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I need to convert JTV (J River TV Format) to MPG or other standard format
jmone:
OK - I know that many will argue that the dvr-ms format is "proprietary" but really the JRiver format is even more so. Most DTV progs let you select your format for recording DTV to either dvr-ms or mpeg from which they can be manipulated by heaps of 3rd party tools. I had no problems editing and even sharing a TV recording prior to MC13 but what on earth is the JRiver format and how can one edit / and play outside of MC? Please convine me this is not a backward step!
Yours in scepticism
Nathan
Matt:
--- Quote from: jmone on October 18, 2008, 03:35:29 am ---OK - I know that many will argue that the dvr-ms format is "proprietary" but really the JRiver format is even more so. Most DTV progs let you select your format for recording DTV to either dvr-ms or mpeg from which they can be manipulated by heaps of 3rd party tools. I had no problems editing and even sharing a TV recording prior to MC13 but what on earth is the JRiver format and how can one edit / and play outside of MC? Please convine me this is not a backward step!
Yours in scepticism
Nathan
--- End quote ---
We are merging recording and time-shifting. This way, you can keep part of what you've been watching or watch what you're recording.
The dvr-ms format has limitations that are problematic, like only doing MPEG-2 (so it won't work for analog). It's also a closed system, so cross-platform and extensibility are tough.
The JRiver format should be playable in other applications since we provide Directshow filters.
We may make a container format (like dvr-ms) to pool multiple files into a single container, but we're not certain it's necessary. Personally I don't really care if it stores the files using roman numerals as long as it works nicely.
We're happy to discuss this if you disagree.
jmone:
I absolutely agree (and have argued for ages) that there be one stream that is used for both TS and Recording..…but I’m not sold on using home grown formats option as:
1) What’s wrong with the existing available CODECS (or does the world really need another CODEC to do the same thing). The other TV Software vendors seem to make do with ts / dvr-ms / mpeg as isn’t DVB in MPEG anyway (& ? ? ? for AVI – I don’t use it but I’ve seen mpeg and avi flavours out there).
2) How do you distribute a recording? (or Mother-in-law wants me to “tape” a show). Don’t laugh, my cousin was being interviewed on TV (Aust Rocket Scientist working on Mars Phoenix Project) and she wanted me to “tape” it so she could watch it on her Standalone DVD Players…..I said “No Can Do” so she contacted the TV Station and they sent her a nice standard DVD - dead simple with DVR-MS or MPG
3) How do I edit my recordings? OK I’ve recorded a Music Video Prog and now want to extract and save as individual recordings the Music Video clips I like – dead simple with DVR-MS or MPG
4) Application Compatibility and Format Longevity. Who knows what platforms we will be using in the next few years but I bet that I’ll be able to play my DVR-MS or MPG files but not so the home grown format ones.
5) Transcoding Degradation. I really dislike transcoding where you don’t have to – the DTV stream is only going to look and sound worse trascoding to another format regarless of how “good” the process is.
My 2cents worth – I agree that combining the TS (was JRiver format) and Recoding (was DVR-MS) was the way to go but I think that one of the MPG flavours should have been used.
Nathan
JimH:
For now, this is the direction we're headed. Reasons?
The mpg license folks aren't much fun. Patents are landmines. The codec is ours. It's faster. We can whack it into little pieces and stream them -- this works well with caching services like Akamai and Level 3.
Eventually, we can probably add DVD writing or conversion to a format of your choosing.
jmone:
--- Quote from: JimH on October 18, 2008, 03:53:08 pm ---For now, this is the direction we're headed. Reasons?
The mpg license folks aren't much fun. Patents are landmines. The codec is ours. It's faster. We can whack it into little pieces and stream them -- this works well with caching services like Akamai and Level 3.
Eventually, we can probably add DVD writing or conversion to a format of your choosing.
--- End quote ---
Sure and "Beta" was better too yet the popular one won....So for "now" a JRiver ---> MPEG file converter option would be good even if it was a standalone prog that could be used on the few streams that need to be coverted for what ever reason. Is there already one or a third party one?
Thanks
Nathan
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