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ext/theora/theoradec.c: Better clipping.

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Original commit message from CVS:
* ext/theora/theoradec.c: (clip_buffer):
Better clipping.
This commit is contained in:
Wim Taymans 2006-07-21 11:03:28 +00:00
parent 843202b51c
commit 5f3f10861e
2 changed files with 31 additions and 16 deletions
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5
ChangeLog
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@ -1,3 +1,8 @@
2006-07-21 Wim Taymans <wim@fluendo.com>
* ext/theora/theoradec.c: (clip_buffer):
Better clipping.
2006-07-21 Wim Taymans <wim@fluendo.com>
* gst-libs/gst/audio/gstaudiosink.c: (audioringbuffer_thread_func),

42
ext/theora/theoradec.c
View file

@ -865,35 +865,45 @@ header_read_error:
/* returns TRUE if buffer is within segment, else FALSE.
* if Buffer is on segment border, it's timestamp and duration will be clipped */
static gboolean
clip_buffer (GstTheoraDec * dec, GstBuffer * buf)
{
gboolean res = FALSE;
gboolean res = TRUE;
GstClockTime in_ts, in_dur, stop;
gint64 cstart, cstop;
in_ts = GST_BUFFER_TIMESTAMP (buf);
in_dur = GST_BUFFER_DURATION (buf);
GST_LOG_OBJECT (dec,
"timestamp:%" GST_TIME_FORMAT " , duration:%" GST_TIME_FORMAT,
GST_TIME_ARGS (GST_BUFFER_TIMESTAMP (buf)),
GST_TIME_ARGS (GST_BUFFER_DURATION (buf)));
GST_TIME_ARGS (in_ts), GST_TIME_ARGS (in_dur));
if (dec->segment.format != GST_FORMAT_TIME) {
res = TRUE;
goto beach;
}
if (!(gst_segment_clip (&dec->segment, GST_FORMAT_TIME,
GST_BUFFER_TIMESTAMP (buf),
GST_BUFFER_TIMESTAMP (buf) + GST_BUFFER_DURATION (buf),
&cstart, &cstop)))
/* can't clip without TIME segment */
if (dec->segment.format != GST_FORMAT_TIME)
goto beach;
/* we need a start time */
if (!GST_CLOCK_TIME_IS_VALID (in_ts))
goto beach;
/* generate valid stop, if duration unknown, we have unknown stop */
stop =
GST_CLOCK_TIME_IS_VALID (in_dur) ? (in_ts + in_dur) : GST_CLOCK_TIME_NONE;
/* now clip */
if (!(res = gst_segment_clip (&dec->segment, GST_FORMAT_TIME,
in_ts, stop, &cstart, &cstop)))
goto beach;
/* update timestamp and possibly duration if the clipped stop time is
* valid */
GST_BUFFER_TIMESTAMP (buf) = cstart;
GST_BUFFER_DURATION (buf) = cstop - cstart;
res = TRUE;
if (GST_CLOCK_TIME_IS_VALID (cstop))
GST_BUFFER_DURATION (buf) = cstop - cstart;
beach:
GST_LOG_OBJECT (dec, "dropping : %d", res);
GST_LOG_OBJECT (dec, "%sdropping", (res ? "not " : ""));
return res;
}