2 * This file is part of FFmpeg.
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.
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.
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
22 # include <va/va_x11.h>
25 # include <va/va_drm.h>
37 #include "hwcontext.h"
38 #include "hwcontext_internal.h"
39 #include "hwcontext_vaapi.h"
44 typedef struct VAAPIDevicePriv {
52 typedef struct VAAPISurfaceFormat {
53 enum AVPixelFormat pix_fmt;
54 VAImageFormat image_format;
57 typedef struct VAAPIDeviceContext {
58 // Surface formats which can be used with this device.
59 VAAPISurfaceFormat *formats;
63 typedef struct VAAPIFramesContext {
64 // Surface attributes set at create time.
65 VASurfaceAttrib *attributes;
67 // RT format of the underlying surface (Intel driver ignores this anyway).
68 unsigned int rt_format;
69 // Whether vaDeriveImage works.
74 VAAPI_MAP_READ = 0x01,
75 VAAPI_MAP_WRITE = 0x02,
76 VAAPI_MAP_DIRECT = 0x04,
79 typedef struct VAAPISurfaceMap {
80 // The source hardware frame of this mapping (with hw_frames_ctx set).
81 const AVFrame *source;
82 // VAAPI_MAP_* flags which apply to this mapping.
84 // Handle to the derived or copied image which is mapped.
88 #define MAP(va, rt, av) { \
90 VA_RT_FORMAT_ ## rt, \
93 // The map fourcc <-> pix_fmt isn't bijective because of the annoying U/V
94 // plane swap cases. The frame handling below tries to hide these.
97 unsigned int rt_format;
98 enum AVPixelFormat pix_fmt;
99 } vaapi_format_map[] = {
100 MAP(NV12, YUV420, NV12),
101 MAP(YV12, YUV420, YUV420P), // With U/V planes swapped.
102 MAP(IYUV, YUV420, YUV420P),
103 //MAP(I420, YUV420, YUV420P), // Not in libva but used by Intel driver.
104 #ifdef VA_FOURCC_YV16
105 MAP(YV16, YUV422, YUV422P), // With U/V planes swapped.
107 MAP(422H, YUV422, YUV422P),
108 MAP(UYVY, YUV422, UYVY422),
109 MAP(YUY2, YUV422, YUYV422),
110 MAP(Y800, YUV400, GRAY8),
111 #ifdef VA_FOURCC_P010
112 MAP(P010, YUV420_10BPP, P010),
114 MAP(BGRA, RGB32, BGRA),
115 MAP(BGRX, RGB32, BGR0),
116 MAP(RGBA, RGB32, RGBA),
117 MAP(RGBX, RGB32, RGB0),
118 #ifdef VA_FOURCC_ABGR
119 MAP(ABGR, RGB32, ABGR),
120 MAP(XBGR, RGB32, 0BGR),
122 MAP(ARGB, RGB32, ARGB),
123 MAP(XRGB, RGB32, 0RGB),
127 static enum AVPixelFormat vaapi_pix_fmt_from_fourcc(unsigned int fourcc)
130 for (i = 0; i < FF_ARRAY_ELEMS(vaapi_format_map); i++)
131 if (vaapi_format_map[i].fourcc == fourcc)
132 return vaapi_format_map[i].pix_fmt;
133 return AV_PIX_FMT_NONE;
136 static int vaapi_get_image_format(AVHWDeviceContext *hwdev,
137 enum AVPixelFormat pix_fmt,
138 VAImageFormat **image_format)
140 VAAPIDeviceContext *ctx = hwdev->internal->priv;
143 for (i = 0; i < ctx->nb_formats; i++) {
144 if (ctx->formats[i].pix_fmt == pix_fmt) {
145 *image_format = &ctx->formats[i].image_format;
149 return AVERROR(EINVAL);
152 static int vaapi_frames_get_constraints(AVHWDeviceContext *hwdev,
153 const void *hwconfig,
154 AVHWFramesConstraints *constraints)
156 AVVAAPIDeviceContext *hwctx = hwdev->hwctx;
157 const AVVAAPIHWConfig *config = hwconfig;
158 VAAPIDeviceContext *ctx = hwdev->internal->priv;
159 VASurfaceAttrib *attr_list = NULL;
161 enum AVPixelFormat pix_fmt;
163 int err, i, j, attr_count, pix_fmt_count;
167 vas = vaQuerySurfaceAttributes(hwctx->display, config->config_id,
169 if (vas != VA_STATUS_SUCCESS) {
170 av_log(hwdev, AV_LOG_ERROR, "Failed to query surface attributes: "
171 "%d (%s).\n", vas, vaErrorStr(vas));
172 err = AVERROR(ENOSYS);
176 attr_list = av_malloc(attr_count * sizeof(*attr_list));
178 err = AVERROR(ENOMEM);
182 vas = vaQuerySurfaceAttributes(hwctx->display, config->config_id,
183 attr_list, &attr_count);
184 if (vas != VA_STATUS_SUCCESS) {
185 av_log(hwdev, AV_LOG_ERROR, "Failed to query surface attributes: "
186 "%d (%s).\n", vas, vaErrorStr(vas));
187 err = AVERROR(ENOSYS);
192 for (i = 0; i < attr_count; i++) {
193 switch (attr_list[i].type) {
194 case VASurfaceAttribPixelFormat:
195 fourcc = attr_list[i].value.value.i;
196 pix_fmt = vaapi_pix_fmt_from_fourcc(fourcc);
197 if (pix_fmt != AV_PIX_FMT_NONE) {
200 // Something unsupported - ignore.
203 case VASurfaceAttribMinWidth:
204 constraints->min_width = attr_list[i].value.value.i;
206 case VASurfaceAttribMinHeight:
207 constraints->min_height = attr_list[i].value.value.i;
209 case VASurfaceAttribMaxWidth:
210 constraints->max_width = attr_list[i].value.value.i;
212 case VASurfaceAttribMaxHeight:
213 constraints->max_height = attr_list[i].value.value.i;
217 if (pix_fmt_count == 0) {
218 // Nothing usable found. Presumably there exists something which
219 // works, so leave the set null to indicate unknown.
220 constraints->valid_sw_formats = NULL;
222 constraints->valid_sw_formats = av_malloc_array(pix_fmt_count + 1,
224 if (!constraints->valid_sw_formats) {
225 err = AVERROR(ENOMEM);
229 for (i = j = 0; i < attr_count; i++) {
230 if (attr_list[i].type != VASurfaceAttribPixelFormat)
232 fourcc = attr_list[i].value.value.i;
233 pix_fmt = vaapi_pix_fmt_from_fourcc(fourcc);
234 if (pix_fmt != AV_PIX_FMT_NONE)
235 constraints->valid_sw_formats[j++] = pix_fmt;
237 av_assert0(j == pix_fmt_count);
238 constraints->valid_sw_formats[j] = AV_PIX_FMT_NONE;
241 // No configuration supplied.
242 // Return the full set of image formats known by the implementation.
243 constraints->valid_sw_formats = av_malloc_array(ctx->nb_formats + 1,
245 if (!constraints->valid_sw_formats) {
246 err = AVERROR(ENOMEM);
249 for (i = 0; i < ctx->nb_formats; i++)
250 constraints->valid_sw_formats[i] = ctx->formats[i].pix_fmt;
251 constraints->valid_sw_formats[i] = AV_PIX_FMT_NONE;
254 constraints->valid_hw_formats = av_malloc_array(2, sizeof(pix_fmt));
255 if (!constraints->valid_hw_formats) {
256 err = AVERROR(ENOMEM);
259 constraints->valid_hw_formats[0] = AV_PIX_FMT_VAAPI;
260 constraints->valid_hw_formats[1] = AV_PIX_FMT_NONE;
264 av_freep(&attr_list);
268 static const struct {
269 const char *friendly_name;
270 const char *match_string;
272 } vaapi_driver_quirks_table[] = {
274 "Intel i965 (Quick Sync)",
276 AV_VAAPI_DRIVER_QUIRK_RENDER_PARAM_BUFFERS,
281 AV_VAAPI_DRIVER_QUIRK_ATTRIB_MEMTYPE,
285 static int vaapi_device_init(AVHWDeviceContext *hwdev)
287 VAAPIDeviceContext *ctx = hwdev->internal->priv;
288 AVVAAPIDeviceContext *hwctx = hwdev->hwctx;
289 VAImageFormat *image_list = NULL;
291 const char *vendor_string;
292 int err, i, image_count;
293 enum AVPixelFormat pix_fmt;
296 image_count = vaMaxNumImageFormats(hwctx->display);
297 if (image_count <= 0) {
301 image_list = av_malloc(image_count * sizeof(*image_list));
303 err = AVERROR(ENOMEM);
306 vas = vaQueryImageFormats(hwctx->display, image_list, &image_count);
307 if (vas != VA_STATUS_SUCCESS) {
312 ctx->formats = av_malloc(image_count * sizeof(*ctx->formats));
314 err = AVERROR(ENOMEM);
318 for (i = 0; i < image_count; i++) {
319 fourcc = image_list[i].fourcc;
320 pix_fmt = vaapi_pix_fmt_from_fourcc(fourcc);
321 if (pix_fmt == AV_PIX_FMT_NONE) {
322 av_log(hwdev, AV_LOG_DEBUG, "Format %#x -> unknown.\n",
325 av_log(hwdev, AV_LOG_DEBUG, "Format %#x -> %s.\n",
326 fourcc, av_get_pix_fmt_name(pix_fmt));
327 ctx->formats[ctx->nb_formats].pix_fmt = pix_fmt;
328 ctx->formats[ctx->nb_formats].image_format = image_list[i];
333 if (hwctx->driver_quirks & AV_VAAPI_DRIVER_QUIRK_USER_SET) {
334 av_log(hwdev, AV_LOG_VERBOSE, "Not detecting driver: "
335 "quirks set by user.\n");
337 // Detect the driver in use and set quirk flags if necessary.
338 vendor_string = vaQueryVendorString(hwctx->display);
339 hwctx->driver_quirks = 0;
341 for (i = 0; i < FF_ARRAY_ELEMS(vaapi_driver_quirks_table); i++) {
342 if (strstr(vendor_string,
343 vaapi_driver_quirks_table[i].match_string)) {
344 av_log(hwdev, AV_LOG_VERBOSE, "Matched \"%s\" as known "
345 "driver \"%s\".\n", vendor_string,
346 vaapi_driver_quirks_table[i].friendly_name);
347 hwctx->driver_quirks |=
348 vaapi_driver_quirks_table[i].quirks;
352 if (!(i < FF_ARRAY_ELEMS(vaapi_driver_quirks_table))) {
353 av_log(hwdev, AV_LOG_VERBOSE, "Unknown driver \"%s\", "
354 "assuming standard behaviour.\n", vendor_string);
362 av_freep(&ctx->formats);
367 static void vaapi_device_uninit(AVHWDeviceContext *hwdev)
369 VAAPIDeviceContext *ctx = hwdev->internal->priv;
371 av_freep(&ctx->formats);
374 static void vaapi_buffer_free(void *opaque, uint8_t *data)
376 AVHWFramesContext *hwfc = opaque;
377 AVVAAPIDeviceContext *hwctx = hwfc->device_ctx->hwctx;
378 VASurfaceID surface_id;
381 surface_id = (VASurfaceID)(uintptr_t)data;
383 vas = vaDestroySurfaces(hwctx->display, &surface_id, 1);
384 if (vas != VA_STATUS_SUCCESS) {
385 av_log(hwfc, AV_LOG_ERROR, "Failed to destroy surface %#x: "
386 "%d (%s).\n", surface_id, vas, vaErrorStr(vas));
390 static AVBufferRef *vaapi_pool_alloc(void *opaque, int size)
392 AVHWFramesContext *hwfc = opaque;
393 VAAPIFramesContext *ctx = hwfc->internal->priv;
394 AVVAAPIDeviceContext *hwctx = hwfc->device_ctx->hwctx;
395 AVVAAPIFramesContext *avfc = hwfc->hwctx;
396 VASurfaceID surface_id;
400 vas = vaCreateSurfaces(hwctx->display, ctx->rt_format,
401 hwfc->width, hwfc->height,
403 ctx->attributes, ctx->nb_attributes);
404 if (vas != VA_STATUS_SUCCESS) {
405 av_log(hwfc, AV_LOG_ERROR, "Failed to create surface: "
406 "%d (%s).\n", vas, vaErrorStr(vas));
409 av_log(hwfc, AV_LOG_DEBUG, "Created surface %#x.\n", surface_id);
411 ref = av_buffer_create((uint8_t*)(uintptr_t)surface_id,
412 sizeof(surface_id), &vaapi_buffer_free,
413 hwfc, AV_BUFFER_FLAG_READONLY);
415 vaDestroySurfaces(hwctx->display, &surface_id, 1);
419 if (hwfc->initial_pool_size > 0) {
420 // This is a fixed-size pool, so we must still be in the initial
421 // allocation sequence.
422 av_assert0(avfc->nb_surfaces < hwfc->initial_pool_size);
423 avfc->surface_ids[avfc->nb_surfaces] = surface_id;
430 static int vaapi_frames_init(AVHWFramesContext *hwfc)
432 AVVAAPIFramesContext *avfc = hwfc->hwctx;
433 VAAPIFramesContext *ctx = hwfc->internal->priv;
434 AVVAAPIDeviceContext *hwctx = hwfc->device_ctx->hwctx;
435 VAImageFormat *expected_format;
436 AVBufferRef *test_surface = NULL;
437 VASurfaceID test_surface_id;
441 unsigned int fourcc, rt_format;
443 for (i = 0; i < FF_ARRAY_ELEMS(vaapi_format_map); i++) {
444 if (vaapi_format_map[i].pix_fmt == hwfc->sw_format) {
445 fourcc = vaapi_format_map[i].fourcc;
446 rt_format = vaapi_format_map[i].rt_format;
450 if (i >= FF_ARRAY_ELEMS(vaapi_format_map)) {
451 av_log(hwfc, AV_LOG_ERROR, "Unsupported format: %s.\n",
452 av_get_pix_fmt_name(hwfc->sw_format));
453 return AVERROR(EINVAL);
457 int need_memory_type = !(hwctx->driver_quirks & AV_VAAPI_DRIVER_QUIRK_ATTRIB_MEMTYPE);
458 int need_pixel_format = 1;
459 for (i = 0; i < avfc->nb_attributes; i++) {
460 if (ctx->attributes[i].type == VASurfaceAttribMemoryType)
461 need_memory_type = 0;
462 if (ctx->attributes[i].type == VASurfaceAttribPixelFormat)
463 need_pixel_format = 0;
466 avfc->nb_attributes + need_memory_type + need_pixel_format;
468 ctx->attributes = av_malloc(ctx->nb_attributes *
469 sizeof(*ctx->attributes));
470 if (!ctx->attributes) {
471 err = AVERROR(ENOMEM);
475 for (i = 0; i < avfc->nb_attributes; i++)
476 ctx->attributes[i] = avfc->attributes[i];
477 if (need_memory_type) {
478 ctx->attributes[i++] = (VASurfaceAttrib) {
479 .type = VASurfaceAttribMemoryType,
480 .flags = VA_SURFACE_ATTRIB_SETTABLE,
481 .value.type = VAGenericValueTypeInteger,
482 .value.value.i = VA_SURFACE_ATTRIB_MEM_TYPE_VA,
485 if (need_pixel_format) {
486 ctx->attributes[i++] = (VASurfaceAttrib) {
487 .type = VASurfaceAttribPixelFormat,
488 .flags = VA_SURFACE_ATTRIB_SETTABLE,
489 .value.type = VAGenericValueTypeInteger,
490 .value.value.i = fourcc,
493 av_assert0(i == ctx->nb_attributes);
495 ctx->rt_format = rt_format;
497 if (hwfc->initial_pool_size > 0) {
498 // This pool will be usable as a render target, so we need to store
499 // all of the surface IDs somewhere that vaCreateContext() calls
500 // will be able to access them.
501 avfc->nb_surfaces = 0;
502 avfc->surface_ids = av_malloc(hwfc->initial_pool_size *
503 sizeof(*avfc->surface_ids));
504 if (!avfc->surface_ids) {
505 err = AVERROR(ENOMEM);
509 // This pool allows dynamic sizing, and will not be usable as a
511 avfc->nb_surfaces = 0;
512 avfc->surface_ids = NULL;
515 hwfc->internal->pool_internal =
516 av_buffer_pool_init2(sizeof(VASurfaceID), hwfc,
517 &vaapi_pool_alloc, NULL);
518 if (!hwfc->internal->pool_internal) {
519 av_log(hwfc, AV_LOG_ERROR, "Failed to create VAAPI surface pool.\n");
520 err = AVERROR(ENOMEM);
525 // Allocate a single surface to test whether vaDeriveImage() is going
526 // to work for the specific configuration.
528 test_surface = av_buffer_pool_get(hwfc->pool);
530 av_log(hwfc, AV_LOG_ERROR, "Unable to allocate a surface from "
531 "user-configured buffer pool.\n");
532 err = AVERROR(ENOMEM);
536 test_surface = av_buffer_pool_get(hwfc->internal->pool_internal);
538 av_log(hwfc, AV_LOG_ERROR, "Unable to allocate a surface from "
539 "internal buffer pool.\n");
540 err = AVERROR(ENOMEM);
544 test_surface_id = (VASurfaceID)(uintptr_t)test_surface->data;
546 ctx->derive_works = 0;
548 err = vaapi_get_image_format(hwfc->device_ctx,
549 hwfc->sw_format, &expected_format);
551 vas = vaDeriveImage(hwctx->display, test_surface_id, &test_image);
552 if (vas == VA_STATUS_SUCCESS) {
553 if (expected_format->fourcc == test_image.format.fourcc) {
554 av_log(hwfc, AV_LOG_DEBUG, "Direct mapping possible.\n");
555 ctx->derive_works = 1;
557 av_log(hwfc, AV_LOG_DEBUG, "Direct mapping disabled: "
558 "derived image format %08x does not match "
559 "expected format %08x.\n",
560 expected_format->fourcc, test_image.format.fourcc);
562 vaDestroyImage(hwctx->display, test_image.image_id);
564 av_log(hwfc, AV_LOG_DEBUG, "Direct mapping disabled: "
565 "deriving image does not work: "
566 "%d (%s).\n", vas, vaErrorStr(vas));
569 av_log(hwfc, AV_LOG_DEBUG, "Direct mapping disabled: "
570 "image format is not supported.\n");
573 av_buffer_unref(&test_surface);
577 av_buffer_unref(&test_surface);
578 av_freep(&avfc->surface_ids);
579 av_freep(&ctx->attributes);
583 static void vaapi_frames_uninit(AVHWFramesContext *hwfc)
585 AVVAAPIFramesContext *avfc = hwfc->hwctx;
586 VAAPIFramesContext *ctx = hwfc->internal->priv;
588 av_freep(&avfc->surface_ids);
589 av_freep(&ctx->attributes);
592 static int vaapi_get_buffer(AVHWFramesContext *hwfc, AVFrame *frame)
594 frame->buf[0] = av_buffer_pool_get(hwfc->pool);
596 return AVERROR(ENOMEM);
598 frame->data[3] = frame->buf[0]->data;
599 frame->format = AV_PIX_FMT_VAAPI;
600 frame->width = hwfc->width;
601 frame->height = hwfc->height;
606 static int vaapi_transfer_get_formats(AVHWFramesContext *hwfc,
607 enum AVHWFrameTransferDirection dir,
608 enum AVPixelFormat **formats)
610 VAAPIDeviceContext *ctx = hwfc->device_ctx->internal->priv;
611 enum AVPixelFormat *pix_fmts, preferred_format;
614 preferred_format = hwfc->sw_format;
616 pix_fmts = av_malloc((ctx->nb_formats + 1) * sizeof(*pix_fmts));
618 return AVERROR(ENOMEM);
620 pix_fmts[0] = preferred_format;
622 for (i = 0; i < ctx->nb_formats; i++) {
623 if (ctx->formats[i].pix_fmt == preferred_format)
625 av_assert0(k < ctx->nb_formats);
626 pix_fmts[k++] = ctx->formats[i].pix_fmt;
628 av_assert0(k == ctx->nb_formats);
629 pix_fmts[k] = AV_PIX_FMT_NONE;
635 static void vaapi_unmap_frame(void *opaque, uint8_t *data)
637 AVHWFramesContext *hwfc = opaque;
638 AVVAAPIDeviceContext *hwctx = hwfc->device_ctx->hwctx;
639 VAAPISurfaceMap *map = (VAAPISurfaceMap*)data;
641 VASurfaceID surface_id;
645 surface_id = (VASurfaceID)(uintptr_t)src->data[3];
646 av_log(hwfc, AV_LOG_DEBUG, "Unmap surface %#x.\n", surface_id);
648 vas = vaUnmapBuffer(hwctx->display, map->image.buf);
649 if (vas != VA_STATUS_SUCCESS) {
650 av_log(hwfc, AV_LOG_ERROR, "Failed to unmap image from surface "
651 "%#x: %d (%s).\n", surface_id, vas, vaErrorStr(vas));
654 if ((map->flags & VAAPI_MAP_WRITE) &&
655 !(map->flags & VAAPI_MAP_DIRECT)) {
656 vas = vaPutImage(hwctx->display, surface_id, map->image.image_id,
657 0, 0, hwfc->width, hwfc->height,
658 0, 0, hwfc->width, hwfc->height);
659 if (vas != VA_STATUS_SUCCESS) {
660 av_log(hwfc, AV_LOG_ERROR, "Failed to write image to surface "
661 "%#x: %d (%s).\n", surface_id, vas, vaErrorStr(vas));
665 vas = vaDestroyImage(hwctx->display, map->image.image_id);
666 if (vas != VA_STATUS_SUCCESS) {
667 av_log(hwfc, AV_LOG_ERROR, "Failed to destroy image from surface "
668 "%#x: %d (%s).\n", surface_id, vas, vaErrorStr(vas));
674 static int vaapi_map_frame(AVHWFramesContext *hwfc,
675 AVFrame *dst, const AVFrame *src, int flags)
677 AVVAAPIDeviceContext *hwctx = hwfc->device_ctx->hwctx;
678 VAAPIFramesContext *ctx = hwfc->internal->priv;
679 VASurfaceID surface_id;
680 VAImageFormat *image_format;
681 VAAPISurfaceMap *map;
683 void *address = NULL;
686 surface_id = (VASurfaceID)(uintptr_t)src->data[3];
687 av_log(hwfc, AV_LOG_DEBUG, "Map surface %#x.\n", surface_id);
689 if (!ctx->derive_works && (flags & VAAPI_MAP_DIRECT)) {
690 // Requested direct mapping but it is not possible.
691 return AVERROR(EINVAL);
693 if (dst->format == AV_PIX_FMT_NONE)
694 dst->format = hwfc->sw_format;
695 if (dst->format != hwfc->sw_format && (flags & VAAPI_MAP_DIRECT)) {
696 // Requested direct mapping but the formats do not match.
697 return AVERROR(EINVAL);
700 err = vaapi_get_image_format(hwfc->device_ctx, dst->format, &image_format);
702 // Requested format is not a valid output format.
703 return AVERROR(EINVAL);
706 map = av_malloc(sizeof(VAAPISurfaceMap));
708 return AVERROR(ENOMEM);
712 map->image.image_id = VA_INVALID_ID;
714 vas = vaSyncSurface(hwctx->display, surface_id);
715 if (vas != VA_STATUS_SUCCESS) {
716 av_log(hwfc, AV_LOG_ERROR, "Failed to sync surface "
717 "%#x: %d (%s).\n", surface_id, vas, vaErrorStr(vas));
722 // The memory which we map using derive need not be connected to the CPU
723 // in a way conducive to fast access. On Gen7-Gen9 Intel graphics, the
724 // memory is mappable but not cached, so normal memcpy()-like access is
725 // very slow to read it (but writing is ok). It is possible to read much
726 // faster with a copy routine which is aware of the limitation, but we
727 // assume for now that the user is not aware of that and would therefore
728 // prefer not to be given direct-mapped memory if they request read access.
729 if (ctx->derive_works &&
730 ((flags & VAAPI_MAP_DIRECT) || !(flags & VAAPI_MAP_READ))) {
731 vas = vaDeriveImage(hwctx->display, surface_id, &map->image);
732 if (vas != VA_STATUS_SUCCESS) {
733 av_log(hwfc, AV_LOG_ERROR, "Failed to derive image from "
734 "surface %#x: %d (%s).\n",
735 surface_id, vas, vaErrorStr(vas));
739 if (map->image.format.fourcc != image_format->fourcc) {
740 av_log(hwfc, AV_LOG_ERROR, "Derive image of surface %#x "
741 "is in wrong format: expected %#08x, got %#08x.\n",
742 surface_id, image_format->fourcc, map->image.format.fourcc);
746 map->flags |= VAAPI_MAP_DIRECT;
748 vas = vaCreateImage(hwctx->display, image_format,
749 hwfc->width, hwfc->height, &map->image);
750 if (vas != VA_STATUS_SUCCESS) {
751 av_log(hwfc, AV_LOG_ERROR, "Failed to create image for "
752 "surface %#x: %d (%s).\n",
753 surface_id, vas, vaErrorStr(vas));
757 if (flags & VAAPI_MAP_READ) {
758 vas = vaGetImage(hwctx->display, surface_id, 0, 0,
759 hwfc->width, hwfc->height, map->image.image_id);
760 if (vas != VA_STATUS_SUCCESS) {
761 av_log(hwfc, AV_LOG_ERROR, "Failed to read image from "
762 "surface %#x: %d (%s).\n",
763 surface_id, vas, vaErrorStr(vas));
770 vas = vaMapBuffer(hwctx->display, map->image.buf, &address);
771 if (vas != VA_STATUS_SUCCESS) {
772 av_log(hwfc, AV_LOG_ERROR, "Failed to map image from surface "
773 "%#x: %d (%s).\n", surface_id, vas, vaErrorStr(vas));
778 dst->width = src->width;
779 dst->height = src->height;
781 for (i = 0; i < map->image.num_planes; i++) {
782 dst->data[i] = (uint8_t*)address + map->image.offsets[i];
783 dst->linesize[i] = map->image.pitches[i];
786 #ifdef VA_FOURCC_YV16
787 map->image.format.fourcc == VA_FOURCC_YV16 ||
789 map->image.format.fourcc == VA_FOURCC_YV12) {
790 // Chroma planes are YVU rather than YUV, so swap them.
791 FFSWAP(uint8_t*, dst->data[1], dst->data[2]);
794 dst->buf[0] = av_buffer_create((uint8_t*)map, sizeof(*map),
795 &vaapi_unmap_frame, hwfc, 0);
797 err = AVERROR(ENOMEM);
806 vaUnmapBuffer(hwctx->display, map->image.buf);
807 if (map->image.image_id != VA_INVALID_ID)
808 vaDestroyImage(hwctx->display, map->image.image_id);
814 static int vaapi_transfer_data_from(AVHWFramesContext *hwfc,
815 AVFrame *dst, const AVFrame *src)
820 if (dst->width > hwfc->width || dst->height > hwfc->height)
821 return AVERROR(EINVAL);
823 map = av_frame_alloc();
825 return AVERROR(ENOMEM);
826 map->format = dst->format;
828 err = vaapi_map_frame(hwfc, map, src, VAAPI_MAP_READ);
832 map->width = dst->width;
833 map->height = dst->height;
835 err = av_frame_copy(dst, map);
845 static int vaapi_transfer_data_to(AVHWFramesContext *hwfc,
846 AVFrame *dst, const AVFrame *src)
851 if (src->width > hwfc->width || src->height > hwfc->height)
852 return AVERROR(EINVAL);
854 map = av_frame_alloc();
856 return AVERROR(ENOMEM);
857 map->format = src->format;
859 err = vaapi_map_frame(hwfc, map, dst, VAAPI_MAP_WRITE);
863 map->width = src->width;
864 map->height = src->height;
866 err = av_frame_copy(map, src);
876 static void vaapi_device_free(AVHWDeviceContext *ctx)
878 AVVAAPIDeviceContext *hwctx = ctx->hwctx;
879 VAAPIDevicePriv *priv = ctx->user_opaque;
882 vaTerminate(hwctx->display);
885 if (priv->x11_display)
886 XCloseDisplay(priv->x11_display);
889 if (priv->drm_fd >= 0)
895 static int vaapi_device_create(AVHWDeviceContext *ctx, const char *device,
896 AVDictionary *opts, int flags)
898 AVVAAPIDeviceContext *hwctx = ctx->hwctx;
899 VAAPIDevicePriv *priv;
900 VADisplay display = 0;
904 priv = av_mallocz(sizeof(*priv));
906 return AVERROR(ENOMEM);
910 ctx->user_opaque = priv;
911 ctx->free = vaapi_device_free;
914 if (!display && !(device && device[0] == '/')) {
915 // Try to open the device as an X11 display.
916 priv->x11_display = XOpenDisplay(device);
917 if (!priv->x11_display) {
918 av_log(ctx, AV_LOG_VERBOSE, "Cannot open X11 display "
919 "%s.\n", XDisplayName(device));
921 display = vaGetDisplay(priv->x11_display);
923 av_log(ctx, AV_LOG_ERROR, "Cannot open a VA display "
924 "from X11 display %s.\n", XDisplayName(device));
925 return AVERROR_UNKNOWN;
928 av_log(ctx, AV_LOG_VERBOSE, "Opened VA display via "
929 "X11 display %s.\n", XDisplayName(device));
936 // Try to open the device as a DRM path.
937 // Default to using the first render node if the user did not
939 const char *path = device ? device : "/dev/dri/renderD128";
940 priv->drm_fd = open(path, O_RDWR);
941 if (priv->drm_fd < 0) {
942 av_log(ctx, AV_LOG_VERBOSE, "Cannot open DRM device %s.\n",
945 display = vaGetDisplayDRM(priv->drm_fd);
947 av_log(ctx, AV_LOG_ERROR, "Cannot open a VA display "
948 "from DRM device %s.\n", path);
949 return AVERROR_UNKNOWN;
952 av_log(ctx, AV_LOG_VERBOSE, "Opened VA display via "
953 "DRM device %s.\n", path);
959 av_log(ctx, AV_LOG_ERROR, "No VA display found for "
960 "device: %s.\n", device ? device : "");
961 return AVERROR(EINVAL);
964 hwctx->display = display;
966 vas = vaInitialize(display, &major, &minor);
967 if (vas != VA_STATUS_SUCCESS) {
968 av_log(ctx, AV_LOG_ERROR, "Failed to initialise VAAPI "
969 "connection: %d (%s).\n", vas, vaErrorStr(vas));
972 av_log(ctx, AV_LOG_VERBOSE, "Initialised VAAPI connection: "
973 "version %d.%d\n", major, minor);
978 const HWContextType ff_hwcontext_type_vaapi = {
979 .type = AV_HWDEVICE_TYPE_VAAPI,
982 .device_hwctx_size = sizeof(AVVAAPIDeviceContext),
983 .device_priv_size = sizeof(VAAPIDeviceContext),
984 .device_hwconfig_size = sizeof(AVVAAPIHWConfig),
985 .frames_hwctx_size = sizeof(AVVAAPIFramesContext),
986 .frames_priv_size = sizeof(VAAPIFramesContext),
988 .device_create = &vaapi_device_create,
989 .device_init = &vaapi_device_init,
990 .device_uninit = &vaapi_device_uninit,
991 .frames_get_constraints = &vaapi_frames_get_constraints,
992 .frames_init = &vaapi_frames_init,
993 .frames_uninit = &vaapi_frames_uninit,
994 .frames_get_buffer = &vaapi_get_buffer,
995 .transfer_get_formats = &vaapi_transfer_get_formats,
996 .transfer_data_to = &vaapi_transfer_data_to,
997 .transfer_data_from = &vaapi_transfer_data_from,
999 .pix_fmts = (const enum AVPixelFormat[]) {