec * ffmpegdec,
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/* Take repeat_pict into account */
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dur += dur * ffmpegdec->picture->repeat_pict / 2;
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GST_DEBUG_OBJECT (ffmpegdec,
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"Advancing next_ts by dur:%"GST_TIME_FORMAT,
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"Advancing next_ts by dur:%" GST_TIME_FORMAT,
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GST_TIME_ARGS (dur));
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ffmpegdec->next_ts += dur;
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} else {
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@ -948,43 +951,65 @@ gst_ffmpegdec_sink_event (GstPad * pad, GstEvent * event)
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GstFFMpegDec *ffmpegdec = (GstFFMpegDec *) GST_OBJECT_PARENT (pad);
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GstFFMpegDecClass *oclass =
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(GstFFMpegDecClass *) (G_OBJECT_GET_CLASS (ffmpegdec));
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gboolean unlock = FALSE;
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gboolean ret;
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GST_DEBUG_OBJECT (ffmpegdec,
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"Handling event of type %d", GST_EVENT_TYPE (event));
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GST_DEBUG_OBJECT (ffmpegdec, "Handling %s event",
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GST_EVENT_TYPE_NAME (event));
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switch (GST_EVENT_TYPE (event)) {
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case GST_EVENT_EOS:
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case GST_EVENT_EOS:{
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GST_STREAM_LOCK (pad);
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unlock = TRUE;
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if (oclass->in_plugin->capabilities & CODEC_CAP_DELAY) {
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gint have_data, len, try = 0;
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do {
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GstFlowReturn ret;
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len = gst_ffmpegdec_frame (ffmpegdec, NULL, 0, &have_data,
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&ffmpegdec->next_ts, NULL, &ret);
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if (len < 0 || have_data == 0)
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break;
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} while (try++ < 10);
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}
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goto forward;
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case GST_EVENT_FLUSH_STOP:
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break;
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}
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case GST_EVENT_TAG:{
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GST_STREAM_LOCK (pad);
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unlock = TRUE;
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break;
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}
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case GST_EVENT_FLUSH_STOP:{
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GST_STREAM_LOCK (pad);
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unlock = TRUE;
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if (ffmpegdec->opened) {
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avcodec_flush_buffers (ffmpegdec->context);
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}
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goto forward;
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case GST_EVENT_NEWSEGMENT: {
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break;
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}
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case GST_EVENT_NEWSEGMENT:{
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gint64 base, start, end;
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gdouble rate;
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GstFormat fmt;
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gst_event_parse_newsegment (event, NULL, &rate, &fmt, &start, &end, &base);
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GST_STREAM_LOCK (pad);
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unlock = TRUE;
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gst_event_parse_newsegment (event, NULL, &rate, &fmt, &start, &end,
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&base);
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if (fmt == GST_FORMAT_TIME) {
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ffmpegdec->next_ts = start;
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GST_DEBUG_OBJECT (ffmpegdec, "Discont to time (next_ts) %" GST_TIME_FORMAT" -- %"GST_TIME_FORMAT,
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GST_TIME_ARGS (start), GST_TIME_ARGS (end));
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GST_DEBUG_OBJECT (ffmpegdec,
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"Discont to time (next_ts) %" GST_TIME_FORMAT " -- %"
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GST_TIME_FORMAT, GST_TIME_ARGS (start), GST_TIME_ARGS (end));
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} else if (ffmpegdec->context->bit_rate && fmt == GST_FORMAT_BYTES) {
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ffmpegdec->next_ts = start * GST_SECOND / ffmpegdec->context->bit_rate;
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GST_DEBUG_OBJECT (ffmpegdec,
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"Newsegment in bytes from byte %" G_GINT64_FORMAT
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" (time %" GST_TIME_FORMAT ") to byte % "G_GINT64_FORMAT
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" (time %" GST_TIME_FORMAT ") to byte % " G_GINT64_FORMAT
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" (time %" GST_TIME_FORMAT ")",
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start, GST_TIME_ARGS (ffmpegdec->next_ts),
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end,
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@ -1009,14 +1034,18 @@ gst_ffmpegdec_sink_event (GstPad * pad, GstEvent * event)
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}
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ffmpegdec->waiting_for_key = TRUE;
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ffmpegdec->synctime = ffmpegdec->next_ts;
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/* fall-through */
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break;
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}
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default:
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forward:
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return gst_pad_event_default (ffmpegdec->sinkpad, event);
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break;
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}
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return TRUE;
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ret = gst_pad_event_default (ffmpegdec->sinkpad, event);
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if (unlock)
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GST_STREAM_UNLOCK (pad);
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return ret;
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}
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static GstFlowReturn
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@ -1034,8 +1063,9 @@ gst_ffmpegdec_chain (GstPad * pad, GstBuffer * inbuf)
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goto not_negotiated;
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GST_DEBUG_OBJECT (ffmpegdec,
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"Received new data of size %d, time %" GST_TIME_FORMAT " next_ts %"GST_TIME_FORMAT,
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GST_BUFFER_SIZE (inbuf), GST_TIME_ARGS (GST_BUFFER_TIMESTAMP (inbuf)),
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"Received new data of size %d, time %" GST_TIME_FORMAT " next_ts %"
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GST_TIME_FORMAT, GST_BUFFER_SIZE (inbuf),
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GST_TIME_ARGS (GST_BUFFER_TIMESTAMP (inbuf)),
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GST_TIME_ARGS (ffmpegdec->next_ts));
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/* parse cache joining */
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@ -1068,8 +1098,7 @@ gst_ffmpegdec_chain (GstPad * pad, GstBuffer * inbuf)
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ffpts = gst_ffmpeg_time_gst_to_ff (in_ts, ffmpegdec->context->time_base);
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res = av_parser_parse (ffmpegdec->pctx, ffmpegdec->context,
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&data, &size, bdata, bsize,
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ffpts, ffpts);
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&data, &size, bdata, bsize, ffpts, ffpts);
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GST_DEBUG_OBJECT (ffmpegdec, "Parsed video frame, res=%d, size=%d",
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res, size);
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@ -1101,8 +1130,7 @@ gst_ffmpegdec_chain (GstPad * pad, GstBuffer * inbuf)
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}
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} while (bsize > 0);
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|
||||
if ((ffmpegdec->pctx || oclass->in_plugin->id == CODEC_ID_MP3) &&
|
||||
bsize > 0) {
|
||||
if ((ffmpegdec->pctx || oclass->in_plugin->id == CODEC_ID_MP3) && bsize > 0) {
|
||||
GST_DEBUG_OBJECT (ffmpegdec, "Keeping %d bytes of data", bsize);
|
||||
|
||||
ffmpegdec->pcache = gst_buffer_create_sub (inbuf,
|
||||
|
|
@ -1155,8 +1183,7 @@ gst_ffmpegdec_set_property (GObject * object,
|
|||
|
||||
switch (prop_id) {
|
||||
case ARG_LOWRES:
|
||||
ffmpegdec->lowres = ffmpegdec->context->lowres =
|
||||
g_value_get_enum (value);
|
||||
ffmpegdec->lowres = ffmpegdec->context->lowres = g_value_get_enum (value);
|
||||
break;
|
||||
case ARG_SKIPFRAME:
|
||||
ffmpegdec->hurry_up = ffmpegdec->context->hurry_up =
|
||||
|
|
@ -1228,8 +1255,7 @@ gst_ffmpegdec_register (GstPlugin * plugin)
|
|||
|
||||
/* name */
|
||||
if (!gst_ffmpeg_get_codecid_longname (in_plugin->id)) {
|
||||
g_warning ("Add decoder %s (%d) please",
|
||||
in_plugin->name, in_plugin->id);
|
||||
g_warning ("Add decoder %s (%d) please", in_plugin->name, in_plugin->id);
|
||||
goto next;
|
||||
}
|
||||
|
||||
|
|
@ -1241,8 +1267,10 @@ gst_ffmpegdec_register (GstPlugin * plugin)
|
|||
srccaps = gst_ffmpeg_codectype_to_caps (in_plugin->type, NULL);
|
||||
}
|
||||
if (!sinkcaps || !srccaps) {
|
||||
if (sinkcaps) gst_caps_unref (sinkcaps);
|
||||
if (srccaps) gst_caps_unref (srccaps);
|
||||
if (sinkcaps)
|
||||
gst_caps_unref (sinkcaps);
|
||||
if (srccaps)
|
||||
gst_caps_unref (srccaps);
|
||||
goto next;
|
||||
}
|
||||
|
||||
|
|
|
|||
Loading…
Reference in a new issue