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

[belcampo]

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
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>
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