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| | 1 | /* |
| | 2 | * Copyright (c) 2023 Zhao Zhili <zhilizhao@tencent.com> |
| | 3 | * |
| | 4 | * This file is part of FFmpeg. |
| | 5 | * |
| | 6 | * FFmpeg is free software; you can redistribute it and/or |
| | 7 | * modify it under the terms of the GNU Lesser General Public |
| | 8 | * License as published by the Free Software Foundation; either |
| | 9 | * version 2.1 of the License, or (at your option) any later version. |
| | 10 | * |
| | 11 | * FFmpeg is distributed in the hope that it will be useful, |
| | 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| | 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| | 14 | * Lesser General Public License for more details. |
| | 15 | * |
| | 16 | * You should have received a copy of the GNU Lesser General Public |
| | 17 | * License along with FFmpeg; if not, write to the Free Software |
| | 18 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
| | 19 | */ |
| | 20 | |
| | 21 | #include <VideoToolbox/VideoToolbox.h> |
| | 22 | |
| | 23 | #include "libavutil/hwcontext.h" |
| | 24 | #include "libavutil/hwcontext_videotoolbox.h" |
| | 25 | #include "libavutil/opt.h" |
| | 26 | #include "libavutil/pixdesc.h" |
| | 27 | #include "internal.h" |
| | 28 | #include "transpose.h" |
| | 29 | |
| | 30 | typedef struct TransposeVtContext { |
| | 31 | AVClass *class; |
| | 32 | |
| | 33 | VTPixelRotationSessionRef session; |
| | 34 | int dir; |
| | 35 | int passthrough; |
| | 36 | } TransposeVtContext; |
| | 37 | |
| | 38 | static av_cold int transpose_vt_init(AVFilterContext *avctx) |
| | 39 | { |
| | 40 | TransposeVtContext *s = avctx->priv; |
| | 41 | int ret; |
| | 42 | |
| | 43 | ret = VTPixelRotationSessionCreate(kCFAllocatorDefault, &s->session); |
| | 44 | if (ret != noErr) { |
| | 45 | av_log(avctx, AV_LOG_ERROR, "Rotation session create failed, %d\n", ret); |
| | 46 | return AVERROR_EXTERNAL; |
| | 47 | } |
| | 48 | |
| | 49 | return 0; |
| | 50 | } |
| | 51 | |
| | 52 | static av_cold void transpose_vt_uninit(AVFilterContext *avctx) |
| | 53 | { |
| | 54 | TransposeVtContext *s = avctx->priv; |
| | 55 | |
| | 56 | if (s->session) { |
| | 57 | VTPixelRotationSessionInvalidate(s->session); |
| | 58 | CFRelease(s->session); |
| | 59 | s->session = NULL; |
| | 60 | } |
| | 61 | } |
| | 62 | |
| | 63 | static int transpose_vt_filter_frame(AVFilterLink *link, AVFrame *in) |
| | 64 | { |
| | 65 | int ret; |
| | 66 | AVFilterContext *ctx = link->dst; |
| | 67 | TransposeVtContext *s = ctx->priv; |
| | 68 | AVFilterLink *outlink = ctx->outputs[0]; |
| | 69 | CVPixelBufferRef src; |
| | 70 | CVPixelBufferRef dst; |
| | 71 | |
| | 72 | if (s->passthrough) |
| | 73 | return ff_filter_frame(outlink, in); |
| | 74 | |
| | 75 | AVFrame *out = ff_get_video_buffer(outlink, outlink->w, outlink->h); |
| | 76 | if (!out) { |
| | 77 | ret = AVERROR(ENOMEM); |
| | 78 | goto fail; |
| | 79 | } |
| | 80 | |
| | 81 | ret = av_frame_copy_props(out, in); |
| | 82 | if (ret < 0) |
| | 83 | goto fail; |
| | 84 | |
| | 85 | src = (CVPixelBufferRef)in->data[3]; |
| | 86 | dst = (CVPixelBufferRef)out->data[3]; |
| | 87 | ret = VTPixelRotationSessionRotateImage(s->session, src, dst); |
| | 88 | if (ret != noErr) { |
| | 89 | av_log(ctx, AV_LOG_ERROR, "transfer image failed, %d\n", ret); |
| | 90 | ret = AVERROR_EXTERNAL; |
| | 91 | goto fail; |
| | 92 | } |
| | 93 | |
| | 94 | av_frame_free(&in); |
| | 95 | |
| | 96 | return ff_filter_frame(outlink, out); |
| | 97 | |
| | 98 | fail: |
| | 99 | av_frame_free(&in); |
| | 100 | av_frame_free(&out); |
| | 101 | return ret; |
| | 102 | } |
| | 103 | |
| | 104 | static int transpose_vt_config_output(AVFilterLink *outlink) |
| | 105 | { |
| | 106 | int err; |
| | 107 | AVFilterContext *avctx = outlink->src; |
| | 108 | TransposeVtContext *s = avctx->priv; |
| | 109 | AVFilterLink *inlink = outlink->src->inputs[0]; |
| | 110 | CFStringRef rotation = kVTRotation_0; |
| | 111 | CFBooleanRef vflip = kCFBooleanFalse; |
| | 112 | CFBooleanRef hflip = kCFBooleanFalse; |
| | 113 | int swap_w_h = 0; |
| | 114 | |
| | 115 | if ((inlink->w >= inlink->h && s->passthrough == TRANSPOSE_PT_TYPE_LANDSCAPE) || |
| | 116 | (inlink->w <= inlink->h && s->passthrough == TRANSPOSE_PT_TYPE_PORTRAIT)) { |
| | 117 | av_log(avctx, AV_LOG_VERBOSE, |
| | 118 | "w:%d h:%d -> w:%d h:%d (passthrough mode)\n", |
| | 119 | inlink->w, inlink->h, inlink->w, inlink->h); |
| | 120 | return 0; |
| | 121 | } |
| | 122 | |
| | 123 | s->passthrough = TRANSPOSE_PT_TYPE_NONE; |
| | 124 | |
| | 125 | switch (s->dir) { |
| | 126 | case TRANSPOSE_CCLOCK_FLIP: |
| | 127 | rotation = kVTRotation_CCW90; |
| | 128 | vflip = kCFBooleanTrue; |
| | 129 | swap_w_h = 1; |
| | 130 | break; |
| | 131 | case TRANSPOSE_CCLOCK: |
| | 132 | rotation = kVTRotation_CCW90; |
| | 133 | swap_w_h = 1; |
| | 134 | break; |
| | 135 | case TRANSPOSE_CLOCK: |
| | 136 | rotation = kVTRotation_CW90; |
| | 137 | swap_w_h = 1; |
| | 138 | break; |
| | 139 | case TRANSPOSE_CLOCK_FLIP: |
| | 140 | rotation = kVTRotation_CW90; |
| | 141 | vflip = kCFBooleanTrue; |
| | 142 | swap_w_h = 1; |
| | 143 | break; |
| | 144 | case TRANSPOSE_REVERSAL: |
| | 145 | rotation = kVTRotation_180; |
| | 146 | break; |
| | 147 | case TRANSPOSE_HFLIP: |
| | 148 | hflip = kCFBooleanTrue; |
| | 149 | break; |
| | 150 | case TRANSPOSE_VFLIP: |
| | 151 | vflip = kCFBooleanTrue; |
| | 152 | break; |
| | 153 | default: |
| | 154 | av_log(avctx, AV_LOG_ERROR, "Failed to set direction to %d\n", s->dir); |
| | 155 | return AVERROR(EINVAL); |
| | 156 | } |
| | 157 | |
| | 158 | err = VTSessionSetProperty(s->session, kVTPixelRotationPropertyKey_Rotation, |
| | 159 | rotation); |
| | 160 | if (err != noErr) { |
| | 161 | av_log(avctx, AV_LOG_ERROR, "Set rotation property failed, %d\n", err); |
| | 162 | return AVERROR_EXTERNAL; |
| | 163 | } |
| | 164 | err = VTSessionSetProperty(s->session, kVTPixelRotationPropertyKey_FlipVerticalOrientation, |
| | 165 | vflip); |
| | 166 | if (err != noErr) { |
| | 167 | av_log(avctx, AV_LOG_ERROR, "Set vertical flip property failed, %d\n", err); |
| | 168 | return AVERROR_EXTERNAL; |
| | 169 | } |
| | 170 | err = VTSessionSetProperty(s->session, kVTPixelRotationPropertyKey_FlipHorizontalOrientation, |
| | 171 | hflip); |
| | 172 | if (err != noErr) { |
| | 173 | av_log(avctx, AV_LOG_ERROR, "Set horizontal flip property failed, %d\n", err); |
| | 174 | return AVERROR_EXTERNAL; |
| | 175 | } |
| | 176 | |
| | 177 | if (swap_w_h) { |
| | 178 | outlink->w = inlink->h; |
| | 179 | outlink->h = inlink->w; |
| | 180 | } |
| | 181 | |
| | 182 | return 0; |
| | 183 | } |
| | 184 | |
| | 185 | #define OFFSET(x) offsetof(TransposeVtContext, x) |
| | 186 | #define FLAGS (AV_OPT_FLAG_FILTERING_PARAM | AV_OPT_FLAG_VIDEO_PARAM) |
| | 187 | static const AVOption transpose_vt_options[] = { |
| | 188 | { "dir", "set transpose direction", |
| | 189 | OFFSET(dir), AV_OPT_TYPE_INT, { .i64 = TRANSPOSE_CCLOCK_FLIP }, 0, 6, FLAGS, "dir" }, |
| | 190 | { "cclock_flip", "rotate counter-clockwise with vertical flip", |
| | 191 | 0, AV_OPT_TYPE_CONST, { .i64 = TRANSPOSE_CCLOCK_FLIP }, .flags=FLAGS, .unit = "dir" }, |
| | 192 | { "clock", "rotate clockwise", |
| | 193 | 0, AV_OPT_TYPE_CONST, { .i64 = TRANSPOSE_CLOCK }, .flags=FLAGS, .unit = "dir" }, |
| | 194 | { "cclock", "rotate counter-clockwise", |
| | 195 | 0, AV_OPT_TYPE_CONST, { .i64 = TRANSPOSE_CCLOCK }, .flags=FLAGS, .unit = "dir" }, |
| | 196 | { "clock_flip", "rotate clockwise with vertical flip", |
| | 197 | 0, AV_OPT_TYPE_CONST, { .i64 = TRANSPOSE_CLOCK_FLIP }, .flags=FLAGS, .unit = "dir" }, |
| | 198 | { "reversal", "rotate by half-turn", |
| | 199 | 0, AV_OPT_TYPE_CONST, { .i64 = TRANSPOSE_REVERSAL }, .flags=FLAGS, .unit = "dir" }, |
| | 200 | { "hflip", "flip horizontally", |
| | 201 | 0, AV_OPT_TYPE_CONST, { .i64 = TRANSPOSE_HFLIP }, .flags=FLAGS, .unit = "dir" }, |
| | 202 | { "vflip", "flip vertically", |
| | 203 | 0, AV_OPT_TYPE_CONST, { .i64 = TRANSPOSE_VFLIP }, .flags=FLAGS, .unit = "dir" }, |
| | 204 | |
| | 205 | { "passthrough", "do not apply transposition if the input matches the specified geometry", |
| | 206 | OFFSET(passthrough), AV_OPT_TYPE_INT, { .i64=TRANSPOSE_PT_TYPE_NONE }, 0, INT_MAX, FLAGS, "passthrough" }, |
| | 207 | { "none", "always apply transposition", |
| | 208 | 0, AV_OPT_TYPE_CONST, { .i64 = TRANSPOSE_PT_TYPE_NONE }, INT_MIN, INT_MAX, FLAGS, "passthrough" }, |
| | 209 | { "portrait", "preserve portrait geometry", |
| | 210 | 0, AV_OPT_TYPE_CONST, { .i64 = TRANSPOSE_PT_TYPE_PORTRAIT }, INT_MIN, INT_MAX, FLAGS, "passthrough" }, |
| | 211 | { "landscape", "preserve landscape geometry", |
| | 212 | 0, AV_OPT_TYPE_CONST, { .i64 = TRANSPOSE_PT_TYPE_LANDSCAPE }, INT_MIN, INT_MAX, FLAGS, "passthrough" }, |
| | 213 | |
| | 214 | { NULL } |
| | 215 | }; |
| | 216 | |
| | 217 | AVFILTER_DEFINE_CLASS(transpose_vt); |
| | 218 | |
| | 219 | static const AVFilterPad transpose_vt_inputs[] = { |
| | 220 | { |
| | 221 | .name = "default", |
| | 222 | .type = AVMEDIA_TYPE_VIDEO, |
| | 223 | .filter_frame = &transpose_vt_filter_frame, |
| | 224 | }, |
| | 225 | }; |
| | 226 | |
| | 227 | static const AVFilterPad transpose_vt_outputs[] = { |
| | 228 | { |
| | 229 | .name = "default", |
| | 230 | .type = AVMEDIA_TYPE_VIDEO, |
| | 231 | .config_props = &transpose_vt_config_output, |
| | 232 | }, |
| | 233 | }; |
| | 234 | |
| | 235 | const AVFilter ff_vf_transpose_vt = { |
| | 236 | .name = "transpose_vt", |
| | 237 | .description = NULL_IF_CONFIG_SMALL("Transpose Videotoolbox frames"), |
| | 238 | .priv_size = sizeof(TransposeVtContext), |
| | 239 | .init = transpose_vt_init, |
| | 240 | .uninit = transpose_vt_uninit, |
| | 241 | FILTER_INPUTS(transpose_vt_inputs), |
| | 242 | FILTER_OUTPUTS(transpose_vt_outputs), |
| | 243 | FILTER_SINGLE_PIXFMT(AV_PIX_FMT_VIDEOTOOLBOX), |
| | 244 | .priv_class = &transpose_vt_class, |
| | 245 | .flags = AVFILTER_FLAG_HWDEVICE, |
| | 246 | }; |