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Add support for dlopening OpenH264 and add tarball scripts as sources

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This commit is contained in:
Neal Gompa 2022-02-15 10:29:36 -05:00
parent c06bca7fd7
commit d0a64b9dfc
7 changed files with 387 additions and 7 deletions
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1
enable_decoders
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@ -35,6 +35,7 @@ libcelt # celt, opus
libcodec2 # codec2
libdav1d # av1
libgsm # libgsm
libopenh264 # openh264_dlopen
libopenjpeg # openjpeg
libopus # opus
libschroedinger # schroedinger

1
enable_encoders
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@ -28,6 +28,7 @@ libaom_av1 # libaom
libcodec2 # codec2
libgsm # libgsm
libmp3lame # lame
libopenh264 # openh264_dlopen
libopenjpeg # openjpeg
libopus # opus
librav1e # rav1e

311
ffmpeg-dlopen-openh264.patch Normal file
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@ -0,0 +1,311 @@
From 23c6bb2850b82c473e67df111333479805b0ba4b Mon Sep 17 00:00:00 2001
From: Neal Gompa <ngompa@fedoraproject.org>
Date: Tue, 15 Feb 2022 10:29:05 -0500
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: Neal Gompa <ngompa@fedoraproject.org>
---
configure | 3 +
libavcodec/libopenh264.c | 11 +++
libavcodec/libopenh264_dlopen.h | 164 ++++++++++++++++++++++++++++++++
libavcodec/libopenh264dec.c | 9 ++
libavcodec/libopenh264enc.c | 9 ++
5 files changed, 196 insertions(+)
create mode 100644 libavcodec/libopenh264_dlopen.h
diff --git a/configure b/configure
index 6b5ef6332e..f08e566e98 100755
--- a/configure
+++ b/configure
@@ -250,6 +250,7 @@ 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
@@ -1839,6 +1840,7 @@ EXTERNAL_LIBRARY_LIST="
libmysofa
libopencv
libopenh264
+ libopenh264_dlopen
libopenjpeg
libopenmpt
libopenvino
@@ -6575,6 +6577,7 @@ enabled libopencv && { check_headers opencv2/core/core_c.h &&
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++"
diff --git a/libavcodec/libopenh264.c b/libavcodec/libopenh264.c
index 59c61a3a4c..382a34562a 100644
--- a/libavcodec/libopenh264.c
+++ b/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/log.h"
@@ -52,6 +57,12 @@ int ff_libopenh264_check_version(void *logctx)
// 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)
+
+#ifdef CONFIG_LIBOPENH264_DLOPEN
+ if (loadLibOpenH264(logctx))
+ return -1;
+#endif
+
OpenH264Version libver = WelsGetCodecVersion();
if (memcmp(&libver, &g_stCodecVersion, sizeof(libver))) {
av_log(logctx, AV_LOG_ERROR, "Incorrect library version loaded\n");
diff --git a/libavcodec/libopenh264_dlopen.h b/libavcodec/libopenh264_dlopen.h
new file mode 100644
index 0000000000..c58fcd704d
--- /dev/null
+++ b/libavcodec/libopenh264_dlopen.h
@@ -0,0 +1,164 @@
+/*!
+ *@page License
+ *
+ * \copy
+ * Copyright (c) 2022, Andreas Schneider <asn@cryptomilk.org>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * 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 HOLDER 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.
+ *
+ */
+
+#ifdef CONFIG_LIBOPENH264_DLOPEN
+
+#include <dlfcn.h>
+
+#include <wels/codec_api.h>
+#include <wels/codec_ver.h>
+
+#include "avcodec.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;
+
+static int oh264_WelsCreateSVCEncoder(ISVCEncoder **ppEncoder) {
+ return openh264_symbols._oh264_WelsCreateSVCEncoder.f(ppEncoder);
+}
+#define WelsCreateSVCEncoder oh264_WelsCreateSVCEncoder
+
+static void oh264_WelsDestroySVCEncoder(ISVCEncoder *pEncoder) {
+ return openh264_symbols._oh264_WelsDestroySVCEncoder.f(pEncoder);
+}
+#define WelsDestroySVCEncoder oh264_WelsDestroySVCEncoder
+
+static int oh264_WelsGetDecoderCapability(SDecoderCapability *pDecCapability) {
+ return openh264_symbols._oh264_WelsGetDecoderCapability.f(pDecCapability);
+}
+#define WelsGetDecoderCapability oh264_WelsGetDecoderCapability
+
+static long oh264_WelsCreateDecoder(ISVCDecoder **ppDecoder) {
+ return openh264_symbols._oh264_WelsCreateDecoder.f(ppDecoder);
+}
+#define WelsCreateDecoder oh264_WelsCreateDecoder
+
+static void oh264_WelsDestroyDecoder(ISVCDecoder *pDecoder) {
+ return openh264_symbols._oh264_WelsDestroyDecoder.f(pDecoder);
+}
+#define WelsDestroyDecoder oh264_WelsDestroyDecoder
+
+static OpenH264Version oh264_WelsGetCodecVersion(void) {
+ return openh264_symbols._oh264_WelsGetCodecVersion.f();
+}
+#define WelsGetCodecVersion oh264_WelsGetCodecVersion
+
+static void oh264_WelsGetCodecVersionEx(OpenH264Version *pVersion) {
+ openh264_symbols._oh264_WelsGetCodecVersionEx.f(pVersion);
+}
+#define WelsGetCodecVersionEx oh264_WelsGetCodecVersionEx
+
+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; \
+ } \
+ }
+
+static int loadLibOpenH264(AVCodecContext *avctx) {
+ void *libopenh264 = NULL;
+ const char *err = NULL;
+
+#define OPENH264_LIB "libopenh264.so.6"
+ 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) {
+ 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);
+
+ return 0;
+}
+
+#endif // CONFIG_LIBOPENH264_DLOPEN
diff --git a/libavcodec/libopenh264dec.c b/libavcodec/libopenh264dec.c
index 7f5e85402a..281e43c3c0 100644
--- a/libavcodec/libopenh264dec.c
+++ b/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"
@@ -55,6 +59,11 @@ static av_cold int svc_decode_init(AVCodecContext *avctx)
int log_level;
WelsTraceCallback callback_function;
+#ifdef CONFIG_LIBOPENH264_DLOPEN
+ if (loadLibOpenH264(avctx))
+ return -1;
+#endif
+
if ((err = ff_libopenh264_check_version(avctx)) < 0)
return err;
diff --git a/libavcodec/libopenh264enc.c b/libavcodec/libopenh264enc.c
index de4b85c411..555351982e 100644
--- a/libavcodec/libopenh264enc.c
+++ b/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"
@@ -136,6 +140,11 @@ static av_cold int svc_encode_init(AVCodecContext *avctx)
WelsTraceCallback callback_function;
AVCPBProperties *props;
+#ifdef CONFIG_LIBOPENH264_DLOPEN
+ if (loadLibOpenH264(avctx))
+ return -1;
+#endif
+
if ((err = ff_libopenh264_check_version(avctx)) < 0)
return err;
--
2.34.1

32
ffmpeg.spec
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@ -52,6 +52,10 @@
%global _lto_cflags %{nil}
%endif
%if "%{__isa_bits}" == "64"
%global lib64_suffix ()(64bit)
%endif
%global av_codec_soversion 59
%global av_device_soversion 59
%global av_filter_soversion 8
@ -65,18 +69,24 @@ Name: ffmpeg
%global pkg_name %{name}%{?pkg_suffix}
Version: 5.0
Release: 3%{?dist}
Release: 4%{?dist}
Summary: A complete solution to record, convert and stream audio and video
License: GPLv3+
URL: https://ffmpeg.org/
Source0: ffmpeg%{?pkg_suffix}-%{version}.tar.xz
Source1: https://ffmpeg.org/releases/ffmpeg-%{version}.tar.xz.asc
Source1: ffmpeg-dlopen-headers.tar.xz
Source2: https://ffmpeg.org/releases/ffmpeg-%{version}.tar.xz.asc
# https://ffmpeg.org/ffmpeg-devel.asc
# gpg2 --import --import-options import-export,import-minimal ffmpeg-devel.asc > ./ffmpeg.keyring
Source2: ffmpeg.keyring
Source3: ffmpeg_free_sources
Source3: ffmpeg.keyring
Source4: ffmpeg_free_sources
Source20: enable_decoders
Source21: enable_encoders
# Scripts for generating tarballs
Source90: ffmpeg_update_free_sources.sh
Source91: ffmpeg_gen_free_tarball.sh
Source92: ffmpeg_get_dlopen_headers.sh
# Change path from /usr/local to /usr
Patch1: fix-vmaf-model-path.patch
# Some header cleanup
@ -94,6 +104,9 @@ Patch6: ffmpeg-fix-gnutls-priority.patch
# https://ffmpeg.org/pipermail/ffmpeg-devel/2021-September/285401.html
Patch7: ffmpeg-support-chromium.patch
# Set up dlopen for openh264
Patch1001: ffmpeg-dlopen-openh264.patch
Requires: libavcodec%{?pkg_suffix}%{_isa} = %{version}-%{release}
Requires: libavdevice%{?pkg_suffix}%{_isa} = %{version}-%{release}
Requires: libavfilter%{?pkg_suffix}%{_isa} = %{version}-%{release}
@ -291,6 +304,8 @@ break compatibility without any notice.
Summary: FFmpeg codec library
Requires: libavutil%{?pkg_suffix}%{_isa} = %{version}-%{release}
Requires: libswresample%{?pkg_suffix}%{_isa} = %{version}-%{release}
# We dlopen() openh264, so weak-depend on it...
Recommends: libopenh264.so.6%{?lib64_suffix}
%description -n libavcodec%{?pkg_suffix}
The libavcodec library provides a generic encoding/decoding framework
@ -497,10 +512,10 @@ This subpackage contains the headers for FFmpeg libswscale.
%prep
%if %{with upstream_tarball}
gpgv2 --quiet --keyring %{SOURCE2} %{SOURCE1} %{SOURCE0}
gpgv2 --quiet --keyring %{SOURCE3} %{SOURCE2} %{SOURCE0}
%endif
%autosetup -p1
%autosetup -a1 -p1
install -m 0644 %{SOURCE20} enable_decoders
install -m 0644 %{SOURCE21} enable_encoders
# fix -O3 -g in host_cflags
@ -556,6 +571,7 @@ cp -a doc/examples/{*.c,Makefile,README} _doc/examples/
--enable-libjack \
--enable-libmp3lame \
--enable-libmysofa \
--enable-libopenh264-dlopen \
--enable-libopenjpeg \
--enable-libopenmpt \
--enable-libopus \
@ -800,6 +816,10 @@ rm -rf %{buildroot}%{_datadir}/%{name}/examples
%{_mandir}/man3/libswscale.3*
%changelog
* Tue Feb 15 2022 Neal Gompa <ngompa@fedoraproject.org> - 5.0-4
- Add support for dlopening OpenH264
- Add tarball scripts as sources
* Sun Feb 13 2022 Neal Gompa <ngompa@fedoraproject.org> - 5.0-3
- Enable more QSV and V4L2M2M codecs

4
ffmpeg_free_sources
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@ -682,6 +682,10 @@ libavcodec/libfdk-aacenc.c
libavcodec/libgsmdec.c
libavcodec/libgsmenc.c
libavcodec/libmp3lame.c
libavcodec/libopenh264.c
libavcodec/libopenh264.h
libavcodec/libopenh264dec.c
libavcodec/libopenh264enc.c
libavcodec/libopenjpegdec.c
libavcodec/libopenjpegenc.c
libavcodec/libopus.c

42
ffmpeg_get_dlopen_headers.sh Executable file
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@ -0,0 +1,42 @@
#!/bin/bash
# Script to grab headers from existing packages to support dlopen() codec libraries
# Requires: bash, coreutils, curl, bsdtar, dnf, dnf-plugins-core, tar
# Author: Neal Gompa <ngompa@fedoraproject.org>
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program 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 General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
echo "Setting up..."
# Get local directory
LOCALDIR=$(realpath $(dirname $0))
# Create working area
TMPDIR=$(mktemp -d /tmp/mmheadersXXXXXX)
mkdir -pv $TMPDIR
echo "Fetching headers..."
# Get OpenH264 headers
OPENH264_DEVEL=$(dnf -q download --url 'pkgconfig(openh264)')
curl -L $OPENH264_DEVEL | bsdtar -xvf - --include "./usr/include/*" -C $TMPDIR
echo "Generating tarball..."
# Prep tarball tree
mv -v ${TMPDIR}/usr ${TMPDIR}/ffdlopenhdrs
# Generate tarball
tar --transform "s|^${TMPDIR#?}/||" -cJvf ${LOCALDIR}/ffmpeg-dlopen-headers.tar.xz ${TMPDIR}/ffdlopenhdrs
# Clean up
echo "Cleaning up..."
rm -rfv ${TMPDIR}
echo "Tarball created: ${LOCALDIR}/ffmpeg-dlopen-headers.tar.xz"

3
sources
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@ -1,3 +1,4 @@
SHA512 (ffmpeg-free-5.0.tar.xz) = f6fe84b072041f5dee150d5a4b4d29b747fd60d7ce83fd6f83eaf71bc5d2214e980729281bed8fe2d949cd30d69e50a719d5ca0b3d900b4a559f6598dc5fe8f1
SHA512 (ffmpeg-free-5.0.tar.xz) = 6444ff05eb80544c8ab5f3a713c0765b953b447731ab24559549b2440ccee8888f45a379efd2975850f3ee32d78afe81ed4e639fddc7928d78248d70172a4eb3
SHA512 (ffmpeg-5.0.tar.xz.asc) = 9238fcdc849895147a26669ac90fec94002af86e81270128f6eb0448d74487d8ba06ee08d10686a7a6e204689716ee744bfffc2a39466940940609cfcd7dfa85
SHA512 (ffmpeg-dlopen-headers.tar.xz) = ef47b5a8b5ef5c8c57b2372170ccda3fd6897572ab5aff5e3cd1dd3bbe1f892e42d9f89d1c159c79052a8ac57c42d4a2ebc8636d6f932df00b57f8010c5bfd3b
SHA512 (ffmpeg.keyring) = 9b36506835db36f776b7ddb53ad6fa9e915e6ca2f9c7cfebe8eb45513e1036a985283590a840ca313a111bf35dc3731f68885aaafb1fb7011ec433cc119e5165