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Theora: Fix UV channel offset when cropping region

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This commit is contained in:
Bernat Arlandis
2025-05-24 20:00:41 +02:00
parent 45fc515ae3
commit 78a66b4c16
1 changed files with 4 additions and 1 deletions
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5
modules/theora/video_stream_theora.cpp
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@@ -235,13 +235,16 @@ void VideoStreamPlaybackTheora::video_write(th_ycbcr_buffer yuv) {
uint8_t *w = frame_data.ptrw();
char *dst = (char *)w;
uint32_t y_offset = region.position.y * yuv[0].stride + region.position.x;
uint32_t uv_offset = region.position.y * yuv[1].stride + region.position.x;
uint32_t uv_offset = 0;
if (px_fmt == TH_PF_444) {
uv_offset += region.position.y * yuv[1].stride + region.position.x;
yuv444_2_rgb8888((uint8_t *)dst, (uint8_t *)yuv[0].data + y_offset, (uint8_t *)yuv[1].data + uv_offset, (uint8_t *)yuv[2].data + uv_offset, region.size.x, region.size.y, yuv[0].stride, yuv[1].stride, region.size.x << 2);
} else if (px_fmt == TH_PF_422) {
uv_offset += region.position.y * yuv[1].stride + region.position.x / 2;
yuv422_2_rgb8888((uint8_t *)dst, (uint8_t *)yuv[0].data + y_offset, (uint8_t *)yuv[1].data + uv_offset, (uint8_t *)yuv[2].data + uv_offset, region.size.x, region.size.y, yuv[0].stride, yuv[1].stride, region.size.x << 2);
} else if (px_fmt == TH_PF_420) {
uv_offset += region.position.y * yuv[1].stride / 2 + region.position.x / 2;
yuv420_2_rgb8888((uint8_t *)dst, (uint8_t *)yuv[0].data + y_offset, (uint8_t *)yuv[1].data + uv_offset, (uint8_t *)yuv[2].data + uv_offset, region.size.x, region.size.y, yuv[0].stride, yuv[1].stride, region.size.x << 2);
}