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avcodec/mpegvideo_enc: Don't copy Picture unnecessarily 

Also add const where possible.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
This commit is contained in:
Andreas Rheinhardt 2022-08-09 13:34:25 +02:00
parent 73ea6db0ba
commit 51d02911f0
1 changed files with 7 additions and 8 deletions
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15
libavcodec/mpegvideo_enc.c
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@ -1249,15 +1249,14 @@ static int estimate_best_b_count(MpegEncContext *s)
FF_LAMBDA_SHIFT;
for (i = 0; i < s->max_b_frames + 2; i++) {
Picture pre_input, *pre_input_ptr = i ? s->input_picture[i - 1] :
s->next_picture_ptr;
uint8_t *data[4];
const Picture *pre_input_ptr = i ? s->input_picture[i - 1] :
s->next_picture_ptr;
if (pre_input_ptr && (!i || s->input_picture[i - 1])) {
pre_input = *pre_input_ptr;
const uint8_t *data[4];
memcpy(data, pre_input_ptr->f->data, sizeof(data));
if (!pre_input.shared && i) {
if (!pre_input_ptr->shared && i) {
data[0] += INPLACE_OFFSET;
data[1] += INPLACE_OFFSET;
data[2] += INPLACE_OFFSET;
@ -1266,17 +1265,17 @@ static int estimate_best_b_count(MpegEncContext *s)
s->mpvencdsp.shrink[scale](s->tmp_frames[i]->data[0],
s->tmp_frames[i]->linesize[0],
data[0],
pre_input.f->linesize[0],
pre_input_ptr->f->linesize[0],
width, height);
s->mpvencdsp.shrink[scale](s->tmp_frames[i]->data[1],
s->tmp_frames[i]->linesize[1],
data[1],
pre_input.f->linesize[1],
pre_input_ptr->f->linesize[1],
width >> 1, height >> 1);
s->mpvencdsp.shrink[scale](s->tmp_frames[i]->data[2],
s->tmp_frames[i]->linesize[2],
data[2],
pre_input.f->linesize[2],
pre_input_ptr->f->linesize[2],
width >> 1, height >> 1);
}
}