[Ffmpeg-devel] [Ffmpeg-devel-old] SVCD bug
Sun Jan 29 11:54:23 CET 2006
Colin Ward <lists at codehq.org> writes:
> M?ns Rullg?rd wrote:
>> I can think of many reasons to want a proper MPEG file rather than a
>> encapsulated one. The OP's file apparently causes problems for ffmpeg.
>>> I have a VCD related problem that I have been meaning to look into.
>>> I have a couple of .dat files from a couple of different VCDs. One of
>>> them plays in my FFMPEG based program and the other causes either
>>> av_open_input_file() or av_find_stream_info() to return an "unknown
>>> format" error. I can't remember exactly at the moment as I am not in
>>> front of my development computer.
>>> Why would one VCD .dat file be playable and not the other?
>> Post some samples, please.
> Sorry for the delay, I haven't been home for a few days to upload
> the samples. They can be found here:
> They are both the first 1 MB from the respective .dat files on the
> VCD. As I said, one of them opens successfully and the other
> returns an "unknown format" error. And yet they both open
> successfully with MPlayer.
Those files are both unmunged MPEG1 system streams, except for one
thing. The one that fails (Legue.dat) starts with a block of 0x11058
zeros. That is more junk than lavf searches when checking the file
mru at inprovide.com
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