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oggmux: convert incoming buffer timestamp to running time

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... so all subsequent manipulation can take place in the proper timeline
without further ado.
This commit is contained in:
Mark Nauwelaerts 2011-06-06 12:46:05 +02:00
parent 2e7eddd35e
commit de1f593537
1 changed files with 32 additions and 11 deletions
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43
ext/ogg/gstoggmux.c
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@ -62,11 +62,6 @@ GST_DEBUG_CATEGORY_STATIC (gst_ogg_mux_debug);
? GST_BUFFER_TIMESTAMP (buf) + GST_BUFFER_DURATION (buf) \ ? GST_BUFFER_TIMESTAMP (buf) + GST_BUFFER_DURATION (buf) \
: GST_BUFFER_TIMESTAMP (buf)) : GST_BUFFER_TIMESTAMP (buf))
#define GST_BUFFER_RUNNING_TIME(buf, oggpad) \
(GST_BUFFER_DURATION_IS_VALID (buf) \
? gst_segment_to_running_time (&(oggpad)->segment, GST_FORMAT_TIME, \
GST_BUFFER_TIMESTAMP (buf)) : 0)
#define GST_GP_FORMAT "[gp %8" G_GINT64_FORMAT "]" #define GST_GP_FORMAT "[gp %8" G_GINT64_FORMAT "]"
#define GST_GP_CAST(_gp) ((gint64) _gp) #define GST_GP_CAST(_gp) ((gint64) _gp)
@ -551,7 +546,7 @@ gst_ogg_mux_push_buffer (GstOggMux * mux, GstBuffer * buffer,
/* Ensure we have monotonically increasing timestamps in the output. */ /* Ensure we have monotonically increasing timestamps in the output. */
if (GST_BUFFER_TIMESTAMP_IS_VALID (buffer)) { if (GST_BUFFER_TIMESTAMP_IS_VALID (buffer)) {
gint64 run_time = GST_BUFFER_RUNNING_TIME (buffer, oggpad); gint64 run_time = GST_BUFFER_TIMESTAMP (buffer);
if (mux->last_ts != GST_CLOCK_TIME_NONE && run_time < mux->last_ts) if (mux->last_ts != GST_CLOCK_TIME_NONE && run_time < mux->last_ts)
GST_BUFFER_TIMESTAMP (buffer) = mux->last_ts; GST_BUFFER_TIMESTAMP (buffer) = mux->last_ts;
else else
@ -755,11 +750,6 @@ gst_ogg_mux_compare_pads (GstOggMux * ogg_mux, GstOggPadData * first,
if (secondtime == GST_CLOCK_TIME_NONE) if (secondtime == GST_CLOCK_TIME_NONE)
return 1; return 1;
firsttime = gst_segment_to_running_time (&first->segment, GST_FORMAT_TIME,
firsttime);
secondtime = gst_segment_to_running_time (&second->segment, GST_FORMAT_TIME,
secondtime);
/* first buffer has higher timestamp, second one should go first */ /* first buffer has higher timestamp, second one should go first */
if (secondtime < firsttime) if (secondtime < firsttime)
return 1; return 1;
@ -779,6 +769,29 @@ gst_ogg_mux_compare_pads (GstOggMux * ogg_mux, GstOggPadData * first,
return 0; return 0;
} }
static GstBuffer *
gst_ogg_mux_decorate_buffer (GstOggMux * ogg_mux, GstOggPadData * pad,
GstBuffer * buf)
{
GstClockTime time;
/* convert time to running time, so we need no longer bother about that */
time = GST_BUFFER_TIMESTAMP (buf);
if (G_LIKELY (GST_CLOCK_TIME_IS_VALID (time))) {
time = gst_segment_to_running_time (&pad->segment, GST_FORMAT_TIME, time);
if (G_UNLIKELY (!GST_CLOCK_TIME_IS_VALID (time))) {
gst_buffer_unref (buf);
return NULL;
} else {
buf = gst_buffer_make_metadata_writable (buf);
GST_BUFFER_TIMESTAMP (buf) = time;
}
}
return buf;
}
/* make sure at least one buffer is queued on all pads, two if possible /* make sure at least one buffer is queued on all pads, two if possible
* *
* if pad->buffer == NULL, pad->next_buffer != NULL, then * if pad->buffer == NULL, pad->next_buffer != NULL, then
@ -883,6 +896,14 @@ gst_ogg_mux_queue_pads (GstOggMux * ogg_mux)
pad->state = GST_OGG_PAD_STATE_DATA; pad->state = GST_OGG_PAD_STATE_DATA;
} }
} }
/* so now we should have a real data packet;
* see that it is properly decorated */
if (G_LIKELY (buf)) {
buf = gst_ogg_mux_decorate_buffer (ogg_mux, pad, buf);
if (G_UNLIKELY (!buf))
GST_DEBUG_OBJECT (data->pad, "buffer clipped");
}
} else { } else {
GST_DEBUG_OBJECT (data->pad, "EOS on pad"); GST_DEBUG_OBJECT (data->pad, "EOS on pad");
if (!pad->eos) { if (!pad->eos) {