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1 /*
2  * This file is part of FFmpeg.
3  *
4  * FFmpeg is free software; you can redistribute it and/or
5  * modify it under the terms of the GNU Lesser General Public
6  * License as published by the Free Software Foundation; either
7  * version 2.1 of the License, or (at your option) any later version.
8  *
9  * FFmpeg is distributed in the hope that it will be useful,
10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
12  * Lesser General Public License for more details.
13  *
14  * You should have received a copy of the GNU Lesser General Public
15  * License along with FFmpeg; if not, write to the Free Software
16  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
17  */
18 #include <string.h>
19 
20 #include "libavutil/opt.h"
21 #include "libavutil/pixdesc.h"
22 
23 #include "avfilter.h"
24 #include "formats.h"
25 #include "internal.h"
26 #include "transpose.h"
27 #include "vaapi_vpp.h"
28 
29 typedef struct TransposeVAAPIContext {
30     VAAPIVPPContext vpp_ctx; // must be the first field
31     int passthrough;         // PassthroughType, landscape passthrough mode enabled
32     int dir;                 // TransposeDir
33 
34     int rotation_state;
35     int mirror_state;
36 } TransposeVAAPIContext;
37 
transpose_vaapi_build_filter_params(AVFilterContext * avctx)38 static int transpose_vaapi_build_filter_params(AVFilterContext *avctx)
39 {
40     VAAPIVPPContext *vpp_ctx   = avctx->priv;
41     TransposeVAAPIContext *ctx = avctx->priv;
42     VAStatus vas;
43     int support_flag;
44     VAProcPipelineCaps pipeline_caps;
45 
46     memset(&pipeline_caps, 0, sizeof(pipeline_caps));
47     vas = vaQueryVideoProcPipelineCaps(vpp_ctx->hwctx->display,
48                                        vpp_ctx->va_context,
49                                        NULL, 0,
50                                        &pipeline_caps);
51     if (vas != VA_STATUS_SUCCESS) {
52         av_log(avctx, AV_LOG_ERROR, "Failed to query pipeline "
53                "caps: %d (%s).\n", vas, vaErrorStr(vas));
54         return AVERROR(EIO);
55     }
56 
57     if (!pipeline_caps.rotation_flags) {
58         av_log(avctx, AV_LOG_ERROR, "VAAPI driver doesn't support transpose\n");
59         return AVERROR(EINVAL);
60     }
61 
62     switch (ctx->dir) {
63     case TRANSPOSE_CCLOCK_FLIP:
64         ctx->rotation_state = VA_ROTATION_270;
65         ctx->mirror_state   = VA_MIRROR_VERTICAL;
66         break;
67     case TRANSPOSE_CLOCK:
68         ctx->rotation_state = VA_ROTATION_90;
69         ctx->mirror_state   = VA_MIRROR_NONE;
70         break;
71     case TRANSPOSE_CCLOCK:
72         ctx->rotation_state = VA_ROTATION_270;
73         ctx->mirror_state   = VA_MIRROR_NONE;
74         break;
75     case TRANSPOSE_CLOCK_FLIP:
76         ctx->rotation_state = VA_ROTATION_90;
77         ctx->mirror_state   = VA_MIRROR_VERTICAL;
78         break;
79     case TRANSPOSE_REVERSAL:
80         ctx->rotation_state = VA_ROTATION_180;
81         ctx->mirror_state   = VA_MIRROR_NONE;
82         break;
83     case TRANSPOSE_HFLIP:
84         ctx->rotation_state = VA_ROTATION_NONE;
85         ctx->mirror_state   = VA_MIRROR_HORIZONTAL;
86         break;
87     case TRANSPOSE_VFLIP:
88         ctx->rotation_state = VA_ROTATION_NONE;
89         ctx->mirror_state   = VA_MIRROR_VERTICAL;
90         break;
91     default:
92         av_log(avctx, AV_LOG_ERROR, "Failed to set direction to %d\n", ctx->dir);
93         return AVERROR(EINVAL);
94     }
95 
96     if (VA_ROTATION_NONE != ctx->rotation_state) {
97         support_flag = pipeline_caps.rotation_flags & (1 << ctx->rotation_state);
98         if (!support_flag) {
99             av_log(avctx, AV_LOG_ERROR, "VAAPI driver doesn't support rotation %d\n",
100                    ctx->rotation_state);
101             return AVERROR(EINVAL);
102         }
103     }
104 
105     if (VA_MIRROR_NONE != ctx->mirror_state) {
106         support_flag = pipeline_caps.mirror_flags & ctx->mirror_state;
107         if (!support_flag) {
108             av_log(avctx, AV_LOG_ERROR, "VAAPI driver doesn't support mirror %d\n",
109                    ctx->mirror_state);
110             return AVERROR(EINVAL);
111         }
112     }
113 
114     return 0;
115 }
116 
transpose_vaapi_filter_frame(AVFilterLink * inlink,AVFrame * input_frame)117 static int transpose_vaapi_filter_frame(AVFilterLink *inlink, AVFrame *input_frame)
118 {
119     AVFilterContext *avctx     = inlink->dst;
120     AVFilterLink *outlink      = avctx->outputs[0];
121     VAAPIVPPContext *vpp_ctx   = avctx->priv;
122     TransposeVAAPIContext *ctx = avctx->priv;
123     AVFrame *output_frame      = NULL;
124     VAProcPipelineParameterBuffer params;
125     int err;
126 
127     if (ctx->passthrough)
128         return ff_filter_frame(outlink, input_frame);
129 
130     av_log(avctx, AV_LOG_DEBUG, "Filter input: %s, %ux%u (%"PRId64").\n",
131            av_get_pix_fmt_name(input_frame->format),
132            input_frame->width, input_frame->height, input_frame->pts);
133 
134     if (vpp_ctx->va_context == VA_INVALID_ID)
135         return AVERROR(EINVAL);
136 
137     output_frame = ff_get_video_buffer(outlink, vpp_ctx->output_width,
138                                        vpp_ctx->output_height);
139     if (!output_frame) {
140         err = AVERROR(ENOMEM);
141         goto fail;
142     }
143 
144     err = av_frame_copy_props(output_frame, input_frame);
145     if (err < 0)
146         goto fail;
147 
148     err = ff_vaapi_vpp_init_params(avctx, &params,
149                                    input_frame, output_frame);
150     if (err < 0)
151         goto fail;
152 
153     params.rotation_state = ctx->rotation_state;
154     params.mirror_state   = ctx->mirror_state;
155 
156     err = ff_vaapi_vpp_render_picture(avctx, &params, output_frame);
157     if (err < 0)
158         goto fail;
159 
160     av_frame_free(&input_frame);
161 
162     av_log(avctx, AV_LOG_DEBUG, "Filter output: %s, %ux%u (%"PRId64").\n",
163            av_get_pix_fmt_name(output_frame->format),
164            output_frame->width, output_frame->height, output_frame->pts);
165 
166     return ff_filter_frame(outlink, output_frame);
167 
168 fail:
169     av_frame_free(&input_frame);
170     av_frame_free(&output_frame);
171     return err;
172 }
173 
transpose_vaapi_init(AVFilterContext * avctx)174 static av_cold int transpose_vaapi_init(AVFilterContext *avctx)
175 {
176     VAAPIVPPContext *vpp_ctx = avctx->priv;
177 
178     ff_vaapi_vpp_ctx_init(avctx);
179     vpp_ctx->pipeline_uninit     = ff_vaapi_vpp_pipeline_uninit;
180     vpp_ctx->build_filter_params = transpose_vaapi_build_filter_params;
181     vpp_ctx->output_format       = AV_PIX_FMT_NONE;
182 
183     return 0;
184 }
185 
transpose_vaapi_vpp_config_output(AVFilterLink * outlink)186 static int transpose_vaapi_vpp_config_output(AVFilterLink *outlink)
187 {
188     AVFilterContext *avctx     = outlink->src;
189     VAAPIVPPContext *vpp_ctx   = avctx->priv;
190     TransposeVAAPIContext *ctx = avctx->priv;
191     AVFilterLink *inlink       = avctx->inputs[0];
192 
193     if ((inlink->w >= inlink->h && ctx->passthrough == TRANSPOSE_PT_TYPE_LANDSCAPE) ||
194         (inlink->w <= inlink->h && ctx->passthrough == TRANSPOSE_PT_TYPE_PORTRAIT)) {
195         outlink->hw_frames_ctx = av_buffer_ref(inlink->hw_frames_ctx);
196         if (!outlink->hw_frames_ctx)
197             return AVERROR(ENOMEM);
198         av_log(avctx, AV_LOG_VERBOSE,
199                "w:%d h:%d -> w:%d h:%d (passthrough mode)\n",
200                inlink->w, inlink->h, inlink->w, inlink->h);
201         return 0;
202     }
203 
204     ctx->passthrough = TRANSPOSE_PT_TYPE_NONE;
205 
206     switch (ctx->dir) {
207     case TRANSPOSE_CCLOCK_FLIP:
208     case TRANSPOSE_CCLOCK:
209     case TRANSPOSE_CLOCK:
210     case TRANSPOSE_CLOCK_FLIP:
211         vpp_ctx->output_width  = avctx->inputs[0]->h;
212         vpp_ctx->output_height = avctx->inputs[0]->w;
213         av_log(avctx, AV_LOG_DEBUG, "swap width and height for clock/cclock rotation\n");
214         break;
215     default:
216         break;
217     }
218 
219     return ff_vaapi_vpp_config_output(outlink);
220 }
221 
get_video_buffer(AVFilterLink * inlink,int w,int h)222 static AVFrame *get_video_buffer(AVFilterLink *inlink, int w, int h)
223 {
224     TransposeVAAPIContext *ctx = inlink->dst->priv;
225 
226     return ctx->passthrough ?
227         ff_null_get_video_buffer(inlink, w, h) :
228         ff_default_get_video_buffer(inlink, w, h);
229 }
230 
231 #define OFFSET(x) offsetof(TransposeVAAPIContext, x)
232 #define FLAGS (AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_FILTERING_PARAM)
233 static const AVOption transpose_vaapi_options[] = {
234     { "dir", "set transpose direction", OFFSET(dir), AV_OPT_TYPE_INT, { .i64 = TRANSPOSE_CCLOCK_FLIP }, 0, 6, FLAGS, "dir" },
235         { "cclock_flip",   "rotate counter-clockwise with vertical flip", 0, AV_OPT_TYPE_CONST, { .i64 = TRANSPOSE_CCLOCK_FLIP }, .flags=FLAGS, .unit = "dir" },
236         { "clock",         "rotate clockwise",                            0, AV_OPT_TYPE_CONST, { .i64 = TRANSPOSE_CLOCK       }, .flags=FLAGS, .unit = "dir" },
237         { "cclock",        "rotate counter-clockwise",                    0, AV_OPT_TYPE_CONST, { .i64 = TRANSPOSE_CCLOCK      }, .flags=FLAGS, .unit = "dir" },
238         { "clock_flip",    "rotate clockwise with vertical flip",         0, AV_OPT_TYPE_CONST, { .i64 = TRANSPOSE_CLOCK_FLIP  }, .flags=FLAGS, .unit = "dir" },
239         { "reversal",      "rotate by half-turn",                         0, AV_OPT_TYPE_CONST, { .i64 = TRANSPOSE_REVERSAL    }, .flags=FLAGS, .unit = "dir" },
240         { "hflip",         "flip horizontally",                           0, AV_OPT_TYPE_CONST, { .i64 = TRANSPOSE_HFLIP       }, .flags=FLAGS, .unit = "dir" },
241         { "vflip",         "flip vertically",                             0, AV_OPT_TYPE_CONST, { .i64 = TRANSPOSE_VFLIP       }, .flags=FLAGS, .unit = "dir" },
242 
243     { "passthrough", "do not apply transposition if the input matches the specified geometry",
244       OFFSET(passthrough), AV_OPT_TYPE_INT, {.i64=TRANSPOSE_PT_TYPE_NONE},  0, INT_MAX, FLAGS, "passthrough" },
245         { "none",      "always apply transposition",   0, AV_OPT_TYPE_CONST, {.i64=TRANSPOSE_PT_TYPE_NONE},      INT_MIN, INT_MAX, FLAGS, "passthrough" },
246         { "portrait",  "preserve portrait geometry",   0, AV_OPT_TYPE_CONST, {.i64=TRANSPOSE_PT_TYPE_PORTRAIT},  INT_MIN, INT_MAX, FLAGS, "passthrough" },
247         { "landscape", "preserve landscape geometry",  0, AV_OPT_TYPE_CONST, {.i64=TRANSPOSE_PT_TYPE_LANDSCAPE}, INT_MIN, INT_MAX, FLAGS, "passthrough" },
248 
249     { NULL }
250 };
251 
252 
253 AVFILTER_DEFINE_CLASS(transpose_vaapi);
254 
255 static const AVFilterPad transpose_vaapi_inputs[] = {
256     {
257         .name         = "default",
258         .type         = AVMEDIA_TYPE_VIDEO,
259         .filter_frame = &transpose_vaapi_filter_frame,
260         .get_buffer.video = get_video_buffer,
261         .config_props = &ff_vaapi_vpp_config_input,
262     },
263 };
264 
265 static const AVFilterPad transpose_vaapi_outputs[] = {
266     {
267         .name = "default",
268         .type = AVMEDIA_TYPE_VIDEO,
269         .config_props = &transpose_vaapi_vpp_config_output,
270     },
271 };
272 
273 const AVFilter ff_vf_transpose_vaapi = {
274     .name           = "transpose_vaapi",
275     .description    = NULL_IF_CONFIG_SMALL("VAAPI VPP for transpose"),
276     .priv_size      = sizeof(TransposeVAAPIContext),
277     .init           = &transpose_vaapi_init,
278     .uninit         = &ff_vaapi_vpp_ctx_uninit,
279     FILTER_INPUTS(transpose_vaapi_inputs),
280     FILTER_OUTPUTS(transpose_vaapi_outputs),
281     FILTER_QUERY_FUNC(&ff_vaapi_vpp_query_formats),
282     .priv_class     = &transpose_vaapi_class,
283     .flags_internal = FF_FILTER_FLAG_HWFRAME_AWARE,
284 };
285