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avcodec/magicyuvenc: Use immediate when known

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It allows the compiler to optimize the bytestream2 checks away.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
This commit is contained in:
Andreas Rheinhardt 2021-09-28 13:55:33 +02:00
parent 1f387ae4cb
commit 4b1aa74de3
1 changed files with 4 additions and 2 deletions
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6
libavcodec/magicyuvenc.c
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@ -34,6 +34,8 @@
#include "thread.h"
#include "lossless_videoencdsp.h"
#define MAGICYUV_EXTRADATA_SIZE 32
typedef enum Prediction {
LEFT = 1,
GRADIENT,
@ -214,7 +216,7 @@ static av_cold int magy_encode_init(AVCodecContext *avctx)
case MEDIAN: s->predict = median_predict; break;
}
avctx->extradata_size = 32;
avctx->extradata_size = MAGICYUV_EXTRADATA_SIZE;
avctx->extradata = av_mallocz(avctx->extradata_size +
AV_INPUT_BUFFER_PADDING_SIZE);
@ -224,7 +226,7 @@ static av_cold int magy_encode_init(AVCodecContext *avctx)
return AVERROR(ENOMEM);
}
bytestream2_init_writer(&pb, avctx->extradata, avctx->extradata_size);
bytestream2_init_writer(&pb, avctx->extradata, MAGICYUV_EXTRADATA_SIZE);
bytestream2_put_le32(&pb, MKTAG('M', 'A', 'G', 'Y'));
bytestream2_put_le32(&pb, 32);
bytestream2_put_byte(&pb, 7);