[FFmpeg-user] how to concate two wmv files ?

[G Alexander]

what is this homework? this post is from someone who is clueless about video.

unless the two wmv’s have the same bitrate, fps, etc and audio properties etc you cannot “concatenate” them and have decent output as ffmpeg will use defaults and result in a crap low bitrate output.  you have to convert each to a common format then map the input streams into an output stream.

> On Feb 15, 2016, at 10:48, Jim Worrall <coniophora at gmail.com> wrote:
> 
> 
>> On 2016 Feb 15, at 7:49 AM, Bob <bobnlinux at gmail.com> wrote:
>> 
>> 
>> 
>> On Monday 15 February 2016 01:58 PM, Carl Eugen Hoyos wrote:
>>> Bob <bobnlinux <at> gmail.com> writes:
>>> 
>>>> Can any one suggest me a good approach along with
>>>> ffmpeg command line ?
>>> What did you try?
>>> 
>>> Carl Eugen
>>> 
>>> 
>> Hello Carl,
>> 
>> I like to
>> 
>> 1. concatenate the two .wmv (with ffmpeg)
>> 2. convert the resultant .wmv to .mp4 or .mpg without losing quality (with ffmpeg)
>> 3. remove some portion with the help of handbrake utility
>> 4. convert the .mp4/.mpg tp flv (with ffmpeg)
>> 5. upload to vimeo
> 
> Generally you can get more help here if you provide a command with its output when you attempt to do something.
> 
> These may help guide you in devising a command to concatenate your videos:
> 
> https://ffmpeg.org/faq.html#How-can-I-concatenate-video-files
> https://trac.ffmpeg.org/wiki/Concatenate
> 
> You may wish to clip it in the same command and save directly as an flv, rather than having two lossy transcodes.
> 
> 
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