[Bug 752603] qtdemux: Unable to play streaming MP4 (H264+AAC) file from VLC

[GStreamer (GNOME Bugzilla)]

https://bugzilla.gnome.org/show_bug.cgi?id=752603

--- Comment #54 from Alicia Boya García <aboya at igalia.com> ---
Created attachment 372626
  --> https://bugzilla.gnome.org/attachment.cgi?id=372626&action=edit
qtdemux: rework segment event pushing, again

This patch aims at fixing the recent regressions in the adaptive test
suite.

All segment pushing in push mode is now done with
gst_qtdemux_check_send_pending_segment(), which is idempotent and
handles both edit lists cases and cases where the upstream TIME segments
have to be sent directly.

Fragmented files that start with a non-zero tfdt are also taken into
account, but their handling has been vastly simplified: now they are
handled as implicit default seeks so there is no need to extend the
GstSegment formulas as was being done before.

qtdemux->segment.duration is no longer modified when
upstream_format_is_time, respecting in this way the durations provided
by dashdemux and fixing bugs in reverse playback tests where mangled
durations appeared in the emitted segments.

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