@@ -670,7 +670,7 @@ static int decode_ga_specific_config(AACContext *ac, AVCodecContext *avctx,

     int tags = 0;

     if (get_bits1(gb)) { // frameLengthFlag

-        av_log_missing_feature(avctx, "960/120 MDCT window", 1);

+        avpriv_request_sample(avctx, "960/120 MDCT window");

         return AVERROR_PATCHWELCOME;

     }

@@ -1660,7 +1660,7 @@ static int decode_ics(AACContext *ac, SingleChannelElement *sce,

         if ((tns->present = get_bits1(gb)) && decode_tns(ac, tns, gb, ics))

             return -1;

         if (get_bits1(gb)) {

-            av_log_missing_feature(ac->avctx, "SSR", 1);

+            avpriv_request_sample(ac->avctx, "SSR");

             return AVERROR_PATCHWELCOME;

         }

     }

@@ -2620,8 +2620,8 @@ static int latm_decode_audio_specific_config(struct LATMContext *latmctx,

         asclen         = get_bits_left(gb);

     if (config_start_bit % 8) {

-        av_log_missing_feature(latmctx->aac_ctx.avctx,

-                               "Non-byte-aligned audio-specific config", 1);

+        avpriv_request_sample(latmctx->aac_ctx.avctx,

+                              "Non-byte-aligned audio-specific config");

         return AVERROR_PATCHWELCOME;

     }

     if (asclen <= 0)

@@ -2675,8 +2675,7 @@ static int read_stream_mux_config(struct LATMContext *latmctx,

         skip_bits(gb, 6);                       // numSubFrames

         // numPrograms

         if (get_bits(gb, 4)) {                  // numPrograms

-            av_log_missing_feature(latmctx->aac_ctx.avctx,

-                                   "Multiple programs", 1);

+            avpriv_request_sample(latmctx->aac_ctx.avctx, "Multiple programs");

             return AVERROR_PATCHWELCOME;

         }

@@ -2684,8 +2683,7 @@ static int read_stream_mux_config(struct LATMContext *latmctx,

         // for each layer (which there is only on in DVB)

         if (get_bits(gb, 3)) {                   // numLayer

-            av_log_missing_feature(latmctx->aac_ctx.avctx,

-                                   "Multiple layers", 1);

+            avpriv_request_sample(latmctx->aac_ctx.avctx, "Multiple layers");

             return AVERROR_PATCHWELCOME;

         }

@@ -927,7 +927,7 @@ static void read_sbr_extension(AACContext *ac, SpectralBandReplication *sbr,

         }

         break;

     default:

-        av_log_missing_feature(ac->avctx, "Reserved SBR extensions", 1);

+        avpriv_request_sample(ac->avctx, "Reserved SBR extensions");

         skip_bits_long(gb, *num_bits_left); // bs_fill_bits

         *num_bits_left = 0;

         break;

@@ -874,7 +874,7 @@ static int decode_audio_block(AC3DecodeContext *s, int blk)

             /* check for enhanced coupling */

             if (s->eac3 && get_bits1(gbc)) {

                 /* TODO: parse enhanced coupling strategy info */

-                av_log_missing_feature(s->avctx, "Enhanced coupling", 1);

+                avpriv_request_sample(s->avctx, "Enhanced coupling");

                 return AVERROR_PATCHWELCOME;

             }

@@ -957,7 +957,7 @@ static int amrnb_decode_frame(AVCodecContext *avctx, void *data,

         return AVERROR_INVALIDDATA;

     }

     if (p->cur_frame_mode == MODE_DTX) {

-        av_log_missing_feature(avctx, "dtx mode", 1);

+        avpriv_request_sample(avctx, "dtx mode");

         return AVERROR_PATCHWELCOME;

     }

@@ -1117,7 +1117,7 @@ static int amrwb_decode_frame(AVCodecContext *avctx, void *data,

         av_log(avctx, AV_LOG_ERROR, "Encountered a bad or corrupted frame\n");

     if (ctx->fr_cur_mode == MODE_SID) { /* Comfort noise frame */

-        av_log_missing_feature(avctx, "SID mode", 1);

+        avpriv_request_sample(avctx, "SID mode");

         return AVERROR_PATCHWELCOME;

     }

@@ -300,7 +300,7 @@ int ff_eac3_parse_header(AC3DecodeContext *s)

        application can select from. each independent stream can also contain

        dependent streams which are used to add or replace channels. */

     if (s->frame_type == EAC3_FRAME_TYPE_DEPENDENT) {

-        av_log_missing_feature(s->avctx, "Dependent substream decoding", 1);

+        avpriv_request_sample(s->avctx, "Dependent substream decoding");

         return AAC_AC3_PARSE_ERROR_FRAME_TYPE;

     } else if (s->frame_type == EAC3_FRAME_TYPE_RESERVED) {

         av_log(s->avctx, AV_LOG_ERROR, "Reserved frame type\n");

@@ -312,7 +312,7 @@ int ff_eac3_parse_header(AC3DecodeContext *s)

        associated to an independent stream have matching substream id's. */

     if (s->substreamid) {

         /* only decode substream with id=0. skip any additional substreams. */

-        av_log_missing_feature(s->avctx, "Additional substreams", 1);

+        avpriv_request_sample(s->avctx, "Additional substreams");

         return AAC_AC3_PARSE_ERROR_FRAME_TYPE;

     }

@@ -321,7 +321,7 @@ int ff_eac3_parse_header(AC3DecodeContext *s)

            rates in bit allocation.  The best assumption would be that it is

            handled like AC-3 DolbyNet, but we cannot be sure until we have a

            sample which utilizes this feature. */

-        av_log_missing_feature(s->avctx, "Reduced sampling rate", 1);

+        avpriv_request_sample(s->avctx, "Reduced sampling rate");

         return AVERROR_PATCHWELCOME;

     }

     skip_bits(gbc, 5); // skip bitstream id

@@ -593,7 +593,7 @@ int ff_eac3_parse_header(AC3DecodeContext *s)

            It is likely the offset of each block within the frame. */

         int block_start_bits = (s->num_blocks-1) * (4 + av_log2(s->frame_size-2));

         skip_bits_long(gbc, block_start_bits);

-        av_log_missing_feature(s->avctx, "Block start info", 1);

+        avpriv_request_sample(s->avctx, "Block start info");

     }

     /* syntax state initialization */

@@ -259,11 +259,11 @@ static int flashsv_decode_frame(AVCodecContext *avctx, void *data,

     if (s->ver == 2) {

         skip_bits(&gb, 6);

         if (get_bits1(&gb)) {

-            av_log_missing_feature(avctx, "iframe", 1);

+            avpriv_request_sample(avctx, "iframe");

             return AVERROR_PATCHWELCOME;

         }

         if (get_bits1(&gb)) {

-            av_log_missing_feature(avctx, "Custom palette", 1);

+            avpriv_request_sample(avctx, "Custom palette");

             return AVERROR_PATCHWELCOME;

         }

     }

@@ -394,7 +394,7 @@ static int flashsv_decode_frame(AVCodecContext *avctx, void *data,

                     int row = get_bits(&gb, 8);

                     av_log(avctx, AV_LOG_DEBUG, "%dx%d zlibprime_curr %dx%d\n", i, j, col, row);

                     size -= 2;

-                    av_log_missing_feature(avctx, "zlibprime_curr", 1);

+                    avpriv_request_sample(avctx, "zlibprime_curr");

                     return AVERROR_PATCHWELCOME;

                 }

                 if (!s->blocks && (s->zlibprime_curr || s->zlibprime_prev)) {

@@ -2884,8 +2884,8 @@ static int h264_set_parameter_from_sps(H264Context *h)

         h->avctx->has_b_frames = !h->low_delay;

     if (h->sps.bit_depth_luma != h->sps.bit_depth_chroma) {

-        av_log_missing_feature(h->avctx,

-            "Different bit depth between chroma and luma", 1);

+        avpriv_request_sample(h->avctx,

+                              "Different chroma and luma bit depth");

         return AVERROR_PATCHWELCOME;

     }

@@ -389,7 +389,7 @@ static int mimic_decode_frame(AVCodecContext *avctx, void *data,

             ctx->num_hblocks[i] =     width   >> (3 + !!i);

         }

     } else if (width != ctx->avctx->width || height != ctx->avctx->height) {

-        av_log_missing_feature(avctx, "resolution changing", 1);

+        avpriv_request_sample(avctx, "Resolution changing");

         return AVERROR_PATCHWELCOME;

     }

@@ -130,7 +130,7 @@ static av_cold int mpc8_decode_init(AVCodecContext * avctx)

     c->maxbands = get_bits(&gb, 5) + 1;

     channels = get_bits(&gb, 4) + 1;

     if (channels > 2) {

-        av_log_missing_feature(avctx, "Multichannel MPC SV8", 1);

+        avpriv_request_sample(avctx, "Multichannel MPC SV8");

         return AVERROR_PATCHWELCOME;

     }

     c->MSS = get_bits1(&gb);

@@ -459,7 +459,7 @@ static av_cold int rv10_decode_init(AVCodecContext *avctx)

         break;

     default:

         av_log(s->avctx, AV_LOG_ERROR, "unknown header %X\n", rv->sub_id);

-        av_log_missing_feature(avctx, "RV1/2 version", 1);

+        avpriv_request_sample(avctx, "RV1/2 version");

         return AVERROR_PATCHWELCOME;

     }

@@ -402,7 +402,7 @@ static void smc_decode_stream(SmcContext *s)

             break;

         case 0xF0:

-            av_log_missing_feature(s->avctx, "0xF0 opcode", 1);

+            avpriv_request_sample(s->avctx, "0xF0 opcode");

             break;

         }

     }

@@ -685,7 +685,7 @@ static int tak_decode_frame(AVCodecContext *avctx, void *data,

         return ret;

     if (s->ti.flags & TAK_FRAME_FLAG_HAS_METADATA) {

-        av_log_missing_feature(avctx, "frame metadata", 1);

+        avpriv_request_sample(avctx, "Frame metadata");

         return AVERROR_PATCHWELCOME;

     }

@@ -226,7 +226,7 @@ static inline int tm2_read_header(TM2Context *ctx, const uint8_t *buf)

     switch (magic) {

     case TM2_OLD_HEADER_MAGIC:

-        av_log_missing_feature(ctx->avctx, "TM2 old header", 1);

+        avpriv_request_sample(ctx->avctx, "Old TM2 header");

         return 0;

     case TM2_NEW_HEADER_MAGIC:

         return 0;

@@ -222,7 +222,7 @@ static av_cold int tta_decode_init(AVCodecContext * avctx)

             return -1;

         }

         if (s->format == FORMAT_ENCRYPTED) {

-            av_report_missing_feature(s->avctx, "Encrypted TTA");

+            avpriv_report_missing_feature(s->avctx, "Encrypted TTA");

             return AVERROR_PATCHWELCOME;

         }

         avctx->channels = s->channels = get_bits(&s->gb, 16);

@@ -337,7 +337,7 @@ static int decode_frame_header(VP8Context *s, const uint8_t *buf, int buf_size)

         buf_size -= 7;

         if (hscale || vscale)

-            av_log_missing_feature(s->avctx, "Upscaling", 1);

+            avpriv_request_sample(s->avctx, "Upscaling");

         s->update_golden = s->update_altref = VP56_FRAME_CURRENT;

         for (i = 0; i < 4; i++)

@@ -886,7 +886,7 @@ static int decode_subframe(WmallDecodeCtx *s)

         s->do_arith_coding    = get_bits1(&s->gb);

         if (s->do_arith_coding) {

-            av_log_missing_feature(s->avctx, "Arithmetic coding", 1);

+            avpriv_request_sample(s->avctx, "Arithmetic coding");

             return AVERROR_PATCHWELCOME;

         }

         s->do_ac_filter       = get_bits1(&s->gb);

@@ -1191,7 +1191,7 @@ static int decode_packet(AVCodecContext *avctx, void *data, int *got_frame_ptr,

         skip_bits(gb, 1);   // Skip seekable_frame_in_packet, currently ununused

         spliced_packet = get_bits1(gb);

         if (spliced_packet)

-            av_log_missing_feature(avctx, "Bitstream splicing", 1);

+            avpriv_request_sample(avctx, "Bitstream splicing");

         /* get number of bits that need to be added to the previous frame */

         num_bits_prev_frame = get_bits(gb, s->log2_frame_size);

@@ -314,7 +314,7 @@ static av_cold int decode_init(AVCodecContext *avctx)

     /** get frame len */

     bits = ff_wma_get_frame_len_bits(avctx->sample_rate, 3, s->decode_flags);

     if (bits > WMAPRO_BLOCK_MAX_BITS) {

-        av_log_missing_feature(avctx, "14-bits block sizes", 1);

+        avpriv_request_sample(avctx, "14-bit block sizes");

         return AVERROR_PATCHWELCOME;

     }

     s->samples_per_frame = 1 << bits;

@@ -1765,7 +1765,7 @@ static int synth_superframe(AVCodecContext *ctx, AVFrame *frame,

      * are really WMAPro-in-WMAVoice-superframes. I've never seen those in

      * the wild yet. */

     if (!get_bits1(gb)) {

-        av_log_missing_feature(ctx, "WMAPro-in-WMAVoice", 1);

+        avpriv_request_sample(ctx, "WMAPro-in-WMAVoice");

         return AVERROR_PATCHWELCOME;

     }