public override string ToString()
{
StringBuilder sb = new StringBuilder();
sb.AppendLine("Codec name: " + CodecName);
sb.Append("Codec type: " + CodecType);
if (Bitrate != 0)
{
sb.Append("\nBit rate: " + BasicMediaFormatInfo.GetBitrateFormat(Bitrate));
}
if (!Double.IsNaN(FrameRate))
{
sb.Append("\nFrame rate: " + FrameRate.ToString("0.00") + " FPS");
}
if (Duration != 0)
{
sb.Append("\nDuration: " + BasicMediaFormatInfo.GetTimeFormat((int)Duration));
}
if (Title != "")
{
sb.Append("\nTitle: \"" + Title + "\"");
}
if (Language != "")
{
sb.Append("\nLanguage: \"" + Language + "\"");
}
return(sb.ToString());
}
public static EncoderResult Encoder(string inputFile, string outputPath)
{
BasicMediaFormatInfo info = new BasicMediaFormatInfo(inputFile);
int videoIndex = -1;
int audioIndex = -1;
for (int i = 0; i < info.MediaInfo.Length; i++)
{
if (info.MediaInfo[i].CodecType == "video")
{
videoIndex = i;
break;
}
}
for (int i = 0; i < info.MediaInfo.Length; i++)
{
if (info.MediaInfo[i].CodecType == "audio")
{
audioIndex = i;
break;
}
}
return(Encoder(inputFile, outputPath, info, videoIndex, audioIndex));
}
private static EncoderResult Encoder(string inputFile, string outputPath,
BasicMediaFormatInfo info, int videoIndex, int audioIndex)
{
EncoderResult encoderResult = new EncoderResult();
encoderResult.VideoInfo = null;
encoderResult.AudioInfo = null;
if (videoIndex != -1 && info.MediaInfo[videoIndex].CodecType == "video" &&
info.MediaInfo[videoIndex].CodecName != "mjpeg" &&
info.MediaInfo[videoIndex].CodecName != "png")
{
encoderResult.VideoInfo = new BasicVideoInfo((BasicVideoInfo)info.MediaInfo[videoIndex]);
}
if (audioIndex != -1 && info.MediaInfo[audioIndex].CodecType == "audio")
{
encoderResult.AudioInfo = new BasicAudioInfo((BasicAudioInfo)info.MediaInfo[audioIndex]);
}
encoderResult.Extension = null;
if (encoderResult.VideoInfo != null)
{
encoderResult.Extension = ".mp4";
}
else if (encoderResult.AudioInfo != null)
{
if (encoderResult.AudioInfo.CodecName == "vorbis" &&
encoderResult.AudioInfo.Channels <= 2)
{
encoderResult.Extension = ".ogg";
}
else
{
encoderResult.Extension = ".m4a";
}
}
else
{
throw new Exception("\"" + inputFile + "\" does not have multimedia content.");
}
StringBuilder config = new StringBuilder();
if (encoderResult.VideoInfo != null)
{
if (encoderResult.VideoInfo.Width * encoderResult.VideoInfo.Height > 1920 * 1080)
{
double scale = 1920.0 / encoderResult.VideoInfo.Width;
double heightScale = 1080.0 / encoderResult.VideoInfo.Height;
if (scale > heightScale)
{
scale = heightScale;
}
encoderResult.VideoInfo.Width = (int)(encoderResult.VideoInfo.Width * scale);
encoderResult.VideoInfo.Height = (int)(encoderResult.VideoInfo.Height * scale);
}
if (encoderResult.VideoInfo.Width * encoderResult.VideoInfo.Height > 1280 * 720 && encoderResult.VideoInfo.FrameRate > 30.0)
{
encoderResult.VideoInfo.FrameRate = 30.0;
}
if (encoderResult.VideoInfo.FrameRate > 60.0)
{
encoderResult.VideoInfo.FrameRate = 60.0;
}
if (encoderResult.VideoInfo.CodecName == "h264" &&
encoderResult.VideoInfo.Width == ((BasicVideoInfo)info.MediaInfo[videoIndex]).Width &&
encoderResult.VideoInfo.Height == ((BasicVideoInfo)info.MediaInfo[videoIndex]).Height &&
encoderResult.VideoInfo.FrameRate == ((BasicVideoInfo)info.MediaInfo[videoIndex]).FrameRate &&
encoderResult.VideoInfo.Level <= 4.2)
{
config.Append("-map 0:");
config.Append(videoIndex);
config.Append(" -c:v copy");
}
else
{
config.Append("-map 0:");
config.Append(videoIndex);
config.Append(" -c:v libx264 -preset fast -crf 25 -s ");
config.Append(encoderResult.VideoInfo.Width);
config.Append("x");
config.Append(encoderResult.VideoInfo.Height);
config.Append(" -r ");
config.Append(encoderResult.VideoInfo.FrameRate);
}
}
if (encoderResult.AudioInfo != null)
{
if (encoderResult.VideoInfo != null)
{
config.Append(" ");
}
if ((encoderResult.AudioInfo.CodecName == "aac" ||
encoderResult.AudioInfo.CodecName == "vorbis") &&
encoderResult.AudioInfo.Channels <= 2)
{
config.Append("-map 0:");
config.Append(audioIndex);
config.Append(" -c:a copy");
}
else
{
config.Append("-map 0:");
config.Append(audioIndex);
config.Append(" -c:a aac -ac 2");
}
}
if (info.Size > 4294967296)
{
int bitrate = 0;
double totalDuration = 0;
if (encoderResult.VideoInfo != null && encoderResult.AudioInfo == null)
{
bitrate = encoderResult.VideoInfo.Bitrate;
totalDuration = encoderResult.VideoInfo.Duration;
}
else if (encoderResult.VideoInfo == null && encoderResult.AudioInfo != null)
{
bitrate = encoderResult.AudioInfo.Bitrate;
totalDuration = encoderResult.AudioInfo.Duration;
}
else if (encoderResult.VideoInfo == null && encoderResult.AudioInfo == null)
{
bitrate = encoderResult.VideoInfo.Bitrate + encoderResult.AudioInfo.Bitrate;
totalDuration = encoderResult.VideoInfo.Duration;
}
if (bitrate == 0)
{
bitrate = info.Bitrate;
}
if (totalDuration == 0)
{
totalDuration = info.Duration;
}
double duration = 33822867456.0 / bitrate;
double start = 0.0;
int parts = (int)(totalDuration / duration);
if (totalDuration % duration != 0.0)
{
parts++;
}
encoderResult.Name = new string[parts];
for (int i = 0; i < parts; i++)
{
encoderResult.Name[i] = Path.GetFileNameWithoutExtension(inputFile) + " part " + (i + 1).ToString();
string output = Path.Combine(outputPath, MediaInjector.ValidFilename(encoderResult.Name[i]) + encoderResult.Extension);
string cut = "-ss " + start.ToString() + " -noaccurate_seek -t " + duration.ToString();
string arguments = cut + " -i \"" + inputFile + "\" " + config.ToString() + " \"" + output + "\"";
FFmpeg(arguments);
start += duration;
}
}
else
{
encoderResult.Name = new string[1];
encoderResult.Name[0] = Path.GetFileNameWithoutExtension(inputFile);
string output = Path.Combine(outputPath, MediaInjector.ValidFilename(encoderResult.Name[0]) + encoderResult.Extension);
string arguments = "-i \"" + inputFile + "\" " + config.ToString() + " \"" + output + "\"";
FFmpeg(arguments);
}
return(encoderResult);
}
