[FFmpeg-user] ffprobe frame rate / time base

Carl Eugen Hoyos ceffmpeg at gmail.com
Wed Aug 24 21:12:05 EEST 2016


2016-08-24 10:35 GMT+02:00 Erik Dobberkau <erik.dobberkau at gmail.com>:
> 2016-08-24 9:59 GMT+02:00 Carl Eugen Hoyos <ceffmpeg at gmail.com>:
>> Which information do you think is missing?
> Like, the encoder used to generate the sample I have provided?

Can you find out?

> Not necessary because all paffs are created equal?

This is not correct, I provided two paff mov samples that do not show
the same issue (but have no B-frames).

> Do you think/know it's a general issue with paff-encoded video?

Apparently not.

> Is it still correct ffmpeg (i.e. x264) won't encode paff (only mbaff), but
> should be able to decode it correctly?

FFmpeg won't encode h264, x264 uses mbaff (indicating paff has no
And yes, the idea is that the FFmpeg h264 decoder is working correctly.
(Unfortunately, it sill has timestamp issues with h264 though)

>> I only used FFmpeg on random samples, I am currently away from a
>> DVB 1080i source.
> How can I check if a video has been encoded using paff/mbaff?

Sounds like another ticket for a missing fieature in FFmpeg;-(

The reference decoder shows two source fields if a frame was

Carl Eugen

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