static int query_formats(AVFilterContext *ctx)
{
AVFilterFormats *formats = NULL;
AConvertContext *aconvert = ctx->priv;
AVFilterLink *inlink = ctx->inputs[0];
AVFilterLink *outlink = ctx->outputs[0];
AVFilterChannelLayouts *layouts;
ff_formats_ref(avfilter_make_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),
&outlink->in_formats);
ff_channel_layouts_ref(ff_all_channel_layouts(),
&inlink->out_channel_layouts);
if (aconvert->out_chlayout != 0) {
layouts = NULL;
ff_add_channel_layout(&layouts, aconvert->out_chlayout);
ff_channel_layouts_ref(layouts, &outlink->in_channel_layouts);
} else
ff_channel_layouts_ref(ff_all_channel_layouts(),
&outlink->in_channel_layouts);
return 0;
}
int avfilter_default_query_formats(AVFilterContext *ctx)
{
avfilter_set_common_pixel_formats(ctx, avfilter_make_all_formats(AVMEDIA_TYPE_VIDEO));
avfilter_set_common_sample_formats(ctx, avfilter_make_all_formats(AVMEDIA_TYPE_AUDIO));
avfilter_set_common_channel_layouts(ctx, avfilter_make_all_channel_layouts());
avfilter_set_common_packing_formats(ctx, avfilter_make_all_packing_formats());
return 0;
}
static int filter_query_formats(AVFilterContext *ctx)
{
int ret;
AVFilterFormats *formats;
AVFilterChannelLayouts *chlayouts;
AVFilterFormats *samplerates;
enum AVMediaType type = ctx->inputs && ctx->inputs [0] ? ctx->inputs [0]->type :
ctx->outputs && ctx->outputs[0] ? ctx->outputs[0]->type :
AVMEDIA_TYPE_VIDEO;
if ((ret = ctx->filter->query_formats(ctx)) < 0)
return ret;
formats = avfilter_make_all_formats(type);
if (!formats)
return AVERROR(ENOMEM);
ff_set_common_formats(ctx, formats);
if (type == AVMEDIA_TYPE_AUDIO) {
samplerates = ff_all_samplerates();
if (!samplerates)
return AVERROR(ENOMEM);
ff_set_common_samplerates(ctx, samplerates);
chlayouts = ff_all_channel_layouts();
if (!chlayouts)
return AVERROR(ENOMEM);
ff_set_common_channel_layouts(ctx, chlayouts);
}
return 0;
}
