media-video/ffmpeg: add patches and metadata
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2D8C2F151EDB7392
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Allow libffmpeg to be built for Chromium-based browsers
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https://patchwork.ffmpeg.org/patch/4500/
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NOTE: This patch lacks the Makefile include line. We append it
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manually instead to make patching across different versions easier.
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diff --git a/ffbuild/libffmpeg.mak b/ffbuild/libffmpeg.mak
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new file mode 100644
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index 0000000..992cf3c
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--- /dev/null
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+++ b/ffbuild/libffmpeg.mak
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@@ -0,0 +1,27 @@
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+LIBFFMPEG = $(SLIBPREF)ffmpeg$(SLIBSUF)
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+LIBFFMPEG_LINK = $(LD) -shared -Wl,-soname,$(LIBFFMPEG) -Wl,-Bsymbolic -Wl,-z,now -Wl,-z,relro -Wl,-z,defs -Wl,--gc-sections $(LDFLAGS) $(LDLIBFLAGS) -o $(LIBFFMPEG)
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+
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+ifeq ($(CONFIG_SHARED),yes)
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+LIBFFMPEG_DEPS = libavcodec/$(SLIBPREF)avcodec$(SLIBSUF) libavformat/$(SLIBPREF)avformat$(SLIBSUF) libavutil/$(SLIBPREF)avutil$(SLIBSUF)
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+else
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+LIBFFMPEG_DEPS = libavcodec/$(LIBPREF)avcodec$(LIBSUF) libavformat/$(LIBPREF)avformat$(LIBSUF) libavutil/$(LIBPREF)avutil$(LIBSUF) libswresample/$(LIBPREF)swresample$(LIBSUF)
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+endif
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+
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+$(LIBFFMPEG): $(LIBFFMPEG_DEPS) chromium.o
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+ifeq ($(CONFIG_SHARED),yes)
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+ $(LIBFFMPEG_LINK) -Wl,--no-as-needed chromium.o -lavcodec -lavformat -lavutil
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+else
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+ $(LIBFFMPEG_LINK) -Wl,--whole-archive $^ -Wl,--no-whole-archive $(EXTRALIBS-avcodec) $(EXTRALIBS-avformat) $(EXTRALIBS-avutil) $(EXTRALIBS-swresample)
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+endif
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+
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+libffmpeg: $(LIBFFMPEG)
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+
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+install-libffmpeg: $(LIBFFMPEG)
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+ $(Q)mkdir -p "$(SHLIBDIR)/chromium"
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+ $(INSTALL) -m 755 $< "$(SHLIBDIR)/chromium/$<"
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+ $(STRIP) "$(SHLIBDIR)/chromium/$<"
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+
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+uninstall-libffmpeg:
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+ $(RM) "$(SHLIBDIR)/chromium/$(LIBFFMPEG)"
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+
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+.PHONY: libffmpeg install-libffmpeg uninstall-libffmpeg
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--
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2.13.1
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Bug: https://bugs.gentoo.org/782553
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--- a/libavfilter/Makefile
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+++ b/libavfilter/Makefile
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@@ -663,7 +663,7 @@ clean::
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$(RM) $(CLEANSUFFIXES:%=libavfilter/dnn/%) $(CLEANSUFFIXES:%=libavfilter/opencl/%) \
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$(CLEANSUFFIXES:%=libavfilter/vulkan/%)
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-OPENCL = $(subst $(SRC_PATH)/,,$(wildcard $(SRC_PATH)/libavfilter/opencl/*.cl))
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+OPENCL = $(wildcard libavfilter/opencl/*.cl)
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.SECONDARY: $(OPENCL:.cl=.c)
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libavfilter/opencl/%.c: TAG = OPENCL
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libavfilter/opencl/%.c: $(SRC_PATH)/libavfilter/opencl/%.cl
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<?xml version="1.0" encoding="UTF-8"?>
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<!DOCTYPE pkgmetadata SYSTEM "https://www.gentoo.org/dtd/metadata.dtd">
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<pkgmetadata>
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<maintainer type="project">
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<email>media-video@gentoo.org</email>
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</maintainer>
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<maintainer type="person">
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<email>chewi@gentoo.org</email>
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<name>James Le Cuirot</name>
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<description>chromium and soc USE flags</description>
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</maintainer>
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<use>
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<flag name="amf">Enables support for AMD's Advanced Media Framework (AMF)</flag>
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<flag name="amr">Enables Adaptive Multi-Rate Audio support</flag>
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<flag name="amrenc">Enables Adaptive Multi-Rate Audio encoding support with <pkg>media-libs/vo-amrwbenc</pkg>.</flag>
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<flag name="appkit">Enables Apple AppKit framework</flag>
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<flag name="bluray">Enable playback of Blu-ray filesystems</flag>
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<flag name="bs2b">Enables <pkg>media-libs/libbs2b</pkg> based Bauer stereo-to-binaural filter.</flag>
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<flag name="cdio">Enables audio CD grabbing with <pkg>dev-libs/libcdio</pkg>.</flag>
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<flag name="chromaprint">Enables audio fingerprinting support with <pkg>media-libs/chromaprint</pkg>.</flag>
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<flag name="chromium">Builds libffmpeg.so to enable media playback in Chromium-based browsers like Opera and Vivaldi.</flag>
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<flag name="codec2">Enables codec2 low bit rate speech codec support via <pkg>media-libs/codec2</pkg>.</flag>
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<flag name="cpudetection">Enables runtime CPU detection (useful for bindist, compatibility on other CPUs)</flag>
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<flag name="cuda">Enables CUDA-based acceleration. Mostly used for specific filters.</flag>
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<flag name="dav1d">Enables AV1 decoding via <pkg>media-libs/dav1d</pkg>.</flag>
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<flag name="fdk">Use external fdk-aac library for AAC encoding</flag>
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<flag name="flite">Adds a text-to-speech filter based on <pkg>app-accessibility/flite</pkg>.</flag>
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<flag name="frei0r">Enable frei0r wrapping in libavfilter</flag>
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<flag name="fribidi">Enables fribidi support in the drawtext filter.</flag>
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<flag name="gcrypt">Enables gcrypt support: Needed for rtmp(t)e support if openssl, librtmp or gmp is not used.</flag>
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<flag name="gme">Enables support for <pkg>media-libs/game-music-emu</pkg> for playing various video game music formats.</flag>
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<flag name="glslang">Use <pkg>dev-util/glslang</pkg> to compile GLSL</flag>
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<flag name="gpl">Build GPL code. Should be enabled unless you require LGPL binaries.</flag>
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<flag name="hardcoded-tables">
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Use pre-calculated tables rather than calculating them on the fly.
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It results in an increase of approximately 15% in the size of libavcodec, the main library impacted by this change.
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It enables savings in table generation time, done once at codec initialization, since by hardcoding the tables,
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they do not need to be computed at runtime. However, the savings are often negligible (~100k cycles is a typical number) especially when amortized
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over the entire encoding/decoding operation.
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Improvements are being made to the runtime initialization, and so over time, this option will have an impact on fewer and fewer codecs.
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</flag>
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<flag name="iec61883"> Support for FireWire DV/HDV input device using <pkg>media-libs/libiec61883</pkg>.</flag>
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<flag name="kvazaar">Enables <pkg>media-libs/kvazaar</pkg> based HEVC encoder.</flag>
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<flag name="lcms">Enable ICC profile support via <pkg>media-libs/lcms</pkg>.</flag>
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<flag name="libaom">Enables <pkg>media-libs/libaom</pkg> based AV1 codec support.</flag>
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<flag name="libaribb24">Enables ARIB text and caption decoding via <pkg>media-libs/aribb24</pkg>.</flag>
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<flag name="libdrm">Enables <pkg>x11-libs/libdrm</pkg> support for better screen grabbing and hardware accelerated codecs.</flag>
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<flag name="libilbc">Enables iLBC de/encoding via <pkg>media-libs/libilbc</pkg>.</flag>
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<flag name="libplacebo">Adds flexible GPU-accelerated processing filter based on <pkg>media-libs/libplacebo</pkg>.</flag>
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<flag name="librtmp">Enables Real Time Messaging Protocol using librtmp (<pkg>media-video/rtmpdump</pkg>) in addition to FFmpeg's native implementation.</flag>
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<flag name="libsoxr">Enables audio resampling through <pkg>media-libs/soxr</pkg>.</flag>
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<flag name="libtesseract">Enables the OCR filter via <pkg>app-text/tesseract</pkg>.</flag>
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<flag name="libv4l">Uses <pkg>media-libs/libv4l</pkg> for video4linux instead of direct calls. Adds support for more devices via the userspace library.</flag>
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<flag name="libxml2">Uses <pkg>dev-libs/libxml2</pkg> to enable dash demuxing support.</flag>
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<flag name="lv2">Enables lv2 audio filter wrapper.</flag>
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<flag name="mipsdspr1">Enables MIPS DSP ASE R1 optimizations.</flag>
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<flag name="mipsdspr2">Enables MIPS DSP ASE R2 optimizations.</flag>
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<flag name="mipsfpu">Enables floating point MIPS optimizations.</flag>
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<flag name="qsv">Enable Intel Quick Sync Video via <pkg>media-libs/intel-mediasdk</pkg> (ffmpeg versions older than, and including, 5.1) or <pkg>media-libs/libvpl</pkg> (ffmpeg version newer than 5.1).</flag>
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<flag name="mmal">Enables Multi-Media Abstraction Layer (MMAL) decoding support: Available e.g. on the Raspberry Pi.</flag>
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<flag name="network">Enables network streaming support</flag>
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<flag name="openh264">Enables H.264 encoding suppoprt via <pkg>media-libs/openh264</pkg>.</flag>
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<flag name="openssl">Enables <pkg>dev-libs/openssl</pkg> support. Adds support for encrypted network protocols (TLS/HTTPS).</flag>
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<flag name="pic">Force shared libraries to be built as PIC (this is slower)</flag>
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<flag name="postproc">Build and install libpostproc.</flag>
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<flag name="rav1e">Enables AV1 encoding support via <pkg>media-video/rav1e</pkg>.</flag>
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<flag name="rubberband">Adds time-stretching and pitch-shifting audio filter based on <pkg>media-libs/rubberband</pkg>.</flag>
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<flag name="shaderc">Use <pkg>media-libs/shaderc</pkg> to compile GLSL</flag>
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<flag name="snappy">Enable <pkg>app-arch/snappy</pkg> support. Required for e.g. Vidvox Hap encoder.</flag>
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<flag name="sndio">Enable support for the <pkg>media-sound/sndio</pkg> backend</flag>
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<flag name="soc">Apply additional patches for efficient playback on some SoCs (e.g. ARM, RISC-V).</flag>
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<flag name="srt">Enable support for Secure Reliable Transport (SRT) via <pkg>net-libs/srt</pkg></flag>
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<flag name="ssh">Enable SSH/sftp support via <pkg>net-libs/libssh</pkg>.</flag>
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<flag name="svt-av1">Enables AV1 encoding support via <pkg>media-libs/svt-av1</pkg>.</flag>
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<flag name="truetype">Enables drawtext filter via <pkg>media-libs/freetype</pkg> and <pkg>media-libs/harfbuzz</pkg>.</flag>
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<flag name="twolame">Enables MP2 encoding via <pkg>media-sound/twolame</pkg> as an alternative to the internal encoder.</flag>
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<flag name="vidstab">Enables video stabilization filter using vid.stab library (<pkg>media-libs/vidstab</pkg>).</flag>
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<flag name="vmaf">Enables Netflix's perceptual video quality assessment filter using the library (<pkg>media-libs/libvmaf</pkg>).</flag>
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<flag name="vpx">Enables VP8 and VP9 codec support using libvpx: Decoding does not require this to be enabled but libvpx can also be used for decoding; encoding requires this useflag to be enabled though.</flag>
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<flag name="x265">Enables HEVC encoding with <pkg>media-libs/x265</pkg>.</flag>
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<flag name="zeromq">Enables <pkg>net-libs/zeromq</pkg> support with the zmq/azmq filters.</flag>
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<flag name="zimg">Enables <pkg>media-libs/zimg</pkg> based scale filter.</flag>
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<flag name="zvbi">Enables <pkg>media-libs/zvbi</pkg> based teletext decoder.</flag>
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</use>
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<slots>
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<slot name="0">For building against. This is the only slot that provides
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headers and command line tools. Binary compatibility slots come and go
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as required, so always pin dependencies to this slot when appropriate.</slot>
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</slots>
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<upstream>
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<remote-id type="github">FFmpeg/FFmpeg</remote-id>
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<remote-id type="cpe">cpe:/a:ffmpeg:ffmpeg</remote-id>
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</upstream>
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</pkgmetadata>
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