From 4e583eda5f5c334fe60d5628c805c3d197f35bc2 Mon Sep 17 00:00:00 2001 From: Paul B Mahol Date: Sun, 8 Nov 2015 12:27:42 +0100 Subject: [PATCH] avformat/wavdec: allow data chunk to be before fmt/xma2 chunk Signed-off-by: Paul B Mahol --- libavformat/wavdec.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/libavformat/wavdec.c b/libavformat/wavdec.c index 4190fc6093..d95596f6ed 100644 --- a/libavformat/wavdec.c +++ b/libavformat/wavdec.c @@ -379,7 +379,7 @@ static int wav_read_header(AVFormatContext *s) got_xma2 = 1; break; case MKTAG('d', 'a', 't', 'a'): - if (!got_fmt && !got_xma2) { + if (!pb->seekable && !got_fmt && !got_xma2) { av_log(s, AV_LOG_ERROR, "found no 'fmt ' tag before the 'data' tag\n"); return AVERROR_INVALIDDATA; @@ -474,6 +474,11 @@ static int wav_read_header(AVFormatContext *s) } break_loop: + if (!got_fmt && !got_xma2) { + av_log(s, AV_LOG_ERROR, "no 'fmt ' or 'XMA2' tag found\n"); + return AVERROR_INVALIDDATA; + } + if (data_ofs < 0) { av_log(s, AV_LOG_ERROR, "no 'data' tag found\n"); return AVERROR_INVALIDDATA;