From: Reimar Döffinger <Reimar.Doeffinger@gmx.de>
Date: Mon, 9 Apr 2012 16:31:50 +0000 (+0200)
Subject: latmenc: Document assumptions when copying the AAC header.
X-Git-Tag: android-x86-4.4-r1~12446
X-Git-Url: http://git.osdn.net/view?a=commitdiff_plain;h=eb24def4654a6e3d365d30fdf582ebb77c0b30db;p=android-x86%2Fexternal-ffmpeg.git

latmenc: Document assumptions when copying the AAC header.

Signed-off-by: Reimar Döffinger <Reimar.Doeffinger@gmx.de>
---

diff --git a/libavformat/latmenc.c b/libavformat/latmenc.c
index 3ee58e078c..2d804ff299 100644
--- a/libavformat/latmenc.c
+++ b/libavformat/latmenc.c
@@ -111,6 +111,8 @@ static void latm_write_frame_header(AVFormatContext *s, PutBitContext *bs)
             header_size = avctx->extradata_size-(ctx->off >> 3);
             avpriv_copy_bits(bs, &avctx->extradata[ctx->off >> 3], header_size);
         } else {
+            // + 3 assumes not scalable and dependsOnCoreCoder == 0,
+            // see decode_ga_specific_config in libavcodec/aacdec.c
             avpriv_copy_bits(bs, avctx->extradata, ctx->off + 3);
 
             if (!ctx->channel_conf) {