[Bug 751103] qtdemux: Segment seeks broken with CTTS version 1 .mov files

[GStreamer (GNOME Bugzilla)]

https://bugzilla.gnome.org/show_bug.cgi?id=751103

Thiago Sousa Santos <thiagossantos at gmail.com> changed:

           What    |Removed                     |Added
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 Attachment #305629|none                        |reviewed
             status|                            |

--- Comment #17 from Thiago Sousa Santos <thiagossantos at gmail.com> ---
Review of attachment 305629:
 --> (https://bugzilla.gnome.org/review?bug=751103&attachment=305629)

This is very close to a solution but there are still some things to solve.

::: gst/isomp4/qtdemux.c
@@ +7185,3 @@
+
+    stream->cslg_shift = ABS (least_soffset);
+  }

Also, keep in mind that parse_samples will be called incrementally, parsing
only the first N samples so the observation of least_offset might not be
correct at the beginning, this means that the initial segment.start could be
wrong and we could end up with some desync if we find a smaller cslg_shift at
some point.

Also, we should reset this value when a new fragment starts as it is only valid
for the movie it is present and not for subsequent ones in a fragmented stream.

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