[FFmpeg-devel] [PATCH] Add detection for sincos usage without sincos implementation.

Michael Niedermayer michaelni at gmx.at
Wed Sep 5 20:07:49 CEST 2012

On Wed, Sep 05, 2012 at 10:50:42AM -0700, Raymond Toy wrote:
> When building ffmpeg on Android, I ran into a problem where the compiler
> (gcc) would convert successive calls to sin() and cos() to a single call to
> sincos().  However on Android, sincos() isn't implemented so ffmpeg won't
> run.

this sounds like theres a problem in your build system, and IMHO it
should be fixed there. That is either your compiler should not
add calls to sincos or the libs have to provide this function.

Also if this is a problem that does affect more than your box then
you would help many more people if the compiler or lib is fixed than
if a workaround is added to ffmpeg.

Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB

No snowflake in an avalanche ever feels responsible. -- Voltaire
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