* [FFmpeg-devel] [PATCH] avfilter/scale_cuda: Add support for 4:2:2 chroma subsampling (PR #20562)
@ 2025-09-20 16:02 Timo Rothenpieler via ffmpeg-devel
0 siblings, 0 replies; only message in thread
From: Timo Rothenpieler via ffmpeg-devel @ 2025-09-20 16:02 UTC (permalink / raw)
To: ffmpeg-devel; +Cc: Timo Rothenpieler
PR #20562 opened by Timo Rothenpieler (BtbN)
URL: https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/20562
Patch URL: https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/20562.patch
This is forwarded from https://lists.ffmpeg.org/lore/ffmpeg-devel/20250703142520.16586-1-ddesouza@nvidia.com/T/#u so it doesn't get lost/forgotten again and is easier to review.
>From 6bf26526ecaf7a9f45c5d9283d873202d9f08dde Mon Sep 17 00:00:00 2001
From: Diego de Souza <ddesouza@nvidia.com>
Date: Thu, 3 Jul 2025 16:25:18 +0200
Subject: [PATCH 1/3] avutil/hwcontext_cuda: Expands pixel formats support
Add support for additional pixel formats in CUDA hardware context:
- Planar formats (yuv420p10, yuv422p, yuv422p10, yuv444p10)
- Semiplanar formats (nv16, p210, p216)
Signed-off-by: Diego de Souza <ddesouza@nvidia.com>
---
libavutil/hwcontext_cuda.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/libavutil/hwcontext_cuda.c b/libavutil/hwcontext_cuda.c
index 10d3399537..b0b65b2446 100644
--- a/libavutil/hwcontext_cuda.c
+++ b/libavutil/hwcontext_cuda.c
@@ -50,6 +50,10 @@ static const enum AVPixelFormat supported_formats[] = {
AV_PIX_FMT_P016,
AV_PIX_FMT_P210,
AV_PIX_FMT_P216,
+ AV_PIX_FMT_YUV422P,
+ AV_PIX_FMT_YUV420P10,
+ AV_PIX_FMT_YUV422P10,
+ AV_PIX_FMT_YUV444P10,
AV_PIX_FMT_YUV444P10MSB,
AV_PIX_FMT_YUV444P12MSB,
AV_PIX_FMT_YUV444P16,
--
2.49.1
>From 1a65d9bd7fc19ee57988acf23458646142e36501 Mon Sep 17 00:00:00 2001
From: Diego de Souza <ddesouza@nvidia.com>
Date: Thu, 3 Jul 2025 16:25:19 +0200
Subject: [PATCH 2/3] avfilter/hwupload_cuda: Expands pixel formats support
Add support for uploading additional pixel formats to NVIDIA GPUs:
- Planar formats (yuv420p10, yuv422p, yuv422p10, yuv444p10)
- Semiplanar formats (nv16, p210, p216)
Signed-off-by: Diego de Souza <ddesouza@nvidia.com>
---
libavfilter/vf_hwupload_cuda.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/libavfilter/vf_hwupload_cuda.c b/libavfilter/vf_hwupload_cuda.c
index b505f8b298..34f959ca50 100644
--- a/libavfilter/vf_hwupload_cuda.c
+++ b/libavfilter/vf_hwupload_cuda.c
@@ -59,9 +59,9 @@ static int cudaupload_query_formats(const AVFilterContext *ctx,
int ret;
static const enum AVPixelFormat input_pix_fmts[] = {
- AV_PIX_FMT_NV12, AV_PIX_FMT_YUV420P, AV_PIX_FMT_YUVA420P, AV_PIX_FMT_YUV444P,
- AV_PIX_FMT_P010, AV_PIX_FMT_P016, AV_PIX_FMT_YUV444P16,
- AV_PIX_FMT_0RGB32, AV_PIX_FMT_0BGR32,
+ AV_PIX_FMT_NV12, AV_PIX_FMT_YUV420P, AV_PIX_FMT_YUVA420P, AV_PIX_FMT_NV16, AV_PIX_FMT_YUV422P, AV_PIX_FMT_YUV444P,
+ AV_PIX_FMT_P010, AV_PIX_FMT_P016, AV_PIX_FMT_P210, AV_PIX_FMT_P216, AV_PIX_FMT_YUV420P10, AV_PIX_FMT_YUV422P10, AV_PIX_FMT_YUV444P10, AV_PIX_FMT_YUV444P16,
+ AV_PIX_FMT_0RGB32, AV_PIX_FMT_0BGR32, AV_PIX_FMT_RGB32, AV_PIX_FMT_BGR32,
#if CONFIG_VULKAN
AV_PIX_FMT_VULKAN,
#endif
--
2.49.1
>From 8377c8d5baa4dbb54661cc25477ac0592eefa034 Mon Sep 17 00:00:00 2001
From: Diego de Souza <ddesouza@nvidia.com>
Date: Thu, 3 Jul 2025 16:25:20 +0200
Subject: [PATCH 3/3] avfilter/scale_cuda: Add support for 4:2:2 chroma
subsampling
The supported YUV pixel formats were separated between planar
and semiplanar. This approach reduces the number of CUDA kernels
for all pixel formats.
This patch:
1. Adds support for YUV 4:2:2 planar and semi-planar formats:
yuv422p, yuv422p10, nv16, p210, p216
2. Implements new conversion structures and kernel definitions
for planar and semi-planar formats
Signed-off-by: Diego de Souza <ddesouza@nvidia.com>
---
libavfilter/vf_scale_cuda.c | 52 +-
libavfilter/vf_scale_cuda.cu | 975 ++++++++++++++++++-----------------
2 files changed, 537 insertions(+), 490 deletions(-)
diff --git a/libavfilter/vf_scale_cuda.c b/libavfilter/vf_scale_cuda.c
index 44eef207ca..560f901730 100644
--- a/libavfilter/vf_scale_cuda.c
+++ b/libavfilter/vf_scale_cuda.c
@@ -39,17 +39,29 @@
#include "cuda/load_helper.h"
#include "vf_scale_cuda.h"
-static const enum AVPixelFormat supported_formats[] = {
- AV_PIX_FMT_YUV420P,
- AV_PIX_FMT_NV12,
- AV_PIX_FMT_YUV444P,
- AV_PIX_FMT_P010,
- AV_PIX_FMT_P016,
- AV_PIX_FMT_YUV444P16,
- AV_PIX_FMT_0RGB32,
- AV_PIX_FMT_0BGR32,
- AV_PIX_FMT_RGB32,
- AV_PIX_FMT_BGR32,
+struct format_entry {
+ enum AVPixelFormat format;
+ const char *name;
+};
+
+static const struct format_entry supported_formats[] = {
+ {AV_PIX_FMT_YUV420P, "planar8"},
+ {AV_PIX_FMT_YUV422P, "planar8"},
+ {AV_PIX_FMT_YUV444P, "planar8"},
+ {AV_PIX_FMT_YUV420P10,"planar10"},
+ {AV_PIX_FMT_YUV422P10,"planar10"},
+ {AV_PIX_FMT_YUV444P10,"planar10"},
+ {AV_PIX_FMT_YUV444P16,"planar16"},
+ {AV_PIX_FMT_NV12, "semiplanar8"},
+ {AV_PIX_FMT_NV16, "semiplanar8"},
+ {AV_PIX_FMT_P010, "semiplanar10"},
+ {AV_PIX_FMT_P210, "semiplanar10"},
+ {AV_PIX_FMT_P016, "semiplanar16"},
+ {AV_PIX_FMT_P216, "semiplanar16"},
+ {AV_PIX_FMT_0RGB32, "bgr0"},
+ {AV_PIX_FMT_0BGR32, "rgb0"},
+ {AV_PIX_FMT_RGB32, "bgra"},
+ {AV_PIX_FMT_BGR32, "rgba"},
};
#define DIV_UP(a, b) ( ((a) + (b) - 1) / (b) )
@@ -187,11 +199,21 @@ static int format_is_supported(enum AVPixelFormat fmt)
int i;
for (i = 0; i < FF_ARRAY_ELEMS(supported_formats); i++)
- if (supported_formats[i] == fmt)
+ if (supported_formats[i].format == fmt)
return 1;
return 0;
}
+static const char* get_format_name(enum AVPixelFormat fmt)
+{
+ int i;
+
+ for (i = 0; i < FF_ARRAY_ELEMS(supported_formats); i++)
+ if (supported_formats[i].format == fmt)
+ return supported_formats[i].name;
+ return NULL;
+}
+
static av_cold void set_format_info(AVFilterContext *ctx, enum AVPixelFormat in_format, enum AVPixelFormat out_format)
{
CUDAScaleContext *s = ctx->priv;
@@ -284,8 +306,8 @@ static av_cold int cudascale_load_functions(AVFilterContext *ctx)
char buf[128];
int ret;
- const char *in_fmt_name = av_get_pix_fmt_name(s->in_fmt);
- const char *out_fmt_name = av_get_pix_fmt_name(s->out_fmt);
+ const char *in_fmt_name = get_format_name(s->in_fmt);
+ const char *out_fmt_name = get_format_name(s->out_fmt);
const char *function_infix = "";
@@ -335,11 +357,13 @@ static av_cold int cudascale_load_functions(AVFilterContext *ctx)
ret = AVERROR(ENOSYS);
goto fail;
}
+ av_log(ctx, AV_LOG_DEBUG, "Luma filter: %s (%s -> %s)\n", buf, av_get_pix_fmt_name(s->in_fmt), av_get_pix_fmt_name(s->out_fmt));
snprintf(buf, sizeof(buf), "Subsample_%s_%s_%s_uv", function_infix, in_fmt_name, out_fmt_name);
ret = CHECK_CU(cu->cuModuleGetFunction(&s->cu_func_uv, s->cu_module, buf));
if (ret < 0)
goto fail;
+ av_log(ctx, AV_LOG_DEBUG, "Chroma filter: %s (%s -> %s)\n", buf, av_get_pix_fmt_name(s->in_fmt), av_get_pix_fmt_name(s->out_fmt));
fail:
CHECK_CU(cu->cuCtxPopCurrent(&dummy));
diff --git a/libavfilter/vf_scale_cuda.cu b/libavfilter/vf_scale_cuda.cu
index 271b55cd5d..62d1649a25 100644
--- a/libavfilter/vf_scale_cuda.cu
+++ b/libavfilter/vf_scale_cuda.cu
@@ -40,6 +40,11 @@ static inline __device__ ushort conv_8to16(uchar in, ushort mask)
return ((ushort)in | ((ushort)in << 8)) & mask;
}
+static inline __device__ ushort conv_8to10pl(uchar in)
+{
+ return ((ushort)in << 2) | ((ushort)in >> 6);
+}
+
static inline __device__ uchar conv_16to8(ushort in)
{
return in >> 8;
@@ -50,16 +55,31 @@ static inline __device__ uchar conv_10to8(ushort in)
return in >> 8;
}
+static inline __device__ uchar conv_10to8pl(ushort in)
+{
+ return in >> 2;
+}
+
static inline __device__ ushort conv_10to16(ushort in)
{
return in | (in >> 10);
}
+static inline __device__ ushort conv_10to16pl(ushort in)
+{
+ return (in << 6) | (in >> 4);
+}
+
static inline __device__ ushort conv_16to10(ushort in)
{
return in & mask_10bit;
}
+static inline __device__ ushort conv_16to10pl(ushort in)
+{
+ return in >> 6;
+}
+
#define DEF_F(N, T) \
template<subsample_function_t<in_T> subsample_func_y, \
subsample_function_t<in_T_uv> subsample_func_uv> \
@@ -81,9 +101,9 @@ static inline __device__ ushort conv_16to10(ushort in)
#define DEFAULT_DST(n) \
dst[n][yo*FIXED_PITCH+xo]
-// yuv420p->X
+// planar8->X
-struct Convert_yuv420p_yuv420p
+struct Convert_planar8_planar8
{
static const int in_bit_depth = 8;
typedef uchar in_T;
@@ -103,7 +123,47 @@ struct Convert_yuv420p_yuv420p
}
};
-struct Convert_yuv420p_nv12
+struct Convert_planar8_planar10
+{
+ static const int in_bit_depth = 8;
+ typedef uchar in_T;
+ typedef uchar in_T_uv;
+ typedef ushort out_T;
+ typedef ushort out_T_uv;
+
+ DEF_F(Convert, out_T)
+ {
+ DEFAULT_DST(0) = conv_8to10pl(SUB_F(y, 0));
+ }
+
+ DEF_F(Convert_uv, out_T_uv)
+ {
+ DEFAULT_DST(1) = conv_8to10pl(SUB_F(uv, 1));
+ DEFAULT_DST(2) = conv_8to10pl(SUB_F(uv, 2));
+ }
+};
+
+struct Convert_planar8_planar16
+{
+ static const int in_bit_depth = 8;
+ typedef uchar in_T;
+ typedef uchar in_T_uv;
+ typedef ushort out_T;
+ typedef ushort out_T_uv;
+
+ DEF_F(Convert, out_T)
+ {
+ DEFAULT_DST(0) = conv_8to16(SUB_F(y, 0), mask_16bit);
+ }
+
+ DEF_F(Convert_uv, out_T_uv)
+ {
+ DEFAULT_DST(1) = conv_8to16(SUB_F(uv, 1), mask_16bit);
+ DEFAULT_DST(2) = conv_8to16(SUB_F(uv, 2), mask_16bit);
+ }
+};
+
+struct Convert_planar8_semiplanar8
{
static const int in_bit_depth = 8;
typedef uchar in_T;
@@ -125,27 +185,7 @@ struct Convert_yuv420p_nv12
}
};
-struct Convert_yuv420p_yuv444p
-{
- static const int in_bit_depth = 8;
- typedef uchar in_T;
- typedef uchar in_T_uv;
- typedef uchar out_T;
- typedef uchar out_T_uv;
-
- DEF_F(Convert, out_T)
- {
- DEFAULT_DST(0) = SUB_F(y, 0);
- }
-
- DEF_F(Convert_uv, out_T_uv)
- {
- DEFAULT_DST(1) = SUB_F(uv, 1);
- DEFAULT_DST(2) = SUB_F(uv, 2);
- }
-};
-
-struct Convert_yuv420p_p010le
+struct Convert_planar8_semiplanar10
{
static const int in_bit_depth = 8;
typedef uchar in_T;
@@ -167,7 +207,7 @@ struct Convert_yuv420p_p010le
}
};
-struct Convert_yuv420p_p016le
+struct Convert_planar8_semiplanar16
{
static const int in_bit_depth = 8;
typedef uchar in_T;
@@ -189,29 +229,267 @@ struct Convert_yuv420p_p016le
}
};
-struct Convert_yuv420p_yuv444p16le
+
+
+// planar10->X
+
+struct Convert_planar10_planar8
{
- static const int in_bit_depth = 8;
- typedef uchar in_T;
- typedef uchar in_T_uv;
+ static const int in_bit_depth = 10;
+ typedef ushort in_T;
+ typedef ushort in_T_uv;
+ typedef uchar out_T;
+ typedef uchar out_T_uv;
+
+ DEF_F(Convert, out_T)
+ {
+ DEFAULT_DST(0) = conv_10to8pl(SUB_F(y, 0));
+ }
+
+ DEF_F(Convert_uv, out_T_uv)
+ {
+ DEFAULT_DST(1) = conv_10to8pl(SUB_F(uv, 1));
+ DEFAULT_DST(2) = conv_10to8pl(SUB_F(uv, 2));
+ }
+};
+
+struct Convert_planar10_planar10
+{
+ static const int in_bit_depth = 10;
+ typedef ushort in_T;
+ typedef ushort in_T_uv;
typedef ushort out_T;
typedef ushort out_T_uv;
DEF_F(Convert, out_T)
{
- DEFAULT_DST(0) = conv_8to16(SUB_F(y, 0), mask_16bit);
+ DEFAULT_DST(0) = SUB_F(y, 0);
}
DEF_F(Convert_uv, out_T_uv)
{
- DEFAULT_DST(1) = conv_8to16(SUB_F(uv, 1), mask_16bit);
- DEFAULT_DST(2) = conv_8to16(SUB_F(uv, 2), mask_16bit);
+ DEFAULT_DST(1) = SUB_F(uv, 1);
+ DEFAULT_DST(2) = SUB_F(uv, 2);
}
};
-// nv12->X
+struct Convert_planar10_planar16
+{
+ static const int in_bit_depth = 10;
+ typedef ushort in_T;
+ typedef ushort in_T_uv;
+ typedef ushort out_T;
+ typedef ushort out_T_uv;
-struct Convert_nv12_yuv420p
+ DEF_F(Convert, out_T)
+ {
+ DEFAULT_DST(0) = conv_10to16pl(SUB_F(y, 0));
+ }
+
+ DEF_F(Convert_uv, out_T_uv)
+ {
+ DEFAULT_DST(1) = conv_10to16pl(SUB_F(uv, 1));
+ DEFAULT_DST(2) = conv_10to16pl(SUB_F(uv, 2));
+ }
+};
+
+struct Convert_planar10_semiplanar8
+{
+ static const int in_bit_depth = 10;
+ typedef ushort in_T;
+ typedef ushort in_T_uv;
+ typedef uchar out_T;
+ typedef uchar2 out_T_uv;
+
+ DEF_F(Convert, out_T)
+ {
+ DEFAULT_DST(0) = conv_10to8pl(SUB_F(y, 0));
+ }
+
+ DEF_F(Convert_uv, out_T_uv)
+ {
+ DEFAULT_DST(1) = make_uchar2(
+ conv_10to8pl(SUB_F(uv, 1)),
+ conv_10to8pl(SUB_F(uv, 2))
+ );
+ }
+};
+
+struct Convert_planar10_semiplanar10
+{
+ static const int in_bit_depth = 10;
+ typedef ushort in_T;
+ typedef ushort in_T_uv;
+ typedef ushort out_T;
+ typedef ushort2 out_T_uv;
+
+ DEF_F(Convert, out_T)
+ {
+ DEFAULT_DST(0) = (SUB_F(y, 0) << 6);
+ }
+
+ DEF_F(Convert_uv, out_T_uv)
+ {
+ DEFAULT_DST(1) = make_ushort2(
+ (SUB_F(uv, 1) << 6),
+ (SUB_F(uv, 2) << 6)
+ );
+ }
+};
+
+struct Convert_planar10_semiplanar16
+{
+ static const int in_bit_depth = 10;
+ typedef ushort in_T;
+ typedef ushort in_T_uv;
+ typedef ushort out_T;
+ typedef ushort2 out_T_uv;
+
+ DEF_F(Convert, out_T)
+ {
+ DEFAULT_DST(0) = conv_10to16pl(SUB_F(y, 0));
+ }
+
+ DEF_F(Convert_uv, out_T_uv)
+ {
+ DEFAULT_DST(1) = make_ushort2(
+ conv_10to16pl(SUB_F(uv, 1)),
+ conv_10to16pl(SUB_F(uv, 2))
+ );
+ }
+};
+
+// planar16->X
+
+struct Convert_planar16_planar8
+{
+ static const int in_bit_depth = 16;
+ typedef ushort in_T;
+ typedef ushort in_T_uv;
+ typedef uchar out_T;
+ typedef uchar out_T_uv;
+
+ DEF_F(Convert, out_T)
+ {
+ DEFAULT_DST(0) = conv_16to8(SUB_F(y, 0));
+ }
+
+ DEF_F(Convert_uv, out_T_uv)
+ {
+ DEFAULT_DST(1) = conv_16to8(SUB_F(uv, 1));
+ DEFAULT_DST(2) = conv_16to8(SUB_F(uv, 2));
+ }
+};
+
+struct Convert_planar16_planar10
+{
+ static const int in_bit_depth = 16;
+ typedef ushort in_T;
+ typedef ushort in_T_uv;
+ typedef ushort out_T;
+ typedef ushort out_T_uv;
+
+ DEF_F(Convert, out_T)
+ {
+ DEFAULT_DST(0) = conv_16to10pl(SUB_F(y, 0));
+ }
+
+ DEF_F(Convert_uv, out_T_uv)
+ {
+ DEFAULT_DST(1) = conv_16to10pl(SUB_F(uv, 1));
+ DEFAULT_DST(2) = conv_16to10pl(SUB_F(uv, 2));
+ }
+};
+
+struct Convert_planar16_planar16
+{
+ static const int in_bit_depth = 16;
+ typedef ushort in_T;
+ typedef ushort in_T_uv;
+ typedef ushort out_T;
+ typedef ushort out_T_uv;
+
+ DEF_F(Convert, out_T)
+ {
+ DEFAULT_DST(0) = SUB_F(y, 0);
+ }
+
+ DEF_F(Convert_uv, out_T_uv)
+ {
+ DEFAULT_DST(1) = SUB_F(uv, 1);
+ DEFAULT_DST(2) = SUB_F(uv, 2);
+ }
+};
+
+struct Convert_planar16_semiplanar8
+{
+ static const int in_bit_depth = 16;
+ typedef ushort in_T;
+ typedef ushort in_T_uv;
+ typedef uchar out_T;
+ typedef uchar2 out_T_uv;
+
+ DEF_F(Convert, out_T)
+ {
+ DEFAULT_DST(0) = conv_16to8(SUB_F(y, 0));
+ }
+
+ DEF_F(Convert_uv, out_T_uv)
+ {
+ DEFAULT_DST(1) = make_uchar2(
+ conv_16to8(SUB_F(uv, 1)),
+ conv_16to8(SUB_F(uv, 2))
+ );
+ }
+};
+
+struct Convert_planar16_semiplanar10
+{
+ static const int in_bit_depth = 16;
+ typedef ushort in_T;
+ typedef ushort in_T_uv;
+ typedef ushort out_T;
+ typedef ushort2 out_T_uv;
+
+ DEF_F(Convert, out_T)
+ {
+ DEFAULT_DST(0) = conv_16to10(SUB_F(y, 0));
+ }
+
+ DEF_F(Convert_uv, out_T_uv)
+ {
+ DEFAULT_DST(1) = make_ushort2(
+ conv_16to10(SUB_F(uv, 1)),
+ conv_16to10(SUB_F(uv, 2))
+ );
+ }
+};
+
+struct Convert_planar16_semiplanar16
+{
+ static const int in_bit_depth = 16;
+ typedef ushort in_T;
+ typedef ushort in_T_uv;
+ typedef ushort out_T;
+ typedef ushort2 out_T_uv;
+
+ DEF_F(Convert, out_T)
+ {
+ DEFAULT_DST(0) = SUB_F(y, 0);
+ }
+
+ DEF_F(Convert_uv, out_T_uv)
+ {
+ DEFAULT_DST(1) = make_ushort2(
+ SUB_F(uv, 1),
+ SUB_F(uv, 2)
+ );
+ }
+};
+
+// semiplanar8->X
+
+struct Convert_semiplanar8_planar8
{
static const int in_bit_depth = 8;
typedef uchar in_T;
@@ -232,7 +510,49 @@ struct Convert_nv12_yuv420p
}
};
-struct Convert_nv12_nv12
+struct Convert_semiplanar8_planar10
+{
+ static const int in_bit_depth = 8;
+ typedef uchar in_T;
+ typedef uchar2 in_T_uv;
+ typedef ushort out_T;
+ typedef ushort out_T_uv;
+
+ DEF_F(Convert, out_T)
+ {
+ DEFAULT_DST(0) = conv_8to10pl(SUB_F(y, 0));
+ }
+
+ DEF_F(Convert_uv, out_T_uv)
+ {
+ in_T_uv res = SUB_F(uv, 1);
+ DEFAULT_DST(1) = conv_8to10pl(res.x);
+ DEFAULT_DST(2) = conv_8to10pl(res.y);
+ }
+};
+
+struct Convert_semiplanar8_planar16
+{
+ static const int in_bit_depth = 8;
+ typedef uchar in_T;
+ typedef uchar2 in_T_uv;
+ typedef ushort out_T;
+ typedef ushort out_T_uv;
+
+ DEF_F(Convert, out_T)
+ {
+ DEFAULT_DST(0) = conv_8to16(SUB_F(y, 0), mask_16bit);
+ }
+
+ DEF_F(Convert_uv, out_T_uv)
+ {
+ in_T_uv res = SUB_F(uv, 1);
+ DEFAULT_DST(1) = conv_8to16(res.x, mask_16bit);
+ DEFAULT_DST(2) = conv_8to16(res.y, mask_16bit);
+ }
+};
+
+struct Convert_semiplanar8_semiplanar8
{
static const int in_bit_depth = 8;
typedef uchar in_T;
@@ -251,28 +571,7 @@ struct Convert_nv12_nv12
}
};
-struct Convert_nv12_yuv444p
-{
- static const int in_bit_depth = 8;
- typedef uchar in_T;
- typedef uchar2 in_T_uv;
- typedef uchar out_T;
- typedef uchar out_T_uv;
-
- DEF_F(Convert, out_T)
- {
- DEFAULT_DST(0) = SUB_F(y, 0);
- }
-
- DEF_F(Convert_uv, out_T_uv)
- {
- in_T_uv res = SUB_F(uv, 1);
- DEFAULT_DST(1) = res.x;
- DEFAULT_DST(2) = res.y;
- }
-};
-
-struct Convert_nv12_p010le
+struct Convert_semiplanar8_semiplanar10
{
static const int in_bit_depth = 8;
typedef uchar in_T;
@@ -295,7 +594,7 @@ struct Convert_nv12_p010le
}
};
-struct Convert_nv12_p016le
+struct Convert_semiplanar8_semiplanar16
{
static const int in_bit_depth = 8;
typedef uchar in_T;
@@ -318,158 +617,9 @@ struct Convert_nv12_p016le
}
};
-struct Convert_nv12_yuv444p16le
-{
- static const int in_bit_depth = 8;
- typedef uchar in_T;
- typedef uchar2 in_T_uv;
- typedef ushort out_T;
- typedef ushort out_T_uv;
+// semiplanar10->X
- DEF_F(Convert, out_T)
- {
- DEFAULT_DST(0) = conv_8to16(SUB_F(y, 0), mask_16bit);
- }
-
- DEF_F(Convert_uv, out_T_uv)
- {
- in_T_uv res = SUB_F(uv, 1);
- DEFAULT_DST(1) = conv_8to16(res.x, mask_16bit);
- DEFAULT_DST(2) = conv_8to16(res.y, mask_16bit);
- }
-};
-
-// yuv444p->X
-
-struct Convert_yuv444p_yuv420p
-{
- static const int in_bit_depth = 8;
- typedef uchar in_T;
- typedef uchar in_T_uv;
- typedef uchar out_T;
- typedef uchar out_T_uv;
-
- DEF_F(Convert, out_T)
- {
- DEFAULT_DST(0) = SUB_F(y, 0);
- }
-
- DEF_F(Convert_uv, out_T_uv)
- {
- DEFAULT_DST(1) = SUB_F(uv, 1);
- DEFAULT_DST(2) = SUB_F(uv, 2);
- }
-};
-
-struct Convert_yuv444p_nv12
-{
- static const int in_bit_depth = 8;
- typedef uchar in_T;
- typedef uchar in_T_uv;
- typedef uchar out_T;
- typedef uchar2 out_T_uv;
-
- DEF_F(Convert, out_T)
- {
- DEFAULT_DST(0) = SUB_F(y, 0);
- }
-
- DEF_F(Convert_uv, out_T_uv)
- {
- DEFAULT_DST(1) = make_uchar2(
- SUB_F(uv, 1),
- SUB_F(uv, 2)
- );
- }
-};
-
-struct Convert_yuv444p_yuv444p
-{
- static const int in_bit_depth = 8;
- typedef uchar in_T;
- typedef uchar in_T_uv;
- typedef uchar out_T;
- typedef uchar out_T_uv;
-
- DEF_F(Convert, out_T)
- {
- DEFAULT_DST(0) = SUB_F(y, 0);
- }
-
- DEF_F(Convert_uv, out_T_uv)
- {
- DEFAULT_DST(1) = SUB_F(uv, 1);
- DEFAULT_DST(2) = SUB_F(uv, 2);
- }
-};
-
-struct Convert_yuv444p_p010le
-{
- static const int in_bit_depth = 8;
- typedef uchar in_T;
- typedef uchar in_T_uv;
- typedef ushort out_T;
- typedef ushort2 out_T_uv;
-
- DEF_F(Convert, out_T)
- {
- DEFAULT_DST(0) = conv_8to16(SUB_F(y, 0), mask_10bit);
- }
-
- DEF_F(Convert_uv, out_T_uv)
- {
- DEFAULT_DST(1) = make_ushort2(
- conv_8to16(SUB_F(uv, 1), mask_10bit),
- conv_8to16(SUB_F(uv, 2), mask_10bit)
- );
- }
-};
-
-struct Convert_yuv444p_p016le
-{
- static const int in_bit_depth = 8;
- typedef uchar in_T;
- typedef uchar in_T_uv;
- typedef ushort out_T;
- typedef ushort2 out_T_uv;
-
- DEF_F(Convert, out_T)
- {
- DEFAULT_DST(0) = conv_8to16(SUB_F(y, 0), mask_16bit);
- }
-
- DEF_F(Convert_uv, out_T_uv)
- {
- DEFAULT_DST(1) = make_ushort2(
- conv_8to16(SUB_F(uv, 1), mask_16bit),
- conv_8to16(SUB_F(uv, 2), mask_16bit)
- );
- }
-};
-
-struct Convert_yuv444p_yuv444p16le
-{
- static const int in_bit_depth = 8;
- typedef uchar in_T;
- typedef uchar in_T_uv;
- typedef ushort out_T;
- typedef ushort out_T_uv;
-
- DEF_F(Convert, out_T)
- {
- DEFAULT_DST(0) = conv_8to16(SUB_F(y, 0), mask_16bit);
- }
-
- DEF_F(Convert_uv, out_T_uv)
- {
- DEFAULT_DST(1) = conv_8to16(SUB_F(uv, 1), mask_16bit);
- DEFAULT_DST(2) = conv_8to16(SUB_F(uv, 2), mask_16bit);
- }
-};
-
-// p010le->X
-
-struct Convert_p010le_yuv420p
+struct Convert_semiplanar10_planar8
{
static const int in_bit_depth = 10;
typedef ushort in_T;
@@ -490,7 +640,49 @@ struct Convert_p010le_yuv420p
}
};
-struct Convert_p010le_nv12
+struct Convert_semiplanar10_planar10
+{
+ static const int in_bit_depth = 10;
+ typedef ushort in_T;
+ typedef ushort2 in_T_uv;
+ typedef ushort out_T;
+ typedef ushort out_T_uv;
+
+ DEF_F(Convert, out_T)
+ {
+ DEFAULT_DST(0) = SUB_F(y, 0) >> 6;
+ }
+
+ DEF_F(Convert_uv, out_T_uv)
+ {
+ in_T_uv res = SUB_F(uv, 1);
+ DEFAULT_DST(1) = res.x >> 6;
+ DEFAULT_DST(2) = res.y >> 6;
+ }
+};
+
+struct Convert_semiplanar10_planar16
+{
+ static const int in_bit_depth = 10;
+ typedef ushort in_T;
+ typedef ushort2 in_T_uv;
+ typedef ushort out_T;
+ typedef ushort out_T_uv;
+
+ DEF_F(Convert, out_T)
+ {
+ DEFAULT_DST(0) = conv_10to16(SUB_F(y, 0));
+ }
+
+ DEF_F(Convert_uv, out_T_uv)
+ {
+ in_T_uv res = SUB_F(uv, 1);
+ DEFAULT_DST(1) = conv_10to16(res.x);
+ DEFAULT_DST(2) = conv_10to16(res.y);
+ }
+};
+
+struct Convert_semiplanar10_semiplanar8
{
static const int in_bit_depth = 10;
typedef ushort in_T;
@@ -513,28 +705,7 @@ struct Convert_p010le_nv12
}
};
-struct Convert_p010le_yuv444p
-{
- static const int in_bit_depth = 10;
- typedef ushort in_T;
- typedef ushort2 in_T_uv;
- typedef uchar out_T;
- typedef uchar out_T_uv;
-
- DEF_F(Convert, out_T)
- {
- DEFAULT_DST(0) = conv_10to8(SUB_F(y, 0));
- }
-
- DEF_F(Convert_uv, out_T_uv)
- {
- in_T_uv res = SUB_F(uv, 1);
- DEFAULT_DST(1) = conv_10to8(res.x);
- DEFAULT_DST(2) = conv_10to8(res.y);
- }
-};
-
-struct Convert_p010le_p010le
+struct Convert_semiplanar10_semiplanar10
{
static const int in_bit_depth = 10;
typedef ushort in_T;
@@ -553,7 +724,7 @@ struct Convert_p010le_p010le
}
};
-struct Convert_p010le_p016le
+struct Convert_semiplanar10_semiplanar16
{
static const int in_bit_depth = 10;
typedef ushort in_T;
@@ -576,30 +747,10 @@ struct Convert_p010le_p016le
}
};
-struct Convert_p010le_yuv444p16le
-{
- static const int in_bit_depth = 10;
- typedef ushort in_T;
- typedef ushort2 in_T_uv;
- typedef ushort out_T;
- typedef ushort out_T_uv;
- DEF_F(Convert, out_T)
- {
- DEFAULT_DST(0) = conv_10to16(SUB_F(y, 0));
- }
+// semiplanar16->X
- DEF_F(Convert_uv, out_T_uv)
- {
- in_T_uv res = SUB_F(uv, 1);
- DEFAULT_DST(1) = conv_10to16(res.x);
- DEFAULT_DST(2) = conv_10to16(res.y);
- }
-};
-
-// p016le->X
-
-struct Convert_p016le_yuv420p
+struct Convert_semiplanar16_planar8
{
static const int in_bit_depth = 16;
typedef ushort in_T;
@@ -620,7 +771,49 @@ struct Convert_p016le_yuv420p
}
};
-struct Convert_p016le_nv12
+struct Convert_semiplanar16_planar10
+{
+ static const int in_bit_depth = 16;
+ typedef ushort in_T;
+ typedef ushort2 in_T_uv;
+ typedef ushort out_T;
+ typedef ushort out_T_uv;
+
+ DEF_F(Convert, out_T)
+ {
+ DEFAULT_DST(0) = conv_16to10pl(SUB_F(y, 0));
+ }
+
+ DEF_F(Convert_uv, out_T_uv)
+ {
+ in_T_uv res = SUB_F(uv, 1);
+ DEFAULT_DST(1) = conv_16to10pl(res.x);
+ DEFAULT_DST(2) = conv_16to10pl(res.y);
+ }
+};
+
+struct Convert_semiplanar16_planar16
+{
+ static const int in_bit_depth = 16;
+ typedef ushort in_T;
+ typedef ushort2 in_T_uv;
+ typedef ushort out_T;
+ typedef ushort out_T_uv;
+
+ DEF_F(Convert, out_T)
+ {
+ DEFAULT_DST(0) = SUB_F(y, 0);
+ }
+
+ DEF_F(Convert_uv, out_T_uv)
+ {
+ in_T_uv res = SUB_F(uv, 1);
+ DEFAULT_DST(1) = res.x;
+ DEFAULT_DST(2) = res.y;
+ }
+};
+
+struct Convert_semiplanar16_semiplanar8
{
static const int in_bit_depth = 16;
typedef ushort in_T;
@@ -643,28 +836,7 @@ struct Convert_p016le_nv12
}
};
-struct Convert_p016le_yuv444p
-{
- static const int in_bit_depth = 16;
- typedef ushort in_T;
- typedef ushort2 in_T_uv;
- typedef uchar out_T;
- typedef uchar out_T_uv;
-
- DEF_F(Convert, out_T)
- {
- DEFAULT_DST(0) = conv_16to8(SUB_F(y, 0));
- }
-
- DEF_F(Convert_uv, out_T_uv)
- {
- in_T_uv res = SUB_F(uv, 1);
- DEFAULT_DST(1) = conv_16to8(res.x);
- DEFAULT_DST(2) = conv_16to8(res.y);
- }
-};
-
-struct Convert_p016le_p010le
+struct Convert_semiplanar16_semiplanar10
{
static const int in_bit_depth = 16;
typedef ushort in_T;
@@ -687,7 +859,7 @@ struct Convert_p016le_p010le
}
};
-struct Convert_p016le_p016le
+struct Convert_semiplanar16_semiplanar16
{
static const int in_bit_depth = 16;
typedef ushort in_T;
@@ -706,155 +878,6 @@ struct Convert_p016le_p016le
}
};
-struct Convert_p016le_yuv444p16le
-{
- static const int in_bit_depth = 16;
- typedef ushort in_T;
- typedef ushort2 in_T_uv;
- typedef ushort out_T;
- typedef ushort out_T_uv;
-
- DEF_F(Convert, out_T)
- {
- DEFAULT_DST(0) = SUB_F(y, 0);
- }
-
- DEF_F(Convert_uv, out_T_uv)
- {
- in_T_uv res = SUB_F(uv, 1);
- DEFAULT_DST(1) = res.x;
- DEFAULT_DST(2) = res.y;
- }
-};
-
-// yuv444p16le->X
-
-struct Convert_yuv444p16le_yuv420p
-{
- static const int in_bit_depth = 16;
- typedef ushort in_T;
- typedef ushort in_T_uv;
- typedef uchar out_T;
- typedef uchar out_T_uv;
-
- DEF_F(Convert, out_T)
- {
- DEFAULT_DST(0) = conv_16to8(SUB_F(y, 0));
- }
-
- DEF_F(Convert_uv, out_T_uv)
- {
- DEFAULT_DST(1) = conv_16to8(SUB_F(uv, 1));
- DEFAULT_DST(2) = conv_16to8(SUB_F(uv, 2));
- }
-};
-
-struct Convert_yuv444p16le_nv12
-{
- static const int in_bit_depth = 16;
- typedef ushort in_T;
- typedef ushort in_T_uv;
- typedef uchar out_T;
- typedef uchar2 out_T_uv;
-
- DEF_F(Convert, out_T)
- {
- DEFAULT_DST(0) = conv_16to8(SUB_F(y, 0));
- }
-
- DEF_F(Convert_uv, out_T_uv)
- {
- DEFAULT_DST(1) = make_uchar2(
- conv_16to8(SUB_F(uv, 1)),
- conv_16to8(SUB_F(uv, 2))
- );
- }
-};
-
-struct Convert_yuv444p16le_yuv444p
-{
- static const int in_bit_depth = 16;
- typedef ushort in_T;
- typedef ushort in_T_uv;
- typedef uchar out_T;
- typedef uchar out_T_uv;
-
- DEF_F(Convert, out_T)
- {
- DEFAULT_DST(0) = conv_16to8(SUB_F(y, 0));
- }
-
- DEF_F(Convert_uv, out_T_uv)
- {
- DEFAULT_DST(1) = conv_16to8(SUB_F(uv, 1));
- DEFAULT_DST(2) = conv_16to8(SUB_F(uv, 2));
- }
-};
-
-struct Convert_yuv444p16le_p010le
-{
- static const int in_bit_depth = 16;
- typedef ushort in_T;
- typedef ushort in_T_uv;
- typedef ushort out_T;
- typedef ushort2 out_T_uv;
-
- DEF_F(Convert, out_T)
- {
- DEFAULT_DST(0) = conv_16to10(SUB_F(y, 0));
- }
-
- DEF_F(Convert_uv, out_T_uv)
- {
- DEFAULT_DST(1) = make_ushort2(
- conv_16to10(SUB_F(uv, 1)),
- conv_16to10(SUB_F(uv, 2))
- );
- }
-};
-
-struct Convert_yuv444p16le_p016le
-{
- static const int in_bit_depth = 16;
- typedef ushort in_T;
- typedef ushort in_T_uv;
- typedef ushort out_T;
- typedef ushort2 out_T_uv;
-
- DEF_F(Convert, out_T)
- {
- DEFAULT_DST(0) = SUB_F(y, 0);
- }
-
- DEF_F(Convert_uv, out_T_uv)
- {
- DEFAULT_DST(1) = make_ushort2(
- SUB_F(uv, 1),
- SUB_F(uv, 2)
- );
- }
-};
-
-struct Convert_yuv444p16le_yuv444p16le
-{
- static const int in_bit_depth = 16;
- typedef ushort in_T;
- typedef ushort in_T_uv;
- typedef ushort out_T;
- typedef ushort out_T_uv;
-
- DEF_F(Convert, out_T)
- {
- DEFAULT_DST(0) = SUB_F(y, 0);
- }
-
- DEF_F(Convert_uv, out_T_uv)
- {
- DEFAULT_DST(1) = SUB_F(uv, 1);
- DEFAULT_DST(2) = SUB_F(uv, 2);
- }
-};
-
#define DEF_CONVERT_IDENTITY(fmt1, fmt2)\
\
struct Convert_##fmt1##_##fmt2 \
@@ -1184,12 +1207,12 @@ extern "C" {
NEAREST_KERNEL(C,_uv)
#define NEAREST_KERNELS(C) \
- NEAREST_KERNEL_RAW(yuv420p_ ## C) \
- NEAREST_KERNEL_RAW(nv12_ ## C) \
- NEAREST_KERNEL_RAW(yuv444p_ ## C) \
- NEAREST_KERNEL_RAW(p010le_ ## C) \
- NEAREST_KERNEL_RAW(p016le_ ## C) \
- NEAREST_KERNEL_RAW(yuv444p16le_ ## C)
+ NEAREST_KERNEL_RAW(planar8_ ## C) \
+ NEAREST_KERNEL_RAW(planar10_ ## C) \
+ NEAREST_KERNEL_RAW(planar16_ ## C) \
+ NEAREST_KERNEL_RAW(semiplanar8_ ## C) \
+ NEAREST_KERNEL_RAW(semiplanar10_ ## C) \
+ NEAREST_KERNEL_RAW(semiplanar16_ ## C)
#define NEAREST_KERNELS_RGB(C) \
NEAREST_KERNEL_RAW(rgb0_ ## C) \
@@ -1197,12 +1220,12 @@ extern "C" {
NEAREST_KERNEL_RAW(rgba_ ## C) \
NEAREST_KERNEL_RAW(bgra_ ## C) \
-NEAREST_KERNELS(yuv420p)
-NEAREST_KERNELS(nv12)
-NEAREST_KERNELS(yuv444p)
-NEAREST_KERNELS(p010le)
-NEAREST_KERNELS(p016le)
-NEAREST_KERNELS(yuv444p16le)
+NEAREST_KERNELS(planar8)
+NEAREST_KERNELS(planar10)
+NEAREST_KERNELS(planar16)
+NEAREST_KERNELS(semiplanar8)
+NEAREST_KERNELS(semiplanar10)
+NEAREST_KERNELS(semiplanar16)
NEAREST_KERNELS_RGB(rgb0)
NEAREST_KERNELS_RGB(bgr0)
@@ -1224,12 +1247,12 @@ NEAREST_KERNELS_RGB(bgra)
BILINEAR_KERNEL(C,_uv)
#define BILINEAR_KERNELS(C) \
- BILINEAR_KERNEL_RAW(yuv420p_ ## C) \
- BILINEAR_KERNEL_RAW(nv12_ ## C) \
- BILINEAR_KERNEL_RAW(yuv444p_ ## C) \
- BILINEAR_KERNEL_RAW(p010le_ ## C) \
- BILINEAR_KERNEL_RAW(p016le_ ## C) \
- BILINEAR_KERNEL_RAW(yuv444p16le_ ## C)
+ BILINEAR_KERNEL_RAW(planar8_ ## C) \
+ BILINEAR_KERNEL_RAW(planar10_ ## C) \
+ BILINEAR_KERNEL_RAW(planar16_ ## C) \
+ BILINEAR_KERNEL_RAW(semiplanar8_ ## C) \
+ BILINEAR_KERNEL_RAW(semiplanar10_ ## C) \
+ BILINEAR_KERNEL_RAW(semiplanar16_ ## C)
#define BILINEAR_KERNELS_RGB(C) \
BILINEAR_KERNEL_RAW(rgb0_ ## C) \
@@ -1237,12 +1260,12 @@ NEAREST_KERNELS_RGB(bgra)
BILINEAR_KERNEL_RAW(rgba_ ## C) \
BILINEAR_KERNEL_RAW(bgra_ ## C)
-BILINEAR_KERNELS(yuv420p)
-BILINEAR_KERNELS(nv12)
-BILINEAR_KERNELS(yuv444p)
-BILINEAR_KERNELS(p010le)
-BILINEAR_KERNELS(p016le)
-BILINEAR_KERNELS(yuv444p16le)
+BILINEAR_KERNELS(planar8)
+BILINEAR_KERNELS(planar10)
+BILINEAR_KERNELS(planar16)
+BILINEAR_KERNELS(semiplanar8)
+BILINEAR_KERNELS(semiplanar10)
+BILINEAR_KERNELS(semiplanar16)
BILINEAR_KERNELS_RGB(rgb0)
BILINEAR_KERNELS_RGB(bgr0)
@@ -1264,12 +1287,12 @@ BILINEAR_KERNELS_RGB(bgra)
BICUBIC_KERNEL(C,_uv)
#define BICUBIC_KERNELS(C) \
- BICUBIC_KERNEL_RAW(yuv420p_ ## C) \
- BICUBIC_KERNEL_RAW(nv12_ ## C) \
- BICUBIC_KERNEL_RAW(yuv444p_ ## C) \
- BICUBIC_KERNEL_RAW(p010le_ ## C) \
- BICUBIC_KERNEL_RAW(p016le_ ## C) \
- BICUBIC_KERNEL_RAW(yuv444p16le_ ## C)
+ BICUBIC_KERNEL_RAW(planar8_ ## C) \
+ BICUBIC_KERNEL_RAW(planar10_ ## C) \
+ BICUBIC_KERNEL_RAW(planar16_ ## C) \
+ BICUBIC_KERNEL_RAW(semiplanar8_ ## C) \
+ BICUBIC_KERNEL_RAW(semiplanar10_ ## C) \
+ BICUBIC_KERNEL_RAW(semiplanar16_ ## C)
#define BICUBIC_KERNELS_RGB(C) \
BICUBIC_KERNEL_RAW(rgb0_ ## C) \
@@ -1277,12 +1300,12 @@ BILINEAR_KERNELS_RGB(bgra)
BICUBIC_KERNEL_RAW(rgba_ ## C) \
BICUBIC_KERNEL_RAW(bgra_ ## C)
-BICUBIC_KERNELS(yuv420p)
-BICUBIC_KERNELS(nv12)
-BICUBIC_KERNELS(yuv444p)
-BICUBIC_KERNELS(p010le)
-BICUBIC_KERNELS(p016le)
-BICUBIC_KERNELS(yuv444p16le)
+BICUBIC_KERNELS(planar8)
+BICUBIC_KERNELS(planar10)
+BICUBIC_KERNELS(planar16)
+BICUBIC_KERNELS(semiplanar8)
+BICUBIC_KERNELS(semiplanar10)
+BICUBIC_KERNELS(semiplanar16)
BICUBIC_KERNELS_RGB(rgb0)
BICUBIC_KERNELS_RGB(bgr0)
@@ -1304,12 +1327,12 @@ BICUBIC_KERNELS_RGB(bgra)
LANCZOS_KERNEL(C,_uv)
#define LANCZOS_KERNELS(C) \
- LANCZOS_KERNEL_RAW(yuv420p_ ## C) \
- LANCZOS_KERNEL_RAW(nv12_ ## C) \
- LANCZOS_KERNEL_RAW(yuv444p_ ## C) \
- LANCZOS_KERNEL_RAW(p010le_ ## C) \
- LANCZOS_KERNEL_RAW(p016le_ ## C) \
- LANCZOS_KERNEL_RAW(yuv444p16le_ ## C)
+ LANCZOS_KERNEL_RAW(planar8_ ## C) \
+ LANCZOS_KERNEL_RAW(planar10_ ## C) \
+ LANCZOS_KERNEL_RAW(planar16_ ## C) \
+ LANCZOS_KERNEL_RAW(semiplanar8_ ## C) \
+ LANCZOS_KERNEL_RAW(semiplanar10_ ## C) \
+ LANCZOS_KERNEL_RAW(semiplanar16_ ## C)
#define LANCZOS_KERNELS_RGB(C) \
LANCZOS_KERNEL_RAW(rgb0_ ## C) \
@@ -1317,12 +1340,12 @@ BICUBIC_KERNELS_RGB(bgra)
LANCZOS_KERNEL_RAW(rgba_ ## C) \
LANCZOS_KERNEL_RAW(bgra_ ## C)
-LANCZOS_KERNELS(yuv420p)
-LANCZOS_KERNELS(nv12)
-LANCZOS_KERNELS(yuv444p)
-LANCZOS_KERNELS(p010le)
-LANCZOS_KERNELS(p016le)
-LANCZOS_KERNELS(yuv444p16le)
+LANCZOS_KERNELS(planar8)
+LANCZOS_KERNELS(planar10)
+LANCZOS_KERNELS(planar16)
+LANCZOS_KERNELS(semiplanar8)
+LANCZOS_KERNELS(semiplanar10)
+LANCZOS_KERNELS(semiplanar16)
LANCZOS_KERNELS_RGB(rgb0)
LANCZOS_KERNELS_RGB(bgr0)
--
2.49.1
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2025-09-20 16:02 [FFmpeg-devel] [PATCH] avfilter/scale_cuda: Add support for 4:2:2 chroma subsampling (PR #20562) Timo Rothenpieler via ffmpeg-devel
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