[FFmpeg-soc] BFI (was: YOP)

Sisir Koppaka sisir.koppaka at gmail.com
Thu Mar 20 20:54:33 CET 2008


On Fri, Mar 21, 2008 at 1:17 AM, Mike Melanson <mike at multimedia.cx> wrote:

> Sisir Koppaka wrote:
> > Hi,
> > Running ffmpeg -i <filename.notbfi> gives :
> > Input #0, bfi, from '2287.mov':
> >   Duration: N/A, bitrate: N/A
> >
> > so, I guess the probe function is working and it's not using the
> extension
> > to detect it.
>
> This strikes me as strange. What does your probe function look like?
> When I run './ffmpeg -i' on a supported file it looks something like:
>

I renamed the 2287.bfi file to 2287.mov just to check that my skeleton
demuxer was able to recognize it as BFI by examining it's header
irrespective of the extension(As Vitor suggested to check). The probe
function just checks for the characters BF&I in the header of the file.

>
> $ ./ffmpeg -i /mnt/fate-suite/8bps/full9iron-partial.mov
> FFmpeg version SVN-r12406, Copyright (c) 2000-2008 Fabrice Bellard, et al.
>  configuration: --cc=ccache /usr/local/gcc-4.3.0/bin/gcc
>  libavutil version: 49.6.0
>  libavcodec version: 51.51.0
>  libavformat version: 52.9.0
>  libavdevice version: 52.0.0
>  built on Mar 12 2008 18:57:07, gcc: 4.3.0
> Input #0, mov,mp4,m4a,3gp,3g2,mj2, from
> '/mnt/fate-suite/8bps/full9iron-partial.mov':
>  Duration: 00:00:13.5, start: 0.000000, bitrate: 620 kb/s
>    Stream #0.0(eng): Video: 8bps, pal8, 360x240, 12.50 tb(r)
>    Stream #0.1(eng): Audio: pcm_u8, 22050 Hz, mono, 176 kb/s
> Must supply at least one output file
>
>
> Notice how the duration, bitrate, and streams are all specified and valid.
>
> About communication: work with what you have. We're here on these lists
> all day.
>
> --
>        -Mike Melanson
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>



-- 
-----------------
Sisir Koppaka



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