| /* |
| * Filter layer - default implementations |
| * Copyright (c) 2007 Bobby Bingham |
| * |
| * This file is part of FFmpeg. |
| * |
| * FFmpeg is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU Lesser General Public |
| * License as published by the Free Software Foundation; either |
| * version 2.1 of the License, or (at your option) any later version. |
| * |
| * FFmpeg is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| * Lesser General Public License for more details. |
| * |
| * You should have received a copy of the GNU Lesser General Public |
| * License along with FFmpeg; if not, write to the Free Software |
| * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
| */ |
| |
| #include "libavutil/avassert.h" |
| #include "libavutil/audioconvert.h" |
| #include "libavutil/imgutils.h" |
| #include "libavutil/samplefmt.h" |
| |
| #include "avfilter.h" |
| #include "internal.h" |
| #include "formats.h" |
| |
| static void set_common_formats(AVFilterContext *ctx, AVFilterFormats *fmts, |
| enum AVMediaType type, int offin, int offout) |
| { |
| int i; |
| for (i = 0; i < ctx->input_count; i++) |
| if (ctx->inputs[i] && ctx->inputs[i]->type == type) |
| avfilter_formats_ref(fmts, |
| (AVFilterFormats **)((uint8_t *)ctx->inputs[i]+offout)); |
| |
| for (i = 0; i < ctx->output_count; i++) |
| if (ctx->outputs[i] && ctx->outputs[i]->type == type) |
| avfilter_formats_ref(fmts, |
| (AVFilterFormats **)((uint8_t *)ctx->outputs[i]+offin)); |
| |
| if (!fmts->refcount) { |
| av_free(fmts->formats); |
| av_free(fmts->refs); |
| av_free(fmts); |
| } |
| } |
| |
| void avfilter_set_common_pixel_formats(AVFilterContext *ctx, AVFilterFormats *formats) |
| { |
| set_common_formats(ctx, formats, AVMEDIA_TYPE_VIDEO, |
| offsetof(AVFilterLink, in_formats), |
| offsetof(AVFilterLink, out_formats)); |
| } |
| |
| void avfilter_set_common_sample_formats(AVFilterContext *ctx, AVFilterFormats *formats) |
| { |
| set_common_formats(ctx, formats, AVMEDIA_TYPE_AUDIO, |
| offsetof(AVFilterLink, in_formats), |
| offsetof(AVFilterLink, out_formats)); |
| } |
| |
| void avfilter_set_common_channel_layouts(AVFilterContext *ctx, AVFilterFormats *formats) |
| { |
| set_common_formats(ctx, formats, AVMEDIA_TYPE_AUDIO, |
| offsetof(AVFilterLink, in_channel_layouts), |
| offsetof(AVFilterLink, out_channel_layouts)); |
| } |
| |
| #if FF_API_PACKING |
| void avfilter_set_common_packing_formats(AVFilterContext *ctx, AVFilterFormats *formats) |
| { |
| set_common_formats(ctx, formats, AVMEDIA_TYPE_AUDIO, |
| offsetof(AVFilterLink, in_packing), |
| offsetof(AVFilterLink, out_packing)); |
| } |
| #endif |