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pan: move query_formats() to avoid forward declarations.

This commit is contained in:
Clément Bœsch 2012-01-23 11:28:47 +01:00 committed by Clément Bœsch
parent 94dc4a5046
commit 66b1b7e5fa
1 changed files with 34 additions and 37 deletions
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71
libavfilter/af_pan.c
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@ -191,9 +191,6 @@ static av_cold int init(AVFilterContext *ctx, const char *args0, void *opaque)
return 0;
}
static void filter_samples_channel_mapping(PanContext *pan, AVFilterBufferRef *outsamples, AVFilterBufferRef *insamples, int n);
static void filter_samples_panning (PanContext *pan, AVFilterBufferRef *outsamples, AVFilterBufferRef *insamples, int n);
static int are_gains_pure(const PanContext *pan)
{
int i, j;
@ -216,40 +213,6 @@ static int are_gains_pure(const PanContext *pan)
return 1;
}
static int query_formats(AVFilterContext *ctx)
{
PanContext *pan = ctx->priv;
AVFilterLink *inlink = ctx->inputs[0];
AVFilterLink *outlink = ctx->outputs[0];
AVFilterFormats *formats;
if (pan->nb_output_channels <= SWR_CH_MAX)
pan->pure_gains = are_gains_pure(pan);
if (pan->pure_gains) {
/* libswr supports any sample and packing formats */
avfilter_set_common_sample_formats(ctx, avfilter_make_all_formats(AVMEDIA_TYPE_AUDIO));
avfilter_set_common_packing_formats(ctx, avfilter_make_all_packing_formats());
pan->filter_samples = filter_samples_channel_mapping;
} else {
const enum AVSampleFormat sample_fmts[] = {AV_SAMPLE_FMT_S16, -1};
const int packing_fmts[] = {AVFILTER_PACKED, -1};
avfilter_set_common_sample_formats (ctx, avfilter_make_format_list(sample_fmts));
avfilter_set_common_packing_formats(ctx, avfilter_make_format_list(packing_fmts));
pan->filter_samples = filter_samples_panning;
}
// inlink supports any channel layout
formats = avfilter_make_all_channel_layouts();
avfilter_formats_ref(formats, &inlink->out_chlayouts);
// outlink supports only requested output channel layout
formats = NULL;
avfilter_add_format(&formats, pan->out_channel_layout);
avfilter_formats_ref(formats, &outlink->in_chlayouts);
return 0;
}
static int config_props(AVFilterLink *link)
{
AVFilterContext *ctx = link->dst;
@ -403,6 +366,40 @@ static void filter_samples(AVFilterLink *inlink, AVFilterBufferRef *insamples)
avfilter_unref_buffer(insamples);
}
static int query_formats(AVFilterContext *ctx)
{
PanContext *pan = ctx->priv;
AVFilterLink *inlink = ctx->inputs[0];
AVFilterLink *outlink = ctx->outputs[0];
AVFilterFormats *formats;
if (pan->nb_output_channels <= SWR_CH_MAX)
pan->pure_gains = are_gains_pure(pan);
if (pan->pure_gains) {
/* libswr supports any sample and packing formats */
avfilter_set_common_sample_formats(ctx, avfilter_make_all_formats(AVMEDIA_TYPE_AUDIO));
avfilter_set_common_packing_formats(ctx, avfilter_make_all_packing_formats());
pan->filter_samples = filter_samples_channel_mapping;
} else {
const enum AVSampleFormat sample_fmts[] = {AV_SAMPLE_FMT_S16, -1};
const int packing_fmts[] = {AVFILTER_PACKED, -1};
avfilter_set_common_sample_formats (ctx, avfilter_make_format_list(sample_fmts));
avfilter_set_common_packing_formats(ctx, avfilter_make_format_list(packing_fmts));
pan->filter_samples = filter_samples_panning;
}
// inlink supports any channel layout
formats = avfilter_make_all_channel_layouts();
avfilter_formats_ref(formats, &inlink->out_chlayouts);
// outlink supports only requested output channel layout
formats = NULL;
avfilter_add_format(&formats, pan->out_channel_layout);
avfilter_formats_ref(formats, &outlink->in_chlayouts);
return 0;
}
static av_cold void uninit(AVFilterContext *ctx)
{
PanContext *pan = ctx->priv;