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-rw-r--r--libavformat/nutenc.c11
1 files changed, 9 insertions, 2 deletions
diff --git a/libavformat/nutenc.c b/libavformat/nutenc.c
index be6579dadb..7b69ff3099 100644
--- a/libavformat/nutenc.c
+++ b/libavformat/nutenc.c
@@ -190,9 +190,16 @@ static void build_frame_code(AVFormatContext *s)
key_frame = intra_only;
if (is_audio) {
- int frame_bytes = codec->frame_size * (int64_t)codec->bit_rate /
- (8 * codec->sample_rate);
+ int frame_bytes;
int pts;
+
+ if (codec->block_align > 0) {
+ frame_bytes = codec->block_align;
+ } else {
+ int frame_size = av_get_audio_frame_duration(codec, 0);
+ frame_bytes = frame_size * (int64_t)codec->bit_rate / (8 * codec->sample_rate);
+ }
+
for (pts = 0; pts < 2; pts++)
for (pred = 0; pred < 2; pred++) {
FrameCode *ft = &nut->frame_code[start2];