[FFmpeg-cvslog] Do not limit blocksize when reading PCM from aiff.

[Carl Eugen Hoyos]

ffmpeg | branch: release/2.2 | Carl Eugen Hoyos <cehoyos at ag.or.at> | Tue Jun  3 00:54:46 2014 +0200| [d1b62a9a07719480f6d306420f1abac3fc07cfa2] | committer: Carl Eugen Hoyos

Do not limit blocksize when reading PCM from aiff.

Fixes ticket #3695.
(cherry picked from commit 763e714442e07f6430b003c8a9f4b62deaa7b3a5)

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=d1b62a9a07719480f6d306420f1abac3fc07cfa2
---

 libavformat/aiffdec.c |   10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/libavformat/aiffdec.c b/libavformat/aiffdec.c
index 81bcc64..7accec4 100644
--- a/libavformat/aiffdec.c
+++ b/libavformat/aiffdec.c
@@ -344,10 +344,16 @@ static int aiff_read_packet(AVFormatContext *s,
         return AVERROR_EOF;
 
     /* Now for that packet */
-    if (st->codec->block_align >= 17) // GSM, QCLP, IMA4
+    switch (st->codec->codec_id) {
+    case AV_CODEC_ID_ADPCM_IMA_QT:
+    case AV_CODEC_ID_GSM:
+    case AV_CODEC_ID_QDM2:
+    case AV_CODEC_ID_QCELP:
         size = st->codec->block_align;
-    else
+        break;
+    default:
         size = (MAX_SIZE / st->codec->block_align) * st->codec->block_align;
+    }
     size = FFMIN(max_size, size);
     res = av_get_packet(s->pb, pkt, size);
     if (res < 0)