[Kdenlive-devel] [Mlt-devel] Framerate Issue on MTS files ?

[Dan Dennedy]

On Sun, Dec 20, 2009 at 1:23 PM, Marco Gittler <g.marco at freenet.de> wrote:
> Hi
>
> i found the piece, that caused the render in double frame rate of the video.
> it is setting:
> skip_frame:bidir (which is an ffmpeg option)

is it set to 1 or empty string?

> is this still needed to be set in the .kdenlive file or was this only needed in earlier versions of ffmpeg ?
>

It is not needed by anything. However, it is still a valid option to
improve seeking and playback performance especially for H.264, but it
should be placed into MLT XML files which will be used to make a final
render.

>
> Am 19.12.2009 um 06:17 schrieb Dan Dennedy:
>
>> On Fri, Dec 18, 2009 at 1:21 AM, Marco Gittler <g.marco at freenet.de> wrote:
>>> Hi
>>>
>>> I have a Canon HF 200. Mplayer play's the plain files from the cam in correct speed.
>>> Converting to mp4 and uses this file in kdenlive produces also correct speed videos.
>>> But using/converting the plain files from the cam, will result in too fast playback (1080-50i video). Audio plays at normal speed.
>>> Kdenlive shows also a framerate of 50fps. Since converting using only mlt the result is also a video at double speed,
>>> audio at normal speed, i think there is an issue with those files and mlt ?
>>
>> or those files and ffmpeg, which appears you did not more directly
>> test. Recently on the kdenlive list, Evert was complaining about a
>> FFmpeg demux bug that causes this same issue with his AVCHD. When he
>> tried to do his own transcode using ffmpeg it reproduced the problem,
>> but using one of the DNxHD profiles we provide in Kdenlive, it
>> transcodes just fine.
>>
>>> Sample (plain) video:  http://195.42.115.208/00031.MTS
>>
>> downloading now.
>> --
>> +-DRD-+
>>
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