[FFmpeg-devel] [PATCH 19/46] avcodec/g722enc: Avoid copying packet data, allow user-supplied buffers
Andreas Rheinhardt
andreas.rheinhardt at outlook.com
Fri Apr 30 02:56:50 EEST 2021
When the packet size is known in advance like here, one can avoid
an intermediate buffer for the packet data by using
ff_get_encode_buffer() and also set AV_CODEC_CAP_DR1 at the same time.
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt at outlook.com>
---
libavcodec/g722enc.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/libavcodec/g722enc.c b/libavcodec/g722enc.c
index 24880f9550..fadadd5cdf 100644
--- a/libavcodec/g722enc.c
+++ b/libavcodec/g722enc.c
@@ -29,6 +29,7 @@
#include "libavutil/avassert.h"
#include "avcodec.h"
+#include "encode.h"
#include "internal.h"
#include "g722.h"
#include "libavutil/common.h"
@@ -346,7 +347,7 @@ static int g722_encode_frame(AVCodecContext *avctx, AVPacket *avpkt,
int nb_samples, out_size, ret;
out_size = (frame->nb_samples + 1) / 2;
- if ((ret = ff_alloc_packet2(avctx, avpkt, out_size, 0)) < 0)
+ if ((ret = ff_get_encode_buffer(avctx, avpkt, out_size, 0)) < 0)
return ret;
nb_samples = frame->nb_samples - (frame->nb_samples & 1);
@@ -373,11 +374,11 @@ const AVCodec ff_adpcm_g722_encoder = {
.long_name = NULL_IF_CONFIG_SMALL("G.722 ADPCM"),
.type = AVMEDIA_TYPE_AUDIO,
.id = AV_CODEC_ID_ADPCM_G722,
+ .capabilities = AV_CODEC_CAP_DR1 | AV_CODEC_CAP_SMALL_LAST_FRAME,
.priv_data_size = sizeof(G722Context),
.init = g722_encode_init,
.close = g722_encode_close,
.encode2 = g722_encode_frame,
- .capabilities = AV_CODEC_CAP_SMALL_LAST_FRAME,
.sample_fmts = (const enum AVSampleFormat[]){ AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_NONE },
.channel_layouts = (const uint64_t[]){ AV_CH_LAYOUT_MONO, 0 },
.caps_internal = FF_CODEC_CAP_INIT_CLEANUP,
--
2.27.0
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