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af_aresample: support all swresample parameters. 

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2012-05-17 13:10:14 +02:00
parent 47c2e52bc6
commit e3c6b61263
1 changed files with 24 additions and 6 deletions
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30
libavfilter/af_aresample.c
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@ -24,6 +24,8 @@
* resampling audio filter
*/
#include "libavutil/avstring.h"
#include "libavutil/opt.h"
#include "libswresample/swresample.h"
#include "avfilter.h"
#include "audio.h"
@ -38,16 +40,33 @@ typedef struct {
static av_cold int init(AVFilterContext *ctx, const char *args, void *opaque)
{
AResampleContext *aresample = ctx->priv;
int ret;
int ret = 0;
char *argd = av_strdup(args);
aresample->swr = swr_alloc();
if (!aresample->swr)
return AVERROR(ENOMEM);
if (args) {
if ((ret = ff_parse_sample_rate(&aresample->out_rate, args, ctx)) < 0)
return ret;
char *ptr=argd, *token;
while(token = av_strtok(ptr, ":", &ptr)) {
char *value;
av_strtok(token, "=", &value);
if(value) {
if((ret=av_opt_set(aresample->swr, token, value, 0)) < 0)
goto end;
} else if ((ret = ff_parse_sample_rate(&aresample->out_rate, token, ctx)) < 0)
goto end;
}
} else {
aresample->out_rate = -1;
}
return 0;
end:
av_free(argd);
return ret;
}
static av_cold void uninit(AVFilterContext *ctx)
@ -105,7 +124,6 @@ static int config_output(AVFilterLink *outlink)
outlink->sample_rate = aresample->out_rate;
outlink->time_base = (AVRational) {1, aresample->out_rate};
//TODO: make the resampling parameters (filter size, phrase shift, linear, cutoff) configurable
aresample->swr = swr_alloc_set_opts(aresample->swr,
outlink->channel_layout, outlink->format, outlink->sample_rate,
inlink->channel_layout, inlink->format, inlink->sample_rate,