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Do the poor man's pulldown timestamp correction, no smoothing yet..

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Original commit message from CVS:
Do the poor man's pulldown timestamp correction, no smoothing yet..
This commit is contained in:
Wim Taymans 2002-11-04 23:03:16 +00:00
parent a503f1ef2e
commit aae92a57bf
1 changed files with 27 additions and 8 deletions
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35
ext/mpeg2dec/gstmpeg2deccvs.c
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@ -304,8 +304,6 @@ gst_mpeg2dec_chain (GstPad *pad, GstBuffer *buf)
gint state;
gboolean done = FALSE;
GST_DEBUG (0, "MPEG2DEC: chain called");
if (GST_IS_EVENT (buf)) {
GstEvent *event = GST_EVENT (buf);
@ -314,7 +312,7 @@ gst_mpeg2dec_chain (GstPad *pad, GstBuffer *buf)
{
//gint64 value = GST_EVENT_DISCONT_OFFSET (event, 0).value;
//mpeg2dec->decoder->is_sequence_needed = 1;
GST_DEBUG (GST_CAT_EVENT, "mpeg2dec: discont\n");
GST_DEBUG (GST_CAT_EVENT, "discont\n");
mpeg2dec->first = TRUE;
mpeg2dec->last_PTS = -1;
mpeg2dec->next_time = 0;
@ -337,12 +335,21 @@ gst_mpeg2dec_chain (GstPad *pad, GstBuffer *buf)
data = GST_BUFFER_DATA (buf);
pts = GST_BUFFER_TIMESTAMP (buf);
GST_DEBUG (GST_CAT_CLOCK, "mpeg2dec: pts %llu\n", pts);
info = mpeg2_info (mpeg2dec->decoder);
end = data + size;
mpeg2_pts (mpeg2dec->decoder, GSTTIME_TO_MPEGTIME (pts));
if (pts != -1) {
gint64 mpeg_pts = GSTTIME_TO_MPEGTIME (pts);
GST_DEBUG (0, "have pts: %lld (%lld)",
mpeg_pts, MPEGTIME_TO_GSTTIME (mpeg_pts));
mpeg2_pts (mpeg2dec->decoder, mpeg_pts);
}
else {
GST_DEBUG (GST_CAT_CLOCK, "no pts");
}
mpeg2_buffer (mpeg2dec->decoder, data, end);
while (!done) {
@ -357,6 +364,9 @@ gst_mpeg2dec_chain (GstPad *pad, GstBuffer *buf)
mpeg2dec->total_frames = 0;
mpeg2dec->frame_period = info->sequence->frame_period * GST_USECOND / 27;
GST_DEBUG (0, "sequence flags: %d, frame period: %d",
info->sequence->flags, info->sequence->frame_period);
if (!gst_mpeg2dec_negotiate_format (mpeg2dec)) {
gst_element_error (GST_ELEMENT (mpeg2dec), "could not negotiate format");
return;
@ -366,6 +376,7 @@ gst_mpeg2dec_chain (GstPad *pad, GstBuffer *buf)
break;
}
case STATE_SEQUENCE_REPEATED:
GST_DEBUG (0, "sequence repeated");
break;
case STATE_GOP:
break;
@ -384,8 +395,10 @@ gst_mpeg2dec_chain (GstPad *pad, GstBuffer *buf)
}
break;
case STATE_SLICE_1ST:
GST_DEBUG (0, "slice 1st");
break;
case STATE_PICTURE_2ND:
GST_DEBUG (0, "picture second\n");
break;
case STATE_SLICE:
case STATE_END:
@ -403,12 +416,18 @@ gst_mpeg2dec_chain (GstPad *pad, GstBuffer *buf)
GST_BUFFER_TIMESTAMP (outbuf) = time;
mpeg2dec->next_time = time + mpeg2dec->frame_period;
mpeg2dec->next_time = time;
}
else {
GST_BUFFER_TIMESTAMP (outbuf) = mpeg2dec->next_time;
mpeg2dec->next_time += mpeg2dec->frame_period;
}
mpeg2dec->next_time += (mpeg2dec->frame_period * picture->nb_fields) >> 1;
GST_DEBUG (0, "picture: %s %s fields:%d ts:%lld",
(picture->flags & PIC_FLAG_TOP_FIELD_FIRST ? "tff " : " "),
(picture->flags & PIC_FLAG_PROGRESSIVE_FRAME ? "prog" : " "),
picture->nb_fields,
GST_BUFFER_TIMESTAMP (outbuf));
/*
if (picture->flags & PIC_FLAG_SKIP ||