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-rw-r--r--libavformat/avidec.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/libavformat/avidec.c b/libavformat/avidec.c
index ec24a6e8ff..cdf8307298 100644
--- a/libavformat/avidec.c
+++ b/libavformat/avidec.c
@@ -593,8 +593,10 @@ static int avi_read_header(AVFormatContext *s, AVFormatParameters *ap)
st->codec->codec_id = CODEC_ID_XAN_DPCM;
st->codec->codec_tag = 0;
}
- if (amv_file_format)
+ if (amv_file_format){
st->codec->codec_id = CODEC_ID_ADPCM_IMA_AMV;
+ ast->dshow_block_align = 0;
+ }
break;
default:
st->codec->codec_type = AVMEDIA_TYPE_DATA;