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                                            Chen Fan

error: invalid operand in inline asm: 'adds $1, ${2:R}, ${2:Q}, lsr #31

I met this problem too.

error: invalid operand in inline asm: 'adds $1, ${2:R}, ${2:Q}, lsr #31

This error is due to that current version of gnu assembler does not support 64bit instructions. My suggestion is to replace those 64bit assembly functions to 32bit. 2012/2/17 David Cairns...

how to use ffmpeg4ios in xcode?

1. run ./build_armv7 to build it for ios. 2. read the sample at samples/rtsp_player, which is a simple video player which demonstrates how to use ffmpeg4ios.