public FFmpegCommandLineResult <MemoryStream> GetFrameStreamForVideoFile(string fileName, TimeSpan frameTime)
{
//ffmpeg -v quiet -ss 00:00:01.000 -i "filename" -an -frames:v 1 -f image2 pipe:
//
var args = new CommandLineArgumentsBuilder();
args.AppendArguments("-v", "quiet", "-ss");
args.AppendArgumentFormat(@"{0:hh\:mm\:ss\.fff}", frameTime);
args.AppendArgument("-i");
args.AppendArgumentInDoubleQuotes(fileName);
args.AppendArguments("-an", "-frames:v 1", "-f image2", "pipe:");
var psi = StdioUtils.CreateBaseStartInfo(_app);
psi.Arguments = args.ToString();
var process = new Process
{
StartInfo = psi
};
process.Start();
var memoryStream = StdioUtils.ReadProcessStandardOutput(process);
string errorText = process.StandardError.ReadToEnd();
var ret = new FFmpegCommandLineResult <MemoryStream>(memoryStream, errorText);
return(ret);
}
public FFmpegCommandLineResult <byte[]> GetFrameDataForVideoFile(string fileName, TimeSpan frameTime)
{
var tmp = GetFrameStreamForVideoFile(fileName, frameTime);
var ret = new FFmpegCommandLineResult <byte[]>((tmp.Result != null) ? tmp.Result.ToArray() : null, tmp.ErrorText);
return(ret);
}