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  1. Qt
  2. QTBUG-115052

/usr/bin/ld: cannot find -llibavformat.a when linking static Qt with FFmpeg

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Details

    • Bug
    • Resolution: Duplicate
    • P2: Important
    • None
    • 6.5.1
    • Multimedia
    • Ubuntu 20.04.6 LTS
    • Linux/X11

    Description

      Following on from https://bugreports.qt.io/browse/QTBUG-111460 I have compiled a static version of Qt 6.5.1 with FFmpeg (see attached Python build script). When I try to build this project https://github.com/martinburchell/qml-camera-example/ with this Qt, I get the error:

      /usr/bin/ld: cannot find -llibavformat.a

      It looks like the LIBS section of the Makefile (attached) is generated incorrectly.

      Is https://bugreports.qt.io/browse/QTBUG-107462 related?

      Attachments

        1. build.py
          2 kB
        2. find_ffmpeg.patch
          2 kB
        3. find-ffmpeg.patch
          1 kB
        4. find-ffmpeg-2.patch
          2 kB
        5. Makefile
          153 kB

        Issue Links

          duplicates

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-136676 Linking against static FFmpeg that is built with OpenSSL support fails

          • P3: Somewhat important - Should be fixed, but doesn't affect the release in any way.
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          Activity

            People

              crmaurei Cristian Maureira-Fredes
              martinburchell Martin Burchell
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              5 Start watching this issue

              Dates

                Created:
                Updated:
                Resolved:

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