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interlace: Fix buffer timestamp and duration

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The field rate is twice the frame rate of the src pad and so the duration of
one output buffer is src_fps_d / (2 * src_fps_n).
This commit is contained in:
Robert Swain 2010-11-22 15:26:06 +01:00
parent 341b0c2d62
commit 0de362f248
1 changed files with 3 additions and 2 deletions
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5
gst/interlace/gstinterlace.c
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@ -327,13 +327,14 @@ static void
gst_interlace_decorate_buffer (GstInterlace * interlace, GstBuffer * buf,
int n_fields)
{
/* field duration = src_fps_d / (2 * src_fps_n) */
GST_BUFFER_TIMESTAMP (buf) = interlace->timebase +
gst_util_uint64_scale (GST_SECOND,
interlace->src_fps_d * interlace->fields_since_timebase,
interlace->src_fps_n);
interlace->src_fps_n * 2);
GST_BUFFER_DURATION (buf) =
gst_util_uint64_scale (GST_SECOND, interlace->src_fps_d * n_fields,
interlace->src_fps_n);
interlace->src_fps_n * 2);
/* increment the buffer timestamp by duration for the next buffer */
gst_buffer_set_caps (buf, interlace->srccaps);