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Code Issues Releases Activity

avcodec/mpegvideo_enc: Factor checks out of loop

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Also move this code to init_matrices().

Reviewed-by: Ramiro Polla <ramiro.polla@gmail.com>
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
This commit is contained in:
Andreas Rheinhardt
2025-02-27 22:01:12 +01:00
parent 7223363ccb
commit a43124452f
1 changed files with 27 additions and 22 deletions
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49
libavcodec/mpegvideo_enc.c
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@ -350,6 +350,8 @@ static av_cold int me_cmp_init(MpegEncContext *s, AVCodecContext *avctx)
static av_cold int init_matrices(MpegEncContext *s, AVCodecContext *avctx)
{
const uint16_t *intra_matrix, *inter_matrix;
if (s->out_format == FMT_MJPEG) {
if (!FF_ALLOCZ_TYPED_ARRAY(s->q_chroma_intra_matrix, 32) ||
!FF_ALLOCZ_TYPED_ARRAY(s->q_chroma_intra_matrix16, 32))
@ -359,6 +361,31 @@ static av_cold int init_matrices(MpegEncContext *s, AVCodecContext *avctx)
s->q_chroma_intra_matrix16 = s->q_intra_matrix16;
}
if (CONFIG_MPEG4_ENCODER && s->codec_id == AV_CODEC_ID_MPEG4 &&
s->mpeg_quant) {
intra_matrix = ff_mpeg4_default_intra_matrix;
inter_matrix = ff_mpeg4_default_non_intra_matrix;
} else if (s->out_format == FMT_H263 || s->out_format == FMT_H261) {
intra_matrix =
inter_matrix = ff_mpeg1_default_non_intra_matrix;
} else {
/* MPEG-1/2, SpeedHQ */
intra_matrix = ff_mpeg1_default_intra_matrix;
inter_matrix = ff_mpeg1_default_non_intra_matrix;
}
if (avctx->intra_matrix)
intra_matrix = avctx->intra_matrix;
if (avctx->inter_matrix)
inter_matrix = avctx->inter_matrix;
/* init q matrix */
for (int i = 0; i < 64; i++) {
int j = s->idsp.idct_permutation[i];
s->intra_matrix[j] = s->chroma_intra_matrix[j] = intra_matrix[i];
s->inter_matrix[j] = inter_matrix[i];
}
return 0;
}
@ -982,28 +1009,6 @@ av_cold int ff_mpv_encode_init(AVCodecContext *avctx)
#endif
}
/* init q matrix */
for (i = 0; i < 64; i++) {
int j = s->idsp.idct_permutation[i];
if (CONFIG_MPEG4_ENCODER && s->codec_id == AV_CODEC_ID_MPEG4 &&
s->mpeg_quant) {
s->intra_matrix[j] = ff_mpeg4_default_intra_matrix[i];
s->inter_matrix[j] = ff_mpeg4_default_non_intra_matrix[i];
} else if (s->out_format == FMT_H263 || s->out_format == FMT_H261) {
s->intra_matrix[j] =
s->inter_matrix[j] = ff_mpeg1_default_non_intra_matrix[i];
} else {
/* MPEG-1/2, SpeedHQ */
s->chroma_intra_matrix[j] =
s->intra_matrix[j] = ff_mpeg1_default_intra_matrix[i];
s->inter_matrix[j] = ff_mpeg1_default_non_intra_matrix[i];
}
if (avctx->intra_matrix)
s->intra_matrix[j] = avctx->intra_matrix[i];
if (avctx->inter_matrix)
s->inter_matrix[j] = avctx->inter_matrix[i];
}
/* precompute matrix */
/* for mjpeg, we do include qscale in the matrix */
if (s->out_format != FMT_MJPEG) {