[FFmpeg-cvslog] swscale: GBRP output support
Michael Niedermayer
git at videolan.org
Mon Jan 28 14:19:07 CET 2013
ffmpeg | branch: master | Michael Niedermayer <michaelni at gmx.at> | Fri Jan 25 21:51:25 2013 +0100| [4eb93bed4e9b6daca7d3dd716a7517cd53dd5a95] | committer: Derek Buitenhuis
swscale: GBRP output support
Signed-off-by: Michael Niedermayer <michaelni at gmx.at>
Signed-off-by: Derek Buitenhuis <derek.buitenhuis at gmail.com>
> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=4eb93bed4e9b6daca7d3dd716a7517cd53dd5a95
---
libswscale/output.c | 67 ++++++++++++++++++++++++++++++++++++++++-
libswscale/swscale.c | 13 ++++++--
libswscale/swscale_internal.h | 38 ++++++++++++++++++++++-
libswscale/utils.c | 13 +++++++-
tests/ref/lavfi/pixdesc | 1 +
tests/ref/lavfi/pixfmts_copy | 1 +
tests/ref/lavfi/pixfmts_null | 1 +
tests/ref/lavfi/pixfmts_scale | 1 +
tests/ref/lavfi/pixfmts_vflip | 1 +
9 files changed, 130 insertions(+), 6 deletions(-)
diff --git a/libswscale/output.c b/libswscale/output.c
index 4953290..4ea2e48 100644
--- a/libswscale/output.c
+++ b/libswscale/output.c
@@ -1261,13 +1261,75 @@ YUV2RGBWRAPPERX(yuv2, rgb_full, xrgb32_full, AV_PIX_FMT_ARGB, 0)
YUV2RGBWRAPPERX(yuv2, rgb_full, bgr24_full, AV_PIX_FMT_BGR24, 0)
YUV2RGBWRAPPERX(yuv2, rgb_full, rgb24_full, AV_PIX_FMT_RGB24, 0)
+static void
+yuv2gbrp_full_X_c(SwsContext *c, const int16_t *lumFilter,
+ const int16_t **lumSrc, int lumFilterSize,
+ const int16_t *chrFilter, const int16_t **chrUSrc,
+ const int16_t **chrVSrc, int chrFilterSize,
+ const int16_t **alpSrc, uint8_t **dest,
+ int dstW, int y)
+{
+ int i;
+ int hasAlpha = 0;
+
+ for (i = 0; i < dstW; i++) {
+ int j;
+ int Y = 1 << 9;
+ int U = (1 << 9) - (128 << 19);
+ int V = (1 << 9) - (128 << 19);
+ int R, G, B, A;
+
+ for (j = 0; j < lumFilterSize; j++)
+ Y += lumSrc[j][i] * lumFilter[j];
+
+ for (j = 0; j < chrFilterSize; j++) {
+ U += chrUSrc[j][i] * chrFilter[j];
+ V += chrVSrc[j][i] * chrFilter[j];
+ }
+
+ Y >>= 10;
+ U >>= 10;
+ V >>= 10;
+
+ if (hasAlpha) {
+ A = 1 << 18;
+
+ for (j = 0; j < lumFilterSize; j++)
+ A += alpSrc[j][i] * lumFilter[j];
+
+ A >>= 19;
+
+ if (A & 0x100)
+ A = av_clip_uint8(A);
+ }
+
+ Y -= c->yuv2rgb_y_offset;
+ Y *= c->yuv2rgb_y_coeff;
+ Y += 1 << 21;
+ R = Y + V * c->yuv2rgb_v2r_coeff;
+ G = Y + V * c->yuv2rgb_v2g_coeff + U * c->yuv2rgb_u2g_coeff;
+ B = Y + U * c->yuv2rgb_u2b_coeff;
+
+ if ((R | G | B) & 0xC0000000) {
+ R = av_clip_uintp2(R, 30);
+ G = av_clip_uintp2(G, 30);
+ B = av_clip_uintp2(B, 30);
+ }
+
+ dest[0][i] = G >> 22;
+ dest[1][i] = B >> 22;
+ dest[2][i] = R >> 22;
+ }
+}
+
av_cold void ff_sws_init_output_funcs(SwsContext *c,
yuv2planar1_fn *yuv2plane1,
yuv2planarX_fn *yuv2planeX,
yuv2interleavedX_fn *yuv2nv12cX,
yuv2packed1_fn *yuv2packed1,
yuv2packed2_fn *yuv2packed2,
- yuv2packedX_fn *yuv2packedX)
+ yuv2packedX_fn *yuv2packedX,
+ yuv2anyX_fn *yuv2anyX)
{
enum AVPixelFormat dstFormat = c->dstFormat;
const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(dstFormat);
@@ -1354,6 +1416,9 @@ av_cold void ff_sws_init_output_funcs(SwsContext *c,
case AV_PIX_FMT_BGR24:
*yuv2packedX = yuv2bgr24_full_X_c;
break;
+ case AV_PIX_FMT_GBRP:
+ *yuv2anyX = yuv2gbrp_full_X_c;
+ break;
}
} else {
switch (dstFormat) {
diff --git a/libswscale/swscale.c b/libswscale/swscale.c
index dac8b37..4fb6d6c 100644
--- a/libswscale/swscale.c
+++ b/libswscale/swscale.c
@@ -380,6 +380,7 @@ static int swScale(SwsContext *c, const uint8_t *src[],
yuv2packed1_fn yuv2packed1 = c->yuv2packed1;
yuv2packed2_fn yuv2packed2 = c->yuv2packed2;
yuv2packedX_fn yuv2packedX = c->yuv2packedX;
+ yuv2anyX_fn yuv2anyX = c->yuv2anyX;
const int chrSrcSliceY = srcSliceY >> c->chrSrcVSubSample;
const int chrSrcSliceH = -((-srcSliceH) >> c->chrSrcVSubSample);
int should_dither = is9_OR_10BPS(c->srcFormat) ||
@@ -554,7 +555,7 @@ static int swScale(SwsContext *c, const uint8_t *src[],
/* hmm looks like we can't use MMX here without overwriting
* this array's tail */
ff_sws_init_output_funcs(c, &yuv2plane1, &yuv2planeX, &yuv2nv12cX,
- &yuv2packed1, &yuv2packed2, &yuv2packedX);
+ &yuv2packed1, &yuv2packed2, &yuv2packedX, &yuv2anyX);
}
{
@@ -651,7 +652,7 @@ static int swScale(SwsContext *c, const uint8_t *src[],
dstW, c->lumDither8, 0);
}
}
- } else {
+ } else if (yuv2packedX) {
if (c->yuv2packed1 && vLumFilterSize == 1 &&
vChrFilterSize <= 2) { // unscaled RGB
int chrAlpha = vChrFilterSize == 1 ? 0 : vChrFilter[2 * dstY + 1];
@@ -676,6 +677,12 @@ static int swScale(SwsContext *c, const uint8_t *src[],
chrUSrcPtr, chrVSrcPtr, vChrFilterSize,
alpSrcPtr, dest[0], dstW, dstY);
}
+ } else {
+ yuv2anyX(c, vLumFilter + dstY * vLumFilterSize,
+ lumSrcPtr, vLumFilterSize,
+ vChrFilter + dstY * vChrFilterSize,
+ chrUSrcPtr, chrVSrcPtr, vChrFilterSize,
+ alpSrcPtr, dest, dstW, dstY);
}
}
}
@@ -717,7 +724,7 @@ static av_cold void sws_init_swScale_c(SwsContext *c)
ff_sws_init_output_funcs(c, &c->yuv2plane1, &c->yuv2planeX,
&c->yuv2nv12cX, &c->yuv2packed1,
- &c->yuv2packed2, &c->yuv2packedX);
+ &c->yuv2packed2, &c->yuv2packedX, &c->yuv2anyX);
ff_sws_init_input_funcs(c);
diff --git a/libswscale/swscale_internal.h b/libswscale/swscale_internal.h
index 8752672..f9f023f 100644
--- a/libswscale/swscale_internal.h
+++ b/libswscale/swscale_internal.h
@@ -218,6 +218,40 @@ typedef void (*yuv2packedX_fn)(struct SwsContext *c, const int16_t *lumFilter,
const int16_t **alpSrc, uint8_t *dest,
int dstW, int y);
+/**
+ * Write one line of horizontally scaled Y/U/V/A to YUV/RGB
+ * output by doing multi-point vertical scaling between input pixels.
+ *
+ * @param c SWS scaling context
+ * @param lumFilter vertical luma/alpha scaling coefficients, 12bit [0,4096]
+ * @param lumSrc scaled luma (Y) source data, 15bit for 8-10bit output,
+ * 19-bit for 16bit output (in int32_t)
+ * @param lumFilterSize number of vertical luma/alpha input lines to scale
+ * @param chrFilter vertical chroma scaling coefficients, 12bit [0,4096]
+ * @param chrUSrc scaled chroma (U) source data, 15bit for 8-10bit output,
+ * 19-bit for 16bit output (in int32_t)
+ * @param chrVSrc scaled chroma (V) source data, 15bit for 8-10bit output,
+ * 19-bit for 16bit output (in int32_t)
+ * @param chrFilterSize number of vertical chroma input lines to scale
+ * @param alpSrc scaled alpha (A) source data, 15bit for 8-10bit output,
+ * 19-bit for 16bit output (in int32_t)
+ * @param dest pointer to the output planes. For 16bit output, this is
+ * uint16_t
+ * @param dstW width of lumSrc and alpSrc in pixels, number of pixels
+ * to write into dest[]
+ * @param y vertical line number for this output. This does not need
+ * to be used to calculate the offset in the destination,
+ * but can be used to generate comfort noise using dithering
+ * or some output formats.
+ */
+typedef void (*yuv2anyX_fn)(struct SwsContext *c, const int16_t *lumFilter,
+ const int16_t **lumSrc, int lumFilterSize,
+ const int16_t *chrFilter,
+ const int16_t **chrUSrc,
+ const int16_t **chrVSrc, int chrFilterSize,
+ const int16_t **alpSrc, uint8_t **dest,
+ int dstW, int y);
+
/* This struct should be aligned on at least a 32-byte boundary. */
typedef struct SwsContext {
/**
@@ -427,6 +461,7 @@ typedef struct SwsContext {
yuv2packed1_fn yuv2packed1;
yuv2packed2_fn yuv2packed2;
yuv2packedX_fn yuv2packedX;
+ yuv2anyX_fn yuv2anyX;
/// Unscaled conversion of luma plane to YV12 for horizontal scaler.
void (*lumToYV12)(uint8_t *dst, const uint8_t *src,
@@ -708,7 +743,8 @@ void ff_sws_init_output_funcs(SwsContext *c,
yuv2interleavedX_fn *yuv2nv12cX,
yuv2packed1_fn *yuv2packed1,
yuv2packed2_fn *yuv2packed2,
- yuv2packedX_fn *yuv2packedX);
+ yuv2packedX_fn *yuv2packedX,
+ yuv2anyX_fn *yuv2anyX);
void ff_sws_init_swScale_altivec(SwsContext *c);
void ff_sws_init_swScale_mmx(SwsContext *c);
diff --git a/libswscale/utils.c b/libswscale/utils.c
index f0a2b46..a65922b 100644
--- a/libswscale/utils.c
+++ b/libswscale/utils.c
@@ -163,7 +163,7 @@ static const FormatEntry format_entries[AV_PIX_FMT_NB] = {
[AV_PIX_FMT_YUV444P9LE] = { 1, 1 },
[AV_PIX_FMT_YUV444P10BE] = { 1, 1 },
[AV_PIX_FMT_YUV444P10LE] = { 1, 1 },
- [AV_PIX_FMT_GBRP] = { 1, 0 },
+ [AV_PIX_FMT_GBRP] = { 1, 1 },
[AV_PIX_FMT_GBRP9LE] = { 1, 0 },
[AV_PIX_FMT_GBRP9BE] = { 1, 0 },
[AV_PIX_FMT_GBRP10LE] = { 1, 0 },
@@ -938,10 +938,21 @@ av_cold int sws_init_context(SwsContext *c, SwsFilter *srcFilter,
getSubSampleFactors(&c->chrSrcHSubSample, &c->chrSrcVSubSample, srcFormat);
getSubSampleFactors(&c->chrDstHSubSample, &c->chrDstVSubSample, dstFormat);
+ if (dstFormat == AV_PIX_FMT_GBRP) {
+ if (!(flags & SWS_FULL_CHR_H_INT)) {
+ av_log(c, AV_LOG_DEBUG,
+ "%s output is not supported with half chroma resolution, switching to full\n",
+ av_get_pix_fmt_name(dstFormat));
+ flags |= SWS_FULL_CHR_H_INT;
+ c->flags = flags;
+ }
+ }
+
/* reuse chroma for 2 pixels RGB/BGR unless user wants full
* chroma interpolation */
if (flags & SWS_FULL_CHR_H_INT &&
isAnyRGB(dstFormat) &&
+ dstFormat != AV_PIX_FMT_GBRP &&
dstFormat != AV_PIX_FMT_RGBA &&
dstFormat != AV_PIX_FMT_ARGB &&
dstFormat != AV_PIX_FMT_BGRA &&
diff --git a/tests/ref/lavfi/pixdesc b/tests/ref/lavfi/pixdesc
index d1ccbbc..eaf0b78 100644
--- a/tests/ref/lavfi/pixdesc
+++ b/tests/ref/lavfi/pixdesc
@@ -12,6 +12,7 @@ bgr565be 257cf78afa35dc31e9696f139c916715
bgr565le 1dfdd03995c287e3c754b164bf26a355
bgr8 24bd566170343d06fec6fccfff5abc54
bgra 76a18a5151242fa137133f604cd624d2
+gbrp 76204621e200a3cc633012f6720c7005
gray db08f7f0751900347e6b8649e4164d21
gray16be 7becf34ae825a3df3969bf4c6bfeb5e2
gray16le 10bd87059b5c189f3caef2837f4f2b5c
diff --git a/tests/ref/lavfi/pixfmts_copy b/tests/ref/lavfi/pixfmts_copy
index d1ccbbc..eaf0b78 100644
--- a/tests/ref/lavfi/pixfmts_copy
+++ b/tests/ref/lavfi/pixfmts_copy
@@ -12,6 +12,7 @@ bgr565be 257cf78afa35dc31e9696f139c916715
bgr565le 1dfdd03995c287e3c754b164bf26a355
bgr8 24bd566170343d06fec6fccfff5abc54
bgra 76a18a5151242fa137133f604cd624d2
+gbrp 76204621e200a3cc633012f6720c7005
gray db08f7f0751900347e6b8649e4164d21
gray16be 7becf34ae825a3df3969bf4c6bfeb5e2
gray16le 10bd87059b5c189f3caef2837f4f2b5c
diff --git a/tests/ref/lavfi/pixfmts_null b/tests/ref/lavfi/pixfmts_null
index d1ccbbc..eaf0b78 100644
--- a/tests/ref/lavfi/pixfmts_null
+++ b/tests/ref/lavfi/pixfmts_null
@@ -12,6 +12,7 @@ bgr565be 257cf78afa35dc31e9696f139c916715
bgr565le 1dfdd03995c287e3c754b164bf26a355
bgr8 24bd566170343d06fec6fccfff5abc54
bgra 76a18a5151242fa137133f604cd624d2
+gbrp 76204621e200a3cc633012f6720c7005
gray db08f7f0751900347e6b8649e4164d21
gray16be 7becf34ae825a3df3969bf4c6bfeb5e2
gray16le 10bd87059b5c189f3caef2837f4f2b5c
diff --git a/tests/ref/lavfi/pixfmts_scale b/tests/ref/lavfi/pixfmts_scale
index e53580c..f2cdc95 100644
--- a/tests/ref/lavfi/pixfmts_scale
+++ b/tests/ref/lavfi/pixfmts_scale
@@ -12,6 +12,7 @@ bgr565be 922a2503767036ae9536f4f7823c04ee
bgr565le 3a514a298c6161a071ddf9963c06509d
bgr8 7f007fa6c153a16e808a9c51605a4016
bgra a5e7040f9a80cccd65e5acf2ca09ace5
+gbrp 205c50f8359cb4ba2827a7711dea2cc6
gray d7786a7d9d99ac74230cc045cab5632c
gray16be b554d6c1cc8da23967445be4dd3e4a86
gray16le 715a33aa1c19cb26b14f5cc000e7a3d1
diff --git a/tests/ref/lavfi/pixfmts_vflip b/tests/ref/lavfi/pixfmts_vflip
index 9fd8bf6..8f61e7a 100644
--- a/tests/ref/lavfi/pixfmts_vflip
+++ b/tests/ref/lavfi/pixfmts_vflip
@@ -12,6 +12,7 @@ bgr565be f19e9a4786395e1ddcd51399c98c9f6c
bgr565le fdb617533e1e7ff512ea5b6b6233e738
bgr8 c60f93fd152c6903391d1fe9decd3547
bgra 7f9b799fb48544e49ce93e91d7f9fca8
+gbrp 25c1bce192daefab910d51a56b52199e
gray 30d9014a9d43b5f37e7aa64be3a3ecfc
gray16be 6b84b85d3326182fa1217e138249edc5
gray16le 66bb8faa09dc149734aca3c768a6d4e1
More information about the ffmpeg-cvslog
mailing list