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mpegtsdemux: Ignore NULL packets as early as possible.

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This avoids:
* creating a MpegTSStream structure for nothing
* processing packet data for nothing
This commit is contained in:
Edward Hervey 2009-05-25 15:21:52 +02:00
parent f92f282874
commit 36cc757bda
1 changed files with 7 additions and 1 deletions
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8
gst/mpegdemux/gstmpegtsdemux.c
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@ -2347,7 +2347,7 @@ static FORCE_INLINE GstFlowReturn
gst_mpegts_demux_parse_transport_packet (GstMpegTSDemux * demux,
const guint8 * data)
{
GstFlowReturn ret;
GstFlowReturn ret = GST_FLOW_OK;
guint16 PID;
GstMpegTSStream *stream;
@ -2357,6 +2357,10 @@ gst_mpegts_demux_parse_transport_packet (GstMpegTSDemux * demux,
/* get PID */
PID = ((data[0] & 0x1f) << 8) | data[1];
/* Skip NULL packets */
if (G_UNLIKELY (PID == 0x1fff))
goto beach;
/* get the stream. */
stream = gst_mpegts_demux_get_stream_for_PID (demux, PID);
@ -2387,6 +2391,8 @@ gst_mpegts_demux_parse_transport_packet (GstMpegTSDemux * demux,
demux->num_packets = -1;
}
}
beach:
demux->num_packets++;
return ret;