[FFmpeg-devel] [PATCH 33/34] avcodec/libshine: Avoid copying packet data
Andreas Rheinhardt
andreas.rheinhardt at outlook.com
Mon Apr 26 01:34:47 EEST 2021
The libshine encoder already uses an internal buffer, so that the
packet size is already known before allocating the packet; therefore
one can avoid another (implicit) intermediate buffer by setting
the min_size parameter in ff_alloc_packet2().
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt at outlook.com>
---
libavcodec/libshine.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/libavcodec/libshine.c b/libavcodec/libshine.c
index 7056fcd2e3..dcda996ad1 100644
--- a/libavcodec/libshine.c
+++ b/libavcodec/libshine.c
@@ -102,7 +102,7 @@ static int libshine_encode_frame(AVCodecContext *avctx, AVPacket *avpkt,
len = hdr.frame_size;
if (len <= s->buffer_index) {
- if ((ret = ff_alloc_packet2(avctx, avpkt, len, 0)))
+ if ((ret = ff_alloc_packet2(avctx, avpkt, len, len)))
return ret;
memcpy(avpkt->data, s->buffer, len);
s->buffer_index -= len;
@@ -111,7 +111,6 @@ static int libshine_encode_frame(AVCodecContext *avctx, AVPacket *avpkt,
ff_af_queue_remove(&s->afq, avctx->frame_size, &avpkt->pts,
&avpkt->duration);
- avpkt->size = len;
*got_packet_ptr = 1;
}
return 0;
--
2.27.0
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