summaryrefslogtreecommitdiff
path: root/libavfilter/vf_pp.c (plain)
blob: bac1d53356fb18d1efcf6f2414908edfe61fd75b
1/*
2 * Copyright (c) 2002 A'rpi
3 * Copyright (C) 2012 Clément Bœsch
4 *
5 * This file is part of FFmpeg.
6 *
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.
11 *
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.
16 *
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.
20 */
21
22/**
23 * @file
24 * libpostproc filter, ported from MPlayer.
25 */
26
27#include "libavutil/avassert.h"
28#include "libavutil/opt.h"
29#include "internal.h"
30
31#include "libpostproc/postprocess.h"
32
33typedef struct {
34 const AVClass *class;
35 char *subfilters;
36 int mode_id;
37 pp_mode *modes[PP_QUALITY_MAX + 1];
38 void *pp_ctx;
39} PPFilterContext;
40
41#define OFFSET(x) offsetof(PPFilterContext, x)
42#define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM
43static const AVOption pp_options[] = {
44 { "subfilters", "set postprocess subfilters", OFFSET(subfilters), AV_OPT_TYPE_STRING, {.str="de"}, .flags = FLAGS },
45 { NULL }
46};
47
48AVFILTER_DEFINE_CLASS(pp);
49
50static av_cold int pp_init(AVFilterContext *ctx)
51{
52 int i;
53 PPFilterContext *pp = ctx->priv;
54
55 for (i = 0; i <= PP_QUALITY_MAX; i++) {
56 pp->modes[i] = pp_get_mode_by_name_and_quality(pp->subfilters, i);
57 if (!pp->modes[i])
58 return AVERROR_EXTERNAL;
59 }
60 pp->mode_id = PP_QUALITY_MAX;
61 return 0;
62}
63
64static int pp_process_command(AVFilterContext *ctx, const char *cmd, const char *args,
65 char *res, int res_len, int flags)
66{
67 PPFilterContext *pp = ctx->priv;
68
69 if (!strcmp(cmd, "quality")) {
70 pp->mode_id = av_clip(strtol(args, NULL, 10), 0, PP_QUALITY_MAX);
71 return 0;
72 }
73 return AVERROR(ENOSYS);
74}
75
76static int pp_query_formats(AVFilterContext *ctx)
77{
78 static const enum AVPixelFormat pix_fmts[] = {
79 AV_PIX_FMT_YUV420P, AV_PIX_FMT_YUVJ420P,
80 AV_PIX_FMT_YUV422P, AV_PIX_FMT_YUVJ422P,
81 AV_PIX_FMT_YUV411P,
82 AV_PIX_FMT_GBRP,
83 AV_PIX_FMT_YUV444P, AV_PIX_FMT_YUVJ444P,
84 AV_PIX_FMT_YUV440P, AV_PIX_FMT_YUVJ440P,
85 AV_PIX_FMT_GRAY8,
86 AV_PIX_FMT_NONE
87 };
88
89 AVFilterFormats *fmts_list = ff_make_format_list(pix_fmts);
90 if (!fmts_list)
91 return AVERROR(ENOMEM);
92 return ff_set_common_formats(ctx, fmts_list);
93}
94
95static int pp_config_props(AVFilterLink *inlink)
96{
97 int flags = PP_CPU_CAPS_AUTO;
98 PPFilterContext *pp = inlink->dst->priv;
99
100 switch (inlink->format) {
101 case AV_PIX_FMT_GRAY8:
102 case AV_PIX_FMT_YUVJ420P:
103 case AV_PIX_FMT_YUV420P: flags |= PP_FORMAT_420; break;
104 case AV_PIX_FMT_YUVJ422P:
105 case AV_PIX_FMT_YUV422P: flags |= PP_FORMAT_422; break;
106 case AV_PIX_FMT_YUV411P: flags |= PP_FORMAT_411; break;
107 case AV_PIX_FMT_GBRP:
108 case AV_PIX_FMT_YUVJ444P:
109 case AV_PIX_FMT_YUV444P: flags |= PP_FORMAT_444; break;
110 case AV_PIX_FMT_YUVJ440P:
111 case AV_PIX_FMT_YUV440P: flags |= PP_FORMAT_440; break;
112 default: av_assert0(0);
113 }
114
115 pp->pp_ctx = pp_get_context(inlink->w, inlink->h, flags);
116 if (!pp->pp_ctx)
117 return AVERROR(ENOMEM);
118 return 0;
119}
120
121static int pp_filter_frame(AVFilterLink *inlink, AVFrame *inbuf)
122{
123 AVFilterContext *ctx = inlink->dst;
124 PPFilterContext *pp = ctx->priv;
125 AVFilterLink *outlink = ctx->outputs[0];
126 const int aligned_w = FFALIGN(outlink->w, 8);
127 const int aligned_h = FFALIGN(outlink->h, 8);
128 AVFrame *outbuf;
129 int qstride, qp_type;
130 int8_t *qp_table ;
131
132 outbuf = ff_get_video_buffer(outlink, aligned_w, aligned_h);
133 if (!outbuf) {
134 av_frame_free(&inbuf);
135 return AVERROR(ENOMEM);
136 }
137 av_frame_copy_props(outbuf, inbuf);
138 outbuf->width = inbuf->width;
139 outbuf->height = inbuf->height;
140 qp_table = av_frame_get_qp_table(inbuf, &qstride, &qp_type);
141
142 pp_postprocess((const uint8_t **)inbuf->data, inbuf->linesize,
143 outbuf->data, outbuf->linesize,
144 aligned_w, outlink->h,
145 qp_table,
146 qstride,
147 pp->modes[pp->mode_id],
148 pp->pp_ctx,
149 outbuf->pict_type | (qp_type ? PP_PICT_TYPE_QP2 : 0));
150
151 av_frame_free(&inbuf);
152 return ff_filter_frame(outlink, outbuf);
153}
154
155static av_cold void pp_uninit(AVFilterContext *ctx)
156{
157 int i;
158 PPFilterContext *pp = ctx->priv;
159
160 for (i = 0; i <= PP_QUALITY_MAX; i++)
161 pp_free_mode(pp->modes[i]);
162 if (pp->pp_ctx)
163 pp_free_context(pp->pp_ctx);
164}
165
166static const AVFilterPad pp_inputs[] = {
167 {
168 .name = "default",
169 .type = AVMEDIA_TYPE_VIDEO,
170 .config_props = pp_config_props,
171 .filter_frame = pp_filter_frame,
172 },
173 { NULL }
174};
175
176static const AVFilterPad pp_outputs[] = {
177 {
178 .name = "default",
179 .type = AVMEDIA_TYPE_VIDEO,
180 },
181 { NULL }
182};
183
184AVFilter ff_vf_pp = {
185 .name = "pp",
186 .description = NULL_IF_CONFIG_SMALL("Filter video using libpostproc."),
187 .priv_size = sizeof(PPFilterContext),
188 .init = pp_init,
189 .uninit = pp_uninit,
190 .query_formats = pp_query_formats,
191 .inputs = pp_inputs,
192 .outputs = pp_outputs,
193 .process_command = pp_process_command,
194 .priv_class = &pp_class,
195 .flags = AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC,
196};
197
generated by cgit at 2024-05-17 04:12:06 (GMT)