diff options
| author | Paul B Mahol <onemda@gmail.com> | 2020-08-02 15:55:38 +0200 |
|---|---|---|
| committer | Paul B Mahol <onemda@gmail.com> | 2020-08-08 12:03:42 +0200 |
| commit | 9d58cdb4ba9c2c53da74d0898e060cff30c74dcd (patch) | |
| tree | da78bd7ef75beff53d0f051945fe87f6786888a7 /libswscale/swscale_unscaled.c | |
| parent | b9ff25a93e9bd7002b18b2bdca6b6a77d7ceb6a0 (diff) | |
swscale: do not drop half of bits from 16bit bayer formats
Diffstat (limited to 'libswscale/swscale_unscaled.c')
| -rw-r--r-- | libswscale/swscale_unscaled.c | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/libswscale/swscale_unscaled.c b/libswscale/swscale_unscaled.c index 5fb572b51a..563de39696 100644 --- a/libswscale/swscale_unscaled.c +++ b/libswscale/swscale_unscaled.c @@ -1326,6 +1326,55 @@ static int bayer_to_rgb24_wrapper(SwsContext *c, const uint8_t* src[], int srcSt return srcSliceH; } +static int bayer_to_rgb48_wrapper(SwsContext *c, const uint8_t* src[], int srcStride[], int srcSliceY, + int srcSliceH, uint8_t* dst[], int dstStride[]) +{ + uint8_t *dstPtr= dst[0] + srcSliceY * dstStride[0]; + const uint8_t *srcPtr= src[0]; + int i; + void (*copy) (const uint8_t *src, int src_stride, uint8_t *dst, int dst_stride, int width); + void (*interpolate)(const uint8_t *src, int src_stride, uint8_t *dst, int dst_stride, int width); + + switch(c->srcFormat) { +#define CASE(pixfmt, prefix) \ + case pixfmt: copy = bayer_##prefix##_to_rgb48_copy; \ + interpolate = bayer_##prefix##_to_rgb48_interpolate; \ + break; + CASE(AV_PIX_FMT_BAYER_BGGR8, bggr8) + CASE(AV_PIX_FMT_BAYER_BGGR16LE, bggr16le) + CASE(AV_PIX_FMT_BAYER_BGGR16BE, bggr16be) + CASE(AV_PIX_FMT_BAYER_RGGB8, rggb8) + CASE(AV_PIX_FMT_BAYER_RGGB16LE, rggb16le) + CASE(AV_PIX_FMT_BAYER_RGGB16BE, rggb16be) + CASE(AV_PIX_FMT_BAYER_GBRG8, gbrg8) + CASE(AV_PIX_FMT_BAYER_GBRG16LE, gbrg16le) + CASE(AV_PIX_FMT_BAYER_GBRG16BE, gbrg16be) + CASE(AV_PIX_FMT_BAYER_GRBG8, grbg8) + CASE(AV_PIX_FMT_BAYER_GRBG16LE, grbg16le) + CASE(AV_PIX_FMT_BAYER_GRBG16BE, grbg16be) +#undef CASE + default: return 0; + } + + av_assert0(srcSliceH > 1); + + copy(srcPtr, srcStride[0], dstPtr, dstStride[0], c->srcW); + srcPtr += 2 * srcStride[0]; + dstPtr += 2 * dstStride[0]; + + for (i = 2; i < srcSliceH - 2; i += 2) { + interpolate(srcPtr, srcStride[0], dstPtr, dstStride[0], c->srcW); + srcPtr += 2 * srcStride[0]; + dstPtr += 2 * dstStride[0]; + } + + if (i + 1 == srcSliceH) { + copy(srcPtr, -srcStride[0], dstPtr, -dstStride[0], c->srcW); + } else if (i < srcSliceH) + copy(srcPtr, srcStride[0], dstPtr, dstStride[0], c->srcW); + return srcSliceH; +} + static int bayer_to_yv12_wrapper(SwsContext *c, const uint8_t* src[], int srcStride[], int srcSliceY, int srcSliceH, uint8_t* dst[], int dstStride[]) { @@ -2047,6 +2096,8 @@ void ff_get_unscaled_swscale(SwsContext *c) if (isBayer(srcFormat)) { if (dstFormat == AV_PIX_FMT_RGB24) c->swscale = bayer_to_rgb24_wrapper; + else if (dstFormat == AV_PIX_FMT_RGB48) + c->swscale = bayer_to_rgb48_wrapper; else if (dstFormat == AV_PIX_FMT_YUV420P) c->swscale = bayer_to_yv12_wrapper; else if (!isBayer(dstFormat)) { |