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https://github.com/FFmpeg/FFmpeg.git
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790f793844
There are lots of files that don't need it: The number of object files that actually need it went down from 2011 to 884 here. Keep it for external users in order to not cause breakages. Also improve the other headers a bit while just at it. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
127 lines
3.7 KiB
C
127 lines
3.7 KiB
C
/*
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* Copyright (c) 2009 Stefano Sabatini
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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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/**
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* @file
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* pixdesc test filter
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*/
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#include "libavutil/common.h"
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#include "libavutil/mem.h"
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#include "libavutil/pixdesc.h"
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#include "avfilter.h"
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#include "internal.h"
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#include "video.h"
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typedef struct PixdescTestContext {
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const AVPixFmtDescriptor *pix_desc;
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uint32_t *line;
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} PixdescTestContext;
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static av_cold void uninit(AVFilterContext *ctx)
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{
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PixdescTestContext *priv = ctx->priv;
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av_freep(&priv->line);
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}
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static int config_props(AVFilterLink *inlink)
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{
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PixdescTestContext *priv = inlink->dst->priv;
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priv->pix_desc = av_pix_fmt_desc_get(inlink->format);
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av_freep(&priv->line);
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if (!(priv->line = av_malloc_array(sizeof(*priv->line), inlink->w)))
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return AVERROR(ENOMEM);
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return 0;
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}
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static int filter_frame(AVFilterLink *inlink, AVFrame *in)
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{
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PixdescTestContext *priv = inlink->dst->priv;
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AVFilterLink *outlink = inlink->dst->outputs[0];
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AVFrame *out;
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int i, c, w = inlink->w, h = inlink->h;
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const int cw = AV_CEIL_RSHIFT(w, priv->pix_desc->log2_chroma_w);
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const int ch = AV_CEIL_RSHIFT(h, priv->pix_desc->log2_chroma_h);
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out = ff_get_video_buffer(outlink, outlink->w, outlink->h);
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if (!out) {
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av_frame_free(&in);
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return AVERROR(ENOMEM);
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}
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av_frame_copy_props(out, in);
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for (i = 0; i < 4; i++) {
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const int h1 = i == 1 || i == 2 ? ch : h;
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if (out->data[i]) {
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uint8_t *data = out->data[i] +
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(out->linesize[i] > 0 ? 0 : out->linesize[i] * (h1-1));
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memset(data, 0, FFABS(out->linesize[i]) * h1);
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}
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}
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/* copy palette */
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if (priv->pix_desc->flags & AV_PIX_FMT_FLAG_PAL)
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memcpy(out->data[1], in->data[1], AVPALETTE_SIZE);
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for (c = 0; c < priv->pix_desc->nb_components; c++) {
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const int w1 = c == 1 || c == 2 ? cw : w;
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const int h1 = c == 1 || c == 2 ? ch : h;
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for (i = 0; i < h1; i++) {
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av_read_image_line2(priv->line,
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(void*)in->data,
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in->linesize,
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priv->pix_desc,
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0, i, c, w1, 0, 4);
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av_write_image_line2(priv->line,
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out->data,
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out->linesize,
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priv->pix_desc,
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0, i, c, w1, 4);
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}
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}
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av_frame_free(&in);
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return ff_filter_frame(outlink, out);
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}
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static const AVFilterPad avfilter_vf_pixdesctest_inputs[] = {
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{
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.name = "default",
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.type = AVMEDIA_TYPE_VIDEO,
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.filter_frame = filter_frame,
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.config_props = config_props,
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},
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};
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const AVFilter ff_vf_pixdesctest = {
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.name = "pixdesctest",
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.description = NULL_IF_CONFIG_SMALL("Test pixel format definitions."),
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.priv_size = sizeof(PixdescTestContext),
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.uninit = uninit,
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FILTER_INPUTS(avfilter_vf_pixdesctest_inputs),
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FILTER_OUTPUTS(ff_video_default_filterpad),
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};
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