diff options
| author | Enrique Ocaña González <eocanha@igalia.com> | 2016-10-24 16:56:31 +0000 |
|---|---|---|
| committer | Sebastian Dröge <sebastian@centricular.com> | 2016-12-05 11:05:50 +0200 |
| commit | a2adb7e305ab2d0a04f2b9549fead89f539fd623 (patch) | |
| tree | 52f089bcee21f5690d772ed707d8651d6b534878 | |
| parent | 235d243dee04d8260774c524a985f58bf20ed61f (diff) | |
qtdemux: Use the tfdt decode time on byte streams when it's significantly different than the time in the last sample
We consider there's a sifnificant difference when it's larger than on second
or than half the duration of the last processed fragment in case the latter is
larger.
https://bugzilla.gnome.org/show_bug.cgi?id=754230
| -rw-r--r-- | gst/isomp4/qtdemux.c | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/gst/isomp4/qtdemux.c b/gst/isomp4/qtdemux.c index 13b3620cd..c2cafa84e 100644 --- a/gst/isomp4/qtdemux.c +++ b/gst/isomp4/qtdemux.c @@ -95,6 +95,8 @@ #define STREAM_IS_EOS(s) (s->time_position == GST_CLOCK_TIME_NONE) +#define ABSDIFF(x, y) ( (x) > (y) ? ((x) - (y)) : ((y) - (x)) ) + GST_DEBUG_CATEGORY (qtdemux_debug); typedef struct _QtDemuxSegment QtDemuxSegment; @@ -251,6 +253,7 @@ struct _QtDemuxStream guint32 n_samples_moof; /* sample count in a moof */ guint64 duration_moof; /* duration in timescale of a moof, used for figure out * the framerate of fragmented format stream */ + guint64 duration_last_moof; guint32 offset_in_sample; /* Offset in the current sample, used for * streams which have got exceedingly big @@ -1845,6 +1848,7 @@ _create_stream (void) stream->n_samples_moof = 0; stream->duration_moof = 0; stream->alignment = 1; + stream->duration_last_moof = 0; g_queue_init (&stream->protection_scheme_event_queue); return stream; } @@ -2377,6 +2381,7 @@ gst_qtdemux_stream_flush_samples_data (GstQTDemux * qtdemux, stream->n_samples_moof = 0; stream->duration_moof = 0; + stream->duration_last_moof = 0; } static void @@ -3122,6 +3127,25 @@ qtdemux_parse_trun (GstQTDemux * qtdemux, GstByteReader * trun, stream->samples[stream->n_samples - 1].timestamp + stream->samples[stream->n_samples - 1].duration; + /* If this is a GST_FORMAT_BYTES stream and there's a significant + * difference (1 sec.) between decode_ts and timestamp, prefer the + * former */ + if (!qtdemux->upstream_format_is_time + && ABSDIFF (decode_ts, timestamp) > + MAX (stream->duration_last_moof / 2, + GSTTIME_TO_QTSTREAMTIME (stream, GST_SECOND))) { + GST_INFO_OBJECT (qtdemux, + "decode_ts (%" GST_TIME_FORMAT ") and timestamp (%" GST_TIME_FORMAT + ") are significantly different (more than %" GST_TIME_FORMAT + "), using decode_ts", + GST_TIME_ARGS (QTSTREAMTIME_TO_GSTTIME (stream, decode_ts)), + GST_TIME_ARGS (QTSTREAMTIME_TO_GSTTIME (stream, timestamp)), + GST_TIME_ARGS (QTSTREAMTIME_TO_GSTTIME (stream, + MAX (stream->duration_last_moof / 2, + GSTTIME_TO_QTSTREAMTIME (stream, GST_SECOND))))); + timestamp = decode_ts; + } + gst_ts = QTSTREAMTIME_TO_GSTTIME (stream, timestamp); GST_INFO_OBJECT (qtdemux, "first sample ts %" GST_TIME_FORMAT " (extends previous samples)", GST_TIME_ARGS (gst_ts)); @@ -3788,6 +3812,7 @@ qtdemux_parse_moof (GstQTDemux * qtdemux, const guint8 * buffer, guint length, /* initialise moof sample data */ stream->n_samples_moof = 0; + stream->duration_last_moof = stream->duration_moof; stream->duration_moof = 0; /* Track Run node */ |