libavfilter/vsrc_testsrc_vulkan.c

   1 /*
   2  * Copyright (c) Lynne
   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 "libavutil/random_seed.h"
  22 #include "libavutil/csp.h"
  23 #include "libavutil/opt.h"
  24 #include "libavutil/vulkan_spirv.h"
  25 #include "vulkan_filter.h"
  26 #include "filters.h"
  27 #include "colorspace.h"
  28 #include "video.h"
  29
  30 enum TestSrcVulkanMode {
  31     TESTSRC_COLOR,
  32 };
  33
  34 typedef struct TestSrcVulkanPushData {
  35     float color_comp[4];
  36 } TestSrcVulkanPushData;
  37
  38 typedef struct TestSrcVulkanContext {
  39     FFVulkanContext vkctx;
  40
  41     int initialized;
  42     FFVkExecPool e;
  43     AVVulkanDeviceQueueFamily *qf;
  44     FFVulkanShader shd;
  45
  46     /* Only used by color_vulkan */
  47     uint8_t color_rgba[4];
  48
  49     TestSrcVulkanPushData opts;
  50
  51     int w, h;
  52     int pw, ph;
  53     char *out_format_string;
  54     enum AVColorRange out_range;
  55     unsigned int nb_frame;
  56     AVRational time_base, frame_rate;
  57     int64_t pts;
  58     int64_t duration;           ///< duration expressed in microseconds
  59     AVRational sar;             ///< sample aspect ratio
  60     int draw_once;              ///< draw only the first frame, always put out the same picture
  61     int draw_once_reset;        ///< draw only the first frame or in case of reset
  62     AVFrame *picref;            ///< cached reference containing the painted picture
  63 } TestSrcVulkanContext;
  64
  65 static av_cold int init_filter(AVFilterContext *ctx, enum TestSrcVulkanMode mode)
  66 {
  67     int err;
  68     uint8_t *spv_data;
  69     size_t spv_len;
  70     void *spv_opaque = NULL;
  71     TestSrcVulkanContext *s = ctx->priv;
  72     FFVulkanContext *vkctx = &s->vkctx;
  73     const int planes = av_pix_fmt_count_planes(s->vkctx.output_format);
  74     FFVulkanShader *shd = &s->shd;
  75     FFVkSPIRVCompiler *spv;
  76     FFVulkanDescriptorSetBinding *desc_set;
  77     const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(s->vkctx.output_format);
  78
  79     spv = ff_vk_spirv_init();
  80     if (!spv) {
  81         av_log(ctx, AV_LOG_ERROR, "Unable to initialize SPIR-V compiler!\n");
  82         return AVERROR_EXTERNAL;
  83     }
  84
  85     s->qf = ff_vk_qf_find(vkctx, VK_QUEUE_COMPUTE_BIT, 0);
  86     if (!s->qf) {
  87         av_log(ctx, AV_LOG_ERROR, "Device has no compute queues\n");
  88         err = AVERROR(ENOTSUP);
  89         goto fail;
  90     }
  91
  92     RET(ff_vk_exec_pool_init(vkctx, s->qf, &s->e, s->qf->num*4, 0, 0, 0, NULL));
  93     RET(ff_vk_shader_init(vkctx, &s->shd, "scale",
  94                           VK_SHADER_STAGE_COMPUTE_BIT,
  95                           NULL, 0,
  96                           32, 32, 1,
  97                           0));
  98
  99     GLSLC(0, layout(push_constant, std430) uniform pushConstants {        );
 100     GLSLC(1,    vec4 color_comp;                                          );
 101     GLSLC(0, };                                                           );
 102     GLSLC(0,                                                              );
 103
 104     ff_vk_shader_add_push_const(&s->shd, 0, sizeof(s->opts),
 105                                 VK_SHADER_STAGE_COMPUTE_BIT);
 106
 107     desc_set = (FFVulkanDescriptorSetBinding []) {
 108         {
 109             .name       = "output_img",
 110             .type       = VK_DESCRIPTOR_TYPE_STORAGE_IMAGE,
 111             .mem_layout = ff_vk_shader_rep_fmt(s->vkctx.output_format, FF_VK_REP_FLOAT),
 112             .mem_quali  = "writeonly",
 113             .dimensions = 2,
 114             .elems      = planes,
 115             .stages     = VK_SHADER_STAGE_COMPUTE_BIT,
 116         },
 117     };
 118
 119     RET(ff_vk_shader_add_descriptor_set(vkctx, &s->shd, desc_set, 1, 0, 0));
 120
 121     GLSLC(0, void main()                                                  );
 122     GLSLC(0, {                                                            );
 123     GLSLC(1,     ivec2 pos = ivec2(gl_GlobalInvocationID.xy);             );
 124     if (mode == TESTSRC_COLOR) {
 125         double rgb2yuv[3][3];
 126         double rgbad[4];
 127         double yuvad[4];
 128
 129         enum AVColorSpace csp;
 130         const AVLumaCoefficients *luma = NULL;
 131
 132         s->draw_once = 1;
 133
 134         if (desc->flags & AV_PIX_FMT_FLAG_RGB)
 135             csp = AVCOL_SPC_RGB;
 136         else
 137             csp = AVCOL_SPC_SMPTE170M;
 138
 139         if (!(desc->flags & AV_PIX_FMT_FLAG_RGB) && !(luma = av_csp_luma_coeffs_from_avcsp(csp)))
 140             return AVERROR(EINVAL);
 141         else if (!(desc->flags & AV_PIX_FMT_FLAG_RGB))
 142             ff_fill_rgb2yuv_table(luma, rgb2yuv);
 143
 144         for (int i = 0; i < 4; i++)
 145             rgbad[i] = s->color_rgba[i] / 255.0;
 146
 147         if (!(desc->flags & AV_PIX_FMT_FLAG_RGB))
 148             ff_matrix_mul_3x3_vec(yuvad, rgbad, rgb2yuv);
 149         else
 150             memcpy(yuvad, rgbad, sizeof(rgbad));
 151
 152         yuvad[3] = rgbad[3];
 153
 154         if (!(desc->flags & AV_PIX_FMT_FLAG_RGB)) {
 155             for (int i = 0; i < 3; i++) {
 156                 int chroma = (!(desc->flags & AV_PIX_FMT_FLAG_RGB) && i > 0);
 157                 if (s->out_range == AVCOL_RANGE_MPEG) {
 158                     yuvad[i] *= (chroma ? 224.0 : 219.0) / 255.0;
 159                     yuvad[i] += (chroma ? 128.0 :  16.0) / 255.0;
 160                 } else if (chroma) {
 161                     yuvad[i] += 0.5;
 162                 }
 163             }
 164         }
 165
 166         /* Ensure we place the alpha appropriately for gray formats */
 167         if (desc->nb_components <= 2)
 168             yuvad[1] = yuvad[3];
 169
 170         for (int i = 0; i < 4; i++)
 171             s->opts.color_comp[i] = yuvad[i];
 172
 173         GLSLC(1,     vec4 r;                                                  );
 174         GLSLC(0,                                                              );
 175         for (int i = 0, c_off = 0; i < planes; i++) {
 176             for (int c = 0; c < desc->nb_components; c++) {
 177                 if (desc->comp[c].plane == i) {
 178                     int off = desc->comp[c].offset / (FFALIGN(desc->comp[c].depth, 8)/8);
 179                     GLSLF(1, r[%i] = color_comp[%i];             ,off, c_off++);
 180                 }
 181             }
 182             GLSLF(1, imageStore(output_img[%i], pos, r);                    ,i);
 183             GLSLC(0,                                                          );
 184         }
 185     }
 186     GLSLC(0, }                                                            );
 187
 188     RET(spv->compile_shader(vkctx, spv, shd, &spv_data, &spv_len, "main",
 189                             &spv_opaque));
 190     RET(ff_vk_shader_link(vkctx, shd, spv_data, spv_len, "main"));
 191
 192     RET(ff_vk_shader_register_exec(vkctx, &s->e, &s->shd));
 193
 194     s->initialized = 1;
 195
 196 fail:
 197     if (spv_opaque)
 198         spv->free_shader(spv, &spv_opaque);
 199     if (spv)
 200         spv->uninit(&spv);
 201
 202     return err;
 203 }
 204
 205 static int testsrc_vulkan_activate(AVFilterContext *ctx)
 206 {
 207     int err;
 208     AVFilterLink *outlink = ctx->outputs[0];
 209     TestSrcVulkanContext *s = ctx->priv;
 210     AVFrame *frame;
 211
 212     if (!s->initialized) {
 213         enum TestSrcVulkanMode mode = TESTSRC_COLOR;
 214         err = init_filter(ctx, mode);
 215         if (err < 0)
 216             return err;
 217     }
 218
 219     if (!ff_outlink_frame_wanted(outlink))
 220         return FFERROR_NOT_READY;
 221     if (s->duration >= 0 &&
 222         av_rescale_q(s->pts, s->time_base, AV_TIME_BASE_Q) >= s->duration) {
 223         ff_outlink_set_status(outlink, AVERROR_EOF, s->pts);
 224         return 0;
 225     }
 226
 227     if (s->draw_once) {
 228         if (s->draw_once_reset) {
 229             av_frame_free(&s->picref);
 230             s->draw_once_reset = 0;
 231         }
 232         if (!s->picref) {
 233             s->picref = ff_get_video_buffer(outlink, s->w, s->h);
 234             if (!s->picref)
 235                 return AVERROR(ENOMEM);
 236
 237             err = ff_vk_filter_process_simple(&s->vkctx, &s->e, &s->shd, s->picref, NULL,
 238                                               VK_NULL_HANDLE, &s->opts, sizeof(s->opts));
 239             if (err < 0)
 240                 return err;
 241         }
 242         frame = av_frame_clone(s->picref);
 243     } else {
 244         frame = ff_get_video_buffer(outlink, s->w, s->h);
 245     }
 246
 247     if (!frame)
 248         return AVERROR(ENOMEM);
 249
 250     frame->pts                 = s->pts;
 251     frame->duration            = 1;
 252     frame->flags               = AV_FRAME_FLAG_KEY;
 253     frame->pict_type           = AV_PICTURE_TYPE_I;
 254     frame->sample_aspect_ratio = s->sar;
 255     if (!s->draw_once) {
 256         err = ff_vk_filter_process_simple(&s->vkctx, &s->e, &s->shd, frame, NULL,
 257                                           VK_NULL_HANDLE, &s->opts, sizeof(s->opts));
 258         if (err < 0) {
 259             av_frame_free(&frame);
 260             return err;
 261         }
 262     }
 263
 264     s->pts++;
 265     s->nb_frame++;
 266
 267     return ff_filter_frame(outlink, frame);
 268 }
 269
 270 static int testsrc_vulkan_config_props(AVFilterLink *outlink)
 271 {
 272     int err;
 273     FilterLink *l = ff_filter_link(outlink);
 274     TestSrcVulkanContext *s = outlink->src->priv;
 275     FFVulkanContext *vkctx = &s->vkctx;
 276
 277     if (!s->out_format_string) {
 278         vkctx->output_format = AV_PIX_FMT_YUV444P;
 279     } else {
 280         vkctx->output_format = av_get_pix_fmt(s->out_format_string);
 281         if (vkctx->output_format == AV_PIX_FMT_NONE) {
 282             av_log(vkctx, AV_LOG_ERROR, "Invalid output format.\n");
 283             return AVERROR(EINVAL);
 284         }
 285     }
 286
 287     err = ff_vk_filter_init_context(outlink->src, vkctx, NULL,
 288                                     s->w, s->h, vkctx->output_format);
 289     if (err < 0)
 290         return err;
 291
 292     l->hw_frames_ctx = av_buffer_ref(vkctx->frames_ref);
 293     if (!l->hw_frames_ctx)
 294         return AVERROR(ENOMEM);
 295
 296     s->time_base = av_inv_q(s->frame_rate);
 297     s->nb_frame = 0;
 298     s->pts = 0;
 299
 300     s->vkctx.output_width = s->w;
 301     s->vkctx.output_height = s->h;
 302     outlink->w = s->w;
 303     outlink->h = s->h;
 304     outlink->sample_aspect_ratio = s->sar;
 305     l->frame_rate = s->frame_rate;
 306     outlink->time_base  = s->time_base;
 307
 308     return 0;
 309 }
 310
 311 static void testsrc_vulkan_uninit(AVFilterContext *avctx)
 312 {
 313     TestSrcVulkanContext *s = avctx->priv;
 314     FFVulkanContext *vkctx = &s->vkctx;
 315
 316     av_frame_free(&s->picref);
 317
 318     ff_vk_exec_pool_free(vkctx, &s->e);
 319     ff_vk_shader_free(vkctx, &s->shd);
 320
 321     ff_vk_uninit(&s->vkctx);
 322
 323     s->initialized = 0;
 324 }
 325
 326 #define OFFSET(x) offsetof(TestSrcVulkanContext, x)
 327 #define FLAGS (AV_OPT_FLAG_FILTERING_PARAM | AV_OPT_FLAG_VIDEO_PARAM)
 328
 329 #define COMMON_OPTS                                                                                                                           \
 330     { "size", "set video size", OFFSET(w), AV_OPT_TYPE_IMAGE_SIZE, { .str = "1920x1080" }, 0, 0, FLAGS },                                     \
 331     { "s",    "set video size", OFFSET(w), AV_OPT_TYPE_IMAGE_SIZE, { .str = "1920x1080" }, 0, 0, FLAGS },                                     \
 332                                                                                                                                               \
 333     { "rate", "set video rate", OFFSET(frame_rate), AV_OPT_TYPE_VIDEO_RATE, { .str = "60" }, 0, INT_MAX, FLAGS },                             \
 334     { "r",    "set video rate", OFFSET(frame_rate), AV_OPT_TYPE_VIDEO_RATE, { .str = "60" }, 0, INT_MAX, FLAGS },                             \
 335                                                                                                                                               \
 336     { "duration", "set video duration", OFFSET(duration), AV_OPT_TYPE_DURATION, { .i64 = -1 }, -1, INT64_MAX, FLAGS },                        \
 337     { "d",        "set video duration", OFFSET(duration), AV_OPT_TYPE_DURATION, { .i64 = -1 }, -1, INT64_MAX, FLAGS },                        \
 338                                                                                                                                               \
 339     { "sar", "set video sample aspect ratio", OFFSET(sar), AV_OPT_TYPE_RATIONAL, { .dbl = 1 },  0, INT_MAX, FLAGS },                          \
 340                                                                                                                                               \
 341     { "format", "Output video format (software format of hardware frames)", OFFSET(out_format_string), AV_OPT_TYPE_STRING, .flags = FLAGS },
 342
 343 static const AVOption color_vulkan_options[] = {
 344     { "color", "set color", OFFSET(color_rgba), AV_OPT_TYPE_COLOR, {.str = "black"}, 0, 0, FLAGS },
 345     { "c",     "set color", OFFSET(color_rgba), AV_OPT_TYPE_COLOR, {.str = "black"}, 0, 0, FLAGS },
 346     COMMON_OPTS
 347     { "out_range", "Output colour range (from 0 to 2) (default 0)", OFFSET(out_range), AV_OPT_TYPE_INT, {.i64 = AVCOL_RANGE_UNSPECIFIED}, AVCOL_RANGE_UNSPECIFIED, AVCOL_RANGE_JPEG, .flags = FLAGS, .unit = "range" },
 348         { "full", "Full range", 0, AV_OPT_TYPE_CONST, { .i64 = AVCOL_RANGE_JPEG }, 0, 0, FLAGS, .unit = "range" },
 349         { "limited", "Limited range", 0, AV_OPT_TYPE_CONST, { .i64 = AVCOL_RANGE_MPEG }, 0, 0, FLAGS, .unit = "range" },
 350         { "jpeg", "Full range", 0, AV_OPT_TYPE_CONST, { .i64 = AVCOL_RANGE_JPEG }, 0, 0, FLAGS, .unit = "range" },
 351         { "mpeg", "Limited range", 0, AV_OPT_TYPE_CONST, { .i64 = AVCOL_RANGE_MPEG }, 0, 0, FLAGS, .unit = "range" },
 352         { "tv", "Limited range", 0, AV_OPT_TYPE_CONST, { .i64 = AVCOL_RANGE_MPEG }, 0, 0, FLAGS, .unit = "range" },
 353         { "pc", "Full range", 0, AV_OPT_TYPE_CONST, { .i64 = AVCOL_RANGE_JPEG }, 0, 0, FLAGS, .unit = "range" },
 354     { NULL },
 355 };
 356
 357 AVFILTER_DEFINE_CLASS(color_vulkan);
 358
 359 static const AVFilterPad testsrc_vulkan_outputs[] = {
 360     {
 361         .name = "default",
 362         .type = AVMEDIA_TYPE_VIDEO,
 363         .config_props = testsrc_vulkan_config_props,
 364     },
 365 };
 366
 367 const FFFilter ff_vsrc_color_vulkan = {
 368     .p.name         = "color_vulkan",
 369     .p.description  = NULL_IF_CONFIG_SMALL("Generate a constant color (Vulkan)"),
 370     .p.inputs       = NULL,
 371     .p.flags        = AVFILTER_FLAG_HWDEVICE,
 372     .p.priv_class   = &color_vulkan_class,
 373     .priv_size      = sizeof(TestSrcVulkanContext),
 374     .init           = &ff_vk_filter_init,
 375     .uninit         = &testsrc_vulkan_uninit,
 376     .activate       = testsrc_vulkan_activate,
 377     FILTER_OUTPUTS(testsrc_vulkan_outputs),
 378     FILTER_SINGLE_PIXFMT(AV_PIX_FMT_VULKAN),
 379     .flags_internal = FF_FILTER_FLAG_HWFRAME_AWARE,
 380 };