[FFmpeg-user] Not able to creating high-quality jpegs/mjpegs

[Robert Krüger]

On Fri, Sep 20, 2013 at 11:55 PM, Paul B Mahol <onemda at gmail.com> wrote:
> On 9/20/13, Robert Krueger <krueger at lesspain.de> wrote:
>> Hi,
>>
>> jpeg/mjpeg compression seems to have a certain limit that I am not
>> able to exceed and that is significantly lower than that of other
>> graphics programs.
>>
>> To test I took a png image (a still frame exported from a video) in
>> 1920x1080 and converted it to jpeg like so
>>
>> ffmpeg -i test.png -c:v mjpeg -q:v 1 test-ffmpeg.jpg
>
> -q:v 0 ?

same result. The files are bit-identical.