lavc: Move rtp_payload_size to codec private options

This option is only used by mpegvideoenc and openh264.
It is a very codec-specific option, so deprecate the global variant.

The openh264 option is dropped altogether since it is just a fallback
for -max_nal_size anyway.
Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>

libavcodec/avcodec.h

@@ -2418,12 +2418,16 @@ typedef struct AVCodecContext {
     void (*rtp_callback)(struct AVCodecContext *avctx, void *data, int size, int mb_nb);
 #endif
 
+#if FF_API_PRIVATE_OPT
+    /** @deprecated use encoder private options instead */
+    attribute_deprecated
     int rtp_payload_size;   /* The size of the RTP payload: the coder will  */
                             /* do its best to deliver a chunk with size     */
                             /* below rtp_payload_size, the chunk will start */
                             /* with a start code on some codecs like H.263. */
                             /* This doesn't take account of any particular  */
                             /* headers inside the transmitted RTP payload.  */
+#endif
 
 #if FF_API_STAT_BITS
     /* statistics, used for 2-pass encoding */

libavcodec/libopenh264enc.c

@@ -203,14 +203,9 @@ FF_ENABLE_DEPRECATION_WARNINGS
             param.uiMaxNalSize = s->max_nal_size;
             param.sSpatialLayers[0].sSliceCfg.sSliceArgument.uiSliceSizeConstraint = s->max_nal_size;
         } else {
-            if (avctx->rtp_payload_size) {
-                av_log(avctx,AV_LOG_DEBUG,"Using RTP Payload size for uiMaxNalSize");
-                param.uiMaxNalSize = avctx->rtp_payload_size;
-                param.sSpatialLayers[0].sSliceCfg.sSliceArgument.uiSliceSizeConstraint = avctx->rtp_payload_size;
-            } else {
-                av_log(avctx,AV_LOG_ERROR,"Invalid -max_nal_size, specify a valid max_nal_size to use -slice_mode dyn\n");
-                goto fail;
-            }
+            av_log(avctx, AV_LOG_ERROR, "Invalid -max_nal_size, "
+                   "specify a valid max_nal_size to use -slice_mode dyn\n");
+            goto fail;
         }
     }
 

libavcodec/mpegvideo.h

@@ -465,6 +465,7 @@ typedef struct MpegEncContext {
 
     /* RTP specific */
     int rtp_mode;
+    int rtp_payload_size;
 
     uint8_t *ptr_lastgob;
     int16_t (*pblocks[12])[64];
@@ -613,6 +614,7 @@ FF_MPV_OPT_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 }, \
+{"ps", "RTP payload size in bytes",                             FF_MPV_OFFSET(rtp_payload_size), AV_OPT_TYPE_INT, {.i64 = 0 }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS }, \
 
 extern const AVOption ff_mpv_generic_options[];
 

libavcodec/mpegvideo_enc.c

@@ -294,6 +294,13 @@ av_cold int ff_mpv_encode_init(AVCodecContext *avctx)
         break;
     }
 
+#if FF_API_PRIVATE_OPT
+FF_DISABLE_DEPRECATION_WARNINGS
+    if (avctx->rtp_payload_size)
+        s->rtp_payload_size = avctx->rtp_payload_size;
+FF_ENABLE_DEPRECATION_WARNINGS
+#endif
+
     s->bit_rate = avctx->bit_rate;
     s->width    = avctx->width;
     s->height   = avctx->height;
@@ -313,7 +320,7 @@ 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->rtp_mode           = !!avctx->rtp_payload_size;
+    s->rtp_mode           = !!s->rtp_payload_size;
     s->intra_dc_precision = avctx->intra_dc_precision;
     s->user_specified_pts = AV_NOPTS_VALUE;
 
@@ -2766,7 +2773,9 @@ static int encode_thread(AVCodecContext *c, void *arg){
 
                 current_packet_size= ((put_bits_count(&s->pb)+7)>>3) - (s->ptr_lastgob - s->pb.buf);
 
-                is_gob_start= s->avctx->rtp_payload_size && current_packet_size >= s->avctx->rtp_payload_size && mb_y + mb_x>0;
+                is_gob_start = s->rtp_payload_size &&
+                               current_packet_size >= s->rtp_payload_size &&
+                               mb_y + mb_x > 0;
 
                 if(s->start_mb_y == mb_y && mb_y > 0 && mb_x==0) is_gob_start=1;
 

libavcodec/options_table.h

@@ -121,8 +121,8 @@ static const AVOption avcodec_options[] = {
 #endif
 #if FF_API_PRIVATE_OPT
 {"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},
-#endif
 {"ps", "RTP payload size in bytes", OFFSET(rtp_payload_size), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX, V|E},
+#endif
 #if FF_API_STAT_BITS
 {"mv_bits", NULL, OFFSET(mv_bits), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX},
 {"header_bits", NULL, OFFSET(header_bits), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX},