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avcodec/mpegvideo_enc: fix b frame strategy 2

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Fixes Ticket3757

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2014-07-07 14:51:41 +02:00
parent 3be90723e7
commit 8324bd5186
1 changed files with 8 additions and 6 deletions
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14
libavcodec/mpegvideo_enc.c
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@ -1265,24 +1265,26 @@ static int estimate_best_b_count(MpegEncContext *s)
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];
if (pre_input_ptr && (!i || s->input_picture[i - 1])) {
pre_input = *pre_input_ptr;
memcpy(data, pre_input_ptr->f->data, sizeof(data));
if (!pre_input.shared && i) {
pre_input.f->data[0] += INPLACE_OFFSET;
pre_input.f->data[1] += INPLACE_OFFSET;
pre_input.f->data[2] += INPLACE_OFFSET;
data[0] += INPLACE_OFFSET;
data[1] += INPLACE_OFFSET;
data[2] += INPLACE_OFFSET;
}
s->dsp.shrink[scale](s->tmp_frames[i]->data[0], s->tmp_frames[i]->linesize[0],
pre_input.f->data[0], pre_input.f->linesize[0],
data[0], pre_input.f->linesize[0],
c->width, c->height);
s->dsp.shrink[scale](s->tmp_frames[i]->data[1], s->tmp_frames[i]->linesize[1],
pre_input.f->data[1], pre_input.f->linesize[1],
data[1], pre_input.f->linesize[1],
c->width >> 1, c->height >> 1);
s->dsp.shrink[scale](s->tmp_frames[i]->data[2], s->tmp_frames[i]->linesize[2],
pre_input.f->data[2], pre_input.f->linesize[2],
data[2], pre_input.f->linesize[2],
c->width >> 1, c->height >> 1);
}
}