| 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 | |
| 33 | typedef 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 |
| 43 | static const AVOption pp_options[] = { |
| 44 | { "subfilters", "set postprocess subfilters", OFFSET(subfilters), AV_OPT_TYPE_STRING, {.str="de"}, .flags = FLAGS }, |
| 45 | { NULL } |
| 46 | }; |
| 47 | |
| 48 | AVFILTER_DEFINE_CLASS(pp); |
| 49 | |
| 50 | static 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 | |
| 64 | static 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 | |
| 76 | static int pp_query_formats(AVFilterContext *ctx) |
| 77 | { |
| 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, |
| 81 | AV_PIX_FMT_YUV411P, |
| 82 | AV_PIX_FMT_YUV444P, AV_PIX_FMT_YUVJ444P, |
| 83 | AV_PIX_FMT_NONE |
| 84 | }; |
| 85 | ff_set_common_formats(ctx, ff_make_format_list(pix_fmts)); |
| 86 | return 0; |
| 87 | } |
| 88 | |
| 89 | static int pp_config_props(AVFilterLink *inlink) |
| 90 | { |
| 91 | int flags = PP_CPU_CAPS_AUTO; |
| 92 | PPFilterContext *pp = inlink->dst->priv; |
| 93 | |
| 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); |
| 103 | } |
| 104 | |
| 105 | pp->pp_ctx = pp_get_context(inlink->w, inlink->h, flags); |
| 106 | if (!pp->pp_ctx) |
| 107 | return AVERROR(ENOMEM); |
| 108 | return 0; |
| 109 | } |
| 110 | |
| 111 | static int pp_filter_frame(AVFilterLink *inlink, AVFrame *inbuf) |
| 112 | { |
| 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); |
| 118 | AVFrame *outbuf; |
| 119 | int qstride, qp_type; |
| 120 | int8_t *qp_table ; |
| 121 | |
| 122 | outbuf = ff_get_video_buffer(outlink, aligned_w, aligned_h); |
| 123 | if (!outbuf) { |
| 124 | av_frame_free(&inbuf); |
| 125 | return AVERROR(ENOMEM); |
| 126 | } |
| 127 | av_frame_copy_props(outbuf, inbuf); |
| 128 | outbuf->width = inbuf->width; |
| 129 | outbuf->height = inbuf->height; |
| 130 | qp_table = av_frame_get_qp_table(inbuf, &qstride, &qp_type); |
| 131 | |
| 132 | pp_postprocess((const uint8_t **)inbuf->data, inbuf->linesize, |
| 133 | outbuf->data, outbuf->linesize, |
| 134 | aligned_w, outlink->h, |
| 135 | qp_table, |
| 136 | qstride, |
| 137 | pp->modes[pp->mode_id], |
| 138 | pp->pp_ctx, |
| 139 | outbuf->pict_type | (qp_type ? PP_PICT_TYPE_QP2 : 0)); |
| 140 | |
| 141 | av_frame_free(&inbuf); |
| 142 | return ff_filter_frame(outlink, outbuf); |
| 143 | } |
| 144 | |
| 145 | static av_cold void pp_uninit(AVFilterContext *ctx) |
| 146 | { |
| 147 | int i; |
| 148 | PPFilterContext *pp = ctx->priv; |
| 149 | |
| 150 | for (i = 0; i <= PP_QUALITY_MAX; i++) |
| 151 | pp_free_mode(pp->modes[i]); |
| 152 | if (pp->pp_ctx) |
| 153 | pp_free_context(pp->pp_ctx); |
| 154 | } |
| 155 | |
| 156 | static const AVFilterPad pp_inputs[] = { |
| 157 | { |
| 158 | .name = "default", |
| 159 | .type = AVMEDIA_TYPE_VIDEO, |
| 160 | .config_props = pp_config_props, |
| 161 | .filter_frame = pp_filter_frame, |
| 162 | }, |
| 163 | { NULL } |
| 164 | }; |
| 165 | |
| 166 | static const AVFilterPad pp_outputs[] = { |
| 167 | { |
| 168 | .name = "default", |
| 169 | .type = AVMEDIA_TYPE_VIDEO, |
| 170 | }, |
| 171 | { NULL } |
| 172 | }; |
| 173 | |
| 174 | AVFilter ff_vf_pp = { |
| 175 | .name = "pp", |
| 176 | .description = NULL_IF_CONFIG_SMALL("Filter video using libpostproc."), |
| 177 | .priv_size = sizeof(PPFilterContext), |
| 178 | .init = pp_init, |
| 179 | .uninit = pp_uninit, |
| 180 | .query_formats = pp_query_formats, |
| 181 | .inputs = pp_inputs, |
| 182 | .outputs = pp_outputs, |
| 183 | .process_command = pp_process_command, |
| 184 | .priv_class = &pp_class, |
| 185 | .flags = AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC, |
| 186 | }; |