lavc: Move mpeg_quant to codec private options

This option is only used by mpegvideoenc, and xvid.
It is a very codec-specific option, so deprecate the global variant.
Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>

libavcodec/avcodec.h

@@ -1615,12 +1615,11 @@ typedef struct AVCodecContext {
      */
     int has_b_frames;
 
-    /**
-     * 0-> h263 quant 1-> mpeg quant
-     * - encoding: Set by user.
-     * - decoding: unused
-     */
+#if FF_API_PRIVATE_OPT
+    /** @deprecated use encoder private options instead */
+    attribute_deprecated
     int mpeg_quant;
+#endif
 
     /**
      * qscale factor between P and I-frames

libavcodec/libxvid.c

@@ -74,6 +74,7 @@ struct xvid_context {
     int ssim_acc;                  /**< SSIM accuracy. 0: accurate. 4: fast. */
     int gmc;
     int me_quality;                /**< Motion estimation quality. 0: fast 6: best. */
+    int mpeg_quant;                /**< Quantization type. 0: H263, 1: MPEG */
 };
 
 /**
@@ -613,7 +614,15 @@ FF_ENABLE_DEPRECATION_WARNINGS
     /* Quant Matrices */
     x->intra_matrix =
     x->inter_matrix = NULL;
+
+#if FF_API_PRIVATE_OPT
+FF_DISABLE_DEPRECATION_WARNINGS
     if (avctx->mpeg_quant)
+        x->mpeg_quant = avctx->mpeg_quant;
+FF_ENABLE_DEPRECATION_WARNINGS
+#endif
+
+    if (x->mpeg_quant)
         x->vol_flags |= XVID_VOL_MPEGQUANT;
     if ((avctx->intra_matrix || avctx->inter_matrix)) {
         x->vol_flags |= XVID_VOL_MPEGQUANT;
@@ -854,6 +863,7 @@ static const AVOption options[] = {
     { "ssim_acc",    "SSIM accuracy",                   OFFSET(ssim_acc),    AV_OPT_TYPE_INT,   { .i64 = 2 },       0,       4, VE         },
     { "gmc",         "use GMC",                         OFFSET(gmc),         AV_OPT_TYPE_INT,   { .i64 = 0 },       0,       1, VE         },
     { "me_quality",  "Motion estimation quality",       OFFSET(me_quality),  AV_OPT_TYPE_INT,   { .i64 = 0 },       0,       6, VE         },
+    { "mpeg_quant",  "Use MPEG quantizers instead of H.263", OFFSET(mpeg_quant), AV_OPT_TYPE_INT, { .i64 = 0 },     0,       1, VE         },
     { NULL },
 };
 

libavcodec/mpegvideo.h

@@ -611,6 +611,7 @@ FF_MPV_OPT_CMP_FUNC, \
 {"skip_cmp", "Frame skip compare function",                         FF_MPV_OFFSET(frame_skip_cmp), AV_OPT_TYPE_INT, {.i64 = FF_CMP_DCTMAX }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS, "cmp_func" }, \
 {"sc_threshold", "Scene change threshold",                          FF_MPV_OFFSET(scenechange_threshold), AV_OPT_TYPE_INT, {.i64 = 0 }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS }, \
 {"noise_reduction", "Noise reduction",                              FF_MPV_OFFSET(noise_reduction), AV_OPT_TYPE_INT, {.i64 = 0 }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS }, \
+{"mpeg_quant", "Use MPEG quantizers instead of H.263",              FF_MPV_OFFSET(mpeg_quant), AV_OPT_TYPE_INT, {.i64 = 0 }, 0, 1, FF_MPV_OPT_FLAGS }, \
 
 extern const AVOption ff_mpv_generic_options[];
 

libavcodec/mpegvideo_enc.c

@@ -313,7 +313,6 @@ av_cold int ff_mpv_encode_init(AVCodecContext *avctx)
     s->codec_id     = avctx->codec->id;
     s->strict_std_compliance = avctx->strict_std_compliance;
     s->quarter_sample     = (avctx->flags & AV_CODEC_FLAG_QPEL) != 0;
-    s->mpeg_quant         = avctx->mpeg_quant;
     s->rtp_mode           = !!avctx->rtp_payload_size;
     s->intra_dc_precision = avctx->intra_dc_precision;
     s->user_specified_pts = AV_NOPTS_VALUE;
@@ -450,6 +449,13 @@ FF_ENABLE_DEPRECATION_WARNINGS
         return -1;
     }
 
+#if FF_API_PRIVATE_OPT
+    FF_DISABLE_DEPRECATION_WARNINGS
+    if (avctx->mpeg_quant)
+        s->mpeg_quant = avctx->mpeg_quant;
+    FF_ENABLE_DEPRECATION_WARNINGS
+#endif
+
     // FIXME mpeg2 uses that too
     if (s->mpeg_quant && s->codec_id != AV_CODEC_ID_MPEG4) {
         av_log(avctx, AV_LOG_ERROR,

libavcodec/options_table.h

@@ -170,7 +170,9 @@ static const AVOption avcodec_options[] = {
 {"explode", "abort decoding on minor error detection", 0, AV_OPT_TYPE_CONST, {.i64 = AV_EF_EXPLODE }, INT_MIN, INT_MAX, V|D, "err_detect"},
 {"has_b_frames", NULL, OFFSET(has_b_frames), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX},
 {"block_align", NULL, OFFSET(block_align), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX},
+#if FF_API_PRIVATE_OPT
 {"mpeg_quant", "use MPEG quantizers instead of H.263", OFFSET(mpeg_quant), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX, V|E},
+#endif
 #if FF_API_MPV_OPT
 {"qsquish", "deprecated, use encoder private options instead", OFFSET(rc_qsquish), AV_OPT_TYPE_FLOAT, {.dbl = DEFAULT }, 0, 99, V|E},
 {"rc_qmod_amp",  "deprecated, use encoder private options instead", OFFSET(rc_qmod_amp), AV_OPT_TYPE_FLOAT, {.dbl = DEFAULT }, -FLT_MAX, FLT_MAX, V|E},