lavc: Deprecate avctx.rc_strategy

Only used by libxvid in ratecontrol module, so move it to a codec
private option.
Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>

libavcodec/avcodec.h

@@ -1342,9 +1342,11 @@ typedef struct AVCodecContext {
      */
     float b_quant_factor;
 
-    /** obsolete FIXME remove */
-    int rc_strategy;
+#if FF_API_RC_STRATEGY
+    /** @deprecated use codec private option instead */
+    attribute_deprecated int rc_strategy;
 #define FF_RC_STRATEGY_XVID 1
+#endif
 
     int b_frame_strategy;
 

libavcodec/mpegvideo.h

@@ -360,6 +360,7 @@ typedef struct MpegEncContext {
     int prev_mb_info, last_mb_info;
     uint8_t *mb_info_ptr;
     int mb_info_size;
+    int rc_strategy;
 
     /* H.263+ specific */
     int umvplus;                    ///< == H263+ && unrestricted_mv
@@ -573,6 +574,7 @@ typedef struct MpegEncContext {
 {"lmax", "maximum Lagrange factor (VBR)",                           FF_MPV_OFFSET(lmax), AV_OPT_TYPE_INT, {.i64 = 31*FF_QP2LAMBDA }, 0, INT_MAX, FF_MPV_OPT_FLAGS },            \
 {"ibias", "intra quant bias",                                       FF_MPV_OFFSET(intra_quant_bias), AV_OPT_TYPE_INT, {.i64 = FF_DEFAULT_QUANT_BIAS }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS },   \
 {"pbias", "inter quant bias",                                       FF_MPV_OFFSET(inter_quant_bias), AV_OPT_TYPE_INT, {.i64 = FF_DEFAULT_QUANT_BIAS }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS },   \
+{"rc_strategy", "ratecontrol method",                               FF_MPV_OFFSET(rc_strategy), AV_OPT_TYPE_INT, {.i64 = 0 }, 0, 1, FF_MPV_OPT_FLAGS },   \
 
 extern const AVOption ff_mpv_generic_options[];
 

libavcodec/options_table.h

@@ -114,7 +114,9 @@ static const AVOption avcodec_options[] = {
 {"qdiff", "maximum difference between the quantizer scales (VBR)", OFFSET(max_qdiff), AV_OPT_TYPE_INT, {.i64 = 3 }, INT_MIN, INT_MAX, V|E},
 {"bf", "use 'frames' B frames", OFFSET(max_b_frames), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, -1, INT_MAX, V|E},
 {"b_qfactor", "QP factor between P- and B-frames", OFFSET(b_quant_factor), AV_OPT_TYPE_FLOAT, {.dbl = 1.25 }, -FLT_MAX, FLT_MAX, V|E},
+#if FF_API_RC_STRATEGY
 {"rc_strategy", "ratecontrol method", OFFSET(rc_strategy), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX, V|E},
+#endif
 {"b_strategy", "strategy to choose between I/P/B-frames", OFFSET(b_frame_strategy), AV_OPT_TYPE_INT, {.i64 = 0 }, INT_MIN, INT_MAX, V|E},
 {"ps", "RTP payload size in bytes", OFFSET(rtp_payload_size), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX, V|E},
 {"mv_bits", NULL, OFFSET(mv_bits), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX},

libavcodec/ratecontrol.c

@@ -26,6 +26,8 @@
  */
 
 #include "libavutil/attributes.h"
+#include "libavutil/internal.h"
+
 #include "avcodec.h"
 #include "internal.h"
 #include "ratecontrol.h"
@@ -135,6 +137,13 @@ av_cold int ff_rate_control_init(MpegEncContext *s)
         return res;
     }
 
+#if FF_API_RC_STRATEGY
+FF_DISABLE_DEPRECATION_WARNINGS
+    if (!s->rc_strategy)
+        s->rc_strategy = s->avctx->rc_strategy;
+FF_ENABLE_DEPRECATION_WARNINGS
+#endif
+
     for (i = 0; i < 5; i++) {
         rcc->pred[i].coeff = FF_QP2LAMBDA * 7.0;
         rcc->pred[i].count = 1.0;
@@ -218,7 +227,7 @@ av_cold int ff_rate_control_init(MpegEncContext *s)
         }
 
         // FIXME maybe move to end
-        if ((s->avctx->flags & CODEC_FLAG_PASS2) && s->avctx->rc_strategy == FF_RC_STRATEGY_XVID) {
+        if ((s->avctx->flags & CODEC_FLAG_PASS2) && s->rc_strategy == 1) {
 #if CONFIG_LIBXVID
             return ff_xvid_rate_control_init(s);
 #else
@@ -298,7 +307,7 @@ av_cold void ff_rate_control_uninit(MpegEncContext *s)
     av_freep(&rcc->entry);
 
 #if CONFIG_LIBXVID
-    if ((s->avctx->flags & CODEC_FLAG_PASS2) && s->avctx->rc_strategy == FF_RC_STRATEGY_XVID)
+    if ((s->avctx->flags & CODEC_FLAG_PASS2) && s->rc_strategy == 1)
         ff_xvid_rate_control_uninit(s);
 #endif
 }
@@ -748,8 +757,7 @@ float ff_rate_estimate_qscale(MpegEncContext *s, int dry_run)
     emms_c();
 
 #if CONFIG_LIBXVID
-    if ((s->avctx->flags & CODEC_FLAG_PASS2) &&
-        s->avctx->rc_strategy == FF_RC_STRATEGY_XVID)
+    if ((s->avctx->flags & CODEC_FLAG_PASS2) && s->rc_strategy == 1)
         return ff_xvid_rate_estimate_qscale(s, dry_run);
 #endif
 

libavcodec/version.h

@@ -30,7 +30,7 @@
 
 #define LIBAVCODEC_VERSION_MAJOR 56
 #define LIBAVCODEC_VERSION_MINOR 31
-#define LIBAVCODEC_VERSION_MICRO  1
+#define LIBAVCODEC_VERSION_MICRO  2
 
 #define LIBAVCODEC_VERSION_INT  AV_VERSION_INT(LIBAVCODEC_VERSION_MAJOR, \
                                                LIBAVCODEC_VERSION_MINOR, \
@@ -168,5 +168,8 @@
 #ifndef FF_API_QUANT_BIAS
 #define FF_API_QUANT_BIAS        (LIBAVCODEC_VERSION_MAJOR < 59)
 #endif
+#ifndef FF_API_RC_STRATEGY
+#define FF_API_RC_STRATEGY       (LIBAVCODEC_VERSION_MAJOR < 59)
+#endif
 
 #endif /* AVCODEC_VERSION_H */