* [FFmpeg-devel] [PATCH v3 0/9] AFGS1 film grain support
@ 2024-03-15 11:58 Niklas Haas
2024-03-15 11:58 ` [FFmpeg-devel] [PATCH v3 1/9] avutil/film_grain_params: add extra AFGS1 metadata Niklas Haas
` (8 more replies)
0 siblings, 9 replies; 15+ messages in thread
From: Niklas Haas @ 2024-03-15 11:58 UTC (permalink / raw)
To: ffmpeg-devel
Changes from v2:
- Expose the AFGS1-exclusive parameters publicly (as part of
AVFilmGrainAOMParams)
- Slightly change the AFGS1 parsing code as a result
- Properly clear whole struct on error, to avoid leaking bad state
- Attach all parameter sets (as separate side data instances), rather
than just the best
- Add a new public helper function to choose/validate fgp sets
Ended up replacing v2 entirely, instead of making this a separate
series, because I ended up entirely deleting the internal AFGS1 param
set structure I was using previously.
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^ permalink raw reply [flat|nested] 15+ messages in thread
* [FFmpeg-devel] [PATCH v3 1/9] avutil/film_grain_params: add extra AFGS1 metadata
2024-03-15 11:58 [FFmpeg-devel] [PATCH v3 0/9] AFGS1 film grain support Niklas Haas
@ 2024-03-15 11:58 ` Niklas Haas
2024-03-15 12:18 ` James Almer
2024-03-15 11:58 ` [FFmpeg-devel] [PATCH v3 2/9] avcodec/av1dec: initialize AFGS1 VSC metadata Niklas Haas
` (7 subsequent siblings)
8 siblings, 1 reply; 15+ messages in thread
From: Niklas Haas @ 2024-03-15 11:58 UTC (permalink / raw)
To: ffmpeg-devel; +Cc: Niklas Haas
From: Niklas Haas <git@haasn.dev>
In hindsight, it may have been better for this to be part of the common
film grain struct, to avoid duplication of these fields between it and
H274 (and to allow initialization by av_film_grain_params_alloc), but
I can't add new fields before the union without breaking ABI, and having
the union not be the last parameter will make future extensibility
similarly difficult.
---
doc/APIchanges | 4 ++++
libavutil/film_grain_params.h | 15 +++++++++++++++
libavutil/version.h | 2 +-
3 files changed, 20 insertions(+), 1 deletion(-)
diff --git a/doc/APIchanges b/doc/APIchanges
index cf58c8c5f0a..5a192b600af 100644
--- a/doc/APIchanges
+++ b/doc/APIchanges
@@ -2,6 +2,10 @@ The last version increases of all libraries were on 2024-03-07
API changes, most recent first:
+2024-03-08 - xxxxxxxxxx - lavu 59.2.100 - film_grain_params.h
+ Add AVFilmGrainAOMParams.color_range, color_primaries, color_trc,
+ color_space, width, height, subx, suby and bit_depth.
+
2024-03-08 - xxxxxxxxxx - lavc 61.1.100 - avcodec.h
Add AVCodecContext.[nb_]side_data_prefer_packet.
diff --git a/libavutil/film_grain_params.h b/libavutil/film_grain_params.h
index f3bd0a4a6a3..17fefeb06c3 100644
--- a/libavutil/film_grain_params.h
+++ b/libavutil/film_grain_params.h
@@ -120,6 +120,21 @@ typedef struct AVFilmGrainAOMParams {
* Signals to clip to limited color levels after film grain application.
*/
int limit_output_range;
+
+ /**
+ * Video characteristics metadata, only for AFGS1 streams.
+ */
+ enum AVColorRange color_range;
+ enum AVColorPrimaries color_primaries;
+ enum AVColorTransferCharacteristic color_trc;
+ enum AVColorSpace color_space;
+
+ /**
+ * Intended display resolution and format, only for AFGS1 streams.
+ */
+ int width, height;
+ int subx, suby;
+ int bit_depth; /* or 0 if unknown */
} AVFilmGrainAOMParams;
/**
diff --git a/libavutil/version.h b/libavutil/version.h
index 09f8cdc2926..57cad02ec0a 100644
--- a/libavutil/version.h
+++ b/libavutil/version.h
@@ -79,7 +79,7 @@
*/
#define LIBAVUTIL_VERSION_MAJOR 59
-#define LIBAVUTIL_VERSION_MINOR 1
+#define LIBAVUTIL_VERSION_MINOR 2
#define LIBAVUTIL_VERSION_MICRO 100
#define LIBAVUTIL_VERSION_INT AV_VERSION_INT(LIBAVUTIL_VERSION_MAJOR, \
--
2.44.0
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^ permalink raw reply [flat|nested] 15+ messages in thread
* [FFmpeg-devel] [PATCH v3 2/9] avcodec/av1dec: initialize AFGS1 VSC metadata
2024-03-15 11:58 [FFmpeg-devel] [PATCH v3 0/9] AFGS1 film grain support Niklas Haas
2024-03-15 11:58 ` [FFmpeg-devel] [PATCH v3 1/9] avutil/film_grain_params: add extra AFGS1 metadata Niklas Haas
@ 2024-03-15 11:58 ` Niklas Haas
2024-03-15 12:20 ` James Almer
2024-03-15 11:58 ` [FFmpeg-devel] [PATCH v3 3/9] avcodec/libdav1d: " Niklas Haas
` (6 subsequent siblings)
8 siblings, 1 reply; 15+ messages in thread
From: Niklas Haas @ 2024-03-15 11:58 UTC (permalink / raw)
To: ffmpeg-devel; +Cc: Niklas Haas
From: Niklas Haas <git@haasn.dev>
Unused by AV1, but should still be set properly.
---
libavcodec/av1dec.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/libavcodec/av1dec.c b/libavcodec/av1dec.c
index e6346b51dbe..8a5796c757f 100644
--- a/libavcodec/av1dec.c
+++ b/libavcodec/av1dec.c
@@ -1124,6 +1124,10 @@ static int export_film_grain(AVCodecContext *avctx, AVFrame *frame)
aom->uv_mult_luma[1] = film_grain->cr_luma_mult;
aom->uv_offset[0] = film_grain->cb_offset;
aom->uv_offset[1] = film_grain->cr_offset;
+ aom->color_range = AVCOL_RANGE_UNSPECIFIED;
+ aom->color_primaries = AVCOL_PRI_UNSPECIFIED;
+ aom->color_trc = AVCOL_TRC_UNSPECIFIED;
+ aom->color_space = AVCOL_SPC_UNSPECIFIED;
return 0;
}
--
2.44.0
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^ permalink raw reply [flat|nested] 15+ messages in thread
* [FFmpeg-devel] [PATCH v3 3/9] avcodec/libdav1d: initialize AFGS1 VSC metadata
2024-03-15 11:58 [FFmpeg-devel] [PATCH v3 0/9] AFGS1 film grain support Niklas Haas
2024-03-15 11:58 ` [FFmpeg-devel] [PATCH v3 1/9] avutil/film_grain_params: add extra AFGS1 metadata Niklas Haas
2024-03-15 11:58 ` [FFmpeg-devel] [PATCH v3 2/9] avcodec/av1dec: initialize AFGS1 VSC metadata Niklas Haas
@ 2024-03-15 11:58 ` Niklas Haas
2024-03-15 11:58 ` [FFmpeg-devel] [PATCH v3 4/9] avutil/frame: clarify AV_FRAME_DATA_FILM_GRAIN_PARAMS usage Niklas Haas
` (5 subsequent siblings)
8 siblings, 0 replies; 15+ messages in thread
From: Niklas Haas @ 2024-03-15 11:58 UTC (permalink / raw)
To: ffmpeg-devel; +Cc: Niklas Haas
From: Niklas Haas <git@haasn.dev>
Unused by AV1, but should still be set properly.
---
libavcodec/libdav1d.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/libavcodec/libdav1d.c b/libavcodec/libdav1d.c
index 1aa2d1f3436..6251ea79ba8 100644
--- a/libavcodec/libdav1d.c
+++ b/libavcodec/libdav1d.c
@@ -628,6 +628,10 @@ static int libdav1d_receive_frame(AVCodecContext *c, AVFrame *frame)
fgp->codec.aom.grain_scale_shift = p->frame_hdr->film_grain.data.grain_scale_shift;
fgp->codec.aom.overlap_flag = p->frame_hdr->film_grain.data.overlap_flag;
fgp->codec.aom.limit_output_range = p->frame_hdr->film_grain.data.clip_to_restricted_range;
+ fgp->codec.aom.color_range = AVCOL_RANGE_UNSPECIFIED;
+ fgp->codec.aom.color_primaries = AVCOL_PRI_UNSPECIFIED;
+ fgp->codec.aom.color_trc = AVCOL_TRC_UNSPECIFIED;
+ fgp->codec.aom.color_space = AVCOL_SPC_UNSPECIFIED;
memcpy(&fgp->codec.aom.y_points, &p->frame_hdr->film_grain.data.y_points,
sizeof(fgp->codec.aom.y_points));
--
2.44.0
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^ permalink raw reply [flat|nested] 15+ messages in thread
* [FFmpeg-devel] [PATCH v3 4/9] avutil/frame: clarify AV_FRAME_DATA_FILM_GRAIN_PARAMS usage
2024-03-15 11:58 [FFmpeg-devel] [PATCH v3 0/9] AFGS1 film grain support Niklas Haas
` (2 preceding siblings ...)
2024-03-15 11:58 ` [FFmpeg-devel] [PATCH v3 3/9] avcodec/libdav1d: " Niklas Haas
@ 2024-03-15 11:58 ` Niklas Haas
2024-03-15 11:58 ` [FFmpeg-devel] [PATCH v3 5/9] avutil/film_grain_params: add av_film_grain_params_select() Niklas Haas
` (4 subsequent siblings)
8 siblings, 0 replies; 15+ messages in thread
From: Niklas Haas @ 2024-03-15 11:58 UTC (permalink / raw)
To: ffmpeg-devel; +Cc: Niklas Haas
From: Niklas Haas <git@haasn.dev>
To allow for AFGS1 usage, which can expose multiple parameter sets for
a single frame.
---
libavutil/frame.h | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/libavutil/frame.h b/libavutil/frame.h
index b94687941db..7f616488be8 100644
--- a/libavutil/frame.h
+++ b/libavutil/frame.h
@@ -180,6 +180,10 @@ enum AVFrameSideDataType {
/**
* Film grain parameters for a frame, described by AVFilmGrainParams.
* Must be present for every frame which should have film grain applied.
+ *
+ * May be present multiple times, for example when there are multiple
+ * alternative parameter sets for different video signal characteristics.
+ * The user should select the most appropriate set for the application.
*/
AV_FRAME_DATA_FILM_GRAIN_PARAMS,
--
2.44.0
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^ permalink raw reply [flat|nested] 15+ messages in thread
* [FFmpeg-devel] [PATCH v3 5/9] avutil/film_grain_params: add av_film_grain_params_select()
2024-03-15 11:58 [FFmpeg-devel] [PATCH v3 0/9] AFGS1 film grain support Niklas Haas
` (3 preceding siblings ...)
2024-03-15 11:58 ` [FFmpeg-devel] [PATCH v3 4/9] avutil/frame: clarify AV_FRAME_DATA_FILM_GRAIN_PARAMS usage Niklas Haas
@ 2024-03-15 11:58 ` Niklas Haas
2024-03-15 12:22 ` Niklas Haas
2024-03-15 11:58 ` [FFmpeg-devel] [PATCH v3 6/9] avcodec/aom_film_grain: add AOM film grain synthesis Niklas Haas
` (3 subsequent siblings)
8 siblings, 1 reply; 15+ messages in thread
From: Niklas Haas @ 2024-03-15 11:58 UTC (permalink / raw)
To: ffmpeg-devel; +Cc: Niklas Haas
From: Niklas Haas <git@haasn.dev>
Common utility function that can be used by all codecs to select the
right (any valid) film grain parameter set. In particular, this is
useful for AFGS1, which has support for multiple parameters.
However, it also performs parameter validation for H274.
---
doc/APIchanges | 3 ++
libavutil/film_grain_params.c | 57 +++++++++++++++++++++++++++++++++++
libavutil/film_grain_params.h | 7 +++++
libavutil/version.h | 2 +-
4 files changed, 68 insertions(+), 1 deletion(-)
diff --git a/doc/APIchanges b/doc/APIchanges
index 5a192b600af..34245c8b708 100644
--- a/doc/APIchanges
+++ b/doc/APIchanges
@@ -2,6 +2,9 @@ The last version increases of all libraries were on 2024-03-07
API changes, most recent first:
+2024-03-08 - xxxxxxxxxx - lavu 59.3.100 - film_grain_params.h
+ Add av_film_grain_params_select().
+
2024-03-08 - xxxxxxxxxx - lavu 59.2.100 - film_grain_params.h
Add AVFilmGrainAOMParams.color_range, color_primaries, color_trc,
color_space, width, height, subx, suby and bit_depth.
diff --git a/libavutil/film_grain_params.c b/libavutil/film_grain_params.c
index 930d23c7fe9..8c80adc66a7 100644
--- a/libavutil/film_grain_params.c
+++ b/libavutil/film_grain_params.c
@@ -17,6 +17,7 @@
*/
#include "film_grain_params.h"
+#include "pixdesc.h"
AVFilmGrainParams *av_film_grain_params_alloc(size_t *size)
{
@@ -40,3 +41,59 @@ AVFilmGrainParams *av_film_grain_params_create_side_data(AVFrame *frame)
return (AVFilmGrainParams *)side_data->data;
}
+
+const AVFilmGrainParams *av_film_grain_params_select(const AVFrame *frame)
+{
+ const AVFilmGrainParams *fgp, *best = NULL;
+ const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(frame->format);
+ const AVFilmGrainAOMParams *aom;
+ const AVFilmGrainH274Params *h274;
+ if (!desc)
+ return NULL;
+
+#define CHECK(a, b, unspec) \
+ do { \
+ if ((a) != (unspec) && (b) != (unspec) && (a) != (b)) \
+ continue; \
+ } while (0)
+
+ for (int i = 0; i < frame->nb_side_data; i++) {
+ if (frame->side_data[i]->type != AV_FRAME_DATA_FILM_GRAIN_PARAMS)
+ continue;
+ fgp = (const AVFilmGrainParams*)frame->side_data[i]->data;
+ switch (fgp->type) {
+ case AV_FILM_GRAIN_PARAMS_NONE:
+ continue;
+ case AV_FILM_GRAIN_PARAMS_AV1:
+ aom = &fgp->codec.aom;
+ if (aom->subx != desc->log2_chroma_w || aom->suby != desc->log2_chroma_h)
+ continue;
+ CHECK(aom->bit_depth, desc->comp[0].depth, 0);
+ CHECK(aom->width, frame->width, 0);
+ CHECK(aom->height, frame->height, 0);
+ CHECK(aom->color_range, frame->color_range, AVCOL_RANGE_UNSPECIFIED);
+ CHECK(aom->color_primaries, frame->color_primaries, AVCOL_PRI_UNSPECIFIED);
+ CHECK(aom->color_trc, frame->color_trc, AVCOL_TRC_UNSPECIFIED);
+ CHECK(aom->color_space, frame->colorspace, AVCOL_SPC_UNSPECIFIED);
+
+ if (!best ||
+ best->codec.aom.width < aom->width ||
+ best->codec.aom.height < aom->height)
+ best = fgp;
+ break;
+ case AV_FILM_GRAIN_PARAMS_H274:
+ h274 = &fgp->codec.h274;
+ /* There are no YUV formats with different bit depth per component,
+ * so just check both against the first component for simplicity */
+ CHECK(h274->bit_depth_luma, desc->comp[0].depth, 0);
+ CHECK(h274->bit_depth_chroma, desc->comp[0].depth, 0);
+ CHECK(h274->color_range, frame->color_range, AVCOL_RANGE_UNSPECIFIED);
+ CHECK(h274->color_primaries, frame->color_primaries, AVCOL_PRI_UNSPECIFIED);
+ CHECK(h274->color_trc, frame->color_trc, AVCOL_TRC_UNSPECIFIED);
+ CHECK(h274->color_space, frame->colorspace, AVCOL_SPC_UNSPECIFIED);
+ return fgp; /* H274 can't have multiple resolutions */
+ }
+ }
+
+ return best;
+}
diff --git a/libavutil/film_grain_params.h b/libavutil/film_grain_params.h
index 17fefeb06c3..75c020ceb92 100644
--- a/libavutil/film_grain_params.h
+++ b/libavutil/film_grain_params.h
@@ -272,4 +272,11 @@ AVFilmGrainParams *av_film_grain_params_alloc(size_t *size);
*/
AVFilmGrainParams *av_film_grain_params_create_side_data(AVFrame *frame);
+/**
+ * Select the most appropriate film grain parameters set for the frame,
+ * taking into account the frame's format, resolution and video signal
+ * characteristics.
+ */
+const AVFilmGrainParams *av_film_grain_params_select(const AVFrame *frame);
+
#endif /* AVUTIL_FILM_GRAIN_PARAMS_H */
diff --git a/libavutil/version.h b/libavutil/version.h
index 57cad02ec0a..5027b025be4 100644
--- a/libavutil/version.h
+++ b/libavutil/version.h
@@ -79,7 +79,7 @@
*/
#define LIBAVUTIL_VERSION_MAJOR 59
-#define LIBAVUTIL_VERSION_MINOR 2
+#define LIBAVUTIL_VERSION_MINOR 3
#define LIBAVUTIL_VERSION_MICRO 100
#define LIBAVUTIL_VERSION_INT AV_VERSION_INT(LIBAVUTIL_VERSION_MAJOR, \
--
2.44.0
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^ permalink raw reply [flat|nested] 15+ messages in thread
* [FFmpeg-devel] [PATCH v3 6/9] avcodec/aom_film_grain: add AOM film grain synthesis
2024-03-15 11:58 [FFmpeg-devel] [PATCH v3 0/9] AFGS1 film grain support Niklas Haas
` (4 preceding siblings ...)
2024-03-15 11:58 ` [FFmpeg-devel] [PATCH v3 5/9] avutil/film_grain_params: add av_film_grain_params_select() Niklas Haas
@ 2024-03-15 11:58 ` Niklas Haas
2024-03-15 11:59 ` [FFmpeg-devel] [PATCH v3 7/9] avcodec/aom_film_grain: implement AFGS1 parsing Niklas Haas
` (2 subsequent siblings)
8 siblings, 0 replies; 15+ messages in thread
From: Niklas Haas @ 2024-03-15 11:58 UTC (permalink / raw)
To: ffmpeg-devel; +Cc: Niklas Haas
From: Niklas Haas <git@haasn.dev>
Implementation copied wholesale from dav1d, sans SIMD, under permissive
license. This implementation was extensively verified to be bit-exact,
so it serves as a much better starting point than trying to re-engineer
this from scratch for no reason. (I also authored the original
implementation in dav1d, so any "clean room" implementation would end up
looking much the same, anyway)
The notable changes I had to make while adapting this from the dav1d
code-base to the FFmpeg codebase include:
- reordering variable declarations to avoid triggering warnings
- replacing several inline helpers by avutil equivalents
- changing code that accesses frame metadata
- replacing raw plane copying logic by av_image_copy_plane
Apart from this, the implementation is basically unmodified.
---
libavcodec/aom_film_grain.c | 310 ++++++++++++++
libavcodec/aom_film_grain.h | 38 ++
libavcodec/aom_film_grain_template.c | 577 +++++++++++++++++++++++++++
3 files changed, 925 insertions(+)
create mode 100644 libavcodec/aom_film_grain.c
create mode 100644 libavcodec/aom_film_grain.h
create mode 100644 libavcodec/aom_film_grain_template.c
diff --git a/libavcodec/aom_film_grain.c b/libavcodec/aom_film_grain.c
new file mode 100644
index 00000000000..ffcd71b584b
--- /dev/null
+++ b/libavcodec/aom_film_grain.c
@@ -0,0 +1,310 @@
+/*
+ * AOM film grain synthesis
+ * Copyright (c) 2023 Niklas Haas <ffmpeg@haasn.xyz>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * AOM film grain synthesis.
+ * @author Niklas Haas <ffmpeg@haasn.xyz>
+ */
+
+#include "libavutil/avassert.h"
+#include "libavutil/imgutils.h"
+
+#include "aom_film_grain.h"
+
+// Common/shared helpers (not dependent on BIT_DEPTH)
+static inline int get_random_number(const int bits, unsigned *const state) {
+ const int r = *state;
+ unsigned bit = ((r >> 0) ^ (r >> 1) ^ (r >> 3) ^ (r >> 12)) & 1;
+ *state = (r >> 1) | (bit << 15);
+
+ return (*state >> (16 - bits)) & ((1 << bits) - 1);
+}
+
+static inline int round2(const int x, const uint64_t shift) {
+ return (x + ((1 << shift) >> 1)) >> shift;
+}
+
+enum {
+ GRAIN_WIDTH = 82,
+ GRAIN_HEIGHT = 73,
+ SUB_GRAIN_WIDTH = 44,
+ SUB_GRAIN_HEIGHT = 38,
+ FG_BLOCK_SIZE = 32,
+};
+
+static const int16_t gaussian_sequence[2048];
+
+#define BIT_DEPTH 16
+#include "aom_film_grain_template.c"
+#undef BIT_DEPTH
+
+#define BIT_DEPTH 8
+#include "aom_film_grain_template.c"
+#undef BIT_DEPTH
+
+
+int ff_aom_apply_film_grain(AVFrame *out, const AVFrame *in,
+ const AVFilmGrainParams *params)
+{
+ const AVFilmGrainAOMParams *const data = ¶ms->codec.aom;
+ const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(out->format);
+ const int subx = desc->log2_chroma_w, suby = desc->log2_chroma_h;
+ const int pxstep = desc->comp[0].step;
+
+ av_assert0(out->format == in->format);
+ av_assert0(params->type == AV_FILM_GRAIN_PARAMS_AV1);
+
+ // Copy over the non-modified planes
+ if (!params->codec.aom.num_y_points) {
+ av_image_copy_plane(out->data[0], out->linesize[0],
+ in->data[0], in->linesize[0],
+ out->width * pxstep, out->height);
+ }
+ for (int uv = 0; uv < 2; uv++) {
+ if (!data->num_uv_points[uv]) {
+ av_image_copy_plane(out->data[1+uv], out->linesize[1+uv],
+ in->data[1+uv], in->linesize[1+uv],
+ AV_CEIL_RSHIFT(out->width, subx) * pxstep,
+ AV_CEIL_RSHIFT(out->height, suby));
+ }
+ }
+
+ switch (in->format) {
+ case AV_PIX_FMT_GRAY8:
+ case AV_PIX_FMT_YUV420P:
+ case AV_PIX_FMT_YUV422P:
+ case AV_PIX_FMT_YUV444P:
+ case AV_PIX_FMT_YUVJ420P:
+ case AV_PIX_FMT_YUVJ422P:
+ case AV_PIX_FMT_YUVJ444P:
+ return apply_film_grain_8(out, in, params);
+ case AV_PIX_FMT_GRAY9:
+ case AV_PIX_FMT_YUV420P9:
+ case AV_PIX_FMT_YUV422P9:
+ case AV_PIX_FMT_YUV444P9:
+ return apply_film_grain_16(out, in, params, 9);
+ case AV_PIX_FMT_GRAY10:
+ case AV_PIX_FMT_YUV420P10:
+ case AV_PIX_FMT_YUV422P10:
+ case AV_PIX_FMT_YUV444P10:
+ return apply_film_grain_16(out, in, params, 10);
+ case AV_PIX_FMT_GRAY12:
+ case AV_PIX_FMT_YUV420P12:
+ case AV_PIX_FMT_YUV422P12:
+ case AV_PIX_FMT_YUV444P12:
+ return apply_film_grain_16(out, in, params, 12);
+ }
+
+ /* The AV1 spec only defines film grain synthesis for these formats */
+ return AVERROR_INVALIDDATA;
+}
+
+// Taken from the AV1 spec. Range is [-2048, 2047], mean is 0 and stddev is 512
+static const int16_t gaussian_sequence[2048] = {
+ 56, 568, -180, 172, 124, -84, 172, -64, -900, 24, 820,
+ 224, 1248, 996, 272, -8, -916, -388, -732, -104, -188, 800,
+ 112, -652, -320, -376, 140, -252, 492, -168, 44, -788, 588,
+ -584, 500, -228, 12, 680, 272, -476, 972, -100, 652, 368,
+ 432, -196, -720, -192, 1000, -332, 652, -136, -552, -604, -4,
+ 192, -220, -136, 1000, -52, 372, -96, -624, 124, -24, 396,
+ 540, -12, -104, 640, 464, 244, -208, -84, 368, -528, -740,
+ 248, -968, -848, 608, 376, -60, -292, -40, -156, 252, -292,
+ 248, 224, -280, 400, -244, 244, -60, 76, -80, 212, 532,
+ 340, 128, -36, 824, -352, -60, -264, -96, -612, 416, -704,
+ 220, -204, 640, -160, 1220, -408, 900, 336, 20, -336, -96,
+ -792, 304, 48, -28, -1232, -1172, -448, 104, -292, -520, 244,
+ 60, -948, 0, -708, 268, 108, 356, -548, 488, -344, -136,
+ 488, -196, -224, 656, -236, -1128, 60, 4, 140, 276, -676,
+ -376, 168, -108, 464, 8, 564, 64, 240, 308, -300, -400,
+ -456, -136, 56, 120, -408, -116, 436, 504, -232, 328, 844,
+ -164, -84, 784, -168, 232, -224, 348, -376, 128, 568, 96,
+ -1244, -288, 276, 848, 832, -360, 656, 464, -384, -332, -356,
+ 728, -388, 160, -192, 468, 296, 224, 140, -776, -100, 280,
+ 4, 196, 44, -36, -648, 932, 16, 1428, 28, 528, 808,
+ 772, 20, 268, 88, -332, -284, 124, -384, -448, 208, -228,
+ -1044, -328, 660, 380, -148, -300, 588, 240, 540, 28, 136,
+ -88, -436, 256, 296, -1000, 1400, 0, -48, 1056, -136, 264,
+ -528, -1108, 632, -484, -592, -344, 796, 124, -668, -768, 388,
+ 1296, -232, -188, -200, -288, -4, 308, 100, -168, 256, -500,
+ 204, -508, 648, -136, 372, -272, -120, -1004, -552, -548, -384,
+ 548, -296, 428, -108, -8, -912, -324, -224, -88, -112, -220,
+ -100, 996, -796, 548, 360, -216, 180, 428, -200, -212, 148,
+ 96, 148, 284, 216, -412, -320, 120, -300, -384, -604, -572,
+ -332, -8, -180, -176, 696, 116, -88, 628, 76, 44, -516,
+ 240, -208, -40, 100, -592, 344, -308, -452, -228, 20, 916,
+ -1752, -136, -340, -804, 140, 40, 512, 340, 248, 184, -492,
+ 896, -156, 932, -628, 328, -688, -448, -616, -752, -100, 560,
+ -1020, 180, -800, -64, 76, 576, 1068, 396, 660, 552, -108,
+ -28, 320, -628, 312, -92, -92, -472, 268, 16, 560, 516,
+ -672, -52, 492, -100, 260, 384, 284, 292, 304, -148, 88,
+ -152, 1012, 1064, -228, 164, -376, -684, 592, -392, 156, 196,
+ -524, -64, -884, 160, -176, 636, 648, 404, -396, -436, 864,
+ 424, -728, 988, -604, 904, -592, 296, -224, 536, -176, -920,
+ 436, -48, 1176, -884, 416, -776, -824, -884, 524, -548, -564,
+ -68, -164, -96, 692, 364, -692, -1012, -68, 260, -480, 876,
+ -1116, 452, -332, -352, 892, -1088, 1220, -676, 12, -292, 244,
+ 496, 372, -32, 280, 200, 112, -440, -96, 24, -644, -184,
+ 56, -432, 224, -980, 272, -260, 144, -436, 420, 356, 364,
+ -528, 76, 172, -744, -368, 404, -752, -416, 684, -688, 72,
+ 540, 416, 92, 444, 480, -72, -1416, 164, -1172, -68, 24,
+ 424, 264, 1040, 128, -912, -524, -356, 64, 876, -12, 4,
+ -88, 532, 272, -524, 320, 276, -508, 940, 24, -400, -120,
+ 756, 60, 236, -412, 100, 376, -484, 400, -100, -740, -108,
+ -260, 328, -268, 224, -200, -416, 184, -604, -564, -20, 296,
+ 60, 892, -888, 60, 164, 68, -760, 216, -296, 904, -336,
+ -28, 404, -356, -568, -208, -1480, -512, 296, 328, -360, -164,
+ -1560, -776, 1156, -428, 164, -504, -112, 120, -216, -148, -264,
+ 308, 32, 64, -72, 72, 116, 176, -64, -272, 460, -536,
+ -784, -280, 348, 108, -752, -132, 524, -540, -776, 116, -296,
+ -1196, -288, -560, 1040, -472, 116, -848, -1116, 116, 636, 696,
+ 284, -176, 1016, 204, -864, -648, -248, 356, 972, -584, -204,
+ 264, 880, 528, -24, -184, 116, 448, -144, 828, 524, 212,
+ -212, 52, 12, 200, 268, -488, -404, -880, 824, -672, -40,
+ 908, -248, 500, 716, -576, 492, -576, 16, 720, -108, 384,
+ 124, 344, 280, 576, -500, 252, 104, -308, 196, -188, -8,
+ 1268, 296, 1032, -1196, 436, 316, 372, -432, -200, -660, 704,
+ -224, 596, -132, 268, 32, -452, 884, 104, -1008, 424, -1348,
+ -280, 4, -1168, 368, 476, 696, 300, -8, 24, 180, -592,
+ -196, 388, 304, 500, 724, -160, 244, -84, 272, -256, -420,
+ 320, 208, -144, -156, 156, 364, 452, 28, 540, 316, 220,
+ -644, -248, 464, 72, 360, 32, -388, 496, -680, -48, 208,
+ -116, -408, 60, -604, -392, 548, -840, 784, -460, 656, -544,
+ -388, -264, 908, -800, -628, -612, -568, 572, -220, 164, 288,
+ -16, -308, 308, -112, -636, -760, 280, -668, 432, 364, 240,
+ -196, 604, 340, 384, 196, 592, -44, -500, 432, -580, -132,
+ 636, -76, 392, 4, -412, 540, 508, 328, -356, -36, 16,
+ -220, -64, -248, -60, 24, -192, 368, 1040, 92, -24, -1044,
+ -32, 40, 104, 148, 192, -136, -520, 56, -816, -224, 732,
+ 392, 356, 212, -80, -424, -1008, -324, 588, -1496, 576, 460,
+ -816, -848, 56, -580, -92, -1372, -112, -496, 200, 364, 52,
+ -140, 48, -48, -60, 84, 72, 40, 132, -356, -268, -104,
+ -284, -404, 732, -520, 164, -304, -540, 120, 328, -76, -460,
+ 756, 388, 588, 236, -436, -72, -176, -404, -316, -148, 716,
+ -604, 404, -72, -88, -888, -68, 944, 88, -220, -344, 960,
+ 472, 460, -232, 704, 120, 832, -228, 692, -508, 132, -476,
+ 844, -748, -364, -44, 1116, -1104, -1056, 76, 428, 552, -692,
+ 60, 356, 96, -384, -188, -612, -576, 736, 508, 892, 352,
+ -1132, 504, -24, -352, 324, 332, -600, -312, 292, 508, -144,
+ -8, 484, 48, 284, -260, -240, 256, -100, -292, -204, -44,
+ 472, -204, 908, -188, -1000, -256, 92, 1164, -392, 564, 356,
+ 652, -28, -884, 256, 484, -192, 760, -176, 376, -524, -452,
+ -436, 860, -736, 212, 124, 504, -476, 468, 76, -472, 552,
+ -692, -944, -620, 740, -240, 400, 132, 20, 192, -196, 264,
+ -668, -1012, -60, 296, -316, -828, 76, -156, 284, -768, -448,
+ -832, 148, 248, 652, 616, 1236, 288, -328, -400, -124, 588,
+ 220, 520, -696, 1032, 768, -740, -92, -272, 296, 448, -464,
+ 412, -200, 392, 440, -200, 264, -152, -260, 320, 1032, 216,
+ 320, -8, -64, 156, -1016, 1084, 1172, 536, 484, -432, 132,
+ 372, -52, -256, 84, 116, -352, 48, 116, 304, -384, 412,
+ 924, -300, 528, 628, 180, 648, 44, -980, -220, 1320, 48,
+ 332, 748, 524, -268, -720, 540, -276, 564, -344, -208, -196,
+ 436, 896, 88, -392, 132, 80, -964, -288, 568, 56, -48,
+ -456, 888, 8, 552, -156, -292, 948, 288, 128, -716, -292,
+ 1192, -152, 876, 352, -600, -260, -812, -468, -28, -120, -32,
+ -44, 1284, 496, 192, 464, 312, -76, -516, -380, -456, -1012,
+ -48, 308, -156, 36, 492, -156, -808, 188, 1652, 68, -120,
+ -116, 316, 160, -140, 352, 808, -416, 592, 316, -480, 56,
+ 528, -204, -568, 372, -232, 752, -344, 744, -4, 324, -416,
+ -600, 768, 268, -248, -88, -132, -420, -432, 80, -288, 404,
+ -316, -1216, -588, 520, -108, 92, -320, 368, -480, -216, -92,
+ 1688, -300, 180, 1020, -176, 820, -68, -228, -260, 436, -904,
+ 20, 40, -508, 440, -736, 312, 332, 204, 760, -372, 728,
+ 96, -20, -632, -520, -560, 336, 1076, -64, -532, 776, 584,
+ 192, 396, -728, -520, 276, -188, 80, -52, -612, -252, -48,
+ 648, 212, -688, 228, -52, -260, 428, -412, -272, -404, 180,
+ 816, -796, 48, 152, 484, -88, -216, 988, 696, 188, -528,
+ 648, -116, -180, 316, 476, 12, -564, 96, 476, -252, -364,
+ -376, -392, 556, -256, -576, 260, -352, 120, -16, -136, -260,
+ -492, 72, 556, 660, 580, 616, 772, 436, 424, -32, -324,
+ -1268, 416, -324, -80, 920, 160, 228, 724, 32, -516, 64,
+ 384, 68, -128, 136, 240, 248, -204, -68, 252, -932, -120,
+ -480, -628, -84, 192, 852, -404, -288, -132, 204, 100, 168,
+ -68, -196, -868, 460, 1080, 380, -80, 244, 0, 484, -888,
+ 64, 184, 352, 600, 460, 164, 604, -196, 320, -64, 588,
+ -184, 228, 12, 372, 48, -848, -344, 224, 208, -200, 484,
+ 128, -20, 272, -468, -840, 384, 256, -720, -520, -464, -580,
+ 112, -120, 644, -356, -208, -608, -528, 704, 560, -424, 392,
+ 828, 40, 84, 200, -152, 0, -144, 584, 280, -120, 80,
+ -556, -972, -196, -472, 724, 80, 168, -32, 88, 160, -688,
+ 0, 160, 356, 372, -776, 740, -128, 676, -248, -480, 4,
+ -364, 96, 544, 232, -1032, 956, 236, 356, 20, -40, 300,
+ 24, -676, -596, 132, 1120, -104, 532, -1096, 568, 648, 444,
+ 508, 380, 188, -376, -604, 1488, 424, 24, 756, -220, -192,
+ 716, 120, 920, 688, 168, 44, -460, 568, 284, 1144, 1160,
+ 600, 424, 888, 656, -356, -320, 220, 316, -176, -724, -188,
+ -816, -628, -348, -228, -380, 1012, -452, -660, 736, 928, 404,
+ -696, -72, -268, -892, 128, 184, -344, -780, 360, 336, 400,
+ 344, 428, 548, -112, 136, -228, -216, -820, -516, 340, 92,
+ -136, 116, -300, 376, -244, 100, -316, -520, -284, -12, 824,
+ 164, -548, -180, -128, 116, -924, -828, 268, -368, -580, 620,
+ 192, 160, 0, -1676, 1068, 424, -56, -360, 468, -156, 720,
+ 288, -528, 556, -364, 548, -148, 504, 316, 152, -648, -620,
+ -684, -24, -376, -384, -108, -920, -1032, 768, 180, -264, -508,
+ -1268, -260, -60, 300, -240, 988, 724, -376, -576, -212, -736,
+ 556, 192, 1092, -620, -880, 376, -56, -4, -216, -32, 836,
+ 268, 396, 1332, 864, -600, 100, 56, -412, -92, 356, 180,
+ 884, -468, -436, 292, -388, -804, -704, -840, 368, -348, 140,
+ -724, 1536, 940, 372, 112, -372, 436, -480, 1136, 296, -32,
+ -228, 132, -48, -220, 868, -1016, -60, -1044, -464, 328, 916,
+ 244, 12, -736, -296, 360, 468, -376, -108, -92, 788, 368,
+ -56, 544, 400, -672, -420, 728, 16, 320, 44, -284, -380,
+ -796, 488, 132, 204, -596, -372, 88, -152, -908, -636, -572,
+ -624, -116, -692, -200, -56, 276, -88, 484, -324, 948, 864,
+ 1000, -456, -184, -276, 292, -296, 156, 676, 320, 160, 908,
+ -84, -1236, -288, -116, 260, -372, -644, 732, -756, -96, 84,
+ 344, -520, 348, -688, 240, -84, 216, -1044, -136, -676, -396,
+ -1500, 960, -40, 176, 168, 1516, 420, -504, -344, -364, -360,
+ 1216, -940, -380, -212, 252, -660, -708, 484, -444, -152, 928,
+ -120, 1112, 476, -260, 560, -148, -344, 108, -196, 228, -288,
+ 504, 560, -328, -88, 288, -1008, 460, -228, 468, -836, -196,
+ 76, 388, 232, 412, -1168, -716, -644, 756, -172, -356, -504,
+ 116, 432, 528, 48, 476, -168, -608, 448, 160, -532, -272,
+ 28, -676, -12, 828, 980, 456, 520, 104, -104, 256, -344,
+ -4, -28, -368, -52, -524, -572, -556, -200, 768, 1124, -208,
+ -512, 176, 232, 248, -148, -888, 604, -600, -304, 804, -156,
+ -212, 488, -192, -804, -256, 368, -360, -916, -328, 228, -240,
+ -448, -472, 856, -556, -364, 572, -12, -156, -368, -340, 432,
+ 252, -752, -152, 288, 268, -580, -848, -592, 108, -76, 244,
+ 312, -716, 592, -80, 436, 360, 4, -248, 160, 516, 584,
+ 732, 44, -468, -280, -292, -156, -588, 28, 308, 912, 24,
+ 124, 156, 180, -252, 944, -924, -772, -520, -428, -624, 300,
+ -212, -1144, 32, -724, 800, -1128, -212, -1288, -848, 180, -416,
+ 440, 192, -576, -792, -76, -1080, 80, -532, -352, -132, 380,
+ -820, 148, 1112, 128, 164, 456, 700, -924, 144, -668, -384,
+ 648, -832, 508, 552, -52, -100, -656, 208, -568, 748, -88,
+ 680, 232, 300, 192, -408, -1012, -152, -252, -268, 272, -876,
+ -664, -648, -332, -136, 16, 12, 1152, -28, 332, -536, 320,
+ -672, -460, -316, 532, -260, 228, -40, 1052, -816, 180, 88,
+ -496, -556, -672, -368, 428, 92, 356, 404, -408, 252, 196,
+ -176, -556, 792, 268, 32, 372, 40, 96, -332, 328, 120,
+ 372, -900, -40, 472, -264, -592, 952, 128, 656, 112, 664,
+ -232, 420, 4, -344, -464, 556, 244, -416, -32, 252, 0,
+ -412, 188, -696, 508, -476, 324, -1096, 656, -312, 560, 264,
+ -136, 304, 160, -64, -580, 248, 336, -720, 560, -348, -288,
+ -276, -196, -500, 852, -544, -236, -1128, -992, -776, 116, 56,
+ 52, 860, 884, 212, -12, 168, 1020, 512, -552, 924, -148,
+ 716, 188, 164, -340, -520, -184, 880, -152, -680, -208, -1156,
+ -300, -528, -472, 364, 100, -744, -1056, -32, 540, 280, 144,
+ -676, -32, -232, -280, -224, 96, 568, -76, 172, 148, 148,
+ 104, 32, -296, -32, 788, -80, 32, -16, 280, 288, 944,
+ 428, -484
+};
diff --git a/libavcodec/aom_film_grain.h b/libavcodec/aom_film_grain.h
new file mode 100644
index 00000000000..5d772bd7d17
--- /dev/null
+++ b/libavcodec/aom_film_grain.h
@@ -0,0 +1,38 @@
+/*
+ * AOM film grain synthesis
+ * Copyright (c) 2021 Niklas Haas <ffmpeg@haasn.xyz>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * AOM film grain synthesis.
+ * @author Niklas Haas <ffmpeg@haasn.xyz>
+ */
+
+#ifndef AVCODEC_AOM_FILM_GRAIN_H
+#define AVCODEC_AOM_FILM_GRAIN_H
+
+#include "libavutil/film_grain_params.h"
+
+// Synthesizes film grain on top of `in` and stores the result to `out`. `out`
+// must already have been allocated and set to the same size and format as `in`.
+int ff_aom_apply_film_grain(AVFrame *out, const AVFrame *in,
+ const AVFilmGrainParams *params);
+
+#endif /* AVCODEC_AOM_FILM_GRAIN_H */
diff --git a/libavcodec/aom_film_grain_template.c b/libavcodec/aom_film_grain_template.c
new file mode 100644
index 00000000000..5f9f29f1fab
--- /dev/null
+++ b/libavcodec/aom_film_grain_template.c
@@ -0,0 +1,577 @@
+/*
+ * AOM film grain synthesis
+ * Copyright (c) 2023 Niklas Haas <ffmpeg@haasn.xyz>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/*
+ * Copyright © 2018, Niklas Haas
+ * Copyright © 2018, VideoLAN and dav1d authors
+ * Copyright © 2018, Two Orioles, LLC
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice, this
+ * list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
+ * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "bit_depth_template.c"
+
+#undef entry
+#undef bitdepth
+#undef bitdepth_max
+#undef HBD_DECL
+#undef HBD_CALL
+#undef SCALING_SIZE
+
+#if BIT_DEPTH > 8
+# define entry int16_t
+# define bitdepth_max ((1 << bitdepth) - 1)
+# define HBD_DECL , const int bitdepth
+# define HBD_CALL , bitdepth
+# define SCALING_SIZE 4096
+#else
+# define entry int8_t
+# define bitdepth 8
+# define bitdepth_max UINT8_MAX
+# define HBD_DECL
+# define HBD_CALL
+# define SCALING_SIZE 256
+#endif
+
+static void FUNC(generate_grain_y_c)(entry buf[][GRAIN_WIDTH],
+ const AVFilmGrainParams *const params
+ HBD_DECL)
+{
+ const AVFilmGrainAOMParams *const data = ¶ms->codec.aom;
+ const int bitdepth_min_8 = bitdepth - 8;
+ unsigned seed = params->seed;
+ const int shift = 4 - bitdepth_min_8 + data->grain_scale_shift;
+ const int grain_ctr = 128 << bitdepth_min_8;
+ const int grain_min = -grain_ctr, grain_max = grain_ctr - 1;
+
+ const int ar_pad = 3;
+ const int ar_lag = data->ar_coeff_lag;
+
+ for (int y = 0; y < GRAIN_HEIGHT; y++) {
+ for (int x = 0; x < GRAIN_WIDTH; x++) {
+ const int value = get_random_number(11, &seed);
+ buf[y][x] = round2(gaussian_sequence[ value ], shift);
+ }
+ }
+
+ for (int y = ar_pad; y < GRAIN_HEIGHT; y++) {
+ for (int x = ar_pad; x < GRAIN_WIDTH - ar_pad; x++) {
+ const int8_t *coeff = data->ar_coeffs_y;
+ int sum = 0, grain;
+ for (int dy = -ar_lag; dy <= 0; dy++) {
+ for (int dx = -ar_lag; dx <= ar_lag; dx++) {
+ if (!dx && !dy)
+ break;
+ sum += *(coeff++) * buf[y + dy][x + dx];
+ }
+ }
+
+ grain = buf[y][x] + round2(sum, data->ar_coeff_shift);
+ buf[y][x] = av_clip(grain, grain_min, grain_max);
+ }
+ }
+}
+
+static void
+FUNC(generate_grain_uv_c)(entry buf[][GRAIN_WIDTH],
+ const entry buf_y[][GRAIN_WIDTH],
+ const AVFilmGrainParams *const params, const intptr_t uv,
+ const int subx, const int suby HBD_DECL)
+{
+ const AVFilmGrainAOMParams *const data = ¶ms->codec.aom;
+ const int bitdepth_min_8 = bitdepth - 8;
+ unsigned seed = params->seed ^ (uv ? 0x49d8 : 0xb524);
+ const int shift = 4 - bitdepth_min_8 + data->grain_scale_shift;
+ const int grain_ctr = 128 << bitdepth_min_8;
+ const int grain_min = -grain_ctr, grain_max = grain_ctr - 1;
+
+ const int chromaW = subx ? SUB_GRAIN_WIDTH : GRAIN_WIDTH;
+ const int chromaH = suby ? SUB_GRAIN_HEIGHT : GRAIN_HEIGHT;
+
+ const int ar_pad = 3;
+ const int ar_lag = data->ar_coeff_lag;
+
+ for (int y = 0; y < chromaH; y++) {
+ for (int x = 0; x < chromaW; x++) {
+ const int value = get_random_number(11, &seed);
+ buf[y][x] = round2(gaussian_sequence[ value ], shift);
+ }
+ }
+
+ for (int y = ar_pad; y < chromaH; y++) {
+ for (int x = ar_pad; x < chromaW - ar_pad; x++) {
+ const int8_t *coeff = data->ar_coeffs_uv[uv];
+ int sum = 0, grain;
+ for (int dy = -ar_lag; dy <= 0; dy++) {
+ for (int dx = -ar_lag; dx <= ar_lag; dx++) {
+ // For the final (current) pixel, we need to add in the
+ // contribution from the luma grain texture
+ if (!dx && !dy) {
+ const int lumaX = ((x - ar_pad) << subx) + ar_pad;
+ const int lumaY = ((y - ar_pad) << suby) + ar_pad;
+ int luma = 0;
+ if (!data->num_y_points)
+ break;
+ for (int i = 0; i <= suby; i++) {
+ for (int j = 0; j <= subx; j++) {
+ luma += buf_y[lumaY + i][lumaX + j];
+ }
+ }
+ luma = round2(luma, subx + suby);
+ sum += luma * (*coeff);
+ break;
+ }
+
+ sum += *(coeff++) * buf[y + dy][x + dx];
+ }
+ }
+
+ grain = buf[y][x] + round2(sum, data->ar_coeff_shift);
+ buf[y][x] = av_clip(grain, grain_min, grain_max);
+ }
+ }
+}
+
+// samples from the correct block of a grain LUT, while taking into account the
+// offsets provided by the offsets cache
+static inline entry FUNC(sample_lut)(const entry grain_lut[][GRAIN_WIDTH],
+ const int offsets[2][2],
+ const int subx, const int suby,
+ const int bx, const int by,
+ const int x, const int y)
+{
+ const int randval = offsets[bx][by];
+ const int offx = 3 + (2 >> subx) * (3 + (randval >> 4));
+ const int offy = 3 + (2 >> suby) * (3 + (randval & 0xF));
+ return grain_lut[offy + y + (FG_BLOCK_SIZE >> suby) * by]
+ [offx + x + (FG_BLOCK_SIZE >> subx) * bx];
+}
+
+static void FUNC(fgy_32x32xn_c)(pixel *const dst_row, const pixel *const src_row,
+ const ptrdiff_t stride,
+ const AVFilmGrainParams *const params, const size_t pw,
+ const uint8_t scaling[SCALING_SIZE],
+ const entry grain_lut[][GRAIN_WIDTH],
+ const int bh, const int row_num HBD_DECL)
+{
+ const AVFilmGrainAOMParams *const data = ¶ms->codec.aom;
+ const int rows = 1 + (data->overlap_flag && row_num > 0);
+ const int bitdepth_min_8 = bitdepth - 8;
+ const int grain_ctr = 128 << bitdepth_min_8;
+ const int grain_min = -grain_ctr, grain_max = grain_ctr - 1;
+ unsigned seed[2];
+ int offsets[2 /* col offset */][2 /* row offset */];
+
+ int min_value, max_value;
+ if (data->limit_output_range) {
+ min_value = 16 << bitdepth_min_8;
+ max_value = 235 << bitdepth_min_8;
+ } else {
+ min_value = 0;
+ max_value = bitdepth_max;
+ }
+
+ // seed[0] contains the current row, seed[1] contains the previous
+ for (int i = 0; i < rows; i++) {
+ seed[i] = params->seed;
+ seed[i] ^= (((row_num - i) * 37 + 178) & 0xFF) << 8;
+ seed[i] ^= (((row_num - i) * 173 + 105) & 0xFF);
+ }
+
+ av_assert1(stride % (FG_BLOCK_SIZE * sizeof(pixel)) == 0);
+
+ // process this row in FG_BLOCK_SIZE^2 blocks
+ for (unsigned bx = 0; bx < pw; bx += FG_BLOCK_SIZE) {
+ const int bw = FFMIN(FG_BLOCK_SIZE, (int) pw - bx);
+ const pixel *src;
+ pixel *dst;
+ int noise;
+
+ // x/y block offsets to compensate for overlapped regions
+ const int ystart = data->overlap_flag && row_num ? FFMIN(2, bh) : 0;
+ const int xstart = data->overlap_flag && bx ? FFMIN(2, bw) : 0;
+
+ static const int w[2][2] = { { 27, 17 }, { 17, 27 } };
+
+ if (data->overlap_flag && bx) {
+ // shift previous offsets left
+ for (int i = 0; i < rows; i++)
+ offsets[1][i] = offsets[0][i];
+ }
+
+ // update current offsets
+ for (int i = 0; i < rows; i++)
+ offsets[0][i] = get_random_number(8, &seed[i]);
+
+#define add_noise_y(x, y, grain) \
+ src = (const pixel*)((const char*)src_row + (y) * stride) + (x) + bx; \
+ dst = (pixel*)((char*)dst_row + (y) * stride) + (x) + bx; \
+ noise = round2(scaling[ *src ] * (grain), data->scaling_shift); \
+ *dst = av_clip(*src + noise, min_value, max_value);
+
+ for (int y = ystart; y < bh; y++) {
+ // Non-overlapped image region (straightforward)
+ for (int x = xstart; x < bw; x++) {
+ int grain = FUNC(sample_lut)(grain_lut, offsets, 0, 0, 0, 0, x, y);
+ add_noise_y(x, y, grain);
+ }
+
+ // Special case for overlapped column
+ for (int x = 0; x < xstart; x++) {
+ int grain = FUNC(sample_lut)(grain_lut, offsets, 0, 0, 0, 0, x, y);
+ int old = FUNC(sample_lut)(grain_lut, offsets, 0, 0, 1, 0, x, y);
+ grain = round2(old * w[x][0] + grain * w[x][1], 5);
+ grain = av_clip(grain, grain_min, grain_max);
+ add_noise_y(x, y, grain);
+ }
+ }
+
+ for (int y = 0; y < ystart; y++) {
+ // Special case for overlapped row (sans corner)
+ for (int x = xstart; x < bw; x++) {
+ int grain = FUNC(sample_lut)(grain_lut, offsets, 0, 0, 0, 0, x, y);
+ int old = FUNC(sample_lut)(grain_lut, offsets, 0, 0, 0, 1, x, y);
+ grain = round2(old * w[y][0] + grain * w[y][1], 5);
+ grain = av_clip(grain, grain_min, grain_max);
+ add_noise_y(x, y, grain);
+ }
+
+ // Special case for doubly-overlapped corner
+ for (int x = 0; x < xstart; x++) {
+ int grain = FUNC(sample_lut)(grain_lut, offsets, 0, 0, 0, 0, x, y);
+ int top = FUNC(sample_lut)(grain_lut, offsets, 0, 0, 0, 1, x, y);
+ int old = FUNC(sample_lut)(grain_lut, offsets, 0, 0, 1, 1, x, y);
+
+ // Blend the top pixel with the top left block
+ top = round2(old * w[x][0] + top * w[x][1], 5);
+ top = av_clip(top, grain_min, grain_max);
+
+ // Blend the current pixel with the left block
+ old = FUNC(sample_lut)(grain_lut, offsets, 0, 0, 1, 0, x, y);
+ grain = round2(old * w[x][0] + grain * w[x][1], 5);
+ grain = av_clip(grain, grain_min, grain_max);
+
+ // Mix the row rows together and apply grain
+ grain = round2(top * w[y][0] + grain * w[y][1], 5);
+ grain = av_clip(grain, grain_min, grain_max);
+ add_noise_y(x, y, grain);
+ }
+ }
+ }
+}
+
+static void
+FUNC(fguv_32x32xn_c)(pixel *const dst_row, const pixel *const src_row,
+ const ptrdiff_t stride, const AVFilmGrainParams *const params,
+ const size_t pw, const uint8_t scaling[SCALING_SIZE],
+ const entry grain_lut[][GRAIN_WIDTH], const int bh,
+ const int row_num, const pixel *const luma_row,
+ const ptrdiff_t luma_stride, const int uv, const int is_id,
+ const int sx, const int sy HBD_DECL)
+{
+ const AVFilmGrainAOMParams *const data = ¶ms->codec.aom;
+ const int rows = 1 + (data->overlap_flag && row_num > 0);
+ const int bitdepth_min_8 = bitdepth - 8;
+ const int grain_ctr = 128 << bitdepth_min_8;
+ const int grain_min = -grain_ctr, grain_max = grain_ctr - 1;
+ unsigned seed[2];
+ int offsets[2 /* col offset */][2 /* row offset */];
+
+ int min_value, max_value;
+ if (data->limit_output_range) {
+ min_value = 16 << bitdepth_min_8;
+ max_value = (is_id ? 235 : 240) << bitdepth_min_8;
+ } else {
+ min_value = 0;
+ max_value = bitdepth_max;
+ }
+
+ // seed[0] contains the current row, seed[1] contains the previous
+ for (int i = 0; i < rows; i++) {
+ seed[i] = params->seed;
+ seed[i] ^= (((row_num - i) * 37 + 178) & 0xFF) << 8;
+ seed[i] ^= (((row_num - i) * 173 + 105) & 0xFF);
+ }
+
+ av_assert1(stride % (FG_BLOCK_SIZE * sizeof(pixel)) == 0);
+
+ // process this row in FG_BLOCK_SIZE^2 blocks (subsampled)
+ for (unsigned bx = 0; bx < pw; bx += FG_BLOCK_SIZE >> sx) {
+ const int bw = FFMIN(FG_BLOCK_SIZE >> sx, (int)(pw - bx));
+ int val, lx, ly, noise;
+ const pixel *src, *luma;
+ pixel *dst, avg;
+
+ // x/y block offsets to compensate for overlapped regions
+ const int ystart = data->overlap_flag && row_num ? FFMIN(2 >> sy, bh) : 0;
+ const int xstart = data->overlap_flag && bx ? FFMIN(2 >> sx, bw) : 0;
+
+ static const int w[2 /* sub */][2 /* off */][2] = {
+ { { 27, 17 }, { 17, 27 } },
+ { { 23, 22 } },
+ };
+
+ if (data->overlap_flag && bx) {
+ // shift previous offsets left
+ for (int i = 0; i < rows; i++)
+ offsets[1][i] = offsets[0][i];
+ }
+
+ // update current offsets
+ for (int i = 0; i < rows; i++)
+ offsets[0][i] = get_random_number(8, &seed[i]);
+
+#define add_noise_uv(x, y, grain) \
+ lx = (bx + x) << sx; \
+ ly = y << sy; \
+ luma = (const pixel*)((const char*)luma_row + ly * luma_stride) + lx;\
+ avg = luma[0]; \
+ if (sx) \
+ avg = (avg + luma[1] + 1) >> 1; \
+ src = (const pixel*)((const char *)src_row + (y) * stride) + bx + (x);\
+ dst = (pixel *) ((char *) dst_row + (y) * stride) + bx + (x); \
+ val = avg; \
+ if (!data->chroma_scaling_from_luma) { \
+ const int combined = avg * data->uv_mult_luma[uv] + \
+ *src * data->uv_mult[uv]; \
+ val = av_clip( (combined >> 6) + \
+ (data->uv_offset[uv] * (1 << bitdepth_min_8)), \
+ 0, bitdepth_max ); \
+ } \
+ noise = round2(scaling[ val ] * (grain), data->scaling_shift); \
+ *dst = av_clip(*src + noise, min_value, max_value);
+
+ for (int y = ystart; y < bh; y++) {
+ // Non-overlapped image region (straightforward)
+ for (int x = xstart; x < bw; x++) {
+ int grain = FUNC(sample_lut)(grain_lut, offsets, sx, sy, 0, 0, x, y);
+ add_noise_uv(x, y, grain);
+ }
+
+ // Special case for overlapped column
+ for (int x = 0; x < xstart; x++) {
+ int grain = FUNC(sample_lut)(grain_lut, offsets, sx, sy, 0, 0, x, y);
+ int old = FUNC(sample_lut)(grain_lut, offsets, sx, sy, 1, 0, x, y);
+ grain = round2(old * w[sx][x][0] + grain * w[sx][x][1], 5);
+ grain = av_clip(grain, grain_min, grain_max);
+ add_noise_uv(x, y, grain);
+ }
+ }
+
+ for (int y = 0; y < ystart; y++) {
+ // Special case for overlapped row (sans corner)
+ for (int x = xstart; x < bw; x++) {
+ int grain = FUNC(sample_lut)(grain_lut, offsets, sx, sy, 0, 0, x, y);
+ int old = FUNC(sample_lut)(grain_lut, offsets, sx, sy, 0, 1, x, y);
+ grain = round2(old * w[sy][y][0] + grain * w[sy][y][1], 5);
+ grain = av_clip(grain, grain_min, grain_max);
+ add_noise_uv(x, y, grain);
+ }
+
+ // Special case for doubly-overlapped corner
+ for (int x = 0; x < xstart; x++) {
+ int top = FUNC(sample_lut)(grain_lut, offsets, sx, sy, 0, 1, x, y);
+ int old = FUNC(sample_lut)(grain_lut, offsets, sx, sy, 1, 1, x, y);
+ int grain = FUNC(sample_lut)(grain_lut, offsets, sx, sy, 0, 0, x, y);
+
+ // Blend the top pixel with the top left block
+ top = round2(old * w[sx][x][0] + top * w[sx][x][1], 5);
+ top = av_clip(top, grain_min, grain_max);
+
+ // Blend the current pixel with the left block
+ old = FUNC(sample_lut)(grain_lut, offsets, sx, sy, 1, 0, x, y);
+ grain = round2(old * w[sx][x][0] + grain * w[sx][x][1], 5);
+ grain = av_clip(grain, grain_min, grain_max);
+
+ // Mix the row rows together and apply to image
+ grain = round2(top * w[sy][y][0] + grain * w[sy][y][1], 5);
+ grain = av_clip(grain, grain_min, grain_max);
+ add_noise_uv(x, y, grain);
+ }
+ }
+ }
+}
+
+static void FUNC(generate_scaling)(const uint8_t points[][2], const int num,
+ uint8_t scaling[SCALING_SIZE] HBD_DECL)
+{
+ const int shift_x = bitdepth - 8;
+ const int scaling_size = 1 << bitdepth;
+ const int max_value = points[num - 1][0] << shift_x;
+ av_assert0(scaling_size <= SCALING_SIZE);
+
+ if (num == 0) {
+ memset(scaling, 0, scaling_size);
+ return;
+ }
+
+ // Fill up the preceding entries with the initial value
+ memset(scaling, points[0][1], points[0][0] << shift_x);
+
+ // Linearly interpolate the values in the middle
+ for (int i = 0; i < num - 1; i++) {
+ const int bx = points[i][0];
+ const int by = points[i][1];
+ const int ex = points[i+1][0];
+ const int ey = points[i+1][1];
+ const int dx = ex - bx;
+ const int dy = ey - by;
+ const int delta = dy * ((0x10000 + (dx >> 1)) / dx);
+ av_assert1(dx > 0);
+ for (int x = 0, d = 0x8000; x < dx; x++) {
+ scaling[(bx + x) << shift_x] = by + (d >> 16);
+ d += delta;
+ }
+ }
+
+ // Fill up the remaining entries with the final value
+ memset(&scaling[max_value], points[num - 1][1], scaling_size - max_value);
+
+#if BIT_DEPTH != 8
+ for (int i = 0; i < num - 1; i++) {
+ const int pad = 1 << shift_x, rnd = pad >> 1;
+ const int bx = points[i][0] << shift_x;
+ const int ex = points[i+1][0] << shift_x;
+ const int dx = ex - bx;
+ for (int x = 0; x < dx; x += pad) {
+ const int range = scaling[bx + x + pad] - scaling[bx + x];
+ for (int n = 1, r = rnd; n < pad; n++) {
+ r += range;
+ scaling[bx + x + n] = scaling[bx + x] + (r >> shift_x);
+ }
+ }
+ }
+#endif
+}
+
+static av_always_inline void
+FUNC(apply_grain_row)(AVFrame *out, const AVFrame *in,
+ const int ss_x, const int ss_y,
+ const uint8_t scaling[3][SCALING_SIZE],
+ const entry grain_lut[3][GRAIN_HEIGHT+1][GRAIN_WIDTH],
+ const AVFilmGrainParams *params,
+ const int row HBD_DECL)
+{
+ // Synthesize grain for the affected planes
+ const AVFilmGrainAOMParams *const data = ¶ms->codec.aom;
+ const int cpw = (out->width + ss_x) >> ss_x;
+ const int is_id = out->colorspace == AVCOL_SPC_RGB;
+ const int bh = (FFMIN(out->height - row * FG_BLOCK_SIZE, FG_BLOCK_SIZE) + ss_y) >> ss_y;
+ const ptrdiff_t uv_off = row * FG_BLOCK_SIZE * out->linesize[1] >> ss_y;
+ pixel *const luma_src = (pixel *)
+ ((char *) in->data[0] + row * FG_BLOCK_SIZE * in->linesize[0]);
+
+ if (data->num_y_points) {
+ const int bh = FFMIN(out->height - row * FG_BLOCK_SIZE, FG_BLOCK_SIZE);
+ const ptrdiff_t off = row * FG_BLOCK_SIZE * out->linesize[0];
+ FUNC(fgy_32x32xn_c)((pixel *) ((char *) out->data[0] + off), luma_src,
+ out->linesize[0], params, out->width, scaling[0],
+ grain_lut[0], bh, row HBD_CALL);
+ }
+
+ if (!data->num_uv_points[0] && !data->num_uv_points[1] &&
+ !data->chroma_scaling_from_luma)
+ {
+ return;
+ }
+
+ // extend padding pixels
+ if (out->width & ss_x) {
+ pixel *ptr = luma_src;
+ for (int y = 0; y < bh; y++) {
+ ptr[out->width] = ptr[out->width - 1];
+ ptr = (pixel *) ((char *) ptr + (in->linesize[0] << ss_y));
+ }
+ }
+
+ if (data->chroma_scaling_from_luma) {
+ for (int pl = 0; pl < 2; pl++)
+ FUNC(fguv_32x32xn_c)((pixel *) ((char *) out->data[1 + pl] + uv_off),
+ (const pixel *) ((const char *) in->data[1 + pl] + uv_off),
+ in->linesize[1], params, cpw, scaling[0],
+ grain_lut[1 + pl], bh, row, luma_src,
+ in->linesize[0], pl, is_id, ss_x, ss_y HBD_CALL);
+ } else {
+ for (int pl = 0; pl < 2; pl++) {
+ if (data->num_uv_points[pl]) {
+ FUNC(fguv_32x32xn_c)((pixel *) ((char *) out->data[1 + pl] + uv_off),
+ (const pixel *) ((const char *) in->data[1 + pl] + uv_off),
+ in->linesize[1], params, cpw, scaling[1 + pl],
+ grain_lut[1 + pl], bh, row, luma_src,
+ in->linesize[0], pl, is_id, ss_x, ss_y HBD_CALL);
+ }
+ }
+ }
+}
+
+static int FUNC(apply_film_grain)(AVFrame *out_frame, const AVFrame *in_frame,
+ const AVFilmGrainParams *params HBD_DECL)
+{
+ entry grain_lut[3][GRAIN_HEIGHT + 1][GRAIN_WIDTH];
+ uint8_t scaling[3][SCALING_SIZE];
+
+ const AVFilmGrainAOMParams *const data = ¶ms->codec.aom;
+ const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(out_frame->format);
+ const int rows = AV_CEIL_RSHIFT(out_frame->height, 5); /* log2(FG_BLOCK_SIZE) */
+ const int subx = desc->log2_chroma_w, suby = desc->log2_chroma_h;
+
+ // Generate grain LUTs as needed
+ FUNC(generate_grain_y_c)(grain_lut[0], params HBD_CALL);
+ if (data->num_uv_points[0] || data->chroma_scaling_from_luma)
+ FUNC(generate_grain_uv_c)(grain_lut[1], grain_lut[0], params, 0, subx, suby HBD_CALL);
+ if (data->num_uv_points[1] || data->chroma_scaling_from_luma)
+ FUNC(generate_grain_uv_c)(grain_lut[2], grain_lut[0], params, 1, subx, suby HBD_CALL);
+
+ // Generate scaling LUTs as needed
+ if (data->num_y_points || data->chroma_scaling_from_luma)
+ FUNC(generate_scaling)(data->y_points, data->num_y_points, scaling[0] HBD_CALL);
+ if (data->num_uv_points[0])
+ FUNC(generate_scaling)(data->uv_points[0], data->num_uv_points[0], scaling[1] HBD_CALL);
+ if (data->num_uv_points[1])
+ FUNC(generate_scaling)(data->uv_points[1], data->num_uv_points[1], scaling[2] HBD_CALL);
+
+ for (int row = 0; row < rows; row++) {
+ FUNC(apply_grain_row)(out_frame, in_frame, subx, suby, scaling, grain_lut,
+ params, row HBD_CALL);
+ }
+
+ return 0;
+}
--
2.44.0
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^ permalink raw reply [flat|nested] 15+ messages in thread
* [FFmpeg-devel] [PATCH v3 7/9] avcodec/aom_film_grain: implement AFGS1 parsing
2024-03-15 11:58 [FFmpeg-devel] [PATCH v3 0/9] AFGS1 film grain support Niklas Haas
` (5 preceding siblings ...)
2024-03-15 11:58 ` [FFmpeg-devel] [PATCH v3 6/9] avcodec/aom_film_grain: add AOM film grain synthesis Niklas Haas
@ 2024-03-15 11:59 ` Niklas Haas
2024-03-15 11:59 ` [FFmpeg-devel] [PATCH v3 8/9] avcodec/h2645_sei: decode AFGS1 T.35 SEI Niklas Haas
2024-03-15 11:59 ` [FFmpeg-devel] [PATCH v3 9/9] avcodec/hevcdec: apply AOM film grain synthesis Niklas Haas
8 siblings, 0 replies; 15+ messages in thread
From: Niklas Haas @ 2024-03-15 11:59 UTC (permalink / raw)
To: ffmpeg-devel; +Cc: Niklas Haas
From: Niklas Haas <git@haasn.dev>
Based on the AOMedia Film Grain Synthesis 1 (AFGS1) spec:
https://aomediacodec.github.io/afgs1-spec/
The parsing has been changed substantially relative to the AV1 film
grain OBU. In particular:
1. There is the possibility of maintaining multiple independent film
grain parameter sets, and decoders/players are recommended to pick
the one most appropriate for the intended display resolution. This
could also be used to e.g. switch between different grain profiles
without having to re-signal the appropriate coefficients.
2. Supporting this, it's possible to *predict* the grain coefficients
from previously signalled parameter sets, transmitting only the
residual.
3. When not predicting, the parameter sets are now stored as a series of
increments, rather than being directly transmitted.
4. There are several new AFGS1-exclusive fields.
I placed this parser in its own file, rather than h2645_sei.c, since
nothing in the generic AFGS1 film grain payload is specific to T.35, and
to compartmentalize the code base.
---
libavcodec/aom_film_grain.c | 236 ++++++++++++++++++++++++++++++++++++
libavcodec/aom_film_grain.h | 13 ++
2 files changed, 249 insertions(+)
diff --git a/libavcodec/aom_film_grain.c b/libavcodec/aom_film_grain.c
index ffcd71b584b..ea38935ca98 100644
--- a/libavcodec/aom_film_grain.c
+++ b/libavcodec/aom_film_grain.c
@@ -29,6 +29,7 @@
#include "libavutil/imgutils.h"
#include "aom_film_grain.h"
+#include "get_bits.h"
// Common/shared helpers (not dependent on BIT_DEPTH)
static inline int get_random_number(const int bits, unsigned *const state) {
@@ -118,6 +119,241 @@ int ff_aom_apply_film_grain(AVFrame *out, const AVFrame *in,
return AVERROR_INVALIDDATA;
}
+int ff_aom_parse_film_grain_sets(AVFilmGrainAFGS1Params *s,
+ const uint8_t *payload, int payload_size)
+{
+ GetBitContext gbc, *gb = &gbc;
+ AVFilmGrainAOMParams *aom;
+ AVFilmGrainParams *fgp, *ref = NULL;
+ int ret, num_sets, n, i, uv, num_y_coeffs, update_grain, luma_only;
+
+ ret = init_get_bits8(gb, payload, payload_size);
+ if (ret < 0)
+ return ret;
+
+ s->enable = get_bits1(gb);
+ if (!s->enable)
+ return 0;
+
+ skip_bits(gb, 4); // reserved
+ num_sets = get_bits(gb, 3) + 1;
+ for (n = 0; n < num_sets; n++) {
+ int payload_4byte, payload_size, set_idx, apply_units_log2, vsc_flag;
+ int predict_scaling, predict_y_scaling, predict_uv_scaling[2];
+ int payload_bits, start_position;
+
+ start_position = get_bits_count(gb);
+ payload_4byte = get_bits1(gb);
+ payload_size = get_bits(gb, payload_4byte ? 2 : 8);
+ set_idx = get_bits(gb, 3);
+ fgp = &s->sets[set_idx];
+ aom = &fgp->codec.aom;
+
+ fgp->type = get_bits1(gb) ? AV_FILM_GRAIN_PARAMS_AV1 : AV_FILM_GRAIN_PARAMS_NONE;
+ if (!fgp->type)
+ continue;
+
+ fgp->seed = get_bits(gb, 16);
+ update_grain = get_bits1(gb);
+ if (!update_grain)
+ continue;
+
+ apply_units_log2 = get_bits(gb, 4);
+ aom->width = get_bits(gb, 12) << apply_units_log2;
+ aom->height = get_bits(gb, 12) << apply_units_log2;
+ luma_only = get_bits1(gb);
+ if (luma_only) {
+ aom->subx = aom->suby = 0;
+ } else {
+ aom->subx = get_bits1(gb);
+ aom->suby = get_bits1(gb);
+ }
+
+ aom->bit_depth = 0;
+ aom->color_primaries = AVCOL_PRI_UNSPECIFIED;
+ aom->color_trc = AVCOL_TRC_UNSPECIFIED;
+ aom->color_space = AVCOL_SPC_UNSPECIFIED;
+ aom->color_range = AVCOL_RANGE_UNSPECIFIED;
+
+ vsc_flag = get_bits1(gb); // video_signal_characteristics_flag
+ if (vsc_flag) {
+ int cicp_flag;
+ aom->bit_depth = get_bits(gb, 3) + 8;
+ cicp_flag = get_bits1(gb);
+ if (cicp_flag) {
+ aom->color_primaries = get_bits(gb, 8);
+ aom->color_trc = get_bits(gb, 8);
+ aom->color_space = get_bits(gb, 8);
+ aom->color_range = get_bits1(gb) ? AVCOL_RANGE_JPEG : AVCOL_RANGE_MPEG;
+ if (aom->color_primaries > AVCOL_PRI_NB ||
+ aom->color_primaries == AVCOL_PRI_RESERVED ||
+ aom->color_primaries == AVCOL_PRI_RESERVED0 ||
+ aom->color_trc > AVCOL_TRC_NB ||
+ aom->color_trc == AVCOL_TRC_RESERVED ||
+ aom->color_trc == AVCOL_TRC_RESERVED0 ||
+ aom->color_space > AVCOL_SPC_NB ||
+ aom->color_space == AVCOL_SPC_RESERVED)
+ goto error;
+ }
+ }
+
+ predict_scaling = get_bits1(gb);
+ if (predict_scaling && (!ref || ref == fgp))
+ goto error; // prediction must be from valid, different set
+
+ predict_y_scaling = predict_scaling ? get_bits1(gb) : 0;
+ if (predict_y_scaling) {
+ int y_scale, y_offset, bits_res;
+ y_scale = get_bits(gb, 9) - 256;
+ y_offset = get_bits(gb, 9) - 256;
+ bits_res = get_bits(gb, 3);
+ if (bits_res) {
+ int res[14], pred, granularity;
+ aom->num_y_points = ref->codec.aom.num_y_points;
+ for (i = 0; i < aom->num_y_points; i++)
+ res[i] = get_bits(gb, bits_res);
+ granularity = get_bits(gb, 3);
+ for (i = 0; i < aom->num_y_points; i++) {
+ pred = ref->codec.aom.y_points[i][1];
+ pred = ((pred * y_scale + 8) >> 4) + y_offset;
+ pred += (res[i] - (1 << (bits_res - 1))) * granularity;
+ aom->y_points[i][0] = ref->codec.aom.y_points[i][0];
+ aom->y_points[i][1] = av_clip_uint8(pred);
+ }
+ }
+ } else {
+ aom->num_y_points = get_bits(gb, 4);
+ if (aom->num_y_points > 14) {
+ goto error;
+ } else if (aom->num_y_points) {
+ int bits_inc, bits_scaling;
+ int y_value = 0;
+ bits_inc = get_bits(gb, 3) + 1;
+ bits_scaling = get_bits(gb, 2) + 5;
+ for (i = 0; i < aom->num_y_points; i++) {
+ y_value += get_bits(gb, bits_inc);
+ if (y_value > UINT8_MAX)
+ goto error;
+ aom->y_points[i][0] = y_value;
+ aom->y_points[i][1] = get_bits(gb, bits_scaling);
+ }
+ }
+ }
+
+ if (luma_only) {
+ aom->chroma_scaling_from_luma = 0;
+ aom->num_uv_points[0] = aom->num_uv_points[1] = 0;
+ } else {
+ aom->chroma_scaling_from_luma = get_bits1(gb);
+ if (aom->chroma_scaling_from_luma) {
+ aom->num_uv_points[0] = aom->num_uv_points[1] = 0;
+ } else {
+ for (uv = 0; uv < 2; uv++) {
+ predict_uv_scaling[uv] = predict_scaling ? get_bits1(gb) : 0;
+ if (predict_uv_scaling[uv]) {
+ int uv_scale, uv_offset, bits_res;
+ uv_scale = get_bits(gb, 9) - 256;
+ uv_offset = get_bits(gb, 9) - 256;
+ bits_res = get_bits(gb, 3);
+ aom->uv_mult[uv] = ref->codec.aom.uv_mult[uv];
+ aom->uv_mult_luma[uv] = ref->codec.aom.uv_mult_luma[uv];
+ aom->uv_offset[uv] = ref->codec.aom.uv_offset[uv];
+ if (bits_res) {
+ int res[10], pred, granularity;
+ aom->num_uv_points[uv] = ref->codec.aom.num_uv_points[uv];
+ for (i = 0; i < aom->num_uv_points[uv]; i++)
+ res[i] = get_bits(gb, bits_res);
+ granularity = get_bits(gb, 3);
+ for (i = 0; i < aom->num_uv_points[uv]; i++) {
+ pred = ref->codec.aom.uv_points[uv][i][1];
+ pred = ((pred * uv_scale + 8) >> 4) + uv_offset;
+ pred += (res[i] - (1 << (bits_res - 1))) * granularity;
+ aom->uv_points[uv][i][0] = ref->codec.aom.uv_points[uv][i][0];
+ aom->uv_points[uv][i][1] = av_clip_uint8(pred);
+ }
+ }
+ } else {
+ int bits_inc, bits_scaling, uv_offset;
+ int uv_value = 0;
+ aom->num_uv_points[uv] = get_bits(gb, 4);
+ if (aom->num_uv_points[uv] > 10)
+ goto error;
+ bits_inc = get_bits(gb, 3) + 1;
+ bits_scaling = get_bits(gb, 2) + 5;
+ uv_offset = get_bits(gb, 8);
+ for (i = 0; i < aom->num_uv_points[uv]; i++) {
+ uv_value += get_bits(gb, bits_inc);
+ if (uv_value > UINT8_MAX)
+ goto error;
+ aom->uv_points[uv][i][0] = uv_value;
+ aom->uv_points[uv][i][1] = get_bits(gb, bits_scaling) + uv_offset;
+ }
+ }
+ }
+ }
+ }
+
+ aom->scaling_shift = get_bits(gb, 2) + 8;
+ aom->ar_coeff_lag = get_bits(gb, 2);
+ num_y_coeffs = 2 * aom->ar_coeff_lag * (aom->ar_coeff_lag + 1);
+ if (aom->num_y_points) {
+ int ar_bits = get_bits(gb, 2) + 5;
+ for (i = 0; i < num_y_coeffs; i++)
+ aom->ar_coeffs_y[i] = get_bits(gb, ar_bits) - (1 << (ar_bits - 1));
+ }
+ for (uv = 0; uv < 2; uv++) {
+ if (aom->chroma_scaling_from_luma || aom->num_uv_points[uv]) {
+ int ar_bits = get_bits(gb, 2) + 5;
+ for (i = 0; i < num_y_coeffs + !!aom->num_y_points; i++)
+ aom->ar_coeffs_uv[uv][i] = get_bits(gb, ar_bits) - (1 << (ar_bits - 1));
+ }
+ }
+ aom->ar_coeff_shift = get_bits(gb, 2) + 6;
+ aom->grain_scale_shift = get_bits(gb, 2);
+ for (uv = 0; uv < 2; uv++) {
+ if (aom->num_uv_points[uv] && !predict_uv_scaling[uv]) {
+ aom->uv_mult[uv] = get_bits(gb, 8) - 128;
+ aom->uv_mult_luma[uv] = get_bits(gb, 8) - 128;
+ aom->uv_offset[uv] = get_bits(gb, 9) - 256;
+ }
+ }
+ aom->overlap_flag = get_bits1(gb);
+ aom->limit_output_range = get_bits1(gb);
+
+ // use first set as reference only if it was fully transmitted
+ if (n == 0)
+ ref = fgp;
+
+ payload_bits = get_bits_count(gb) - start_position;
+ if (payload_bits > payload_size * 8)
+ goto error;
+ skip_bits(gb, payload_size * 8 - payload_bits);
+ }
+ return 0;
+
+error:
+ memset(s, 0, sizeof(*s));
+ return AVERROR_INVALIDDATA;
+}
+
+int ff_aom_attach_film_grain_sets(const AVFilmGrainAFGS1Params *s, AVFrame *frame)
+{
+ AVFilmGrainParams *fgp;
+ if (!s->enable)
+ return 0;
+
+ for (int i = 0; i < FF_ARRAY_ELEMS(s->sets); i++) {
+ if (s->sets[i].type != AV_FILM_GRAIN_PARAMS_AV1)
+ continue;
+ fgp = av_film_grain_params_create_side_data(frame);
+ if (!fgp)
+ return AVERROR(ENOMEM);
+ memcpy(fgp, &s->sets[i], sizeof(*fgp));
+ }
+
+ return 0;
+}
+
// Taken from the AV1 spec. Range is [-2048, 2047], mean is 0 and stddev is 512
static const int16_t gaussian_sequence[2048] = {
56, 568, -180, 172, 124, -84, 172, -64, -900, 24, 820,
diff --git a/libavcodec/aom_film_grain.h b/libavcodec/aom_film_grain.h
index 5d772bd7d17..1f8c78f657a 100644
--- a/libavcodec/aom_film_grain.h
+++ b/libavcodec/aom_film_grain.h
@@ -30,9 +30,22 @@
#include "libavutil/film_grain_params.h"
+typedef struct AVFilmGrainAFGS1Params {
+ int enable;
+ AVFilmGrainParams sets[8];
+} AVFilmGrainAFGS1Params;
+
// Synthesizes film grain on top of `in` and stores the result to `out`. `out`
// must already have been allocated and set to the same size and format as `in`.
int ff_aom_apply_film_grain(AVFrame *out, const AVFrame *in,
const AVFilmGrainParams *params);
+// Parse AFGS1 parameter sets from an ITU-T T.35 payload. Returns 0 on success,
+// or a negative error code.
+int ff_aom_parse_film_grain_sets(AVFilmGrainAFGS1Params *s,
+ const uint8_t *payload, int payload_size);
+
+// Attach all valid film grain param sets to `frame`.
+int ff_aom_attach_film_grain_sets(const AVFilmGrainAFGS1Params *s, AVFrame *frame);
+
#endif /* AVCODEC_AOM_FILM_GRAIN_H */
--
2.44.0
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^ permalink raw reply [flat|nested] 15+ messages in thread
* [FFmpeg-devel] [PATCH v3 8/9] avcodec/h2645_sei: decode AFGS1 T.35 SEI
2024-03-15 11:58 [FFmpeg-devel] [PATCH v3 0/9] AFGS1 film grain support Niklas Haas
` (6 preceding siblings ...)
2024-03-15 11:59 ` [FFmpeg-devel] [PATCH v3 7/9] avcodec/aom_film_grain: implement AFGS1 parsing Niklas Haas
@ 2024-03-15 11:59 ` Niklas Haas
2024-03-15 11:59 ` [FFmpeg-devel] [PATCH v3 9/9] avcodec/hevcdec: apply AOM film grain synthesis Niklas Haas
8 siblings, 0 replies; 15+ messages in thread
From: Niklas Haas @ 2024-03-15 11:59 UTC (permalink / raw)
To: ffmpeg-devel; +Cc: Niklas Haas
From: Niklas Haas <git@haasn.dev>
I restricted this SEI to HEVC for now, until I see a H.264 sample.
---
libavcodec/Makefile | 2 +-
libavcodec/h2645_sei.c | 25 +++++++++++++++++++++++++
libavcodec/h2645_sei.h | 3 +++
3 files changed, 29 insertions(+), 1 deletion(-)
diff --git a/libavcodec/Makefile b/libavcodec/Makefile
index 708434ac76c..824845276ae 100644
--- a/libavcodec/Makefile
+++ b/libavcodec/Makefile
@@ -105,7 +105,7 @@ OBJS-$(CONFIG_H264_SEI) += h264_sei.o h2645_sei.o
OBJS-$(CONFIG_HEVCPARSE) += hevc_parse.o hevc_ps.o hevc_data.o \
h2645data.o h2645_parse.o h2645_vui.o
OBJS-$(CONFIG_HEVC_SEI) += hevc_sei.o h2645_sei.o \
- dynamic_hdr_vivid.o
+ dynamic_hdr_vivid.o aom_film_grain.o
OBJS-$(CONFIG_HPELDSP) += hpeldsp.o
OBJS-$(CONFIG_HUFFMAN) += huffman.o
OBJS-$(CONFIG_HUFFYUVDSP) += huffyuvdsp.o
diff --git a/libavcodec/h2645_sei.c b/libavcodec/h2645_sei.c
index e60606f43f9..2e79b9ea78b 100644
--- a/libavcodec/h2645_sei.c
+++ b/libavcodec/h2645_sei.c
@@ -209,6 +209,24 @@ static int decode_registered_user_data(H2645SEI *h, GetByteContext *gb,
}
break;
}
+ case 0x5890: { // aom_provider_code
+ const uint16_t aom_grain_provider_oriented_code = 0x0001;
+ uint16_t provider_oriented_code;
+
+ if (!IS_HEVC(codec_id))
+ goto unsupported_provider_code;
+
+ if (bytestream2_get_bytes_left(gb) < 2)
+ return AVERROR_INVALIDDATA;
+
+ provider_oriented_code = bytestream2_get_byteu(gb);
+ if (provider_oriented_code == aom_grain_provider_oriented_code) {
+ return ff_aom_parse_film_grain_sets(&h->aom_film_grain,
+ gb->buffer,
+ bytestream2_get_bytes_left(gb));
+ }
+ break;
+ }
unsupported_provider_code:
#endif
default:
@@ -692,6 +710,12 @@ int ff_h2645_sei_to_frame(AVFrame *frame, H2645SEI *sei,
avctx->properties |= FF_CODEC_PROPERTY_FILM_GRAIN;
}
+#if CONFIG_HEVC_SEI
+ ret = ff_aom_attach_film_grain_sets(&sei->aom_film_grain, frame);
+ if (ret < 0)
+ return ret;
+#endif
+
if (sei->ambient_viewing_environment.present) {
H2645SEIAmbientViewingEnvironment *env =
&sei->ambient_viewing_environment;
@@ -788,4 +812,5 @@ void ff_h2645_sei_reset(H2645SEI *s)
s->ambient_viewing_environment.present = 0;
s->mastering_display.present = 0;
s->content_light.present = 0;
+ s->aom_film_grain.enable = 0;
}
diff --git a/libavcodec/h2645_sei.h b/libavcodec/h2645_sei.h
index 0ebf48011af..b9a6c7587b1 100644
--- a/libavcodec/h2645_sei.h
+++ b/libavcodec/h2645_sei.h
@@ -23,7 +23,9 @@
#include "libavutil/buffer.h"
#include "libavutil/frame.h"
+#include "libavutil/film_grain_params.h"
+#include "aom_film_grain.h"
#include "avcodec.h"
#include "bytestream.h"
#include "codec_id.h"
@@ -132,6 +134,7 @@ typedef struct H2645SEI {
H2645SEIAmbientViewingEnvironment ambient_viewing_environment;
H2645SEIMasteringDisplay mastering_display;
H2645SEIContentLight content_light;
+ AVFilmGrainAFGS1Params aom_film_grain;
} H2645SEI;
enum {
--
2.44.0
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^ permalink raw reply [flat|nested] 15+ messages in thread
* [FFmpeg-devel] [PATCH v3 9/9] avcodec/hevcdec: apply AOM film grain synthesis
2024-03-15 11:58 [FFmpeg-devel] [PATCH v3 0/9] AFGS1 film grain support Niklas Haas
` (7 preceding siblings ...)
2024-03-15 11:59 ` [FFmpeg-devel] [PATCH v3 8/9] avcodec/h2645_sei: decode AFGS1 T.35 SEI Niklas Haas
@ 2024-03-15 11:59 ` Niklas Haas
8 siblings, 0 replies; 15+ messages in thread
From: Niklas Haas @ 2024-03-15 11:59 UTC (permalink / raw)
To: ffmpeg-devel; +Cc: Niklas Haas
From: Niklas Haas <git@haasn.dev>
Following the usual logic for H.274 film grain.
---
libavcodec/Makefile | 2 +-
libavcodec/hevcdec.c | 29 ++++++++++++++++++++++-------
2 files changed, 23 insertions(+), 8 deletions(-)
diff --git a/libavcodec/Makefile b/libavcodec/Makefile
index 824845276ae..7ef2e03ca6a 100644
--- a/libavcodec/Makefile
+++ b/libavcodec/Makefile
@@ -432,7 +432,7 @@ OBJS-$(CONFIG_HDR_ENCODER) += hdrenc.o
OBJS-$(CONFIG_HEVC_DECODER) += hevcdec.o hevc_mvs.o \
hevc_cabac.o hevc_refs.o hevcpred.o \
hevcdsp.o hevc_filter.o hevc_data.o \
- h274.o
+ h274.o aom_film_grain.o
OBJS-$(CONFIG_HEVC_AMF_ENCODER) += amfenc_hevc.o
OBJS-$(CONFIG_HEVC_CUVID_DECODER) += cuviddec.o
OBJS-$(CONFIG_HEVC_MEDIACODEC_DECODER) += mediacodecdec.o
diff --git a/libavcodec/hevcdec.c b/libavcodec/hevcdec.c
index 76aa6b45882..575836e340c 100644
--- a/libavcodec/hevcdec.c
+++ b/libavcodec/hevcdec.c
@@ -35,6 +35,7 @@
#include "libavutil/pixdesc.h"
#include "libavutil/timecode.h"
+#include "aom_film_grain.h"
#include "bswapdsp.h"
#include "cabac_functions.h"
#include "codec_internal.h"
@@ -388,7 +389,8 @@ static int export_stream_params_from_sei(HEVCContext *s)
avctx->color_trc = s->sei.common.alternative_transfer.preferred_transfer_characteristics;
}
- if (s->sei.common.film_grain_characteristics.present)
+ if (s->sei.common.film_grain_characteristics.present ||
+ s->sei.common.aom_film_grain.enable)
avctx->properties |= FF_CODEC_PROPERTY_FILM_GRAIN;
return 0;
@@ -2885,11 +2887,13 @@ static int hevc_frame_start(HEVCContext *s)
else
s->ref->frame->flags &= ~AV_FRAME_FLAG_KEY;
- s->ref->needs_fg = s->sei.common.film_grain_characteristics.present &&
+ s->ref->needs_fg = (s->sei.common.film_grain_characteristics.present ||
+ s->sei.common.aom_film_grain.enable) &&
!(s->avctx->export_side_data & AV_CODEC_EXPORT_DATA_FILM_GRAIN) &&
!s->avctx->hwaccel;
if (s->ref->needs_fg &&
+ s->sei.common.film_grain_characteristics.present &&
!ff_h274_film_grain_params_supported(s->sei.common.film_grain_characteristics.model_id,
s->ref->frame->format)) {
av_log_once(s->avctx, AV_LOG_WARNING, AV_LOG_DEBUG, &s->film_grain_warning_shown,
@@ -2934,14 +2938,24 @@ fail:
static int hevc_frame_end(HEVCContext *s)
{
HEVCFrame *out = s->ref;
- const AVFrameSideData *sd;
+ const AVFilmGrainParams *fgp;
av_unused int ret;
if (out->needs_fg) {
- sd = av_frame_get_side_data(out->frame, AV_FRAME_DATA_FILM_GRAIN_PARAMS);
- av_assert0(out->frame_grain->buf[0] && sd);
- ret = ff_h274_apply_film_grain(out->frame_grain, out->frame, &s->h274db,
- (AVFilmGrainParams *) sd->data);
+ av_assert0(out->frame_grain->buf[0]);
+ fgp = av_film_grain_params_select(out->frame);
+ switch (fgp->type) {
+ case AV_FILM_GRAIN_PARAMS_NONE:
+ av_assert0(0);
+ return AVERROR_BUG;
+ case AV_FILM_GRAIN_PARAMS_H274:
+ ret = ff_h274_apply_film_grain(out->frame_grain, out->frame,
+ &s->h274db, fgp);
+ break;
+ case AV_FILM_GRAIN_PARAMS_AV1:
+ ret = ff_aom_apply_film_grain(out->frame_grain, out->frame, fgp);
+ break;
+ }
av_assert1(ret >= 0);
}
@@ -3596,6 +3610,7 @@ static int hevc_update_thread_context(AVCodecContext *dst,
s->sei.common.alternative_transfer = s0->sei.common.alternative_transfer;
s->sei.common.mastering_display = s0->sei.common.mastering_display;
s->sei.common.content_light = s0->sei.common.content_light;
+ s->sei.common.aom_film_grain = s0->sei.common.aom_film_grain;
ret = export_stream_params_from_sei(s);
if (ret < 0)
--
2.44.0
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^ permalink raw reply [flat|nested] 15+ messages in thread
* Re: [FFmpeg-devel] [PATCH v3 1/9] avutil/film_grain_params: add extra AFGS1 metadata
2024-03-15 11:58 ` [FFmpeg-devel] [PATCH v3 1/9] avutil/film_grain_params: add extra AFGS1 metadata Niklas Haas
@ 2024-03-15 12:18 ` James Almer
0 siblings, 0 replies; 15+ messages in thread
From: James Almer @ 2024-03-15 12:18 UTC (permalink / raw)
To: ffmpeg-devel
On 3/15/2024 8:58 AM, Niklas Haas wrote:
> From: Niklas Haas <git@haasn.dev>
>
> In hindsight, it may have been better for this to be part of the common
> film grain struct, to avoid duplication of these fields between it and
> H274 (and to allow initialization by av_film_grain_params_alloc), but
> I can't add new fields before the union without breaking ABI, and having
> the union not be the last parameter will make future extensibility
> similarly difficult.
You could add them now at the end, and in the next major bump we simply
reorder the fields so the union is last again.
> ---
> doc/APIchanges | 4 ++++
> libavutil/film_grain_params.h | 15 +++++++++++++++
> libavutil/version.h | 2 +-
> 3 files changed, 20 insertions(+), 1 deletion(-)
>
> diff --git a/doc/APIchanges b/doc/APIchanges
> index cf58c8c5f0a..5a192b600af 100644
> --- a/doc/APIchanges
> +++ b/doc/APIchanges
> @@ -2,6 +2,10 @@ The last version increases of all libraries were on 2024-03-07
>
> API changes, most recent first:
>
> +2024-03-08 - xxxxxxxxxx - lavu 59.2.100 - film_grain_params.h
> + Add AVFilmGrainAOMParams.color_range, color_primaries, color_trc,
> + color_space, width, height, subx, suby and bit_depth.
> +
> 2024-03-08 - xxxxxxxxxx - lavc 61.1.100 - avcodec.h
> Add AVCodecContext.[nb_]side_data_prefer_packet.
>
> diff --git a/libavutil/film_grain_params.h b/libavutil/film_grain_params.h
> index f3bd0a4a6a3..17fefeb06c3 100644
> --- a/libavutil/film_grain_params.h
> +++ b/libavutil/film_grain_params.h
> @@ -120,6 +120,21 @@ typedef struct AVFilmGrainAOMParams {
> * Signals to clip to limited color levels after film grain application.
> */
> int limit_output_range;
> +
> + /**
> + * Video characteristics metadata, only for AFGS1 streams.
> + */
> + enum AVColorRange color_range;
> + enum AVColorPrimaries color_primaries;
> + enum AVColorTransferCharacteristic color_trc;
> + enum AVColorSpace color_space;
> +
> + /**
> + * Intended display resolution and format, only for AFGS1 streams.
> + */
> + int width, height;
> + int subx, suby;
> + int bit_depth; /* or 0 if unknown */
> } AVFilmGrainAOMParams;
>
> /**
> diff --git a/libavutil/version.h b/libavutil/version.h
> index 09f8cdc2926..57cad02ec0a 100644
> --- a/libavutil/version.h
> +++ b/libavutil/version.h
> @@ -79,7 +79,7 @@
> */
>
> #define LIBAVUTIL_VERSION_MAJOR 59
> -#define LIBAVUTIL_VERSION_MINOR 1
> +#define LIBAVUTIL_VERSION_MINOR 2
> #define LIBAVUTIL_VERSION_MICRO 100
>
> #define LIBAVUTIL_VERSION_INT AV_VERSION_INT(LIBAVUTIL_VERSION_MAJOR, \
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^ permalink raw reply [flat|nested] 15+ messages in thread
* Re: [FFmpeg-devel] [PATCH v3 2/9] avcodec/av1dec: initialize AFGS1 VSC metadata
2024-03-15 11:58 ` [FFmpeg-devel] [PATCH v3 2/9] avcodec/av1dec: initialize AFGS1 VSC metadata Niklas Haas
@ 2024-03-15 12:20 ` James Almer
2024-03-15 12:23 ` Niklas Haas
0 siblings, 1 reply; 15+ messages in thread
From: James Almer @ 2024-03-15 12:20 UTC (permalink / raw)
To: ffmpeg-devel
On 3/15/2024 8:58 AM, Niklas Haas wrote:
> From: Niklas Haas <git@haasn.dev>
>
> Unused by AV1, but should still be set properly.
The doxy for av_film_grain_params_alloc() says "Allocate an
AVFilmGrainParams structure and set its fields to default values", so
this should be done there.
> ---
> libavcodec/av1dec.c | 4 ++++
> 1 file changed, 4 insertions(+)
>
> diff --git a/libavcodec/av1dec.c b/libavcodec/av1dec.c
> index e6346b51dbe..8a5796c757f 100644
> --- a/libavcodec/av1dec.c
> +++ b/libavcodec/av1dec.c
> @@ -1124,6 +1124,10 @@ static int export_film_grain(AVCodecContext *avctx, AVFrame *frame)
> aom->uv_mult_luma[1] = film_grain->cr_luma_mult;
> aom->uv_offset[0] = film_grain->cb_offset;
> aom->uv_offset[1] = film_grain->cr_offset;
> + aom->color_range = AVCOL_RANGE_UNSPECIFIED;
> + aom->color_primaries = AVCOL_PRI_UNSPECIFIED;
> + aom->color_trc = AVCOL_TRC_UNSPECIFIED;
> + aom->color_space = AVCOL_SPC_UNSPECIFIED;
>
> return 0;
> }
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^ permalink raw reply [flat|nested] 15+ messages in thread
* Re: [FFmpeg-devel] [PATCH v3 5/9] avutil/film_grain_params: add av_film_grain_params_select()
2024-03-15 11:58 ` [FFmpeg-devel] [PATCH v3 5/9] avutil/film_grain_params: add av_film_grain_params_select() Niklas Haas
@ 2024-03-15 12:22 ` Niklas Haas
0 siblings, 0 replies; 15+ messages in thread
From: Niklas Haas @ 2024-03-15 12:22 UTC (permalink / raw)
To: ffmpeg-devel; +Cc: Niklas Haas
On Fri, 15 Mar 2024 12:58:58 +0100 Niklas Haas <ffmpeg@haasn.xyz> wrote:
> From: Niklas Haas <git@haasn.dev>
>
> Common utility function that can be used by all codecs to select the
> right (any valid) film grain parameter set. In particular, this is
> useful for AFGS1, which has support for multiple parameters.
>
> However, it also performs parameter validation for H274.
> ---
> doc/APIchanges | 3 ++
> libavutil/film_grain_params.c | 57 +++++++++++++++++++++++++++++++++++
> libavutil/film_grain_params.h | 7 +++++
> libavutil/version.h | 2 +-
> 4 files changed, 68 insertions(+), 1 deletion(-)
>
> diff --git a/doc/APIchanges b/doc/APIchanges
> index 5a192b600af..34245c8b708 100644
> --- a/doc/APIchanges
> +++ b/doc/APIchanges
> @@ -2,6 +2,9 @@ The last version increases of all libraries were on 2024-03-07
>
> API changes, most recent first:
>
> +2024-03-08 - xxxxxxxxxx - lavu 59.3.100 - film_grain_params.h
> + Add av_film_grain_params_select().
> +
> 2024-03-08 - xxxxxxxxxx - lavu 59.2.100 - film_grain_params.h
> Add AVFilmGrainAOMParams.color_range, color_primaries, color_trc,
> color_space, width, height, subx, suby and bit_depth.
> diff --git a/libavutil/film_grain_params.c b/libavutil/film_grain_params.c
> index 930d23c7fe9..8c80adc66a7 100644
> --- a/libavutil/film_grain_params.c
> +++ b/libavutil/film_grain_params.c
> @@ -17,6 +17,7 @@
> */
>
> #include "film_grain_params.h"
> +#include "pixdesc.h"
>
> AVFilmGrainParams *av_film_grain_params_alloc(size_t *size)
> {
> @@ -40,3 +41,59 @@ AVFilmGrainParams *av_film_grain_params_create_side_data(AVFrame *frame)
>
> return (AVFilmGrainParams *)side_data->data;
> }
> +
> +const AVFilmGrainParams *av_film_grain_params_select(const AVFrame *frame)
> +{
> + const AVFilmGrainParams *fgp, *best = NULL;
> + const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(frame->format);
> + const AVFilmGrainAOMParams *aom;
> + const AVFilmGrainH274Params *h274;
> + if (!desc)
> + return NULL;
> +
> +#define CHECK(a, b, unspec) \
> + do { \
> + if ((a) != (unspec) && (b) != (unspec) && (a) != (b)) \
> + continue; \
> + } while (0)
> +
> + for (int i = 0; i < frame->nb_side_data; i++) {
> + if (frame->side_data[i]->type != AV_FRAME_DATA_FILM_GRAIN_PARAMS)
> + continue;
> + fgp = (const AVFilmGrainParams*)frame->side_data[i]->data;
> + switch (fgp->type) {
> + case AV_FILM_GRAIN_PARAMS_NONE:
> + continue;
> + case AV_FILM_GRAIN_PARAMS_AV1:
> + aom = &fgp->codec.aom;
> + if (aom->subx != desc->log2_chroma_w || aom->suby != desc->log2_chroma_h)
> + continue;
> + CHECK(aom->bit_depth, desc->comp[0].depth, 0);
> + CHECK(aom->width, frame->width, 0);
> + CHECK(aom->height, frame->height, 0);
This condition is wrong, it should allow all aom->width <= frame->width;
not just an exact match.
> + CHECK(aom->color_range, frame->color_range, AVCOL_RANGE_UNSPECIFIED);
> + CHECK(aom->color_primaries, frame->color_primaries, AVCOL_PRI_UNSPECIFIED);
> + CHECK(aom->color_trc, frame->color_trc, AVCOL_TRC_UNSPECIFIED);
> + CHECK(aom->color_space, frame->colorspace, AVCOL_SPC_UNSPECIFIED);
> +
> + if (!best ||
> + best->codec.aom.width < aom->width ||
> + best->codec.aom.height < aom->height)
> + best = fgp;
> + break;
> + case AV_FILM_GRAIN_PARAMS_H274:
> + h274 = &fgp->codec.h274;
> + /* There are no YUV formats with different bit depth per component,
> + * so just check both against the first component for simplicity */
> + CHECK(h274->bit_depth_luma, desc->comp[0].depth, 0);
> + CHECK(h274->bit_depth_chroma, desc->comp[0].depth, 0);
> + CHECK(h274->color_range, frame->color_range, AVCOL_RANGE_UNSPECIFIED);
> + CHECK(h274->color_primaries, frame->color_primaries, AVCOL_PRI_UNSPECIFIED);
> + CHECK(h274->color_trc, frame->color_trc, AVCOL_TRC_UNSPECIFIED);
> + CHECK(h274->color_space, frame->colorspace, AVCOL_SPC_UNSPECIFIED);
> + return fgp; /* H274 can't have multiple resolutions */
> + }
> + }
> +
> + return best;
> +}
> diff --git a/libavutil/film_grain_params.h b/libavutil/film_grain_params.h
> index 17fefeb06c3..75c020ceb92 100644
> --- a/libavutil/film_grain_params.h
> +++ b/libavutil/film_grain_params.h
> @@ -272,4 +272,11 @@ AVFilmGrainParams *av_film_grain_params_alloc(size_t *size);
> */
> AVFilmGrainParams *av_film_grain_params_create_side_data(AVFrame *frame);
>
> +/**
> + * Select the most appropriate film grain parameters set for the frame,
> + * taking into account the frame's format, resolution and video signal
> + * characteristics.
> + */
> +const AVFilmGrainParams *av_film_grain_params_select(const AVFrame *frame);
> +
> #endif /* AVUTIL_FILM_GRAIN_PARAMS_H */
> diff --git a/libavutil/version.h b/libavutil/version.h
> index 57cad02ec0a..5027b025be4 100644
> --- a/libavutil/version.h
> +++ b/libavutil/version.h
> @@ -79,7 +79,7 @@
> */
>
> #define LIBAVUTIL_VERSION_MAJOR 59
> -#define LIBAVUTIL_VERSION_MINOR 2
> +#define LIBAVUTIL_VERSION_MINOR 3
> #define LIBAVUTIL_VERSION_MICRO 100
>
> #define LIBAVUTIL_VERSION_INT AV_VERSION_INT(LIBAVUTIL_VERSION_MAJOR, \
> --
> 2.44.0
>
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^ permalink raw reply [flat|nested] 15+ messages in thread
* Re: [FFmpeg-devel] [PATCH v3 2/9] avcodec/av1dec: initialize AFGS1 VSC metadata
2024-03-15 12:20 ` James Almer
@ 2024-03-15 12:23 ` Niklas Haas
2024-03-15 12:25 ` James Almer
0 siblings, 1 reply; 15+ messages in thread
From: Niklas Haas @ 2024-03-15 12:23 UTC (permalink / raw)
To: ffmpeg-devel
On Fri, 15 Mar 2024 09:20:04 -0300 James Almer <jamrial@gmail.com> wrote:
> On 3/15/2024 8:58 AM, Niklas Haas wrote:
> > From: Niklas Haas <git@haasn.dev>
> >
> > Unused by AV1, but should still be set properly.
>
> The doxy for av_film_grain_params_alloc() says "Allocate an
> AVFilmGrainParams structure and set its fields to default values", so
> this should be done there.
This function doesn't know whether the film grain is of type AV1 or
H274, and so cannot set the correct codec-specific parameter defaults.
Unless, of course, we add these fields to the common struct, as
discussed above. (Or if we add the type to the function signature)
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^ permalink raw reply [flat|nested] 15+ messages in thread
* Re: [FFmpeg-devel] [PATCH v3 2/9] avcodec/av1dec: initialize AFGS1 VSC metadata
2024-03-15 12:23 ` Niklas Haas
@ 2024-03-15 12:25 ` James Almer
0 siblings, 0 replies; 15+ messages in thread
From: James Almer @ 2024-03-15 12:25 UTC (permalink / raw)
To: ffmpeg-devel
On 3/15/2024 9:23 AM, Niklas Haas wrote:
> On Fri, 15 Mar 2024 09:20:04 -0300 James Almer <jamrial@gmail.com> wrote:
>> On 3/15/2024 8:58 AM, Niklas Haas wrote:
>>> From: Niklas Haas <git@haasn.dev>
>>>
>>> Unused by AV1, but should still be set properly.
>>
>> The doxy for av_film_grain_params_alloc() says "Allocate an
>> AVFilmGrainParams structure and set its fields to default values", so
>> this should be done there.
>
> This function doesn't know whether the film grain is of type AV1 or
> H274, and so cannot set the correct codec-specific parameter defaults.
>
> Unless, of course, we add these fields to the common struct, as
> discussed above. (Or if we add the type to the function signature)
We can't change the function signature, but we can add the fields to the
common struct.
Just leave a comment about reordering the fields in the next bump (Which
hopefully will not be forgotten).
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^ permalink raw reply [flat|nested] 15+ messages in thread
end of thread, other threads:[~2024-03-15 12:25 UTC | newest]
Thread overview: 15+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2024-03-15 11:58 [FFmpeg-devel] [PATCH v3 0/9] AFGS1 film grain support Niklas Haas
2024-03-15 11:58 ` [FFmpeg-devel] [PATCH v3 1/9] avutil/film_grain_params: add extra AFGS1 metadata Niklas Haas
2024-03-15 12:18 ` James Almer
2024-03-15 11:58 ` [FFmpeg-devel] [PATCH v3 2/9] avcodec/av1dec: initialize AFGS1 VSC metadata Niklas Haas
2024-03-15 12:20 ` James Almer
2024-03-15 12:23 ` Niklas Haas
2024-03-15 12:25 ` James Almer
2024-03-15 11:58 ` [FFmpeg-devel] [PATCH v3 3/9] avcodec/libdav1d: " Niklas Haas
2024-03-15 11:58 ` [FFmpeg-devel] [PATCH v3 4/9] avutil/frame: clarify AV_FRAME_DATA_FILM_GRAIN_PARAMS usage Niklas Haas
2024-03-15 11:58 ` [FFmpeg-devel] [PATCH v3 5/9] avutil/film_grain_params: add av_film_grain_params_select() Niklas Haas
2024-03-15 12:22 ` Niklas Haas
2024-03-15 11:58 ` [FFmpeg-devel] [PATCH v3 6/9] avcodec/aom_film_grain: add AOM film grain synthesis Niklas Haas
2024-03-15 11:59 ` [FFmpeg-devel] [PATCH v3 7/9] avcodec/aom_film_grain: implement AFGS1 parsing Niklas Haas
2024-03-15 11:59 ` [FFmpeg-devel] [PATCH v3 8/9] avcodec/h2645_sei: decode AFGS1 T.35 SEI Niklas Haas
2024-03-15 11:59 ` [FFmpeg-devel] [PATCH v3 9/9] avcodec/hevcdec: apply AOM film grain synthesis Niklas Haas
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