[Libav-user] Way to convert .wav file waveform into video .mjpeg file

[Paul B Mahol]

On 6/11/13, Wagner Patriota <wagner.patriota at gmail.com> wrote:
> would it be something like this?
> http://stackoverflow.com/questions/16509906/ffmpeg-can-i-draw-an-audio-channel-as-an-image/16931776#16931776

That link spread lies, ffmpeg have builltin "drawing audio channel as an image":

see following filters:

showspectrum
showwaves
avectorscope

And others visualizations can be added to.

>
>
> On Tue, Jun 11, 2013 at 4:28 PM, Paul B Mahol <onemda at gmail.com> wrote:
>
>> On 6/11/13, Olivier Daubry <olivier.daubry at gmail.com> wrote:
>> > Hello,
>> >
>> > I'm searching for a way to convert an array of values (44100 samples
>> coded
>> > on 16bits each every second) into a series of plot (graph) images (24
>> > per
>> > seconds), and then make a video out of it so that I could have a
>> converter
>> > from .wav to .mjpeg showing the waveform moving as if you were watching
>> the
>> > file being read by any DAW with a fixed playhead. I've heard about
>> > ffmpeg
>> > while searching for a way to do this.
>> >
>> > Do you guys think it could help me achieving this?
>>
>>
>> There are many ways to visualize waveform. In what exact
>> "visualization" you are interested?
>>
>> >
>> > Thank you
>> >
>> _______________________________________________
>> Libav-user mailing list
>> Libav-user at ffmpeg.org
>> http://ffmpeg.org/mailman/listinfo/libav-user
>>
>