[FFmpeg-devel] [PATCH] lavfi: add showspectrum filter.

[Clément Bœsch]

On Fri, Aug 10, 2012 at 12:30:27AM +0200, Clément Bœsch wrote:
> TODO: bump
> ---
>  libavfilter/Makefile           |   1 +
>  libavfilter/allfilters.c       |   1 +
>  libavfilter/avf_showspectrum.c | 318 +++++++++++++++++++++++++++++++++++++++++
>  3 files changed, 320 insertions(+)
>  create mode 100644 libavfilter/avf_showspectrum.c
> 
[...]
> +/**
> + * @file
> + * audio to spectrum (video) transmedia filter, based on ffplay rdft showmode
> + * and lavfi/avf_showwaves
> + */
> +
> +#include <math.h>
> +
> +#include "libavcodec/avfft.h"
> +#include "libavutil/audioconvert.h"
> +#include "libavutil/opt.h"
> +#include "libavutil/parseutils.h"
> +#include "avfilter.h"
> +#include "formats.h"
> +#include "audio.h"
> +#include "video.h"
> +#include "internal.h"

> +#include "drawutils.h"

Consider this...

> +
> +typedef struct {
> +    const AVClass *class;
> +    int w, h;
> +    int xpos;
> +    AVFilterBufferRef *outpicref;

> +    FFDrawContext draw;

...and this removed leftovers.

[...]

I'll add the documentation in the next version; I'm sure I'll get a bunch
of other things to fix on this first version anyway.

-- 
Clément B.
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