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af_amix: use AVFloatDSPContext.vector_fmac_scalar()

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Justin Ruggles
2012-06-08 22:34:30 -04:00
parent 82b2df9790
commit f0ece49e74
1 changed files with 8 additions and 11 deletions
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19
libavfilter/af_amix.c
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@@ -32,6 +32,7 @@
#include "libavutil/audio_fifo.h"
#include "libavutil/avassert.h"
#include "libavutil/avstring.h"
#include "libavutil/float_dsp.h"
#include "libavutil/mathematics.h"
#include "libavutil/opt.h"
#include "libavutil/samplefmt.h"
@@ -152,6 +153,7 @@ static int frame_list_add_frame(FrameList *frame_list, int nb_samples, int64_t p
typedef struct MixContext {
const AVClass *class; /**< class for AVOptions */
AVFloatDSPContext fdsp;
int nb_inputs; /**< number of inputs */
int active_inputs; /**< number of input currently active */
@@ -263,14 +265,6 @@ static int config_output(AVFilterLink *outlink)
return 0;
}
/* TODO: move optimized version from DSPContext to libavutil */
static void vector_fmac_scalar(float *dst, const float *src, float mul, int len)
{
int i;
for (i = 0; i < len; i++)
dst[i] += src[i] * mul;
}
/**
* Read samples from the input FIFOs, mix, and write to the output link.
*/
@@ -295,9 +289,10 @@ static int output_frame(AVFilterLink *outlink, int nb_samples)
if (s->input_state[i] == INPUT_ON) {
av_audio_fifo_read(s->fifos[i], (void **)in_buf->extended_data,
nb_samples);
vector_fmac_scalar((float *)out_buf->extended_data[0],
(float *) in_buf->extended_data[0],
s->input_scale[i], nb_samples * s->nb_channels);
s->fdsp.vector_fmac_scalar((float *)out_buf->extended_data[0],
(float *) in_buf->extended_data[0],
s->input_scale[i],
FFALIGN(nb_samples * s->nb_channels, 16));
}
}
avfilter_unref_buffer(in_buf);
@@ -500,6 +495,8 @@ static int init(AVFilterContext *ctx, const char *args, void *opaque)
ff_insert_inpad(ctx, i, &pad);
}
avpriv_float_dsp_init(&s->fdsp, 0);
return 0;
}