From e0130159809dc6753f630d321ddd1d82409ae351 Mon Sep 17 00:00:00 2001
From: Baptiste Coudurier <baptiste.coudurier@gmail.com>
Date: Mon, 25 Feb 2008 11:34:26 +0000
Subject: [PATCH] fix duration for ima4

Originally committed as revision 12197 to svn://svn.ffmpeg.org/ffmpeg/trunk
---
 libavformat/aiff.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/libavformat/aiff.c b/libavformat/aiff.c
index 1fcfd881b4..dede1d6fe4 100644
--- a/libavformat/aiff.c
+++ b/libavformat/aiff.c
@@ -131,6 +131,7 @@ static unsigned int get_aiff_header(ByteIOContext *pb, AVCodecContext *codec,
             break;
         case CODEC_ID_ADPCM_IMA_QT:
             codec->block_align = 34*codec->channels;
+            codec->frame_size = 64;
             break;
         default:
             break;
@@ -390,7 +391,8 @@ got_sound:
 
     av_set_pts_info(st, 64, 1, st->codec->sample_rate);
     st->start_time = 0;
-    st->duration = st->nb_frames;
+    st->duration = st->codec->frame_size ?
+        st->nb_frames * st->codec->frame_size : st->nb_frames;
 
     /* Position the stream at the first block */
     url_fseek(pb, offset, SEEK_SET);