[FFmpeg-devel] [PATCH 01/34] avcodec/adpcmenc: Avoid copying packet data

Andreas Rheinhardt andreas.rheinhardt at outlook.com
Mon Apr 26 01:28:32 EEST 2021


When the packet size is known in advance like here, one can avoid
an intermediate buffer for the packet data.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt at outlook.com>
---
 libavcodec/adpcmenc.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/libavcodec/adpcmenc.c b/libavcodec/adpcmenc.c
index 9dc77d519a..131e3b3910 100644
--- a/libavcodec/adpcmenc.c
+++ b/libavcodec/adpcmenc.c
@@ -598,7 +598,7 @@ static int adpcm_encode_frame(AVCodecContext *avctx, AVPacket *avpkt,
         pkt_size = (frame->nb_samples * avctx->channels) / 2;
     else
         pkt_size = avctx->block_align;
-    if ((ret = ff_alloc_packet2(avctx, avpkt, pkt_size, 0)) < 0)
+    if ((ret = ff_alloc_packet2(avctx, avpkt, pkt_size, pkt_size)) < 0)
         return ret;
     dst = avpkt->data;
 
@@ -933,7 +933,6 @@ static int adpcm_encode_frame(AVCodecContext *avctx, AVPacket *avpkt,
         return AVERROR(EINVAL);
     }
 
-    avpkt->size = pkt_size;
     *got_packet_ptr = 1;
     return 0;
 }
-- 
2.27.0



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