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dashdemux: Never take more than the current fragment duration for estimations inside the fragment

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Taking the average might give us from results.
This commit is contained in:
Sebastian Dröge 2017-03-15 16:45:33 +02:00 committed by Edward Hervey
parent df420cc21f
commit 9267b4a725
1 changed files with 19 additions and 8 deletions
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27
ext/dash/gstdashdemux.c
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@ -1292,6 +1292,9 @@ gst_dash_demux_stream_update_fragment_info (GstAdaptiveDemuxStream * stream)
dashstream->actual_position =
fragment.timestamp +
dashstream->current_sync_sample * dashstream->keyframe_average_distance;
dashstream->actual_position =
MIN (dashstream->actual_position,
fragment.timestamp + stream->fragment.duration);
stream->fragment.uri = fragment.uri;
stream->fragment.timestamp = GST_CLOCK_TIME_NONE;
@ -1562,13 +1565,17 @@ gst_dash_demux_stream_advance_sync_sample (GstAdaptiveDemuxStream * stream,
if (GST_CLOCK_TIME_IS_VALID (target_time)) {
GST_LOG_OBJECT (stream->pad,
"target_time:%" GST_TIME_FORMAT " fragment ts %" GST_TIME_FORMAT
" average:%" GST_TIME_FORMAT, GST_TIME_ARGS (target_time),
" average:%" GST_TIME_FORMAT " fragment duration:%" GST_TIME_FORMAT,
GST_TIME_ARGS (target_time),
GST_TIME_ARGS (dashstream->current_fragment_timestamp),
GST_TIME_ARGS (dashstream->keyframe_average_distance));
GST_TIME_ARGS (dashstream->keyframe_average_distance),
GST_TIME_ARGS (stream->fragment.duration));
idx =
(target_time -
dashstream->current_fragment_timestamp) /
dashstream->keyframe_average_distance;
MIN (dashstream->keyframe_average_distance,
stream->fragment.duration);
}
GST_DEBUG_OBJECT (stream->pad,
@ -1699,8 +1706,8 @@ gst_dash_demux_stream_get_target_time (GstDashDemux * dashdemux,
dashstream->actual_position);
if (stream->qos_earliest_time == GST_CLOCK_TIME_NONE) {
GstClockTime run_key_dist =
dashstream->keyframe_average_distance / ABS (stream->segment.rate);
GstClockTime run_key_dist = MIN (dashstream->keyframe_average_distance,
stream->fragment.duration) / ABS (stream->segment.rate);
/* If we don't have downstream information (such as at startup or
* without live sinks), just get the next time (already updated
* in actual_position) */
@ -1795,7 +1802,9 @@ gst_dash_demux_stream_advance_fragment (GstAdaptiveDemuxStream * stream)
if (dashstream->current_sync_sample == -1)
dur = 0;
else
dur = dashstream->keyframe_average_distance;
dur =
MIN (dashstream->keyframe_average_distance,
stream->fragment.duration);
} else if (gst_mpd_client_has_isoff_ondemand_profile (dashdemux->client) &&
dashstream->sidx_position != 0
&& dashstream->sidx_position != GST_CLOCK_TIME_NONE
@ -2410,7 +2419,8 @@ gst_dash_demux_need_another_chunk (GstAdaptiveDemuxStream * stream)
idx =
(dashstream->target_time -
dashstream->current_fragment_timestamp) /
dashstream->keyframe_average_distance;
MIN (dashstream->keyframe_average_distance,
stream->fragment.duration);
else if (stream->demux->segment.rate > 0.0)
idx = 0;
if (idx == 0)
@ -2985,7 +2995,8 @@ gst_dash_demux_handle_isobmff (GstAdaptiveDemux * demux,
idx =
(dash_stream->target_time -
dash_stream->current_fragment_timestamp) /
dash_stream->keyframe_average_distance;
MIN (dash_stream->keyframe_average_distance,
stream->fragment.duration);
GST_DEBUG_OBJECT (stream->pad, "target %" GST_TIME_FORMAT " idx %d",
GST_TIME_ARGS (dash_stream->target_time), idx);