jp9000/obs-studio
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Add NV12 conversion shader

Browse Source
This commit is contained in:
Palana
2014-04-04 20:49:23 +02:00
parent 1bca7e0a3e
commit 4edadcc0a6
2 changed files with 105 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

32
libobs/obs.c
View File

@@ -83,6 +83,34 @@ static inline void set_420p_sizes(const struct obs_video_info *ovi)
video->conversion_tech = "Planar420";
}
static inline void set_nv12_sizes(const struct obs_video_info *ovi)
{
struct obs_core_video *video = &obs->video;
uint32_t chroma_pixels;
uint32_t total_bytes;
chroma_pixels = (ovi->output_width * ovi->output_height / 2);
chroma_pixels = GET_ALIGN(chroma_pixels, PIXEL_SIZE);
video->plane_offsets[0] = 0;
video->plane_offsets[1] = ovi->output_width * ovi->output_height;
video->plane_linewidth[0] = ovi->output_width;
video->plane_linewidth[1] = ovi->output_width;
video->plane_sizes[0] = video->plane_offsets[1];
video->plane_sizes[1] = video->plane_sizes[0]/2;
total_bytes = video->plane_offsets[1] + chroma_pixels;
video->conversion_height =
(total_bytes/PIXEL_SIZE + ovi->output_width-1) /
ovi->output_width;
video->conversion_height = GET_ALIGN(video->conversion_height, 2);
video->conversion_tech = "NV12";
}
static inline void calc_gpu_conversion_sizes(const struct obs_video_info *ovi)
{
obs->video.conversion_height = 0;
@@ -94,6 +122,10 @@ static inline void calc_gpu_conversion_sizes(const struct obs_video_info *ovi)
switch ((uint32_t)ovi->output_format) {
case VIDEO_FORMAT_I420:
set_420p_sizes(ovi);
break;
case VIDEO_FORMAT_NV12:
set_nv12_sizes(ovi);
break;
}
}