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libmp3lame: add comments about CBR/VBR modes

This commit is contained in:
Timothy Gu 2013-10-23 20:57:36 -07:00 committed by Vittorio Giovara
parent 729d821fd8
commit 292dbe5e8a
1 changed files with 2 additions and 2 deletions
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4
libavcodec/libmp3lame.c
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@ -110,11 +110,11 @@ static av_cold int mp3lame_encode_init(AVCodecContext *avctx)
lame_set_quality(s->gfp, avctx->compression_level);
/* rate control */
if (avctx->flags & CODEC_FLAG_QSCALE) {
if (avctx->flags & CODEC_FLAG_QSCALE) { // VBR
lame_set_VBR(s->gfp, vbr_default);
lame_set_VBR_quality(s->gfp, avctx->global_quality / (float)FF_QP2LAMBDA);
} else {
if (avctx->bit_rate)
if (avctx->bit_rate) // CBR
lame_set_brate(s->gfp, avctx->bit_rate / 1000);
}