Re: [FFmpeg-devel] [PATCH v2 2/4] avfilter/af_volumedetect.c: Added functions for int/float and planar/packed

[Anton Khirnov <anton@khirnov.net>]

Quoting Yigithan Yigit (2024-06-28 22:15:21)
> ---
>  libavfilter/af_volumedetect.c | 58 +++++++++++++++++++++++++++++++++++
>  1 file changed, 58 insertions(+)
> 
> diff --git a/libavfilter/af_volumedetect.c b/libavfilter/af_volumedetect.c
> index 327801a7f9..61c00e0248 100644
> --- a/libavfilter/af_volumedetect.c
> +++ b/libavfilter/af_volumedetect.c
> @@ -43,6 +43,64 @@ static inline double logdb(uint64_t v)
>      return -log10(d) * 10;
>  }
>  
> +static void process_float_planar_samples(VolDetectContext *vd, AVFrame *samples)
> +{
> +    int plane, i;
> +    int nb_channels = samples->ch_layout.nb_channels;
> +    int nb_samples  = samples->nb_samples;
> +    float *audio_data;
> +    for (plane = 0; plane < nb_channels; plane++) {
> +        audio_data = (float *)samples->extended_data[plane];
> +        for (i = 0; i < nb_samples; i++) {
> +            update_float_stats(vd, &audio_data[i]);
> +        }
> +    }
> +}
> +
> +static void process_float_packed_samples(VolDetectContext *vd, AVFrame *samples)
> +{
> +    int i, j;
> +    int nb_channels = samples->ch_layout.nb_channels;
> +    int nb_samples  = samples->nb_samples;
> +    float *audio_data;
> +    for (i = 0; i < nb_samples; i++) {
> +        audio_data = (float *)samples->extended_data[0];
> +        for (j = 0; j < nb_channels; j++) {
> +           update_float_stats(vd, &audio_data[i * nb_channels + j]);
> +        }
> +    }
> +}
> +
> +static void process_int_planar_samples(VolDetectContext *vd, AVFrame *samples)
> +{
> +    int plane, i;
> +    int nb_channels = samples->ch_layout.nb_channels;
> +    int nb_samples  = samples->nb_samples;
> +    int16_t *pcm;
> +    for (plane = 0; plane < nb_channels; plane++) {
> +        pcm = (int16_t *)samples->extended_data[plane];
> +        for (i = 0; i < nb_samples; i++) {
> +            vd->histogram[pcm[i] + 0x8000]++;
> +            vd->nb_samples++;
> +        }
> +    }
> +}
> +
> +static void process_int_packed_samples(VolDetectContext *vd, AVFrame *samples)
> +{
> +    int i, j;
> +    int nb_channels = samples->ch_layout.nb_channels;
> +    int nb_samples  = samples->nb_samples;
> +    int16_t *pcm;
> +    for (i = 0; i < nb_samples; i++) {
> +        pcm = (int16_t *)samples->extended_data[0];
> +        for (j = 0; j < nb_channels; j++) {
> +            vd->histogram[pcm[i * nb_channels + j] + 0x8000]++;
> +            vd->nb_samples++;
> +        }
> +    }
> +}

This looks in need of some templating.

-- 
Anton Khirnov
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