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1
.gitignore vendored Normal file
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@ -0,0 +1 @@
.osc

58
0001-libavcodec-arm-mlpdsp_armv5te-fix-label-format-to-wo.patch Normal file
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@ -0,0 +1,58 @@
From 654bd47716c4f36719fb0f3f7fd8386d5ed0b916 Mon Sep 17 00:00:00 2001
From: Ross Burton <ross.burton@arm.com>
Date: Fri, 9 Aug 2024 11:32:00 +0100
Subject: [PATCH] libavcodec/arm/mlpdsp_armv5te: fix label format to work with
binutils 2.43
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
binutils 2.43 has stricter validation for labels[1] and results in errors
when building ffmpeg for armv5:
src/libavcodec/arm/mlpdsp_armv5te.S:232: Error: junk at end of line, first unrecognized character is `0'
Remove the leading zero in the "01" label to resolve this error.
[1] https://sourceware.org/git/?p=binutils-gdb.git;a=commit;h=226749d5a6ff0d5c607d6428d6c81e1e7e7a994b
Signed-off-by: Ross Burton <ross.burton@arm.com>
Signed-off-by: Martin Storsjö <martin@martin.st>
---
libavcodec/arm/mlpdsp_armv5te.S | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/libavcodec/arm/mlpdsp_armv5te.S b/libavcodec/arm/mlpdsp_armv5te.S
index 4f9aa485fd..d31568611c 100644
--- a/libavcodec/arm/mlpdsp_armv5te.S
+++ b/libavcodec/arm/mlpdsp_armv5te.S
@@ -229,7 +229,7 @@ A .endif
.endif
// Begin loop
-01:
+1:
.if TOTAL_TAPS == 0
// Things simplify a lot in this case
// In fact this could be pipelined further if it's worth it...
@@ -241,7 +241,7 @@ A .endif
str ST0, [PST, #-4]!
str ST0, [PST, #4 * (MAX_BLOCKSIZE + MAX_FIR_ORDER)]
str ST0, [PSAMP], #4 * MAX_CHANNELS
- bne 01b
+ bne 1b
.else
.if \fir_taps & 1
.set LOAD_REG, 1
@@ -333,7 +333,7 @@ T orr AC0, AC0, AC1
str ST3, [PST, #-4]!
str ST2, [PST, #4 * (MAX_BLOCKSIZE + MAX_FIR_ORDER)]
str ST3, [PSAMP], #4 * MAX_CHANNELS
- bne 01b
+ bne 1b
.endif
b 99f
--
2.46.0

4
_scmsync.obsinfo Normal file
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mtime: 1725228433
commit: 943a1c7f2afbdabd32765d443b847eea8f2612bd31918795e3f463461109d359
url: https://src.opensuse.org/jengelh/ffmpeg-6
revision: master

970
ffmpeg-6-CVE-2024-32228-shim-1535d338.patch Normal file
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@ -0,0 +1,970 @@
From 1535d338186f5e40383270b4a85fb1d4e213d3db Mon Sep 17 00:00:00 2001
Author: Niklas Haas <git@haasn.dev>
Date: Wed, 4 Oct 2023 13:43:51 +0200
Subject: [PATCH] avcodec/aom_film_grain: add AOM film grain synthesis
References: CVE-2024-32228
References: bsc#1227277
Upstream: Backport from upstream
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.
diff --git a/libavcodec/aom_film_grain.c b/libavcodec/aom_film_grain.c
new file mode 100644
index 0000000000..ffcd71b584
--- /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 = &params->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] = {
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+ 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 0000000000..5d772bd7d1
--- /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 0000000000..5f9f29f1fa
--- /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 = &params->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 = &params->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 = &params->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 = &params->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 = &params->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 = &params->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;
+}
--
2.41.0

319
ffmpeg-6-CVE-2024-32228-shim-f50382cb.patch Normal file
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@ -0,0 +1,319 @@
From f50382cba60d106440f1ad83396ff7bed586a5ac Mon Sep 17 00:00:00 2001
Author: Niklas Haas <git@haasn.dev>
Date: Mon, 26 Feb 2024 14:12:53 +0100
Subject: [PATCH] avcodec/aom_film_grain: implement AFGS1 parsing
References: CVE-2024-32228
References: bsc#1227277
Upstream: Backport from upstream
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.
diff --git a/libavcodec/aom_film_grain.c b/libavcodec/aom_film_grain.c
index ffcd71b584..e302567ba5 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 +119,243 @@ 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);
+ fgp->width = get_bits(gb, 12) << apply_units_log2;
+ fgp->height = get_bits(gb, 12) << apply_units_log2;
+ luma_only = get_bits1(gb);
+ if (luma_only) {
+ fgp->subsampling_x = fgp->subsampling_y = 0;
+ } else {
+ fgp->subsampling_x = get_bits1(gb);
+ fgp->subsampling_y = get_bits1(gb);
+ }
+
+ fgp->bit_depth_luma = fgp->bit_depth_chroma = 0;
+ fgp->color_primaries = AVCOL_PRI_UNSPECIFIED;
+ fgp->color_trc = AVCOL_TRC_UNSPECIFIED;
+ fgp->color_space = AVCOL_SPC_UNSPECIFIED;
+ fgp->color_range = AVCOL_RANGE_UNSPECIFIED;
+
+ vsc_flag = get_bits1(gb); // video_signal_characteristics_flag
+ if (vsc_flag) {
+ int cicp_flag;
+ fgp->bit_depth_luma = get_bits(gb, 3) + 8;
+ if (!luma_only)
+ fgp->bit_depth_chroma = fgp->bit_depth_luma;
+ cicp_flag = get_bits1(gb);
+ if (cicp_flag) {
+ fgp->color_primaries = get_bits(gb, 8);
+ fgp->color_trc = get_bits(gb, 8);
+ fgp->color_space = get_bits(gb, 8);
+ fgp->color_range = get_bits1(gb) ? AVCOL_RANGE_JPEG : AVCOL_RANGE_MPEG;
+ if (fgp->color_primaries > AVCOL_PRI_NB ||
+ fgp->color_primaries == AVCOL_PRI_RESERVED ||
+ fgp->color_primaries == AVCOL_PRI_RESERVED0 ||
+ fgp->color_trc > AVCOL_TRC_NB ||
+ fgp->color_trc == AVCOL_TRC_RESERVED ||
+ fgp->color_trc == AVCOL_TRC_RESERVED0 ||
+ fgp->color_space > AVCOL_SPC_NB ||
+ fgp->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 5d772bd7d1..1f8c78f657 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 */
--
2.41.0

25
ffmpeg-6-CVE-2024-32230.patch Normal file
View File

@ -0,0 +1,25 @@
From 96449cfeaeb95fcfd7a2b8d9ccf7719e97471ed1
Author: Michael Niedermayer <michael@niedermayer.cc>
Date: Mon Apr 8 18:38:42 2024 +0200
Subject: avcodec/mpegvideo_enc: Fix 1 line and one column images
References: CVE-2024-32230
References: bsc#1227296
Upstream: Backport from upstream
Fixes: Ticket10952
Fixes: poc21ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
--- ffmpeg-6.1.1/libavcodec/mpegvideo_enc.c 2023-12-31 08:07:26.000000000 +0800
+++ ffmpeg-6.1.1_new/libavcodec/mpegvideo_enc.c 2024-07-05 18:08:49.827035281 +0800
@@ -1198,8 +1198,8 @@
int dst_stride = i ? s->uvlinesize : s->linesize;
int h_shift = i ? s->chroma_x_shift : 0;
int v_shift = i ? s->chroma_y_shift : 0;
- int w = s->width >> h_shift;
- int h = s->height >> v_shift;
+ int w = AV_CEIL_RSHIFT(s->width , h_shift);
+ int h = AV_CEIL_RSHIFT(s->height, v_shift);
const uint8_t *src = pic_arg->data[i];
uint8_t *dst = pic->f->data[i];
int vpad = 16;

65
ffmpeg-6.changes
View File

@ -1,3 +1,68 @@
-------------------------------------------------------------------
Sun Sep 1 18:04:27 UTC 2024 - Jan Engelhardt <jengelh@inai.de>
- Add 0001-libavcodec-arm-mlpdsp_armv5te-fix-label-format-to-wo.patch
[boo#1229338]
-------------------------------------------------------------------
Wed Aug 14 14:38:37 UTC 2024 - Manfred Hollstein <manfred.h@gmx.net>
- Remove ffmpeg-6-CVE-2024-32228-shim-5d7f234e.patch and
ffmpeg-6-CVE-2024-32228.patch to make the bot happy.
- Renumber patches.
-------------------------------------------------------------------
Tue Aug 13 18:59:14 UTC 2024 - Manfred Hollstein <manfred.h@gmx.net>
- Disable ffmpeg-6-CVE-2024-32228-shim-5d7f234e.patch and
ffmpeg-6-CVE-2024-32228.patch as they brake compilation with
BUILD_ORIG enabled, i.e. Packman.
-------------------------------------------------------------------
Fri Jul 26 14:28:59 UTC 2024 - Filip Kastl <filip.kastl@suse.com>
- Add ffmpeg-c99.patch so that the package conforms to the C99
standard and builds on i586 with GCC 14.
-------------------------------------------------------------------
Tue Jul 2 12:26:28 UTC 2024 - Cliff Zhao <qzhao@suse.com>
- Add ffmpeg-6-CVE-2024-32230.patch:
Backporting 96449cfe from upstream, Fix 1 line and one column images.
(CVE-2024-32230 bsc#1227296)
-------------------------------------------------------------------
Tue Jul 2 11:57:01 UTC 2024 - Cliff Zhao <qzhao@suse.com>
- Add ffmpeg-6-CVE-2024-32228.patch:
Backporting 45964876 from upstream, Fix segfault on invalid film
grain metadata.
(CVE-2024-32228, bsc#1227277)
-------------------------------------------------------------------
Tue Jul 2 11:56:01 UTC 2024 - Cliff Zhao <qzhao@suse.com>
- Add ffmpeg-6-CVE-2024-32228-shim-5d7f234e.patch:
Backporting 5d7f234e from upstream, document that there can be multiple
complex filtergraphs to prepare dependence code for CVE-2024-32228.
(CVE-2024-32228, bsc#1227277)
-------------------------------------------------------------------
Tue Jul 2 11:55:01 UTC 2024 - Cliff Zhao <qzhao@suse.com>
- Add ffmpeg-6-CVE-2024-32228-shim-f50382cb.patch:
Backporting f50382cb from upstream, implement AFGS1 parsing.
to prepare dependence code for CVE-2024-32228.
(CVE-2024-32228, bsc#1227277)
-------------------------------------------------------------------
Tue Jul 2 11:54:01 UTC 2024 - Cliff Zhao <qzhao@suse.com>
- Add ffmpeg-6-CVE-2024-32228-shim-1535d338.patch:
Backporting 1535d338 from upstream, add AOM film grain synthesis,
to prepare dependence code for CVE-2024-32228.
(CVE-2024-32228, bsc#1227277)
-------------------------------------------------------------------
Thu Apr 23 14:05:28 UTC 2024 - Cliff Zhao <qzhao@suse.com>

16
ffmpeg-6.spec
View File

@ -17,9 +17,6 @@
%define flavor @BUILD_FLAVOR@%nil
#
# preamble is present twice, watch out
#
%if "%flavor" != "ffmpeg-6-mini"
# Create proper conflicts to make sure we require all from one version
@ -118,10 +115,18 @@ Patch10: 0001-avfilter-af_dialoguenhance-simplify-channels-copy.patch
Patch11: 0001-avfilter-af_dialoguenhance-do-output-scaling-once.patch
Patch12: 0001-avutil-hwcontext-Don-t-assume-frames_uninit-is-reent.patch
Patch13: 0001-avfilter-vf_codecview-fix-heap-buffer-overflow.patch
Patch14: 0001-libavcodec-arm-mlpdsp_armv5te-fix-label-format-to-wo.patch
Patch90: ffmpeg-chromium.patch
Patch91: ffmpeg-dlopen-openh264.patch
Patch92: ffmpeg-CVE-2023-50007.patch
Patch93: ffmpeg-CVE-2023-50008.patch
Patch94: ffmpeg-6-CVE-2024-32228-shim-1535d338.patch
Patch95: ffmpeg-6-CVE-2024-32228-shim-f50382cb.patch
Patch96: ffmpeg-6-CVE-2024-32230.patch
Patch97: ffmpeg-c99.patch
#
# preamble is present twice, watch out
#
BuildRequires: ladspa-devel
BuildRequires: libgsm-devel
BuildRequires: libmp3lame-devel >= 3.98.3
@ -840,10 +845,15 @@ Patch10: 0001-avfilter-af_dialoguenhance-simplify-channels-copy.patch
Patch11: 0001-avfilter-af_dialoguenhance-do-output-scaling-once.patch
Patch12: 0001-avutil-hwcontext-Don-t-assume-frames_uninit-is-reent.patch
Patch13: 0001-avfilter-vf_codecview-fix-heap-buffer-overflow.patch
Patch14: 0001-libavcodec-arm-mlpdsp_armv5te-fix-label-format-to-wo.patch
Patch90: ffmpeg-chromium.patch
Patch91: ffmpeg-dlopen-openh264.patch
Patch92: ffmpeg-CVE-2023-50007.patch
Patch93: ffmpeg-CVE-2023-50008.patch
Patch94: ffmpeg-6-CVE-2024-32228-shim-1535d338.patch
Patch95: ffmpeg-6-CVE-2024-32228-shim-f50382cb.patch
Patch96: ffmpeg-6-CVE-2024-32230.patch
Patch97: ffmpeg-c99.patch
BuildRequires: c_compiler
Requires: this-is-only-for-build-envs

126
ffmpeg-c99.patch Normal file
View File

@ -0,0 +1,126 @@
From: Filip Kastl <fkastl@opensuse.org>
Date: Fri, 26 Jul 2024 14:39:42 +0000
I based the package patch on this bug report (there's a patch in
the comments)
https://bugs.gentoo.org/936433
and on these patches
https://ffmpeg.org/pipermail/ffmpeg-devel/2023-December/318685.html
http://git.videolan.org/?p=ffmpeg.git;a=commitdiff;h=5860a966d2fffbbda1af0014f0a4d37a21c4f2ca
Index: ffmpeg-6.1.1/libavfilter/vsrc_testsrc_vulkan.c
===================================================================
--- ffmpeg-6.1.1.orig/libavfilter/vsrc_testsrc_vulkan.c
+++ ffmpeg-6.1.1/libavfilter/vsrc_testsrc_vulkan.c
@@ -231,7 +231,7 @@ static int testsrc_vulkan_activate(AVFil
return AVERROR(ENOMEM);
err = ff_vk_filter_process_simple(&s->vkctx, &s->e, &s->pl, s->picref, NULL,
- NULL, &s->opts, sizeof(s->opts));
+ VK_NULL_HANDLE, &s->opts, sizeof(s->opts));
if (err < 0)
return err;
}
@@ -250,7 +250,7 @@ static int testsrc_vulkan_activate(AVFil
frame->sample_aspect_ratio = s->sar;
if (!s->draw_once) {
err = ff_vk_filter_process_simple(&s->vkctx, &s->e, &s->pl, frame, NULL,
- NULL, &s->opts, sizeof(s->opts));
+ VK_NULL_HANDLE, &s->opts, sizeof(s->opts));
if (err < 0) {
av_frame_free(&frame);
return err;
Index: ffmpeg-6.1.1/libavutil/hwcontext_vaapi.c
===================================================================
--- ffmpeg-6.1.1.orig/libavutil/hwcontext_vaapi.c
+++ ffmpeg-6.1.1/libavutil/hwcontext_vaapi.c
@@ -1086,7 +1086,7 @@ static int vaapi_map_from_drm(AVHWFrames
int err, i, j;
#if !VA_CHECK_VERSION(1, 1, 0)
- unsigned long buffer_handle;
+ uintptr_t buffer_handle;
VASurfaceAttribExternalBuffers buffer_desc;
VASurfaceAttrib attrs[2] = {
{
@@ -1203,7 +1203,7 @@ static int vaapi_map_from_drm(AVHWFrames
if (!use_prime2 || vas != VA_STATUS_SUCCESS) {
int k;
- unsigned long buffer_handle;
+ uintptr_t buffer_handle;
VASurfaceAttribExternalBuffers buffer_desc;
VASurfaceAttrib buffer_attrs[2] = {
{
Index: ffmpeg-6.1.1/libavcodec/vulkan_av1.c
===================================================================
--- ffmpeg-6.1.1.orig/libavcodec/vulkan_av1.c
+++ ffmpeg-6.1.1/libavcodec/vulkan_av1.c
@@ -180,7 +180,7 @@ static int vk_av1_create_params(AVCodecC
.sType = VK_STRUCTURE_TYPE_VIDEO_SESSION_PARAMETERS_CREATE_INFO_KHR,
.pNext = &av1_params,
.videoSession = ctx->common.session,
- .videoSessionParametersTemplate = NULL,
+ .videoSessionParametersTemplate = VK_NULL_HANDLE,
};
err = ff_vk_decode_create_params(buf, avctx, ctx, &session_params_create);
Index: ffmpeg-6.1.1/libavcodec/vulkan_decode.c
===================================================================
--- ffmpeg-6.1.1.orig/libavcodec/vulkan_decode.c
+++ ffmpeg-6.1.1/libavcodec/vulkan_decode.c
@@ -187,10 +187,10 @@ int ff_vk_decode_prepare_frame(FFVulkanD
if (vkpic->img_view_ref)
return 0;
- vkpic->dpb_frame = NULL;
- vkpic->img_view_ref = NULL;
- vkpic->img_view_out = NULL;
- vkpic->img_view_dest = NULL;
+ vkpic->dpb_frame = VK_NULL_HANDLE;
+ vkpic->img_view_ref = VK_NULL_HANDLE;
+ vkpic->img_view_out = VK_NULL_HANDLE;
+ vkpic->img_view_dest = VK_NULL_HANDLE;
vkpic->destroy_image_view = vk->DestroyImageView;
vkpic->wait_semaphores = vk->WaitSemaphores;
Index: ffmpeg-6.1.1/libavcodec/vulkan_h264.c
===================================================================
--- ffmpeg-6.1.1.orig/libavcodec/vulkan_h264.c
+++ ffmpeg-6.1.1/libavcodec/vulkan_h264.c
@@ -315,7 +315,7 @@ static int vk_h264_create_params(AVCodec
.sType = VK_STRUCTURE_TYPE_VIDEO_SESSION_PARAMETERS_CREATE_INFO_KHR,
.pNext = &h264_params,
.videoSession = ctx->common.session,
- .videoSessionParametersTemplate = NULL,
+ .videoSessionParametersTemplate = VK_NULL_HANDLE,
};
/* SPS list */
Index: ffmpeg-6.1.1/libavcodec/vulkan_hevc.c
===================================================================
--- ffmpeg-6.1.1.orig/libavcodec/vulkan_hevc.c
+++ ffmpeg-6.1.1/libavcodec/vulkan_hevc.c
@@ -653,7 +653,7 @@ static int vk_hevc_create_params(AVCodec
.sType = VK_STRUCTURE_TYPE_VIDEO_SESSION_PARAMETERS_CREATE_INFO_KHR,
.pNext = &h265_params,
.videoSession = ctx->common.session,
- .videoSessionParametersTemplate = NULL,
+ .videoSessionParametersTemplate = VK_NULL_HANDLE,
};
HEVCHeaderSet *hdr;
Index: ffmpeg-6.1.1/libavcodec/vulkan_video.c
===================================================================
--- ffmpeg-6.1.1.orig/libavcodec/vulkan_video.c
+++ ffmpeg-6.1.1/libavcodec/vulkan_video.c
@@ -287,7 +287,7 @@ av_cold void ff_vk_video_common_uninit(F
if (common->session) {
vk->DestroyVideoSessionKHR(s->hwctx->act_dev, common->session,
s->hwctx->alloc);
- common->session = NULL;
+ common->session = VK_NULL_HANDLE;
}
if (common->nb_mem && common->mem)