• Stefano Sabatini's avatar
    prefer avio_check() over url_exist() · 55815edc
    Stefano Sabatini authored
    The problem with url_exist() is that it tries to open a resource in
    RDONLY mode. If the file is a FIFO and there is already a reading
    client, the open() call will hang.
    
    By using avio_check() with access mode of 0, the second reading
    process will check if the file exists without attempting to open it,
    thus avoiding the lock.
    
    Fix issue #1663.
    Signed-off-by: default avatarAnton Khirnov <anton@khirnov.net>
    55815edc
ffmpeg.c 159 KB