* sample format and channel layout conversion audio filter
*/
+#include "libavutil/audioconvert.h"
#include "libavutil/avstring.h"
#include "libswresample/swresample.h"
#include "avfilter.h"
struct SwrContext *swr;
} AConvertContext;
-static av_cold int init(AVFilterContext *ctx, const char *args0, void *opaque)
+static av_cold int init(AVFilterContext *ctx, const char *args0)
{
AConvertContext *aconvert = ctx->priv;
char *arg, *ptr = NULL;
AVFilterLink *outlink = ctx->outputs[0];
AVFilterChannelLayouts *layouts;
- ff_formats_ref(avfilter_make_all_formats(AVMEDIA_TYPE_AUDIO),
+ ff_formats_ref(ff_all_formats(AVMEDIA_TYPE_AUDIO),
&inlink->out_formats);
if (aconvert->out_sample_fmt != AV_SAMPLE_FMT_NONE) {
formats = NULL;
ff_add_format(&formats, aconvert->out_sample_fmt);
ff_formats_ref(formats, &outlink->in_formats);
} else
- ff_formats_ref(avfilter_make_all_formats(AVMEDIA_TYPE_AUDIO),
+ ff_formats_ref(ff_all_formats(AVMEDIA_TYPE_AUDIO),
&outlink->in_formats);
ff_channel_layouts_ref(ff_all_channel_layouts(),
-1, inlink ->channel_layout);
av_get_channel_layout_string(buf2, sizeof(buf2),
-1, outlink->channel_layout);
- av_log(ctx, AV_LOG_INFO,
+ av_log(ctx, AV_LOG_VERBOSE,
"fmt:%s cl:%s -> fmt:%s cl:%s\n",
av_get_sample_fmt_name(inlink ->format), buf1,
av_get_sample_fmt_name(outlink->format), buf2);
return 0;
}
-static void filter_samples(AVFilterLink *inlink, AVFilterBufferRef *insamplesref)
+static int filter_samples(AVFilterLink *inlink, AVFilterBufferRef *insamplesref)
{
AConvertContext *aconvert = inlink->dst->priv;
const int n = insamplesref->audio->nb_samples;
AVFilterLink *const outlink = inlink->dst->outputs[0];
AVFilterBufferRef *outsamplesref = ff_get_audio_buffer(outlink, AV_PERM_WRITE, n);
+ int ret;
swr_convert(aconvert->swr, outsamplesref->data, n,
(void *)insamplesref->data, n);
avfilter_copy_buffer_ref_props(outsamplesref, insamplesref);
outsamplesref->audio->channel_layout = outlink->channel_layout;
- ff_filter_samples(outlink, outsamplesref);
+ ret = ff_filter_samples(outlink, outsamplesref);
avfilter_unref_buffer(insamplesref);
+ return ret;
}
AVFilter avfilter_af_aconvert = {