private string GetCommandLineArgs(MediaSourceInfo mediaSource, string inputTempFile, string targetFile, TimeSpan duration)
{
string videoArgs;
if (EncodeVideo(mediaSource))
{
var maxBitrate = 25000000;
videoArgs = string.Format(
"-codec:v:0 libx264 -force_key_frames \"expr:gte(t,n_forced*5)\" {0} -pix_fmt yuv420p -preset superfast -crf 23 -b:v {1} -maxrate {1} -bufsize ({1}*2) -vsync -1 -profile:v high -level 41",
GetOutputSizeParam(),
maxBitrate.ToString(CultureInfo.InvariantCulture));
}
else
{
videoArgs = "-codec:v:0 copy";
}
var durationParam = " -t " + _mediaEncoder.GetTimeParameter(duration.Ticks);
var inputModifiers = "-fflags +genpts -async 1 -vsync -1";
var commandLineArgs = "-i \"{0}\"{5} {2} -map_metadata -1 -threads 0 {3}{4}{6} -y \"{1}\"";
long startTimeTicks = 0;
//if (mediaSource.DateLiveStreamOpened.HasValue)
//{
// var elapsed = DateTime.UtcNow - mediaSource.DateLiveStreamOpened.Value;
// elapsed -= TimeSpan.FromSeconds(10);
// if (elapsed.TotalSeconds >= 0)
// {
// startTimeTicks = elapsed.Ticks + startTimeTicks;
// }
//}
if (mediaSource.ReadAtNativeFramerate)
{
inputModifiers += " -re";
}
if (startTimeTicks > 0)
{
inputModifiers = "-ss " + _mediaEncoder.GetTimeParameter(startTimeTicks) + " " + inputModifiers;
}
var analyzeDurationSeconds = 5;
var analyzeDuration = " -analyzeduration " +
(analyzeDurationSeconds * 1000000).ToString(CultureInfo.InvariantCulture);
inputModifiers += analyzeDuration;
var subtitleArgs = CopySubtitles ? " -codec:s copy" : " -sn";
var outputParam = string.Equals(Path.GetExtension(targetFile), ".mp4", StringComparison.OrdinalIgnoreCase) ?
" -f mp4 -movflags frag_keyframe+empty_moov" :
string.Empty;
commandLineArgs = string.Format(commandLineArgs, inputTempFile, targetFile, videoArgs, GetAudioArgs(mediaSource), subtitleArgs, durationParam, outputParam);
return(inputModifiers + " " + commandLineArgs);
}
private string GetCommandLineArgs(MediaSourceInfo mediaSource, string inputTempFile, string targetFile, TimeSpan duration)
{
string videoArgs;
if (EncodeVideo(mediaSource))
{
var maxBitrate = 25000000;
videoArgs = string.Format(
"-codec:v:0 libx264 -force_key_frames \"expr:gte(t,n_forced*5)\" {0} -pix_fmt yuv420p -preset superfast -crf 23 -b:v {1} -maxrate {1} -bufsize ({1}*2) -vsync -1 -profile:v high -level 41",
GetOutputSizeParam(),
maxBitrate.ToString(CultureInfo.InvariantCulture));
}
else
{
videoArgs = "-codec:v:0 copy";
}
var durationParam = " -t " + _mediaEncoder.GetTimeParameter(duration.Ticks);
var commandLineArgs = "-fflags +genpts -async 1 -vsync -1 -re -i \"{0}\"{4} -sn {2} -map_metadata -1 -threads 0 {3} -y \"{1}\"";
if (mediaSource.ReadAtNativeFramerate)
{
commandLineArgs = "-re " + commandLineArgs;
}
commandLineArgs = string.Format(commandLineArgs, inputTempFile, targetFile, videoArgs, GetAudioArgs(mediaSource), durationParam);
return(commandLineArgs);
}
private string GetCommandLineArgs(MediaSourceInfo mediaSource, string inputTempFile, string targetFile, TimeSpan duration)
{
string videoArgs;
if (EncodeVideo(mediaSource))
{
var maxBitrate = 25000000;
videoArgs = string.Format(
"-codec:v:0 libx264 -force_key_frames \"expr:gte(t,n_forced*5)\" {0} -pix_fmt yuv420p -preset superfast -crf 23 -b:v {1} -maxrate {1} -bufsize ({1}*2) -vsync -1 -profile:v high -level 41",
GetOutputSizeParam(),
maxBitrate.ToString(CultureInfo.InvariantCulture));
}
else
{
videoArgs = "-codec:v:0 copy";
}
var durationParam = " -t " + _mediaEncoder.GetTimeParameter(duration.Ticks);
var inputModifiers = "-fflags +genpts -async 1 -vsync -1";
var commandLineArgs = "-i \"{0}\"{4} -sn {2} -map_metadata -1 -threads 0 {3} -y \"{1}\"";
long startTimeTicks = 0;
//if (mediaSource.DateLiveStreamOpened.HasValue)
//{
// var elapsed = DateTime.UtcNow - mediaSource.DateLiveStreamOpened.Value;
// elapsed -= TimeSpan.FromSeconds(10);
// if (elapsed.TotalSeconds >= 0)
// {
// startTimeTicks = elapsed.Ticks + startTimeTicks;
// }
//}
if (mediaSource.ReadAtNativeFramerate)
{
inputModifiers += " -re";
}
if (startTimeTicks > 0)
{
inputModifiers = "-ss " + _mediaEncoder.GetTimeParameter(startTimeTicks) + " " + inputModifiers;
}
commandLineArgs = string.Format(commandLineArgs, inputTempFile, targetFile, videoArgs, GetAudioArgs(mediaSource), durationParam);
return(inputModifiers + " " + commandLineArgs);
}
private string GetCommandLineArgs(MediaSourceInfo mediaSource, string inputTempFile, string targetFile, TimeSpan duration)
{
string videoArgs;
if (EncodeVideo(mediaSource))
{
var maxBitrate = 25000000;
videoArgs = string.Format(
"-codec:v:0 libx264 -force_key_frames \"expr:gte(t,n_forced*5)\" {0} -pix_fmt yuv420p -preset superfast -crf 23 -b:v {1} -maxrate {1} -bufsize ({1}*2) -vsync -1 -profile:v high -level 41",
GetOutputSizeParam(),
maxBitrate.ToString(CultureInfo.InvariantCulture));
}
else
{
videoArgs = "-codec:v:0 copy";
}
videoArgs += " -fflags +genpts";
var durationParam = " -t " + _mediaEncoder.GetTimeParameter(duration.Ticks);
var flags = new List <string>();
if (mediaSource.IgnoreDts)
{
flags.Add("+igndts");
}
if (mediaSource.IgnoreIndex)
{
flags.Add("+ignidx");
}
if (mediaSource.GenPtsInput)
{
flags.Add("+genpts");
}
var inputModifier = "-async 1 -vsync -1";
if (flags.Count > 0)
{
inputModifier += " -fflags " + string.Join("", flags.ToArray());
}
if (!string.IsNullOrWhiteSpace(GetEncodingOptions().HardwareAccelerationType))
{
inputModifier += " -hwaccel auto";
}
if (mediaSource.ReadAtNativeFramerate)
{
inputModifier += " -re";
}
if (mediaSource.RequiresLooping)
{
inputModifier += " -stream_loop -1";
}
var analyzeDurationSeconds = 5;
var analyzeDuration = " -analyzeduration " +
(analyzeDurationSeconds * 1000000).ToString(CultureInfo.InvariantCulture);
inputModifier += analyzeDuration;
var subtitleArgs = CopySubtitles ? " -codec:s copy" : " -sn";
//var outputParam = string.Equals(Path.GetExtension(targetFile), ".mp4", StringComparison.OrdinalIgnoreCase) ?
// " -f mp4 -movflags frag_keyframe+empty_moov" :
// string.Empty;
var outputParam = string.Empty;
var commandLineArgs = string.Format("-i \"{0}\"{5} {2} -map_metadata -1 -threads 0 {3}{4}{6} -y \"{1}\"",
inputTempFile,
targetFile,
videoArgs,
GetAudioArgs(mediaSource),
subtitleArgs,
durationParam,
outputParam);
return(inputModifier + " " + commandLineArgs);
}
