[mythtv-users] Little gems on MythTV wiki

Brent Bolin brent.bolin at gmail.com
Mon Feb 22 13:24:03 UTC 2010


Ran across this info -

Did you know you can merge two MPG files together?
cat File1 File2 > Merged File-name.

Doesn't appear to work.  I have a couple of DVD's that are on two
disks.  Currently have them as video.name.disk1.mpg and
video.name.disk2

So I tested to see what would happen.

Here is a snippet of what I see in  mythfrontend.log

2010-02-22 07:10:06.282 [h264 @ 0x40646e0]AVC: nal size 1315803467
2010-02-22 07:10:06.282 [h264 @ 0x40646e0]no frame!
2010-02-22 07:10:06.282 [h264 @ 0x40646e0]AVC: nal size -1686999763
2010-02-22 07:10:06.283 [h264 @ 0x40646e0]no frame!
2010-02-22 07:10:06.283 [h264 @ 0x40646e0]AVC: nal size -645962405
2010-02-22 07:10:06.283 [h264 @ 0x40646e0]no frame!
2010-02-22 07:10:06.283 [h264 @ 0x40646e0]AVC: nal size 1296261589
2010-02-22 07:10:06.283 [h264 @ 0x40646e0]no frame!
2010-02-22 07:10:06.284 [h264 @ 0x40646e0]AVC: nal size -1383481424
2010-02-22 07:10:06.284 [h264 @ 0x40646e0]no frame!
2010-02-22 07:10:06.333 AFD: Opened codec 0xaed1df70, id(H264) type(Video)
2010-02-22 07:10:06.334 AFD: codec AAC has 2 channels
2010-02-22 07:10:06.348 AFD: Opened codec 0xac9e8a90, id(AAC) type(Audio)
2010-02-22 07:10:06.348 AFD: codec AC3 has 2 channels
2010-02-22 07:10:06.350 AFD: Opened codec 0xac9e9010, id(AC3) type(Audio)
2010-02-22 07:10:06.350 AFD Error: Could not find decoder for codec
(Unknown Codec ID), ignoring.
2010-02-22 07:10:06.398 AFD: Opened codec 0xacdaad20, id(H264) type(Video)
2010-02-22 07:10:06.398 AFD: codec AAC has 2 channels
2010-02-22 07:10:06.399 AFD: Opened codec 0xacdab2a0, id(AAC) type(Audio)
2010-02-22 07:10:06.399 AFD: codec AC3 has 2 channels
2010-02-22 07:10:06.400 AFD: Opened codec 0xacdab820, id(AC3) type(Audio)
2010-02-22 07:10:06.400 AFD Error: Could not find decoder for codec
(Unknown Codec ID), ignoring.
2010-02-22 07:10:06.423 Opening audio device 'spdif'. ch 2(2) sr 48000
2010-02-22 07:10:06.423 Opening ALSA audio device 'iec958:{ AES0 0x02 }'.
2010-02-22 07:10:06.601 Opening audio device 'spdif'. ch 2(2) sr 48000
2010-02-22 07:10:06.601 Opening ALSA audio device 'iec958:{ AES0 0x02 }'.
2010-02-22 07:10:06.667 VideoOutputXv: XVideo Adaptor Name: 'NV17 Video Texture'
2010-02-22 07:10:06.737 OSD Theme Dimensions W: 1280 H: 720
2010-02-22 07:10:07.910 TV: StartPlayer(0, Watching Video, main) -- end ok
2010-02-22 07:10:07.911 New DB connection, total: 3
2010-02-22 07:10:07.912 New DB connection, total: 4
YadifDeint: In-Pixformat = 1 Out-Pixformat=1
YadifDeint: size changed from 0 x 0 -> 720 x 432
YadifDeint: Using existing thread.
2010-02-22 07:10:07.920 OpenGLVideoSync()
2010-02-22 07:10:07.982 Video timing method: SGI OpenGL
2010-02-22 07:10:09.848 NVP(0): Prebuffer wait timed out 10 times.
2010-02-22 07:10:11.731 NVP(0): Prebuffer wait timed out 20 times.

The two video files were created using Handbrake with High Profile setting.

filetype shows -

 file ap*
apocalypse.now.disk1.mpg: setgid ISO Media, MPEG v4 system, version 2
apocalypse.now.disk2.mpg: setgid ISO Media, MPEG v4 system, version 2

So I guess this doesn't work.


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