Module: libav Branch: master Commit: c2b8dea1828f35c808adcf12615893d5c740bc0a
Author: Justin Ruggles <[email protected]> Committer: Justin Ruggles <[email protected]> Date: Fri Mar 2 16:10:00 2012 -0500 wmaenc: limit block_align to MAX_CODED_SUPERFRAME_SIZE This is near the theoretical limit for wma frame size and is the most that our decoder can handle. Allowing higher bit rates will just end up padding each frame with empty bytes. Fixes invalid writes for avconv when using very high bit rates. CC:[email protected] --- libavcodec/wmaenc.c | 8 ++++++-- 1 files changed, 6 insertions(+), 2 deletions(-) diff --git a/libavcodec/wmaenc.c b/libavcodec/wmaenc.c index c762a72..e24a3f4 100644 --- a/libavcodec/wmaenc.c +++ b/libavcodec/wmaenc.c @@ -71,8 +71,12 @@ static int encode_init(AVCodecContext * avctx){ for(i = 0; i < s->nb_block_sizes; i++) ff_mdct_init(&s->mdct_ctx[i], s->frame_len_bits - i + 1, 0, 1.0); - avctx->block_align= - s->block_align= avctx->bit_rate*(int64_t)s->frame_len / (avctx->sample_rate*8); + s->block_align = avctx->bit_rate * (int64_t)s->frame_len / + (avctx->sample_rate * 8); + s->block_align = FFMIN(s->block_align, MAX_CODED_SUPERFRAME_SIZE); + avctx->block_align = s->block_align; + avctx->bit_rate = avctx->block_align * 8LL * avctx->sample_rate / + s->frame_len; //av_log(NULL, AV_LOG_ERROR, "%d %d %d %d\n", s->block_align, avctx->bit_rate, s->frame_len, avctx->sample_rate); avctx->frame_size= s->frame_len; _______________________________________________ libav-commits mailing list [email protected] https://lists.libav.org/mailman/listinfo/libav-commits
