public override void StartEncode(Stream output)
{
using (DSEncoder enc = new DSEncoder())
{
this.encoder = enc;
string source = parameters["source"];
if (source.StartsWith("desktop", StringComparison.OrdinalIgnoreCase))
{
//Zdroj je plocha PC
uint desktopFps = parameters.ContainsKey("desktopfps") ? uint.Parse(parameters["desktopfps"]) : 10;
bool captureWin = string.Equals(source, "desktop_window", StringComparison.OrdinalIgnoreCase);
enc.SetInput(InputType.Desktop(desktopFps, captureWin));
}
else if (string.Equals(source, "static", StringComparison.OrdinalIgnoreCase))
{
//Zdrojom je staticky obraz
using (MemoryStream ms = new MemoryStream())
using (System.Drawing.Bitmap bitmap = HelperClass.GetTextBitmap(LanguageResource.Loading + "...", 720, 576, 25))
{
bitmap.Save(ms, System.Drawing.Imaging.ImageFormat.Bmp);
enc.SetInput(InputType.Static(10, ms.ToArray()));
}
}
else if (source.StartsWith("webcam", StringComparison.OrdinalIgnoreCase))
{
//Zdroj je webkamera
string[] webcamParam = source.Split(new char[] { '_' }, 2, StringSplitOptions.RemoveEmptyEntries);
if (webcamParam.Length == 1)
{
enc.SetInput(InputType.Webcam(WebcamInput.GetVideoInputNames().FirstOrDefault(), WebcamInput.GetAudioInputNames().FirstOrDefault()));
}
else
{
enc.SetInput(InputType.Webcam(webcamParam[1], WebcamInput.GetAudioInputNames().FirstOrDefault()));
}
}
else
{
//Zdrj je subor, http link
bool reqSeeking = (parameters.ContainsKey("starttime") || parameters.ContainsKey("endtime")) &&
this.codec != DSCodec.MPEG2_PS && this.codec != DSCodec.MPEG2_TS &&
this.codec != DSCodec.MPEG2LAYER1_PS && this.codec != DSCodec.MPEG2LAYER1_TS;
//Nastavi sa preferovany demultiplexor podla guid, hodnoty su oddelene znakom |
IEnumerable <Guid> prefDsDemux = null;
if (parameters.ContainsKey("prefDsDemux"))
{
prefDsDemux = parameters["prefDsDemux"].Split(new char[] { '|' }, StringSplitOptions.RemoveEmptyEntries).Select(a => Guid.Parse(a));
}
enc.SetInput(source, reqSeeking, prefDsDemux);
}
uint setVideo = this.video.HasValue ? this.video.Value : 1;
uint setAudio = this.audio.HasValue ? this.audio.Value : 1;
//Integrovanie titulkov, ak nie je zadany nazov - automaticka detekcia
//Ak je zadany nazov - nastav prislusny subor
string subPath = null;
bool subtitles = parameters.ContainsKey("subtitles");
if (subtitles)
{
if (parameters["subtitles"] != string.Empty)
{
subPath = parameters["subtitles"];
}
}
//Nastavenie video a zvukovej stopy
uint actVideo = 1, actAudio = 1, actSubtitle = 1;
foreach (PinInfoItem item in enc.SourcePins)
{
if (item.MediaType == PinMediaType.Video)
{
//Ak sa jedna o stream a uzivatel nezadal index, nenastavuje sa IsSelected - necha sa povodne
if (item.IsStream && !this.video.HasValue)
{
continue;
}
if (actVideo == setVideo)
{
item.IsSelected = true;
}
else
{
item.IsSelected = false;
}
actVideo++;
}
else if (item.MediaType == PinMediaType.Audio)
{
//Ak sa jedna o stream a uzivatel nezadal index, nenastavuje sa IsSelected - necha sa povodne
if (item.IsStream && !this.audio.HasValue)
{
continue;
}
if (actAudio == setAudio)
{
item.IsSelected = true;
}
else
{
item.IsSelected = false;
}
actAudio++;
}
else if (item.MediaType == PinMediaType.Subtitle)
{
//Ak uzivatel nevyziadal titulky - nezapnu sa ani ked ide stream
string lang = ((PinSubtitleItem)item).LangName;
if (string.Equals(lang, subPath, StringComparison.OrdinalIgnoreCase) || actSubtitle.ToString() == subPath)
{
//Ak parameter zodpoveda nazvu jazyka alebo indexu nastavi sa IsSelected
//subPath sa nastavi na null - aby ho enkoder nepovazoval ze cestu k titulkom
subPath = null;
item.IsSelected = true;
}
else
{
item.IsSelected = false;
}
actSubtitle++;
}
else
{
item.IsSelected = false;
}
}
//Zistenie sirky a vysky, povodna hodnota ak nezadane
uint width = this.width.HasValue ? this.width.Value : 0;
uint height = this.height.HasValue ? this.height.Value : 0;
//Zistenie bitrate pre audio a vide, povodna hodnota ak nezadane
uint vidBitrate = this.vidBitrate.HasValue ? this.vidBitrate.Value : 0;
uint audBitrate = this.audBitrate.HasValue ? this.audBitrate.Value : 0;
//Zistenie kvality videa
uint quality = 50;
if (parameters.ContainsKey("quality"))
{
quality = uint.Parse(parameters["quality"]);
if (quality < 1 || quality > 100)
{
throw new HttpException(400, "Encode quality must be in range 1-100");
}
}
//Zistenie poctu snimok za sekundu
uint fps = 0;
if (parameters.ContainsKey("fps"))
{
fps = uint.Parse(parameters["fps"]);
}
//Zistenie ci zachovat pomer stran pri zmene rozlisenia
bool keepAspect = parameters.ContainsKey("keepaspect");
//Zistenie typu skenovania
ScanType?scanType = null;
if (parameters.ContainsKey("scan"))
{
if (parameters["scan"].Equals("i", StringComparison.OrdinalIgnoreCase))
{
scanType = ScanType.Interlaced;
}
else if (parameters["scan"].Equals("p", StringComparison.OrdinalIgnoreCase))
{
scanType = ScanType.Progressive;
}
}
//Nastavenie velkosti buffera (KByte) pre async stream - mozne iba pre non-seekable container
int outBufferSize = 0;
if (parameters.ContainsKey("obufsize"))
{
outBufferSize = int.Parse(parameters["obufsize"]);
if (outBufferSize < 1)
{
throw new HttpException(400, "Output buffer size must be non-negative");
}
outBufferSize *= 1024;
}
ContainerType container = null;
switch (this.codec)
{
case DSCodec.MPEG2_PS: container = ContainerType.MPEG2_PS(width, height, BitrateMode.CBR, vidBitrate * 1000, quality, fps,
scanType.HasValue ? scanType.Value : ScanType.Interlaced, subtitles, subPath, keepAspect, MpaLayer.Layer2, audBitrate * 1000);
break;
case DSCodec.MPEG2_TS: container = ContainerType.MPEG2_TS(width, height, BitrateMode.CBR, vidBitrate * 1000, quality, fps,
scanType.HasValue ? scanType.Value : ScanType.Interlaced, subtitles, subPath, keepAspect, MpaLayer.Layer2, audBitrate * 1000);
break;
case DSCodec.MPEG2LAYER1_PS: container = ContainerType.MPEG2_PS(width, height, BitrateMode.CBR, vidBitrate * 1000, quality, fps,
scanType.HasValue ? scanType.Value : ScanType.Interlaced, subtitles, subPath, keepAspect, MpaLayer.Layer1, audBitrate * 1000);
break;
case DSCodec.MPEG2LAYER1_TS: container = ContainerType.MPEG2_TS(width, height, BitrateMode.CBR, vidBitrate * 1000, quality, fps,
scanType.HasValue ? scanType.Value : ScanType.Interlaced, subtitles, subPath, keepAspect, MpaLayer.Layer1, audBitrate * 1000);
break;
case DSCodec.MPEG2_TS_H264: container = ContainerType.MPEG2_TS_H264(width, height, BitrateMode.CBR, vidBitrate * 1000, quality, fps,
subtitles, subPath, keepAspect, audBitrate * 1000);
break;
case DSCodec.HLS:
if (!parameters.ContainsKey("hlsPlaylistUrl") || !parameters.ContainsKey("hlsFileUrl") || !parameters.ContainsKey("hlsSegmentTime"))
{
throw new HttpException(400, "Missing 'hlsPlaylistUrl', 'hlsFileUrl' or 'hlsSegmentTime' parameter");
}
container = ContainerType.HLS(width, height, BitrateMode.CBR, vidBitrate * 1000, quality, fps, subtitles, subPath, keepAspect,
audBitrate * 1000, parameters["hlsPlaylistUrl"], parameters["hlsFileUrl"], uint.Parse(parameters["hlsSegmentTime"]));
outBufferSize = 0;
//HLS nepouzivat ako vystup stream
output = null;
break;
case DSCodec.WEBM: container = ContainerType.WEBM(width, height, BitrateMode.CBR, vidBitrate * 1000, quality, fps, subtitles,
subPath, keepAspect, audBitrate * 1000, false);
outBufferSize = 0;
break;
case DSCodec.WEBM_TS: container = ContainerType.WEBM(width, height, BitrateMode.CBR, vidBitrate * 1000, quality, fps, subtitles,
subPath, keepAspect, audBitrate * 1000, true);
break;
case DSCodec.WMV2: container = ContainerType.WMV(width, height, WMVideoSubtype.WMMEDIASUBTYPE_WMV2, vidBitrate * 1000, quality,
fps, subtitles, subPath, audBitrate * 1000);
break;
case DSCodec.WMV3: container = ContainerType.WMV(width, height, WMVideoSubtype.WMMEDIASUBTYPE_WMV3, vidBitrate * 1000, quality,
fps, subtitles, subPath, audBitrate * 1000);
break;
case DSCodec.AVI: container = ContainerType.AVI(width, height, BitrateMode.CBR, vidBitrate * 1000, quality, fps,
scanType.HasValue ? scanType.Value : ScanType.Progressive, subtitles, subPath, keepAspect, audBitrate * 1000);
outBufferSize = 0;
break;
case DSCodec.MP4: container = ContainerType.MP4(width, height, BitrateMode.CBR, vidBitrate * 1000, quality, fps, subtitles, subPath,
keepAspect, audBitrate * 1000, false);
outBufferSize = 0;
break;
case DSCodec.MP4_TS: container = ContainerType.MP4(width, height, BitrateMode.CBR, vidBitrate * 1000, quality, fps, subtitles, subPath,
keepAspect, audBitrate * 1000, true);
break;
case DSCodec.MP3: container = ContainerType.MP3(BitrateMode.CBR, audBitrate * 1000, quality, false);
outBufferSize = 0;
break;
case DSCodec.MP3_TS: container = ContainerType.MP3(BitrateMode.CBR, audBitrate * 1000, quality, true);
break;
case DSCodec.FLV: container = ContainerType.FLV(width, height, BitrateMode.CBR, vidBitrate * 1000, quality, fps, subtitles, subPath,
keepAspect, audBitrate * 1000, false);
outBufferSize = 0;
break;
case DSCodec.FLV_TS: container = ContainerType.FLV(width, height, BitrateMode.CBR, vidBitrate * 1000, quality, fps, subtitles, subPath,
keepAspect, audBitrate * 1000, true);
break;
case DSCodec.FLV_H264: container = ContainerType.FLV_H264(width, height, BitrateMode.CBR, vidBitrate * 1000, quality, fps, subtitles, subPath,
keepAspect, audBitrate * 1000, false);
outBufferSize = 0;
break;
case DSCodec.FLV_H264_TS: container = ContainerType.FLV_H264(width, height, BitrateMode.CBR, vidBitrate * 1000, quality, fps, subtitles, subPath,
keepAspect, audBitrate * 1000, true);
break;
}
//Nastavenie casu zaciatku a konca v milisekundach (v parametroch su sekundy)
long startTime = 0, endTime = 0;
if (parameters.ContainsKey("starttime"))
{
startTime = (long)(double.Parse(parameters["starttime"], System.Globalization.CultureInfo.InvariantCulture) * 1000);
}
if (parameters.ContainsKey("endtime"))
{
endTime = (long)(double.Parse(parameters["endtime"], System.Globalization.CultureInfo.InvariantCulture) * 1000);
}
if (this.progressChangeDel != null)
{
enc.ProgressChange += new EventHandler <ProgressChangeEventArgs>(enc_ProgressChange);
}
using (BufferedAsyncStream bufferedOutput = new BufferedAsyncStream(output, outBufferSize))
{
if (outBufferSize > 0)
{
bufferedOutput.Start();
output = bufferedOutput;
}
//Nastavenie vystupu
enc.SetOutput(output, container, startTime, endTime);
enc.StartEncode();
bufferedOutput.Stop();
}
}
}
