jf-roku/source/VideoPlayer.brs
2020-02-21 20:49:22 -05:00

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function VideoPlayer(id)
' Get video controls and UI
video = CreateObject("roSGNode", "JFVideo")
video.id = id
video = VideoContent(video)
jellyfin_blue = "#00a4dcFF"
video.retrievingBar.filledBarBlendColor = jellyfin_blue
video.bufferingBar.filledBarBlendColor = jellyfin_blue
video.trickPlayBar.filledBarBlendColor = jellyfin_blue
return video
end function
function VideoContent(video) as object
' Get video stream
video.content = createObject("RoSGNode", "ContentNode")
meta = ItemMetaData(video.id)
video.content.title = meta.Name
container = getContainerType(meta)
' If there is a last playback positon, ask user if they want to resume
position = meta.json.UserData.PlaybackPositionTicks
if position > 0 and startPlaybackOver(position) then
position = 0
end if
video.content.BookmarkPosition = int(position/10000000)
video.PlaySessionId = ItemGetSession(video.id, position)
if directPlaySupported(meta) and decodeAudioSupported(meta) then
video.content.url = buildURL(Substitute("Videos/{0}/stream", video.id), {
"PlaySessionId": video.PlaySessionId
Static: "true",
Container: container
})
video.content.streamformat = container
video.content.switchingStrategy = ""
else
if decodeAudioSupported(meta) then
audioCodec = meta.json.MediaStreams[1].codec
audioChannels = meta.json.MediaStreams[1].channels
else
audioCodec = "aac"
audioChannels = 2
end if
video.content.url = buildURL(Substitute("Videos/{0}/master.m3u8", video.id), {
"PlaySessionId": video.PlaySessionId
"VideoCodec": "h264",
"AudioCodec": audioCodec,
"MaxAudioChannels": audioChannels,
"MediaSourceId": video.id,
"SegmentContainer": "ts",
"MinSegments": 1,
"BreakOnNonKeyFrames": "True",
"h264-profile": "high,main,baseline,constrainedbaseline",
"RequireAvc": "false",
})
end if
video.content = authorize_request(video.content)
' todo - audioFormat is read only
video.content.audioFormat = getAudioFormat(meta)
video.content.setCertificatesFile("common:/certs/ca-bundle.crt")
return video
end function
'Opens dialog asking user if they want to resume video or start playback over
function startPlayBackOver(time as LongInteger) as boolean
return option_dialog([ "Resume playing at " + ticksToHuman(time) + ".", "Start over from the begining." ])
end function
function directPlaySupported(meta as object) as boolean
devinfo = CreateObject("roDeviceInfo")
return devinfo.CanDecodeVideo({ Codec: meta.json.MediaStreams[0].codec }).result
end function
function decodeAudioSupported(meta as object) as boolean
devinfo = CreateObject("roDeviceInfo")
return devinfo.CanDecodeAudio({ Codec: meta.json.MediaStreams[1].codec, ChCnt: meta.json.MediaStreams[1].channels }).result
end function
function getContainerType(meta as object) as string
' Determine the file type of the video file source
print type(meta)
if meta.json.mediaSources = invalid then return ""
container = meta.json.mediaSources[0].container
if container = invalid
container = ""
else if container = "m4v" or container = "mov"
container = "mp4"
end if
return container
end function
function getAudioFormat(meta as object) as string
' Determine the codec of the audio file source
if meta.json.mediaSources = invalid then return ""
audioInfo = getAudioInfo(meta)
if audioInfo.count() = 0 then return ""
return audioInfo[0].codec
end function
function getAudioInfo(meta as object) as object
' Return audio metadata for a given stream
results = []
for each source in meta.json.mediaSources[0].mediaStreams
if source["type"] = "Audio"
results.push(source)
end if
end for
return results
end function
function ReportPlayback(video, state = "update" as string)
params = {
"PlaySessionId": video.PlaySessionId,
"PositionTicks": str(int(video.position)) + "0000000",
"IsPaused": (video.state = "paused"),
}
PlaystateUpdate(video.id, state, params)
end function
function StopPlayback()
video = m.scene.focusedchild
video.findNode("playbackTimer").control = "stop"
video.control = "stop"
video.visible = "false"
if video.status = "finished" then MarkItemWatched(video.id)
ReportPlayback(video, "stop")
end function