#pragma once #include /* LIBAVCODEC_VERSION_CHECK checks for the right version of libav and FFmpeg * a is the major version * b and c the minor and micro versions of libav * d and e the minor and micro versions of FFmpeg */ #define LIBAVCODEC_VERSION_CHECK( a, b, c, d, e ) \ ( (LIBAVCODEC_VERSION_MICRO < 100 && LIBAVCODEC_VERSION_INT >= AV_VERSION_INT( a, b, c ) ) || \ (LIBAVCODEC_VERSION_MICRO >= 100 && LIBAVCODEC_VERSION_INT >= AV_VERSION_INT( a, d, e ) ) ) #if !LIBAVCODEC_VERSION_CHECK(54, 28, 0, 59, 100) # define avcodec_free_frame av_freep #endif #if LIBAVCODEC_VERSION_INT < 0x371c01 # define av_frame_alloc avcodec_alloc_frame # define av_frame_unref avcodec_get_frame_defaults # define av_frame_free avcodec_free_frame #endif