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tsparse: fix timestamps not updating after a PMT change

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The PCRs stay locked onto the same PID as before the change,
but the relevant PID has no reason to be the same after it.

https://bugzilla.gnome.org/show_bug.cgi?id=745102
This commit is contained in:
Vincent Penquerc'h 2015-03-26 13:46:16 +00:00
parent ade79a9ad2
commit 68f57d20b9
2 changed files with 18 additions and 3 deletions
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19
gst/mpegtsdemux/mpegtsparse.c
View file

@ -234,8 +234,10 @@ mpegts_parse_reset (MpegTSBase * base)
parse->current_pcr = GST_CLOCK_TIME_NONE;
parse->previous_pcr = GST_CLOCK_TIME_NONE;
parse->base_pcr = GST_CLOCK_TIME_NONE;
parse->bytes_since_pcr = 0;
parse->pcr_pid = parse->user_pcr_pid;
parse->ts_offset = 0;
}
static void
@ -360,6 +362,9 @@ push_event (MpegTSBase * base, GstEvent * event)
if (G_UNLIKELY (GST_EVENT_TYPE (event) == GST_EVENT_EOS))
drain_pending_buffers (parse, TRUE);
if (G_UNLIKELY (GST_EVENT_TYPE (event) == GST_EVENT_SEGMENT))
parse->ts_offset = 0;
for (tmp = parse->srcpads; tmp; tmp = tmp->next) {
GstPad *pad = (GstPad *) tmp->data;
if (pad) {
@ -680,8 +685,12 @@ mpegts_parse_inspect_packet (MpegTSBase * base, MpegTSPacketizerPacket * packet)
if (parse->pcr_pid == -1)
parse->pcr_pid = packet->pid;
/* Check the PCR-PID matches the program we want for multiple programs */
if (parse->pcr_pid == packet->pid)
if (parse->pcr_pid == packet->pid) {
parse->current_pcr = PCRTIME_TO_GSTTIME (packet->pcr);
if (parse->base_pcr == GST_CLOCK_TIME_NONE) {
parse->base_pcr = parse->current_pcr;
}
}
}
}
@ -807,8 +816,8 @@ drain_pending_buffers (MpegTSParse2 * parse, gboolean drain_all)
"InputTS %" GST_TIME_FORMAT " out %" GST_TIME_FORMAT,
GST_TIME_ARGS (GST_BUFFER_PTS (buffer)), GST_TIME_ARGS (out_ts));
GST_BUFFER_PTS (buffer) = out_ts;
GST_BUFFER_DTS (buffer) = out_ts;
GST_BUFFER_PTS (buffer) = out_ts + parse->ts_offset;
GST_BUFFER_DTS (buffer) = out_ts + parse->ts_offset;
if (ret == GST_FLOW_OK)
ret = gst_pad_push (parse->srcpad, buffer);
else
@ -914,6 +923,10 @@ mpegts_parse_program_stopped (MpegTSBase * base, MpegTSBaseProgram * program)
tspad->program = NULL;
parseprogram->tspad = NULL;
}
parse->pcr_pid = -1;
parse->ts_offset += parse->current_pcr - parse->base_pcr;
parse->base_pcr = GST_CLOCK_TIME_NONE;
}
static gboolean

2
gst/mpegtsdemux/mpegtsparse.h
View file

@ -52,6 +52,8 @@ struct _MpegTSParse2 {
guint group_id;
GstClockTime smoothing_latency;
GstClockTime base_pcr;
GstClockTime ts_offset;
GstClockTime current_pcr;
gint user_pcr_pid;
gint pcr_pid;