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Merge commit 'b18346817d57c96cc47811cf78b26653e96bd304' 

* commit 'b18346817d57c96cc47811cf78b26653e96bd304':
  flac: fix realloc loop with invalid flac files

Merged-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2015-04-20 21:52:18 +02:00
parent 5a14fca9aa b18346817d
commit a5379d6e68
1 changed files with 9 additions and 0 deletions
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9
libavcodec/flac_parser.c
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@ -615,6 +615,15 @@ static int flac_parse(AVCodecParserContext *s, AVCodecContext *avctx,
nb_desired * FLAC_AVG_FRAME_SIZE);
}
if (!av_fifo_space(fpc->fifo_buf) &&
av_fifo_size(fpc->fifo_buf) / FLAC_AVG_FRAME_SIZE >
fpc->nb_headers_buffered * 10) {
/* There is less than one valid flac header buffered for 10 headers
* buffered. Therefore the fifo is most likely filled with invalid
* data and the input is not a flac file. */
goto handle_error;
}
/* Fill the buffer. */
if ( av_fifo_space(fpc->fifo_buf) < read_end - read_start
&& av_fifo_realloc2(fpc->fifo_buf, (read_end - read_start) + 2*av_fifo_size(fpc->fifo_buf)) < 0) {