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avi: fix prev keyframe search and cleanups

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This commit is contained in:
Wim Taymans 2009-09-22 17:42:48 +02:00 committed by Wim Taymans
parent 1b325945e5
commit 3338f91cfe
1 changed files with 34 additions and 36 deletions
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70
gst/avi/gstavidemux.c
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@ -1885,7 +1885,7 @@ gst_avi_demux_index_prev (GstAviDemux * avi, GstAviStream * stream,
for (i = last; i > 0; i--) {
entry = &stream->index[i - 1];
if (!keyframe || ENTRY_IS_KEYFRAME (entry)) {
return i;
return i - 1;
}
}
return 0;
@ -2158,7 +2158,7 @@ gst_avi_demux_parse_index (GstAviDemux * avi, GstBuffer * buf)
}
GST_LOG_OBJECT (avi,
"Adding stream %d, index entry %d, kf %d, size %u "
"Adding stream %u, index entry %d, kf %d, size %u "
", offset %" G_GUINT64_FORMAT ", total %" G_GUINT64_FORMAT, stream_nr,
stream->idx_n, ENTRY_IS_KEYFRAME (&entry), entry.size, entry.offset,
entry.total);
@ -2203,7 +2203,7 @@ gst_avi_demux_parse_index (GstAviDemux * avi, GstBuffer * buf)
total_max += stream->idx_max;
#endif
GST_INFO_OBJECT (avi, "Stream %d, dur %" GST_TIME_FORMAT ", %6u entries, "
"%5lu keyframes, entry size = %2u, total size = %10u, allocated %10u",
"%5u keyframes, entry size = %2u, total size = %10u, allocated %10u",
i, GST_TIME_ARGS (stream->idx_duration), stream->idx_n,
stream->n_keyframes, (guint) sizeof (GstAviIndexEntry),
(guint) (stream->idx_n * sizeof (GstAviIndexEntry)),
@ -3048,7 +3048,8 @@ gst_avi_demux_calculate_durations_from_index (GstAviDemux * avi)
}
/* returns FALSE if there are no pads to deliver event to,
* otherwise TRUE (whatever the outcome of event sending) */
* otherwise TRUE (whatever the outcome of event sending),
* takes ownership of the event. */
static gboolean
gst_avi_demux_push_event (GstAviDemux * avi, GstEvent * event)
{
@ -3058,14 +3059,12 @@ gst_avi_demux_push_event (GstAviDemux * avi, GstEvent * event)
GST_DEBUG_OBJECT (avi, "sending %s event to %d streams",
GST_EVENT_TYPE_NAME (event), avi->num_streams);
if (avi->num_streams) {
for (i = 0; i < avi->num_streams; i++) {
GstAviStream *stream = &avi->stream[i];
for (i = 0; i < avi->num_streams; i++) {
GstAviStream *stream = &avi->stream[i];
if (stream->pad) {
result = TRUE;
gst_pad_push_event (stream->pad, gst_event_ref (event));
}
if (stream->pad) {
result = TRUE;
gst_pad_push_event (stream->pad, gst_event_ref (event));
}
}
gst_event_unref (event);
@ -3735,7 +3734,6 @@ gst_avi_demux_do_seek (GstAviDemux * avi, GstSegment * segment)
gboolean keyframe;
guint i, index;
GstAviStream *stream;
GstClockTime timestamp, duration;
seek_time = segment->last_stop;
keyframe = !!(segment->flags & GST_SEEK_FLAG_KEY_UNIT);
@ -3760,28 +3758,21 @@ gst_avi_demux_do_seek (GstAviDemux * avi, GstSegment * segment)
GST_DEBUG_OBJECT (avi, "previous keyframe at %u", index);
}
/* take a look at the final entry */
gst_avi_demux_get_buffer_info (avi, stream, index,
&timestamp, &duration, NULL, NULL);
GST_DEBUG_OBJECT (avi,
"Got keyframe entry %d [ts:%" GST_TIME_FORMAT
" / duration:%" GST_TIME_FORMAT "]", index,
GST_TIME_ARGS (timestamp), GST_TIME_ARGS (duration));
/* move the main stream to this position */
gst_avi_demux_move_stream (avi, stream, segment, index);
if (keyframe) {
/* when seeking to a keyframe, we update the result seek time
* to the time of the keyframe. */
seek_time = timestamp;
seek_time = stream->current_timestamp;
GST_DEBUG_OBJECT (avi, "keyframe adjusted to %" GST_TIME_FORMAT,
GST_TIME_ARGS (seek_time));
}
/* the seek time is also the last_stop and stream time */
segment->last_stop = seek_time;
segment->time = seek_time;
/* move the main stream to this position */
gst_avi_demux_move_stream (avi, stream, segment, index);
/* now set DISCONT and align the other streams */
for (i = 0; i < avi->num_streams; i++) {
GstAviStream *ostream;
@ -3887,11 +3878,13 @@ gst_avi_demux_handle_seek (GstAviDemux * avi, GstPad * pad, GstEvent * event)
gst_avi_demux_do_seek (avi, &seeksegment);
if (flush) {
GstEvent *event = gst_event_new_flush_stop ();
gint i;
GST_DEBUG_OBJECT (avi, "sending flush stop");
gst_avi_demux_push_event (avi, gst_event_new_flush_stop ());
gst_pad_push_event (avi->sinkpad, gst_event_new_flush_stop ());
gst_avi_demux_push_event (avi, gst_event_ref (event));
gst_pad_push_event (avi->sinkpad, event);
/* reset the last flow and mark discont, FLUSH is always DISCONT */
for (i = 0; i < avi->num_streams; i++) {
avi->stream[i].last_flow = GST_FLOW_OK;
@ -3928,13 +3921,15 @@ gst_avi_demux_handle_seek (GstAviDemux * avi, GstPad * pad, GstEvent * event)
if (avi->seek_event)
gst_event_unref (avi->seek_event);
if (avi->segment.rate > 0.0) {
/* forwards goes from last_stop to stop */
avi->seek_event = gst_event_new_new_segment (FALSE,
avi->segment.rate, avi->segment.format,
avi->segment.last_stop, stop, avi->segment.time);
} else {
/* reverse goes from start to last_stop */
avi->seek_event = gst_event_new_new_segment (FALSE,
avi->segment.rate, avi->segment.format,
avi->segment.start, avi->segment.last_stop, avi->segment.start);
avi->segment.start, avi->segment.last_stop, avi->segment.time);
}
if (!avi->streaming) {
@ -4210,8 +4205,9 @@ gst_avi_demux_loop_data (GstAviDemux * avi)
/* correct for index offset */
offset += avi->index_offset + 8;
GST_LOG ("reading buffer (size=%d) from stream %d at current pos %"
G_GUINT64_FORMAT " (%llx)", size, stream_num, offset, offset);
GST_LOG ("reading buffer (size=%d), stream %d, pos %"
G_GUINT64_FORMAT " (%llx), kf %d", size, stream_num, offset,
offset, keyframe);
/* pull in the data */
ret = gst_pad_pull_range (avi->sinkpad, offset, size, &buf);
@ -4226,7 +4222,9 @@ gst_avi_demux_loop_data (GstAviDemux * avi)
buf = gst_avi_demux_invert (stream, buf);
/* mark non-keyframes */
if (!keyframe)
if (keyframe)
GST_BUFFER_FLAG_UNSET (buf, GST_BUFFER_FLAG_DELTA_UNIT);
else
GST_BUFFER_FLAG_SET (buf, GST_BUFFER_FLAG_DELTA_UNIT);
GST_BUFFER_TIMESTAMP (buf) = timestamp;
@ -4234,6 +4232,12 @@ gst_avi_demux_loop_data (GstAviDemux * avi)
GST_BUFFER_OFFSET (buf) = out_offset;
GST_BUFFER_OFFSET_END (buf) = out_offset_end;
/* mark discont when pending */
if (stream->discont) {
GST_BUFFER_FLAG_SET (buf, GST_BUFFER_FLAG_DISCONT);
stream->discont = FALSE;
}
gst_buffer_set_caps (buf, GST_PAD_CAPS (stream->pad));
GST_DEBUG_OBJECT (avi, "Pushing buffer of size %u, ts %"
@ -4246,12 +4250,6 @@ gst_avi_demux_loop_data (GstAviDemux * avi)
/* update current position in the segment */
gst_segment_set_last_stop (&avi->segment, GST_FORMAT_TIME, timestamp);
/* mark discont when pending */
if (stream->discont) {
GST_BUFFER_FLAG_SET (buf, GST_BUFFER_FLAG_DISCONT);
stream->discont = FALSE;
}
ret = gst_pad_push (stream->pad, buf);
/* mark as processed, we increment the frame and byte counters then