2 * Copyright (c) 2002 A'rpi
3 * Copyright (C) 2012 Clément Bœsch
5 * This file is part of FFmpeg.
7 * FFmpeg is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2 of the License, or
10 * (at your option) any later version.
12 * FFmpeg is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
17 * You should have received a copy of the GNU General Public License along
18 * with FFmpeg; if not, write to the Free Software Foundation, Inc.,
19 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
24 * libpostproc filter, ported from MPlayer.
27 #include "libavutil/avassert.h"
28 #include "libavutil/opt.h"
31 #include "libpostproc/postprocess.h"
35 pp_mode *modes[PP_QUALITY_MAX + 1];
39 static av_cold int pp_init(AVFilterContext *ctx, const char *args)
42 PPFilterContext *pp = ctx->priv;
47 for (i = 0; i <= PP_QUALITY_MAX; i++) {
48 pp->modes[i] = pp_get_mode_by_name_and_quality(args, i);
50 return AVERROR_EXTERNAL;
52 pp->mode_id = PP_QUALITY_MAX;
56 static int pp_process_command(AVFilterContext *ctx, const char *cmd, const char *args,
57 char *res, int res_len, int flags)
59 PPFilterContext *pp = ctx->priv;
61 if (!strcmp(cmd, "quality")) {
62 pp->mode_id = av_clip(strtol(args, NULL, 10), 0, PP_QUALITY_MAX);
65 return AVERROR(ENOSYS);
68 static int pp_query_formats(AVFilterContext *ctx)
70 static const enum PixelFormat pix_fmts[] = {
71 AV_PIX_FMT_YUV420P, AV_PIX_FMT_YUVJ420P,
72 AV_PIX_FMT_YUV422P, AV_PIX_FMT_YUVJ422P,
74 AV_PIX_FMT_YUV444P, AV_PIX_FMT_YUVJ444P,
77 ff_set_common_formats(ctx, ff_make_format_list(pix_fmts));
81 static int pp_config_props(AVFilterLink *inlink)
83 int flags = PP_CPU_CAPS_AUTO;
84 PPFilterContext *pp = inlink->dst->priv;
86 switch (inlink->format) {
87 case AV_PIX_FMT_YUVJ420P:
88 case AV_PIX_FMT_YUV420P: flags |= PP_FORMAT_420; break;
89 case AV_PIX_FMT_YUVJ422P:
90 case AV_PIX_FMT_YUV422P: flags |= PP_FORMAT_422; break;
91 case AV_PIX_FMT_YUV411P: flags |= PP_FORMAT_411; break;
92 case AV_PIX_FMT_YUVJ444P:
93 case AV_PIX_FMT_YUV444P: flags |= PP_FORMAT_444; break;
94 default: av_assert0(0);
97 pp->pp_ctx = pp_get_context(inlink->w, inlink->h, flags);
99 return AVERROR(ENOMEM);
103 static int pp_filter_frame(AVFilterLink *inlink, AVFilterBufferRef *inbuf)
105 AVFilterContext *ctx = inlink->dst;
106 PPFilterContext *pp = ctx->priv;
107 AVFilterLink *outlink = ctx->outputs[0];
108 const int aligned_w = FFALIGN(outlink->w, 8);
109 const int aligned_h = FFALIGN(outlink->h, 8);
110 AVFilterBufferRef *outbuf;
112 outbuf = ff_get_video_buffer(outlink, AV_PERM_WRITE, aligned_w, aligned_h);
114 avfilter_unref_buffer(inbuf);
115 return AVERROR(ENOMEM);
117 avfilter_copy_buffer_ref_props(outbuf, inbuf);
119 pp_postprocess((const uint8_t **)inbuf->data, inbuf->linesize,
120 outbuf->data, outbuf->linesize,
121 aligned_w, outlink->h,
122 outbuf->video->qp_table,
123 outbuf->video->qp_table_linesize,
124 pp->modes[pp->mode_id],
126 outbuf->video->pict_type);
128 avfilter_unref_buffer(inbuf);
129 return ff_filter_frame(outlink, outbuf);
132 static av_cold void pp_uninit(AVFilterContext *ctx)
135 PPFilterContext *pp = ctx->priv;
137 for (i = 0; i <= PP_QUALITY_MAX; i++)
138 pp_free_mode(pp->modes[i]);
140 pp_free_context(pp->pp_ctx);
143 static const AVFilterPad pp_inputs[] = {
146 .type = AVMEDIA_TYPE_VIDEO,
147 .config_props = pp_config_props,
148 .filter_frame = pp_filter_frame,
149 .min_perms = AV_PERM_READ,
154 static const AVFilterPad pp_outputs[] = {
157 .type = AVMEDIA_TYPE_VIDEO,
162 AVFilter avfilter_vf_pp = {
164 .description = NULL_IF_CONFIG_SMALL("Filter video using libpostproc."),
165 .priv_size = sizeof(PPFilterContext),
168 .query_formats = pp_query_formats,
170 .outputs = pp_outputs,
171 .process_command = pp_process_command,