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avcodec/magicyuvenc: Store slice width and height

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Avoids rederiving it every time.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
This commit is contained in:
Andreas Rheinhardt
2025-04-17 06:34:22 +02:00
parent 4e0a29d2f6
commit 05bda9d3df
1 changed files with 9 additions and 12 deletions
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21
libavcodec/magicyuvenc.c
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@ -54,6 +54,8 @@ typedef struct PTable {
} PTable;
typedef struct Slice {
int width;
int height;
unsigned pos;
unsigned size;
uint8_t *slice;
@ -226,6 +228,10 @@ static av_cold int magy_encode_init(AVCodecContext *avctx)
for (int i = 0; i < s->planes; i++) {
Slice *sl = &s->slices[n * s->planes + i];
sl->height = n == s->nb_slices - 1 ? avctx->height - n * s->slice_height : s->slice_height;
sl->height = AV_CEIL_RSHIFT(sl->height, s->vshift[i]);
sl->width = AV_CEIL_RSHIFT(avctx->width, s->hshift[i]);
sl->bitslice = av_malloc(s->bitslice_size + AV_INPUT_BUFFER_PADDING_SIZE);
sl->slice = av_malloc(avctx->width * (s->slice_height + 2) +
AV_INPUT_BUFFER_PADDING_SIZE);
@ -379,14 +385,10 @@ static int count_plane_slice(AVCodecContext *avctx, int n, int plane)
Slice *sl = &s->slices[n * s->planes + plane];
const uint8_t *dst = sl->slice;
int64_t *counts = sl->counts;
const int slice_height = s->slice_height;
const int last_height = FFMIN(slice_height, avctx->height - n * slice_height);
const int height = (n < (s->nb_slices - 1)) ? slice_height : last_height;
memset(counts, 0, sizeof(sl->counts));
count_usage(dst, AV_CEIL_RSHIFT(avctx->width, s->hshift[plane]),
AV_CEIL_RSHIFT(height, s->vshift[plane]), counts);
count_usage(dst, sl->width, sl->height, counts);
return 0;
}
@ -478,9 +480,6 @@ static int encode_slice(AVCodecContext *avctx, void *tdata,
int n, int threadnr)
{
MagicYUVContext *s = avctx->priv_data;
const int slice_height = s->slice_height;
const int last_height = FFMIN(slice_height, avctx->height - n * slice_height);
const int height = (n < (s->nb_slices - 1)) ? slice_height : last_height;
for (int i = 0; i < s->planes; i++) {
Slice *sl = &s->slices[n * s->planes + i];
@ -489,8 +488,7 @@ static int encode_slice(AVCodecContext *avctx, void *tdata,
encode_plane_slice(sl->slice,
sl->bitslice,
s->bitslice_size,
AV_CEIL_RSHIFT(avctx->width, s->hshift[i]),
AV_CEIL_RSHIFT(height, s->vshift[i]),
sl->width, sl->height,
s->he[i], s->frame_pred);
}
@ -546,8 +544,7 @@ static int predict_slice(AVCodecContext *avctx, void *tdata,
s->predict(s, frame->data[i] + n * (slice_height >> s->vshift[i]) * frame->linesize[i],
sl->slice,
frame->linesize[i],
AV_CEIL_RSHIFT(frame->width, s->hshift[i]),
AV_CEIL_RSHIFT(height, s->vshift[i]));
sl->width, sl->height);
}
}