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tsdemux: Use new clock skew estimation for outgoing timestamps

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Only used in live mode
This commit is contained in:
Edward Hervey 2012-02-24 17:53:52 +01:00
parent e6ff2f7b83
commit b6d98aea5f
1 changed files with 20 additions and 47 deletions
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67
gst/mpegtsdemux/tsdemux.c
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@ -315,11 +315,14 @@ gst_ts_demux_reset (MpegTSBase * base)
demux->index = NULL;
}
demux->index_size = 0;
demux->need_newsegment = TRUE;
demux->program_number = -1;
demux->duration = GST_CLOCK_TIME_NONE;
demux->pts_delta = GST_CLOCK_TIME_NONE;
gst_segment_init (&demux->segment, GST_FORMAT_TIME);
demux->first_pcr = (TSPcrOffset) {
GST_CLOCK_TIME_NONE, 0, 0};
demux->cur_pcr = (TSPcrOffset) {
@ -2037,11 +2040,9 @@ gst_ts_demux_parse_pes_header (GstTSDemux * demux, TSDemuxStream * stream)
guint32 length;
guint64 bufferoffset;
PESParsingResult parseres;
GstClockTime origts;
data = GST_BUFFER_DATA (stream->pendingbuffers[0]);
length = GST_BUFFER_SIZE (stream->pendingbuffers[0]);
origts = GST_BUFFER_TIMESTAMP (stream->pendingbuffers[0]);
bufferoffset = GST_BUFFER_OFFSET (stream->pendingbuffers[0]);
GST_MEMDUMP ("Header buffer", data, MIN (length, 32));
@ -2061,45 +2062,11 @@ gst_ts_demux_parse_pes_header (GstTSDemux * demux, TSDemuxStream * stream)
if (header.PTS != -1) {
gst_ts_demux_record_pts (demux, stream, header.PTS, bufferoffset);
#if 0
/* WTH IS THIS ??? */
if (demux->index_pcr.offset + PCR_WRAP_SIZE_128KBPS + 1000 * 128 < offset
|| (demux->index_pcr.offset > offset)) {
/* find next entry */
TSPcrOffset *next;
demux->index_pcr.offset = offset;
next = gst_util_array_binary_search (demux->index->data,
demux->index_size, sizeof (*next), TSPcrOffset_find_offset,
GST_SEARCH_MODE_BEFORE, &demux->index_pcr, NULL);
if (next) {
GST_INFO ("new index_pcr %" GST_TIME_FORMAT " offset: %"
G_GINT64_FORMAT, GST_TIME_ARGS (next->gsttime), next->offset);
demux->index_pcr = *next;
}
}
time = calc_gsttime_from_pts (&demux->index_pcr, pts);
#endif
GST_DEBUG_OBJECT (base,
"stream PTS %" GST_TIME_FORMAT " DTS %" GST_TIME_FORMAT,
GST_TIME_ARGS (stream->pts),
GST_TIME_ARGS (MPEGTIME_TO_GSTTIME (header.DTS)));
/* FIXME : This will only work if the PES header is contained
* at the beginning of an incoming GstBuffer */
if (base->upstream_live && GST_CLOCK_TIME_IS_VALID (origts)
&& !GST_CLOCK_TIME_IS_VALID (demux->pts_delta)) {
if (header.DTS != -1)
demux->pts_delta = MPEGTIME_TO_GSTTIME (header.DTS) - origts;
else
demux->pts_delta = stream->pts - origts;
GST_DEBUG_OBJECT (base, "buffer timestamp %" GST_TIME_FORMAT,
GST_TIME_ARGS (origts));
GST_DEBUG_OBJECT (base, "delta %" GST_TIME_FORMAT,
GST_TIME_ARGS (demux->pts_delta));
}
/* safe default if insufficient upstream info */
if (G_UNLIKELY (!GST_CLOCK_TIME_IS_VALID (base->in_gap) &&
GST_CLOCK_TIME_IS_VALID (base->first_buf_ts) &&
@ -2129,13 +2096,17 @@ gst_ts_demux_parse_pes_header (GstTSDemux * demux, TSDemuxStream * stream)
base->in_gap = 0;
if (base->upstream_live) {
if (GST_CLOCK_TIME_IS_VALID (demux->pts_delta))
MpegTSPacketizer2 *packetizer = base->packetizer;
if (GST_CLOCK_TIME_IS_VALID (packetizer->base_time))
GST_BUFFER_TIMESTAMP (stream->pendingbuffers[0]) =
stream->pts - demux->pts_delta;
stream->pts - packetizer->base_pcrtime + packetizer->base_time +
packetizer->skew;
else
GST_BUFFER_TIMESTAMP (stream->pendingbuffers[0]) = GST_CLOCK_TIME_NONE;
} else
GST_BUFFER_TIMESTAMP (stream->pendingbuffers[0]) = stream->pts + base->in_gap;
GST_BUFFER_TIMESTAMP (stream->pendingbuffers[0]) =
stream->pts + base->in_gap;
GST_DEBUG ("buf %" GST_TIME_FORMAT,
GST_TIME_ARGS (GST_BUFFER_TIMESTAMP (stream->pendingbuffers[0])));
}
@ -2317,6 +2288,7 @@ gst_ts_demux_push_pending_data (GstTSDemux * demux, TSDemuxStream * stream)
MpegTSBaseStream *bs = (MpegTSBaseStream *) stream;
/* MpegTSBase *base = (MpegTSBase*) demux; */
GstBuffer *firstbuffer = NULL;
MpegTSPacketizer2 *packetizer = ((MpegTSBase *) demux)->packetizer;
GST_DEBUG_OBJECT (stream->pad,
"stream:%p, pid:0x%04x stream_type:%d state:%d", stream, bs->pid,
@ -2354,13 +2326,14 @@ gst_ts_demux_push_pending_data (GstTSDemux * demux, TSDemuxStream * stream)
firstbuffer = gst_buffer_list_get (stream->current, 0, 0);
GST_DEBUG_OBJECT (stream->pad,
"delta %" GST_TIME_FORMAT " stream->pts %" GST_TIME_FORMAT,
GST_TIME_ARGS (demux->pts_delta), GST_TIME_ARGS (stream->pts));
if (GST_CLOCK_TIME_IS_VALID (demux->pts_delta)
&& GST_CLOCK_TIME_IS_VALID (stream->pts)
&& !GST_CLOCK_TIME_IS_VALID (GST_BUFFER_TIMESTAMP (firstbuffer))) {
GST_BUFFER_TIMESTAMP (firstbuffer) = stream->pts - demux->pts_delta;
GST_DEBUG_OBJECT (stream->pad, "stream->pts %" GST_TIME_FORMAT,
GST_TIME_ARGS (stream->pts));
if (GST_CLOCK_TIME_IS_VALID (stream->pts)
&& !GST_CLOCK_TIME_IS_VALID (GST_BUFFER_TIMESTAMP (firstbuffer))
&& GST_CLOCK_TIME_IS_VALID (packetizer->base_time)) {
GST_BUFFER_TIMESTAMP (firstbuffer) =
stream->pts - packetizer->base_pcrtime + packetizer->base_time +
packetizer->skew;
}
GST_DEBUG_OBJECT (stream->pad,