[Bug 739196] video/x-xvid changed to video/mpeg,mpegversion=4

[GStreamer (bugzilla.gnome.org)]

https://bugzilla.gnome.org/show_bug.cgi?id=739196
  GStreamer | gst-plugins-base | 1.x

--- Comment #24 from Athanasios Oikonomou <athoik at gmail.com> 2014-11-09 21:28:34 UTC ---
There is another difference between packed and unpacked xvid.

unpacked xvid: 

XviD Packet Dump
0x000000: 00 00 01 b0 f5 00 00 01 ........
0x000008: b5 09 00 00 01 00 00 00 ........
--
XviD Packet Dump
0x000000: 00 00 01 b6 52 22 78 10 ....R"x.
0x000008: b1 93 b1 95 90 be 97 04 ........
--
XviD Packet Dump
0x000000: 00 00 01 b6 91 28 38 29 .....(8)
0x000008: 3f f4 fc a9 b9 a6 3d 06 ?.....=.
--
XviD Packet Dump
0x000000: 00 00 01 b6 91 a5 58 31 ......X1
0x000008: 34 ff fe 8e be 48 e1 ef 4....H..
--
XviD Packet Dump
0x000000: 00 00 01 b6 53 99 dc 14 ....S...
0x000008: be fb eb 62 e5 f0 70 60 ...b..p`
--
XviD Packet Dump
0x000000: 00 00 01 b6 92 9f 98 29 .......)
0x000008: 3f a7 fc 89 b4 b3 83 83 ?.......
--
XviD Packet Dump
0x000000: 00 00 01 b6 93 1c b8 31 .......1
0x000008: 3f ff 4f ff ff 4b ff 09 ?.O..K..
--
XviD Packet Dump
0x000000: 00 00 01 b6 55 11 38 10 ....U.8.
0x000008: b7 8b 56 c1 62 af d8 70 ..V.b..p
--
XviD Packet Dump
0x000000: 00 00 01 b6 94 16 f8 39 .......9
0x000008: 3a 3f fe 08 8e 74 18 9c :?...t..
--
XviD Packet Dump
0x000000: 00 00 01 b6 94 94 18 31 .......1
0x000008: 3d 3f ff 4e 9f d1 bf fa =?.N....
--
XviD Packet Dump
0x000000: 00 00 01 b6 56 88 9c 10 ....V...
0x000008: b7 85 88 78 2f 01 29 3c ...x/.)<


packed xvid: 

XviD Packet Dump
0x000000: 00 00 01 b0 f5 00 00 01 ........
0x000008: b5 09 00 00 01 00 00 00 ........
--
XviD Packet Dump
0x000000: 00 00 01 b6 52 22 78 10 ....R"x.
0x000008: b1 93 b1 95 90 be 97 04 ........
--
XviD Packet Dump
0x000000: 00 00 01 b6 91 28 38 29 .....(8)
0x000008: 3f f4 fc a9 b9 a6 3d 06 ?.....=.
--
XviD Packet Dump
0x000000: 00 00 01 b6 91 a5 58 31 ......X1
0x000008: 34 ff fe 8e be 48 e1 ef 4....H..
--
XviD Packet Dump
0x000000: 00 00 01 b6 52 22 73    ....R"s

--
XviD Packet Dump
0x000000: 00 00 01 b6 53 99 dc 14 ....S...
0x000008: be fb eb 62 e5 f0 70 60 ...b..p`
--
XviD Packet Dump
0x000000: 00 00 01 b6 92 9f 98 29 .......)
0x000008: 3f a7 fc 89 b4 b3 83 83 ?.......
--
XviD Packet Dump
0x000000: 00 00 01 b6 93 1c b8 31 .......1
0x000008: 3f ff 4f ff ff 4b ff 09 ?.O..K..
--
XviD Packet Dump
0x000000: 00 00 01 b6 53 99 d3    ....S

--
XviD Packet Dump
0x000000: 00 00 01 b6 55 11 38 10 ....U.8.
0x000008: b7 8b 56 c1 62 af d8 70 ..V.b..p
--
XviD Packet Dump
0x000000: 00 00 01 b6 94 16 f8 39 .......9
0x000008: 3a 3f fe 08 8e 74 18 9c :?...t..
--
XviD Packet Dump
0x000000: 00 00 01 b6 94 94 18 31 .......1
0x000008: 3d 3f ff 4e 9f d1 bf fa =?.N....
--
XviD Packet Dump
0x000000: 00 00 01 b6 55 11 33    ....U.3

--
XviD Packet Dump
0x000000: 00 00 01 b6 56 88 9c 10 ....V...
0x000008: b7 85 88 78 2f 01 29 3c ...x/.)<
--


Packed has extra packets received...

0x000000: 00 00 01 b6 52 22 73    ....R"s
--
0x000000: 00 00 01 b6 53 99 d3    ....S
--
0x000000: 00 00 01 b6 55 11 33    ....U.3


So if those packets removed and DivX503b1393p (packed bitstream) removed, then
most probably the stream will be exacly the same.

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