public void SetFFmpegPath()
{
// 1) Custom path stored in config/encoding xml file under tag <EncoderAppPath> takes precedence
var ffmpegPath = _configurationManager.GetEncodingOptions().EncoderAppPath;
if (string.IsNullOrEmpty(ffmpegPath))
{
// 2) Check if the --ffmpeg CLI switch has been given
ffmpegPath = _startupOptionFFmpegPath;
if (string.IsNullOrEmpty(ffmpegPath))
{
// 3) Check "ffmpeg"
ffmpegPath = "ffmpeg";
}
}
if (!ValidatePath(ffmpegPath))
{
_ffmpegPath = null;
}
// Write the FFmpeg path to the config/encoding.xml file as <EncoderAppPathDisplay> so it appears in UI
var options = _configurationManager.GetEncodingOptions();
options.EncoderAppPathDisplay = _ffmpegPath ?? string.Empty;
_configurationManager.SaveConfiguration("encoding", options);
// Only if mpeg path is set, try and set path to probe
if (_ffmpegPath != null)
{
// Determine a probe path from the mpeg path
_ffprobePath = Regex.Replace(_ffmpegPath, @"[^\/\\]+?(\.[^\/\\\n.]+)?$", @"ffprobe$1");
// Interrogate to understand what coders are supported
var validator = new EncoderValidator(_logger, _ffmpegPath);
SetAvailableDecoders(validator.GetDecoders());
SetAvailableEncoders(validator.GetEncoders());
SetAvailableFilters(validator.GetFilters());
SetAvailableFiltersWithOption(validator.GetFiltersWithOption());
SetAvailableHwaccels(validator.GetHwaccels());
SetMediaEncoderVersion(validator);
_threads = EncodingHelper.GetNumberOfThreads(null, options, null);
// Check the Vaapi device vendor
if (OperatingSystem.IsLinux() &&
SupportsHwaccel("vaapi") &&
!string.IsNullOrEmpty(options.VaapiDevice) &&
string.Equals(options.HardwareAccelerationType, "vaapi", StringComparison.OrdinalIgnoreCase))
{
_isVaapiDeviceAmd = validator.CheckVaapiDeviceByDriverName("Mesa Gallium driver", options.VaapiDevice);
_isVaapiDeviceInteliHD = validator.CheckVaapiDeviceByDriverName("Intel iHD driver", options.VaapiDevice);
_isVaapiDeviceInteli965 = validator.CheckVaapiDeviceByDriverName("Intel i965 driver", options.VaapiDevice);
if (_isVaapiDeviceAmd)
{
_logger.LogInformation("VAAPI device {RenderNodePath} is AMD GPU", options.VaapiDevice);
}
else if (_isVaapiDeviceInteliHD)
{
_logger.LogInformation("VAAPI device {RenderNodePath} is Intel GPU (iHD)", options.VaapiDevice);
}
else if (_isVaapiDeviceInteli965)
{
_logger.LogInformation("VAAPI device {RenderNodePath} is Intel GPU (i965)", options.VaapiDevice);
}
}
}
_logger.LogInformation("FFmpeg: {FfmpegPath}", _ffmpegPath ?? string.Empty);
}
