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dvdspu: Fix the rendering of PGS windows with left != 0

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When rendering a PGS window area where the left edge is not at
pixel 0, the chroma was being rendered in the wrong place since
commit 4dc648d343
This commit is contained in:
Jan Schmidt 2013-02-07 22:26:15 +11:00
parent 12255ff660
commit 0344b33f40
1 changed files with 2 additions and 0 deletions
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2
gst/dvdspu/gstdvdspu-render.c
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@ -79,6 +79,8 @@ gstspu_blend_comp_buffers (SpuState * state, guint8 * planes[3])
uv_end = (comp_last_x + 1) / 2;
left = state->comp_left / 2;
out_U += left * GST_VIDEO_INFO_COMP_PSTRIDE (&state->info, 1);
out_V += left * GST_VIDEO_INFO_COMP_PSTRIDE (&state->info, 2);
for (x = left; x < uv_end; x++) {
guint32 tmp;
/* Each entry in the compositing buffer is 4 summed pixels, so the