diff options
Diffstat (limited to 'v4l2-apps/libv4l/libv4lconvert/spca501.c')
| -rw-r--r-- | v4l2-apps/libv4l/libv4lconvert/spca501.c | 36 |
1 files changed, 27 insertions, 9 deletions
diff --git a/v4l2-apps/libv4l/libv4lconvert/spca501.c b/v4l2-apps/libv4l/libv4lconvert/spca501.c index 9157629e3..f491512e3 100644 --- a/v4l2-apps/libv4l/libv4lconvert/spca501.c +++ b/v4l2-apps/libv4l/libv4lconvert/spca501.c @@ -20,7 +20,7 @@ /* YUYV per line */ void v4lconvert_spca501_to_yuv420(const unsigned char *src, unsigned char *dst, - int width, int height) + int width, int height, int yvu) { int i,j; unsigned long *lsrc = (unsigned long *)src; @@ -34,7 +34,10 @@ void v4lconvert_spca501_to_yuv420(const unsigned char *src, unsigned char *dst, } /* -128 - 127 --> 0 - 255 and copy 1 line U */ - ldst = (unsigned long *)(dst + width * height + i * width / 4); + if (yvu) + ldst = (unsigned long *)(dst + (width * height * 5) / 4 + i * width / 4); + else + ldst = (unsigned long *)(dst + width * height + i * width / 4); for (j = 0; j < width/2; j += sizeof(long)) { *ldst = *lsrc++; *ldst++ ^= 0x8080808080808080ULL; @@ -48,7 +51,10 @@ void v4lconvert_spca501_to_yuv420(const unsigned char *src, unsigned char *dst, } /* -128 - 127 --> 0 - 255 and copy 1 line V */ - ldst = (unsigned long *)(dst + (width * height * 5) / 4 + i * width / 4); + if (yvu) + ldst = (unsigned long *)(dst + width * height + i * width / 4); + else + ldst = (unsigned long *)(dst + (width * height * 5) / 4 + i * width / 4); for (j = 0; j < width/2; j += sizeof(long)) { *ldst = *lsrc++; *ldst++ ^= 0x8080808080808080ULL; @@ -58,7 +64,7 @@ void v4lconvert_spca501_to_yuv420(const unsigned char *src, unsigned char *dst, /* YYUV per line */ void v4lconvert_spca505_to_yuv420(const unsigned char *src, unsigned char *dst, - int width, int height) + int width, int height, int yvu) { int i,j; unsigned long *lsrc = (unsigned long *)src; @@ -72,14 +78,20 @@ void v4lconvert_spca505_to_yuv420(const unsigned char *src, unsigned char *dst, } /* -128 - 127 --> 0 - 255 and copy 1 line U */ - ldst = (unsigned long *)(dst + width * height + i * width / 4); + if (yvu) + ldst = (unsigned long *)(dst + (width * height * 5) / 4 + i * width / 4); + else + ldst = (unsigned long *)(dst + width * height + i * width / 4); for (j = 0; j < width/2; j += sizeof(long)) { *ldst = *lsrc++; *ldst++ ^= 0x8080808080808080ULL; } /* -128 - 127 --> 0 - 255 and copy 1 line V */ - ldst = (unsigned long *)(dst + (width * height * 5) / 4 + i * width / 4); + if (yvu) + ldst = (unsigned long *)(dst + width * height + i * width / 4); + else + ldst = (unsigned long *)(dst + (width * height * 5) / 4 + i * width / 4); for (j = 0; j < width/2; j += sizeof(long)) { *ldst = *lsrc++; *ldst++ ^= 0x8080808080808080ULL; @@ -89,7 +101,7 @@ void v4lconvert_spca505_to_yuv420(const unsigned char *src, unsigned char *dst, /* YUVY per line */ void v4lconvert_spca508_to_yuv420(const unsigned char *src, unsigned char *dst, - int width, int height) + int width, int height, int yvu) { int i,j; unsigned long *lsrc = (unsigned long *)src; @@ -103,14 +115,20 @@ void v4lconvert_spca508_to_yuv420(const unsigned char *src, unsigned char *dst, } /* -128 - 127 --> 0 - 255 and copy 1 line U */ - ldst = (unsigned long *)(dst + width * height + i * width / 4); + if (yvu) + ldst = (unsigned long *)(dst + (width * height * 5) / 4 + i * width / 4); + else + ldst = (unsigned long *)(dst + width * height + i * width / 4); for (j = 0; j < width/2; j += sizeof(long)) { *ldst = *lsrc++; *ldst++ ^= 0x8080808080808080ULL; } /* -128 - 127 --> 0 - 255 and copy 1 line V */ - ldst = (unsigned long *)(dst + (width * height * 5) / 4 + i * width / 4); + if (yvu) + ldst = (unsigned long *)(dst + width * height + i * width / 4); + else + ldst = (unsigned long *)(dst + (width * height * 5) / 4 + i * width / 4); for (j = 0; j < width/2; j += sizeof(long)) { *ldst = *lsrc++; *ldst++ ^= 0x8080808080808080ULL; |