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Cineform: support for I420

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This commit is contained in:
Martin Pulec
2020-02-27 13:46:23 +01:00
parent c05c4ecf38
commit 2541bcc357
1 changed files with 27 additions and 0 deletions
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27
src/video_compress/cineform.cpp
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@@ -216,6 +216,32 @@ static struct module * cineform_compress_init(struct module *parent, const char
return &s->module_data;
}
static void I420toUYVY(video_frame *dst, video_frame *src)
{
size_t y_len = src->tiles[0].width * src->tiles[0].height;
size_t chroma_len = ((src->tiles[0].width + 1) / 2) * ((src->tiles[0].height + 1) / 2);
char *y = src->tiles[0].data;
char *out = dst->tiles[0].data;
size_t chroma_pitch = ((dst->tiles[0].width + 1) & ~1) / 2; // handle also odd line widths
for (size_t i = 0; i < dst->tiles[0].height; i += 1) {
char *u = src->tiles[0].data + y_len + i / 2 * chroma_pitch;
char *v = src->tiles[0].data + y_len + chroma_len + i / 2 * chroma_pitch;
size_t j;
for (j = 0; j <= dst->tiles[0].width - 2; j += 2) {
*out++ = *u++;
*out++ = *y++;
*out++ = *v++;
*out++ = *y++;
}
if (j < dst->tiles[0].width) { // last pixel on line with odd width
*out++ = *u++;
*out++ = *y++;
*out++ = *v++;
*out++ = 0;
}
}
}
static void RGBtoBGR_invert(video_frame *dst, video_frame *src){
int pitch = vc_get_linesize(src->tiles[0].width, src->color_spec);
@@ -276,6 +302,7 @@ static struct {
codec_t convert_codec;
void (*convertFunc)(video_frame *dst, video_frame *src);
} codecs[] = {
{I420, CFHD_PIXEL_FORMAT_2VUY, CFHD_ENCODED_FORMAT_YUV_422, UYVY, I420toUYVY},
{UYVY, CFHD_PIXEL_FORMAT_2VUY, CFHD_ENCODED_FORMAT_YUV_422, VIDEO_CODEC_NONE, nullptr},
{RGB, CFHD_PIXEL_FORMAT_RG24, CFHD_ENCODED_FORMAT_RGB_444, VIDEO_CODEC_NONE, RGBtoBGR_invert},
{RGBA, CFHD_PIXEL_FORMAT_BGRa, CFHD_ENCODED_FORMAT_RGBA_4444, VIDEO_CODEC_NONE, RGBAtoBGRA},