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| author | Andreas Rheinhardt <andreas.rheinhardt@outlook.com> | 2021-03-29 18:54:46 +0200 |
|---|---|---|
| committer | Andreas Rheinhardt <andreas.rheinhardt@outlook.com> | 2021-04-02 12:06:56 +0200 |
| commit | 5d4234b3ea376c59a53a9ab6fb69aae8c5ee8fac (patch) | |
| tree | c4f558779ec59a5170b6e6e415b57a3ff280101d | |
| parent | 968c158abde36ebb7520706a69eebe3e8eacbd81 (diff) | |
| download | ffmpeg-5d4234b3ea376c59a53a9ab6fb69aae8c5ee8fac.tar.gz | |
avcodec/ac3enc: Avoid needlessly copying encoded packets around
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.rheinhardt@outlook.com>
| -rw-r--r-- | libavcodec/ac3enc.c | 3 |
1 files changed, 2 insertions, 1 deletions
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); |