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libobs/media-io: Add frame copying function

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This commit is contained in:
jp9000 2014-12-31 00:29:51 -08:00
parent 5d0551eb27
commit 8e1549820b
2 changed files with 32 additions and 0 deletions
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28
libobs/media-io/video-frame.c
View file

@ -86,3 +86,31 @@ void video_frame_init(struct video_frame *frame, enum video_format format,
}
}
void video_frame_copy(struct video_frame *dst, const struct video_frame *src,
enum video_format format, uint32_t cy)
{
switch (format) {
case VIDEO_FORMAT_NONE:
return;
case VIDEO_FORMAT_I420:
memcpy(dst->data[0], src->data[0], src->linesize[0] * cy);
memcpy(dst->data[1], src->data[1], src->linesize[1] * cy / 2);
memcpy(dst->data[2], src->data[2], src->linesize[2] * cy / 2);
break;
case VIDEO_FORMAT_NV12:
memcpy(dst->data[0], src->data[0], src->linesize[0] * cy);
memcpy(dst->data[1], src->data[1], src->linesize[1] * cy / 2);
break;
case VIDEO_FORMAT_YVYU:
case VIDEO_FORMAT_YUY2:
case VIDEO_FORMAT_UYVY:
case VIDEO_FORMAT_RGBA:
case VIDEO_FORMAT_BGRA:
case VIDEO_FORMAT_BGRX:
memcpy(dst->data[0], src->data[0], src->linesize[0] * cy);
break;
}
}

4
libobs/media-io/video-frame.h
View file

@ -53,3 +53,7 @@ static inline void video_frame_destroy(struct video_frame *frame)
bfree(frame);
}
}
EXPORT void video_frame_copy(struct video_frame *dst,
const struct video_frame *src, enum video_format format,
uint32_t height);