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qtdemux: Handle seeks past EOS as a seek to the end

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Fix reverse playback of every frame by making seeks past/to EOS
find the last segment and start there.
This commit is contained in:
Jan Schmidt 2014-12-03 13:20:57 +11:00
parent e3b0fb2a5d
commit b3d1ab5267
1 changed files with 7 additions and 25 deletions
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32
gst/isomp4/qtdemux.c
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@ -1104,7 +1104,9 @@ beach:
/* find the segment for @time_position for @stream
*
* Returns -1 if the segment cannot be found.
* Returns the index of the segment containing @time_position.
* Returns the last segment and sets the @eos variable to TRUE
* if the time is beyond the end. @eos may be NULL
*/
static guint32
gst_qtdemux_find_segment (GstQTDemux * qtdemux, QtDemuxStream * stream,
@ -1116,8 +1118,6 @@ gst_qtdemux_find_segment (GstQTDemux * qtdemux, QtDemuxStream * stream,
GST_LOG_OBJECT (qtdemux, "finding segment for %" GST_TIME_FORMAT,
GST_TIME_ARGS (time_position));
/* find segment corresponding to time_position if we are looking
* for a segment. */
seg_idx = -1;
for (i = 0; i < stream->n_segments; i++) {
QtDemuxSegment *segment = &stream->segments[i];
@ -1134,11 +1134,9 @@ gst_qtdemux_find_segment (GstQTDemux * qtdemux, QtDemuxStream * stream,
break;
}
} else {
if (segment->time <= time_position && time_position <= segment->stop_time) {
GST_LOG_OBJECT (qtdemux, "segment %d matches", i);
seg_idx = i;
break;
}
/* Last segment always matches */
seg_idx = i;
break;
}
}
return seg_idx;
@ -1194,10 +1192,6 @@ gst_qtdemux_adjust_seek (GstQTDemux * qtdemux, gint64 desired_time,
seg_idx = gst_qtdemux_find_segment (qtdemux, str, desired_time);
GST_DEBUG_OBJECT (qtdemux, "align segment %d", seg_idx);
/* segment not found, continue with normal flow */
if (seg_idx == -1)
continue;
/* get segment and time in the segment */
seg = &str->segments[seg_idx];
seg_time = desired_time - seg->time;
@ -3357,10 +3351,6 @@ gst_qtdemux_seek_to_previous_keyframe (GstQTDemux * qtdemux)
seg_idx = gst_qtdemux_find_segment (qtdemux, str,
qtdemux->segment.position);
/* segment not found, continue with normal flow */
if (seg_idx == -1)
continue;
/* No candidate yet, take that one */
if (!ref_str) {
ref_str = str;
@ -3464,10 +3454,6 @@ gst_qtdemux_seek_to_previous_keyframe (GstQTDemux * qtdemux)
"stream %d align segment %d for keyframe pos %" GST_TIME_FORMAT, n,
seg_idx, GST_TIME_ARGS (k_pos));
/* segment not found, continue with normal flow */
if (seg_idx == -1)
continue;
/* get segment and time in the segment */
seg = &str->segments[seg_idx];
seg_time = k_pos - seg->time;
@ -3560,7 +3546,7 @@ gst_qtdemux_activate_segment (GstQTDemux * qtdemux, QtDemuxStream * stream,
if (G_UNLIKELY (seg_time > segment->duration)) {
GST_LOG_OBJECT (qtdemux, "seg_time > segment->duration %" GST_TIME_FORMAT,
GST_TIME_ARGS (segment->duration));
return FALSE;
seg_time = segment->duration;
}
/* qtdemux->segment.stop is in outside-time-realm, whereas
@ -3742,10 +3728,6 @@ gst_qtdemux_prepare_current_sample (GstQTDemux * qtdemux,
/* find segment corresponding to time_position if we are looking
* for a segment. */
seg_idx = gst_qtdemux_find_segment (qtdemux, stream, time_position);
/* nothing found, we're really eos */
if (seg_idx == -1)
goto eos;
}
/* different segment, activate it, sample_index will be set. */