334 lines
12 KiB
Plaintext
334 lines
12 KiB
Plaintext
function VideoPlayer(id)
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' Get video controls and UI
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video = CreateObject("roSGNode", "JFVideo")
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video.id = id
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video = VideoContent(video)
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if video = invalid
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return invalid
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end if
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jellyfin_blue = "#00a4dcFF"
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video.retrievingBar.filledBarBlendColor = jellyfin_blue
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video.bufferingBar.filledBarBlendColor = jellyfin_blue
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video.trickPlayBar.filledBarBlendColor = jellyfin_blue
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return video
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end function
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function VideoContent(video) as object
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' Get video stream
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video.content = createObject("RoSGNode", "ContentNode")
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params = {}
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meta = ItemMetaData(video.id)
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video.content.title = meta.Name
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' If there is a last playback positon, ask user if they want to resume
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position = meta.json.UserData.PlaybackPositionTicks
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if position > 0 then
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dialogResult = startPlaybackOver(position)
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'Dialog returns -1 when back pressed, 0 for resume, and 1 for start over
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if dialogResult = -1 then
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'User pressed back, return invalid and don't load video
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return invalid
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else if dialogResult = 1 then
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'Start Over selected, change position to 0
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position = 0
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end if
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end if
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video.content.PlayStart = int(position/10000000)
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playbackInfo = ItemPostPlaybackInfo(video.id, position)
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if playbackInfo = invalid then
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return invalid
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end if
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video.PlaySessionId = playbackInfo.PlaySessionId
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if meta.live then
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video.content.live = true
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video.content.StreamFormat = "hls"
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'Original MediaSource seems to be a placeholder and real stream data is avaiable
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'after POSTing to PlaybackInfo
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json = meta.json
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json.AddReplace("MediaSources", playbackInfo.MediaSources)
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json.AddReplace("MediaStreams", playbackInfo.MediaSources[0].MediaStreams)
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meta.json = json
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end if
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container = getContainerType(meta)
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video.container = container
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transcodeParams = getTranscodeParameters(meta)
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transcodeParams.append({"PlaySessionId": video.PlaySessionId})
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if meta.live then
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_livestream_params = {
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"MediaSourceId": playbackInfo.MediaSources[0].Id,
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"LiveStreamId": playbackInfo.MediaSources[0].LiveStreamId,
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"MinSegments": 2 'This is a guess about initial buffer size, segments are 3s each
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}
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params.append(_livestream_params)
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transcodeParams.append(_livestream_params)
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end if
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subtitles = sortSubtitles(meta.id,meta.json.MediaStreams)
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video.Subtitles = subtitles["all"]
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video.content.SubtitleTracks = subtitles["text"]
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'TODO: allow user selection of subtitle track before playback initiated, for now set to first track
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if video.Subtitles.count() then
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video.SelectedSubtitle = 0
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else
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video.SelectedSubtitle = -1
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end if
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if video.SelectedSubtitle <> -1 and displaySubtitlesByUserConfig(video.Subtitles[video.SelectedSubtitle], meta.json.MediaStreams[1]) then
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if video.Subtitles[0].IsTextSubtitleStream then
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video.subtitleTrack = video.availableSubtitleTracks[video.Subtitles[0].TextIndex].TrackName
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video.suppressCaptions = false
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else
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video.suppressCaptions = true
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'Watch to see if system overlay opened/closed to change transcoding if caption mode changed
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m.device.EnableAppFocusEvent(True)
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video.captionMode = video.globalCaptionMode
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if video.globalCaptionMode = "On" or (video.globalCaptionMode = "When mute" and m.mute = true) then
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'Only transcode if subtitles are turned on
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transcodeParams.append({"SubtitleStreamIndex" : video.Subtitles[0].index })
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end if
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end if
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else
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video.suppressCaptions = true
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video.SelectedSubtitle = -1
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end if
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video.directPlaySupported = directPlaySupported(meta)
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video.decodeAudioSupported = decodeAudioSupported(meta)
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video.transcodeParams = transcodeParams
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if video.directPlaySupported and video.decodeAudioSupported and transcodeParams.SubtitleStreamIndex = invalid then
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params.append({
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"Static": "true",
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"Container": container
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"PlaySessionId": video.PlaySessionId
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})
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video.content.url = buildURL(Substitute("Videos/{0}/stream", video.id), params)
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video.content.streamformat = container
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video.content.switchingStrategy = ""
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video.isTranscode = False
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else
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video.content.url = buildURL(Substitute("Videos/{0}/master.m3u8", video.id), transcodeParams)
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video.isTranscoded = true
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end if
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video.content = authorize_request(video.content)
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' todo - audioFormat is read only
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video.content.audioFormat = getAudioFormat(meta)
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video.content.setCertificatesFile("common:/certs/ca-bundle.crt")
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return video
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end function
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function getTranscodeParameters(meta as object)
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if decodeAudioSupported(meta) and meta.json.MediaStreams[1] <> invalid and meta.json.MediaStreams[1].Type = "Audio" then
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audioCodec = meta.json.MediaStreams[1].codec
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audioChannels = meta.json.MediaStreams[1].channels
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else
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audioCodec = "aac"
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audioChannels = 2
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' If 5.1 Audio Output is connected then allow transcoding to 5.1
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di = CreateObject("roDeviceInfo")
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if di.GetAudioOutputChannel() = "5.1 surround" and di.CanDecodeAudio({ Codec: "aac", ChCnt: 6 }).result then
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audioChannels = 6
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end if
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end if
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return {
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"VideoCodec": "h264",
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"AudioCodec": audioCodec,
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"MaxAudioChannels": audioChannels,
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"MediaSourceId": meta.id,
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"SegmentContainer": "ts",
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"MinSegments": 1,
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"BreakOnNonKeyFrames": "True",
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"h264-profile": "high,main,baseline,constrainedbaseline",
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"RequireAvc": "false",
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}
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end function
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'Checks available subtitle tracks and puts subtitles in forced, default, and non-default/forced but preferred language at the top
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function sortSubtitles(id as string, MediaStreams)
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tracks = { "forced": [], "default": [], "normal": [] }
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'Too many args for using substitute
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dashedid = id.left(8) + "-" + id.mid(8,4) + "-" + id.mid(12,4) + "-" + id.mid(16,4) + "-" + id.right(12)
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prefered_lang = m.user.Configuration.SubtitleLanguagePreference
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for each stream in MediaStreams
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if stream.type = "Subtitle" then
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'Documentation lists that srt, ttml, and dfxp can be sideloaded but only srt was working in my testing,
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'forcing srt for all text subtitles
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url = Substitute("{0}/Videos/{1}/{2}/Subtitles/{3}/0/", get_url(), dashedid, id, stream.index.tostr())
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url = url + Substitute("Stream.js?api_key={0}&format=srt", get_setting("active_user"))
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stream = {
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"Track": { "Language" : stream.language, "Description": stream.displaytitle , "TrackName": url },
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"IsTextSubtitleStream": stream.IsTextSubtitleStream,
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"Index": stream.index,
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"TextIndex": -1,
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"IsDefault": stream.IsDefault,
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"IsForced": stream.IsForced
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}
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if stream.isForced then
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trackType = "forced"
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else if stream.IsDefault then
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trackType = "default"
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else
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trackType = "normal"
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end if
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if prefered_lang <> "" and prefered_lang = stream.Track.Language then
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tracks[trackType].unshift(stream)
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else
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tracks[trackType].push(stream)
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end if
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end if
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end for
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tracks["default"].append(tracks["normal"])
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tracks["forced"].append(tracks["default"])
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textTracks = []
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for i = 0 to tracks["forced"].count() - 1
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if tracks["forced"][i].IsTextSubtitleStream then tracks["forced"][i].TextIndex = textTracks.count()
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textTracks.push(tracks["forced"][i].Track)
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end for
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return { "all" : tracks["forced"], "text": textTracks }
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end function
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'Opens dialog asking user if they want to resume video or start playback over
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function startPlayBackOver(time as LongInteger) as integer
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return option_dialog([ "Resume playing at " + ticksToHuman(time) + ".", "Start over from the beginning." ])
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end function
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function directPlaySupported(meta as object) as boolean
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devinfo = CreateObject("roDeviceInfo")
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if meta.json.MediaSources[0] <> invalid and meta.json.MediaSources[0].SupportsDirectPlay = false then
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return false
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end if
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streamInfo = { Codec: meta.json.MediaStreams[0].codec }
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if meta.json.MediaStreams[0].Profile <> invalid and meta.json.MediaStreams[0].Profile.len() > 0 then
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streamInfo.Profile = LCase(meta.json.MediaStreams[0].Profile)
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end if
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if meta.json.MediaSources[0].container <> invalid and meta.json.MediaSources[0].container.len() > 0 then
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streamInfo.Container = meta.json.MediaSources[0].container
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end if
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return devinfo.CanDecodeVideo(streamInfo).result
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end function
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function decodeAudioSupported(meta as object) as boolean
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'Check for missing audio and allow playing
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if meta.json.MediaStreams[1] = invalid or meta.json.MediaStreams[1].Type <> "Audio" then return true
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devinfo = CreateObject("roDeviceInfo")
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codec = meta.json.MediaStreams[1].codec
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streamInfo = { Codec: codec, ChCnt: meta.json.MediaStreams[1].channels }
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'Check for Passthrough
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audioDecoders = devinfo.GetAudioDecodeInfo()
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'DTS
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if (codec = "dts" or codec = "dca") and audioDecoders.doesexist("dts") then
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return true
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end if
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'DD
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if codec = "ac3" and audioDecoders.doesexist("ac3") then
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return true
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end if
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'DD+
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if codec = "eac3" and audioDecoders.doesexist("DD+") then
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return true
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end if
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'Otherwise check Roku can decode stream and channels
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canDecode = devinfo.CanDecodeVideo(streamInfo)
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return canDecode.result
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end function
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function getContainerType(meta as object) as string
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' Determine the file type of the video file source
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print type(meta)
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if meta.json.mediaSources = invalid then return ""
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container = meta.json.mediaSources[0].container
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if container = invalid
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container = ""
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else if container = "m4v" or container = "mov"
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container = "mp4"
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end if
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return container
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end function
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function getAudioFormat(meta as object) as string
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' Determine the codec of the audio file source
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if meta.json.mediaSources = invalid then return ""
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audioInfo = getAudioInfo(meta)
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if audioInfo.count() = 0 then return ""
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return audioInfo[0].codec
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end function
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function getAudioInfo(meta as object) as object
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' Return audio metadata for a given stream
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results = []
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for each source in meta.json.mediaSources[0].mediaStreams
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if source["type"] = "Audio"
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results.push(source)
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end if
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end for
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return results
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end function
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function ReportPlayback(video, state = "update" as string)
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params = {
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"PlaySessionId": video.PlaySessionId,
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"PositionTicks": str(int(video.position)) + "0000000",
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"IsPaused": (video.state = "paused"),
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}
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if video.content.live then
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params.append({
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"MediaSourceId": video.transcodeParams.MediaSourceId,
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"LiveStreamId": video.transcodeParams.LiveStreamId
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})
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end if
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PlaystateUpdate(video.id, state, params)
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end function
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function StopPlayback()
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video = m.scene.focusedchild
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video.control = "stop"
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m.device.EnableAppFocusEvent(False)
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video.findNode("playbackTimer").control = "stop"
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video.visible = "false"
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if video.status = "finished" then MarkItemWatched(video.id)
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ReportPlayback(video, "stop")
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RemoveCurrentGroup()
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end function
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function displaySubtitlesByUserConfig(subtitleTrack, audioTrack)
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subtitleMode = m.user.Configuration.SubtitleMode
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audioLanguagePreference = m.user.Configuration.AudioLanguagePreference
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subtitleLanguagePreference = m.user.Configuration.SubtitleLanguagePreference
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if subtitleMode = "Default"
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return (subtitleTrack.isForced or subtitleTrack.isDefault)
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else if subtitleMode = "Smart"
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return (audioLanguagePreference <> "" and audioTrack.Language <> invalid and subtitleLanguagePreference <> "" and subtitleTrack.Track.Language <> invalid and subtitleLanguagePreference = subtitleTrack.Track.Language and audioLanguagePreference <> audioTrack.Language)
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else if subtitleMode = "OnlyForced"
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return subtitleTrack.IsForced
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else if subtitleMode = "Always"
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return true
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else if subtitleMode = "None"
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return false
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else
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return false
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end if
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end function
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