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/*
* 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)
ff_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)
ff_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
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