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>
29 # include <va/va_drmcommon.h>
31 # include <drm_fourcc.h>
32 # ifndef DRM_FORMAT_MOD_INVALID
33 # define DRM_FORMAT_MOD_INVALID ((1ULL << 56) - 1)
46 #include "hwcontext.h"
47 #include "hwcontext_drm.h"
48 #include "hwcontext_internal.h"
49 #include "hwcontext_vaapi.h"
55 typedef struct VAAPIDevicePriv {
63 typedef struct VAAPISurfaceFormat {
64 enum AVPixelFormat pix_fmt;
65 VAImageFormat image_format;
68 typedef struct VAAPIDeviceContext {
69 // Surface formats which can be used with this device.
70 VAAPISurfaceFormat *formats;
74 typedef struct VAAPIFramesContext {
75 // Surface attributes set at create time.
76 VASurfaceAttrib *attributes;
78 // RT format of the underlying surface (Intel driver ignores this anyway).
79 unsigned int rt_format;
80 // Whether vaDeriveImage works.
84 typedef struct VAAPIMapping {
85 // Handle to the derived or copied image which is mapped.
87 // The mapping flags actually used.
91 typedef struct VAAPIFormat {
93 unsigned int rt_format;
94 enum AVPixelFormat pix_fmt;
95 int chroma_planes_swapped;
96 } VAAPIFormatDescriptor;
98 #define MAP(va, rt, av, swap_uv) { \
100 VA_RT_FORMAT_ ## rt, \
104 // The map fourcc <-> pix_fmt isn't bijective because of the annoying U/V
105 // plane swap cases. The frame handling below tries to hide these.
106 static const VAAPIFormatDescriptor vaapi_format_map[] = {
107 MAP(NV12, YUV420, NV12, 0),
108 #ifdef VA_FOURCC_I420
109 MAP(I420, YUV420, YUV420P, 0),
111 MAP(YV12, YUV420, YUV420P, 1),
112 MAP(IYUV, YUV420, YUV420P, 0),
113 MAP(422H, YUV422, YUV422P, 0),
114 #ifdef VA_FOURCC_YV16
115 MAP(YV16, YUV422, YUV422P, 1),
117 MAP(UYVY, YUV422, UYVY422, 0),
118 MAP(YUY2, YUV422, YUYV422, 0),
119 #ifdef VA_FOURCC_Y210
120 MAP(Y210, YUV422_10, Y210, 0),
122 MAP(411P, YUV411, YUV411P, 0),
123 MAP(422V, YUV422, YUV440P, 0),
124 MAP(444P, YUV444, YUV444P, 0),
125 MAP(Y800, YUV400, GRAY8, 0),
126 #ifdef VA_FOURCC_P010
127 MAP(P010, YUV420_10BPP, P010, 0),
129 MAP(BGRA, RGB32, BGRA, 0),
130 MAP(BGRX, RGB32, BGR0, 0),
131 MAP(RGBA, RGB32, RGBA, 0),
132 MAP(RGBX, RGB32, RGB0, 0),
133 #ifdef VA_FOURCC_ABGR
134 MAP(ABGR, RGB32, ABGR, 0),
135 MAP(XBGR, RGB32, 0BGR, 0),
137 MAP(ARGB, RGB32, ARGB, 0),
138 MAP(XRGB, RGB32, 0RGB, 0),
142 static const VAAPIFormatDescriptor *
143 vaapi_format_from_fourcc(unsigned int fourcc)
146 for (i = 0; i < FF_ARRAY_ELEMS(vaapi_format_map); i++)
147 if (vaapi_format_map[i].fourcc == fourcc)
148 return &vaapi_format_map[i];
152 static const VAAPIFormatDescriptor *
153 vaapi_format_from_pix_fmt(enum AVPixelFormat pix_fmt)
156 for (i = 0; i < FF_ARRAY_ELEMS(vaapi_format_map); i++)
157 if (vaapi_format_map[i].pix_fmt == pix_fmt)
158 return &vaapi_format_map[i];
162 static enum AVPixelFormat vaapi_pix_fmt_from_fourcc(unsigned int fourcc)
164 const VAAPIFormatDescriptor *desc;
165 desc = vaapi_format_from_fourcc(fourcc);
167 return desc->pix_fmt;
169 return AV_PIX_FMT_NONE;
172 static int vaapi_get_image_format(AVHWDeviceContext *hwdev,
173 enum AVPixelFormat pix_fmt,
174 VAImageFormat **image_format)
176 VAAPIDeviceContext *ctx = hwdev->internal->priv;
179 for (i = 0; i < ctx->nb_formats; i++) {
180 if (ctx->formats[i].pix_fmt == pix_fmt) {
182 *image_format = &ctx->formats[i].image_format;
186 return AVERROR(EINVAL);
189 static int vaapi_frames_get_constraints(AVHWDeviceContext *hwdev,
190 const void *hwconfig,
191 AVHWFramesConstraints *constraints)
193 AVVAAPIDeviceContext *hwctx = hwdev->hwctx;
194 const AVVAAPIHWConfig *config = hwconfig;
195 VAAPIDeviceContext *ctx = hwdev->internal->priv;
196 VASurfaceAttrib *attr_list = NULL;
198 enum AVPixelFormat pix_fmt;
200 int err, i, j, attr_count, pix_fmt_count;
203 !(hwctx->driver_quirks & AV_VAAPI_DRIVER_QUIRK_SURFACE_ATTRIBUTES)) {
205 vas = vaQuerySurfaceAttributes(hwctx->display, config->config_id,
207 if (vas != VA_STATUS_SUCCESS) {
208 av_log(hwdev, AV_LOG_ERROR, "Failed to query surface attributes: "
209 "%d (%s).\n", vas, vaErrorStr(vas));
210 err = AVERROR(ENOSYS);
214 attr_list = av_malloc(attr_count * sizeof(*attr_list));
216 err = AVERROR(ENOMEM);
220 vas = vaQuerySurfaceAttributes(hwctx->display, config->config_id,
221 attr_list, &attr_count);
222 if (vas != VA_STATUS_SUCCESS) {
223 av_log(hwdev, AV_LOG_ERROR, "Failed to query surface attributes: "
224 "%d (%s).\n", vas, vaErrorStr(vas));
225 err = AVERROR(ENOSYS);
230 for (i = 0; i < attr_count; i++) {
231 switch (attr_list[i].type) {
232 case VASurfaceAttribPixelFormat:
233 fourcc = attr_list[i].value.value.i;
234 pix_fmt = vaapi_pix_fmt_from_fourcc(fourcc);
235 if (pix_fmt != AV_PIX_FMT_NONE) {
238 // Something unsupported - ignore.
241 case VASurfaceAttribMinWidth:
242 constraints->min_width = attr_list[i].value.value.i;
244 case VASurfaceAttribMinHeight:
245 constraints->min_height = attr_list[i].value.value.i;
247 case VASurfaceAttribMaxWidth:
248 constraints->max_width = attr_list[i].value.value.i;
250 case VASurfaceAttribMaxHeight:
251 constraints->max_height = attr_list[i].value.value.i;
255 if (pix_fmt_count == 0) {
256 // Nothing usable found. Presumably there exists something which
257 // works, so leave the set null to indicate unknown.
258 constraints->valid_sw_formats = NULL;
260 constraints->valid_sw_formats = av_malloc_array(pix_fmt_count + 1,
262 if (!constraints->valid_sw_formats) {
263 err = AVERROR(ENOMEM);
267 for (i = j = 0; i < attr_count; i++) {
268 if (attr_list[i].type != VASurfaceAttribPixelFormat)
270 fourcc = attr_list[i].value.value.i;
271 pix_fmt = vaapi_pix_fmt_from_fourcc(fourcc);
272 if (pix_fmt != AV_PIX_FMT_NONE)
273 constraints->valid_sw_formats[j++] = pix_fmt;
275 av_assert0(j == pix_fmt_count);
276 constraints->valid_sw_formats[j] = AV_PIX_FMT_NONE;
279 // No configuration supplied.
280 // Return the full set of image formats known by the implementation.
281 constraints->valid_sw_formats = av_malloc_array(ctx->nb_formats + 1,
283 if (!constraints->valid_sw_formats) {
284 err = AVERROR(ENOMEM);
287 for (i = 0; i < ctx->nb_formats; i++)
288 constraints->valid_sw_formats[i] = ctx->formats[i].pix_fmt;
289 constraints->valid_sw_formats[i] = AV_PIX_FMT_NONE;
292 constraints->valid_hw_formats = av_malloc_array(2, sizeof(pix_fmt));
293 if (!constraints->valid_hw_formats) {
294 err = AVERROR(ENOMEM);
297 constraints->valid_hw_formats[0] = AV_PIX_FMT_VAAPI;
298 constraints->valid_hw_formats[1] = AV_PIX_FMT_NONE;
302 av_freep(&attr_list);
306 static const struct {
307 const char *friendly_name;
308 const char *match_string;
310 } vaapi_driver_quirks_table[] = {
311 #if !VA_CHECK_VERSION(1, 0, 0)
312 // The i965 driver did not conform before version 2.0.
314 "Intel i965 (Quick Sync)",
316 AV_VAAPI_DRIVER_QUIRK_RENDER_PARAM_BUFFERS,
322 AV_VAAPI_DRIVER_QUIRK_ATTRIB_MEMTYPE,
326 "Splitted-Desktop Systems VDPAU backend for VA-API",
327 AV_VAAPI_DRIVER_QUIRK_SURFACE_ATTRIBUTES,
331 static int vaapi_device_init(AVHWDeviceContext *hwdev)
333 VAAPIDeviceContext *ctx = hwdev->internal->priv;
334 AVVAAPIDeviceContext *hwctx = hwdev->hwctx;
335 VAImageFormat *image_list = NULL;
337 const char *vendor_string;
338 int err, i, image_count;
339 enum AVPixelFormat pix_fmt;
342 image_count = vaMaxNumImageFormats(hwctx->display);
343 if (image_count <= 0) {
347 image_list = av_malloc(image_count * sizeof(*image_list));
349 err = AVERROR(ENOMEM);
352 vas = vaQueryImageFormats(hwctx->display, image_list, &image_count);
353 if (vas != VA_STATUS_SUCCESS) {
358 ctx->formats = av_malloc(image_count * sizeof(*ctx->formats));
360 err = AVERROR(ENOMEM);
364 for (i = 0; i < image_count; i++) {
365 fourcc = image_list[i].fourcc;
366 pix_fmt = vaapi_pix_fmt_from_fourcc(fourcc);
367 if (pix_fmt == AV_PIX_FMT_NONE) {
368 av_log(hwdev, AV_LOG_DEBUG, "Format %#x -> unknown.\n",
371 av_log(hwdev, AV_LOG_DEBUG, "Format %#x -> %s.\n",
372 fourcc, av_get_pix_fmt_name(pix_fmt));
373 ctx->formats[ctx->nb_formats].pix_fmt = pix_fmt;
374 ctx->formats[ctx->nb_formats].image_format = image_list[i];
379 vendor_string = vaQueryVendorString(hwctx->display);
381 av_log(hwdev, AV_LOG_VERBOSE, "VAAPI driver: %s.\n", vendor_string);
383 if (hwctx->driver_quirks & AV_VAAPI_DRIVER_QUIRK_USER_SET) {
384 av_log(hwdev, AV_LOG_VERBOSE, "Using quirks set by user (%#x).\n",
385 hwctx->driver_quirks);
387 // Detect the driver in use and set quirk flags if necessary.
388 hwctx->driver_quirks = 0;
390 for (i = 0; i < FF_ARRAY_ELEMS(vaapi_driver_quirks_table); i++) {
391 if (strstr(vendor_string,
392 vaapi_driver_quirks_table[i].match_string)) {
393 av_log(hwdev, AV_LOG_VERBOSE, "Matched driver string "
394 "as known nonstandard driver \"%s\", setting "
396 vaapi_driver_quirks_table[i].friendly_name,
397 vaapi_driver_quirks_table[i].quirks);
398 hwctx->driver_quirks |=
399 vaapi_driver_quirks_table[i].quirks;
403 if (!(i < FF_ARRAY_ELEMS(vaapi_driver_quirks_table))) {
404 av_log(hwdev, AV_LOG_VERBOSE, "Driver not found in known "
405 "nonstandard list, using standard behaviour.\n");
408 av_log(hwdev, AV_LOG_VERBOSE, "Driver has no vendor string, "
409 "assuming standard behaviour.\n");
416 av_freep(&ctx->formats);
421 static void vaapi_device_uninit(AVHWDeviceContext *hwdev)
423 VAAPIDeviceContext *ctx = hwdev->internal->priv;
425 av_freep(&ctx->formats);
428 static void vaapi_buffer_free(void *opaque, uint8_t *data)
430 AVHWFramesContext *hwfc = opaque;
431 AVVAAPIDeviceContext *hwctx = hwfc->device_ctx->hwctx;
432 VASurfaceID surface_id;
435 surface_id = (VASurfaceID)(uintptr_t)data;
437 vas = vaDestroySurfaces(hwctx->display, &surface_id, 1);
438 if (vas != VA_STATUS_SUCCESS) {
439 av_log(hwfc, AV_LOG_ERROR, "Failed to destroy surface %#x: "
440 "%d (%s).\n", surface_id, vas, vaErrorStr(vas));
444 static AVBufferRef *vaapi_pool_alloc(void *opaque, int size)
446 AVHWFramesContext *hwfc = opaque;
447 VAAPIFramesContext *ctx = hwfc->internal->priv;
448 AVVAAPIDeviceContext *hwctx = hwfc->device_ctx->hwctx;
449 AVVAAPIFramesContext *avfc = hwfc->hwctx;
450 VASurfaceID surface_id;
454 if (hwfc->initial_pool_size > 0 &&
455 avfc->nb_surfaces >= hwfc->initial_pool_size)
458 vas = vaCreateSurfaces(hwctx->display, ctx->rt_format,
459 hwfc->width, hwfc->height,
461 ctx->attributes, ctx->nb_attributes);
462 if (vas != VA_STATUS_SUCCESS) {
463 av_log(hwfc, AV_LOG_ERROR, "Failed to create surface: "
464 "%d (%s).\n", vas, vaErrorStr(vas));
467 av_log(hwfc, AV_LOG_DEBUG, "Created surface %#x.\n", surface_id);
469 ref = av_buffer_create((uint8_t*)(uintptr_t)surface_id,
470 sizeof(surface_id), &vaapi_buffer_free,
471 hwfc, AV_BUFFER_FLAG_READONLY);
473 vaDestroySurfaces(hwctx->display, &surface_id, 1);
477 if (hwfc->initial_pool_size > 0) {
478 // This is a fixed-size pool, so we must still be in the initial
479 // allocation sequence.
480 av_assert0(avfc->nb_surfaces < hwfc->initial_pool_size);
481 avfc->surface_ids[avfc->nb_surfaces] = surface_id;
488 static int vaapi_frames_init(AVHWFramesContext *hwfc)
490 AVVAAPIFramesContext *avfc = hwfc->hwctx;
491 VAAPIFramesContext *ctx = hwfc->internal->priv;
492 AVVAAPIDeviceContext *hwctx = hwfc->device_ctx->hwctx;
493 const VAAPIFormatDescriptor *desc;
494 VAImageFormat *expected_format;
495 AVBufferRef *test_surface = NULL;
496 VASurfaceID test_surface_id;
501 desc = vaapi_format_from_pix_fmt(hwfc->sw_format);
503 av_log(hwfc, AV_LOG_ERROR, "Unsupported format: %s.\n",
504 av_get_pix_fmt_name(hwfc->sw_format));
505 return AVERROR(EINVAL);
509 if (!(hwctx->driver_quirks & AV_VAAPI_DRIVER_QUIRK_SURFACE_ATTRIBUTES)) {
510 int need_memory_type = !(hwctx->driver_quirks & AV_VAAPI_DRIVER_QUIRK_ATTRIB_MEMTYPE);
511 int need_pixel_format = 1;
512 for (i = 0; i < avfc->nb_attributes; i++) {
513 if (avfc->attributes[i].type == VASurfaceAttribMemoryType)
514 need_memory_type = 0;
515 if (avfc->attributes[i].type == VASurfaceAttribPixelFormat)
516 need_pixel_format = 0;
519 avfc->nb_attributes + need_memory_type + need_pixel_format;
521 ctx->attributes = av_malloc(ctx->nb_attributes *
522 sizeof(*ctx->attributes));
523 if (!ctx->attributes) {
524 err = AVERROR(ENOMEM);
528 for (i = 0; i < avfc->nb_attributes; i++)
529 ctx->attributes[i] = avfc->attributes[i];
530 if (need_memory_type) {
531 ctx->attributes[i++] = (VASurfaceAttrib) {
532 .type = VASurfaceAttribMemoryType,
533 .flags = VA_SURFACE_ATTRIB_SETTABLE,
534 .value.type = VAGenericValueTypeInteger,
535 .value.value.i = VA_SURFACE_ATTRIB_MEM_TYPE_VA,
538 if (need_pixel_format) {
539 ctx->attributes[i++] = (VASurfaceAttrib) {
540 .type = VASurfaceAttribPixelFormat,
541 .flags = VA_SURFACE_ATTRIB_SETTABLE,
542 .value.type = VAGenericValueTypeInteger,
543 .value.value.i = desc->fourcc,
546 av_assert0(i == ctx->nb_attributes);
548 ctx->attributes = NULL;
549 ctx->nb_attributes = 0;
552 ctx->rt_format = desc->rt_format;
554 if (hwfc->initial_pool_size > 0) {
555 // This pool will be usable as a render target, so we need to store
556 // all of the surface IDs somewhere that vaCreateContext() calls
557 // will be able to access them.
558 avfc->nb_surfaces = 0;
559 avfc->surface_ids = av_malloc(hwfc->initial_pool_size *
560 sizeof(*avfc->surface_ids));
561 if (!avfc->surface_ids) {
562 err = AVERROR(ENOMEM);
566 // This pool allows dynamic sizing, and will not be usable as a
568 avfc->nb_surfaces = 0;
569 avfc->surface_ids = NULL;
572 hwfc->internal->pool_internal =
573 av_buffer_pool_init2(sizeof(VASurfaceID), hwfc,
574 &vaapi_pool_alloc, NULL);
575 if (!hwfc->internal->pool_internal) {
576 av_log(hwfc, AV_LOG_ERROR, "Failed to create VAAPI surface pool.\n");
577 err = AVERROR(ENOMEM);
582 // Allocate a single surface to test whether vaDeriveImage() is going
583 // to work for the specific configuration.
585 test_surface = av_buffer_pool_get(hwfc->pool);
587 av_log(hwfc, AV_LOG_ERROR, "Unable to allocate a surface from "
588 "user-configured buffer pool.\n");
589 err = AVERROR(ENOMEM);
593 test_surface = av_buffer_pool_get(hwfc->internal->pool_internal);
595 av_log(hwfc, AV_LOG_ERROR, "Unable to allocate a surface from "
596 "internal buffer pool.\n");
597 err = AVERROR(ENOMEM);
601 test_surface_id = (VASurfaceID)(uintptr_t)test_surface->data;
603 ctx->derive_works = 0;
605 err = vaapi_get_image_format(hwfc->device_ctx,
606 hwfc->sw_format, &expected_format);
608 vas = vaDeriveImage(hwctx->display, test_surface_id, &test_image);
609 if (vas == VA_STATUS_SUCCESS) {
610 if (expected_format->fourcc == test_image.format.fourcc) {
611 av_log(hwfc, AV_LOG_DEBUG, "Direct mapping possible.\n");
612 ctx->derive_works = 1;
614 av_log(hwfc, AV_LOG_DEBUG, "Direct mapping disabled: "
615 "derived image format %08x does not match "
616 "expected format %08x.\n",
617 expected_format->fourcc, test_image.format.fourcc);
619 vaDestroyImage(hwctx->display, test_image.image_id);
621 av_log(hwfc, AV_LOG_DEBUG, "Direct mapping disabled: "
622 "deriving image does not work: "
623 "%d (%s).\n", vas, vaErrorStr(vas));
626 av_log(hwfc, AV_LOG_DEBUG, "Direct mapping disabled: "
627 "image format is not supported.\n");
630 av_buffer_unref(&test_surface);
634 av_buffer_unref(&test_surface);
635 av_freep(&avfc->surface_ids);
636 av_freep(&ctx->attributes);
640 static void vaapi_frames_uninit(AVHWFramesContext *hwfc)
642 AVVAAPIFramesContext *avfc = hwfc->hwctx;
643 VAAPIFramesContext *ctx = hwfc->internal->priv;
645 av_freep(&avfc->surface_ids);
646 av_freep(&ctx->attributes);
649 static int vaapi_get_buffer(AVHWFramesContext *hwfc, AVFrame *frame)
651 frame->buf[0] = av_buffer_pool_get(hwfc->pool);
653 return AVERROR(ENOMEM);
655 frame->data[3] = frame->buf[0]->data;
656 frame->format = AV_PIX_FMT_VAAPI;
657 frame->width = hwfc->width;
658 frame->height = hwfc->height;
663 static int vaapi_transfer_get_formats(AVHWFramesContext *hwfc,
664 enum AVHWFrameTransferDirection dir,
665 enum AVPixelFormat **formats)
667 VAAPIDeviceContext *ctx = hwfc->device_ctx->internal->priv;
668 enum AVPixelFormat *pix_fmts;
669 int i, k, sw_format_available;
671 sw_format_available = 0;
672 for (i = 0; i < ctx->nb_formats; i++) {
673 if (ctx->formats[i].pix_fmt == hwfc->sw_format)
674 sw_format_available = 1;
677 pix_fmts = av_malloc((ctx->nb_formats + 1) * sizeof(*pix_fmts));
679 return AVERROR(ENOMEM);
681 if (sw_format_available) {
682 pix_fmts[0] = hwfc->sw_format;
687 for (i = 0; i < ctx->nb_formats; i++) {
688 if (ctx->formats[i].pix_fmt == hwfc->sw_format)
690 av_assert0(k < ctx->nb_formats);
691 pix_fmts[k++] = ctx->formats[i].pix_fmt;
693 pix_fmts[k] = AV_PIX_FMT_NONE;
699 static void vaapi_unmap_frame(AVHWFramesContext *hwfc,
700 HWMapDescriptor *hwmap)
702 AVVAAPIDeviceContext *hwctx = hwfc->device_ctx->hwctx;
703 VAAPIMapping *map = hwmap->priv;
704 VASurfaceID surface_id;
707 surface_id = (VASurfaceID)(uintptr_t)hwmap->source->data[3];
708 av_log(hwfc, AV_LOG_DEBUG, "Unmap surface %#x.\n", surface_id);
710 vas = vaUnmapBuffer(hwctx->display, map->image.buf);
711 if (vas != VA_STATUS_SUCCESS) {
712 av_log(hwfc, AV_LOG_ERROR, "Failed to unmap image from surface "
713 "%#x: %d (%s).\n", surface_id, vas, vaErrorStr(vas));
716 if ((map->flags & AV_HWFRAME_MAP_WRITE) &&
717 !(map->flags & AV_HWFRAME_MAP_DIRECT)) {
718 vas = vaPutImage(hwctx->display, surface_id, map->image.image_id,
719 0, 0, hwfc->width, hwfc->height,
720 0, 0, hwfc->width, hwfc->height);
721 if (vas != VA_STATUS_SUCCESS) {
722 av_log(hwfc, AV_LOG_ERROR, "Failed to write image to surface "
723 "%#x: %d (%s).\n", surface_id, vas, vaErrorStr(vas));
727 vas = vaDestroyImage(hwctx->display, map->image.image_id);
728 if (vas != VA_STATUS_SUCCESS) {
729 av_log(hwfc, AV_LOG_ERROR, "Failed to destroy image from surface "
730 "%#x: %d (%s).\n", surface_id, vas, vaErrorStr(vas));
736 static int vaapi_map_frame(AVHWFramesContext *hwfc,
737 AVFrame *dst, const AVFrame *src, int flags)
739 AVVAAPIDeviceContext *hwctx = hwfc->device_ctx->hwctx;
740 VAAPIFramesContext *ctx = hwfc->internal->priv;
741 VASurfaceID surface_id;
742 const VAAPIFormatDescriptor *desc;
743 VAImageFormat *image_format;
746 void *address = NULL;
749 surface_id = (VASurfaceID)(uintptr_t)src->data[3];
750 av_log(hwfc, AV_LOG_DEBUG, "Map surface %#x.\n", surface_id);
752 if (!ctx->derive_works && (flags & AV_HWFRAME_MAP_DIRECT)) {
753 // Requested direct mapping but it is not possible.
754 return AVERROR(EINVAL);
756 if (dst->format == AV_PIX_FMT_NONE)
757 dst->format = hwfc->sw_format;
758 if (dst->format != hwfc->sw_format && (flags & AV_HWFRAME_MAP_DIRECT)) {
759 // Requested direct mapping but the formats do not match.
760 return AVERROR(EINVAL);
763 err = vaapi_get_image_format(hwfc->device_ctx, dst->format, &image_format);
765 // Requested format is not a valid output format.
766 return AVERROR(EINVAL);
769 map = av_malloc(sizeof(*map));
771 return AVERROR(ENOMEM);
773 map->image.image_id = VA_INVALID_ID;
775 vas = vaSyncSurface(hwctx->display, surface_id);
776 if (vas != VA_STATUS_SUCCESS) {
777 av_log(hwfc, AV_LOG_ERROR, "Failed to sync surface "
778 "%#x: %d (%s).\n", surface_id, vas, vaErrorStr(vas));
783 // The memory which we map using derive need not be connected to the CPU
784 // in a way conducive to fast access. On Gen7-Gen9 Intel graphics, the
785 // memory is mappable but not cached, so normal memcpy()-like access is
786 // very slow to read it (but writing is ok). It is possible to read much
787 // faster with a copy routine which is aware of the limitation, but we
788 // assume for now that the user is not aware of that and would therefore
789 // prefer not to be given direct-mapped memory if they request read access.
790 if (ctx->derive_works && dst->format == hwfc->sw_format &&
791 ((flags & AV_HWFRAME_MAP_DIRECT) || !(flags & AV_HWFRAME_MAP_READ))) {
792 vas = vaDeriveImage(hwctx->display, surface_id, &map->image);
793 if (vas != VA_STATUS_SUCCESS) {
794 av_log(hwfc, AV_LOG_ERROR, "Failed to derive image from "
795 "surface %#x: %d (%s).\n",
796 surface_id, vas, vaErrorStr(vas));
800 if (map->image.format.fourcc != image_format->fourcc) {
801 av_log(hwfc, AV_LOG_ERROR, "Derive image of surface %#x "
802 "is in wrong format: expected %#08x, got %#08x.\n",
803 surface_id, image_format->fourcc, map->image.format.fourcc);
807 map->flags |= AV_HWFRAME_MAP_DIRECT;
809 vas = vaCreateImage(hwctx->display, image_format,
810 hwfc->width, hwfc->height, &map->image);
811 if (vas != VA_STATUS_SUCCESS) {
812 av_log(hwfc, AV_LOG_ERROR, "Failed to create image for "
813 "surface %#x: %d (%s).\n",
814 surface_id, vas, vaErrorStr(vas));
818 if (!(flags & AV_HWFRAME_MAP_OVERWRITE)) {
819 vas = vaGetImage(hwctx->display, surface_id, 0, 0,
820 hwfc->width, hwfc->height, map->image.image_id);
821 if (vas != VA_STATUS_SUCCESS) {
822 av_log(hwfc, AV_LOG_ERROR, "Failed to read image from "
823 "surface %#x: %d (%s).\n",
824 surface_id, vas, vaErrorStr(vas));
831 vas = vaMapBuffer(hwctx->display, map->image.buf, &address);
832 if (vas != VA_STATUS_SUCCESS) {
833 av_log(hwfc, AV_LOG_ERROR, "Failed to map image from surface "
834 "%#x: %d (%s).\n", surface_id, vas, vaErrorStr(vas));
839 err = ff_hwframe_map_create(src->hw_frames_ctx,
840 dst, src, &vaapi_unmap_frame, map);
844 dst->width = src->width;
845 dst->height = src->height;
847 for (i = 0; i < map->image.num_planes; i++) {
848 dst->data[i] = (uint8_t*)address + map->image.offsets[i];
849 dst->linesize[i] = map->image.pitches[i];
852 desc = vaapi_format_from_fourcc(map->image.format.fourcc);
853 if (desc && desc->chroma_planes_swapped) {
854 // Chroma planes are YVU rather than YUV, so swap them.
855 FFSWAP(uint8_t*, dst->data[1], dst->data[2]);
863 vaUnmapBuffer(hwctx->display, map->image.buf);
864 if (map->image.image_id != VA_INVALID_ID)
865 vaDestroyImage(hwctx->display, map->image.image_id);
871 static int vaapi_transfer_data_from(AVHWFramesContext *hwfc,
872 AVFrame *dst, const AVFrame *src)
877 if (dst->width > hwfc->width || dst->height > hwfc->height)
878 return AVERROR(EINVAL);
880 map = av_frame_alloc();
882 return AVERROR(ENOMEM);
883 map->format = dst->format;
885 err = vaapi_map_frame(hwfc, map, src, AV_HWFRAME_MAP_READ);
889 map->width = dst->width;
890 map->height = dst->height;
892 err = av_frame_copy(dst, map);
902 static int vaapi_transfer_data_to(AVHWFramesContext *hwfc,
903 AVFrame *dst, const AVFrame *src)
908 if (src->width > hwfc->width || src->height > hwfc->height)
909 return AVERROR(EINVAL);
911 map = av_frame_alloc();
913 return AVERROR(ENOMEM);
914 map->format = src->format;
916 err = vaapi_map_frame(hwfc, map, dst, AV_HWFRAME_MAP_WRITE | AV_HWFRAME_MAP_OVERWRITE);
920 map->width = src->width;
921 map->height = src->height;
923 err = av_frame_copy(map, src);
933 static int vaapi_map_to_memory(AVHWFramesContext *hwfc, AVFrame *dst,
934 const AVFrame *src, int flags)
938 if (dst->format != AV_PIX_FMT_NONE) {
939 err = vaapi_get_image_format(hwfc->device_ctx, dst->format, NULL);
941 return AVERROR(ENOSYS);
944 err = vaapi_map_frame(hwfc, dst, src, flags);
948 err = av_frame_copy_props(dst, src);
957 #define DRM_MAP(va, layers, ...) { \
962 static const struct {
964 int nb_layer_formats;
965 uint32_t layer_formats[AV_DRM_MAX_PLANES];
966 } vaapi_drm_format_map[] = {
968 DRM_MAP(NV12, 2, DRM_FORMAT_R8, DRM_FORMAT_RG88),
970 DRM_MAP(NV12, 1, DRM_FORMAT_NV12),
971 #if defined(VA_FOURCC_P010) && defined(DRM_FORMAT_R16)
972 DRM_MAP(P010, 2, DRM_FORMAT_R16, DRM_FORMAT_RG1616),
974 DRM_MAP(BGRA, 1, DRM_FORMAT_ARGB8888),
975 DRM_MAP(BGRX, 1, DRM_FORMAT_XRGB8888),
976 DRM_MAP(RGBA, 1, DRM_FORMAT_ABGR8888),
977 DRM_MAP(RGBX, 1, DRM_FORMAT_XBGR8888),
978 #ifdef VA_FOURCC_ABGR
979 DRM_MAP(ABGR, 1, DRM_FORMAT_RGBA8888),
980 DRM_MAP(XBGR, 1, DRM_FORMAT_RGBX8888),
982 DRM_MAP(ARGB, 1, DRM_FORMAT_BGRA8888),
983 DRM_MAP(XRGB, 1, DRM_FORMAT_BGRX8888),
987 static void vaapi_unmap_from_drm(AVHWFramesContext *dst_fc,
988 HWMapDescriptor *hwmap)
990 AVVAAPIDeviceContext *dst_dev = dst_fc->device_ctx->hwctx;
992 VASurfaceID surface_id = (VASurfaceID)(uintptr_t)hwmap->priv;
994 av_log(dst_fc, AV_LOG_DEBUG, "Destroy surface %#x.\n", surface_id);
996 vaDestroySurfaces(dst_dev->display, &surface_id, 1);
999 static int vaapi_map_from_drm(AVHWFramesContext *src_fc, AVFrame *dst,
1000 const AVFrame *src, int flags)
1002 AVHWFramesContext *dst_fc =
1003 (AVHWFramesContext*)dst->hw_frames_ctx->data;
1004 AVVAAPIDeviceContext *dst_dev = dst_fc->device_ctx->hwctx;
1005 const AVDRMFrameDescriptor *desc;
1006 const VAAPIFormatDescriptor *format_desc;
1007 VASurfaceID surface_id;
1012 unsigned long buffer_handle;
1013 VASurfaceAttribExternalBuffers buffer_desc;
1014 VASurfaceAttrib attrs[2] = {
1016 .type = VASurfaceAttribMemoryType,
1017 .flags = VA_SURFACE_ATTRIB_SETTABLE,
1018 .value.type = VAGenericValueTypeInteger,
1019 .value.value.i = VA_SURFACE_ATTRIB_MEM_TYPE_DRM_PRIME,
1022 .type = VASurfaceAttribExternalBufferDescriptor,
1023 .flags = VA_SURFACE_ATTRIB_SETTABLE,
1024 .value.type = VAGenericValueTypePointer,
1025 .value.value.p = &buffer_desc,
1029 desc = (AVDRMFrameDescriptor*)src->data[0];
1031 if (desc->nb_objects != 1) {
1032 av_log(dst_fc, AV_LOG_ERROR, "VAAPI can only map frames "
1033 "made from a single DRM object.\n");
1034 return AVERROR(EINVAL);
1038 for (i = 0; i < FF_ARRAY_ELEMS(vaapi_drm_format_map); i++) {
1039 if (desc->nb_layers != vaapi_drm_format_map[i].nb_layer_formats)
1041 for (j = 0; j < desc->nb_layers; j++) {
1042 if (desc->layers[j].format !=
1043 vaapi_drm_format_map[i].layer_formats[j])
1046 if (j != desc->nb_layers)
1048 va_fourcc = vaapi_drm_format_map[i].va_fourcc;
1052 av_log(dst_fc, AV_LOG_ERROR, "DRM format not supported "
1054 return AVERROR(EINVAL);
1057 av_log(dst_fc, AV_LOG_DEBUG, "Map DRM object %d to VAAPI as "
1058 "%08x.\n", desc->objects[0].fd, va_fourcc);
1060 format_desc = vaapi_format_from_fourcc(va_fourcc);
1061 av_assert0(format_desc);
1063 buffer_handle = desc->objects[0].fd;
1064 buffer_desc.pixel_format = va_fourcc;
1065 buffer_desc.width = src_fc->width;
1066 buffer_desc.height = src_fc->height;
1067 buffer_desc.data_size = desc->objects[0].size;
1068 buffer_desc.buffers = &buffer_handle;
1069 buffer_desc.num_buffers = 1;
1070 buffer_desc.flags = 0;
1073 for (i = 0; i < desc->nb_layers; i++) {
1074 for (j = 0; j < desc->layers[i].nb_planes; j++) {
1075 buffer_desc.pitches[k] = desc->layers[i].planes[j].pitch;
1076 buffer_desc.offsets[k] = desc->layers[i].planes[j].offset;
1080 buffer_desc.num_planes = k;
1082 if (format_desc->chroma_planes_swapped &&
1083 buffer_desc.num_planes == 3) {
1084 FFSWAP(uint32_t, buffer_desc.pitches[1], buffer_desc.pitches[2]);
1085 FFSWAP(uint32_t, buffer_desc.offsets[1], buffer_desc.offsets[2]);
1088 vas = vaCreateSurfaces(dst_dev->display, format_desc->rt_format,
1089 src->width, src->height,
1091 attrs, FF_ARRAY_ELEMS(attrs));
1092 if (vas != VA_STATUS_SUCCESS) {
1093 av_log(dst_fc, AV_LOG_ERROR, "Failed to create surface from DRM "
1094 "object: %d (%s).\n", vas, vaErrorStr(vas));
1095 return AVERROR(EIO);
1097 av_log(dst_fc, AV_LOG_DEBUG, "Create surface %#x.\n", surface_id);
1099 err = ff_hwframe_map_create(dst->hw_frames_ctx, dst, src,
1100 &vaapi_unmap_from_drm,
1101 (void*)(uintptr_t)surface_id);
1105 dst->width = src->width;
1106 dst->height = src->height;
1107 dst->data[3] = (uint8_t*)(uintptr_t)surface_id;
1109 av_log(dst_fc, AV_LOG_DEBUG, "Mapped DRM object %d to "
1110 "surface %#x.\n", desc->objects[0].fd, surface_id);
1115 #if VA_CHECK_VERSION(1, 1, 0)
1116 static void vaapi_unmap_to_drm_esh(AVHWFramesContext *hwfc,
1117 HWMapDescriptor *hwmap)
1119 AVDRMFrameDescriptor *drm_desc = hwmap->priv;
1122 for (i = 0; i < drm_desc->nb_objects; i++)
1123 close(drm_desc->objects[i].fd);
1125 av_freep(&drm_desc);
1128 static int vaapi_map_to_drm_esh(AVHWFramesContext *hwfc, AVFrame *dst,
1129 const AVFrame *src, int flags)
1131 AVVAAPIDeviceContext *hwctx = hwfc->device_ctx->hwctx;
1132 VASurfaceID surface_id;
1134 VADRMPRIMESurfaceDescriptor va_desc;
1135 AVDRMFrameDescriptor *drm_desc = NULL;
1136 uint32_t export_flags;
1139 surface_id = (VASurfaceID)(uintptr_t)src->data[3];
1141 export_flags = VA_EXPORT_SURFACE_SEPARATE_LAYERS;
1142 if (flags & AV_HWFRAME_MAP_READ)
1143 export_flags |= VA_EXPORT_SURFACE_READ_ONLY;
1144 if (flags & AV_HWFRAME_MAP_WRITE)
1145 export_flags |= VA_EXPORT_SURFACE_WRITE_ONLY;
1147 vas = vaExportSurfaceHandle(hwctx->display, surface_id,
1148 VA_SURFACE_ATTRIB_MEM_TYPE_DRM_PRIME_2,
1149 export_flags, &va_desc);
1150 if (vas != VA_STATUS_SUCCESS) {
1151 if (vas == VA_STATUS_ERROR_UNIMPLEMENTED)
1152 return AVERROR(ENOSYS);
1153 av_log(hwfc, AV_LOG_ERROR, "Failed to export surface %#x: "
1154 "%d (%s).\n", surface_id, vas, vaErrorStr(vas));
1155 return AVERROR(EIO);
1158 drm_desc = av_mallocz(sizeof(*drm_desc));
1160 err = AVERROR(ENOMEM);
1164 // By some bizarre coincidence, these structures are very similar...
1165 drm_desc->nb_objects = va_desc.num_objects;
1166 for (i = 0; i < va_desc.num_objects; i++) {
1167 drm_desc->objects[i].fd = va_desc.objects[i].fd;
1168 drm_desc->objects[i].size = va_desc.objects[i].size;
1169 drm_desc->objects[i].format_modifier =
1170 va_desc.objects[i].drm_format_modifier;
1172 drm_desc->nb_layers = va_desc.num_layers;
1173 for (i = 0; i < va_desc.num_layers; i++) {
1174 drm_desc->layers[i].format = va_desc.layers[i].drm_format;
1175 drm_desc->layers[i].nb_planes = va_desc.layers[i].num_planes;
1176 for (j = 0; j < va_desc.layers[i].num_planes; j++) {
1177 drm_desc->layers[i].planes[j].object_index =
1178 va_desc.layers[i].object_index[j];
1179 drm_desc->layers[i].planes[j].offset =
1180 va_desc.layers[i].offset[j];
1181 drm_desc->layers[i].planes[j].pitch =
1182 va_desc.layers[i].pitch[j];
1186 err = ff_hwframe_map_create(src->hw_frames_ctx, dst, src,
1187 &vaapi_unmap_to_drm_esh, drm_desc);
1191 dst->width = src->width;
1192 dst->height = src->height;
1193 dst->data[0] = (uint8_t*)drm_desc;
1198 for (i = 0; i < va_desc.num_objects; i++)
1199 close(va_desc.objects[i].fd);
1200 av_freep(&drm_desc);
1205 #if VA_CHECK_VERSION(0, 36, 0)
1206 typedef struct VAAPIDRMImageBufferMapping {
1208 VABufferInfo buffer_info;
1210 AVDRMFrameDescriptor drm_desc;
1211 } VAAPIDRMImageBufferMapping;
1213 static void vaapi_unmap_to_drm_abh(AVHWFramesContext *hwfc,
1214 HWMapDescriptor *hwmap)
1216 AVVAAPIDeviceContext *hwctx = hwfc->device_ctx->hwctx;
1217 VAAPIDRMImageBufferMapping *mapping = hwmap->priv;
1218 VASurfaceID surface_id;
1221 surface_id = (VASurfaceID)(uintptr_t)hwmap->source->data[3];
1222 av_log(hwfc, AV_LOG_DEBUG, "Unmap VAAPI surface %#x from DRM.\n",
1225 // DRM PRIME file descriptors are closed by vaReleaseBufferHandle(),
1226 // so we shouldn't close them separately.
1228 vas = vaReleaseBufferHandle(hwctx->display, mapping->image.buf);
1229 if (vas != VA_STATUS_SUCCESS) {
1230 av_log(hwfc, AV_LOG_ERROR, "Failed to release buffer "
1231 "handle of image %#x (derived from surface %#x): "
1232 "%d (%s).\n", mapping->image.buf, surface_id,
1233 vas, vaErrorStr(vas));
1236 vas = vaDestroyImage(hwctx->display, mapping->image.image_id);
1237 if (vas != VA_STATUS_SUCCESS) {
1238 av_log(hwfc, AV_LOG_ERROR, "Failed to destroy image "
1239 "derived from surface %#x: %d (%s).\n",
1240 surface_id, vas, vaErrorStr(vas));
1246 static int vaapi_map_to_drm_abh(AVHWFramesContext *hwfc, AVFrame *dst,
1247 const AVFrame *src, int flags)
1249 AVVAAPIDeviceContext *hwctx = hwfc->device_ctx->hwctx;
1250 VAAPIDRMImageBufferMapping *mapping = NULL;
1251 VASurfaceID surface_id;
1255 surface_id = (VASurfaceID)(uintptr_t)src->data[3];
1256 av_log(hwfc, AV_LOG_DEBUG, "Map VAAPI surface %#x to DRM.\n",
1259 mapping = av_mallocz(sizeof(*mapping));
1261 return AVERROR(ENOMEM);
1263 vas = vaDeriveImage(hwctx->display, surface_id,
1265 if (vas != VA_STATUS_SUCCESS) {
1266 av_log(hwfc, AV_LOG_ERROR, "Failed to derive image from "
1267 "surface %#x: %d (%s).\n",
1268 surface_id, vas, vaErrorStr(vas));
1273 for (i = 0; i < FF_ARRAY_ELEMS(vaapi_drm_format_map); i++) {
1274 if (vaapi_drm_format_map[i].va_fourcc ==
1275 mapping->image.format.fourcc)
1278 if (i >= FF_ARRAY_ELEMS(vaapi_drm_format_map)) {
1279 av_log(hwfc, AV_LOG_ERROR, "No matching DRM format for "
1280 "VAAPI format %#x.\n", mapping->image.format.fourcc);
1281 err = AVERROR(EINVAL);
1285 mapping->buffer_info.mem_type =
1286 VA_SURFACE_ATTRIB_MEM_TYPE_DRM_PRIME;
1288 mapping->drm_desc.nb_layers =
1289 vaapi_drm_format_map[i].nb_layer_formats;
1290 if (mapping->drm_desc.nb_layers > 1) {
1291 if (mapping->drm_desc.nb_layers != mapping->image.num_planes) {
1292 av_log(hwfc, AV_LOG_ERROR, "Image properties do not match "
1293 "expected format: got %d planes, but expected %d.\n",
1294 mapping->image.num_planes, mapping->drm_desc.nb_layers);
1295 err = AVERROR(EINVAL);
1299 for(p = 0; p < mapping->drm_desc.nb_layers; p++) {
1300 mapping->drm_desc.layers[p] = (AVDRMLayerDescriptor) {
1301 .format = vaapi_drm_format_map[i].layer_formats[p],
1305 .offset = mapping->image.offsets[p],
1306 .pitch = mapping->image.pitches[p],
1311 mapping->drm_desc.layers[0].format =
1312 vaapi_drm_format_map[i].layer_formats[0];
1313 mapping->drm_desc.layers[0].nb_planes = mapping->image.num_planes;
1314 for (p = 0; p < mapping->image.num_planes; p++) {
1315 mapping->drm_desc.layers[0].planes[p] = (AVDRMPlaneDescriptor) {
1317 .offset = mapping->image.offsets[p],
1318 .pitch = mapping->image.pitches[p],
1323 vas = vaAcquireBufferHandle(hwctx->display, mapping->image.buf,
1324 &mapping->buffer_info);
1325 if (vas != VA_STATUS_SUCCESS) {
1326 av_log(hwfc, AV_LOG_ERROR, "Failed to get buffer "
1327 "handle from image %#x (derived from surface %#x): "
1328 "%d (%s).\n", mapping->image.buf, surface_id,
1329 vas, vaErrorStr(vas));
1334 av_log(hwfc, AV_LOG_DEBUG, "DRM PRIME fd is %ld.\n",
1335 mapping->buffer_info.handle);
1337 mapping->drm_desc.nb_objects = 1;
1338 mapping->drm_desc.objects[0] = (AVDRMObjectDescriptor) {
1339 .fd = mapping->buffer_info.handle,
1340 .size = mapping->image.data_size,
1341 // There is no way to get the format modifier with this API.
1342 .format_modifier = DRM_FORMAT_MOD_INVALID,
1345 err = ff_hwframe_map_create(src->hw_frames_ctx,
1346 dst, src, &vaapi_unmap_to_drm_abh,
1351 dst->data[0] = (uint8_t*)&mapping->drm_desc;
1352 dst->width = src->width;
1353 dst->height = src->height;
1358 vaReleaseBufferHandle(hwctx->display, mapping->image.buf);
1360 vaDestroyImage(hwctx->display, mapping->image.image_id);
1367 static int vaapi_map_to_drm(AVHWFramesContext *hwfc, AVFrame *dst,
1368 const AVFrame *src, int flags)
1370 #if VA_CHECK_VERSION(1, 1, 0)
1372 err = vaapi_map_to_drm_esh(hwfc, dst, src, flags);
1373 if (err != AVERROR(ENOSYS))
1376 #if VA_CHECK_VERSION(0, 36, 0)
1377 return vaapi_map_to_drm_abh(hwfc, dst, src, flags);
1379 return AVERROR(ENOSYS);
1382 #endif /* CONFIG_LIBDRM */
1384 static int vaapi_map_to(AVHWFramesContext *hwfc, AVFrame *dst,
1385 const AVFrame *src, int flags)
1387 switch (src->format) {
1389 case AV_PIX_FMT_DRM_PRIME:
1390 return vaapi_map_from_drm(hwfc, dst, src, flags);
1393 return AVERROR(ENOSYS);
1397 static int vaapi_map_from(AVHWFramesContext *hwfc, AVFrame *dst,
1398 const AVFrame *src, int flags)
1400 switch (dst->format) {
1402 case AV_PIX_FMT_DRM_PRIME:
1403 return vaapi_map_to_drm(hwfc, dst, src, flags);
1406 return vaapi_map_to_memory(hwfc, dst, src, flags);
1410 static void vaapi_device_free(AVHWDeviceContext *ctx)
1412 AVVAAPIDeviceContext *hwctx = ctx->hwctx;
1413 VAAPIDevicePriv *priv = ctx->user_opaque;
1416 vaTerminate(hwctx->display);
1419 if (priv->x11_display)
1420 XCloseDisplay(priv->x11_display);
1423 if (priv->drm_fd >= 0)
1424 close(priv->drm_fd);
1430 static void vaapi_device_log_error(void *context, const char *message)
1432 AVHWDeviceContext *ctx = context;
1434 av_log(ctx, AV_LOG_ERROR, "libva: %s", message);
1437 static void vaapi_device_log_info(void *context, const char *message)
1439 AVHWDeviceContext *ctx = context;
1441 av_log(ctx, AV_LOG_VERBOSE, "libva: %s", message);
1445 static int vaapi_device_connect(AVHWDeviceContext *ctx,
1448 AVVAAPIDeviceContext *hwctx = ctx->hwctx;
1453 vaSetErrorCallback(display, &vaapi_device_log_error, ctx);
1454 vaSetInfoCallback (display, &vaapi_device_log_info, ctx);
1457 hwctx->display = display;
1459 vas = vaInitialize(display, &major, &minor);
1460 if (vas != VA_STATUS_SUCCESS) {
1461 av_log(ctx, AV_LOG_ERROR, "Failed to initialise VAAPI "
1462 "connection: %d (%s).\n", vas, vaErrorStr(vas));
1463 return AVERROR(EIO);
1465 av_log(ctx, AV_LOG_VERBOSE, "Initialised VAAPI connection: "
1466 "version %d.%d\n", major, minor);
1471 static int vaapi_device_create(AVHWDeviceContext *ctx, const char *device,
1472 AVDictionary *opts, int flags)
1474 VAAPIDevicePriv *priv;
1475 VADisplay display = NULL;
1476 const AVDictionaryEntry *ent;
1477 int try_drm, try_x11, try_all;
1479 priv = av_mallocz(sizeof(*priv));
1481 return AVERROR(ENOMEM);
1485 ctx->user_opaque = priv;
1486 ctx->free = vaapi_device_free;
1488 ent = av_dict_get(opts, "connection_type", NULL, 0);
1490 try_all = try_drm = try_x11 = 0;
1491 if (!strcmp(ent->value, "drm")) {
1493 } else if (!strcmp(ent->value, "x11")) {
1496 av_log(ctx, AV_LOG_ERROR, "Invalid connection type %s.\n",
1498 return AVERROR(EINVAL);
1502 try_drm = HAVE_VAAPI_DRM;
1503 try_x11 = HAVE_VAAPI_X11;
1507 while (!display && try_drm) {
1508 // If the device is specified, try to open it as a DRM device node.
1509 // If not, look for a usable render node, possibly restricted to those
1510 // using a specified kernel driver.
1511 int loglevel = try_all ? AV_LOG_VERBOSE : AV_LOG_ERROR;
1513 priv->drm_fd = open(device, O_RDWR);
1514 if (priv->drm_fd < 0) {
1515 av_log(ctx, loglevel, "Failed to open %s as "
1516 "DRM device node.\n", device);
1521 int n, max_devices = 8;
1523 const AVDictionaryEntry *kernel_driver;
1524 kernel_driver = av_dict_get(opts, "kernel_driver", NULL, 0);
1526 for (n = 0; n < max_devices; n++) {
1527 snprintf(path, sizeof(path),
1528 "/dev/dri/renderD%d", 128 + n);
1529 priv->drm_fd = open(path, O_RDWR);
1530 if (priv->drm_fd < 0) {
1531 av_log(ctx, AV_LOG_VERBOSE, "Cannot open "
1532 "DRM render node for device %d.\n", n);
1536 if (kernel_driver) {
1538 info = drmGetVersion(priv->drm_fd);
1539 if (strcmp(kernel_driver->value, info->name)) {
1540 av_log(ctx, AV_LOG_VERBOSE, "Ignoring device %d "
1541 "with non-matching kernel driver (%s).\n",
1543 drmFreeVersion(info);
1544 close(priv->drm_fd);
1548 av_log(ctx, AV_LOG_VERBOSE, "Trying to use "
1549 "DRM render node for device %d, "
1550 "with matching kernel driver (%s).\n",
1552 drmFreeVersion(info);
1556 av_log(ctx, AV_LOG_VERBOSE, "Trying to use "
1557 "DRM render node for device %d.\n", n);
1561 if (n >= max_devices)
1565 display = vaGetDisplayDRM(priv->drm_fd);
1567 av_log(ctx, AV_LOG_VERBOSE, "Cannot open a VA display "
1568 "from DRM device %s.\n", device);
1569 return AVERROR_EXTERNAL;
1576 if (!display && try_x11) {
1577 // Try to open the device as an X11 display.
1578 priv->x11_display = XOpenDisplay(device);
1579 if (!priv->x11_display) {
1580 av_log(ctx, AV_LOG_VERBOSE, "Cannot open X11 display "
1581 "%s.\n", XDisplayName(device));
1583 display = vaGetDisplay(priv->x11_display);
1585 av_log(ctx, AV_LOG_ERROR, "Cannot open a VA display "
1586 "from X11 display %s.\n", XDisplayName(device));
1587 return AVERROR_UNKNOWN;
1590 av_log(ctx, AV_LOG_VERBOSE, "Opened VA display via "
1591 "X11 display %s.\n", XDisplayName(device));
1598 av_log(ctx, AV_LOG_ERROR, "No VA display found for "
1599 "device %s.\n", device);
1601 av_log(ctx, AV_LOG_ERROR, "No VA display found for "
1602 "any default device.\n");
1603 return AVERROR(EINVAL);
1606 ent = av_dict_get(opts, "driver", NULL, 0);
1608 #if VA_CHECK_VERSION(0, 38, 0)
1610 vas = vaSetDriverName(display, ent->value);
1611 if (vas != VA_STATUS_SUCCESS) {
1612 av_log(ctx, AV_LOG_ERROR, "Failed to set driver name to "
1613 "%s: %d (%s).\n", ent->value, vas, vaErrorStr(vas));
1614 vaTerminate(display);
1615 return AVERROR_EXTERNAL;
1618 av_log(ctx, AV_LOG_WARNING, "Driver name setting is not "
1619 "supported with this VAAPI version.\n");
1623 return vaapi_device_connect(ctx, display);
1626 static int vaapi_device_derive(AVHWDeviceContext *ctx,
1627 AVHWDeviceContext *src_ctx,
1628 AVDictionary *opts, int flags)
1631 if (src_ctx->type == AV_HWDEVICE_TYPE_DRM) {
1632 AVDRMDeviceContext *src_hwctx = src_ctx->hwctx;
1634 VAAPIDevicePriv *priv;
1637 if (src_hwctx->fd < 0) {
1638 av_log(ctx, AV_LOG_ERROR, "DRM instance requires an associated "
1639 "device to derive a VA display from.\n");
1640 return AVERROR(EINVAL);
1645 int node_type = drmGetNodeTypeFromFd(src_hwctx->fd);
1647 if (node_type < 0) {
1648 av_log(ctx, AV_LOG_ERROR, "DRM instance fd does not appear "
1649 "to refer to a DRM device.\n");
1650 return AVERROR(EINVAL);
1652 if (node_type == DRM_NODE_RENDER) {
1655 render_node = drmGetRenderDeviceNameFromFd(src_hwctx->fd);
1657 av_log(ctx, AV_LOG_ERROR, "Failed to find a render node "
1658 "matching the DRM device.\n");
1659 return AVERROR(ENODEV);
1661 fd = open(render_node, O_RDWR);
1663 av_log(ctx, AV_LOG_ERROR, "Failed to open render node %s"
1664 "matching the DRM device.\n", render_node);
1666 return AVERROR(errno);
1668 av_log(ctx, AV_LOG_VERBOSE, "Using render node %s in place "
1669 "of non-render DRM device.\n", render_node);
1677 priv = av_mallocz(sizeof(*priv));
1679 return AVERROR(ENOMEM);
1681 if (fd == src_hwctx->fd) {
1682 // The fd is inherited from the source context and we are holding
1683 // a reference to that, we don't want to close it from here.
1689 ctx->user_opaque = priv;
1690 ctx->free = &vaapi_device_free;
1692 display = vaGetDisplayDRM(fd);
1694 av_log(ctx, AV_LOG_ERROR, "Failed to open a VA display from "
1696 return AVERROR(EIO);
1699 return vaapi_device_connect(ctx, display);
1702 return AVERROR(ENOSYS);
1705 const HWContextType ff_hwcontext_type_vaapi = {
1706 .type = AV_HWDEVICE_TYPE_VAAPI,
1709 .device_hwctx_size = sizeof(AVVAAPIDeviceContext),
1710 .device_priv_size = sizeof(VAAPIDeviceContext),
1711 .device_hwconfig_size = sizeof(AVVAAPIHWConfig),
1712 .frames_hwctx_size = sizeof(AVVAAPIFramesContext),
1713 .frames_priv_size = sizeof(VAAPIFramesContext),
1715 .device_create = &vaapi_device_create,
1716 .device_derive = &vaapi_device_derive,
1717 .device_init = &vaapi_device_init,
1718 .device_uninit = &vaapi_device_uninit,
1719 .frames_get_constraints = &vaapi_frames_get_constraints,
1720 .frames_init = &vaapi_frames_init,
1721 .frames_uninit = &vaapi_frames_uninit,
1722 .frames_get_buffer = &vaapi_get_buffer,
1723 .transfer_get_formats = &vaapi_transfer_get_formats,
1724 .transfer_data_to = &vaapi_transfer_data_to,
1725 .transfer_data_from = &vaapi_transfer_data_from,
1726 .map_to = &vaapi_map_to,
1727 .map_from = &vaapi_map_from,
1729 .pix_fmts = (const enum AVPixelFormat[]) {