libx264: add 'aq_strength' private option.

Deprecate corresponding global option.

libavcodec/avcodec.h

@@ -2732,7 +2732,6 @@ typedef struct AVCodecContext {
      * - decoding: unused
      */
     attribute_deprecated int aq_mode;
-#endif
 
     /**
      * AQ strength
@@ -2740,7 +2739,8 @@ typedef struct AVCodecContext {
      * - encoding: Set by user
      * - decoding: unused
      */
-    float aq_strength;
+    attribute_deprecated float aq_strength;
+#endif
 
     /**
      * PSY RD

libavcodec/libx264.c

@@ -44,6 +44,7 @@ typedef struct X264Context {
     float crf;
     int cqp;
     int aq_mode;
+    float aq_strength;
 } X264Context;
 
 static void X264_log(void *p, int level, const char *fmt, va_list args)
@@ -235,7 +236,6 @@ static av_cold int X264_init(AVCodecContext *avctx)
         x4->params.analyse.i_me_method = X264_ME_TESA;
     else x4->params.analyse.i_me_method = X264_ME_HEX;
 
-    x4->params.rc.f_aq_strength           = avctx->aq_strength;
     x4->params.rc.i_lookahead             = avctx->rc_lookahead;
 
     x4->params.analyse.b_psy              = avctx->flags2 & CODEC_FLAG2_PSY;
@@ -311,11 +311,14 @@ static av_cold int X264_init(AVCodecContext *avctx)
 #if FF_API_X264_GLOBAL_OPTS
     if (avctx->aq_mode >= 0)
         x4->params.rc.i_aq_mode = avctx->aq_mode;
+    if (avctx->aq_strength >= 0)
+        x4->params.rc.f_aq_strength = avctx->aq_strength;
 #endif
 
     if (x4->aq_mode >= 0)
         x4->params.rc.i_aq_mode = x4->aq_mode;
-
+    if (x4->aq_strength >= 0)
+        x4->params.rc.f_aq_strength = x4->aq_strength;
 
     if (x4->fastfirstpass)
         x264_param_apply_fastfirstpass(&x4->params);
@@ -395,6 +398,7 @@ static const AVOption options[] = {
     { "none",          NULL,                              0, FF_OPT_TYPE_CONST, {X264_AQ_NONE},         INT_MIN, INT_MAX, VE, "aq_mode" },
     { "variance",      "Variance AQ (complexity mask)",   0, FF_OPT_TYPE_CONST, {X264_AQ_VARIANCE},     INT_MIN, INT_MAX, VE, "aq_mode" },
     { "autovariance",  "Auto-variance AQ (experimental)", 0, FF_OPT_TYPE_CONST, {X264_AQ_AUTOVARIANCE}, INT_MIN, INT_MAX, VE, "aq_mode" },
+    { "aq_strength",   "AQ strength. Reduces blocking and blurring in flat and textured areas.", OFFSET(aq_strength), FF_OPT_TYPE_FLOAT, {-1}, -1, FLT_MAX, VE},
     { NULL },
 };
 

libavcodec/options.c

@@ -441,8 +441,8 @@ static const AVOption options[]={
 {"psy_trellis", "specify psycho visual trellis", OFFSET(psy_trellis), FF_OPT_TYPE_FLOAT, {.dbl = 0 }, 0, FLT_MAX, V|E},
 #if FF_API_X264_GLOBAL_OPTS
 {"aq_mode", "specify aq method", OFFSET(aq_mode), FF_OPT_TYPE_INT, {.dbl = -1 }, -1, INT_MAX, V|E},
+{"aq_strength", "specify aq strength", OFFSET(aq_strength), FF_OPT_TYPE_FLOAT, {.dbl = -1.0 }, -1, FLT_MAX, V|E},
 #endif
-{"aq_strength", "specify aq strength", OFFSET(aq_strength), FF_OPT_TYPE_FLOAT, {.dbl = 1.0 }, 0, FLT_MAX, V|E},
 {"rc_lookahead", "specify number of frames to look ahead for frametype", OFFSET(rc_lookahead), FF_OPT_TYPE_INT, {.dbl = 40 }, 0, INT_MAX, V|E},
 {"ssim", "ssim will be calculated during encoding", 0, FF_OPT_TYPE_CONST, {.dbl = CODEC_FLAG2_SSIM }, INT_MIN, INT_MAX, V|E, "flags2"},
 {"intra_refresh", "use periodic insertion of intra blocks instead of keyframes", 0, FF_OPT_TYPE_CONST, {.dbl = CODEC_FLAG2_INTRA_REFRESH }, INT_MIN, INT_MAX, V|E, "flags2"},