VideoService.cs 7.8 KB

123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219
  1. using MediaBrowser.Common.IO;
  2. using MediaBrowser.Common.Net;
  3. using MediaBrowser.Controller.Channels;
  4. using MediaBrowser.Controller.Configuration;
  5. using MediaBrowser.Controller.Dlna;
  6. using MediaBrowser.Controller.Drawing;
  7. using MediaBrowser.Controller.Library;
  8. using MediaBrowser.Controller.LiveTv;
  9. using MediaBrowser.Controller.MediaEncoding;
  10. using MediaBrowser.Model.IO;
  11. using ServiceStack;
  12. using System;
  13. using System.IO;
  14. using System.Threading;
  15. namespace MediaBrowser.Api.Playback.Progressive
  16. {
  17. /// <summary>
  18. /// Class GetAudioStream
  19. /// </summary>
  20. [Route("/Videos/{Id}/stream.ts", "GET")]
  21. [Route("/Videos/{Id}/stream.webm", "GET")]
  22. [Route("/Videos/{Id}/stream.asf", "GET")]
  23. [Route("/Videos/{Id}/stream.wmv", "GET")]
  24. [Route("/Videos/{Id}/stream.ogv", "GET")]
  25. [Route("/Videos/{Id}/stream.mp4", "GET")]
  26. [Route("/Videos/{Id}/stream.m4v", "GET")]
  27. [Route("/Videos/{Id}/stream.mkv", "GET")]
  28. [Route("/Videos/{Id}/stream.mpeg", "GET")]
  29. [Route("/Videos/{Id}/stream.mpg", "GET")]
  30. [Route("/Videos/{Id}/stream.avi", "GET")]
  31. [Route("/Videos/{Id}/stream.m2ts", "GET")]
  32. [Route("/Videos/{Id}/stream.3gp", "GET")]
  33. [Route("/Videos/{Id}/stream.wmv", "GET")]
  34. [Route("/Videos/{Id}/stream.wtv", "GET")]
  35. [Route("/Videos/{Id}/stream", "GET")]
  36. [Route("/Videos/{Id}/stream.ts", "HEAD")]
  37. [Route("/Videos/{Id}/stream.webm", "HEAD")]
  38. [Route("/Videos/{Id}/stream.asf", "HEAD")]
  39. [Route("/Videos/{Id}/stream.wmv", "HEAD")]
  40. [Route("/Videos/{Id}/stream.ogv", "HEAD")]
  41. [Route("/Videos/{Id}/stream.mp4", "HEAD")]
  42. [Route("/Videos/{Id}/stream.m4v", "HEAD")]
  43. [Route("/Videos/{Id}/stream.mkv", "HEAD")]
  44. [Route("/Videos/{Id}/stream.mpeg", "HEAD")]
  45. [Route("/Videos/{Id}/stream.mpg", "HEAD")]
  46. [Route("/Videos/{Id}/stream.avi", "HEAD")]
  47. [Route("/Videos/{Id}/stream.3gp", "HEAD")]
  48. [Route("/Videos/{Id}/stream.wmv", "HEAD")]
  49. [Route("/Videos/{Id}/stream.wtv", "HEAD")]
  50. [Route("/Videos/{Id}/stream.m2ts", "HEAD")]
  51. [Route("/Videos/{Id}/stream", "HEAD")]
  52. [Api(Description = "Gets a video stream")]
  53. public class GetVideoStream : VideoStreamRequest
  54. {
  55. }
  56. /// <summary>
  57. /// Class VideoService
  58. /// </summary>
  59. public class VideoService : BaseProgressiveStreamingService
  60. {
  61. public VideoService(IServerConfigurationManager serverConfig, IUserManager userManager, ILibraryManager libraryManager, IIsoManager isoManager, IMediaEncoder mediaEncoder, IFileSystem fileSystem, ILiveTvManager liveTvManager, IDlnaManager dlnaManager, IChannelManager channelManager, ISubtitleEncoder subtitleEncoder, IImageProcessor imageProcessor, IHttpClient httpClient) : base(serverConfig, userManager, libraryManager, isoManager, mediaEncoder, fileSystem, liveTvManager, dlnaManager, channelManager, subtitleEncoder, imageProcessor, httpClient)
  62. {
  63. }
  64. /// <summary>
  65. /// Gets the specified request.
  66. /// </summary>
  67. /// <param name="request">The request.</param>
  68. /// <returns>System.Object.</returns>
  69. public object Get(GetVideoStream request)
  70. {
  71. return ProcessRequest(request, false);
  72. }
  73. /// <summary>
  74. /// Heads the specified request.
  75. /// </summary>
  76. /// <param name="request">The request.</param>
  77. /// <returns>System.Object.</returns>
  78. public object Head(GetVideoStream request)
  79. {
  80. return ProcessRequest(request, true);
  81. }
  82. /// <summary>
  83. /// Gets the command line arguments.
  84. /// </summary>
  85. /// <param name="outputPath">The output path.</param>
  86. /// <param name="state">The state.</param>
  87. /// <param name="isEncoding">if set to <c>true</c> [is encoding].</param>
  88. /// <returns>System.String.</returns>
  89. protected override string GetCommandLineArguments(string outputPath, StreamState state, bool isEncoding)
  90. {
  91. // Get the output codec name
  92. var videoCodec = state.OutputVideoCodec;
  93. var format = string.Empty;
  94. var keyFrame = string.Empty;
  95. if (string.Equals(Path.GetExtension(outputPath), ".mp4", StringComparison.OrdinalIgnoreCase))
  96. {
  97. format = " -f mp4 -movflags frag_keyframe+empty_moov";
  98. }
  99. var threads = GetNumberOfThreads(state, string.Equals(videoCodec, "libvpx", StringComparison.OrdinalIgnoreCase));
  100. var inputModifier = GetInputModifier(state);
  101. return string.Format("{0} -i {1}{2} {3} {4} -map_metadata -1 -threads {5} {6}{7} -y \"{8}\"",
  102. inputModifier,
  103. GetInputArgument(state),
  104. keyFrame,
  105. GetMapArgs(state),
  106. GetVideoArguments(state, videoCodec),
  107. threads,
  108. GetAudioArguments(state),
  109. format,
  110. outputPath
  111. ).Trim();
  112. }
  113. /// <summary>
  114. /// Gets video arguments to pass to ffmpeg
  115. /// </summary>
  116. /// <param name="state">The state.</param>
  117. /// <param name="codec">The video codec.</param>
  118. /// <returns>System.String.</returns>
  119. private string GetVideoArguments(StreamState state, string codec)
  120. {
  121. var args = "-vcodec " + codec;
  122. if (state.EnableMpegtsM2TsMode)
  123. {
  124. args += " -mpegts_m2ts_mode 1";
  125. }
  126. // See if we can save come cpu cycles by avoiding encoding
  127. if (codec.Equals("copy", StringComparison.OrdinalIgnoreCase))
  128. {
  129. // TODO: Switch to -bsf dump_extra ?
  130. return state.VideoStream != null && IsH264(state.VideoStream) ? args + " -bsf h264_mp4toannexb" : args;
  131. }
  132. var keyFrameArg = string.Format(" -force_key_frames expr:gte(t,n_forced*{0})",
  133. 5.ToString(UsCulture));
  134. args += keyFrameArg;
  135. var hasGraphicalSubs = state.SubtitleStream != null && !state.SubtitleStream.IsTextSubtitleStream;
  136. // Add resolution params, if specified
  137. if (!hasGraphicalSubs)
  138. {
  139. args += GetOutputSizeParam(state, codec, CancellationToken.None);
  140. }
  141. var qualityParam = GetVideoQualityParam(state, codec, false);
  142. if (!string.IsNullOrEmpty(qualityParam))
  143. {
  144. args += " " + qualityParam.Trim();
  145. }
  146. // This is for internal graphical subs
  147. if (hasGraphicalSubs)
  148. {
  149. args += GetGraphicalSubtitleParam(state, codec);
  150. }
  151. return args;
  152. }
  153. /// <summary>
  154. /// Gets audio arguments to pass to ffmpeg
  155. /// </summary>
  156. /// <param name="state">The state.</param>
  157. /// <returns>System.String.</returns>
  158. private string GetAudioArguments(StreamState state)
  159. {
  160. // If the video doesn't have an audio stream, return a default.
  161. if (state.AudioStream == null && state.VideoStream != null)
  162. {
  163. return string.Empty;
  164. }
  165. // Get the output codec name
  166. var codec = state.OutputAudioCodec;
  167. if (codec.Equals("copy", StringComparison.OrdinalIgnoreCase))
  168. {
  169. return "-acodec copy";
  170. }
  171. var args = "-acodec " + codec;
  172. // Add the number of audio channels
  173. var channels = state.OutputAudioChannels;
  174. if (channels.HasValue)
  175. {
  176. args += " -ac " + channels.Value;
  177. }
  178. var bitrate = state.OutputAudioBitrate;
  179. if (bitrate.HasValue)
  180. {
  181. args += " -ab " + bitrate.Value.ToString(UsCulture);
  182. }
  183. args += " " + GetAudioFilterParam(state, false);
  184. return args;
  185. }
  186. }
  187. }