1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950515253545556575859606162636465666768697071727374757677787980 |
- /*
- * 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
|