[FFmpeg-devel] [PATCH] avcodec/alsdec: implement floating point decoding

Clément Bœsch u at pkh.me
Wed Jul 27 21:52:07 EEST 2016


On Wed, Jul 27, 2016 at 07:48:56PM +0200, Thilo Borgmann wrote:
> > @@ -1803,6 +2057,34 @@ static av_cold int decode_init(AVCodecContext *avctx)
> >      ctx->raw_buffer       = av_mallocz_array(avctx->channels * channel_size, sizeof(*ctx->raw_buffer));
> >      ctx->raw_samples      = av_malloc_array(avctx->channels, sizeof(*ctx->raw_samples));
> >  
> > +    if (sconf->floating) {
> > +        ctx->acf               = av_malloc_array(avctx->channels, sizeof(*ctx->acf));
> > +        ctx->shift_value       = av_malloc_array(avctx->channels, sizeof(*ctx->shift_value));
> > +        ctx->last_shift_value  = av_malloc_array(avctx->channels, sizeof(*ctx->last_shift_value));
> > +        ctx->last_acf_mantissa = av_malloc_array(avctx->channels, sizeof(*ctx->last_acf_mantissa));
> > +        ctx->raw_mantissa      = av_malloc_array(avctx->channels, sizeof(*ctx->raw_mantissa));
> > +
> > +        ctx->larray = av_malloc_array(ctx->cur_frame_length * 4, sizeof(*ctx->larray));
> > +        ctx->nbits  = av_malloc_array(ctx->cur_frame_length, sizeof(*ctx->nbits));
> > +        ctx->mlz    = av_malloc(sizeof(*ctx->mlz));
> > +        ff_mlz_init_dict(avctx, ctx->mlz);
> > +        ff_mlz_flush_dict(ctx->mlz);
> > +
> > +        if (!ctx->mlz || !ctx->acf || !ctx->shift_value || !ctx->last_shift_value
> > +            || !ctx->last_acf_mantissa || !ctx->raw_mantissa) {
> > +            av_log(avctx, AV_LOG_ERROR, "Allocating buffer memory failed.\n");
> > +            ret = AVERROR(ENOMEM);
> > +            goto fail;
> > +        }
> 
> > +        for (c = 0; c < avctx->channels; ++c) {
> > +            ctx->raw_mantissa[c] = av_malloc_array(ctx->cur_frame_length, sizeof(**ctx->raw_mantissa));
> 
> Is there no av_malloc_arrayz() ?
> 

there is av_mallocz_array()

-- 
Clément B.
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