Use av_log_ask_for_sample() to request samples from users.

libavcodec/atrac3.c

@@ -186,7 +186,7 @@ static int decode_bytes(const uint8_t* inbuffer, uint8_t* out, int bytes){
         obuf[i] = c ^ buf[i];
 
     if (off)
-        av_log(NULL,AV_LOG_DEBUG,"Offset of %d not handled, post sample on ffmpeg-dev.\n",off);
+        av_log_ask_for_sample(NULL, "Offset of %d not handled.\n", off);
 
     return off;
 }

libavcodec/cook.c

@@ -1268,7 +1268,9 @@ static av_cold int cook_decode_init(AVCodecContext *avctx)
     /* Try to catch some obviously faulty streams, othervise it might be exploitable */
     if ((q->samples_per_channel == 256) || (q->samples_per_channel == 512) || (q->samples_per_channel == 1024)) {
     } else {
-        av_log(avctx,AV_LOG_ERROR,"unknown amount of samples_per_channel = %d, report sample!\n",q->samples_per_channel);
+        av_log_ask_for_sample(avctx,
+                              "unknown amount of samples_per_channel = %d\n",
+                              q->samples_per_channel);
         return -1;
     }
 

libavcodec/loco.c

@@ -248,7 +248,7 @@ static av_cold int decode_init(AVCodecContext *avctx){
         break;
     default:
         l->lossy = AV_RL32(avctx->extradata + 8);
-        av_log(avctx, AV_LOG_INFO, "This is LOCO codec version %i, please upload file for study\n", version);
+        av_log_ask_for_sample(avctx, "This is LOCO codec version %i.\n", version);
     }
 
     l->mode = AV_RL32(avctx->extradata + 4);

libavcodec/wnv1.c

@@ -96,11 +96,13 @@ static int decode_frame(AVCodecContext *avctx,
     else {
         l->shift = 8 - (buf[2] >> 4);
         if (l->shift > 4) {
-            av_log(avctx, AV_LOG_ERROR, "Unknown WNV1 frame header value %i, please upload file for study\n", buf[2] >> 4);
+            av_log_ask_for_sample(avctx, "Unknown WNV1 frame header value %i\n",
+                                  buf[2] >> 4);
             l->shift = 4;
         }
         if (l->shift < 1) {
-            av_log(avctx, AV_LOG_ERROR, "Unknown WNV1 frame header value %i, please upload file for study\n", buf[2] >> 4);
+            av_log_ask_for_sample(avctx, "Unknown WNV1 frame header value %i\n",
+                                  buf[2] >> 4);
             l->shift = 1;
         }
     }

libavformat/oma.c

@@ -107,7 +107,8 @@ static int oma_read_header(AVFormatContext *s,
         case OMA_CODECID_ATRAC3:
             samplerate = srate_tab[(codec_params >> 13) & 7]*100;
             if (samplerate != 44100)
-                av_log(s, AV_LOG_ERROR, "Unsupported sample rate, send sample file to developers: %d\n", samplerate);
+                av_log_ask_for_sample(s, "Unsupported sample rate: %d\n",
+                                      samplerate);
 
             framesize = (codec_params & 0x3FF) * 8;
             jsflag = (codec_params >> 17) & 1; /* get stereo coding mode, 1 for joint-stereo */