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libobs: obs-ffmpeg: win-dshow: Planar 4:2:2 video

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This format has been seen when using FFmpeg MJPEG decompression.
This commit is contained in:
James Park
2019-06-17 22:25:18 -07:00
committed by jpark37
parent f54fda4678
commit 37f663a789
7 changed files with 83 additions and 0 deletions
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18
libobs/media-io/video-frame.c
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@@ -108,6 +108,23 @@ void video_frame_init(struct video_frame *frame, enum video_format format,
frame->data[0] = bmalloc(size);
frame->linesize[0] = width * 3;
break;
case VIDEO_FORMAT_I422:
size = width * height;
ALIGN_SIZE(size, alignment);
offsets[0] = size;
size += (width / 2) * height;
ALIGN_SIZE(size, alignment);
offsets[1] = size;
size += (width / 2) * height;
ALIGN_SIZE(size, alignment);
frame->data[0] = bmalloc(size);
frame->data[1] = (uint8_t *)frame->data[0] + offsets[0];
frame->data[2] = (uint8_t *)frame->data[0] + offsets[1];
frame->linesize[0] = width;
frame->linesize[1] = width / 2;
frame->linesize[2] = width / 2;
break;
}
}
@@ -141,6 +158,7 @@ void video_frame_copy(struct video_frame *dst, const struct video_frame *src,
break;
case VIDEO_FORMAT_I444:
case VIDEO_FORMAT_I422:
memcpy(dst->data[0], src->data[0], src->linesize[0] * cy);
memcpy(dst->data[1], src->data[1], src->linesize[1] * cy);
memcpy(dst->data[2], src->data[2], src->linesize[2] * cy);

3
libobs/media-io/video-io.h
View File

@@ -53,6 +53,9 @@ enum video_format {
/* more packed uncompressed formats */
VIDEO_FORMAT_BGR3,
/* planar 4:2:2 */
VIDEO_FORMAT_I422,
};
enum video_colorspace {

2
libobs/media-io/video-scaler-ffmpeg.c
View File

@@ -53,6 +53,8 @@ get_ffmpeg_video_format(enum video_format format)
return AV_PIX_FMT_YUV444P;
case VIDEO_FORMAT_BGR3:
return AV_PIX_FMT_BGR24;
case VIDEO_FORMAT_I422:
return AV_PIX_FMT_YUV422P;
}
return AV_PIX_FMT_NONE;