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videodecoder: Store buffer information even without PTS

Browse source 
When a PTS is not set, we still want to store the rest of the
buffer information, or else we lose important things like the
duration or buffer flags when parsing.
This commit is contained in:
Jan Schmidt 2017-03-04 00:10:27 +11:00
parent e575be6dc6
commit fcb63e77a9
1 changed files with 32 additions and 17 deletions
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49
gst-libs/gst/video/gstvideodecoder.c
View file

@ -1915,13 +1915,23 @@ timestamp_free (Timestamp * ts)
}
static void
gst_video_decoder_add_timestamp (GstVideoDecoder * decoder, GstBuffer * buffer)
gst_video_decoder_add_buffer_info (GstVideoDecoder * decoder,
GstBuffer * buffer)
{
GstVideoDecoderPrivate *priv = decoder->priv;
Timestamp *ts;
ts = g_slice_new (Timestamp);
if (!GST_BUFFER_PTS_IS_VALID (buffer) &&
!GST_BUFFER_DTS_IS_VALID (buffer) &&
!GST_BUFFER_DURATION_IS_VALID (buffer) &&
GST_BUFFER_FLAGS (buffer) == 0) {
/* Save memory - don't bother storing info
* for buffers with no distinguishing info */
return;
}
GST_LOG_OBJECT (decoder,
"adding PTS %" GST_TIME_FORMAT " DTS %" GST_TIME_FORMAT
" (offset:%" G_GUINT64_FORMAT ")",
@ -1938,7 +1948,7 @@ gst_video_decoder_add_timestamp (GstVideoDecoder * decoder, GstBuffer * buffer)
}
static void
gst_video_decoder_get_timestamp_at_offset (GstVideoDecoder *
gst_video_decoder_get_buffer_info_at_offset (GstVideoDecoder *
decoder, guint64 offset, GstClockTime * pts, GstClockTime * dts,
GstClockTime * duration, guint * flags)
{
@ -1973,9 +1983,9 @@ gst_video_decoder_get_timestamp_at_offset (GstVideoDecoder *
}
GST_LOG_OBJECT (decoder,
"got PTS %" GST_TIME_FORMAT " DTS %" GST_TIME_FORMAT " @ offs %"
"got PTS %" GST_TIME_FORMAT " DTS %" GST_TIME_FORMAT " flags %x @ offs %"
G_GUINT64_FORMAT " (wanted offset:%" G_GUINT64_FORMAT ")",
GST_TIME_ARGS (*pts), GST_TIME_ARGS (*dts), got_offset, offset);
GST_TIME_ARGS (*pts), GST_TIME_ARGS (*dts), *flags, got_offset, offset);
}
static void
@ -2124,15 +2134,16 @@ gst_video_decoder_chain_forward (GstVideoDecoder * decoder,
if (priv->current_frame == NULL)
priv->current_frame = gst_video_decoder_new_frame (decoder);
if (GST_BUFFER_PTS_IS_VALID (buf) && !priv->packetized) {
gst_video_decoder_add_timestamp (decoder, buf);
}
if (!priv->packetized)
gst_video_decoder_add_buffer_info (decoder, buf);
priv->input_offset += gst_buffer_get_size (buf);
if (priv->packetized) {
gboolean was_keyframe = FALSE;
if (!GST_BUFFER_FLAG_IS_SET (buf, GST_BUFFER_FLAG_DELTA_UNIT)) {
was_keyframe = TRUE;
GST_LOG_OBJECT (decoder, "Marking current_frame as sync point");
GST_VIDEO_CODEC_FRAME_SET_SYNC_POINT (priv->current_frame);
}
@ -2235,8 +2246,9 @@ gst_video_decoder_flush_parse (GstVideoDecoder * dec, gboolean at_eos)
GList *next = walk->next;
GST_DEBUG_OBJECT (dec, "parsing buffer %p, PTS %" GST_TIME_FORMAT
", DTS %" GST_TIME_FORMAT, buf, GST_TIME_ARGS (GST_BUFFER_PTS (buf)),
GST_TIME_ARGS (GST_BUFFER_DTS (buf)));
", DTS %" GST_TIME_FORMAT " flags %x", buf,
GST_TIME_ARGS (GST_BUFFER_PTS (buf)),
GST_TIME_ARGS (GST_BUFFER_DTS (buf)), GST_BUFFER_FLAGS (buf));
/* parse buffer, resulting frames prepended to parse_gather queue */
gst_buffer_ref (buf);
@ -2424,10 +2436,11 @@ gst_video_decoder_chain (GstPad * pad, GstObject * parent, GstBuffer * buf)
GST_LOG_OBJECT (decoder,
"chain PTS %" GST_TIME_FORMAT ", DTS %" GST_TIME_FORMAT " duration %"
GST_TIME_FORMAT " size %" G_GSIZE_FORMAT,
GST_TIME_FORMAT " size %" G_GSIZE_FORMAT " flags %x",
GST_TIME_ARGS (GST_BUFFER_PTS (buf)),
GST_TIME_ARGS (GST_BUFFER_DTS (buf)),
GST_TIME_ARGS (GST_BUFFER_DURATION (buf)), gst_buffer_get_size (buf));
GST_TIME_ARGS (GST_BUFFER_DURATION (buf)),
gst_buffer_get_size (buf), GST_BUFFER_FLAGS (buf));
GST_VIDEO_DECODER_STREAM_LOCK (decoder);
@ -3296,7 +3309,8 @@ gst_video_decoder_have_frame (GstVideoDecoder * decoder)
guint flags;
GstFlowReturn ret = GST_FLOW_OK;
GST_LOG_OBJECT (decoder, "have_frame");
GST_LOG_OBJECT (decoder, "have_frame at offset %" G_GSIZE_FORMAT,
priv->frame_offset);
GST_VIDEO_DECODER_STREAM_LOCK (decoder);
@ -3309,7 +3323,7 @@ gst_video_decoder_have_frame (GstVideoDecoder * decoder)
priv->current_frame->input_buffer = buffer;
gst_video_decoder_get_timestamp_at_offset (decoder,
gst_video_decoder_get_buffer_info_at_offset (decoder,
priv->frame_offset, &pts, &dts, &duration, &flags);
GST_BUFFER_PTS (buffer) = pts;
@ -3317,15 +3331,16 @@ gst_video_decoder_have_frame (GstVideoDecoder * decoder)
GST_BUFFER_DURATION (buffer) = duration;
GST_BUFFER_FLAGS (buffer) = flags;
if (!GST_BUFFER_FLAG_IS_SET (buffer, GST_BUFFER_FLAG_DELTA_UNIT)) {
GST_VIDEO_CODEC_FRAME_SET_SYNC_POINT (priv->current_frame);
}
GST_LOG_OBJECT (decoder, "collected frame size %d, "
"PTS %" GST_TIME_FORMAT ", DTS %" GST_TIME_FORMAT ", dur %"
GST_TIME_FORMAT, n_available, GST_TIME_ARGS (pts), GST_TIME_ARGS (dts),
GST_TIME_ARGS (duration));
if (!GST_BUFFER_FLAG_IS_SET (buffer, GST_BUFFER_FLAG_DELTA_UNIT)) {
GST_LOG_OBJECT (decoder, "Marking as sync point");
GST_VIDEO_CODEC_FRAME_SET_SYNC_POINT (priv->current_frame);
}
/* In reverse playback, just capture and queue frames for later processing */
if (decoder->input_segment.rate < 0.0) {
priv->parse_gather =