AC-3 and EAC-3 are codecs whose packet sizes are known in advance,
so one can use the min_size parameter of ff_alloc_packet2() to
allocate exactly this amount. This avoids a memcpy later in
av_packet_make_refcounted() in encode_simple_internal().
Signed-off-by: Andreas Rheinhardt <andreas.rheinha...@outlook.com>
---
Is there actually a reason not to use av_new_packet() (or
ff_get_encode_buffer()) directly?
libavcodec/ac3enc.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/libavcodec/ac3enc.c b/libavcodec/ac3enc.c
index 4cfd0afe12..fc4d45651d 100644
--- a/libavcodec/ac3enc.c
+++ b/libavcodec/ac3enc.c
@@ -1759,7 +1759,8 @@ int ff_ac3_encode_frame_common_end(AVCodecContext *avctx,
AVPacket *avpkt,
ac3_quantize_mantissas(s);
- if ((ret = ff_alloc_packet2(avctx, avpkt, s->frame_size, 0)) < 0)
+ ret = ff_alloc_packet2(avctx, avpkt, s->frame_size, s->frame_size);
+ if (ret < 0)
return ret;
ac3_output_frame(s, avpkt->data);
--
2.27.0
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