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avformat/oggparsevorbis: use the base64 decode size macro

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Allocate the memory needed for the decoded data rather than the
encoded data.

Signed-off-by: James Almer <jamrial@gmail.com>
This commit is contained in:
James Almer 2016-06-16 19:10:42 -03:00
parent 6031e5d1af
commit 8b5b756c4d
1 changed files with 3 additions and 3 deletions
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6
libavformat/oggparsevorbis.c
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@ -152,8 +152,8 @@ int ff_vorbis_comment(AVFormatContext *as, AVDictionary **m,
* recommended way of embedding cover art within VorbisComments." * recommended way of embedding cover art within VorbisComments."
*/ */
if (!strcmp(tt, "METADATA_BLOCK_PICTURE") && parse_picture) { if (!strcmp(tt, "METADATA_BLOCK_PICTURE") && parse_picture) {
int ret; int ret, len = AV_BASE64_DECODE_SIZE(vl);
char *pict = av_malloc(vl); char *pict = av_malloc(len);
if (!pict) { if (!pict) {
av_log(as, AV_LOG_WARNING, "out-of-memory error. Skipping cover art block.\n"); av_log(as, AV_LOG_WARNING, "out-of-memory error. Skipping cover art block.\n");
@ -161,7 +161,7 @@ int ff_vorbis_comment(AVFormatContext *as, AVDictionary **m,
av_freep(&ct); av_freep(&ct);
continue; continue;
} }
if ((ret = av_base64_decode(pict, ct, vl)) > 0) if ((ret = av_base64_decode(pict, ct, len)) > 0)
ret = ff_flac_parse_picture(as, pict, ret); ret = ff_flac_parse_picture(as, pict, ret);
av_freep(&tt); av_freep(&tt);
av_freep(&ct); av_freep(&ct);