[mythtv-users] mythcutprojectx.sh and trunk (was: mythtranscode cutlist argument?)
chmeredith at gmail.com
Sat Jul 10 17:31:37 UTC 2010
On Sat, Jul 10, 2010 at 11:09 AM, John Pilkington <J.Pilk at tesco.net> wrote:
> On 10/07/10 16:06, John Pilkington wrote:
>> On 10/07/10 14:55, Christopher Meredith wrote:
>>> I played around with mythcutprojectx.sh some more and there are some
>>> additional problems I'm finding. First of all, it seems "hardcoded"
>>> for only mpeg2 audio even though many DVB and firewire recordings will
>>> have ac3 audio. Line 143 is the remuxing line and it assumes the audio
>>> track will be mpeg2. If you use it on a file with ac3 audio, it dies
>>> at this stage.
>> Yes: I'm dealing with dvb recordings in the UK, so I haven't tried it on
>> ac3 audio. Sorry!
>>> Perhaps the more important problem is that it seems to be working in
>>> reverse. In both tests I ran, it cut out the program, leaving ONLY the
>>> commercials. I've seen other threads on trouble with lossless
>>> commercial cutting in trunk (I'm running trunk, by the way) and I
>>> suspect this is related.
>>> I think I can probably modify the script to account for ac3 audio as
>>> well as hacking together a way to autodetect the video and audio
>>> stream IDs. But the inverse cutting is really fatal.
>> That is new(ish) in trunk - not seen in 0.23-fixes, currently at 25138
>> from ATrpms.
>> John P
> Here are the annotated first few lines of output for a single-section cut
> from the middle of a recording:
> ionice -c3 ./mythcutprojectx 1009_20100710015800.mpg 0xc9 0x191
> 4253 104868 # cut-in, EOF
> 0 92713 # Start of recording, cut-out
> 4253 92713 104868 cut-in, cut-out, EOF
> 115486708 # cut-in, bytes. Start of output
> 2060170552 # cut-out, bytes. End of output, 58m 57s
> 2337428816 # EOF, bytes
> Reading GUI-Switch...
> Reading Help Switch...
> A comparison may be useful
I pasted the entire output on pastebin. This is a 30-minute program
with the lead-in and lead-out cut, as well as three commercial breaks
in the middle.
What I imagine is the relevant part is this:
1836 18207 36778 54307
13700 29554 50077 55801
1836 13700 18207 29554 36778 50077 54307 55801
Reading Help Switch...
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