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| author | Michael Niedermayer <michaelni@gmx.at> | 2013-11-19 14:17:26 +0100 |
|---|---|---|
| committer | Michael Niedermayer <michaelni@gmx.at> | 2013-11-19 15:13:48 +0100 |
| commit | ef627bf9ecddfa888d4c6e4fd633852798c3b4a9 (patch) | |
| tree | acda9d2b5e84c4435999c1b7d4462f2a951c4215 /libswscale/swscale_unscaled.c | |
| parent | 722fb81dc5c8546eb6498629db7c8ebe2f9545c2 (diff) | |
| download | ffmpeg-ef627bf9ecddfa888d4c6e4fd633852798c3b4a9.tar.gz | |
swscale: add nv12/nv21->yuv420 converter
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Diffstat (limited to 'libswscale/swscale_unscaled.c')
| -rw-r--r-- | libswscale/swscale_unscaled.c | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/libswscale/swscale_unscaled.c b/libswscale/swscale_unscaled.c index 9f6d8193d8..bd9e7a59e2 100644 --- a/libswscale/swscale_unscaled.c +++ b/libswscale/swscale_unscaled.c @@ -176,6 +176,27 @@ static int planarToNv12Wrapper(SwsContext *c, const uint8_t *src[], return srcSliceH; } +static int nv12ToPlanarWrapper(SwsContext *c, const uint8_t *src[], + int srcStride[], int srcSliceY, + int srcSliceH, uint8_t *dstParam[], + int dstStride[]) +{ + uint8_t *dst1 = dstParam[1] + dstStride[1] * srcSliceY / 2; + uint8_t *dst2 = dstParam[2] + dstStride[2] * srcSliceY / 2; + + copyPlane(src[0], srcStride[0], srcSliceY, srcSliceH, c->srcW, + dstParam[0], dstStride[0]); + + if (c->srcFormat == AV_PIX_FMT_NV12) + deinterleaveBytes(src[1], dst1, dst2,c->srcW / 2, srcSliceH / 2, + srcStride[1], dstStride[1], dstStride[2]); + else + deinterleaveBytes(src[1], dst2, dst1, c->srcW / 2, srcSliceH / 2, + srcStride[1], dstStride[2], dstStride[1]); + + return srcSliceH; +} + static int planarToYuy2Wrapper(SwsContext *c, const uint8_t *src[], int srcStride[], int srcSliceY, int srcSliceH, uint8_t *dstParam[], int dstStride[]) @@ -1212,6 +1233,11 @@ void ff_get_unscaled_swscale(SwsContext *c) (dstFormat == AV_PIX_FMT_NV12 || dstFormat == AV_PIX_FMT_NV21)) { c->swscale = planarToNv12Wrapper; } + /* nv12_to_yv12 */ + if (dstFormat == AV_PIX_FMT_YUV420P && + (srcFormat == AV_PIX_FMT_NV12 || srcFormat == AV_PIX_FMT_NV21)) { + c->swscale = nv12ToPlanarWrapper; + } /* yuv2bgr */ if ((srcFormat == AV_PIX_FMT_YUV420P || srcFormat == AV_PIX_FMT_YUV422P || srcFormat == AV_PIX_FMT_YUVA420P) && isAnyRGB(dstFormat) && |