---
libavcodec/utils.c | 3 ++-
1 files changed, 2 insertions(+), 1 deletions(-)
diff --git a/libavcodec/utils.c b/libavcodec/utils.c
index f56dd7b..def614a 100644
--- a/libavcodec/utils.c
+++ b/libavcodec/utils.c
@@ -731,7 +731,8 @@ int attribute_align_arg avcodec_open2(AVCodecContext
*avctx, const AVCodec *code
avctx->frame_number = 0;
if (avctx->codec_type == AVMEDIA_TYPE_AUDIO &&
- (!avctx->time_base.num || !avctx->time_base.den)) {
+ (av_codec_is_decoder(avctx->codec) ||
+ !avctx->time_base.num || !avctx->time_base.den)) {
avctx->time_base.num = 1;
avctx->time_base.den = avctx->sample_rate;
}
--
1.7.1
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