[FFmpeg-user] Split video frame accurate respecting GOP's

[me at renecalles.de]

Hi Deepika, belcampo,

thank you both for your input.

I'm thinking in some kind of more general solution.
The idea is to parse the video, looking for I-Frames in a defined 
interval and split directly before the I-Frame appears.
This could also solve the fixed / non-fixed GOP situation.

The -ss and -t solution makes me feel a bit uncomfortable as it not 
really "under control".

Regards,
René



On Tue, 25 Oct 2011 12:49:55 +0200, belcampo wrote:
> On 10/25/2011 11:58 AM, Deepika wrote:
>> Hi rene,
>>
>> Please take a look at -ss and -t options to split the file. If you 
>> have fixed gops at regular intervals this should solve your problem.
>>
>> Regards,
>> Deepika
>> On 10/25/2011 05:04 PM, me at renecalles.de wrote:
>>> Hi there,
>>>
>>> i would like to split video streams frame accurate for separate 
>>> encoding on different machines.
>>>
>>> For that in my theory i need to split those files frame accurate 
>>> respecting the GOP's.
>>>
>>> Now my question is, is there any way to do it with ffmpeg or do i 
>>> have do stick with libav?
>>>
>>> Any hint is appreciated.
> Search for [issue2114] GOP-based multithreading(h264 encoding
> performance boost of 78%)
> I asked for this in june 2010. If your source is as mentioned above
> "you have fixed gops at regular intervals" as with DVB-S mpeg2 files
> which have GOPs of 12-frames it's easy. If it's h264, the HD-channels
> it's more tedious. There is a solution, if you use tsMuxeR/tsMuxerGUI
> you can split the source in parts, where tsMuxeR takes care of
> splitting at GOP-boundaries, each part starts with an I-frame.
> mkvtoolnix has the same ability.
>>>
>>> Thanks a lot.
>>>
>>> René
>>> _______________________________________________
>>> ffmpeg-user mailing list
>>> ffmpeg-user at ffmpeg.org
>>> http://ffmpeg.org/mailman/listinfo/ffmpeg-user
>>
>> _______________________________________________
>> ffmpeg-user mailing list
>> ffmpeg-user at ffmpeg.org
>> http://ffmpeg.org/mailman/listinfo/ffmpeg-user
>
> _______________________________________________
> ffmpeg-user mailing list
> ffmpeg-user at ffmpeg.org
> http://ffmpeg.org/mailman/listinfo/ffmpeg-user