Module: libav Branch: release/0.8 Commit: 6a073aa7a734d4fbad77071e9f8ee0fe75a17fae
Author: Justin Ruggles <[email protected]> Committer: Reinhard Tartler <[email protected]> Date: Fri Mar 2 16:27:57 2012 -0500 wmaenc: limit allowed sample rate to 48kHz ff_wma_init() allows up to 50kHz, but this generates an exponent band size table that requires 65 bands. The code assumes 25 bands in many places, and using sample rates higher than 48kHz will lead to buffer overwrites. CC:[email protected] (cherry picked from commit 1ec075cfecac01f9a289965db06f76365b0b1737) Signed-off-by: Reinhard Tartler <[email protected]> --- libavcodec/wmaenc.c | 6 ++++++ 1 files changed, 6 insertions(+), 0 deletions(-) diff --git a/libavcodec/wmaenc.c b/libavcodec/wmaenc.c index bc17f5b..5135b98 100644 --- a/libavcodec/wmaenc.c +++ b/libavcodec/wmaenc.c @@ -39,6 +39,12 @@ static int encode_init(AVCodecContext * avctx){ return AVERROR(EINVAL); } + if (avctx->sample_rate > 48000) { + av_log(avctx, AV_LOG_ERROR, "sample rate is too high: %d > 48kHz", + avctx->sample_rate); + return AVERROR(EINVAL); + } + if(avctx->bit_rate < 24*1000) { av_log(avctx, AV_LOG_ERROR, "bitrate too low: got %i, need 24000 or higher\n", avctx->bit_rate); _______________________________________________ libav-commits mailing list [email protected] https://lists.libav.org/mailman/listinfo/libav-commits
