Details
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Bug
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Resolution: Unresolved
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P3: Somewhat important
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None
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6.9
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Linux/Wayland,
macOS
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Multimedia wk 5-6, Multimedia wk 7-8, Multimedia, weeks 9-10, Multimedia, weeks 11-12, Multimedia, weeks 13-14, Multimedia, weeks 15-16
Description
trying to link the ffmpeg plugin statically gives a lot of undefined symbols for the ffmpeg backend:
"_av_buffer_create", referenced from: QFFmpeg::VideoEncoder::processOne() in libffmpegmediaplugin.a[46](qffmpegvideoencoder.cpp.o) allocHWFrame(AVBufferRef*, __CVBuffer* const&) in libffmpegmediaplugin.a[54](qavfsamplebufferdelegate.mm.o) "_av_buffer_ref", referenced from: QFFmpeg::CodecContext::create(AVStream*, AVFormatContext*, QFFmpeg::CodecContext::VideoCodecCreationPolicy) in libffmpegmediaplugin.a[37](qffmpegcodeccontext.cpp.o) QFFmpeg::VideoFrameEncoder::initCodecContext() in libffmpegmediaplugin.a[48](qffmpegvideoframeencoder.cpp.o) QFFmpeg::VideoFrameEncoder::initCodecContext() in libffmpegmediaplugin.a[48](qffmpegvideoframeencoder.cpp.o) allocHWFrame(AVBufferRef*, __CVBuffer* const&) in libffmpegmediaplugin.a[54](qavfsamplebufferdelegate.mm.o) [...]
https://codereview.qt-project.org/c/qt/qtmultimedia/+/613823 contains a reproducer which fails to build (at least on macos and linux)