Thanks,
Al
Al Adler wrote:
Attached is the hexdump file. Where is in the header is the fourcc that you're saying should be changed? I didn't see that string in the first 1024 bytes, or is it further in?
Thanks
Al
Ronald Bultje wrote:
Hi,
On Wed, 5 May 2004, Al Adler wrote:
I have a number of Mjpeg avi files recorded using the windows based
software that comes with a Matrox Marvel card. I'm trying to use mjpeg
tools to do some transcoding of these to Mpeg2. However none of the
tools seem to be able to read the frames of these files. Lavplay says
"error playing a frame" for every frame and displays a window with
assorted color bars. Similar results occur for the other utilities. The
output of lavinfo is below, you can see a warning message about the JPEG
format. For reference, these files can be played back fine using either
Quicktime 5 or the windows based Matrox video player.
++ WARN: [lavinfo] Input file favmistake.avi is not in
JPEG 4:2:2 or 4:2:0 format
Can you hexdump the first 1 kB and send it to the list? I need to see the
AVI header to guess what's wrong. You can probably fix it by changing the
fourcc in the AVI file to 'MJPG'.
Ronald
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------------------------------------------------------------------------
0000000 4952 4646 a640 2a92 5641 2049 494c 5453
0000010 0134 0000 6468 6c72 7661 6869 0038 0000
0000020 8235 0000 b000 0004 0000 0000 0010 0000
0000030 1dc6 0000 0000 0000 0002 0000 7410 02ad
0000040 02c0 0000 01e0 0000 0000 0000 0000 0000
0000050 0000 0000 0000 0000 494c 5453 007c 0000
0000060 7473 6c72 7473 6872 0040 0000 6976 7364
0000070 6d64 3162 0000 0000 0000 0000 0000 0000
0000080 0064 0000 0bb8 0000 0000 0000 1dc6 0000
0000090 9840 0001 0000 0000 0000 0000 0000 0000
00000a0 0000 0000 0000 0000 0000 0000 7473 6672
00000b0 0028 0000 0028 0000 02c0 0000 01e0 0000
00000c0 0001 0018 6d64 3162 0000 0004 0000 0000
00000d0 0000 0000 0000 0000 0000 0000 494c 5453
00000e0 0064 0000 7473 6c72 7473 6872 0040 0000
00000f0 7561 7364 0000 0000 0000 0000 0000 0000
0000100 0000 0000 0004 0000 b110 0002 0000 0000
0000110 f6f4 00aa dbd0 02ab 2710 0000 0004 0000
0000120 0000 0000 0000 0000 0000 0000 0000 0000
0000130 7473 6672 0010 0000 0001 0002 ac44 0000
0000140 b110 0002 0004 0010 554a 4b4e 0ea4 0000
0000150 0000 0000 0000 0000 0000 0000 0000 0000
*
0000200 878b 03ae 5299 2650 b7ff 03b2 ff26 b0b7
0000210 2603 77ff 2614 77ff 8d12 b487 0603 9a50
0000220 262e 0438 c483 0b10 75c0 830c fe7e 7402
0000230 e903 ff48 b5e9 c4fe fa5e 8b26 1247 8b26
0000240 1457 8926 0647 8926 0857 8b26 ca87 2603
0000250 8789 03f4 468d 16f4 0650 9a53 3790 0290
0000260 c483 0b08 74c0 83c4 f47e 7400 c4be fa5e
0000270 8b26 2587 4805 0650 9a53 36a4 0290 c483
0000280 0b06 75c0 e903 ff69 76ff fffc fa76 e80e
0000290 f4fa c483 0b04 75c0 e903 ff55 46c7 02fe
00002a0 eb00 c788 fe46 0000 76ff fffc fa76 ac9a
00002b0 9001 8302 04c4 468b 5efe cbc9 0000 0000
00002c0 86c8 0000 8356 167e 7e40 3305 5ec0 cbc9
00002d0 46c7 00fe b800 ffff 8689 ff7a 4689 ebfc
00002e0 ff12 fc46 468b fffc fe46 768b 03fe 89f6
00002f0 7a82 8bff 1646 4639 7dfe 8322 fc7e 7c00
0000300 c4e0 125e 768b 26fe 008a 768b 26fc 0038
0000310 cf74 f603 828b ff7a 4689 ebfc ffde 0a76
0000320 76ff ff1a 1876 006a 5ec4 2606 5fff 3b10
0000330 1846 9775 563b 751a c792 fc46 0000 468b
0000340 8b18 1a56 5639 731e e903 0185 0877 4639
0000350 771c e903 017b 4e8b 8b1c 1e5e c82b da1b
0000360 468b 9910 da3b 0c77 0472 c83b 0673 468b
0000370 2b1c 1846 4689 fffa 0a76 76ff ff0e 0c76
0000380 c450 065e ff26 085f 463b 74fa e903 ff3b
0000390 46c7 00fe e900 00ed 5ec4 8b0c fe76 8026
00003a0 2000 d4e9 2d00 0009 513d 7600 e903 00c9
00003b0 c003 2e93 a7ff 00f8 01c2 01c2 01b9 01b9
00003c0 01c2 01b9 01b9 01b9 01b9 01b9 01b9 01b9
00003d0 01b9 01b9 01b9 01b9 01b9 01b9 01b9 01b9
00003e0 01b9 01b9 01b9 01c2 01b9 01b9 01b9 01b9
00003f0 01b9 01b9 01b9 01b9 01b9 01b9 01b9 01b9
0000400
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