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made HLS 64k stream optional

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This commit is contained in:
Luke Pulverenti 2013-09-06 13:27:06 -04:00
parent 5c3fcaf049
commit 83dd13cc7c
3 changed files with 47 additions and 11 deletions
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42
MediaBrowser.Api/Playback/Hls/BaseHlsService.cs
View File

@ -123,7 +123,17 @@ namespace MediaBrowser.Api.Playback.Hls
var audioBitrate = GetAudioBitrateParam(state) ?? 0;
var videoBitrate = GetVideoBitrateParam(state) ?? 0;
var playlistText = GetMasterPlaylistFileText(playlist, videoBitrate + audioBitrate);
var appendBaselineStream = false;
var baselineStreamBitrate = 64000;
var hlsVideoRequest = state.VideoRequest as GetHlsVideoStream;
if (hlsVideoRequest != null)
{
appendBaselineStream = hlsVideoRequest.AppendBaselineStream;
baselineStreamBitrate = hlsVideoRequest.BaselineStreamAudioBitRate ?? baselineStreamBitrate;
}
var playlistText = GetMasterPlaylistFileText(playlist, videoBitrate + audioBitrate, appendBaselineStream, baselineStreamBitrate);
try
{
@ -135,7 +145,7 @@ namespace MediaBrowser.Api.Playback.Hls
}
}
private string GetMasterPlaylistFileText(string firstPlaylist, int bitrate)
private string GetMasterPlaylistFileText(string firstPlaylist, int bitrate, bool includeBaselineStream, int baselineStreamBitrate)
{
var builder = new StringBuilder();
@ -150,9 +160,12 @@ namespace MediaBrowser.Api.Playback.Hls
builder.AppendLine(playlistUrl);
// Low bitrate stream
builder.AppendLine("#EXT-X-STREAM-INF:PROGRAM-ID=1,BANDWIDTH=64000");
playlistUrl = "hls/" + Path.GetFileName(firstPlaylist).Replace(".m3u8", "-low/stream.m3u8");
builder.AppendLine(playlistUrl);
if (includeBaselineStream)
{
builder.AppendLine("#EXT-X-STREAM-INF:PROGRAM-ID=1,BANDWIDTH=" + baselineStreamBitrate.ToString(UsCulture));
playlistUrl = "hls/" + Path.GetFileName(firstPlaylist).Replace(".m3u8", "-low/stream.m3u8");
builder.AppendLine(playlistUrl);
}
return builder.ToString();
}
@ -246,15 +259,22 @@ namespace MediaBrowser.Api.Playback.Hls
outputPath
).Trim();
if (state.Item is Video)
var hlsVideoRequest = state.VideoRequest as GetHlsVideoStream;
if (hlsVideoRequest != null)
{
var lowBitratePath = Path.Combine(Path.GetDirectoryName(outputPath), Path.GetFileNameWithoutExtension(outputPath) + "-low.m3u8");
if (hlsVideoRequest.AppendBaselineStream && state.Item is Video)
{
var lowBitratePath = Path.Combine(Path.GetDirectoryName(outputPath), Path.GetFileNameWithoutExtension(outputPath) + "-low.m3u8");
var lowBitrateParams = string.Format(" -threads 0 -vn -codec:a:0 libmp3lame -ac 2 -ab 32000 -hls_time 10 -start_number 0 -hls_list_size 1440 \"{0}\"",
lowBitratePath,
state.AudioStream.Index);
var bitrate = hlsVideoRequest.BaselineStreamAudioBitRate ?? 64000;
args += " " + lowBitrateParams;
var lowBitrateParams = string.Format(" -threads 0 -vn -codec:a:0 libmp3lame -ac 2 -ab {1} -hls_time 10 -start_number 0 -hls_list_size 1440 \"{0}\"",
lowBitratePath,
bitrate / 2);
args += " " + lowBitrateParams;
}
}
return args;

4
MediaBrowser.Api/Playback/Hls/VideoHlsService.cs
View File

@ -16,7 +16,11 @@ namespace MediaBrowser.Api.Playback.Hls
[Api(Description = "Gets a video stream using HTTP live streaming.")]
public class GetHlsVideoStream : VideoStreamRequest
{
[ApiMember(Name = "BaselineStreamAudioBitRate", Description = "Optional. Specify the audio bitrate for the baseline stream.", IsRequired = false, DataType = "int", ParameterType = "query", Verb = "GET")]
public int? BaselineStreamAudioBitRate { get; set; }
[ApiMember(Name = "AppendBaselineStream", Description = "Optional. Whether or not to include a baseline audio-only stream in the master playlist.", IsRequired = false, DataType = "bool", ParameterType = "query", Verb = "GET")]
public bool AppendBaselineStream { get; set; }
}
/// <summary>

12
MediaBrowser.Model/Dto/StreamOptions.cs
View File

@ -77,6 +77,18 @@
/// </summary>
/// <value>The level.</value>
public string Level { get; set; }
/// <summary>
/// Gets or sets the baseline stream audio bit rate.
/// </summary>
/// <value>The baseline stream audio bit rate.</value>
public int? BaselineStreamAudioBitRate { get; set; }
/// <summary>
/// Gets or sets a value indicating whether [append baseline stream].
/// </summary>
/// <value><c>true</c> if [append baseline stream]; otherwise, <c>false</c>.</value>
public bool AppendBaselineStream { get; set; }
}
/// <summary>