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af_amix: allow float planar sample format as input

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This commit is contained in:
Justin Ruggles 2012-06-08 23:59:04 -04:00
parent f0ece49e74
commit ae46fbee1d
1 changed files with 15 additions and 4 deletions
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19
libavfilter/af_amix.c
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@ -162,6 +162,7 @@ typedef struct MixContext {
int nb_channels; /**< number of channels */
int sample_rate; /**< sample rate */
int planar;
AVAudioFifo **fifos; /**< audio fifo for each input */
uint8_t *input_state; /**< current state of each input */
float *input_scale; /**< mixing scale factor for each input */
@ -225,6 +226,7 @@ static int config_output(AVFilterLink *outlink)
int i;
char buf[64];
s->planar = av_sample_fmt_is_planar(outlink->format);
s->sample_rate = outlink->sample_rate;
outlink->time_base = (AVRational){ 1, outlink->sample_rate };
s->next_pts = AV_NOPTS_VALUE;
@ -287,12 +289,20 @@ static int output_frame(AVFilterLink *outlink, int nb_samples)
for (i = 0; i < s->nb_inputs; i++) {
if (s->input_state[i] == INPUT_ON) {
int planes, plane_size, p;
av_audio_fifo_read(s->fifos[i], (void **)in_buf->extended_data,
nb_samples);
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));
planes = s->planar ? s->nb_channels : 1;
plane_size = nb_samples * (s->planar ? 1 : s->nb_channels);
plane_size = FFALIGN(plane_size, 16);
for (p = 0; p < planes; p++) {
s->fdsp.vector_fmac_scalar((float *)out_buf->extended_data[p],
(float *) in_buf->extended_data[p],
s->input_scale[i], plane_size);
}
}
}
avfilter_unref_buffer(in_buf);
@ -523,6 +533,7 @@ static int query_formats(AVFilterContext *ctx)
{
AVFilterFormats *formats = NULL;
ff_add_format(&formats, AV_SAMPLE_FMT_FLT);
ff_add_format(&formats, AV_SAMPLE_FMT_FLTP);
ff_set_common_formats(ctx, formats);
ff_set_common_channel_layouts(ctx, ff_all_channel_layouts());
ff_set_common_samplerates(ctx, ff_all_samplerates());