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