libx264: add 'mixed-refs' private option.

Deprecate CODEC_FLAG2_MIXED_REFS.

libavcodec/avcodec.h

@@ -610,8 +610,8 @@ typedef struct RcOverride{
 #if FF_API_X264_GLOBAL_OPTS
 #define CODEC_FLAG2_BPYRAMID      0x00000010 ///< H.264 allow B-frames to be used as references.
 #define CODEC_FLAG2_WPRED         0x00000020 ///< H.264 weighted biprediction for B-frames
-#endif
 #define CODEC_FLAG2_MIXED_REFS    0x00000040 ///< H.264 one reference per partition, as opposed to one reference per macroblock
+#endif
 #define CODEC_FLAG2_8X8DCT        0x00000080 ///< H.264 high profile 8x8 transform
 #define CODEC_FLAG2_FASTPSKIP     0x00000100 ///< H.264 fast pskip
 #define CODEC_FLAG2_AUD           0x00000200 ///< H.264 access unit delimiters

libavcodec/libx264.c

@@ -53,6 +53,7 @@ typedef struct X264Context {
     int ssim;
     int intra_refresh;
     int b_pyramid;
+    int mixed_refs;
 } X264Context;
 
 static void X264_log(void *p, int level, const char *fmt, va_list args)
@@ -244,7 +245,6 @@ static av_cold int X264_init(AVCodecContext *avctx)
     x4->params.analyse.i_me_range         = avctx->me_range;
     x4->params.analyse.i_subpel_refine    = avctx->me_subpel_quality;
 
-    x4->params.analyse.b_mixed_references = avctx->flags2 & CODEC_FLAG2_MIXED_REFS;
     x4->params.analyse.b_chroma_me        = avctx->me_cmp & FF_CMP_CHROMA;
     x4->params.analyse.b_transform_8x8    = avctx->flags2 & CODEC_FLAG2_8X8DCT;
     x4->params.analyse.b_fast_pskip       = avctx->flags2 & CODEC_FLAG2_FASTPSKIP;
@@ -326,6 +326,7 @@ static av_cold int X264_init(AVCodecContext *avctx)
     x4->params.b_intra_refresh = avctx->flags2 & CODEC_FLAG2_INTRA_REFRESH;
     x4->params.i_bframe_pyramid = avctx->flags2 & CODEC_FLAG2_BPYRAMID ? X264_B_PYRAMID_NORMAL : X264_B_PYRAMID_NONE;
     x4->params.analyse.b_weighted_bipred = avctx->flags2 & CODEC_FLAG2_WPRED;
+    x4->params.analyse.b_mixed_references = avctx->flags2 & CODEC_FLAG2_MIXED_REFS;
 #endif
 
     if (x4->aq_mode >= 0)
@@ -349,7 +350,8 @@ static av_cold int X264_init(AVCodecContext *avctx)
         x4->params.b_intra_refresh = x4->intra_refresh;
     if (x4->b_pyramid >= 0)
         x4->params.i_bframe_pyramid = x4->b_pyramid;
-
+    if (x4->mixed_refs >= 0)
+        x4->params.analyse.b_mixed_references = x4->mixed_refs;
 
     if (x4->fastfirstpass)
         x264_param_apply_fastfirstpass(&x4->params);
@@ -443,6 +445,7 @@ static const AVOption options[] = {
     { "none",          NULL,                                  0, FF_OPT_TYPE_CONST, {X264_B_PYRAMID_NONE},   INT_MIN, INT_MAX, VE, "b_pyramid" },
     { "strict",        "Strictly hierarchical pyramid",       0, FF_OPT_TYPE_CONST, {X264_B_PYRAMID_STRICT}, INT_MIN, INT_MAX, VE, "b_pyramid" },
     { "normal",        "Non-strict (not Blu-ray compatible)", 0, FF_OPT_TYPE_CONST, {X264_B_PYRAMID_NORMAL}, INT_MIN, INT_MAX, VE, "b_pyramid" },
+    { "mixed-refs",    "One reference per partition, as opposed to one reference per macroblock", OFFSET(mixed_refs), FF_OPT_TYPE_INT, {-1}, -1, 1, VE },
     { NULL },
 };
 

libavcodec/options.c

@@ -390,8 +390,8 @@ static const AVOption options[]={
 #if FF_API_X264_GLOBAL_OPTS
 {"bpyramid", "allows B-frames to be used as references for predicting", 0, FF_OPT_TYPE_CONST, {.dbl = CODEC_FLAG2_BPYRAMID }, INT_MIN, INT_MAX, V|E, "flags2"},
 {"wpred", "weighted biprediction for b-frames (H.264)", 0, FF_OPT_TYPE_CONST, {.dbl = CODEC_FLAG2_WPRED }, INT_MIN, INT_MAX, V|E, "flags2"},
-#endif
 {"mixed_refs", "one reference per partition, as opposed to one reference per macroblock", 0, FF_OPT_TYPE_CONST, {.dbl = CODEC_FLAG2_MIXED_REFS }, INT_MIN, INT_MAX, V|E, "flags2"},
+#endif
 {"dct8x8", "high profile 8x8 transform (H.264)", 0, FF_OPT_TYPE_CONST, {.dbl = CODEC_FLAG2_8X8DCT }, INT_MIN, INT_MAX, V|E, "flags2"},
 {"fastpskip", "fast pskip (H.264)", 0, FF_OPT_TYPE_CONST, {.dbl = CODEC_FLAG2_FASTPSKIP }, INT_MIN, INT_MAX, V|E, "flags2"},
 {"aud", "access unit delimiters (H.264)", 0, FF_OPT_TYPE_CONST, {.dbl = CODEC_FLAG2_AUD }, INT_MIN, INT_MAX, V|E, "flags2"},