diff options
| author | Michael Niedermayer <michael@niedermayer.cc> | 2018-04-30 22:20:28 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2018-05-05 16:52:34 +0200 |
| commit | 15a2e35e9e74bba5a27e39c26da5be2361f27945 (patch) | |
| tree | 2061edb4122ff5e08ef35850189f0f09f7f07738 /libavcodec/flac_parser.c | |
| parent | 0ef7a4519745967473f69fd8819af9d558132d4b (diff) | |
avcodec/flac_parser: Fix infinite loop
Fixes: crbug/827204
Reported-by: Frank Liberato <liberato@google.com>
Reviewed-by: Frank Liberato <liberato@google.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
Diffstat (limited to 'libavcodec/flac_parser.c')
| -rw-r--r-- | libavcodec/flac_parser.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/libavcodec/flac_parser.c b/libavcodec/flac_parser.c index 84da23f327..2721286464 100644 --- a/libavcodec/flac_parser.c +++ b/libavcodec/flac_parser.c @@ -686,12 +686,17 @@ static int flac_parse(AVCodecParserContext *s, AVCodecContext *avctx, } for (curr = fpc->headers; curr; curr = curr->next) { - if (curr->max_score > 0 && - (!fpc->best_header || curr->max_score > fpc->best_header->max_score)) { + if (!fpc->best_header || curr->max_score > fpc->best_header->max_score) { fpc->best_header = curr; } } + if (fpc->best_header && fpc->best_header->max_score <= 0) { + // Only accept a bad header if there is no other option to continue + if (!buf_size || !buf || read_end != buf || fpc->nb_headers_buffered < FLAC_MIN_HEADERS) + fpc->best_header = NULL; + } + if (fpc->best_header) { fpc->best_header_valid = 1; if (fpc->best_header->offset > 0) { |