Files
FileFlowsPlugins/VideoNodes/FfmpegBuilderNodes/Video/FFmpegBuilderVideoBitrateEncode/FfmpegBuilderVideoBitrateEncode.cs
2024-05-07 15:11:24 +12:00

320 lines
13 KiB
C#

using System.Runtime.InteropServices;
using FileFlows.VideoNodes.FfmpegBuilderNodes.Models;
namespace FileFlows.VideoNodes.FfmpegBuilderNodes;
/// <summary>
/// Set a video codec encoding by bitrate for a video stream based on users settings
/// </summary>
public partial class FfmpegBuilderVideoBitrateEncode:VideoEncodeBase
{
/// <summary>
/// The number of outputs for this flow element
/// </summary>
public override int Outputs => 1;
/// <summary>
/// The Help URL for this flow element
/// </summary>
public override string HelpUrl => "https://fileflows.com/docs/plugins/video-nodes/ffmpeg-builder/bitrate-encode";
/// <summary>
/// Gets or sets the codec used to encode
/// </summary>
[DefaultValue(CODEC_H265)]
[Select(nameof(CodecOptions), 1)]
public string Codec { get; set; } = string.Empty;
/// <summary>
/// Gets or sets the encoder to use
/// </summary>
[Select(nameof(Encoders), 2)]
[ConditionEquals(nameof(Codec), "/av1/", inverse: true)]
public string Encoder { get; set; } = string.Empty;
/// <summary>
/// Gets or sets the bitrate to use in Kbps
/// </summary>
[NumberInt(3)]
[DefaultValue(5_000)]
public int Bitrate { get; set; }
/// <summary>
/// Executes the node
/// </summary>
/// <param name="args">The node arguments</param>
/// <returns>the output return</returns>
public override int Execute(NodeParameters args)
{
var stream = Model.VideoStreams.First(x => x.Deleted == false);
stream.EncodingParameters.Clear();
// remove anything that may have been added before
stream.Filter = stream.Filter.Where(x => x?.StartsWith("scale_qsv") != true).ToList();
string encoder = Environment.GetEnvironmentVariable("HW_OFF") == "1" ||
(
args.Variables?.TryGetValue("HW_OFF", out object? oHwOff) == true && (oHwOff as bool? == true || oHwOff?.ToString() == "1")
) ? ENCODER_CPU : this.Encoder;
args.Logger?.ILog("Bitrate: " + Bitrate);
args.Logger?.ILog("Codec: " + Codec);
if (Codec == CODEC_H264)
{
var encodingParameters = H264(args, false, encoder, Bitrate).ToArray();
args.Logger?.ILog("Encoding Parameters: " +
string.Join(" ", encodingParameters.Select(x => x.Contains(" ") ? "\"" + x + "\"" : x)));
stream.EncodingParameters.AddRange(encodingParameters);
stream.Codec = CODEC_H264;
}
else if (Codec is CODEC_H265 or CODEC_H265_10BIT or CODEC_H265_8BIT)
{
bool tenBit = (Codec == CODEC_H265_10BIT || stream.Stream.Is10Bit) && (Codec != CODEC_H265_8BIT);
bool forceBitSetting = Codec is CODEC_H265_10BIT or CODEC_H265_8BIT;
args.Logger?.ILog("10 Bit: " + tenBit);
var encodingParameters = H265(stream, args, tenBit, Bitrate, encoder, stream.Stream.FramesPerSecond, forceBitSetting: forceBitSetting).ToArray();
args.Logger?.ILog("Encoding Parameters: " +
string.Join(" ", encodingParameters.Select(x => x.Contains(" ") ? "\"" + x + "\"" : x)));
stream.EncodingParameters.AddRange(encodingParameters);
stream.Codec = "hevc";
}
else if (Codec is CODEC_AV1 or CODEC_AV1_10BIT)
{
bool tenBit = Codec == CODEC_AV1_10BIT || stream.Stream.Is10Bit;
args.Logger?.ILog("10 Bit: " + tenBit);
var encodingParameters = AV1(args, tenBit, Bitrate, encoder).ToArray();
args.Logger?.ILog("Encoding Parameters: " +
string.Join(" ", encodingParameters.Select(x => x.Contains(" ") ? "\"" + x + "\"" : x)));
stream.EncodingParameters.AddRange(encodingParameters);
stream.Codec = "av1";
}
else if (Codec == CODEC_VP9)
{
var encodingParameters = VP9(args, Bitrate, encoder).ToArray();
args.Logger?.ILog("Encoding Parameters: " +
string.Join(" ", encodingParameters.Select(x => x.Contains(" ") ? "\"" + x + "\"" : x)));
stream.EncodingParameters.AddRange(encodingParameters);
stream.Codec = "vp9";
}
else
{
args.Logger?.ILog("Unknown codec: " + Codec);
return 2;
}
stream.ForcedChange = true;
return 1;
}
/// <summary>
/// Adjust the parameters to use a constant bitrate
/// </summary>
/// <param name="args">the node parameters</param>
/// <param name="parameters">the parameters to alter</param>
/// <returns>the adjusted parmaters</returns>
private string[] AdjustForBitrate(NodeParameters args, string[] parameters)
{
var toRemove = new [] { "-rc", "-qp", "-preset", "-spatial-aq", "-g", "-global_quality:v" };
int index = Array.FindIndex(parameters, p => toRemove.Contains(p));
var modified = new List<string>();
for (int i = 0; i < parameters.Length - 1; i++)
{
if (toRemove.Contains(parameters[i]))
{
i++;
continue;
}
modified.Add(parameters[i]);
}
modified.Insert(index, "-b:v:{index}");
modified.Insert(index + 1, Bitrate + "k");
return modified.ToArray();
}
internal static IEnumerable<string> GetEncodingParameters(NodeParameters args, string codec, int bitrate, string encoder, float fps)
{
if (codec == CODEC_H264)
return H264(args, false, encoder, bitrate).Select(x => x.Replace("{index}", "0"));
if (codec == CODEC_H265 || codec == CODEC_H265_10BIT)
return H265(null, args, codec == CODEC_H265_10BIT, bitrate, encoder, fps).Select(x => x.Replace("{index}", "0"));
if(codec == CODEC_AV1)
return AV1(args, codec == CODEC_AV1_10BIT, bitrate, encoder).Select(x => x.Replace("{index}", "0"));
throw new Exception("Unsupported codec: " + codec);
}
private static readonly bool IsMac = RuntimeInformation.IsOSPlatform(OSPlatform.OSX);
private static IEnumerable<string> H264(NodeParameters args, bool tenBit, string encoder, int bitrate)
{
List<string> parameters = new List<string>();
string[]? bit10Filters = null;
string[]? non10BitFilters = null;
if (encoder == ENCODER_CPU)
parameters.AddRange(H26x_CPU(false, bitrate, out bit10Filters));
else if(IsMac && encoder == ENCODER_MAC)
parameters.AddRange(H26x_VideoToolbox(false, bitrate));
else if (encoder == ENCODER_NVIDIA)
parameters.AddRange(H26x_Nvidia(false, bitrate, out non10BitFilters));
else if (encoder == ENCODER_QSV)
parameters.AddRange(H26x_Qsv(false, bitrate, 0));
else if (encoder == ENCODER_AMF)
parameters.AddRange(H26x_Amd(false, bitrate));
else if (encoder == ENCODER_VAAPI)
parameters.AddRange(H26x_Vaapi(false, bitrate));
else if(IsMac && CanUseHardwareEncoding.CanProcess_VideoToolbox_H264(args))
parameters.AddRange(H26x_VideoToolbox(false, bitrate));
else if (CanUseHardwareEncoding.CanProcess_Nvidia_H264(args))
parameters.AddRange(H26x_Nvidia(false,bitrate, out non10BitFilters));
else if (CanUseHardwareEncoding.CanProcess_Qsv_H264(args))
{
parameters.AddRange(H26x_Qsv(false, bitrate, 0));
encoder = ENCODER_QSV;
}
else if (CanUseHardwareEncoding.CanProcess_Amd_H264(args))
parameters.AddRange(H26x_Amd(false, bitrate));
else if (CanUseHardwareEncoding.CanProcess_Vaapi_H264(args))
parameters.AddRange(H26x_Vaapi(false, bitrate));
else
parameters.AddRange(H26x_CPU(false, bitrate, out bit10Filters));
if (tenBit)
{
parameters.AddRange(bit10Filters ?? new string[]
{ "-pix_fmt:v:{index}", "p010le", "-profile:v:{index}", "main10" });
}
return parameters;
}
private static IEnumerable<string> H265(FfmpegVideoStream stream, NodeParameters args, bool tenBit, int bitrate,
string encoder, float fps, bool forceBitSetting = false)
{
// hevc_qsv -load_plugin hevc_hw -pix_fmt p010le -profile:v main10 -global_quality 21 -g 24 -look_ahead 1 -look_ahead_depth 60
List<string> parameters = new List<string>();
string[]? bit10Filters = null;
string[]? non10BitFilters = null;
bool qsv = false;
if (encoder == ENCODER_CPU)
parameters.AddRange(H26x_CPU(true, bitrate, out bit10Filters));
else if (IsMac && encoder == ENCODER_MAC)
parameters.AddRange(H26x_VideoToolbox(true, bitrate));
else if (encoder == ENCODER_NVIDIA)
parameters.AddRange(H26x_Nvidia(true, bitrate, out non10BitFilters));
else if (encoder == ENCODER_QSV)
{
parameters.AddRange(H26x_Qsv(true, bitrate, fps));
qsv = true;
}
else if (encoder == ENCODER_AMF)
parameters.AddRange(H26x_Amd(true, bitrate));
else if (encoder == ENCODER_VAAPI)
parameters.AddRange(H26x_Vaapi(true, bitrate));
else if (IsMac && CanUseHardwareEncoding.CanProcess_VideoToolbox_Hevc(args))
parameters.AddRange(H26x_VideoToolbox(true, bitrate));
else if (CanUseHardwareEncoding.CanProcess_Nvidia_Hevc(args))
parameters.AddRange(H26x_Nvidia(true, bitrate, out non10BitFilters));
else if (CanUseHardwareEncoding.CanProcess_Qsv_Hevc(args))
{
parameters.AddRange(H26x_Qsv(true, bitrate, fps));
qsv = true;
}
else if (CanUseHardwareEncoding.CanProcess_Amd_Hevc(args))
parameters.AddRange(H26x_Amd(true, bitrate));
else if (CanUseHardwareEncoding.CanProcess_Vaapi_Hevc(args))
parameters.AddRange(H26x_Vaapi(true, bitrate));
else
parameters.AddRange(H26x_CPU(true, bitrate, out bit10Filters));
if (tenBit)
{
if (qsv)
{
parameters.AddRange(new []
{
"-profile:v:{index}", "main10", "-pix_fmt", "p010le" //, "-vf", "scale_qsv=format=p010le"
});
// if the stream is passed in, we add it to the filter
// if(stream != null)
// stream.Filter.Add("scale_qsv=format=p010le");
// else // if there is no stream, we specify the -vf directly, this is called by audio to video flow elements
// parameters.AddRange(new [] { "-vf", "scale_qsv=format=p010le" });
}
else
{
parameters.AddRange(bit10Filters ?? new []
{ "-pix_fmt:v:{index}", "p010le", "-profile:v:{index}", "main10" });
}
}
else if(non10BitFilters?.Any() == true)
parameters.AddRange(non10BitFilters);
else if (forceBitSetting)
{
parameters.AddRange(new[] { "-pix_fmt:v:{index}", "yuv420p" });
}
return parameters;
}
private static IEnumerable<string> AV1(NodeParameters args, bool tenBit, int bitrate, string encoder)
{
// hevc_qsv -load_plugin hevc_hw -pix_fmt p010le -profile:v main10 -global_quality 21 -g 24 -look_ahead 1 -look_ahead_depth 60
List<string> parameters = new List<string>();
if (encoder == ENCODER_CPU)
parameters.AddRange(AV1_CPU(bitrate));
else if(encoder == ENCODER_NVIDIA)
parameters.AddRange(AV1_Nvidia(bitrate));
else if(encoder == ENCODER_QSV)
parameters.AddRange(AV1_Qsv(bitrate));
else if(encoder == ENCODER_AMF)
parameters.AddRange(AV1_Amd(bitrate));
else if (CanUseHardwareEncoding.CanProcess_Nvidia_AV1(args))
parameters.AddRange(AV1_Nvidia(bitrate));
else if (CanUseHardwareEncoding.CanProcess_Qsv_AV1(args))
parameters.AddRange(AV1_Qsv(bitrate));
else if (CanUseHardwareEncoding.CanProcess_Amd_AV1(args))
parameters.AddRange(AV1_Amd(bitrate));
else
parameters.AddRange(AV1_CPU(bitrate));
if (tenBit)
{
bool qsv = parameters.Any(x => x.ToLowerInvariant().Contains("qsv"));
bool av1 = parameters.Any(x => x.ToLowerInvariant().Contains("av1"));
if(qsv && av1)
parameters.AddRange(new[] { "-pix_fmt", "p010le" });
else if(qsv)
parameters.AddRange(new[] { "-vf", "scale_qsv=format=p010le" });
else
parameters.AddRange(new[] { "-pix_fmt:v:{index}", "yuv420p10le" });
}
return parameters;
}
private static IEnumerable<string> VP9(NodeParameters args, int bitrate, string encoder)
{
List<string> parameters = new List<string>();
if (encoder == ENCODER_CPU)
parameters.AddRange(VP9_CPU(bitrate));
else if (encoder == ENCODER_QSV) // if can use hevc they can use vp9
parameters.AddRange(VP9_Qsv(bitrate));
else if (CanUseHardwareEncoding.CanProcess_Qsv_Hevc(args)) // if can use hevc they can use vp9
parameters.AddRange(VP9_Qsv(bitrate));
else
parameters.AddRange(VP9_CPU(bitrate));
return parameters;
}
}