lavc: make the xvid-specific "gmc" flag a private option of libxvid

doc/APIchanges

@@ -13,6 +13,10 @@ libavutil:     2013-12-xx
 
 API changes, most recent first:
 
+2014-04-xx - xxxxxxx - lavc 55.50.2 - avcodec.h
+  Deprecate CODEC_FLAG_GMC. It is replaced by the "gmc" private option of the
+  libxvid encoder.
+
 2014-04-xx - xxxxxxx - lavc 55.50.1 - avcodec.h
   Deprecate CODEC_FLAG_NORMALIZE_AQP. It is replaced by the flag "naq" in the
   "mpv_flags" private option of the mpegvideo encoders.

libavcodec/avcodec.h

@@ -669,7 +669,12 @@ typedef struct RcOverride{
 #define CODEC_FLAG_4MV    0x0004  ///< 4 MV per MB allowed / advanced prediction for H.263.
 #define CODEC_FLAG_OUTPUT_CORRUPT 0x0008 ///< Output even those frames that might be corrupted
 #define CODEC_FLAG_QPEL   0x0010  ///< Use qpel MC.
+#if FF_API_GMC
+/**
+ * @deprecated use the "gmc" private option of the libxvid encoder
+ */
 #define CODEC_FLAG_GMC    0x0020  ///< Use GMC.
+#endif
 #define CODEC_FLAG_MV0    0x0040  ///< Always try a MB with MV=<0,0>.
 #if FF_API_INPUT_PRESERVED
 /**

libavcodec/libxvid.c

@@ -64,6 +64,7 @@ struct xvid_context {
     int variance_aq;               /**< Variance adaptive quantization */
     int ssim;                      /**< SSIM information display mode */
     int ssim_acc;                  /**< SSIM accuracy. 0: accurate. 4: fast. */
+    int gmc;
 };
 
 /**
@@ -416,8 +417,13 @@ static av_cold int xvid_encode_init(AVCodecContext *avctx)  {
     }
 
     /* Bring in VOL flags from avconv command-line */
+#if FF_API_GMC
+    if (avctx->flags & CODEC_FLAG_GMC)
+        x->gmc = 1;
+#endif
+
     x->vol_flags = 0;
-    if( xvid_flags & CODEC_FLAG_GMC ) {
+    if (x->gmc) {
         x->vol_flags |= XVID_VOL_GMC;
         x->me_flags |= XVID_ME_GME_REFINE;
     }
@@ -799,6 +805,7 @@ static const AVOption options[] = {
         { "avg",     NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 1 }, INT_MIN, INT_MAX, VE, "ssim" },
         { "frame",   NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 2 }, INT_MIN, INT_MAX, VE, "ssim" },
     { "ssim_acc",    "SSIM accuracy",                         OFFSET(ssim_acc),          AV_OPT_TYPE_INT, { .i64 = 2 }, 0, 4, VE },
+    { "gmc",         "use GMC",              OFFSET(gmc),         AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 1, VE },
     { NULL },
 };
 

libavcodec/options_table.h

@@ -52,7 +52,9 @@ static const AVOption avcodec_options[] = {
 {"qpel", "use 1/4-pel motion compensation", 0, AV_OPT_TYPE_CONST, {.i64 = CODEC_FLAG_QPEL }, INT_MIN, INT_MAX, V|E, "flags"},
 {"loop", "use loop filter", 0, AV_OPT_TYPE_CONST, {.i64 = CODEC_FLAG_LOOP_FILTER }, INT_MIN, INT_MAX, V|E, "flags"},
 {"qscale", "use fixed qscale", 0, AV_OPT_TYPE_CONST, {.i64 = CODEC_FLAG_QSCALE }, INT_MIN, INT_MAX, 0, "flags"},
+#if FF_API_GMC
 {"gmc", "use gmc", 0, AV_OPT_TYPE_CONST, {.i64 = CODEC_FLAG_GMC }, INT_MIN, INT_MAX, V|E, "flags"},
+#endif
 {"mv0", "always try a mb with mv=<0,0>", 0, AV_OPT_TYPE_CONST, {.i64 = CODEC_FLAG_MV0 }, INT_MIN, INT_MAX, V|E, "flags"},
 #if FF_API_INPUT_PRESERVED
 {"input_preserved", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = CODEC_FLAG_INPUT_PRESERVED }, INT_MIN, INT_MAX, 0, "flags"},

libavcodec/version.h

@@ -30,7 +30,7 @@
 
 #define LIBAVCODEC_VERSION_MAJOR 55
 #define LIBAVCODEC_VERSION_MINOR 50
-#define LIBAVCODEC_VERSION_MICRO  1
+#define LIBAVCODEC_VERSION_MICRO  2
 
 #define LIBAVCODEC_VERSION_INT  AV_VERSION_INT(LIBAVCODEC_VERSION_MAJOR, \
                                                LIBAVCODEC_VERSION_MINOR, \
@@ -135,5 +135,8 @@
 #ifndef FF_API_NORMALIZE_AQP
 #define FF_API_NORMALIZE_AQP     (LIBAVCODEC_VERSION_MAJOR < 57)
 #endif
+#ifndef FF_API_GMC
+#define FF_API_GMC               (LIBAVCODEC_VERSION_MAJOR < 57)
+#endif
 
 #endif /* AVCODEC_VERSION_H */