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Code Issues Releases Activity

avcodec/ra144enc: Avoid copying packet data, allow user-supplied buffers

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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@outlook.com>
This commit is contained in:
Andreas Rheinhardt
2021-04-25 01:43:26 +02:00
parent 184a8852f1
commit 8eef32d394
1 changed files with 4 additions and 3 deletions
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7
libavcodec/ra144enc.c
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@@ -30,6 +30,7 @@
#include "avcodec.h" #include "avcodec.h"
#include "audio_frame_queue.h" #include "audio_frame_queue.h"
#include "celp_filters.h" #include "celp_filters.h"
#include "encode.h"
#include "internal.h" #include "internal.h"
#include "mathops.h" #include "mathops.h"
#include "put_bits.h" #include "put_bits.h"
@@ -444,7 +445,7 @@ static int ra144_encode_frame(AVCodecContext *avctx, AVPacket *avpkt,
if (ractx->last_frame) if (ractx->last_frame)
return 0; return 0;
if ((ret = ff_alloc_packet2(avctx, avpkt, FRAME_SIZE, 0)) < 0) if ((ret = ff_get_encode_buffer(avctx, avpkt, FRAME_SIZE, 0)) < 0)
return ret; return ret;
/** /**
@@ -533,7 +534,6 @@ static int ra144_encode_frame(AVCodecContext *avctx, AVPacket *avpkt,
ff_af_queue_remove(&ractx->afq, avctx->frame_size, &avpkt->pts, ff_af_queue_remove(&ractx->afq, avctx->frame_size, &avpkt->pts,
&avpkt->duration); &avpkt->duration);
avpkt->size = FRAME_SIZE;
*got_packet_ptr = 1; *got_packet_ptr = 1;
return 0; return 0;
} }
@@ -544,11 +544,12 @@ const AVCodec ff_ra_144_encoder = {
.long_name = NULL_IF_CONFIG_SMALL("RealAudio 1.0 (14.4K)"), .long_name = NULL_IF_CONFIG_SMALL("RealAudio 1.0 (14.4K)"),
.type = AVMEDIA_TYPE_AUDIO, .type = AVMEDIA_TYPE_AUDIO,
.id = AV_CODEC_ID_RA_144, .id = AV_CODEC_ID_RA_144,
.capabilities = AV_CODEC_CAP_DR1 | AV_CODEC_CAP_DELAY |
AV_CODEC_CAP_SMALL_LAST_FRAME,
.priv_data_size = sizeof(RA144Context), .priv_data_size = sizeof(RA144Context),
.init = ra144_encode_init, .init = ra144_encode_init,
.encode2 = ra144_encode_frame, .encode2 = ra144_encode_frame,
.close = ra144_encode_close, .close = ra144_encode_close,
.capabilities = AV_CODEC_CAP_DELAY | AV_CODEC_CAP_SMALL_LAST_FRAME,
.sample_fmts = (const enum AVSampleFormat[]){ AV_SAMPLE_FMT_S16, .sample_fmts = (const enum AVSampleFormat[]){ AV_SAMPLE_FMT_S16,
AV_SAMPLE_FMT_NONE }, AV_SAMPLE_FMT_NONE },
.supported_samplerates = (const int[]){ 8000, 0 }, .supported_samplerates = (const int[]){ 8000, 0 },