lavu/pixfmt: deprecate AV_PIX_FMT_XVMC

It is no longer used for anything.

libavutil/pixdesc.c

@@ -432,10 +432,12 @@ static const AVPixFmtDescriptor av_pix_fmt_descriptors[AV_PIX_FMT_NB] = {
         },
         .flags = AV_PIX_FMT_FLAG_PLANAR,
     },
+#if FF_API_XVMC
     [AV_PIX_FMT_XVMC] = {
         .name = "xvmc",
         .flags = AV_PIX_FMT_FLAG_HWACCEL,
     },
+#endif
     [AV_PIX_FMT_UYVY422] = {
         .name = "uyvy422",
         .nb_components = 3,

libavutil/pixfmt.h

@@ -260,7 +260,9 @@ enum AVPixelFormat {
     AV_PIX_FMT_BAYER_GRBG16LE, ///< bayer, GRGR..(odd line), BGBG..(even line), 16-bit samples, little-endian
     AV_PIX_FMT_BAYER_GRBG16BE, ///< bayer, GRGR..(odd line), BGBG..(even line), 16-bit samples, big-endian
 
+#if FF_API_XVMC
     AV_PIX_FMT_XVMC,///< XVideo Motion Acceleration via common packet passing
+#endif
 
     AV_PIX_FMT_YUV440P10LE, ///< planar YUV 4:4:0,20bpp, (1 Cr & Cb sample per 1x2 Y samples), little-endian
     AV_PIX_FMT_YUV440P10BE, ///< planar YUV 4:4:0,20bpp, (1 Cr & Cb sample per 1x2 Y samples), big-endian

libavutil/version.h

@@ -111,6 +111,7 @@
 #define FF_API_AV_MALLOCZ_ARRAY         (LIBAVUTIL_VERSION_MAJOR < 58)
 #define FF_API_FIFO_PEEK2               (LIBAVUTIL_VERSION_MAJOR < 58)
 #define FF_API_FIFO_OLD_API             (LIBAVUTIL_VERSION_MAJOR < 58)
+#define FF_API_XVMC                     (LIBAVUTIL_VERSION_MAJOR < 58)
 
 /**
  * @}