[SCM] libav/experimental: vbr requires version=1 and samplesize=0 per QT spec untested, but if this doesnt work the issue is likely somewhere else, as iam just chaning the random nonsense we do to what the spec says should be done

[siretart at users.alioth.debian.org]

The following commit has been merged in the experimental branch:
commit 9a39cd35b8a3e172d902b06d7dfbca9073ee1caa
Author: Michael Niedermayer <michaelni at gmx.at>
Date:   Thu Jul 6 12:17:01 2006 +0000

    vbr requires version=1 and samplesize=0 per QT spec
    untested, but if this doesnt work the issue is likely somewhere else, as iam just chaning the random nonsense we do to what the spec says should be done
    
    Originally committed as revision 5636 to svn://svn.ffmpeg.org/ffmpeg/trunk

diff --git a/libavformat/movenc.c b/libavformat/movenc.c
index dc18ccd..1709ffe 100644
--- a/libavformat/movenc.c
+++ b/libavformat/movenc.c
@@ -353,9 +353,11 @@ static const CodecTag codec_movaudio_tags[] = {
 static int mov_write_audio_tag(ByteIOContext *pb, MOVTrack* track)
 {
     offset_t pos = url_ftell(pb);
+    int vbr=  track->enc->codec_id == CODEC_ID_AAC ||
+              track->enc->codec_id == CODEC_ID_MP3 ||
+              track->enc->codec_id == CODEC_ID_AMR_NB;
     int version = track->mode == MODE_MOV &&
-        (track->enc->codec_id == CODEC_ID_AAC ||
-         track->enc->codec_id == CODEC_ID_MP3 ||
+        (vbr ||
          track->enc->codec_id == CODEC_ID_PCM_S32LE ||
          track->enc->codec_id == CODEC_ID_PCM_S24LE);
 
@@ -375,9 +377,7 @@ static int mov_write_audio_tag(ByteIOContext *pb, MOVTrack* track)
                  to be a good way to get number of bits of audio */
     put_be16(pb, 0x10); /* Reserved */
 
-    if(track->enc->codec_id == CODEC_ID_AAC ||
-       track->enc->codec_id == CODEC_ID_MP3 ||
-       track->enc->codec_id == CODEC_ID_AMR_NB) {
+    if(vbr) {
         put_be16(pb, 0xfffe); /* compression ID (vbr)*/
     } else {
         put_be16(pb, 0); /* compression ID (= 0) */
@@ -387,13 +387,10 @@ static int mov_write_audio_tag(ByteIOContext *pb, MOVTrack* track)
     put_be16(pb, 0); /* Reserved */
 
     if(version == 1) { /* SoundDescription V1 extended info */
-        /* Parameters tested on quicktime 6.5, 7 */
-        if (track->enc->codec_id == CODEC_ID_MP3)
-            track->sampleSize = 666;
-        if (track->enc->codec_id == CODEC_ID_AAC)
-            track->sampleSize = 2;
+        if (vbr)
+            track->sampleSize = 0;
         put_be32(pb, track->enc->frame_size); /* Samples per packet */
-        put_be32(pb, track->sampleSize / 2); /* Bytes per packet */
+        put_be32(pb, track->sampleSize / track->enc->channels); /* Bytes per packet */
         put_be32(pb, track->sampleSize); /* Bytes per frame */
         put_be32(pb, 2); /* Bytes per sample */
     }

-- 
Libav/FFmpeg packaging