mpeg2enc: add 'non_linear_quant' private option

Deprecate CODEC_FLAG2_NON_LINEAR_QUANT

libavcodec/avcodec.h

@@ -625,7 +625,9 @@ typedef struct RcOverride{
 #endif
 #define CODEC_FLAG2_SKIP_RD       0x00004000 ///< RD optimal MB level residual skipping
 #define CODEC_FLAG2_CHUNKS        0x00008000 ///< Input bitstream might be truncated at a packet boundaries instead of only at frame boundaries.
+#if FF_API_MPEGVIDEO_GLOBAL_OPTS
 #define CODEC_FLAG2_NON_LINEAR_QUANT 0x00010000 ///< Use MPEG-2 nonlinear quantizer.
+#endif
 #define CODEC_FLAG2_BIT_RESERVOIR 0x00020000 ///< Use a bit reservoir when encoding if possible
 #define CODEC_FLAG2_MBTREE        0x00040000 ///< Use macroblock tree ratecontrol (x264 only)
 #define CODEC_FLAG2_PSY           0x00080000 ///< Use psycho visual optimizations.

libavcodec/mpeg12enc.c

@@ -934,9 +934,18 @@ static void mpeg1_encode_block(MpegEncContext *s,
 
 #define OFFSET(x) offsetof(MpegEncContext, x)
 #define VE AV_OPT_FLAG_ENCODING_PARAM | AV_OPT_FLAG_VIDEO_PARAM
-static const AVOption options[] = {
-    { "intra_vlc",           "Use MPEG-2 intra VLC table.",       OFFSET(intra_vlc_format),    FF_OPT_TYPE_INT, { 0 }, 0, 1, VE },
+#define COMMON_OPTS\
+    { "intra_vlc",           "Use MPEG-2 intra VLC table.",       OFFSET(intra_vlc_format),    FF_OPT_TYPE_INT, { 0 }, 0, 1, VE },\
     { "drop_frame_timecode", "Timecode is in drop frame format.", OFFSET(drop_frame_timecode), FF_OPT_TYPE_INT, { 0 }, 0, 1, VE},
+
+static const AVOption mpeg1_options[] = {
+    COMMON_OPTS
+    { NULL },
+};
+
+static const AVOption mpeg2_options[] = {
+    COMMON_OPTS
+    { "non_linear_quant",    "Use nonlinear quantizer.",          OFFSET(q_scale_type),         FF_OPT_TYPE_INT, { 0 }, 0, 1, VE },
     { NULL },
 };
 
@@ -944,7 +953,7 @@ static const AVOption options[] = {
 static const AVClass mpeg## x ##_class = {\
     .class_name   = "mpeg" #x "video encoder",\
     .item_name    = av_default_item_name,\
-    .option       = options,\
+    .option       = mpeg## x ##_options,\
     .version      = LIBAVUTIL_VERSION_INT,\
 };
 

libavcodec/mpegvideo_enc.c

@@ -338,8 +338,8 @@ av_cold int MPV_encode_init(AVCodecContext *avctx)
     s->alternate_scan= !!(s->flags & CODEC_FLAG_ALT_SCAN);
 #if FF_API_MPEGVIDEO_GLOBAL_OPTS
     s->intra_vlc_format= !!(s->flags2 & CODEC_FLAG2_INTRA_VLC);
-#endif
     s->q_scale_type= !!(s->flags2 & CODEC_FLAG2_NON_LINEAR_QUANT);
+#endif
 
     if(avctx->rc_max_rate && !avctx->rc_buffer_size){
         av_log(avctx, AV_LOG_ERROR, "a vbv buffer size is needed, for encoding with a maximum bitrate\n");
@@ -463,10 +463,12 @@ av_cold int MPV_encode_init(AVCodecContext *avctx)
     }
 
     if(s->q_scale_type == 1){
+#if FF_API_MPEGVIDEO_GLOBAL_OPTS
         if(s->codec_id != CODEC_ID_MPEG2VIDEO){
             av_log(avctx, AV_LOG_ERROR, "non linear quant is only available for mpeg2\n");
             return -1;
         }
+#endif
         if(avctx->qmax > 12){
             av_log(avctx, AV_LOG_ERROR, "non linear quant only supports qmax <= 12 currently\n");
             return -1;

libavcodec/options.c

@@ -423,8 +423,8 @@ static const AVOption options[]={
 {"timecode_frame_start", "GOP timecode frame start number, in non drop frame format", OFFSET(timecode_frame_start), FF_OPT_TYPE_INT64, {.dbl = 0 }, 0, INT64_MAX, V|E},
 #if FF_API_MPEGVIDEO_GLOBAL_OPTS
 {"drop_frame_timecode", NULL, 0, FF_OPT_TYPE_CONST, {.dbl = CODEC_FLAG2_DROP_FRAME_TIMECODE }, INT_MIN, INT_MAX, V|E, "flags2"},
-#endif
 {"non_linear_q", "use non linear quantizer", 0, FF_OPT_TYPE_CONST, {.dbl = CODEC_FLAG2_NON_LINEAR_QUANT }, INT_MIN, INT_MAX, V|E, "flags2"},
+#endif
 #if FF_API_REQUEST_CHANNELS
 {"request_channels", "set desired number of audio channels", OFFSET(request_channels), FF_OPT_TYPE_INT, {.dbl = DEFAULT }, 0, INT_MAX, A|D},
 #endif