示例#1
0
        public OutputPackage ConvertToFLV(string inputPath)
        {
            VideoFile vf = null;

            try
            {
                vf = new VideoFile(inputPath);
            }
            catch (Exception ex)
            {
                throw ex;
            }

            OutputPackage oo = ConvertToFLV(vf);

            return(oo);
        }
示例#2
0
        public bool ExtractAudio(string inputPath)
        {
            VideoFile input = null;

            try
            {
                input = new VideoFile(inputPath);
            }
            catch (Exception ex)
            {
                throw ex;
            }

            if (!input.infoGathered)
            {
                GetVideoInfo(input);
            }

            OutputPackage ou = new OutputPackage();


            String filename = System.Guid.NewGuid().ToString() + ".wav";

            String finalpath = System.IO.Path.Combine(this.WorkingPath, filename);

            String Params = string.Format("-i {0} {1}", input.Path, finalpath);
            String output = RunProcess(Params);

            bool returnVal = false;

            if (File.Exists(finalpath))
            {
                returnVal = true;
            }
            else
            {
                returnVal = false;
            }

            return(returnVal);
        }
示例#3
0
        public OutputPackage ConvertToFLV(VideoFile input)
        {
            if (!input.infoGathered)
            {
                GetVideoInfo(input);
            }
            OutputPackage ou = new OutputPackage();

            //set up the parameters for getting a previewimage
            string filename = System.Guid.NewGuid().ToString() + ".jpg";
            int    secs;

            //divide the duration in 3 to get a preview image in the middle of the clip
            //instead of a black image from the beginning.
            secs = (int)Math.Round(TimeSpan.FromTicks(input.Duration.Ticks / 3).TotalSeconds, 0);

            string finalpath = System.IO.Path.Combine(this.WorkingPath, filename);
            string Params    = string.Format("-i {0} {1} -vcodec mjpeg -ss {2} -vframes 1 -an -f rawvideo", input.Path, finalpath, secs);
            string output    = RunProcess(Params);

            ou.RawOutput = output;

            if (File.Exists(finalpath))
            {
                ou.PreviewImage = LoadImageFromFile(finalpath);
                try
                {
                    //File.Delete(finalpath);
                }
                catch (Exception) { }
            }
            else
            { //try running again at frame 1 to get something
                Params = string.Format("-i {0} {1} -vcodec mjpeg -ss {2} -vframes 1 -an -f rawvideo", input.Path, finalpath, 1);
                output = RunProcess(Params);

                ou.RawOutput = output;

                if (File.Exists(finalpath))
                {
                    ou.PreviewImage = LoadImageFromFile(finalpath);
                    try
                    {
                        //File.Delete(finalpath);
                    }
                    catch (Exception) { }
                }
            }

            filename = System.Guid.NewGuid().ToString() + ".flv";

            finalpath = System.IO.Path.Combine(this.WorkingPath, filename);

            Params = string.Format("-i {0} -y -ar 22050 -ab 64 -f flv {1}", input.Path, finalpath);
            output = RunProcess(Params);

            if (File.Exists(finalpath))
            {
                ou.VideoStream = LoadMemoryStreamFromFile(finalpath);
                ou.Success     = true;
                try
                {
                    //File.Delete(finalpath);
                }
                catch (Exception) { }
            }
            else
            {
                ou.Success = false;
            }
            return(ou);
        }
示例#4
0
        public void GetVideoInfo(VideoFile input)
        {
            //set up the parameters for video info
            string Params = string.Format("-i {0}", input.Path);
            string output = RunProcess(Params);

            input.RawInfo = output;

            //get duration
            Regex re = new Regex("[D|d]uration:.((\\d|:|\\.)*)");
            Match m  = re.Match(input.RawInfo);

            if (m.Success)
            {
                string   duration   = m.Groups[1].Value;
                string[] timepieces = duration.Split(new char[] { ':', '.' });
                if (timepieces.Length == 4)
                {
                    input.Duration = new TimeSpan(0, Convert.ToInt16(timepieces[0]), Convert.ToInt16(timepieces[1]), Convert.ToInt16(timepieces[2]), Convert.ToInt16(timepieces[3]));
                }
            }

            //get audio bit rate
            re = new Regex("[B|b]itrate:.((\\d|:)*)");
            m  = re.Match(input.RawInfo);
            double kb = 0.0;

            if (m.Success)
            {
                Double.TryParse(m.Groups[1].Value, out kb);
            }
            input.BitRate = kb;

            //get the audio format
            re = new Regex("[A|a]udio:.*");
            m  = re.Match(input.RawInfo);
            if (m.Success)
            {
                input.AudioFormat = m.Value;
            }

            //get the video format
            re = new Regex("[V|v]ideo:.*");
            m  = re.Match(input.RawInfo);
            if (m.Success)
            {
                input.VideoFormat = m.Value;
            }

            //get the video format
            re = new Regex("(\\d{2,3})x(\\d{2,3})");
            m  = re.Match(input.RawInfo);
            if (m.Success)
            {
                int width = 0; int height = 0;
                int.TryParse(m.Groups[1].Value, out width);
                int.TryParse(m.Groups[2].Value, out height);
                input.Width  = width;
                input.Height = height;
            }
            input.infoGathered = true;
        }