lavc: Deprecate avctx.{inter,intra}_quant_bias

They are used by dnxhd and mpegvideo_enc exclusively, move them to codec
private options instead.
Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>

libavcodec/avcodec.h

@@ -1563,20 +1563,18 @@ typedef struct AVCodecContext {
      */
     int me_range;
 
+#if FF_API_QUANT_BIAS
     /**
-     * intra quantizer bias
-     * - encoding: Set by user.
-     * - decoding: unused
+     * @deprecated use encoder private option instead
      */
-    int intra_quant_bias;
+    attribute_deprecated int intra_quant_bias;
 #define FF_DEFAULT_QUANT_BIAS 999999
 
     /**
-     * inter quantizer bias
-     * - encoding: Set by user.
-     * - decoding: unused
+     * @deprecated use encoder private option instead
      */
-    int inter_quant_bias;
+    attribute_deprecated int inter_quant_bias;
+#endif
 
     /**
      * slice flags

libavcodec/dnxhdenc.c

@@ -45,6 +45,9 @@
 static const AVOption options[] = {
     { "nitris_compat", "encode with Avid Nitris compatibility",
         offsetof(DNXHDEncContext, nitris_compat), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 1, VE },
+    { "ibias", "intra quant bias",
+        offsetof(DNXHDEncContext, intra_quant_bias), AV_OPT_TYPE_INT,
+        { .i64 = FF_DEFAULT_QUANT_BIAS }, INT_MIN, INT_MAX, VE },
     { NULL }
 };
 
@@ -205,14 +208,14 @@ static av_cold int dnxhd_init_qmat(DNXHDEncContext *ctx, int lbias, int cbias)
             weight_matrix[j] = ctx->cid_table->luma_weight[i];
         }
         ff_convert_matrix(&ctx->m, ctx->qmatrix_l, ctx->qmatrix_l16,
-                          weight_matrix, ctx->m.intra_quant_bias, 1,
+                          weight_matrix, ctx->intra_quant_bias, 1,
                           ctx->m.avctx->qmax, 1);
         for (i = 1; i < 64; i++) {
             int j = ctx->m.idsp.idct_permutation[ff_zigzag_direct[i]];
             weight_matrix[j] = ctx->cid_table->chroma_weight[i];
         }
         ff_convert_matrix(&ctx->m, ctx->qmatrix_c, ctx->qmatrix_c16,
-                          weight_matrix, ctx->m.intra_quant_bias, 1,
+                          weight_matrix, ctx->intra_quant_bias, 1,
                           ctx->m.avctx->qmax, 1);
 
         for (qscale = 1; qscale <= ctx->m.avctx->qmax; qscale++) {
@@ -339,10 +342,15 @@ static av_cold int dnxhd_encode_init(AVCodecContext *avctx)
 
     ctx->m.mb_num = ctx->m.mb_height * ctx->m.mb_width;
 
-    if (avctx->intra_quant_bias != FF_DEFAULT_QUANT_BIAS)
-        ctx->m.intra_quant_bias = avctx->intra_quant_bias;
+#if FF_API_QUANT_BIAS
+FF_DISABLE_DEPRECATION_WARNINGS
+    if (ctx->intra_quant_bias == FF_DEFAULT_QUANT_BIAS &&
+        avctx->intra_quant_bias != FF_DEFAULT_QUANT_BIAS)
+        ctx->intra_quant_bias = avctx->intra_quant_bias;
+FF_ENABLE_DEPRECATION_WARNINGS
+#endif
     // XXX tune lbias/cbias
-    if ((ret = dnxhd_init_qmat(ctx, ctx->m.intra_quant_bias, 0)) < 0)
+    if ((ret = dnxhd_init_qmat(ctx, ctx->intra_quant_bias, 0)) < 0)
         return ret;
 
     /* Avid Nitris hardware decoder requires a minimum amount of padding

libavcodec/dnxhdenc.h

@@ -63,6 +63,7 @@ typedef struct DNXHDEncContext {
 
     int nitris_compat;
     unsigned min_padding;
+    int intra_quant_bias;
 
     DECLARE_ALIGNED(16, int16_t, blocks)[8][64];
 

libavcodec/internal.h

@@ -61,6 +61,10 @@
 #endif
 
 
+#if !FF_API_QUANT_BIAS
+#define FF_DEFAULT_QUANT_BIAS 999999
+#endif
+
 #define FF_SANE_NB_CHANNELS 63U
 
 #define FF_SIGNBIT(x) (x >> CHAR_BIT * sizeof(x) - 1)

libavcodec/mpegvideo.h

@@ -571,6 +571,8 @@ typedef struct MpegEncContext {
 {"border_mask", "increase the quantizer for macroblocks close to borders", FF_MPV_OFFSET(border_masking), AV_OPT_TYPE_FLOAT, {.dbl = 0 }, -FLT_MAX, FLT_MAX, FF_MPV_OPT_FLAGS},    \
 {"lmin", "minimum Lagrange factor (VBR)",                           FF_MPV_OFFSET(lmin), AV_OPT_TYPE_INT, {.i64 =  2*FF_QP2LAMBDA }, 0, INT_MAX, FF_MPV_OPT_FLAGS },            \
 {"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 },   \
 
 extern const AVOption ff_mpv_generic_options[];
 

libavcodec/mpegvideo_enc.c

@@ -542,10 +542,16 @@ av_cold int ff_mpv_encode_init(AVCodecContext *avctx)
         s->inter_quant_bias = -(1 << (QUANT_BIAS_SHIFT - 2));
     }
 
-    if (avctx->intra_quant_bias != FF_DEFAULT_QUANT_BIAS)
+#if FF_API_QUANT_BIAS
+FF_DISABLE_DEPRECATION_WARNINGS
+    if (s->intra_quant_bias == FF_DEFAULT_QUANT_BIAS &&
+        avctx->intra_quant_bias != FF_DEFAULT_QUANT_BIAS)
         s->intra_quant_bias = avctx->intra_quant_bias;
-    if (avctx->inter_quant_bias != FF_DEFAULT_QUANT_BIAS)
+    if (s->inter_quant_bias == FF_DEFAULT_QUANT_BIAS &&
+        avctx->inter_quant_bias != FF_DEFAULT_QUANT_BIAS)
         s->inter_quant_bias = avctx->inter_quant_bias;
+FF_ENABLE_DEPRECATION_WARNINGS
+#endif
 
     if (avctx->codec_id == AV_CODEC_ID_MPEG4 &&
         s->avctx->time_base.den > (1 << 16) - 1) {

libavcodec/options_table.h

@@ -290,8 +290,10 @@ static const AVOption avcodec_options[] = {
 {"dtg_active_format", NULL, OFFSET(dtg_active_format), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX},
 #endif
 {"me_range", "limit motion vectors range (1023 for DivX player)", OFFSET(me_range), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX, V|E},
+#if FF_API_QUANT_BIAS
 {"ibias", "intra quant bias", OFFSET(intra_quant_bias), AV_OPT_TYPE_INT, {.i64 = FF_DEFAULT_QUANT_BIAS }, INT_MIN, INT_MAX, V|E},
 {"pbias", "inter quant bias", OFFSET(inter_quant_bias), AV_OPT_TYPE_INT, {.i64 = FF_DEFAULT_QUANT_BIAS }, INT_MIN, INT_MAX, V|E},
+#endif
 {"global_quality", NULL, OFFSET(global_quality), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX, V|A|E},
 {"coder", NULL, OFFSET(coder_type), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX, V|E, "coder"},
 {"vlc", "variable length coder / Huffman coder", 0, AV_OPT_TYPE_CONST, {.i64 = FF_CODER_TYPE_VLC }, INT_MIN, INT_MAX, V|E, "coder"},

libavcodec/version.h

@@ -30,7 +30,7 @@
 
 #define LIBAVCODEC_VERSION_MAJOR 56
 #define LIBAVCODEC_VERSION_MINOR 31
-#define LIBAVCODEC_VERSION_MICRO  0
+#define LIBAVCODEC_VERSION_MICRO  1
 
 #define LIBAVCODEC_VERSION_INT  AV_VERSION_INT(LIBAVCODEC_VERSION_MAJOR, \
                                                LIBAVCODEC_VERSION_MINOR, \
@@ -165,5 +165,8 @@
 #ifndef FF_API_STREAM_CODEC_TAG
 #define FF_API_STREAM_CODEC_TAG  (LIBAVCODEC_VERSION_MAJOR < 59)
 #endif
+#ifndef FF_API_QUANT_BIAS
+#define FF_API_QUANT_BIAS        (LIBAVCODEC_VERSION_MAJOR < 59)
+#endif
 
 #endif /* AVCODEC_VERSION_H */