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"
37 pp_mode *modes[PP_QUALITY_MAX + 1];
41 #define OFFSET(x) offsetof(PPFilterContext, x)
42 #define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM
43 static const AVOption pp_options[] = {
44 { "subfilters", "set postprocess subfilters", OFFSET(subfilters), AV_OPT_TYPE_STRING, {.str="de"}, .flags = FLAGS },
48 AVFILTER_DEFINE_CLASS(pp);
50 static av_cold int pp_init(AVFilterContext *ctx)
53 PPFilterContext *pp = ctx->priv;
55 for (i = 0; i <= PP_QUALITY_MAX; i++) {
56 pp->modes[i] = pp_get_mode_by_name_and_quality(pp->subfilters, i);
58 return AVERROR_EXTERNAL;
60 pp->mode_id = PP_QUALITY_MAX;
64 static int pp_process_command(AVFilterContext *ctx, const char *cmd, const char *args,
65 char *res, int res_len, int flags)
67 PPFilterContext *pp = ctx->priv;
69 if (!strcmp(cmd, "quality")) {
70 pp->mode_id = av_clip(strtol(args, NULL, 10), 0, PP_QUALITY_MAX);
73 return AVERROR(ENOSYS);
76 static int pp_query_formats(AVFilterContext *ctx)
78 static const enum PixelFormat pix_fmts[] = {
79 AV_PIX_FMT_YUV420P, AV_PIX_FMT_YUVJ420P,
80 AV_PIX_FMT_YUV422P, AV_PIX_FMT_YUVJ422P,
82 AV_PIX_FMT_YUV444P, AV_PIX_FMT_YUVJ444P,
85 ff_set_common_formats(ctx, ff_make_format_list(pix_fmts));
89 static int pp_config_props(AVFilterLink *inlink)
91 int flags = PP_CPU_CAPS_AUTO;
92 PPFilterContext *pp = inlink->dst->priv;
94 switch (inlink->format) {
95 case AV_PIX_FMT_YUVJ420P:
96 case AV_PIX_FMT_YUV420P: flags |= PP_FORMAT_420; break;
97 case AV_PIX_FMT_YUVJ422P:
98 case AV_PIX_FMT_YUV422P: flags |= PP_FORMAT_422; break;
99 case AV_PIX_FMT_YUV411P: flags |= PP_FORMAT_411; break;
100 case AV_PIX_FMT_YUVJ444P:
101 case AV_PIX_FMT_YUV444P: flags |= PP_FORMAT_444; break;
102 default: av_assert0(0);
105 pp->pp_ctx = pp_get_context(inlink->w, inlink->h, flags);
107 return AVERROR(ENOMEM);
111 static int pp_filter_frame(AVFilterLink *inlink, AVFrame *inbuf)
113 AVFilterContext *ctx = inlink->dst;
114 PPFilterContext *pp = ctx->priv;
115 AVFilterLink *outlink = ctx->outputs[0];
116 const int aligned_w = FFALIGN(outlink->w, 8);
117 const int aligned_h = FFALIGN(outlink->h, 8);
119 int qstride, qp_type;
122 outbuf = ff_get_video_buffer(outlink, aligned_w, aligned_h);
124 av_frame_free(&inbuf);
125 return AVERROR(ENOMEM);
127 av_frame_copy_props(outbuf, inbuf);
128 qp_table = av_frame_get_qp_table(inbuf, &qstride, &qp_type);
130 pp_postprocess((const uint8_t **)inbuf->data, inbuf->linesize,
131 outbuf->data, outbuf->linesize,
132 aligned_w, outlink->h,
135 pp->modes[pp->mode_id],
137 outbuf->pict_type | (qp_type ? PP_PICT_TYPE_QP2 : 0));
139 av_frame_free(&inbuf);
140 return ff_filter_frame(outlink, outbuf);
143 static av_cold void pp_uninit(AVFilterContext *ctx)
146 PPFilterContext *pp = ctx->priv;
148 for (i = 0; i <= PP_QUALITY_MAX; i++)
149 pp_free_mode(pp->modes[i]);
151 pp_free_context(pp->pp_ctx);
154 static const AVFilterPad pp_inputs[] = {
157 .type = AVMEDIA_TYPE_VIDEO,
158 .config_props = pp_config_props,
159 .filter_frame = pp_filter_frame,
164 static const AVFilterPad pp_outputs[] = {
167 .type = AVMEDIA_TYPE_VIDEO,
172 AVFilter avfilter_vf_pp = {
174 .description = NULL_IF_CONFIG_SMALL("Filter video using libpostproc."),
175 .priv_size = sizeof(PPFilterContext),
178 .query_formats = pp_query_formats,
180 .outputs = pp_outputs,
181 .process_command = pp_process_command,
182 .priv_class = &pp_class,