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avformat/mlvdec: process ff_get_wav_header return value 

Fixes CID1206640.

Signed-off-by: Peter Ross <pross@xvid.org>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Peter Ross 2014-04-27 12:42:04 +10:00 committed by Michael Niedermayer
parent c9cfd45838
commit bdab0c2d76
1 changed files with 17 additions and 5 deletions
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22
libavformat/mlvdec.c
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@ -123,10 +123,11 @@ static void read_uint64(AVFormatContext *avctx, AVIOContext *pb, const char *tag
av_dict_set(&avctx->metadata, tag, value, 0);
}
static void scan_file(AVFormatContext *avctx, AVStream *vst, AVStream *ast, int file)
static int scan_file(AVFormatContext *avctx, AVStream *vst, AVStream *ast, int file)
{
MlvContext *mlv = avctx->priv_data;
AVIOContext *pb = mlv->pb[file];
int ret;
while (!url_feof(pb)) {
int type;
unsigned int size;
@ -151,7 +152,9 @@ static void scan_file(AVFormatContext *avctx, AVStream *vst, AVStream *ast, int
vst->codec->codec_tag = MKTAG('B', 'I', 'T', 16);
size -= 164;
} else if (ast && type == MKTAG('W', 'A', 'V', 'I') && size >= 16) {
ff_get_wav_header(pb, ast->codec, 16);
ret = ff_get_wav_header(pb, ast->codec, 16);
if (ret < 0)
return ret;
size -= 16;
} else if (type == MKTAG('I','N','F','O')) {
if (size > 0)
@ -240,6 +243,7 @@ static void scan_file(AVFormatContext *avctx, AVStream *vst, AVStream *ast, int
}
avio_skip(pb, size);
}
return 0;
}
static int read_header(AVFormatContext *avctx)
@ -247,7 +251,7 @@ static int read_header(AVFormatContext *avctx)
MlvContext *mlv = avctx->priv_data;
AVIOContext *pb = avctx->pb;
AVStream *vst = NULL, *ast = NULL;
int size;
int size, ret;
uint64_t guid;
char guidstr[32];
@ -332,7 +336,9 @@ static int read_header(AVFormatContext *avctx)
/* scan primary file */
mlv->pb[100] = avctx->pb;
scan_file(avctx, vst, ast, 100);
ret = scan_file(avctx, vst, ast, 100);
if (ret < 0)
return ret;
/* scan secondary files */
if (strlen(avctx->filename) > 2) {
@ -351,7 +357,13 @@ static int read_header(AVFormatContext *avctx)
continue;
}
av_log(avctx, AV_LOG_INFO, "scanning %s\n", filename);
scan_file(avctx, vst, ast, i);
ret = scan_file(avctx, vst, ast, i);
if (ret < 0) {
av_log(avctx, AV_LOG_WARNING, "ignoring %s; %s\n", filename, av_err2str(ret));
avio_close(mlv->pb[i]);
mlv->pb[i] = NULL;
continue;
}
}
av_free(filename);
}