[gstreamer-bugs] [Bug 583935] QoS problem with theora and overlapping clips

[GStreamer (bugzilla.gnome.org)]

https://bugzilla.gnome.org/show_bug.cgi?id=583935
  GStreamer | gnonlin | 0.10.18

Gregory Maxwell <gmaxwell> changed:

           What    |Removed                     |Added
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                 CC|                            |gmaxwell at gmail.com

--- Comment #10 from Gregory Maxwell <gmaxwell at gmail.com> 2010-02-20 16:49:42 UTC ---
There is no evidence provided here of broken files. 

Oggzdump annoyingly changes the string it uses to identify the granule
position: It uses "granulepos" for packets which are the last packet on a page
and "calc. gpos" for packets where are not the last packet on the page.

[gmaxwell at helmholtz tmp]$ oggzdump "0.13.1 version 2/demonstration screencast
pitivi 0.13.1 - third shot.ogv" | grep 'serialno 0943335736'| head
00:00:00.000: serialno 0943335736, granulepos 0|0, packetno 0 *** bos: 42 bytes
00:00:00.000: serialno 0943335736, calc. gpos 0|0, packetno 1: 77 bytes
00:00:00.000: serialno 0943335736, granulepos 0|0, packetno 2: 2.552 kB
00:00:00.033: serialno 0943335736, granulepos 1|0, packetno 3: 90.312 kB
00:00:00.066: serialno 0943335736, granulepos 1|1, packetno 4: 6.906 kB
00:00:00.100: serialno 0943335736, calc. gpos 1|2, packetno 5: 71 bytes
00:00:00.133: serialno 0943335736, calc. gpos 1|3, packetno 6: 21 bytes
00:00:00.166: serialno 0943335736, calc. gpos 1|4, packetno 7: 15 bytes
00:00:00.200: serialno 0943335736, calc. gpos 1|5, packetno 8: 15 bytes
00:00:00.233: serialno 0943335736, calc. gpos 1|6, packetno 9: 15 bytes

(Also keep in mind that zero byte packets are perfectly valid and will be found
in very still content or in variable frame rate files).

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