Is it just me or is lossless transcoding (specifically of High Definition recordings) broken with MythTV 0.20.2? I can't seem to get it to work.
I recently upgraded my working MBE with R5F1 to MythTV 0.20.2 following
Cecil's instructions. All went well. The other night I was trying to transcode an episode of Conan O'Brien using a cut list to preserve only the musical performance. I'm gunning for a lossless transcode. The show was recorded on a HD-3000 set up as a DVB card. When the transcode job runs, it fails. The mythbackend.log reveals:
Code:
2007-09-13 12:43:53.753 JobQueue: Transcode Starting for Late Night With Conan O'Brien: 6.7 GB (High Quality)
transcode v1.0.2 (C) 2001-2003 Thomas Oestreich, 2003-2004 T. Bitterberg
'transcode -h | more' shows a list of available command line options.
2007-09-13 12:43:53.863 JobQueue: Transcode Errored: Late Night With Conan O'Brien: (High Quality)
There's not much to go on there. Taking a look into the DB, my jobqueue table has this:
Code:
mysql> Select * from jobqueue;
+-----+--------+---------------------+---------------------+------+------+------
| id | chanid | starttime | inserttime | type | cmds | flags | status | statustime| hostname | args | comment |
+-----+--------+---------------------+---------------------+------+------+------
| 534 | 1041 | 2007-09-11 00:37:00 | 2007-09-12 22:35:11 | 1 | 0 | 1 | 304 | 2007-09-13 12:43:53 | mythbox | | Transcode failed with status: 1 |
I see the Status 304 code. That's not good.
Code:
mysql> select * from recordingprofiles;
+----+----------------+-------------------------+-------------------------+--------------+
| id | name | videocodec | audiocodec | profilegroup |
+----+----------------+-------------------------+-------------------------+--------------+
| 1 | Default | NULL | NULL | 1 |
| 2 | Live TV | NULL | NULL | 1 |
| 3 | High Quality | NULL | NULL | 1 |
| 4 | Low Quality | NULL | NULL | 1 |
| 5 | Default | MPEG-2 Hardware Encoder | MPEG-2 Hardware Encoder | 2 |
| 6 | Live TV | MPEG-2 Hardware Encoder | MPEG-2 Hardware Encoder | 2 |
| 7 | High Quality | MPEG-2 Hardware Encoder | MPEG-2 Hardware Encoder | 2 |
| 8 | Low Quality | MPEG-2 Hardware Encoder | MPEG-2 Hardware Encoder | 2 |
| 9 | Default | NULL | NULL | 3 |
| 10 | Live TV | NULL | NULL | 3 |
| 11 | High Quality | NULL | NULL | 3 |
| 12 | Low Quality | NULL | NULL | 3 |
| 13 | Default | NULL | NULL | 4 |
| 14 | Live TV | NULL | NULL | 4 |
| 15 | High Quality | NULL | NULL | 4 |
| 16 | Low Quality | NULL | NULL | 4 |
| 17 | Default | NULL | NULL | 5 |
| 18 | Live TV | NULL | NULL | 5 |
| 19 | High Quality | NULL | NULL | 5 |
| 20 | Low Quality | NULL | NULL | 5 |
| 21 | RTjpeg/MPEG4 | RTjpeg | MP3 | 6 |
| 22 | MPEG2 | RTjpeg | MP3 | 6 |
| 23 | Default | NULL | NULL | 8 |
| 24 | Live TV | NULL | NULL | 8 |
| 25 | High Quality | NULL | NULL | 8 |
| 26 | Low Quality | NULL | NULL | 8 |
| 27 | High Quality | RTjpeg | MP3 | 6 |
| 28 | Medium Quality | MPEG-4 | MP3 | 6 |
| 29 | Low Quality | MPEG-4 | MP3 | 6 |
| 30 | Default | NULL | NULL | 10 |
| 31 | Live TV | NULL | NULL | 10 |
| 32 | High Quality | NULL | NULL | 10 |
| 33 | Low Quality | NULL | NULL | 10 |
| 34 | Default | NULL | NULL | 11 |
| 35 | Live TV | NULL | NULL | 11 |
| 36 | High Quality | NULL | NULL | 11 |
| 37 | Low Quality | NULL | NULL | 11 |
| 38 | Default | NULL | NULL | 12 |
| 39 | Live TV | NULL | NULL | 12 |
| 40 | High Quality | NULL | NULL | 12 |
| 41 | Low Quality | NULL | NULL | 12 |
+----+----------------+-------------------------+-------------------------+--------------+
41 rows in set (0.00 sec)
Code:
mysql> select * from profilegroups;
+----+----------------------------------------------------------+-----------+------------+----------+
| id | name | cardtype | is_default | hostname |
+----+----------------------------------------------------------+-----------+------------+----------+
| 1 | Software Encoders (v4l based) | V4L | 1 | NULL |
| 2 | MPEG-2 Encoders (PVR-x50, PVR-500) | MPEG | 1 | NULL |
| 3 | Hardware MJPEG Encoders (Matrox G200-TV, Miro DC10, etc) | MJPEG | 1 | NULL |
| 4 | Hardware HDTV | HDTV | 1 | NULL |
| 5 | Hardware DVB Encoders | DVB | 1 | NULL |
| 6 | Transcoders | TRANSCODE | 1 | NULL |
| 7 | FireWire Input | FIREWIRE | 1 | NULL |
| 8 | USB Mpeg-4 Encoder (Plextor ConvertX, etc) | GO7007 | 1 | NULL |
| 9 | DBOX2 Input | DBOX2 | 1 | NULL |
| 10 | Freebox Input | Freebox | 1 | NULL |
| 11 | HDHomeRun Recorders | HDHOMERUN | 1 | NULL |
| 12 | CRC IP Recorders | CRC_IP | 1 | NULL |
+----+----------------------------------------------------------+-----------+------------+----------+
12 rows in set (0.00 sec)
Code:
mysql> select * from codecparams where (profile='2' OR profile='5' OR profile='6');
+---------+--------------------------+-----------+
| profile | name | value |
+---------+--------------------------+-----------+
| 5 | autotranscode | 0 |
| 5 | width | 720 |
| 5 | height | 480 |
| 5 | rtjpegquality | 170 |
| 5 | rtjpeglumafilter | 0 |
| 5 | rtjpegchromafilter | 0 |
| 5 | mpeg4bitrate | 2200 |
| 5 | mpeg4maxquality | 2 |
| 5 | mpeg4minquality | 15 |
| 5 | mpeg4qualdiff | 3 |
| 5 | mpeg4scalebitrate | 1 |
| 5 | mpeg4optionvhq | 0 |
| 5 | mpeg4option4mv | 0 |
| 5 | mpeg4optionidct | 0 |
| 5 | mpeg4optionime | 0 |
| 5 | hardwaremjpegquality | 100 |
| 5 | hardwaremjpeghdecimation | 4 |
| 5 | hardwaremjpegvdecimation | 4 |
| 5 | mpeg2streamtype | MPEG-2 PS |
| 5 | mpeg2aspectratio | 4:3 |
| 5 | mpeg2bitrate | 3000 |
| 5 | mpeg2maxbitrate | 3500 |
| 5 | samplerate | 48000 |
| 5 | mp3quality | 7 |
| 5 | volume | 90 |
| 5 | mpeg2audtype | Layer II |
| 5 | mpeg2audbitratel1 | 448 |
| 5 | mpeg2audbitratel2 | 384 |
| 5 | mpeg2audvolume | 88 |
| 6 | autotranscode | 0 |
| 6 | width | 720 |
| 6 | height | 480 |
| 6 | rtjpegquality | 170 |
| 6 | rtjpeglumafilter | 0 |
| 6 | rtjpegchromafilter | 0 |
| 6 | mpeg4bitrate | 2200 |
| 6 | mpeg4maxquality | 2 |
| 6 | mpeg4minquality | 15 |
| 6 | mpeg4qualdiff | 3 |
| 6 | mpeg4scalebitrate | 1 |
| 6 | mpeg4optionvhq | 0 |
| 6 | mpeg4option4mv | 0 |
| 6 | mpeg4optionidct | 0 |
| 6 | mpeg4optionime | 0 |
| 6 | hardwaremjpegquality | 100 |
| 6 | hardwaremjpeghdecimation | 4 |
| 6 | hardwaremjpegvdecimation | 4 |
| 6 | mpeg2streamtype | MPEG-2 PS |
| 6 | mpeg2aspectratio | 4:3 |
| 6 | mpeg2bitrate | 3000 |
| 6 | mpeg2maxbitrate | 3500 |
| 6 | samplerate | 48000 |
| 6 | mp3quality | 7 |
| 6 | volume | 90 |
| 6 | mpeg2audtype | Layer II |
| 6 | mpeg2audbitratel1 | 448 |
| 6 | mpeg2audbitratel2 | 384 |
| 6 | mpeg2audvolume | 88 |
+---------+--------------------------+-----------+
58 rows in set (0.00 sec)
Code:
mysql> select * from settings where value LIKE '%transcode%';
+-----------------------------------+-----------+---------------+
| value | data | hostname |
+-----------------------------------+-----------+---------------+
| DefaultTranscoder | 27 | NULL |
| JobAllowTranscode | 1 | mythbox |
| AutoTranscodeBeforeAutoCommflag | 0 | NULL |
| AutoTranscode | 0 | NULL |
| TranscodeCommand | transcode | mythbox |
| MTDConcurrentTranscodes | 1 | mythbox |
| JobQueueTranscodeCommand | transcode | NULL |
| MythArchiveAlwaysUseMythTranscode | 1 | mythbox |
| MythArchiveAlwaysUseMythTranscode | 1 | mythbox-rfe-2 |
| TranscodeCommand | transcode | mythbox-rfe-2 |
| MTDConcurrentTranscodes | 1 | mythbox-rfe-2 |
| TranscodeCommand | transcode | mythbox-rfe-1 |
| MTDConcurrentTranscodes | 1 | mythbox-rfe-1 |
| mythvideo.TrustTranscodeFRDetect | 1 | mythbox |
| mythvideo.TrustTranscodeFRDetect | 1 | mythbox-rfe-2 |
+-----------------------------------+-----------+---------------+
15 rows in set (0.00 sec)
I do not transcode very often, so I'm unsure of what's right and what's wrong.
When I use mythtranscode from the command line, I get a file that's about the same size of the original!
Maybe only a few seconds are missing. Sounds a lot like
this post.
Code:
$ mythtranscode -m -l -p autodetect --showprogress -v all,nodatabase -i /myth/tv/1041_20070911003700.mpg -o /myth/tv/new_file.mpg
$ ls -l /myth/tv/1041_20070911003700.mpg
-rw-r--r-- 1 mythtv mythtv 7171526772 Sep 11 01:36 /myth/tv/1041_20070911003700.mpg
$ ls -l /myth/tv/new_file.mpg
-rw-r--r-- 1 mythtv mythtv 7085463556 Sep 13 13:41 /myth/tv/new_file.mpg
I found this ticket from April 2007:
http://svn.mythtv.org/trac/ticket/3274 but there's no update on it's status.
I'm really confused as to what's going on. I don't transcode much, so I don't know if this is directly related to the 0.20.2 upgrade or not. Anyone else having problems?
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