[Kdenlive-devel] Editing AVCHD h264/AC3 files in kdenlive

[Dan Dennedy]

On Thu, Apr 30, 2009 at 1:52 PM, sean darcy <seandarcy2 at gmail.com> wrote:
> sean darcy wrote:
>> Dan Dennedy wrote:
>>> 2009/4/17 Andre Madeira <amadeirabus at gmail.com>:
>>>> Hello kdenlive-devel!
>>>>
>>>> My goal is to edit AVCHD (h264/AC3) files in kdenlive. The videos are
>>> It is not yet ready.
>>>
>>>> generated from my Panasonic HDC-SD1 camcorder and are all interlaced or
>>>> 1080i. For what is worth, I can play these files properly on my linux box
>>> Playing sequentially is one thing, seeking is another, and editing
>>> requires seeking. In ffplay, try clicking around on the window. The X
>>> axis determines the seek percentage. It is not clean. This was being
>>> addressed a couple of months ago, and great progress was made;
>>> however, the effort has stalled.
>>>
>>
>> So if we want to edit AVCHD, we need to convert them first? What should
>> we convert them to ( .avi?)? And how?
>>
>> googling found this script:
>>
>> xporthdmv -hn $file 1 1 1 && mv bits0001.mpa $audiofile
>> ldecod -i bits0001.mpv -o $videofifo &
>> ffmpeg -r 29.97 -s 1440x1080 -i $videofifo -i $audiofile -vcodec mpeg4
>> -sameq -acodec copy -aspect 16:9 -b 15000k outfile
>>
>> which uses xport from http://www.w6rz.net/ and ldecod from
>> http://iphome.hhi.de/suehring/tml/download/ .
>>
>> xporthdmv demultiplexes the .ts file, then ldecod decodes video to YUV (
>> 4.2.0?).
>>
>> Is this how it's done? Can kdenlive now edit the resulting file?

Can you not just use ffmpeg? I thought the main remaining issues with
ffmpeg were seeking and multi-threaded decode, which a conversion to
uncompressed via ffmpeg should be fine.

>> sean (a potential new owner of an avchd camcorder)
>
> Actually, if ldecod converts the h264 video to yuv, shouldn't you leave
> it alone, and just use ffmpeg to multiplex the audio:
>
> ffmpeg -i $videofifo -i $audiofile -vcodec copy -acodec copy outfile.avi

Sure, and you can use HuffYUV if you want to reduce file size and I/O a little.

-- 
+-DRD-+