From c5dd0bc4ca977924825a74080ff1c294dda01427 Mon Sep 17 00:00:00 2001
From: Anton Khirnov <anton@khirnov.net>
Date: Mon, 22 Aug 2011 07:55:34 +0200
Subject: [PATCH] libx264: add 'weightp' private option.

Deprecate corresponding global option.
---
 libavcodec/avcodec.h |  4 ++--
 libavcodec/libx264.c | 11 ++++++++++-
 libavcodec/options.c |  4 +++-
 3 files changed, 15 insertions(+), 4 deletions(-)

diff --git a/libavcodec/avcodec.h b/libavcodec/avcodec.h
index 77544e3..414b150 100644
--- a/libavcodec/avcodec.h
+++ b/libavcodec/avcodec.h
@@ -2712,6 +2712,7 @@ typedef struct AVCodecContext {
      */
     int (*execute2)(struct AVCodecContext *c, int (*func)(struct AVCodecContext *c2, void *arg, int jobnr, int threadnr), void *arg2, int *ret, int count);
 
+#if FF_API_X264_GLOBAL_OPTS
     /**
      * explicit P-frame weighted prediction analysis method
      * 0: off
@@ -2720,9 +2721,8 @@ typedef struct AVCodecContext {
      * - encoding: Set by user.
      * - decoding: unused
      */
-    int weighted_p_pred;
+    attribute_deprecated int weighted_p_pred;
 
-#if FF_API_X264_GLOBAL_OPTS
     /**
      * AQ mode
      * 0: Disabled
diff --git a/libavcodec/libx264.c b/libavcodec/libx264.c
index 72033b9..435f228 100644
--- a/libavcodec/libx264.c
+++ b/libavcodec/libx264.c
@@ -48,6 +48,7 @@ typedef struct X264Context {
     float psy_rd;
     float psy_trellis;
     int rc_lookahead;
+    int weightp;
 } X264Context;
 
 static void X264_log(void *p, int level, const char *fmt, va_list args)
@@ -225,7 +226,6 @@ static av_cold int X264_init(AVCodecContext *avctx)
     x4->params.analyse.i_direct_mv_pred  = avctx->directpred;
 
     x4->params.analyse.b_weighted_bipred = avctx->flags2 & CODEC_FLAG2_WPRED;
-    x4->params.analyse.i_weighted_pred = avctx->weighted_p_pred;
 
     if (avctx->me_method == ME_EPZS)
         x4->params.analyse.i_me_method = X264_ME_DIA;
@@ -318,6 +318,8 @@ static av_cold int X264_init(AVCodecContext *avctx)
         x4->params.analyse.f_psy_trellis      = avctx->psy_trellis;
     if (avctx->rc_lookahead >= 0)
         x4->params.rc.i_lookahead             = avctx->rc_lookahead;
+    if (avctx->weighted_p_pred >= 0)
+        x4->params.analyse.i_weighted_pred    = avctx->weighted_p_pred;
 #endif
 
     if (x4->aq_mode >= 0)
@@ -330,6 +332,9 @@ static av_cold int X264_init(AVCodecContext *avctx)
         x4->params.analyse.f_psy_trellis = x4->psy_trellis;
     if (x4->rc_lookahead >= 0)
         x4->params.rc.i_lookahead = x4->rc_lookahead;
+    if (x4->weightp >= 0)
+        x4->params.analyse.i_weighted_pred = x4->weightp;
+
 
 
     if (x4->fastfirstpass)
@@ -414,6 +419,10 @@ static const AVOption options[] = {
     { "pdy_rd",        "Psy RD strength.",                                OFFSET(psy_rd),        FF_OPT_TYPE_FLOAT,  {-1 }, -1, FLT_MAX, VE},
     { "psy_trellis",   "Psy trellis strength",                            OFFSET(psy_trellis),   FF_OPT_TYPE_FLOAT,  {-1 }, -1, FLT_MAX, VE},
     { "rc_lookahead",  "Number of frames to look ahead for frametype and ratecontrol", OFFSET(rc_lookahead), FF_OPT_TYPE_INT, {-1 }, -1, INT_MAX, VE },
+    { "weightp",       "Weighted prediction analysis method.",            OFFSET(weightp),       FF_OPT_TYPE_INT,    {-1 }, -1, INT_MAX, VE, "weightp" },
+    { "none",          NULL, 0, FF_OPT_TYPE_CONST, {X264_WEIGHTP_NONE},   INT_MIN, INT_MAX, VE, "weightp" },
+    { "simple",        NULL, 0, FF_OPT_TYPE_CONST, {X264_WEIGHTP_SIMPLE}, INT_MIN, INT_MAX, VE, "weightp" },
+    { "smart",         NULL, 0, FF_OPT_TYPE_CONST, {X264_WEIGHTP_SMART},  INT_MIN, INT_MAX, VE, "weightp" },
     { NULL },
 };
 
diff --git a/libavcodec/options.c b/libavcodec/options.c
index 00a4376..6d40ef0 100644
--- a/libavcodec/options.c
+++ b/libavcodec/options.c
@@ -141,7 +141,9 @@ static const AVOption options[]={
 {"b_qfactor", "qp factor between p and b frames", OFFSET(b_quant_factor), FF_OPT_TYPE_FLOAT, {.dbl = 1.25 }, -FLT_MAX, FLT_MAX, V|E},
 {"rc_strategy", "ratecontrol method", OFFSET(rc_strategy), FF_OPT_TYPE_INT, {.dbl = DEFAULT }, INT_MIN, INT_MAX, V|E},
 {"b_strategy", "strategy to choose between I/P/B-frames", OFFSET(b_frame_strategy), FF_OPT_TYPE_INT, {.dbl = 0 }, INT_MIN, INT_MAX, V|E},
-{"wpredp", "weighted prediction analysis method", OFFSET(weighted_p_pred), FF_OPT_TYPE_INT, {.dbl = 0 }, INT_MIN, INT_MAX, V|E},
+#if FF_API_X264_GLOBAL_OPTS
+{"wpredp", "weighted prediction analysis method", OFFSET(weighted_p_pred), FF_OPT_TYPE_INT, {.dbl = -1 }, INT_MIN, INT_MAX, V|E},
+#endif
 {"ps", "rtp payload size in bytes", OFFSET(rtp_payload_size), FF_OPT_TYPE_INT, {.dbl = DEFAULT }, INT_MIN, INT_MAX, V|E},
 {"mv_bits", NULL, OFFSET(mv_bits), FF_OPT_TYPE_INT, {.dbl = DEFAULT }, INT_MIN, INT_MAX},
 {"header_bits", NULL, OFFSET(header_bits), FF_OPT_TYPE_INT, {.dbl = DEFAULT }, INT_MIN, INT_MAX},
-- 
2.7.4