[FFmpeg-devel] ffmpeg for bluefin bug
Adam Dershowitz, Ph.D., P.E.
Tue Mar 17 21:40:36 CET 2009
On Mar 17, 2009, at 5:06 AM, Diego Biurrun wrote:
> On Mon, Mar 16, 2009 at 02:58:37PM -0700, Adam Dershowitz wrote:
>> I was trying to compile ffmpeg 0.5 on the Blackfin, with uclinux. I
>> found a bug and then a fix.
>> I am using --enable-swscale and when it tries to link, I get a link
>> libswscale.so undefined reference to
>> Sure enough this function is used in libswscale/yuv2rgb.c:
>> lines 461:
>> #if ARCH_BFIN
>> if (c->flags & SWS_CPU_CAPS_BFIN)
>> t = sws_ff_bfin_yuv2rgb_get_func_ptr(c);
>> But I greped through the code and I can't find that function defined
>> anywhere. In fact, I only see it that single time in the code.
>> I asked around some and was told that:
>> ff_bfin_yuv2rgb_get_func_ptr in yuv2rgb_bfin.c is the correct
>> So one of these needs to be changed so that they have the same name.
>> I am not sure if this is the best place to report this bug and fix.
>> If not, please let me know where might be a better place.
Thanks....but. Now ti compiles and starts to run on my BF527 EZkit
board. I get the normal startup message and I get info on the
streams. Before any frames get converted I get an "illegal
instruction" and a core dump.
Any suggestions about this? Given the above error it looks like no
one has actually tested the blackfin specific code. I had been
running a much older version of ffmpeg from blackfin.uclinux.com that
But this new one doesn't. I have tried both with and without swscale
with the same results.
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