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avcodec/dnxhdenc: 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. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
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@ -30,6 +30,7 @@
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#include "avcodec.h"
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#include "blockdsp.h"
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#include "encode.h"
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#include "fdctdsp.h"
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#include "internal.h"
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#include "mpegvideo.h"
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@ -1257,7 +1258,7 @@ static int dnxhd_encode_picture(AVCodecContext *avctx, AVPacket *pkt,
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int offset, i, ret;
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uint8_t *buf;
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if ((ret = ff_alloc_packet2(avctx, pkt, ctx->frame_size, 0)) < 0)
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if ((ret = ff_get_encode_buffer(avctx, pkt, ctx->frame_size, 0)) < 0)
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return ret;
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buf = pkt->data;
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@ -1354,11 +1355,12 @@ const AVCodec ff_dnxhd_encoder = {
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.long_name = NULL_IF_CONFIG_SMALL("VC3/DNxHD"),
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.type = AVMEDIA_TYPE_VIDEO,
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.id = AV_CODEC_ID_DNXHD,
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.capabilities = AV_CODEC_CAP_DR1 | AV_CODEC_CAP_FRAME_THREADS |
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AV_CODEC_CAP_SLICE_THREADS,
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.priv_data_size = sizeof(DNXHDEncContext),
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.init = dnxhd_encode_init,
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.encode2 = dnxhd_encode_picture,
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.close = dnxhd_encode_end,
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.capabilities = AV_CODEC_CAP_SLICE_THREADS | AV_CODEC_CAP_FRAME_THREADS,
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.caps_internal = FF_CODEC_CAP_INIT_CLEANUP,
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.pix_fmts = (const enum AVPixelFormat[]) {
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AV_PIX_FMT_YUV422P,
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