Transcoding LiveTV

[madas]

Hello,

I was hoping to spend some time trying to find a working version of FFMPEG and the appropriate ARGS so that LiveTV streaming will work from the HDHomerun.

I am using VLC to send this command

http://ServerIP:8866/transcode?channel=7...itrate=900

I see the transcode starting (or trying to) but obviously FFMPEG is failing. I was hoping to find out the exact command that NextPVR is using (with the args populated) so I can play around with it manually. The log doesn't show this (but I think it used to?)

Any ideas?

Thanks

M

2015-06-13 13:38:22.040 [DEBUG][20] StartStream(9905:HGHD, LIVE&D:\Media\NPVR\live-HGHD-6780-1001.ts) allocated handle: 2424833
2015-06-13 13:38:22.040 [DEBUG][20] Handle: 250001
2015-06-13 13:38:22.040 [DEBUG][20] StreamNative@9 (storing stream handle: 2424833)
2015-06-13 13:38:22.040 [DEBUG][20] StreamNative@10 (with close monitoring...)
2015-06-13 13:38:23.077 [DEBUG][20] Using 'NPVR TS Reader2'
2015-06-13 13:38:23.083 [DEBUG][20] transcode@1
2015-06-13 13:38:23.083 [DEBUG][20] LIVE&D:\Media\NPVR\live-HGHD-6780-1001.ts
2015-06-13 13:38:23.083 [DEBUG][20] transcode@2
2015-06-13 13:38:23.099 [DEBUG][20] transcode@3
2015-06-13 13:38:23.108 [DEBUG][20] transcode@3.1
2015-06-13 13:38:23.108 [DEBUG][20] transcode@3.2


2015-06-13 13:38:24.520 [DEBUG][20] transcode@3.3
2015-06-13 13:38:24.586 [DEBUG][20] Failed to load TS mux filter
2015-06-13 13:38:24.593 [DEBUG][20] Unexpected error transcoding stream: System.IO.FileNotFoundException: Could not find file 'D:\Media\NPVR\transcoded.ts'.
File name: 'D:\Media\NPVR\transcoded.ts'
at System.IO.__Error.WinIOError(Int32 errorCode, String maybeFullPath)
at System.IO.FileStream.Init(String path, FileMode mode, FileAccess access, Int32 rights, Boolean useRights, FileShare share, Int32 bufferSize, FileOptions options, SECURITY_ATTRIBUTES secAttrs, String msgPath, Boolean bFromProxy, Boolean useLongPath, Boolean checkHost)
at System.IO.FileStream..ctor(String path, FileMode mode, FileAccess access, FileShare share)
at System.IO.File.Open(String path, FileMode mode, FileAccess access, FileShare share)
at NShared.Streaming.TranscodedStream.WorkerThread()

[davisyou]

I have the same problem with DVB-T LiveTV streaming. I modified config.xml with the following value:
<AllowRemoteAPI>true</AllowRemoteAPI>
<AllowRemoteTranscode>true</AllowRemoteTranscode>
<AllowRemoteStreaming>true</AllowRemoteStreaming>
<TranscodeExe>.\other\ffmpeg.exe</TranscodeExe>

When VLC played with http://192.168.0.25:8866/live?channel=917, LiveTV can play successfully.

When VLC played with http://192.168.0.25:8866/transcode?chann...trate=900k, LiveTV can not be played.

PS.I have tried the previous version NPVRSetup_3_3_8.exe. It can do the Transcoding DVB-T LiveTV streaming without any problem.

web.log showed the message.

2015-06-14 11:34:12.197 [DEBUG][25] Got Web Request (192.168.0.112): /transcode channel=916
2015-06-14 11:34:12.353 [DEBUG][23] Range: bytes=0-
2015-06-14 11:34:12.353 [DEBUG][23] StreamNative@8 (E:\UPNP\TV\live-916TV10-1500-1001.ts)
2015-06-14 11:34:12.353 [DEBUG][23] about to start stream...
2015-06-14 11:34:19.931 [DEBUG][23] StartStream(7163:916 TV10, LIVE&E:\UPNP\TV\live-916TV10-1500-1001.ts) allocated handle: 1310721
2015-06-14 11:34:19.931 [DEBUG][23] Handle: 140001
2015-06-14 11:34:19.931 [DEBUG][23] StreamNative@9 (storing stream handle: 1310721)
2015-06-14 11:34:19.931 [DEBUG][23] StreamNative@10 (with close monitoring...)
2015-06-14 11:34:21.150 [DEBUG][23] Using 'NPVR TS Reader2'
2015-06-14 11:34:21.158 [DEBUG][23] transcode@1
2015-06-14 11:34:21.158 [DEBUG][23] LIVE&E:\UPNP\TV\live-916TV10-1500-1001.ts
2015-06-14 11:34:21.158 [DEBUG][23] transcode@2
2015-06-14 11:34:21.197 [DEBUG][23] transcode@3
2015-06-14 11:34:21.236 [DEBUG][23] transcode@3.1
2015-06-14 11:34:21.236 [DEBUG][23] transcode@3.2
2015-06-14 11:34:23.291 [DEBUG][23] transcode@3.3
2015-06-14 11:34:23.314 [DEBUG][23] Failed to load TS mux filter
2015-06-14 11:34:23.338 [DEBUG][23] Unexpected error transcoding stream: System.IO.FileNotFoundException: Could not find file 'E:\UPNP\TV\transcoded.ts'.
File name: 'E:\UPNP\TV\transcoded.ts'
at System.IO.__Error.WinIOError(Int32 errorCode, String maybeFullPath)
at System.IO.FileStream.Init(String path, FileMode mode, FileAccess access, Int32 rights, Boolean useRights, FileShare share, Int32 bufferSize, FileOptions options, SECURITY_ATTRIBUTES secAttrs, String msgPath, Boolean bFromProxy, Boolean useLongPath, Boolean checkHost)
at System.IO.FileStream..ctor(String path, FileMode mode, FileAccess access, FileShare share)
at System.IO.File.Open(String path, FileMode mode, FileAccess access, FileShare share)
at NShared.Streaming.TranscodedStream.WorkerThread()
2015-06-14 11:34:23.338 [DEBUG][23] Graph stopping...
2015-06-14 11:34:23.338 [DEBUG][23] Graph reports state 'Stopped'
2015-06-14 11:34:23.338 [DEBUG][23] Graph stopped
2015-06-14 11:34:26.048 [DEBUG][29] ********** Checking VLC Heartbeat Dictionary
2015-06-14 11:34:26.048 [DEBUG][29] +++++No entries in VLC Heartbeat Dictionary.
2015-06-14 11:34:26.986 [DEBUG][26] Loading FanArt from: C:\Users\Public\NPVR\Media\Shows
2015-06-14 11:34:26.986 [DEBUG][26] FanArt Dictionary Count: 0
2015-06-14 11:34:26.986 [DEBUG][26] Clearing Dictionary
2015-06-14 11:34:26.986 [DEBUG][26] FanArt Dictionary Count: 0
2015-06-14 11:34:26.986 [DEBUG][26] FanArt loaded from directory.... start time: 2015/6/14 上午 11:34:26 end time: 2015/6/14 上午 11:34:26 total elapsed seconds: 0.0
2015-06-14 11:34:26.986 [DEBUG][26] FanArt Dictionary Count: 0
2015-06-14 11:34:26.986 [DEBUG][26] Folders processed: 0
2015-06-14 11:34:26.986 [DEBUG][26] Fanart files processed: 0
2015-06-14 11:34:26.986 [DEBUG][26] Total files processed: 1
2015-06-14 11:34:56.048 [DEBUG][26] ********** Checking VLC Heartbeat Dictionary
2015-06-14 11:34:56.048 [DEBUG][26] +++++No entries in VLC Heartbeat Dictionary.
2015-06-14 11:35:26.048 [DEBUG][29] ********** Checking VLC Heartbeat Dictionary
2015-06-14 11:35:26.048 [DEBUG][29] +++++No entries in VLC Heartbeat Dictionary.

[sub]

Sorry guys, this /transcode url was only ever experimental. It never got to the point where I was happy to support it officially.

[madas]

ah - so you removed it completely now? anyway to add it back so we can at least hack around with it a bit?

[sub]

No, I haven't intentionally removed it. You could see if this patch helps. Backup your original file first though - I'm not sure this version is compatible with rest of the binaries.

[madas]

Sub,

That did it - thanks. I see NPVR at least trying to launch FFMPEG again.

Will this patch go into a future build?

Thanks

M

[sub]

Yes

[madas]

Everything works again as before - thank you. I have noticed that any channel with a sub-channel doesn't work. For example

http://ServerIP:8866/transcode?channel=2...itrate=900

I can only tune to channels that have just a number. Anything with a dot will fail. I know the subchannels where added fairly recently to NPVR, perhaps the transcode script needs to be updated for subchannels also?

[sub]

This patch will hopefully help. It fixes the only obvious problem I can see.

[madas]

That fixed it - Thanks!