Add informative messages to av_log_ask_for_sample calls lacking them

3 files changed, 4 insertions, 7 deletions

diff --git a/libavformat/anm.c b/libavformat/anm.c
index dc24e78941..064b15739f 100644
--- a/libavformat/anm.c
+++ b/libavformat/anm.c
@@ -163,7 +163,7 @@ static int read_header(AVFormatContext *s)
     return 0;
 
 invalid:
-    av_log_ask_for_sample(s, NULL);
+    av_log_ask_for_sample(s, "Invalid header element encountered.\n");
     return AVERROR_PATCHWELCOME;
 }
 
diff --git a/libavformat/spdifenc.c b/libavformat/spdifenc.c
index cf421a7358..fbc757b797 100644
--- a/libavformat/spdifenc.c
+++ b/libavformat/spdifenc.c
@@ -412,8 +412,7 @@ static int spdif_header_truehd(AVFormatContext *s, AVPacket *pkt)
     if (pkt->size > TRUEHD_FRAME_OFFSET - mat_code_length) {
         /* if such frames exist, we'd need some more complex logic to
          * distribute the TrueHD frames in the MAT frame */
-        av_log(s, AV_LOG_ERROR, "TrueHD frame too big, %d bytes\n", pkt->size);
-        av_log_ask_for_sample(s, NULL);
+        av_log_ask_for_sample(s, "TrueHD frame too big, %d bytes\n", pkt->size);
         return AVERROR_PATCHWELCOME;
     }
 
diff --git a/libavformat/xwma.c b/libavformat/xwma.c
index baabf5775e..13ce2bb9f9 100644
--- a/libavformat/xwma.c
+++ b/libavformat/xwma.c
@@ -85,9 +85,8 @@ static int xwma_read_header(AVFormatContext *s)
      * anyway.
      */
     if (st->codec->codec_id != AV_CODEC_ID_WMAV2) {
-        av_log(s, AV_LOG_WARNING, "unexpected codec (tag 0x04%x; id %d)\n",
+        av_log_ask_for_sample(s, "unexpected codec (tag 0x04%x; id %d)\n",
                               st->codec->codec_tag, st->codec->codec_id);
-        av_log_ask_for_sample(s, NULL);
     } else {
         /* In all xWMA files I have seen, there is no extradata. But the WMA
          * codecs require extradata, so we provide our own fake extradata.
@@ -101,9 +100,8 @@ static int xwma_read_header(AVFormatContext *s)
              * if it will work, but just go on and try it, after asking
              * the user for a sample.
              */
-            av_log(s, AV_LOG_WARNING, "unexpected extradata (%d bytes)\n",
+            av_log_ask_for_sample(s, "unexpected extradata (%d bytes)\n",
                                   st->codec->extradata_size);
-            av_log_ask_for_sample(s, NULL);
         } else {
             st->codec->extradata_size = 6;
             st->codec->extradata      = av_mallocz(6 + FF_INPUT_BUFFER_PADDING_SIZE);