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avfilter/vf_framepack: Use dedicated pointer for access 

Improves readability.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
This commit is contained in:
Andreas Rheinhardt 2023-09-07 00:16:31 +02:00
parent 423b6a7e49
commit da784b81a6
1 changed files with 14 additions and 12 deletions
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26
libavfilter/vf_framepack.c
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@ -233,19 +233,20 @@ static void horizontal_frame_pack(AVFilterLink *outlink,
} }
} else { } else {
for (i = 0; i < 2; i++) { for (i = 0; i < 2; i++) {
const AVFrame *const input_view = s->input_views[i];
const int psize = 1 + (s->depth > 8); const int psize = 1 + (s->depth > 8);
uint8_t *dst[4]; uint8_t *dst[4];
int sub_w = psize * s->input_views[i]->width >> s->pix_desc->log2_chroma_w; int sub_w = psize * input_view->width >> s->pix_desc->log2_chroma_w;
dst[0] = out->data[0] + i * s->input_views[i]->width * psize; dst[0] = out->data[0] + i * input_view->width * psize;
dst[1] = out->data[1] + i * sub_w; dst[1] = out->data[1] + i * sub_w;
dst[2] = out->data[2] + i * sub_w; dst[2] = out->data[2] + i * sub_w;
av_image_copy2(dst, out->linesize, av_image_copy2(dst, out->linesize,
s->input_views[i]->data, s->input_views[i]->linesize, input_view->data, input_view->linesize,
s->input_views[i]->format, input_view->format,
s->input_views[i]->width, input_view->width,
s->input_views[i]->height); input_view->height);
} }
} }
} }
@ -259,12 +260,13 @@ static void vertical_frame_pack(AVFilterLink *outlink,
int i; int i;
for (i = 0; i < 2; i++) { for (i = 0; i < 2; i++) {
const AVFrame *const input_view = s->input_views[i];
uint8_t *dst[4]; uint8_t *dst[4];
int linesizes[4]; int linesizes[4];
int sub_h = s->input_views[i]->height >> s->pix_desc->log2_chroma_h; int sub_h = input_view->height >> s->pix_desc->log2_chroma_h;
dst[0] = out->data[0] + i * out->linesize[0] * dst[0] = out->data[0] + i * out->linesize[0] *
(interleaved + s->input_views[i]->height * (1 - interleaved)); (interleaved + input_view->height * (1 - interleaved));
dst[1] = out->data[1] + i * out->linesize[1] * dst[1] = out->data[1] + i * out->linesize[1] *
(interleaved + sub_h * (1 - interleaved)); (interleaved + sub_h * (1 - interleaved));
dst[2] = out->data[2] + i * out->linesize[2] * dst[2] = out->data[2] + i * out->linesize[2] *
@ -278,10 +280,10 @@ static void vertical_frame_pack(AVFilterLink *outlink,
interleaved * out->linesize[2]; interleaved * out->linesize[2];
av_image_copy2(dst, linesizes, av_image_copy2(dst, linesizes,
s->input_views[i]->data, s->input_views[i]->linesize, input_view->data, input_view->linesize,
s->input_views[i]->format, input_view->format,
s->input_views[i]->width, input_view->width,
s->input_views[i]->height); input_view->height);
} }
} }