From 292dbe5e8a95d38c1324b0432fbaca67f8fe4b73 Mon Sep 17 00:00:00 2001
From: Timothy Gu <timothygu99@gmail.com>
Date: Wed, 23 Oct 2013 20:57:36 -0700
Subject: libmp3lame: add comments about CBR/VBR modes

---
 libavcodec/libmp3lame.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(limited to 'libavcodec/libmp3lame.c')

diff --git a/libavcodec/libmp3lame.c b/libavcodec/libmp3lame.c
index 6da68ad3b7..fbb40321b9 100644
--- a/libavcodec/libmp3lame.c
+++ b/libavcodec/libmp3lame.c
@@ -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);
     }
 
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