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avformat/riffenc: Use size_t for strlen in ff_riff_write_info_tag()

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Also dont generated corrupted output for larger than 4gb strings

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2015-05-12 13:36:54 +02:00
parent 94e293a83c
commit c3671e1d57
1 changed files with 2 additions and 2 deletions
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4
libavformat/riffenc.c
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@ -269,8 +269,8 @@ void ff_parse_specific_params(AVStream *st, int *au_rate,
void ff_riff_write_info_tag(AVIOContext *pb, const char *tag, const char *str) void ff_riff_write_info_tag(AVIOContext *pb, const char *tag, const char *str)
{ {
int len = strlen(str); size_t len = strlen(str);
if (len > 0) { if (len > 0 && len < UINT32_MAX) {
len++; len++;
ffio_wfourcc(pb, tag); ffio_wfourcc(pb, tag);
avio_wl32(pb, len); avio_wl32(pb, len);