[FFmpeg-devel] DVR MPEG4 variant (AS-3024)

[Carl Eugen Hoyos]

2017-02-03 15:14 GMT+01:00 Ivo Andonov <ivo.andonov at gmail.com>:
> 2017-02-03 15:58 GMT+02:00 Carl Eugen Hoyos <ceffmpeg at gmail.com>:

>> > I've got some old Pinetron DVRs that are supposed to produce a MPEG4
>> > bitstream. Indeed they are but no non-Pinetron software can decode it.
>>
>> Please provide a sample!
>>
>> > I do now know what is the best approach for registering this as a new
>> > decoder
>>
>> It should be possible to identify the codec while reading the bitstream.

The encoder sets no user data, so identification is not as simple as
hoped: How do subsequent frames start? Do you know what the
first bytes mean?

> Not sure if attachments are fine here... Attempting one.

I can confirm that your suggested change (above "pred = FASTDIV")
works as expected.

Carl Eugen