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4349 | Serge | 1 | /* |
2 | * Copyright (c) 2013 Paul B Mahol |
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3 | * |
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4 | * This file is part of FFmpeg. |
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5 | * |
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6 | * FFmpeg is free software; you can redistribute it and/or |
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7 | * modify it under the terms of the GNU Lesser General Public |
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8 | * License as published by the Free Software Foundation; either |
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9 | * version 2.1 of the License, or (at your option) any later version. |
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10 | * |
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11 | * FFmpeg is distributed in the hope that it will be useful, |
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12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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14 | * Lesser General Public License for more details. |
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15 | * |
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16 | * You should have received a copy of the GNU Lesser General Public |
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17 | * License along with FFmpeg; if not, write to the Free Software |
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18 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
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19 | */ |
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20 | |||
21 | #include "libavutil/avassert.h" |
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22 | #include "libavutil/avstring.h" |
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23 | #include "libavutil/imgutils.h" |
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24 | #include "libavutil/opt.h" |
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25 | #include "libavutil/pixdesc.h" |
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26 | #include "avfilter.h" |
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27 | #include "internal.h" |
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28 | #include "framesync.h" |
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29 | |||
30 | typedef struct InputParam { |
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31 | int depth[4]; |
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32 | int nb_planes; |
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33 | int planewidth[4]; |
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34 | int planeheight[4]; |
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35 | } InputParam; |
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36 | |||
37 | typedef struct MergePlanesContext { |
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38 | const AVClass *class; |
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39 | int64_t mapping; |
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40 | const enum AVPixelFormat out_fmt; |
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41 | int nb_inputs; |
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42 | int nb_planes; |
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43 | int planewidth[4]; |
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44 | int planeheight[4]; |
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45 | int map[4][2]; |
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46 | const AVPixFmtDescriptor *outdesc; |
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47 | |||
48 | FFFrameSync fs; |
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49 | FFFrameSyncIn fsin[3]; /* must be immediately after fs */ |
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50 | } MergePlanesContext; |
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51 | |||
52 | #define OFFSET(x) offsetof(MergePlanesContext, x) |
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53 | #define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM |
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54 | static const AVOption mergeplanes_options[] = { |
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55 | { "mapping", "set input to output plane mapping", OFFSET(mapping), AV_OPT_TYPE_INT, {.i64=0}, 0, 0x33333333, FLAGS }, |
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56 | { "format", "set output pixel format", OFFSET(out_fmt), AV_OPT_TYPE_PIXEL_FMT, {.i64=AV_PIX_FMT_YUVA444P}, .flags=FLAGS }, |
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57 | { NULL } |
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58 | }; |
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59 | |||
60 | AVFILTER_DEFINE_CLASS(mergeplanes); |
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61 | |||
62 | static int filter_frame(AVFilterLink *inlink, AVFrame *in) |
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63 | { |
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64 | MergePlanesContext *s = inlink->dst->priv; |
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65 | return ff_framesync_filter_frame(&s->fs, inlink, in); |
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66 | } |
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67 | |||
68 | static av_cold int init(AVFilterContext *ctx) |
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69 | { |
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70 | MergePlanesContext *s = ctx->priv; |
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71 | int64_t m = s->mapping; |
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72 | int i, ret; |
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73 | |||
74 | s->outdesc = av_pix_fmt_desc_get(s->out_fmt); |
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75 | if (!(s->outdesc->flags & AV_PIX_FMT_FLAG_PLANAR) || |
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76 | s->outdesc->nb_components < 2) { |
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77 | av_log(ctx, AV_LOG_ERROR, "Only planar formats with more than one component are supported.\n"); |
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78 | return AVERROR(EINVAL); |
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79 | } |
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80 | s->nb_planes = av_pix_fmt_count_planes(s->out_fmt); |
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81 | |||
82 | for (i = s->nb_planes - 1; i >= 0; i--) { |
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83 | s->map[i][0] = m & 0xf; |
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84 | m >>= 4; |
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85 | s->map[i][1] = m & 0xf; |
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86 | m >>= 4; |
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87 | |||
88 | if (s->map[i][0] > 3 || s->map[i][1] > 3) { |
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89 | av_log(ctx, AV_LOG_ERROR, "Mapping with out of range input and/or plane number.\n"); |
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90 | return AVERROR(EINVAL); |
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91 | } |
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92 | |||
93 | s->nb_inputs = FFMAX(s->nb_inputs, s->map[i][1] + 1); |
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94 | } |
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95 | |||
96 | av_assert0(s->nb_inputs && s->nb_inputs <= 4); |
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97 | |||
98 | for (i = 0; i < s->nb_inputs; i++) { |
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99 | AVFilterPad pad = { 0 }; |
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100 | |||
101 | pad.type = AVMEDIA_TYPE_VIDEO; |
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102 | pad.name = av_asprintf("in%d", i); |
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103 | if (!pad.name) |
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104 | return AVERROR(ENOMEM); |
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105 | pad.filter_frame = filter_frame; |
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106 | |||
107 | if ((ret = ff_insert_inpad(ctx, i, &pad)) < 0){ |
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108 | av_freep(&pad.name); |
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109 | return ret; |
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110 | } |
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111 | } |
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112 | |||
113 | return 0; |
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114 | } |
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115 | |||
116 | static int query_formats(AVFilterContext *ctx) |
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117 | { |
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118 | MergePlanesContext *s = ctx->priv; |
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119 | AVFilterFormats *formats = NULL; |
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120 | int i; |
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121 | |||
122 | s->outdesc = av_pix_fmt_desc_get(s->out_fmt); |
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123 | for (i = 0; i < AV_PIX_FMT_NB; i++) { |
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124 | const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(i); |
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125 | if (desc->comp[0].depth_minus1 == s->outdesc->comp[0].depth_minus1 && |
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126 | av_pix_fmt_count_planes(i) == desc->nb_components) |
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127 | ff_add_format(&formats, i); |
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128 | } |
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129 | |||
130 | for (i = 0; i < s->nb_inputs; i++) |
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131 | ff_formats_ref(formats, &ctx->inputs[i]->out_formats); |
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132 | |||
133 | formats = NULL; |
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134 | ff_add_format(&formats, s->out_fmt); |
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135 | ff_formats_ref(formats, &ctx->outputs[0]->in_formats); |
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136 | |||
137 | return 0; |
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138 | } |
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139 | |||
140 | static int process_frame(FFFrameSync *fs) |
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141 | { |
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142 | AVFilterContext *ctx = fs->parent; |
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143 | AVFilterLink *outlink = ctx->outputs[0]; |
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144 | MergePlanesContext *s = fs->opaque; |
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145 | AVFrame *in[4] = { NULL }; |
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146 | AVFrame *out; |
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147 | int i, ret; |
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148 | |||
149 | for (i = 0; i < s->nb_inputs; i++) { |
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150 | if ((ret = ff_framesync_get_frame(&s->fs, i, &in[i], 0)) < 0) |
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151 | return ret; |
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152 | } |
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153 | |||
154 | out = ff_get_video_buffer(outlink, outlink->w, outlink->h); |
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155 | if (!out) |
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156 | return AVERROR(ENOMEM); |
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157 | out->pts = av_rescale_q(s->fs.pts, s->fs.time_base, outlink->time_base); |
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158 | |||
159 | for (i = 0; i < s->nb_planes; i++) { |
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160 | const int input = s->map[i][1]; |
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161 | const int plane = s->map[i][0]; |
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162 | |||
163 | av_image_copy_plane(out->data[i], out->linesize[i], |
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164 | in[input]->data[plane], in[input]->linesize[plane], |
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165 | s->planewidth[i], s->planeheight[i]); |
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166 | } |
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167 | |||
168 | return ff_filter_frame(outlink, out); |
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169 | } |
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170 | |||
171 | static int config_output(AVFilterLink *outlink) |
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172 | { |
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173 | AVFilterContext *ctx = outlink->src; |
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174 | MergePlanesContext *s = ctx->priv; |
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175 | InputParam inputsp[4]; |
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176 | FFFrameSyncIn *in; |
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177 | int i; |
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178 | |||
179 | ff_framesync_init(&s->fs, ctx, s->nb_inputs); |
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180 | in = s->fs.in; |
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181 | s->fs.opaque = s; |
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182 | s->fs.on_event = process_frame; |
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183 | |||
184 | outlink->w = ctx->inputs[0]->w; |
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185 | outlink->h = ctx->inputs[0]->h; |
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186 | outlink->time_base = ctx->inputs[0]->time_base; |
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187 | outlink->frame_rate = ctx->inputs[0]->frame_rate; |
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188 | outlink->sample_aspect_ratio = ctx->inputs[0]->sample_aspect_ratio; |
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189 | |||
190 | s->planewidth[1] = |
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191 | s->planewidth[2] = FF_CEIL_RSHIFT(outlink->w, s->outdesc->log2_chroma_w); |
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192 | s->planewidth[0] = |
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193 | s->planewidth[3] = outlink->w; |
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194 | s->planeheight[1] = |
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195 | s->planeheight[2] = FF_CEIL_RSHIFT(outlink->h, s->outdesc->log2_chroma_h); |
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196 | s->planeheight[0] = |
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197 | s->planeheight[3] = outlink->h; |
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198 | |||
199 | for (i = 0; i < s->nb_inputs; i++) { |
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200 | InputParam *inputp = &inputsp[i]; |
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201 | AVFilterLink *inlink = ctx->inputs[i]; |
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202 | const AVPixFmtDescriptor *indesc = av_pix_fmt_desc_get(inlink->format); |
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203 | int j; |
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204 | |||
205 | if (outlink->sample_aspect_ratio.num != inlink->sample_aspect_ratio.num || |
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206 | outlink->sample_aspect_ratio.den != inlink->sample_aspect_ratio.den) { |
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207 | av_log(ctx, AV_LOG_ERROR, "input #%d link %s SAR %d:%d " |
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208 | "does not match output link %s SAR %d:%d\n", |
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209 | i, ctx->input_pads[i].name, |
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210 | inlink->sample_aspect_ratio.num, |
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211 | inlink->sample_aspect_ratio.den, |
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212 | ctx->output_pads[0].name, |
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213 | outlink->sample_aspect_ratio.num, |
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214 | outlink->sample_aspect_ratio.den); |
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215 | return AVERROR(EINVAL); |
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216 | } |
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217 | |||
218 | inputp->planewidth[1] = |
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219 | inputp->planewidth[2] = FF_CEIL_RSHIFT(inlink->w, indesc->log2_chroma_w); |
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220 | inputp->planewidth[0] = |
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221 | inputp->planewidth[3] = inlink->w; |
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222 | inputp->planeheight[1] = |
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223 | inputp->planeheight[2] = FF_CEIL_RSHIFT(inlink->h, indesc->log2_chroma_h); |
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224 | inputp->planeheight[0] = |
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225 | inputp->planeheight[3] = inlink->h; |
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226 | inputp->nb_planes = av_pix_fmt_count_planes(inlink->format); |
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227 | |||
228 | for (j = 0; j < inputp->nb_planes; j++) |
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229 | inputp->depth[j] = indesc->comp[j].depth_minus1 + 1; |
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230 | |||
231 | in[i].time_base = inlink->time_base; |
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232 | in[i].sync = 1; |
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233 | in[i].before = EXT_STOP; |
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234 | in[i].after = EXT_STOP; |
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235 | } |
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236 | |||
237 | for (i = 0; i < s->nb_planes; i++) { |
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238 | const int input = s->map[i][1]; |
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239 | const int plane = s->map[i][0]; |
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240 | InputParam *inputp = &inputsp[input]; |
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241 | |||
242 | if (plane + 1 > inputp->nb_planes) { |
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243 | av_log(ctx, AV_LOG_ERROR, "input %d does not have %d plane\n", |
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244 | input, plane); |
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245 | goto fail; |
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246 | } |
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247 | if (s->outdesc->comp[i].depth_minus1 + 1 != inputp->depth[plane]) { |
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248 | av_log(ctx, AV_LOG_ERROR, "output plane %d depth %d does not " |
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249 | "match input %d plane %d depth %d\n", |
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250 | i, s->outdesc->comp[i].depth_minus1 + 1, |
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251 | input, plane, inputp->depth[plane]); |
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252 | goto fail; |
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253 | } |
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254 | if (s->planewidth[i] != inputp->planewidth[plane]) { |
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255 | av_log(ctx, AV_LOG_ERROR, "output plane %d width %d does not " |
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256 | "match input %d plane %d width %d\n", |
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257 | i, s->planewidth[i], |
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258 | input, plane, inputp->planewidth[plane]); |
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259 | goto fail; |
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260 | } |
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261 | if (s->planeheight[i] != inputp->planeheight[plane]) { |
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262 | av_log(ctx, AV_LOG_ERROR, "output plane %d height %d does not " |
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263 | "match input %d plane %d height %d\n", |
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264 | i, s->planeheight[i], |
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265 | input, plane, inputp->planeheight[plane]); |
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266 | goto fail; |
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267 | } |
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268 | } |
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269 | |||
270 | return ff_framesync_configure(&s->fs); |
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271 | fail: |
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272 | return AVERROR(EINVAL); |
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273 | } |
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274 | |||
275 | static int request_frame(AVFilterLink *outlink) |
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276 | { |
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277 | MergePlanesContext *s = outlink->src->priv; |
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278 | return ff_framesync_request_frame(&s->fs, outlink); |
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279 | } |
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280 | |||
281 | static av_cold void uninit(AVFilterContext *ctx) |
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282 | { |
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283 | MergePlanesContext *s = ctx->priv; |
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284 | int i; |
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285 | |||
286 | ff_framesync_uninit(&s->fs); |
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287 | |||
288 | for (i = 0; i < ctx->nb_inputs; i++) |
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289 | av_freep(&ctx->input_pads[i].name); |
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290 | } |
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291 | |||
292 | static const AVFilterPad mergeplanes_outputs[] = { |
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293 | { |
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294 | .name = "default", |
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295 | .type = AVMEDIA_TYPE_VIDEO, |
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296 | .config_props = config_output, |
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297 | .request_frame = request_frame, |
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298 | }, |
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299 | { NULL } |
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300 | }; |
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301 | |||
302 | AVFilter avfilter_vf_mergeplanes = { |
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303 | .name = "mergeplanes", |
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304 | .description = NULL_IF_CONFIG_SMALL("Merge planes."), |
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305 | .priv_size = sizeof(MergePlanesContext), |
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306 | .priv_class = &mergeplanes_class, |
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307 | .init = init, |
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308 | .uninit = uninit, |
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309 | .query_formats = query_formats, |
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310 | .inputs = NULL, |
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311 | .outputs = mergeplanes_outputs, |
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312 | .flags = AVFILTER_FLAG_DYNAMIC_INPUTS, |
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313 | };>>>>>>>>>>>=>> |