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Unscaled 16bit packed RGB to planar GBR converter. 

Fixes r210(rgb48) -> ffv1 (gbrp10) -> r210 roundtrip
as reported by forum user JasonCA.
This commit is contained in:
Carl Eugen Hoyos 2014-01-10 10:47:46 +01:00
parent 34e90b2e6d
commit 693a36b6f8
1 changed files with 198 additions and 0 deletions
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198
libswscale/swscale_unscaled.c
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@ -410,6 +410,192 @@ static int palToRgbWrapper(SwsContext *c, const uint8_t *src[], int srcStride[],
return srcSliceH;
}
static void packed16togbra16(const uint8_t *src, int srcStride,
uint16_t *dst[], int dstStride[], int srcSliceH,
int src_alpha, int swap, int shift, int width)
{
int x, h, i;
int dst_alpha = dst[3] != NULL;
for (h = 0; h < srcSliceH; h++) {
uint16_t *src_line = (uint16_t *)(src + srcStride * h);
switch (swap) {
case 3:
if (src_alpha && dst_alpha) {
for (x = 0; x < width; x++) {
dst[0][x] = av_bswap16(av_bswap16(*src_line++) >> shift);
dst[1][x] = av_bswap16(av_bswap16(*src_line++) >> shift);
dst[2][x] = av_bswap16(av_bswap16(*src_line++) >> shift);
dst[3][x] = av_bswap16(av_bswap16(*src_line++) >> shift);
}
} else if (dst_alpha) {
for (x = 0; x < width; x++) {
dst[0][x] = av_bswap16(av_bswap16(*src_line++) >> shift);
dst[1][x] = av_bswap16(av_bswap16(*src_line++) >> shift);
dst[2][x] = av_bswap16(av_bswap16(*src_line++) >> shift);
dst[3][x] = 0xFFFF;
}
} else if (src_alpha) {
for (x = 0; x < width; x++) {
dst[0][x] = av_bswap16(av_bswap16(*src_line++) >> shift);
dst[1][x] = av_bswap16(av_bswap16(*src_line++) >> shift);
dst[2][x] = av_bswap16(av_bswap16(*src_line++) >> shift);
src_line++;
}
} else {
for (x = 0; x < width; x++) {
dst[0][x] = av_bswap16(av_bswap16(*src_line++) >> shift);
dst[1][x] = av_bswap16(av_bswap16(*src_line++) >> shift);
dst[2][x] = av_bswap16(av_bswap16(*src_line++) >> shift);
}
}
break;
case 2:
if (src_alpha && dst_alpha) {
for (x = 0; x < width; x++) {
dst[0][x] = av_bswap16(*src_line++ >> shift);
dst[1][x] = av_bswap16(*src_line++ >> shift);
dst[2][x] = av_bswap16(*src_line++ >> shift);
dst[3][x] = av_bswap16(*src_line++ >> shift);
}
} else if (dst_alpha) {
for (x = 0; x < width; x++) {
dst[0][x] = av_bswap16(*src_line++ >> shift);
dst[1][x] = av_bswap16(*src_line++ >> shift);
dst[2][x] = av_bswap16(*src_line++ >> shift);
dst[3][x] = 0xFFFF;
}
} else if (src_alpha) {
for (x = 0; x < width; x++) {
dst[0][x] = av_bswap16(*src_line++ >> shift);
dst[1][x] = av_bswap16(*src_line++ >> shift);
dst[2][x] = av_bswap16(*src_line++ >> shift);
src_line++;
}
} else {
for (x = 0; x < width; x++) {
dst[0][x] = av_bswap16(*src_line++ >> shift);
dst[1][x] = av_bswap16(*src_line++ >> shift);
dst[2][x] = av_bswap16(*src_line++ >> shift);
}
}
break;
case 1:
if (src_alpha && dst_alpha) {
for (x = 0; x < width; x++) {
dst[0][x] = av_bswap16(*src_line++) >> shift;
dst[1][x] = av_bswap16(*src_line++) >> shift;
dst[2][x] = av_bswap16(*src_line++) >> shift;
dst[3][x] = av_bswap16(*src_line++) >> shift;
}
} else if (dst_alpha) {
for (x = 0; x < width; x++) {
dst[0][x] = av_bswap16(*src_line++) >> shift;
dst[1][x] = av_bswap16(*src_line++) >> shift;
dst[2][x] = av_bswap16(*src_line++) >> shift;
dst[3][x] = 0xFFFF;
}
} else if (src_alpha) {
for (x = 0; x < width; x++) {
dst[0][x] = av_bswap16(*src_line++) >> shift;
dst[1][x] = av_bswap16(*src_line++) >> shift;
dst[2][x] = av_bswap16(*src_line++) >> shift;
src_line++;
}
} else {
for (x = 0; x < width; x++) {
dst[0][x] = av_bswap16(*src_line++) >> shift;
dst[1][x] = av_bswap16(*src_line++) >> shift;
dst[2][x] = av_bswap16(*src_line++) >> shift;
}
}
break;
default:
if (src_alpha && dst_alpha) {
for (x = 0; x < width; x++) {
dst[0][x] = *src_line++ >> shift;
dst[1][x] = *src_line++ >> shift;
dst[2][x] = *src_line++ >> shift;
dst[3][x] = *src_line++ >> shift;
}
} else if (dst_alpha) {
for (x = 0; x < width; x++) {
dst[0][x] = *src_line++ >> shift;
dst[1][x] = *src_line++ >> shift;
dst[2][x] = *src_line++ >> shift;
dst[3][x] = 0xFFFF;
}
} else if (src_alpha) {
for (x = 0; x < width; x++) {
dst[0][x] = *src_line++ >> shift;
dst[1][x] = *src_line++ >> shift;
dst[2][x] = *src_line++ >> shift;
src_line++;
}
} else {
for (x = 0; x < width; x++) {
dst[0][x] = *src_line++ >> shift;
dst[1][x] = *src_line++ >> shift;
dst[2][x] = *src_line++ >> shift;
}
}
}
for (i = 0; i < 4; i++)
dst[i] += dstStride[i] >> 1;
}
}
static int Rgb16ToPlanarRgb16Wrapper(SwsContext *c, const uint8_t *src[],
int srcStride[], int srcSliceY, int srcSliceH,
uint8_t *dst[], int dstStride[])
{
uint16_t *dst2013[] = { (uint16_t *)dst[2], (uint16_t *)dst[0], (uint16_t *)dst[1], (uint16_t *)dst[3] };
uint16_t *dst1023[] = { (uint16_t *)dst[1], (uint16_t *)dst[0], (uint16_t *)dst[2], (uint16_t *)dst[3] };
int stride2013[] = { dstStride[2], dstStride[0], dstStride[1], dstStride[3] };
int stride1023[] = { dstStride[1], dstStride[0], dstStride[2], dstStride[3] };
const AVPixFmtDescriptor *src_format = av_pix_fmt_desc_get(c->srcFormat);
const AVPixFmtDescriptor *dst_format = av_pix_fmt_desc_get(c->dstFormat);
int bpc = dst_format->comp[0].depth_minus1 + 1;
int alpha = src_format->flags & AV_PIX_FMT_FLAG_ALPHA;
int swap = 0;
if ( HAVE_BIGENDIAN && !(src_format->flags & AV_PIX_FMT_FLAG_BE) ||
!HAVE_BIGENDIAN && src_format->flags & AV_PIX_FMT_FLAG_BE)
swap++;
if ( HAVE_BIGENDIAN && !(dst_format->flags & AV_PIX_FMT_FLAG_BE) ||
!HAVE_BIGENDIAN && dst_format->flags & AV_PIX_FMT_FLAG_BE)
swap += 2;
if ((dst_format->flags & (AV_PIX_FMT_FLAG_PLANAR | AV_PIX_FMT_FLAG_RGB)) !=
(AV_PIX_FMT_FLAG_PLANAR | AV_PIX_FMT_FLAG_RGB) || bpc < 9) {
av_log(c, AV_LOG_ERROR, "unsupported conversion to planar RGB %s -> %s\n",
src_format->name, dst_format->name);
return srcSliceH;
}
switch (c->srcFormat) {
case AV_PIX_FMT_RGB48LE:
case AV_PIX_FMT_RGB48BE:
case AV_PIX_FMT_RGBA64LE:
case AV_PIX_FMT_RGBA64BE:
packed16togbra16(src[0] + srcSliceY * srcStride[0], srcStride[0],
dst2013, stride2013, srcSliceH, alpha, swap,
16 - bpc, c->srcW);
break;
case AV_PIX_FMT_BGR48LE:
case AV_PIX_FMT_BGR48BE:
case AV_PIX_FMT_BGRA64LE:
case AV_PIX_FMT_BGRA64BE:
packed16togbra16(src[0] + srcSliceY * srcStride[0], srcStride[0],
dst1023, stride1023, srcSliceH, alpha, swap,
16 - bpc, c->srcW);
break;
default:
av_log(c, AV_LOG_ERROR,
"unsupported conversion to planar RGB %s -> %s\n",
src_format->name, dst_format->name);
}
return srcSliceH;
}
static void gbr16ptopacked16(const uint16_t *src[], int srcStride[],
uint8_t *dst, int dstStride, int srcSliceH,
int alpha, int swap, int bpp, int width)
@ -1277,6 +1463,18 @@ void ff_get_unscaled_swscale(SwsContext *c)
if (srcFormat == AV_PIX_FMT_GBRP && isPlanar(srcFormat) && isByteRGB(dstFormat))
c->swscale = planarRgbToRgbWrapper;
if ((srcFormat == AV_PIX_FMT_RGB48LE || srcFormat == AV_PIX_FMT_RGB48BE ||
srcFormat == AV_PIX_FMT_BGR48LE || srcFormat == AV_PIX_FMT_BGR48BE ||
srcFormat == AV_PIX_FMT_RGBA64LE || srcFormat == AV_PIX_FMT_RGBA64BE ||
srcFormat == AV_PIX_FMT_BGRA64LE || srcFormat == AV_PIX_FMT_BGRA64BE) &&
(dstFormat == AV_PIX_FMT_GBRP9LE || dstFormat == AV_PIX_FMT_GBRP9BE ||
dstFormat == AV_PIX_FMT_GBRP10LE || dstFormat == AV_PIX_FMT_GBRP10BE ||
dstFormat == AV_PIX_FMT_GBRP12LE || dstFormat == AV_PIX_FMT_GBRP12BE ||
dstFormat == AV_PIX_FMT_GBRP14LE || dstFormat == AV_PIX_FMT_GBRP14BE ||
dstFormat == AV_PIX_FMT_GBRP16LE || dstFormat == AV_PIX_FMT_GBRP16BE ||
dstFormat == AV_PIX_FMT_GBRAP16LE || dstFormat == AV_PIX_FMT_GBRAP16BE ))
c->swscale = Rgb16ToPlanarRgb16Wrapper;
if ((srcFormat == AV_PIX_FMT_GBRP9LE || srcFormat == AV_PIX_FMT_GBRP9BE ||
srcFormat == AV_PIX_FMT_GBRP16LE || srcFormat == AV_PIX_FMT_GBRP16BE ||
srcFormat == AV_PIX_FMT_GBRP10LE || srcFormat == AV_PIX_FMT_GBRP10BE ||