mirror of https://git.ffmpeg.org/ffmpeg.git
avcodec/libcodec2: Avoid copying packet data, allow user-supplied buffers
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. Reviewed-by: James Almer <jamrial@gmail.com> Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
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@ -22,6 +22,7 @@
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#include <codec2/codec2.h>
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#include "avcodec.h"
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#include "libavutil/opt.h"
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#include "encode.h"
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#include "internal.h"
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#include "codec2utils.h"
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@ -169,7 +170,7 @@ static int libcodec2_encode(AVCodecContext *avctx, AVPacket *avpkt,
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LibCodec2Context *c2 = avctx->priv_data;
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int16_t *samples = (int16_t *)frame->data[0];
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int ret = ff_alloc_packet2(avctx, avpkt, avctx->block_align, 0);
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int ret = ff_get_encode_buffer(avctx, avpkt, avctx->block_align, 0);
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if (ret < 0) {
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return ret;
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}
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@ -201,11 +202,11 @@ const AVCodec ff_libcodec2_encoder = {
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.long_name = NULL_IF_CONFIG_SMALL("codec2 encoder using libcodec2"),
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.type = AVMEDIA_TYPE_AUDIO,
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.id = AV_CODEC_ID_CODEC2,
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.capabilities = AV_CODEC_CAP_DR1,
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.priv_data_size = sizeof(LibCodec2Context),
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.init = libcodec2_init_encoder,
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.close = libcodec2_close,
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.encode2 = libcodec2_encode,
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.capabilities = 0,
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.supported_samplerates = (const int[]){ 8000, 0 },
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.sample_fmts = (const enum AVSampleFormat[]) { AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_NONE },
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.channel_layouts = (const uint64_t[]) { AV_CH_LAYOUT_MONO, 0 },
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