[FFmpeg-devel] ffmpeg for bluefin bug
Adam Dershowitz, Ph.D., P.E.
Thu Mar 19 17:58:59 CET 2009
On Mar 19, 2009, at 3:24 AM, Diego Biurrun wrote:
> On Wed, Mar 18, 2009 at 09:11:37PM -0700, Adam Dershowitz, Ph.D.,
> P.E. wrote:
>> On Mar 18, 2009, at 5:07 PM, Diego Biurrun wrote:
>>> On Wed, Mar 18, 2009 at 04:57:16PM -0700, Adam Dershowitz, Ph.D.,
>>> P.E. wrote:
>>> Marc no longer works for AD. I know this for sure.
>> That's too bad.
>> Do you know who has done any BF related work on ffmpeg lately?
> libswscale has seen no blackfin-related work since Marc left.
>> I see that 0.5 lists Blackfin optimization as one of the changes.
>> Any idea about how to track down those details? Or does that just
>> mean that stuff that Marc did a few years ago?
> It means the stuff Marc did and some other optimizations for
>>>> But the current release of Linux on that site includes ffmpeg-
>>>> svn-11114 and that version does compile and run.
>>> Can you try to find the revision that broke?
>> Some of above info might help focus the search some. I see that a
>> of the blackfin related code is slightly different between 0.5 and
> I think you need the libswscale revision number, which is not the same
> as the FFmpeg revision number.
The tracker is now working again, so I reported the bug.
The problem shows up without swscale enabled as well. (The make file
with blackfin uclinux did not have it enabled). And with or without
it in 0.5 I get the same error. I just rebuilt without swscale enabled:
>ffmpeg -i http://192.168.23.87/~dersh/video.264 -f yuv4mpegpipe -y /
FFmpeg version 0.5, Copyright (c) 2000-2009 Fabrice Bellard, et al.
configuration: --prefix=/usr --source-path=/home/ubuntu/Blackfin/
os=linux --cpu=bfin --arch=bfin --extra-ldflags= -mcpu=bf527-0.0 --
enable-static --enable-shared --enable-gpl --enable-postproc --disable-
libavutil 49.15. 0 / 49.15. 0
libavcodec 52.20. 0 / 52.20. 0
libavformat 52.31. 0 / 52.31. 0
libavdevice 52. 1. 0 / 52. 1. 0
libpostproc 51. 2. 0 / 51. 2. 0
built on Mar 16 2009 18:57:10, gcc: 4.1.2 (ADI svn)
So the problem is not in libswscale.
More information about the ffmpeg-devel