[rpihddevice] No video on some channels

arkoko · 17. Januar 2016

Hi,

I have setup VDR 2.2.0 on the raspberry Pi2 as client for my master VDR server (streamdev-client, rpihddevice).
Now I discovered that some DVB-C channels are without video.

Syslog for not working channel:

Code

Jan 17 23:10:00 akopi2 vdr: [2479] switching to channel 4 (ETV HD)
Jan 17 23:10:00 akopi2 vdr: [8380] ERROR (device.c,1767): Bad file descriptor
Jan 17 23:10:00 akopi2 vdr: [8380] device 2 TS buffer thread ended (pid=2479, tid=8380)
Jan 17 23:10:00 akopi2 vdr: [8379] buffer stats: 160928 (7%) used
Jan 17 23:10:00 akopi2 vdr: [8379] device 2 receiver thread ended (pid=2479, tid=8379)
Jan 17 23:10:01 akopi2 vdr: [8382] device 2 receiver thread started (pid=2479, tid=8382, prio=high)
Jan 17 23:10:01 akopi2 vdr: [8383] device 2 TS buffer thread started (pid=2479, tid=8383, prio=high)
Jan 17 23:10:01 akopi2 vdr: [8382] rpihddevice: set video codec to H264
Jan 17 23:10:01 akopi2 vdr: [2490] rpihddevice: new audio codec: 2ch MPEG
Jan 17 23:10:01 akopi2 vdr: [2490] rpihddevice: set local audio output format to 2ch PCM, 48.0kHz
Jan 17 23:10:11 akopi2 vdr: [8382] ERROR: TS packet not accepted in Transfer Mode
Jan 17 23:10:11 akopi2 vdr: [2490] rpihddevice: set local audio output format to 2ch PCM, 48.0kHz

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And working example of the same channel over DVB-T2:

Code

Jan 17 23:13:31 akopi2 vdr: [2479] switching to channel 187 (ETV HD)
Jan 17 23:13:31 akopi2 vdr: [8423] device 2 TS buffer thread ended (pid=2479, tid=8423)
Jan 17 23:13:31 akopi2 vdr: [8422] buffer stats: 285384 (13%) used
Jan 17 23:13:31 akopi2 vdr: [8422] device 2 receiver thread ended (pid=2479, tid=8422)
Jan 17 23:13:31 akopi2 vdr: [8434] device 2 receiver thread started (pid=2479, tid=8434, prio=high)
Jan 17 23:13:31 akopi2 vdr: [8435] device 2 TS buffer thread started (pid=2479, tid=8435, prio=high)
Jan 17 23:13:32 akopi2 vdr: [8434] rpihddevice: set video codec to H264
Jan 17 23:13:32 akopi2 vdr: [2490] rpihddevice: new audio codec: 2ch MPEG
Jan 17 23:13:32 akopi2 vdr: [2490] rpihddevice: set local audio output format to 2ch PCM, 48.0kHz
Jan 17 23:13:33 akopi2 vdr: [2489] rpihddevice: video stream started 1920x1080@50i PAR(1:1)
Jan 17 23:13:33 akopi2 vdr: [2489] rpihddevice: failed to set HDMI mode to 1280x720@50i

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Comparing saved streams with Mediainfo I can see 2 big differences:
-overall bitrate
-reframes: 4 on not working vs 3 on working channel

Bad:

Code

General
ID                                       : 32776 (0x8008)
Complete name                            : \\diskstation.lan\vdr\ETV\2016-01-16.20.05.1-0.rec\00001.ts
Format                                   : MPEG-TS
File size                                : 663 MiB
Duration                                 : 4mn 58s
Overall bit rate mode                    : Variable
Overall bit rate                         : 18.7 Mbps


Video
ID                                       : 101 (0x65)
Menu ID                                  : 132 (0x84)
Format                                   : AVC
Format/Info                              : Advanced Video Codec
Format profile                           : High@L4
Format settings, CABAC                   : Yes
Format settings, ReFrames                : 4 frames
Codec ID                                 : 27
Duration                                 : 4mn 57s
Bit rate                                 : 17.1 Mbps
Width                                    : 1 920 pixels
Height                                   : 1 080 pixels
Display aspect ratio                     : 16:9
Frame rate                               : 25.000 fps
Standard                                 : Component
Color space                              : YUV
Chroma subsampling                       : 4:2:0
Bit depth                                : 8 bits
Scan type                                : Interlaced
Scan type, store method                  : Separated fields
Scan order                               : Top Field First
Bits/(Pixel*Frame)                       : 0.330
Stream size                              : 607 MiB (92%)
Color range                              : Limited
Color primaries                          : BT.709
Transfer characteristics                 : BT.709
Matrix coefficients                      : BT.709

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OK:

Code

General
ID                                       : 32776 (0x8008)
Complete name                            : \\diskstation.lan\vdr\dvbt\2016-01-17.22.45.187-0.rec\00001.ts
Format                                   : MPEG-TS
File size                                : 177 MiB
Duration                                 : 2mn 56s
Overall bit rate mode                    : Variable
Overall bit rate                         : 8 421 Kbps


Video
ID                                       : 591 (0x24F)
Menu ID                                  : 132 (0x84)
Format                                   : AVC
Format/Info                              : Advanced Video Codec
Format profile                           : High@L4
Format settings, CABAC                   : Yes
Format settings, ReFrames                : 3 frames
Format settings, GOP                     : M=4, N=32
Codec ID                                 : 27
Duration                                 : 2mn 56s
Bit rate                                 : 7 617 Kbps
Width                                    : 1 920 pixels
Height                                   : 1 080 pixels
Display aspect ratio                     : 16:9
Frame rate                               : 25.000 fps
Standard                                 : Component
Color space                              : YUV
Chroma subsampling                       : 4:2:0
Bit depth                                : 8 bits
Scan type                                : Interlaced
Scan type, store method                  : Separated fields
Scan order                               : Top Field First
Bits/(Pixel*Frame)                       : 0.147
Stream size                              : 160 MiB (90%)
Color range                              : Limited
Color primaries                          : BT.709
Transfer characteristics                 : BT.709
Matrix coefficients                      : BT.709

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Also trying to play saved stream hang at the time 10 seconds, without video.

Link with recording sample: https://www.suhtlus.ee/sharefi…79-4e42-ae49-e97c0e46b272
Is it possible to find why it happened and is it plugins or RPi H264 firmware bug?

br,
Arthur

reufer · 18. Januar 2016

Hi Arthur

Zitat von arkoko

I have setup VDR 2.2.0 on the raspberry Pi2 as client for my master VDR server (streamdev-client, rpihddevice).
Now I discovered that some DVB-C channels are without video.

[...]

Link with recording sample: https://www.suhtlus.ee/sharefile.php?sha…49-e97c0e46b272
Is it possible to find why it happened and is it plugins or RPi H264 firmware bug?

Thanks for providing a sample, I just tried with omxplayer and this doesn't work either. It looks like a firmware bug to me, so I'm going to open an issue. Is it ok to share your link on github?

Regards,
Thomas

crow · 18. Januar 2016

Hi,
there is new Firmware released with fix for 'h264: Picture corruption'

Code

https://github.com/raspberrypi/firmware/issues/499#issuecomment-168301930

There is also an new Issue open 'h264: tv stream playback failure':

Code

https://github.com/raspberrypi/firmware/issues/529

reufer · 18. Januar 2016

Zitat von crow
there is new Firmware released with fix for 'h264: Picture corruption'
Code
https://github.com/raspberrypi/firmware/issues/499#issuecomment-168301930

That's a different issue.

Zitat von crow
There is also an new Issue open 'h264: tv stream playback failure':
Code
https://github.com/raspberrypi/firmware/issues/529

Yes, that's it. This patch is a workaround to get it working:

Diff

diff --git a/omx.c b/omx.c
index eea90fd..e6149c4 100644
--- a/omx.c
+++ b/omx.c
@@ -1010,7 +1010,7 @@ int cOmx::SetVideoCodec(cVideoCodec::eCodec codec)
 
 	// start with valid frames only if codec is MPEG2
 	// update: with FW from 2015/01/18 this is not necessary anymore
-	SetVideoErrorConcealment(true /*codec == cVideoCodec::eMPEG2*/);
+	SetVideoErrorConcealment(codec == cVideoCodec::eMPEG2);
 
 	// update: with FW from 2014/02/04 this is not necessary anymore
 	//SetVideoDecoderExtraBuffers(3);

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Regards,
Thomas

arkoko · 18. Januar 2016

Zitat von reufer

It looks like a firmware bug to me, so I'm going to open an issue. Is it ok to share your link on github?

Yes, Thomas, no problem. You can share link if it needed.
Thank you.

br,
Arthur

reufer · 18. Januar 2016

Zitat von arkoko

Yes, Thomas, no problem. You can share link if it needed.

I don't have to, since there's already an open issue on github. But thanks for sharing the sample!

Regards,
Thomas

arkoko · 18. Januar 2016

Oh, it is quite old bug and still not fixed.

crow · 18. Januar 2016

That issue linkder from reufer ist old, but there is also new one #529 h264: tv stream playback failure

Maybe you should comment there to, if many ppl report the problem maybe their going to speed up a bit work.

[rpihddevice] No video on some channels

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