Clone & Join

[SorryForMyEN]

Hi,

I have two videos, "A" and "B". "A" has 10 seconds and it's an introduction with credits. "B" has 2 hours and it's the movie itself. Question: Is there a program that converts only "A" to the same "B" configuration patterns so that both can be joined together without "B" being converted?

Trying to do this manually in most converters (FormatFactory, VirtualDub, Pazera, AnyVC) results in error messages about the impossibility to merge files with different specifications. So the search for a tool that automates the process. I know this operation would be simple by converting both, but it is strictly necessary to maintain the quality of "B" that would be lost with a recoding, which is not necessary with "A".

Thanks

[Budman1]

Getting the specifications can be somewhat automated using a program such as MediaInfo, especially using its CLI version but unfortunately, encoding is usually a manual process specifying the individual compatibility items. Knowing which items is usually a trial and error for most. I, myself, would love to know exactly which items need to be formatted in a program such as FFmpeg so that that might also be automated.

[Selur]

@SorryForMyEn:

Is there a program that converts only "A" to the same "B" configuration patterns so that both can be joined together without "B" being converted?

Short: No.

Long:
What you want is the basis for any tool which support 'smart rendering' for specific formats, so you are basically asking for a tool which support 'smart rendering' for any format.

At least for H.264 and H.265 MediaInfo does not provide enough data so that one can encode a compatible stream unless the stream was encoded with x264 or x265 and contains the encoding settings. For H.264 streams, analysing the raw stream with h264_parse helps out there, no clue for H.265.

-> Without restricting the formats of "A" and "B" I don't see that any tool will be capable (in the near future) of doing what you want.

Cu Selur

[SorryForMyEN]

Curiously, I have managed to do this operation with several codecs, but exactly H.265 has proved to be a mystery. It seems impossible to adjust all of your specs so as to make it compatible for the join. And it has been increasingly used as a codec for online broadcasting. I will make a request to the FormatFactory team to see if this functionality is possible or if this could enter in the software cronogram.

Thanks for the collaborations. If I get a relevant answer, I will return.