[FFmpeg-user] Running multiple ffmpeg commands with minimal loss in quality

[MrNice]

On 27/07/15 11:54, Peter B. wrote:
> On 07/25/2015 11:53 AM, MrNice wrote:
>>> The standard approach to this kind of issue is to use (as close to)
>> losslessly encoded intermediate files as possible. I.e. either use a
>> codec designed for lossless encoding such as "HuffYUV", or use something
>> like x264 with "lossless" settings.
>> Why do you add " " around lossless for x264. Is x264 still lossy even
>> with "lossless" setting?
> 
> Don't worry: x264-lossless is really lossless.
> 
> At least, according to my tests:
> http://download.das-werkstatt.com/pb/mthk/info/video/comparison_video_codecs_containers.html#codec_tests
> 
> What might also be interesting is, that these tests show that FFV1.3
> encodes and decodes a lot faster than x264-lossless:
> 
> encoding/decoding FPS:
> x264: 94 / 190 fps
> FFV1.3: 216 / 277 fps
> 
> 
> 
>> BTW what is/are it/they?
> 
> What do you mean?
> 
> 
> Kind regards,
> Pb

So 2 questions:
- What are the command options to add to get x264 lossless?
-preset fast -qp 0 , only/good?

- How I can know FFV1 is version 1.3?