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ffmpeg-5/ffmpeg-dlopen-openh264.patch
Jan Engelhardt a6e6aeedfc Accepting request 1080435 from home:iznogood:branches:multimedia:libs 
- Update to version 5.1.3:
  * avcodec/012v: Order operations for odd size handling
  * avcodec/alsdec:
    - Check bits left before block decoding in non multi channel
      coding loop
    - The minimal block is at least 7 bits
  * avcodec/atrac3plus: reorder channels to match the output layout
  * avcodec/audiotoolboxenc: return AVERROR_EXTERNAL immediately
    when encode error
  * avcodec/bink:
    - Avoid undefined out of array end pointers in
      binkb_decode_plane()
    - Fix off by 1 error in ref end
  * avcodec/eac3dec: avoid float noise in fixed mode addition to
    overflow
  * avcodec/eatgq: : Check index increments in tgq_decode_block()
  * avcodec/escape124:
    - Fix signdness of end of input check
    - Fix some return codes
  * avcodec/ffv1dec:
    - Check that num h/v slices is supported
    - Fail earlier if prior context is corrupted
  * avcodec/ffv1dec: restructure slice coordinate reading a bit
  * avcodec/h274: fix include
  * avcodec/libjxldec:
    - Fix gamma22 and gamma28 recognition
    - Avoid hard failure with unspecified primaries
  * avcodec/mjpegenc: take into account component count when
    writing the SOF header size
  * avcodec/mlpdec: Check max matrix instead of max channel in
    noise check
  * avcodec/motionpixels: Mask pixels to valid values
  * avcodec/mpeg12dec:
    - Check input size
    - Use init_get_bits8 and check the return value
  * avcodec/nvenc: fix vbv buffer size in cq mode
  * avcodec/pictordec: Remove mid exit branch
  * avcodec/pngdec:
    - Check deloco index more exactly
    - Dont skip/read chunk twice
  * avcodec/rpzaenc: stop accessing out of bounds frame
  * avcodec/scpr3: Check bx
  * avcodec/scpr: Test bx before use
  * avcodec/smcenc: stop accessing out of bounds frame
  * avcodec/snowenc: Fix visual weight calculation
  * avcodec/speedhq: Check buf_size to be big enough for DC
  * avcodec/speexdec: Check channels > 2
  * avcodec/sunrast: Fix maplength check
  * avcodec/tests/snowenc:
    - Fix 2nd test
    - Return a failure if DWT/IDWT mismatches
    - Unbreak DWT tests
  * avcodec/tiff: Ignore tile_count
  * avcodec/utils:
    - Allocate a line more for VC1 and WMV3
    - Ensure linesize for SVQ3
    - Use 32pixel alignment for bink
  * avcodec/videodsp_template: Adjust pointers to avoid undefined
    pointer things
  * avcodec/wavpack:
    - Avoid undefined shift in get_tail()
    - Check for end of input in wv_unpack_dsd_high()
  * avcodec/xpmdec: Check size before allocation to avoid
    truncation
  * avcodec/aacdec: fix parsing streams with channel configuration
    11
  * avformat/id3v2: Check taglen in read_uslt()
  * avformat/mov: Check samplesize and offset to avoid integer
    overflow
  * avformat/mxfdec: Use 64bit in remainder
  * avformat/replaygain: avoid undefined / negative abs
  * avformat/vividas: Check packet size
  * avutil/tx: Use unsigned in ff_tx_fft_sr_combine() to avoid
    undefined behavior
  * hwcontext_vulkan: remove optional encode/decode extensions from
    the list
  * lavf/async: Fix ring_write return value
  * lavu/vulkan: fix handle type for 32-bit targets
  * libswscale: force a minimum size of the slide for bayer sources
  * swscale/input: Use more unsigned intermediates
  * swscale/output:
    - Bias 16bps output calculations to improve non overflowing
      range
    - Bias 16bps output calculations to improve non overflowing
      range for GBRP16/GBRPF32
  * swscale: aarch64: Fix yuv2rgb with negative strides
  * Use https for repository links
  * vulkan: Fix win/i386 calling convention
- Rebase patches with quilt.
- Drop ffmpeg-CVE-2022-3964.patch: Fixed upstream.
- Drop no-vk-video-decoding.patch: Upstream removed this optional
  code.
- Use ldconfig_scriptlets macro.

OBS-URL: https://build.opensuse.org/request/show/1080435
OBS-URL: https://build.opensuse.org/package/show/multimedia:libs/ffmpeg-5?expand=0&rev=67
2023-04-19 22:08:37 +00:00

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From 4739b0c97b3378bdaf737171777fe9a71a53eff1 Mon Sep 17 00:00:00 2001
From: Neal Gompa <ngompa@fedoraproject.org>
Date: Wed, 12 Oct 2022 09:41:27 -0400
Subject: [PATCH] avcodec/openh264: Add the ability to dlopen() OpenH264
We can't directly depend on OpenH264, but we can weakly link to it
and gracefully expose the capability.
Co-authored-by: Andreas Schneider <asn@cryptomilk.org>
Co-authored-by: Neal Gompa <ngompa@fedoraproject.org>
Signed-off-by: Andreas Schneider <asn@cryptomilk.org>
Signed-off-by: Neal Gompa <ngompa@fedoraproject.org>
---
configure | 3 +
libavcodec/Makefile | 1 +
libavcodec/libopenh264.c | 18 +++-
libavcodec/libopenh264_dlopen.c | 147 ++++++++++++++++++++++++++++++++
libavcodec/libopenh264_dlopen.h | 58 +++++++++++++
libavcodec/libopenh264dec.c | 10 +++
libavcodec/libopenh264enc.c | 10 +++
7 files changed, 245 insertions(+), 2 deletions(-)
create mode 100644 libavcodec/libopenh264_dlopen.c
create mode 100644 libavcodec/libopenh264_dlopen.h
Index: ffmpeg-5.1.3/configure
===================================================================
--- ffmpeg-5.1.3.orig/configure
+++ ffmpeg-5.1.3/configure
@@ -252,6 +252,7 @@ External library support:
--enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
--enable-libopencv enable video filtering via libopencv [no]
--enable-libopenh264 enable H.264 encoding via OpenH264 [no]
+ --enable-libopenh264-dlopen enable H.264 encoding via dlopen()'ed OpenH264 [no]
--enable-libopenjpeg enable JPEG 2000 de/encoding via OpenJPEG [no]
--enable-libopenmpt enable decoding tracked files via libopenmpt [no]
--enable-libopenvino enable OpenVINO as a DNN module backend
@@ -1846,6 +1847,7 @@ EXTERNAL_LIBRARY_LIST="
libmysofa
libopencv
libopenh264
+ libopenh264_dlopen
libopenjpeg
libopenmpt
libopenvino
@@ -6599,6 +6601,7 @@ enabled libopencv && { check_hea
require libopencv opencv2/core/core_c.h cvCreateImageHeader -lopencv_core -lopencv_imgproc; } ||
require_pkg_config libopencv opencv opencv/cxcore.h cvCreateImageHeader; }
enabled libopenh264 && require_pkg_config libopenh264 openh264 wels/codec_api.h WelsGetCodecVersion
+enabled libopenh264_dlopen && enable libopenh264 && add_cppflags "-I$(dirname `readlink -f $0`)/ffdlopenhdrs/include -DCONFIG_LIBOPENH264_DLOPEN=1"
enabled libopenjpeg && { check_pkg_config libopenjpeg "libopenjp2 >= 2.1.0" openjpeg.h opj_version ||
{ require_pkg_config libopenjpeg "libopenjp2 >= 2.1.0" openjpeg.h opj_version -DOPJ_STATIC && add_cppflags -DOPJ_STATIC; } }
enabled libopenmpt && require_pkg_config libopenmpt "libopenmpt >= 0.2.6557" libopenmpt/libopenmpt.h openmpt_module_create -lstdc++ && append libopenmpt_extralibs "-lstdc++"
Index: ffmpeg-5.1.3/libavcodec/Makefile
===================================================================
--- ffmpeg-5.1.3.orig/libavcodec/Makefile
+++ ffmpeg-5.1.3/libavcodec/Makefile
@@ -1075,6 +1075,7 @@ OBJS-$(CONFIG_LIBMP3LAME_ENCODER)
OBJS-$(CONFIG_LIBOPENCORE_AMRNB_DECODER) += libopencore-amr.o
OBJS-$(CONFIG_LIBOPENCORE_AMRNB_ENCODER) += libopencore-amr.o
OBJS-$(CONFIG_LIBOPENCORE_AMRWB_DECODER) += libopencore-amr.o
+OBJS-$(CONFIG_LIBOPENH264_DLOPEN) += libopenh264_dlopen.o
OBJS-$(CONFIG_LIBOPENH264_DECODER) += libopenh264dec.o libopenh264.o
OBJS-$(CONFIG_LIBOPENH264_ENCODER) += libopenh264enc.o libopenh264.o
OBJS-$(CONFIG_LIBOPENJPEG_DECODER) += libopenjpegdec.o
Index: ffmpeg-5.1.3/libavcodec/libopenh264.c
===================================================================
--- ffmpeg-5.1.3.orig/libavcodec/libopenh264.c
+++ ffmpeg-5.1.3/libavcodec/libopenh264.c
@@ -20,8 +20,13 @@
*/
#include <string.h>
+
+#ifdef CONFIG_LIBOPENH264_DLOPEN
+#include "libopenh264_dlopen.h"
+#else
#include <wels/codec_api.h>
#include <wels/codec_ver.h>
+#endif
#include "libavutil/error.h"
#include "libavutil/log.h"
@@ -52,8 +57,17 @@ int ff_libopenh264_check_version(void *l
// Mingw GCC < 4.7 on x86_32 uses an incorrect/buggy ABI for the WelsGetCodecVersion
// function (for functions returning larger structs), thus skip the check in those
// configurations.
-#if !defined(_WIN32) || !defined(__GNUC__) || !ARCH_X86_32 || AV_GCC_VERSION_AT_LEAST(4, 7)
- OpenH264Version libver = WelsGetCodecVersion();
+ // Also, for dlopened OpenH264, we should not do the version check. It's too punitive.
+#if !defined(_WIN32) || !defined(__GNUC__) || !ARCH_X86_32 || AV_GCC_VERSION_AT_LEAST(4, 7) || !defined(CONFIG_LIBOPENH264_DLOPEN)
+ OpenH264Version libver;
+
+#ifdef CONFIG_LIBOPENH264_DLOPEN
+ if (loadLibOpenH264(logctx)) {
+ return AVERROR_EXTERNAL;
+ }
+#endif
+
+ libver = WelsGetCodecVersion();
if (memcmp(&libver, &g_stCodecVersion, sizeof(libver))) {
av_log(logctx, AV_LOG_ERROR, "Incorrect library version loaded\n");
return AVERROR(EINVAL);
Index: ffmpeg-5.1.3/libavcodec/libopenh264_dlopen.c
===================================================================
--- /dev/null
+++ ffmpeg-5.1.3/libavcodec/libopenh264_dlopen.c
@@ -0,0 +1,147 @@
+/*
+ * OpenH264 dlopen code
+ *
+ * Copyright (C) 2022 Andreas Schneider <asn@cryptomilk.org>
+ *
+ * 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
+ */
+
+#include <dlfcn.h>
+
+#include "libopenh264_dlopen.h"
+
+/*
+ * The symbol binding makes sure we do not run into strict aliasing issues which
+ * can lead into segfaults.
+ */
+typedef int (*__oh264_WelsCreateSVCEncoder)(ISVCEncoder **);
+typedef void (*__oh264_WelsDestroySVCEncoder)(ISVCEncoder *);
+typedef int (*__oh264_WelsGetDecoderCapability)(SDecoderCapability *);
+typedef long (*__oh264_WelsCreateDecoder)(ISVCDecoder **);
+typedef void (*__oh264_WelsDestroyDecoder)(ISVCDecoder *);
+typedef OpenH264Version (*__oh264_WelsGetCodecVersion)(void);
+typedef void (*__oh264_WelsGetCodecVersionEx)(OpenH264Version *);
+
+#define OH264_SYMBOL_ENTRY(i) \
+ union { \
+ __oh264_##i f; \
+ void *obj; \
+ } _oh264_##i
+
+struct oh264_symbols {
+ OH264_SYMBOL_ENTRY(WelsCreateSVCEncoder);
+ OH264_SYMBOL_ENTRY(WelsDestroySVCEncoder);
+ OH264_SYMBOL_ENTRY(WelsGetDecoderCapability);
+ OH264_SYMBOL_ENTRY(WelsCreateDecoder);
+ OH264_SYMBOL_ENTRY(WelsDestroyDecoder);
+ OH264_SYMBOL_ENTRY(WelsGetCodecVersion);
+ OH264_SYMBOL_ENTRY(WelsGetCodecVersionEx);
+};
+
+/* Symbols are bound by loadLibOpenH264() */
+static struct oh264_symbols openh264_symbols;
+
+int oh264_WelsCreateSVCEncoder(ISVCEncoder **ppEncoder) {
+ return openh264_symbols._oh264_WelsCreateSVCEncoder.f(ppEncoder);
+}
+
+void oh264_WelsDestroySVCEncoder(ISVCEncoder *pEncoder) {
+ return openh264_symbols._oh264_WelsDestroySVCEncoder.f(pEncoder);
+}
+
+int oh264_WelsGetDecoderCapability(SDecoderCapability *pDecCapability) {
+ return openh264_symbols._oh264_WelsGetDecoderCapability.f(pDecCapability);
+}
+
+long oh264_WelsCreateDecoder(ISVCDecoder **ppDecoder) {
+ return openh264_symbols._oh264_WelsCreateDecoder.f(ppDecoder);
+}
+
+void oh264_WelsDestroyDecoder(ISVCDecoder *pDecoder) {
+ return openh264_symbols._oh264_WelsDestroyDecoder.f(pDecoder);
+}
+
+OpenH264Version oh264_WelsGetCodecVersion(void) {
+ return openh264_symbols._oh264_WelsGetCodecVersion.f();
+}
+
+void oh264_WelsGetCodecVersionEx(OpenH264Version *pVersion) {
+ openh264_symbols._oh264_WelsGetCodecVersionEx.f(pVersion);
+}
+
+static void *_oh264_bind_symbol(AVCodecContext *avctx,
+ void *handle,
+ const char *sym_name) {
+ void *sym = NULL;
+
+ sym = dlsym(handle, sym_name);
+ if (sym == NULL) {
+ const char *err = dlerror();
+ av_log(avctx,
+ AV_LOG_WARNING,
+ "%s: Failed to bind %s\n",
+ err,
+ sym_name);
+ return NULL;
+ }
+
+ return sym;
+}
+
+#define oh264_bind_symbol(avctx, handle, sym_name) \
+ if (openh264_symbols._oh264_##sym_name.obj == NULL) { \
+ openh264_symbols._oh264_##sym_name.obj = _oh264_bind_symbol(avctx, handle, #sym_name); \
+ if (openh264_symbols._oh264_##sym_name.obj == NULL) { \
+ return 1; \
+ } \
+ }
+
+int loadLibOpenH264(AVCodecContext *avctx) {
+ static bool initialized = false;
+ void *libopenh264 = NULL;
+ const char *err = NULL;
+
+ if (initialized) {
+ return 0;
+ }
+
+#define OPENH264_LIB "libopenh264.so.7"
+ libopenh264 = dlopen(OPENH264_LIB, RTLD_LAZY);
+ err = dlerror();
+ if (err != NULL) {
+ av_log(avctx, AV_LOG_WARNING,
+ "%s: %s is missing, openh264 support will be disabled\n", err,
+ OPENH264_LIB);
+
+ if (libopenh264 != NULL) {
+ dlclose(libopenh264);
+ }
+ return 1;
+ }
+
+ oh264_bind_symbol(avctx, libopenh264, WelsCreateSVCEncoder);
+ oh264_bind_symbol(avctx, libopenh264, WelsDestroySVCEncoder);
+ oh264_bind_symbol(avctx, libopenh264, WelsGetDecoderCapability);
+ oh264_bind_symbol(avctx, libopenh264, WelsCreateDecoder);
+ oh264_bind_symbol(avctx, libopenh264, WelsDestroyDecoder);
+ oh264_bind_symbol(avctx, libopenh264, WelsGetCodecVersion);
+ oh264_bind_symbol(avctx, libopenh264, WelsGetCodecVersionEx);
+
+ initialized = true;
+
+ return 0;
+}
Index: ffmpeg-5.1.3/libavcodec/libopenh264_dlopen.h
===================================================================
--- /dev/null
+++ ffmpeg-5.1.3/libavcodec/libopenh264_dlopen.h
@@ -0,0 +1,58 @@
+/*
+ * OpenH264 dlopen code
+ *
+ * Copyright (C) 2022 Andreas Schneider <asn@cryptomilk.org>
+ *
+ * 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
+ */
+
+#ifndef HAVE_LIBOPENH264_DLOPEN_H
+#define HAVE_LIBOPENH264_DLOPEN_H
+
+#ifdef CONFIG_LIBOPENH264_DLOPEN
+
+#include <wels/codec_api.h>
+#include <wels/codec_ver.h>
+
+#include "avcodec.h"
+
+int oh264_WelsCreateSVCEncoder(ISVCEncoder **ppEncoder);
+#define WelsCreateSVCEncoder oh264_WelsCreateSVCEncoder
+
+void oh264_WelsDestroySVCEncoder(ISVCEncoder *pEncoder);
+#define WelsDestroySVCEncoder oh264_WelsDestroySVCEncoder
+
+int oh264_WelsGetDecoderCapability(SDecoderCapability *pDecCapability);
+#define WelsGetDecoderCapability oh264_WelsGetDecoderCapability
+
+long oh264_WelsCreateDecoder(ISVCDecoder **ppDecoder);
+#define WelsCreateDecoder oh264_WelsCreateDecoder
+
+void oh264_WelsDestroyDecoder(ISVCDecoder *pDecoder);
+#define WelsDestroyDecoder oh264_WelsDestroyDecoder
+
+OpenH264Version oh264_WelsGetCodecVersion(void);
+#define WelsGetCodecVersion oh264_WelsGetCodecVersion
+
+void oh264_WelsGetCodecVersionEx(OpenH264Version *pVersion);
+#define WelsGetCodecVersionEx oh264_WelsGetCodecVersionEx
+
+int loadLibOpenH264(AVCodecContext *avctx);
+
+#endif /* CONFIG_LIBOPENH264_DLOPEN */
+
+#endif /* HAVE_LIBOPENH264_DLOPEN_H */
Index: ffmpeg-5.1.3/libavcodec/libopenh264dec.c
===================================================================
--- ffmpeg-5.1.3.orig/libavcodec/libopenh264dec.c
+++ ffmpeg-5.1.3/libavcodec/libopenh264dec.c
@@ -19,8 +19,12 @@
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
+#ifdef CONFIG_LIBOPENH264_DLOPEN
+#include "libopenh264_dlopen.h"
+#else
#include <wels/codec_api.h>
#include <wels/codec_ver.h>
+#endif
#include "libavutil/common.h"
#include "libavutil/fifo.h"
@@ -56,6 +60,12 @@ static av_cold int svc_decode_init(AVCod
int log_level;
WelsTraceCallback callback_function;
+#ifdef CONFIG_LIBOPENH264_DLOPEN
+ if (loadLibOpenH264(avctx)) {
+ return AVERROR_DECODER_NOT_FOUND;
+ }
+#endif
+
if ((err = ff_libopenh264_check_version(avctx)) < 0)
return AVERROR_DECODER_NOT_FOUND;
Index: ffmpeg-5.1.3/libavcodec/libopenh264enc.c
===================================================================
--- ffmpeg-5.1.3.orig/libavcodec/libopenh264enc.c
+++ ffmpeg-5.1.3/libavcodec/libopenh264enc.c
@@ -19,8 +19,12 @@
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
+#ifdef CONFIG_LIBOPENH264_DLOPEN
+#include "libopenh264_dlopen.h"
+#else
#include <wels/codec_api.h>
#include <wels/codec_ver.h>
+#endif
#include "libavutil/attributes.h"
#include "libavutil/common.h"
@@ -137,6 +141,12 @@ static av_cold int svc_encode_init(AVCod
WelsTraceCallback callback_function;
AVCPBProperties *props;
+#ifdef CONFIG_LIBOPENH264_DLOPEN
+ if (loadLibOpenH264(avctx)) {
+ return AVERROR_ENCODER_NOT_FOUND;
+ }
+#endif
+
if ((err = ff_libopenh264_check_version(avctx)) < 0)
return AVERROR_ENCODER_NOT_FOUND;
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