AV_PIX_FMT_YA16BE, ///< 16bit gray, 16bit alpha (big-endian)
AV_PIX_FMT_YA16LE, ///< 16bit gray, 16bit alpha (little-endian)
+ /**
+ * duplicated pixel formats for compatibility with libav.
+ * FFmpeg supports these formats since May 3 2013 (commit e6d4e687558d08187e7a415a7725e4b1a416f782)
+ * Libav added them Jan 14 2015 with incompatible values (commit 0e6c7dfa650e8b0497bfa7a06394b7a462ddc33a)
+ */
AV_PIX_FMT_GBRAP_LIBAV, ///< planar GBRA 4:4:4:4 32bpp
AV_PIX_FMT_GBRAP16BE_LIBAV, ///< planar GBRA 4:4:4:4 64bpp, big-endian
AV_PIX_FMT_GBRAP16LE_LIBAV, ///< planar GBRA 4:4:4:4 64bpp, little-endian