Print a warning if vp6 is muxed into flv: The output is flipped.

Fixes ticket #4132.
10 years ago · 78093cf849
parent 600e38f563
commit 78093cf849
1 changed files with 3 additions and 0 deletions
--- a/libavformat/flvenc.c
+++ b/libavformat/flvenc.c
@ -355,6 +355,9 @@ static int flv_write_header(AVFormatContext *s)
                           "use vstrict=-1 / -strict -1 to use it anyway.\n");
                    return AVERROR(EINVAL);
                }
+            } else if (enc->codec_id == AV_CODEC_ID_VP6) {
+                av_log(s, AV_LOG_WARNING,
+                       "Muxing VP6 in flv will produce flipped video on playback.\n");
            }
            break;
        case AVMEDIA_TYPE_AUDIO: