[MPlayer-dev-eng] mpeg4-es format

[Arpi]

Hi,

Michael said that mpeg4-es is similar to mpeg 1/2 es, there are picture
header, slices etc ...

just tried startcode search on 2 of the mpeg4-es samples on mphq:

00000000 1B0
00000005 1B5
0000000A 101
0000000E 120
0000001C 1B6
00001162 1B6
0000136B 1B6
00001405 1B6
000014A7 1B6
0000156E 1B6
00001622 1B6
000017B2 1B6
00001808 1B6
00001867 1B6
000018E9 1B6
..

and

00000000 100
00000004 120
00000018 1B6
00002AFC 1B6
000034E2 1B6
00003849 1B6
00003C04 1B6
00004CD9 1B6
000050C4 1B6
00005467 1B6
..

so it seems the first frame is prefixed by some headers, and then there is
only one chunk with startcode 1B6 for each frame? is it always true?

what do those header startcodes mean?
it seems only 120 is common, maybe it contains width/height/fps ?


A'rpi / Astral & ESP-team

--
Developer of MPlayer, the Movie Player for Linux - http://www.MPlayerHQ.hu