Question

I am trying to compile last FFmpeg for iPhone, but I am getting an error:

    CC  libavformat/asfcrypt.o
error: invalid operand in inline asm: 'ldr   ${0:Q}, $1  
    ldr   ${0:R}, $2  
    '
make: *** [libavformat/asfcrypt.o] Error 1

thanks

Answer 1

I have tried –disable-asm configuration. It works but the decoder performance is bad.

I tried edit the config.h:

#define HAVE_INLINE_ASM 0

this only disables inline assembly

or if you only some decoder in ffmpeg, just disable all other unused codec
and edit libavutil/arm/intmath.h, comment out this define:

#define av_clipl_int32 av_clipl_int32_arm

this only disable one inline assembly function and it works for me.