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avcodec/mjpegenc_common: Don't call function unnecessarily 

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
This commit is contained in:
Andreas Rheinhardt 2021-12-22 03:39:16 +01:00
parent 8a0981d013
commit 3867b18120
1 changed files with 3 additions and 4 deletions
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7
libavcodec/mjpegenc_common.c
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@ -188,10 +188,6 @@ static void jpeg_put_comments(AVCodecContext *avctx, PutBitContext *p)
void ff_mjpeg_init_hvsample(AVCodecContext *avctx, int hsample[4], int vsample[4])
{
int chroma_h_shift, chroma_v_shift;
av_pix_fmt_get_chroma_sub_sample(avctx->pix_fmt, &chroma_h_shift,
&chroma_v_shift);
if (avctx->codec->id == AV_CODEC_ID_LJPEG &&
( avctx->pix_fmt == AV_PIX_FMT_BGR0
|| avctx->pix_fmt == AV_PIX_FMT_BGRA
@ -204,6 +200,9 @@ void ff_mjpeg_init_hvsample(AVCodecContext *avctx, int hsample[4], int vsample[4
vsample[0] = vsample[1] = vsample[2] = 2;
hsample[0] = hsample[1] = hsample[2] = 1;
} else {
int chroma_h_shift, chroma_v_shift;
av_pix_fmt_get_chroma_sub_sample(avctx->pix_fmt, &chroma_h_shift,
&chroma_v_shift);
vsample[0] = 2;
vsample[1] = 2 >> chroma_v_shift;
vsample[2] = 2 >> chroma_v_shift;