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 query_formats(AVFilterContext *ctx) { AVFilterFormats *formats = NULL; AConvertContext *aconvert = ctx->priv; AVFilterLink *inlink = ctx->inputs[0]; AVFilterLink *outlink = ctx->outputs[0]; avfilter_formats_ref(avfilter_make_all_formats(AVMEDIA_TYPE_AUDIO), &inlink->out_formats); if (aconvert->out_sample_fmt != AV_SAMPLE_FMT_NONE) { formats = NULL; avfilter_add_format(&formats, aconvert->out_sample_fmt); avfilter_formats_ref(formats, &outlink->in_formats); } else avfilter_formats_ref(avfilter_make_all_formats(AVMEDIA_TYPE_AUDIO), &outlink->in_formats); avfilter_formats_ref(avfilter_make_all_channel_layouts(), &inlink->out_chlayouts); if (aconvert->out_chlayout != 0) { formats = NULL; avfilter_add_format(&formats, aconvert->out_chlayout); avfilter_formats_ref(formats, &outlink->in_chlayouts); } else avfilter_formats_ref(avfilter_make_all_channel_layouts(), &outlink->in_chlayouts); avfilter_formats_ref(avfilter_make_all_packing_formats(), &inlink->out_packing); if (aconvert->out_packing_fmt != -1) { formats = NULL; avfilter_add_format(&formats, aconvert->out_packing_fmt); avfilter_formats_ref(formats, &outlink->in_packing); } else avfilter_formats_ref(avfilter_make_all_packing_formats(), &outlink->in_packing); return 0; }
static int query_formats(AVFilterContext *ctx) { AVFilterFormats *formats = NULL; avfilter_add_format(&formats, AV_SAMPLE_FMT_S16); if (!formats) return AVERROR(ENOMEM); avfilter_set_common_sample_formats(ctx, formats); formats = avfilter_make_all_channel_layouts(); if (!formats) return AVERROR(ENOMEM); avfilter_set_common_channel_layouts(ctx, formats); formats = avfilter_make_all_packing_formats(); if (!formats) return AVERROR(ENOMEM); avfilter_set_common_packing_formats(ctx, formats); return 0; }