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compat.libvpx 1.17.0 and compat.libwebm 1.0.0.32: VP9 and the WebM container (BSD-3-Clause) #624

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Sunrisepeak merged 1 commit into from
Oct 29, 2026
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compat.libvpx 1.17.0 and compat.libwebm 1.0.0.32: VP9 and the WebM container (BSD-3-Clause) #624

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19 changes: 19 additions & 0 deletions CHANGELOG.md
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### Added

- **compat.libvpx 1.17.0(新包)。** libvpx:WebM 项目的 VP9 视频编解码器(编码器与解码器;BSD-3-Clause,附 WebM 项目的
免版税专利授权 PATENTS)。从 `v1.17.0` 标签归档构建上游 `configure --target=generic-gnu --disable-vp8 --enable-vp9
--enable-multithread`(不含示例、工具、文档、单元测试、webm-io、libyuv)所编译的 101 个 C 源文件:通用 C 实现,无 SIMD、
无汇编、无运行时 CPU 检测,同一配置在 x86-64 与 aarch64、Linux、macOS、Windows 与 `wasm32-emscripten` 上不变地构建。
该配置生成的 `vpx_config.h`、`vpx_config.c`、`vpx_version.h` 与三个 RTCD 头(`vp9_rtcd.h`、`vpx_dsp_rtcd.h`、
`vpx_scale_rtcd.h`)作为 `generated_files` 原样提供(私有头目录),只有描述宿主操作系统的三行改由预处理器决定:
Windows 以外有 `pthread.h`、`unistd.h`(Windows 上 `vpx_util/vpx_pthread.h` 用 Win32 实现工作线程),glibc 与 Apple
上有 `pthread_setname_np`;不带 pthreads 的 Emscripten 上 `CONFIG_MULTITHREAD` 为 0(单线程工作器依次执行各块)。
`-ffp-contract=off`。使用者 `#include <vpx/vpx_encoder.h>`、`<vpx/vp8cx.h>` 等(上游安装布局)。url 为上游标签归档
(暂无 CN 镜像);声明 `extensions.autoupdate`。新增测试成员 `tests/examples/libvpx`:版本与构建配置字符串、
一遍编码(好质量、恒定质量)解码回来的 PSNR、实时速度 8、无损逐像素还原、单线程两次编码字节相同、四线程分块编码
两线程解码。
- **compat.libwebm 1.0.0.32(新包)。** libwebm:WebM 项目的 WebM(Matroska)容器库,复用器 mkvmuxer 与解析器 mkvparser
(BSD-3-Clause)。从 `libwebm-1.0.0.32` 标签归档构建上游 CMakeLists.txt 的 `webm` 目标:`common/file_util.cc`、
`common/hdr_util.cc` 与 mkvmuxer、mkvparser 的源文件(不含默认关闭的新解析器 `webm_parser/`、MPEG-TS 工具、WebVTT
与示例程序);无配置头、无生成文件。使用者 `#include <mkvmuxer/mkvmuxer.h>`、`<mkvparser/mkvparser.h>` 等。新增测试
成员 `tests/examples/libwebm`:写一个 VP9 与 Opus 两条轨道的 WebM(BT.709 有限范围的色彩、OpusHead、编码延迟、
关键帧、cues、时长)到内存与磁盘(逐字节相同),用 mkvparser 从内存与 MkvReader 读回每一帧的字节与时间;给定轨道
UID 时两次复用字节相同(不给时 mkvmuxer 按当前时间随机生成)。
- **mcpplibs.mwrap.libwebp 1.5.0(新包)。** libwebp-m:以 C++23 模块(`import mcpplibs.mwrap.libwebp;`)使用
compat.libwebp 1.5.0(BSD-3-Clause 与 Google 专利授权)。从固定版本的公开头文件生成,以 `export using` 导出:根模块
`webp/types.h`、`decode.h`、`encode.h`、`mux_types.h` 的 23 个类型、59 个枚举值与 72 个函数,`mcpplibs.mwrap.libwebp.sharpyuv`
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2 changes: 2 additions & 0 deletions mcpp.toml
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Expand Up @@ -184,6 +184,8 @@ members = [
"tests/examples/pangocairo",
"tests/examples/libgbm",
"tests/examples/libpng",
"tests/examples/libvpx",
"tests/examples/libwebm",
"tests/examples/libwebp",
"tests/examples/llamacpp",
"tests/examples/llamacpp-metal",
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