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FFmpeg/libavcodec/vulkan_decode.c
Lynne db09f1a5d8
vulkan_av1: add workaround for NVIDIA drivers tested on broken CTS 
The first release of the CTS for AV1 decoding had incorrect
offsets for the OrderHints values.
The CTS will be fixed, and eventually, the drivers will be
updated to the proper spec-conforming behaviour, but we still
need to add a workaround as this will take months.

Only NVIDIA use these values at all, so limit the workaround
to only NVIDIA. Also, other vendors don't tend to provide accurate
CTS information.
2024-04-15 02:40:02 +02:00

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/*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "refstruct.h"
#include "vulkan_video.h"
#include "vulkan_decode.h"
#include "config_components.h"
#include "libavutil/avassert.h"
#include "libavutil/mem.h"
#include "libavutil/vulkan_loader.h"
#if CONFIG_H264_VULKAN_HWACCEL
extern const FFVulkanDecodeDescriptor ff_vk_dec_h264_desc;
#endif
#if CONFIG_HEVC_VULKAN_HWACCEL
extern const FFVulkanDecodeDescriptor ff_vk_dec_hevc_desc;
#endif
#if CONFIG_AV1_VULKAN_HWACCEL
extern const FFVulkanDecodeDescriptor ff_vk_dec_av1_desc;
#endif
static const FFVulkanDecodeDescriptor *dec_descs[] = {
#if CONFIG_H264_VULKAN_HWACCEL
&ff_vk_dec_h264_desc,
#endif
#if CONFIG_HEVC_VULKAN_HWACCEL
&ff_vk_dec_hevc_desc,
#endif
#if CONFIG_AV1_VULKAN_HWACCEL
&ff_vk_dec_av1_desc,
#endif
};
static const FFVulkanDecodeDescriptor *get_codecdesc(enum AVCodecID codec_id)
{
for (size_t i = 0; i < FF_ARRAY_ELEMS(dec_descs); i++)
if (dec_descs[i]->codec_id == codec_id)
return dec_descs[i];
av_assert1(!"no codec descriptor");
return NULL;
}
static const VkVideoProfileInfoKHR *get_video_profile(FFVulkanDecodeShared *ctx, enum AVCodecID codec_id)
{
const VkVideoProfileListInfoKHR *profile_list;
VkStructureType profile_struct_type =
codec_id == AV_CODEC_ID_H264 ? VK_STRUCTURE_TYPE_VIDEO_DECODE_H264_PROFILE_INFO_KHR :
codec_id == AV_CODEC_ID_HEVC ? VK_STRUCTURE_TYPE_VIDEO_DECODE_H265_PROFILE_INFO_KHR :
codec_id == AV_CODEC_ID_AV1 ? VK_STRUCTURE_TYPE_VIDEO_DECODE_AV1_PROFILE_INFO_KHR :
0;
profile_list = ff_vk_find_struct(ctx->s.hwfc->create_pnext,
VK_STRUCTURE_TYPE_VIDEO_PROFILE_LIST_INFO_KHR);
if (!profile_list)
return NULL;
for (int i = 0; i < profile_list->profileCount; i++)
if (ff_vk_find_struct(profile_list->pProfiles[i].pNext, profile_struct_type))
return &profile_list->pProfiles[i];
return NULL;
}
int ff_vk_update_thread_context(AVCodecContext *dst, const AVCodecContext *src)
{
int err;
FFVulkanDecodeContext *src_ctx = src->internal->hwaccel_priv_data;
FFVulkanDecodeContext *dst_ctx = dst->internal->hwaccel_priv_data;
if (!dst_ctx->exec_pool.cmd_bufs) {
FFVulkanDecodeShared *ctx = src_ctx->shared_ctx;
const VkVideoProfileInfoKHR *profile = get_video_profile(ctx, dst->codec_id);
if (!profile) {
av_log(dst, AV_LOG_ERROR, "Video profile missing from frames context!");
return AVERROR(EINVAL);
}
err = ff_vk_exec_pool_init(&ctx->s, &ctx->qf,
&dst_ctx->exec_pool,
src_ctx->exec_pool.pool_size,
src_ctx->exec_pool.nb_queries,
VK_QUERY_TYPE_RESULT_STATUS_ONLY_KHR, 0,
profile);
if (err < 0)
return err;
}
ff_refstruct_replace(&dst_ctx->shared_ctx, src_ctx->shared_ctx);
if (src_ctx->session_params) {
err = av_buffer_replace(&dst_ctx->session_params, src_ctx->session_params);
if (err < 0)
return err;
}
dst_ctx->dedicated_dpb = src_ctx->dedicated_dpb;
dst_ctx->layered_dpb = src_ctx->layered_dpb;
dst_ctx->external_fg = src_ctx->external_fg;
dst_ctx->frame_id_alloc_mask = src_ctx->frame_id_alloc_mask;
return 0;
}
int ff_vk_params_invalidate(AVCodecContext *avctx, int t, const uint8_t *b, uint32_t s)
{
FFVulkanDecodeContext *dec = avctx->internal->hwaccel_priv_data;
av_buffer_unref(&dec->session_params);
return 0;
}
static int vk_decode_create_view(FFVulkanDecodeContext *dec, VkImageView *dst_view,
VkImageAspectFlags *aspect, AVVkFrame *src,
VkFormat vkf, int is_current)
{
VkResult ret;
FFVulkanDecodeShared *ctx = dec->shared_ctx;
FFVulkanFunctions *vk = &ctx->s.vkfn;
VkImageAspectFlags aspect_mask = ff_vk_aspect_bits_from_vkfmt(vkf);
VkSamplerYcbcrConversionInfo yuv_sampler_info = {
.sType = VK_STRUCTURE_TYPE_SAMPLER_YCBCR_CONVERSION_INFO,
.conversion = ctx->yuv_sampler,
};
VkImageViewCreateInfo img_view_create_info = {
.sType = VK_STRUCTURE_TYPE_IMAGE_VIEW_CREATE_INFO,
.pNext = &yuv_sampler_info,
.viewType = dec->layered_dpb && !is_current ?
VK_IMAGE_VIEW_TYPE_2D_ARRAY : VK_IMAGE_VIEW_TYPE_2D,
.format = vkf,
.image = src->img[0],
.components = (VkComponentMapping) {
.r = VK_COMPONENT_SWIZZLE_IDENTITY,
.g = VK_COMPONENT_SWIZZLE_IDENTITY,
.b = VK_COMPONENT_SWIZZLE_IDENTITY,
.a = VK_COMPONENT_SWIZZLE_IDENTITY,
},
.subresourceRange = (VkImageSubresourceRange) {
.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT,
.baseArrayLayer = 0,
.layerCount = dec->layered_dpb && !is_current ?
VK_REMAINING_ARRAY_LAYERS : 1,
.levelCount = 1,
},
};
ret = vk->CreateImageView(ctx->s.hwctx->act_dev, &img_view_create_info,
ctx->s.hwctx->alloc, dst_view);
if (ret != VK_SUCCESS)
return AVERROR_EXTERNAL;
*aspect = aspect_mask;
return 0;
}
static AVFrame *vk_get_dpb_pool(FFVulkanDecodeShared *ctx)
{
int err;
AVFrame *avf = av_frame_alloc();
if (!avf)
return NULL;
err = av_hwframe_get_buffer(ctx->dpb_hwfc_ref, avf, 0x0);
if (err < 0)
av_frame_free(&avf);
return avf;
}
int ff_vk_decode_prepare_frame(FFVulkanDecodeContext *dec, AVFrame *pic,
FFVulkanDecodePicture *vkpic, int is_current,
int alloc_dpb)
{
int err;
FFVulkanDecodeShared *ctx = dec->shared_ctx;
FFVulkanFunctions *vk = &ctx->s.vkfn;
vkpic->slices_size = 0;
/* If the decoder made a blank frame to make up for a missing ref, or the
* frame is the current frame so it's missing one, create a re-representation */
if (vkpic->img_view_ref)
return 0;
vkpic->dpb_frame = NULL;
vkpic->img_view_ref = VK_NULL_HANDLE;
vkpic->img_view_out = VK_NULL_HANDLE;
vkpic->img_view_dest = VK_NULL_HANDLE;
vkpic->destroy_image_view = vk->DestroyImageView;
vkpic->wait_semaphores = vk->WaitSemaphores;
if (dec->layered_dpb && alloc_dpb) {
vkpic->img_view_ref = ctx->layered_view;
vkpic->img_aspect_ref = ctx->layered_aspect;
} else if (alloc_dpb) {
AVHWFramesContext *dpb_frames = (AVHWFramesContext *)ctx->dpb_hwfc_ref->data;
AVVulkanFramesContext *dpb_hwfc = dpb_frames->hwctx;
vkpic->dpb_frame = vk_get_dpb_pool(ctx);
if (!vkpic->dpb_frame)
return AVERROR(ENOMEM);
err = vk_decode_create_view(dec, &vkpic->img_view_ref,
&vkpic->img_aspect_ref,
(AVVkFrame *)vkpic->dpb_frame->data[0],
dpb_hwfc->format[0], is_current);
if (err < 0)
return err;
vkpic->img_view_dest = vkpic->img_view_ref;
}
if (!alloc_dpb || is_current) {
AVHWFramesContext *frames = (AVHWFramesContext *)pic->hw_frames_ctx->data;
AVVulkanFramesContext *hwfc = frames->hwctx;
err = vk_decode_create_view(dec, &vkpic->img_view_out,
&vkpic->img_aspect,
(AVVkFrame *)pic->data[0],
hwfc->format[0], is_current);
if (err < 0)
return err;
if (!alloc_dpb) {
vkpic->img_view_ref = vkpic->img_view_out;
vkpic->img_aspect_ref = vkpic->img_aspect;
}
}
return 0;
}
int ff_vk_decode_add_slice(AVCodecContext *avctx, FFVulkanDecodePicture *vp,
const uint8_t *data, size_t size, int add_startcode,
uint32_t *nb_slices, const uint32_t **offsets)
{
FFVulkanDecodeContext *dec = avctx->internal->hwaccel_priv_data;
FFVulkanDecodeShared *ctx = dec->shared_ctx;
static const uint8_t startcode_prefix[3] = { 0x0, 0x0, 0x1 };
const size_t startcode_len = add_startcode ? sizeof(startcode_prefix) : 0;
const int nb = *nb_slices;
uint8_t *slices;
uint32_t *slice_off;
FFVkVideoBuffer *vkbuf;
size_t new_size = vp->slices_size + startcode_len + size +
ctx->caps.minBitstreamBufferSizeAlignment;
new_size = FFALIGN(new_size, ctx->caps.minBitstreamBufferSizeAlignment);
slice_off = av_fast_realloc(dec->slice_off, &dec->slice_off_max,
(nb + 1)*sizeof(slice_off));
if (!slice_off)
return AVERROR(ENOMEM);
*offsets = dec->slice_off = slice_off;
slice_off[nb] = vp->slices_size;
vkbuf = vp->slices_buf ? (FFVkVideoBuffer *)vp->slices_buf->data : NULL;
if (!vkbuf || vkbuf->buf.size < new_size) {
int err;
AVBufferRef *new_ref;
FFVkVideoBuffer *new_buf;
err = ff_vk_video_get_buffer(&ctx->s, &ctx->common, &new_ref,
VK_BUFFER_USAGE_VIDEO_DECODE_SRC_BIT_KHR,
ctx->s.hwfc->create_pnext, new_size);
if (err < 0)
return err;
new_buf = (FFVkVideoBuffer *)new_ref->data;
/* Copy data from the old buffer */
if (vkbuf) {
memcpy(new_buf->mem, vkbuf->mem, vp->slices_size);
av_buffer_unref(&vp->slices_buf);
}
vp->slices_buf = new_ref;
vkbuf = new_buf;
}
slices = vkbuf->mem;
/* Startcode */
memcpy(slices + vp->slices_size, startcode_prefix, startcode_len);
/* Slice data */
memcpy(slices + vp->slices_size + startcode_len, data, size);
*nb_slices = nb + 1;
vp->slices_size += startcode_len + size;
return 0;
}
void ff_vk_decode_flush(AVCodecContext *avctx)
{
FFVulkanDecodeContext *dec = avctx->internal->hwaccel_priv_data;
FFVulkanDecodeShared *ctx = dec->shared_ctx;
FFVulkanFunctions *vk = &ctx->s.vkfn;
VkVideoBeginCodingInfoKHR decode_start = {
.sType = VK_STRUCTURE_TYPE_VIDEO_BEGIN_CODING_INFO_KHR,
.videoSession = ctx->common.session,
.videoSessionParameters = ctx->empty_session_params,
};
VkVideoCodingControlInfoKHR decode_ctrl = {
.sType = VK_STRUCTURE_TYPE_VIDEO_CODING_CONTROL_INFO_KHR,
.flags = VK_VIDEO_CODING_CONTROL_RESET_BIT_KHR,
};
VkVideoEndCodingInfoKHR decode_end = {
.sType = VK_STRUCTURE_TYPE_VIDEO_END_CODING_INFO_KHR,
};
VkCommandBuffer cmd_buf;
FFVkExecContext *exec = ff_vk_exec_get(&dec->exec_pool);
ff_vk_exec_start(&ctx->s, exec);
cmd_buf = exec->buf;
vk->CmdBeginVideoCodingKHR(cmd_buf, &decode_start);
vk->CmdControlVideoCodingKHR(cmd_buf, &decode_ctrl);
vk->CmdEndVideoCodingKHR(cmd_buf, &decode_end);
ff_vk_exec_submit(&ctx->s, exec);
}
int ff_vk_decode_frame(AVCodecContext *avctx,
AVFrame *pic, FFVulkanDecodePicture *vp,
AVFrame *rpic[], FFVulkanDecodePicture *rvkp[])
{
int err;
VkResult ret;
VkCommandBuffer cmd_buf;
FFVkVideoBuffer *sd_buf;
FFVulkanDecodeContext *dec = avctx->internal->hwaccel_priv_data;
FFVulkanDecodeShared *ctx = dec->shared_ctx;
FFVulkanFunctions *vk = &ctx->s.vkfn;
/* Output */
AVVkFrame *vkf = (AVVkFrame *)pic->buf[0]->data;
/* Quirks */
const int layered_dpb = dec->layered_dpb;
VkVideoSessionParametersKHR *par = (VkVideoSessionParametersKHR *)dec->session_params->data;
VkVideoBeginCodingInfoKHR decode_start = {
.sType = VK_STRUCTURE_TYPE_VIDEO_BEGIN_CODING_INFO_KHR,
.videoSession = ctx->common.session,
.videoSessionParameters = *par,
.referenceSlotCount = vp->decode_info.referenceSlotCount,
.pReferenceSlots = vp->decode_info.pReferenceSlots,
};
VkVideoEndCodingInfoKHR decode_end = {
.sType = VK_STRUCTURE_TYPE_VIDEO_END_CODING_INFO_KHR,
};
VkImageMemoryBarrier2 img_bar[37];
int nb_img_bar = 0;
size_t data_size = FFALIGN(vp->slices_size,
ctx->caps.minBitstreamBufferSizeAlignment);
FFVkExecContext *exec = ff_vk_exec_get(&dec->exec_pool);
/* The current decoding reference has to be bound as an inactive reference */
VkVideoReferenceSlotInfoKHR *cur_vk_ref;
cur_vk_ref = (void *)&decode_start.pReferenceSlots[decode_start.referenceSlotCount];
cur_vk_ref[0] = vp->ref_slot;
cur_vk_ref[0].slotIndex = -1;
decode_start.referenceSlotCount++;
if (dec->exec_pool.nb_queries) {
int64_t prev_sub_res = 0;
ff_vk_exec_wait(&ctx->s, exec);
ret = ff_vk_exec_get_query(&ctx->s, exec, NULL, &prev_sub_res);
if (ret != VK_NOT_READY && ret != VK_SUCCESS) {
av_log(avctx, AV_LOG_ERROR, "Unable to perform query: %s!\n",
ff_vk_ret2str(ret));
return AVERROR_EXTERNAL;
}
if (ret == VK_SUCCESS)
av_log(avctx, prev_sub_res < 0 ? AV_LOG_ERROR : AV_LOG_DEBUG,
"Result of previous frame decoding: %"PRId64"\n", prev_sub_res);
}
sd_buf = (FFVkVideoBuffer *)vp->slices_buf->data;
/* Flush if needed */
if (!(sd_buf->buf.flags & VK_MEMORY_PROPERTY_HOST_COHERENT_BIT)) {
VkMappedMemoryRange flush_buf = {
.sType = VK_STRUCTURE_TYPE_MAPPED_MEMORY_RANGE,
.memory = sd_buf->buf.mem,
.offset = 0,
.size = FFALIGN(vp->slices_size,
ctx->s.props.properties.limits.nonCoherentAtomSize),
};
ret = vk->FlushMappedMemoryRanges(ctx->s.hwctx->act_dev, 1, &flush_buf);
if (ret != VK_SUCCESS) {
av_log(avctx, AV_LOG_ERROR, "Failed to flush memory: %s\n",
ff_vk_ret2str(ret));
return AVERROR_EXTERNAL;
}
}
vp->decode_info.srcBuffer = sd_buf->buf.buf;
vp->decode_info.srcBufferOffset = 0;
vp->decode_info.srcBufferRange = data_size;
/* Start command buffer recording */
err = ff_vk_exec_start(&ctx->s, exec);
if (err < 0)
return err;
cmd_buf = exec->buf;
/* Slices */
err = ff_vk_exec_add_dep_buf(&ctx->s, exec, &vp->slices_buf, 1, 0);
if (err < 0)
return err;
vp->slices_buf = NULL; /* Owned by the exec buffer from now on */
/* Parameters */
err = ff_vk_exec_add_dep_buf(&ctx->s, exec, &dec->session_params, 1, 1);
if (err < 0)
return err;
err = ff_vk_exec_add_dep_frame(&ctx->s, exec, pic,
VK_PIPELINE_STAGE_2_VIDEO_DECODE_BIT_KHR,
VK_PIPELINE_STAGE_2_VIDEO_DECODE_BIT_KHR);
if (err < 0)
return err;
err = ff_vk_exec_mirror_sem_value(&ctx->s, exec, &vp->sem, &vp->sem_value,
pic);
if (err < 0)
return err;
/* Output image - change layout, as it comes from a pool */
img_bar[nb_img_bar] = (VkImageMemoryBarrier2) {
.sType = VK_STRUCTURE_TYPE_IMAGE_MEMORY_BARRIER_2,
.pNext = NULL,
.srcStageMask = VK_PIPELINE_STAGE_2_VIDEO_DECODE_BIT_KHR,
.dstStageMask = VK_PIPELINE_STAGE_2_VIDEO_DECODE_BIT_KHR,
.srcAccessMask = VK_ACCESS_2_NONE,
.dstAccessMask = VK_ACCESS_2_VIDEO_DECODE_WRITE_BIT_KHR,
.oldLayout = vkf->layout[0],
.newLayout = (dec->layered_dpb || vp->dpb_frame) ?
VK_IMAGE_LAYOUT_VIDEO_DECODE_DST_KHR :
VK_IMAGE_LAYOUT_VIDEO_DECODE_DPB_KHR, /* Spec, 07252 utter madness */
.srcQueueFamilyIndex = vkf->queue_family[0],
.dstQueueFamilyIndex = VK_QUEUE_FAMILY_IGNORED,
.image = vkf->img[0],
.subresourceRange = (VkImageSubresourceRange) {
.aspectMask = vp->img_aspect,
.layerCount = 1,
.levelCount = 1,
},
};
ff_vk_exec_update_frame(&ctx->s, exec, pic,
&img_bar[nb_img_bar], &nb_img_bar);
/* Reference for the current image, if existing and not layered */
if (vp->dpb_frame) {
err = ff_vk_exec_add_dep_frame(&ctx->s, exec, vp->dpb_frame,
VK_PIPELINE_STAGE_2_VIDEO_DECODE_BIT_KHR,
VK_PIPELINE_STAGE_2_VIDEO_DECODE_BIT_KHR);
if (err < 0)
return err;
}
if (!layered_dpb) {
/* All references (apart from the current) for non-layered refs */
for (int i = 0; i < vp->decode_info.referenceSlotCount; i++) {
AVFrame *ref_frame = rpic[i];
FFVulkanDecodePicture *rvp = rvkp[i];
AVFrame *ref = rvp->dpb_frame ? rvp->dpb_frame : ref_frame;
err = ff_vk_exec_add_dep_frame(&ctx->s, exec, ref,
VK_PIPELINE_STAGE_2_VIDEO_DECODE_BIT_KHR,
VK_PIPELINE_STAGE_2_VIDEO_DECODE_BIT_KHR);
if (err < 0)
return err;
if (err == 0) {
err = ff_vk_exec_mirror_sem_value(&ctx->s, exec,
&rvp->sem, &rvp->sem_value,
ref);
if (err < 0)
return err;
}
if (!rvp->dpb_frame) {
AVVkFrame *rvkf = (AVVkFrame *)ref->data[0];
img_bar[nb_img_bar] = (VkImageMemoryBarrier2) {
.sType = VK_STRUCTURE_TYPE_IMAGE_MEMORY_BARRIER_2,
.pNext = NULL,
.srcStageMask = VK_PIPELINE_STAGE_2_VIDEO_DECODE_BIT_KHR,
.dstStageMask = VK_PIPELINE_STAGE_2_VIDEO_DECODE_BIT_KHR,
.srcAccessMask = VK_ACCESS_2_NONE,
.dstAccessMask = VK_ACCESS_2_VIDEO_DECODE_READ_BIT_KHR |
VK_ACCESS_2_VIDEO_DECODE_WRITE_BIT_KHR,
.oldLayout = rvkf->layout[0],
.newLayout = VK_IMAGE_LAYOUT_VIDEO_DECODE_DPB_KHR,
.srcQueueFamilyIndex = rvkf->queue_family[0],
.dstQueueFamilyIndex = VK_QUEUE_FAMILY_IGNORED,
.image = rvkf->img[0],
.subresourceRange = (VkImageSubresourceRange) {
.aspectMask = rvp->img_aspect_ref,
.layerCount = 1,
.levelCount = 1,
},
};
ff_vk_exec_update_frame(&ctx->s, exec, ref,
&img_bar[nb_img_bar], &nb_img_bar);
}
}
} else if (vp->decode_info.referenceSlotCount ||
vp->img_view_out != vp->img_view_ref) {
/* Single barrier for a single layered ref */
err = ff_vk_exec_add_dep_frame(&ctx->s, exec, ctx->layered_frame,
VK_PIPELINE_STAGE_2_VIDEO_DECODE_BIT_KHR,
VK_PIPELINE_STAGE_2_VIDEO_DECODE_BIT_KHR);
if (err < 0)
return err;
}
/* Change image layout */
vk->CmdPipelineBarrier2(cmd_buf, &(VkDependencyInfo) {
.sType = VK_STRUCTURE_TYPE_DEPENDENCY_INFO,
.dependencyFlags = VK_DEPENDENCY_BY_REGION_BIT,
.pImageMemoryBarriers = img_bar,
.imageMemoryBarrierCount = nb_img_bar,
});
/* Start, use parameters, decode and end decoding */
vk->CmdBeginVideoCodingKHR(cmd_buf, &decode_start);
/* Start status query */
if (dec->exec_pool.nb_queries)
vk->CmdBeginQuery(cmd_buf, dec->exec_pool.query_pool, exec->query_idx + 0, 0);
vk->CmdDecodeVideoKHR(cmd_buf, &vp->decode_info);
/* End status query */
if (dec->exec_pool.nb_queries)
vk->CmdEndQuery(cmd_buf, dec->exec_pool.query_pool, exec->query_idx + 0);
vk->CmdEndVideoCodingKHR(cmd_buf, &decode_end);
/* End recording and submit for execution */
return ff_vk_exec_submit(&ctx->s, exec);
}
void ff_vk_decode_free_frame(AVHWDeviceContext *dev_ctx, FFVulkanDecodePicture *vp)
{
AVVulkanDeviceContext *hwctx = dev_ctx->hwctx;
VkSemaphoreWaitInfo sem_wait = (VkSemaphoreWaitInfo) {
.sType = VK_STRUCTURE_TYPE_SEMAPHORE_WAIT_INFO,
.pSemaphores = &vp->sem,
.pValues = &vp->sem_value,
.semaphoreCount = 1,
};
/* We do not have to lock the frame here because we're not interested
* in the actual current semaphore value, but only that it's later than
* the time we submitted the image for decoding. */
if (vp->sem)
vp->wait_semaphores(hwctx->act_dev, &sem_wait, UINT64_MAX);
/* Free slices data */
av_buffer_unref(&vp->slices_buf);
/* Destroy image view (out) */
if (vp->img_view_out && vp->img_view_out != vp->img_view_dest)
vp->destroy_image_view(hwctx->act_dev, vp->img_view_out, hwctx->alloc);
/* Destroy image view (ref, unlayered) */
if (vp->img_view_dest)
vp->destroy_image_view(hwctx->act_dev, vp->img_view_dest, hwctx->alloc);
av_frame_free(&vp->dpb_frame);
}
static void free_common(FFRefStructOpaque unused, void *obj)
{
FFVulkanDecodeShared *ctx = obj;
FFVulkanContext *s = &ctx->s;
FFVulkanFunctions *vk = &ctx->s.vkfn;
/* Destroy layered view */
if (ctx->layered_view)
vk->DestroyImageView(s->hwctx->act_dev, ctx->layered_view, s->hwctx->alloc);
/* This also frees all references from this pool */
av_frame_free(&ctx->layered_frame);
av_buffer_unref(&ctx->dpb_hwfc_ref);
/* Destroy parameters */
if (ctx->empty_session_params)
vk->DestroyVideoSessionParametersKHR(s->hwctx->act_dev,
ctx->empty_session_params,
s->hwctx->alloc);
ff_vk_video_common_uninit(s, &ctx->common);
if (ctx->yuv_sampler)
vk->DestroySamplerYcbcrConversion(s->hwctx->act_dev, ctx->yuv_sampler,
s->hwctx->alloc);
ff_vk_uninit(s);
}
static int vulkan_decode_bootstrap(AVCodecContext *avctx, AVBufferRef *frames_ref)
{
int err;
FFVulkanDecodeContext *dec = avctx->internal->hwaccel_priv_data;
AVHWFramesContext *frames = (AVHWFramesContext *)frames_ref->data;
AVHWDeviceContext *device = (AVHWDeviceContext *)frames->device_ref->data;
AVVulkanDeviceContext *hwctx = device->hwctx;
FFVulkanDecodeShared *ctx;
if (dec->shared_ctx)
return 0;
dec->shared_ctx = ff_refstruct_alloc_ext(sizeof(*ctx), 0, NULL,
free_common);
if (!dec->shared_ctx)
return AVERROR(ENOMEM);
ctx = dec->shared_ctx;
ctx->s.extensions = ff_vk_extensions_to_mask(hwctx->enabled_dev_extensions,
hwctx->nb_enabled_dev_extensions);
if (!(ctx->s.extensions & FF_VK_EXT_VIDEO_DECODE_QUEUE)) {
av_log(avctx, AV_LOG_ERROR, "Device does not support the %s extension!\n",
VK_KHR_VIDEO_DECODE_QUEUE_EXTENSION_NAME);
ff_refstruct_unref(&dec->shared_ctx);
return AVERROR(ENOSYS);
}
err = ff_vk_load_functions(device, &ctx->s.vkfn, ctx->s.extensions, 1, 1);
if (err < 0) {
ff_refstruct_unref(&dec->shared_ctx);
return err;
}
return 0;
}
static VkResult vulkan_setup_profile(AVCodecContext *avctx,
FFVulkanDecodeProfileData *prof,
AVVulkanDeviceContext *hwctx,
FFVulkanFunctions *vk,
const FFVulkanDecodeDescriptor *vk_desc,
VkVideoDecodeH264CapabilitiesKHR *h264_caps,
VkVideoDecodeH265CapabilitiesKHR *h265_caps,
VkVideoDecodeAV1CapabilitiesKHR *av1_caps,
VkVideoCapabilitiesKHR *caps,
VkVideoDecodeCapabilitiesKHR *dec_caps,
int cur_profile)
{
VkVideoDecodeUsageInfoKHR *usage = &prof->usage;
VkVideoProfileInfoKHR *profile = &prof->profile;
VkVideoProfileListInfoKHR *profile_list = &prof->profile_list;
VkVideoDecodeH264ProfileInfoKHR *h264_profile = &prof->h264_profile;
VkVideoDecodeH265ProfileInfoKHR *h265_profile = &prof->h265_profile;
VkVideoDecodeAV1ProfileInfoKHR *av1_profile = &prof->av1_profile;
const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(avctx->sw_pix_fmt);
if (!desc)
return AVERROR(EINVAL);
if (avctx->codec_id == AV_CODEC_ID_H264) {
dec_caps->pNext = h264_caps;
usage->pNext = h264_profile;
h264_profile->sType = VK_STRUCTURE_TYPE_VIDEO_DECODE_H264_PROFILE_INFO_KHR;
/* Vulkan transmits all the constrant_set flags, rather than wanting them
* merged in the profile IDC */
h264_profile->stdProfileIdc = cur_profile & ~(AV_PROFILE_H264_CONSTRAINED |
AV_PROFILE_H264_INTRA);
h264_profile->pictureLayout = avctx->field_order == AV_FIELD_UNKNOWN ||
avctx->field_order == AV_FIELD_PROGRESSIVE ?
VK_VIDEO_DECODE_H264_PICTURE_LAYOUT_PROGRESSIVE_KHR :
VK_VIDEO_DECODE_H264_PICTURE_LAYOUT_INTERLACED_INTERLEAVED_LINES_BIT_KHR;
} else if (avctx->codec_id == AV_CODEC_ID_H265) {
dec_caps->pNext = h265_caps;
usage->pNext = h265_profile;
h265_profile->sType = VK_STRUCTURE_TYPE_VIDEO_DECODE_H265_PROFILE_INFO_KHR;
h265_profile->stdProfileIdc = cur_profile;
} else if (avctx->codec_id == AV_CODEC_ID_AV1) {
dec_caps->pNext = av1_caps;
usage->pNext = av1_profile;
av1_profile->sType = VK_STRUCTURE_TYPE_VIDEO_DECODE_AV1_PROFILE_INFO_KHR;
av1_profile->stdProfile = cur_profile;
av1_profile->filmGrainSupport = !(avctx->export_side_data & AV_CODEC_EXPORT_DATA_FILM_GRAIN);
}
usage->sType = VK_STRUCTURE_TYPE_VIDEO_DECODE_USAGE_INFO_KHR;
usage->videoUsageHints = VK_VIDEO_DECODE_USAGE_DEFAULT_KHR;
profile->sType = VK_STRUCTURE_TYPE_VIDEO_PROFILE_INFO_KHR;
profile->pNext = usage;
profile->videoCodecOperation = vk_desc->decode_op;
profile->chromaSubsampling = ff_vk_subsampling_from_av_desc(desc);
profile->lumaBitDepth = ff_vk_depth_from_av_depth(desc->comp[0].depth);
profile->chromaBitDepth = profile->lumaBitDepth;
profile_list->sType = VK_STRUCTURE_TYPE_VIDEO_PROFILE_LIST_INFO_KHR;
profile_list->profileCount = 1;
profile_list->pProfiles = profile;
/* Get the capabilities of the decoder for the given profile */
caps->sType = VK_STRUCTURE_TYPE_VIDEO_CAPABILITIES_KHR;
caps->pNext = dec_caps;
dec_caps->sType = VK_STRUCTURE_TYPE_VIDEO_DECODE_CAPABILITIES_KHR;
/* dec_caps->pNext already filled in */
return vk->GetPhysicalDeviceVideoCapabilitiesKHR(hwctx->phys_dev, profile,
caps);
}
static int vulkan_decode_get_profile(AVCodecContext *avctx, AVBufferRef *frames_ref,
enum AVPixelFormat *pix_fmt, VkFormat *vk_fmt,
FFVulkanDecodeProfileData *prof,
int *dpb_dedicate)
{
VkResult ret;
int max_level, base_profile, cur_profile;
const FFVulkanDecodeDescriptor *vk_desc = get_codecdesc(avctx->codec_id);
AVHWFramesContext *frames = (AVHWFramesContext *)frames_ref->data;
AVHWDeviceContext *device = (AVHWDeviceContext *)frames->device_ref->data;
AVVulkanDeviceContext *hwctx = device->hwctx;
enum AVPixelFormat source_format;
enum AVPixelFormat best_format;
VkFormat best_vkfmt;
FFVulkanDecodeContext *dec = avctx->internal->hwaccel_priv_data;
FFVulkanDecodeShared *ctx = dec->shared_ctx;
FFVulkanFunctions *vk = &ctx->s.vkfn;
VkVideoCapabilitiesKHR *caps = &ctx->caps;
VkVideoDecodeCapabilitiesKHR *dec_caps = &ctx->dec_caps;
VkVideoDecodeH264CapabilitiesKHR h264_caps = {
.sType = VK_STRUCTURE_TYPE_VIDEO_DECODE_H264_CAPABILITIES_KHR,
};
VkVideoDecodeH265CapabilitiesKHR h265_caps = {
.sType = VK_STRUCTURE_TYPE_VIDEO_DECODE_H265_CAPABILITIES_KHR,
};
VkVideoDecodeAV1CapabilitiesKHR av1_caps = {
.sType = VK_STRUCTURE_TYPE_VIDEO_DECODE_AV1_CAPABILITIES_KHR,
};
VkPhysicalDeviceVideoFormatInfoKHR fmt_info = {
.sType = VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_VIDEO_FORMAT_INFO_KHR,
.pNext = &prof->profile_list,
};
VkVideoFormatPropertiesKHR *ret_info;
uint32_t nb_out_fmts = 0;
if (!(vk_desc->decode_extension & ctx->s.extensions)) {
av_log(avctx, AV_LOG_ERROR, "Device does not support decoding %s!\n",
avcodec_get_name(avctx->codec_id));
return AVERROR(ENOSYS);
}
cur_profile = avctx->profile;
base_profile = avctx->codec_id == AV_CODEC_ID_H264 ? AV_PROFILE_H264_CONSTRAINED_BASELINE :
avctx->codec_id == AV_CODEC_ID_H265 ? AV_PROFILE_HEVC_MAIN :
avctx->codec_id == AV_CODEC_ID_AV1 ? STD_VIDEO_AV1_PROFILE_MAIN :
0;
ret = vulkan_setup_profile(avctx, prof, hwctx, vk, vk_desc,
&h264_caps,
&h265_caps,
&av1_caps,
caps,
dec_caps,
cur_profile);
if (ret == VK_ERROR_VIDEO_PROFILE_OPERATION_NOT_SUPPORTED_KHR &&
avctx->flags & AV_HWACCEL_FLAG_ALLOW_PROFILE_MISMATCH &&
avctx->profile != base_profile) {
av_log(avctx, AV_LOG_VERBOSE, "%s profile %s not supported, attempting "
"again with profile %s\n",
avcodec_get_name(avctx->codec_id),
avcodec_profile_name(avctx->codec_id, cur_profile),
avcodec_profile_name(avctx->codec_id, base_profile));
cur_profile = base_profile;
ret = vulkan_setup_profile(avctx, prof, hwctx, vk, vk_desc,
&h264_caps,
&h265_caps,
&av1_caps,
caps,
dec_caps,
cur_profile);
}
if (ret == VK_ERROR_VIDEO_PROFILE_OPERATION_NOT_SUPPORTED_KHR) {
av_log(avctx, AV_LOG_VERBOSE, "Unable to initialize video session: "
"%s profile \"%s\" not supported!\n",
avcodec_get_name(avctx->codec_id),
avcodec_profile_name(avctx->codec_id, cur_profile));
return AVERROR(EINVAL);
} else if (ret == VK_ERROR_VIDEO_PROFILE_FORMAT_NOT_SUPPORTED_KHR) {
av_log(avctx, AV_LOG_VERBOSE, "Unable to initialize video session: "
"format (%s) not supported!\n",
av_get_pix_fmt_name(avctx->sw_pix_fmt));
return AVERROR(EINVAL);
} else if (ret == VK_ERROR_FEATURE_NOT_PRESENT ||
ret == VK_ERROR_FORMAT_NOT_SUPPORTED) {
return AVERROR(EINVAL);
} else if (ret != VK_SUCCESS) {
return AVERROR_EXTERNAL;
}
max_level = avctx->codec_id == AV_CODEC_ID_H264 ? ff_vk_h264_level_to_av(h264_caps.maxLevelIdc) :
avctx->codec_id == AV_CODEC_ID_H265 ? ff_vk_h265_level_to_av(h265_caps.maxLevelIdc) :
avctx->codec_id == AV_CODEC_ID_AV1 ? av1_caps.maxLevel :
0;
av_log(avctx, AV_LOG_VERBOSE, "Decoder capabilities for %s profile \"%s\":\n",
avcodec_get_name(avctx->codec_id),
avcodec_profile_name(avctx->codec_id, cur_profile));
av_log(avctx, AV_LOG_VERBOSE, " Maximum level: %i (stream %i)\n",
max_level, avctx->level);
av_log(avctx, AV_LOG_VERBOSE, " Width: from %i to %i\n",
caps->minCodedExtent.width, caps->maxCodedExtent.width);
av_log(avctx, AV_LOG_VERBOSE, " Height: from %i to %i\n",
caps->minCodedExtent.height, caps->maxCodedExtent.height);
av_log(avctx, AV_LOG_VERBOSE, " Width alignment: %i\n",
caps->pictureAccessGranularity.width);
av_log(avctx, AV_LOG_VERBOSE, " Height alignment: %i\n",
caps->pictureAccessGranularity.height);
av_log(avctx, AV_LOG_VERBOSE, " Bitstream offset alignment: %"PRIu64"\n",
caps->minBitstreamBufferOffsetAlignment);
av_log(avctx, AV_LOG_VERBOSE, " Bitstream size alignment: %"PRIu64"\n",
caps->minBitstreamBufferSizeAlignment);
av_log(avctx, AV_LOG_VERBOSE, " Maximum references: %u\n",
caps->maxDpbSlots);
av_log(avctx, AV_LOG_VERBOSE, " Maximum active references: %u\n",
caps->maxActiveReferencePictures);
av_log(avctx, AV_LOG_VERBOSE, " Codec header name: '%s' (driver), '%s' (compiled)\n",
caps->stdHeaderVersion.extensionName,
vk_desc->ext_props.extensionName);
av_log(avctx, AV_LOG_VERBOSE, " Codec header version: %i.%i.%i (driver), %i.%i.%i (compiled)\n",
CODEC_VER(caps->stdHeaderVersion.specVersion),
CODEC_VER(vk_desc->ext_props.specVersion));
av_log(avctx, AV_LOG_VERBOSE, " Decode modes:%s%s%s\n",
dec_caps->flags ? "" :
" invalid",
dec_caps->flags & VK_VIDEO_DECODE_CAPABILITY_DPB_AND_OUTPUT_COINCIDE_BIT_KHR ?
" reuse_dst_dpb" : "",
dec_caps->flags & VK_VIDEO_DECODE_CAPABILITY_DPB_AND_OUTPUT_DISTINCT_BIT_KHR ?
" dedicated_dpb" : "");
av_log(avctx, AV_LOG_VERBOSE, " Capability flags:%s%s%s\n",
caps->flags ? "" :
" none",
caps->flags & VK_VIDEO_CAPABILITY_PROTECTED_CONTENT_BIT_KHR ?
" protected" : "",
caps->flags & VK_VIDEO_CAPABILITY_SEPARATE_REFERENCE_IMAGES_BIT_KHR ?
" separate_references" : "");
/* Check if decoding is possible with the given parameters */
if (avctx->coded_width < caps->minCodedExtent.width ||
avctx->coded_height < caps->minCodedExtent.height ||
avctx->coded_width > caps->maxCodedExtent.width ||
avctx->coded_height > caps->maxCodedExtent.height)
return AVERROR(EINVAL);
if (!(avctx->hwaccel_flags & AV_HWACCEL_FLAG_IGNORE_LEVEL) &&
avctx->level > max_level)
return AVERROR(EINVAL);
/* Some basic sanity checking */
if (!(dec_caps->flags & (VK_VIDEO_DECODE_CAPABILITY_DPB_AND_OUTPUT_COINCIDE_BIT_KHR |
VK_VIDEO_DECODE_CAPABILITY_DPB_AND_OUTPUT_DISTINCT_BIT_KHR))) {
av_log(avctx, AV_LOG_ERROR, "Buggy driver signals invalid decoding mode: neither "
"VK_VIDEO_DECODE_CAPABILITY_DPB_AND_OUTPUT_COINCIDE_BIT_KHR nor "
"VK_VIDEO_DECODE_CAPABILITY_DPB_AND_OUTPUT_DISTINCT_BIT_KHR are set!\n");
return AVERROR_EXTERNAL;
} else if ((dec_caps->flags & (VK_VIDEO_DECODE_CAPABILITY_DPB_AND_OUTPUT_COINCIDE_BIT_KHR |
VK_VIDEO_DECODE_CAPABILITY_DPB_AND_OUTPUT_DISTINCT_BIT_KHR) ==
VK_VIDEO_DECODE_CAPABILITY_DPB_AND_OUTPUT_COINCIDE_BIT_KHR) &&
!(caps->flags & VK_VIDEO_CAPABILITY_SEPARATE_REFERENCE_IMAGES_BIT_KHR)) {
av_log(avctx, AV_LOG_ERROR, "Cannot initialize Vulkan decoding session, buggy driver: "
"VK_VIDEO_DECODE_CAPABILITY_DPB_AND_OUTPUT_COINCIDE_BIT_KHR set "
"but VK_VIDEO_CAPABILITY_SEPARATE_REFERENCE_IMAGES_BIT_KHR is unset!\n");
return AVERROR_EXTERNAL;
}
/* TODO: make dedicated_dpb tunable */
dec->dedicated_dpb = !(dec_caps->flags & VK_VIDEO_DECODE_CAPABILITY_DPB_AND_OUTPUT_COINCIDE_BIT_KHR);
dec->layered_dpb = !(caps->flags & VK_VIDEO_CAPABILITY_SEPARATE_REFERENCE_IMAGES_BIT_KHR);
if (dec->dedicated_dpb) {
fmt_info.imageUsage = VK_IMAGE_USAGE_VIDEO_DECODE_DPB_BIT_KHR;
} else {
fmt_info.imageUsage = VK_IMAGE_USAGE_VIDEO_DECODE_DPB_BIT_KHR |
VK_IMAGE_USAGE_VIDEO_DECODE_DST_BIT_KHR |
VK_IMAGE_USAGE_TRANSFER_SRC_BIT |
VK_IMAGE_USAGE_SAMPLED_BIT;
}
/* Get the format of the images necessary */
ret = vk->GetPhysicalDeviceVideoFormatPropertiesKHR(hwctx->phys_dev,
&fmt_info,
&nb_out_fmts, NULL);
if (ret == VK_ERROR_FORMAT_NOT_SUPPORTED ||
(!nb_out_fmts && ret == VK_SUCCESS)) {
return AVERROR(EINVAL);
} else if (ret != VK_SUCCESS) {
av_log(avctx, AV_LOG_ERROR, "Unable to get Vulkan format properties: %s!\n",
ff_vk_ret2str(ret));
return AVERROR_EXTERNAL;
}
ret_info = av_mallocz(sizeof(*ret_info)*nb_out_fmts);
if (!ret_info)
return AVERROR(ENOMEM);
for (int i = 0; i < nb_out_fmts; i++)
ret_info[i].sType = VK_STRUCTURE_TYPE_VIDEO_FORMAT_PROPERTIES_KHR;
ret = vk->GetPhysicalDeviceVideoFormatPropertiesKHR(hwctx->phys_dev,
&fmt_info,
&nb_out_fmts, ret_info);
if (ret == VK_ERROR_FORMAT_NOT_SUPPORTED ||
(!nb_out_fmts && ret == VK_SUCCESS)) {
av_free(ret_info);
return AVERROR(EINVAL);
} else if (ret != VK_SUCCESS) {
av_log(avctx, AV_LOG_ERROR, "Unable to get Vulkan format properties: %s!\n",
ff_vk_ret2str(ret));
av_free(ret_info);
return AVERROR_EXTERNAL;
}
/* Find a format to use */
*pix_fmt = best_format = AV_PIX_FMT_NONE;
*vk_fmt = best_vkfmt = VK_FORMAT_UNDEFINED;
source_format = avctx->sw_pix_fmt;
av_log(avctx, AV_LOG_DEBUG, "Choosing best pixel format for decoding from %i:\n", nb_out_fmts);
for (int i = 0; i < nb_out_fmts; i++) {
enum AVPixelFormat tmp = ff_vk_pix_fmt_from_vkfmt(ret_info[i].format);
if (tmp == AV_PIX_FMT_NONE) {
av_log(avctx, AV_LOG_WARNING, "Invalid/unknown Vulkan format %i!\n", ret_info[i].format);
continue;
}
best_format = av_find_best_pix_fmt_of_2(tmp, best_format, source_format, 0, NULL);
if (tmp == best_format)
best_vkfmt = ret_info[i].format;
av_log(avctx, AV_LOG_DEBUG, " %s%s (Vulkan ID: %i)\n",
av_get_pix_fmt_name(tmp), tmp == best_format ? "*" : "",
ret_info[i].format);
}
av_free(ret_info);
if (best_format == AV_PIX_FMT_NONE) {
av_log(avctx, AV_LOG_ERROR, "No valid/compatible pixel format found for decoding!\n");
return AVERROR(EINVAL);
} else {
av_log(avctx, AV_LOG_VERBOSE, "Chosen frame pixfmt: %s (Vulkan ID: %i)\n",
av_get_pix_fmt_name(best_format), best_vkfmt);
}
*pix_fmt = best_format;
*vk_fmt = best_vkfmt;
*dpb_dedicate = dec->dedicated_dpb;
return 0;
}
static void free_profile_data(AVHWFramesContext *hwfc)
{
av_free(hwfc->user_opaque);
}
int ff_vk_frame_params(AVCodecContext *avctx, AVBufferRef *hw_frames_ctx)
{
VkFormat vkfmt;
int err, dedicated_dpb;
AVHWFramesContext *frames_ctx = (AVHWFramesContext*)hw_frames_ctx->data;
AVVulkanFramesContext *hwfc = frames_ctx->hwctx;
FFVulkanDecodeContext *dec = avctx->internal->hwaccel_priv_data;
FFVulkanDecodeProfileData *prof;
frames_ctx->sw_format = AV_PIX_FMT_NONE;
err = vulkan_decode_bootstrap(avctx, hw_frames_ctx);
if (err < 0)
return err;
prof = av_mallocz(sizeof(FFVulkanDecodeProfileData));
if (!prof)
return AVERROR(ENOMEM);
err = vulkan_decode_get_profile(avctx, hw_frames_ctx,
&frames_ctx->sw_format, &vkfmt,
prof, &dedicated_dpb);
if (err < 0) {
av_free(prof);
return err;
}
frames_ctx->user_opaque = prof;
frames_ctx->free = free_profile_data;
frames_ctx->width = avctx->coded_width;
frames_ctx->height = avctx->coded_height;
frames_ctx->format = AV_PIX_FMT_VULKAN;
hwfc->format[0] = vkfmt;
hwfc->create_pnext = &prof->profile_list;
hwfc->tiling = VK_IMAGE_TILING_OPTIMAL;
hwfc->usage = VK_IMAGE_USAGE_TRANSFER_SRC_BIT |
VK_IMAGE_USAGE_SAMPLED_BIT |
VK_IMAGE_USAGE_VIDEO_DECODE_DST_BIT_KHR;
if (!dec->dedicated_dpb)
hwfc->usage |= VK_IMAGE_USAGE_VIDEO_DECODE_DPB_BIT_KHR;
return err;
}
static void vk_decode_free_params(void *opaque, uint8_t *data)
{
FFVulkanDecodeShared *ctx = opaque;
FFVulkanFunctions *vk = &ctx->s.vkfn;
VkVideoSessionParametersKHR *par = (VkVideoSessionParametersKHR *)data;
vk->DestroyVideoSessionParametersKHR(ctx->s.hwctx->act_dev, *par,
ctx->s.hwctx->alloc);
av_free(par);
}
int ff_vk_decode_create_params(AVBufferRef **par_ref, void *logctx, FFVulkanDecodeShared *ctx,
const VkVideoSessionParametersCreateInfoKHR *session_params_create)
{
VkVideoSessionParametersKHR *par = av_malloc(sizeof(*par));
const FFVulkanFunctions *vk = &ctx->s.vkfn;
VkResult ret;
if (!par)
return AVERROR(ENOMEM);
/* Create session parameters */
ret = vk->CreateVideoSessionParametersKHR(ctx->s.hwctx->act_dev, session_params_create,
ctx->s.hwctx->alloc, par);
if (ret != VK_SUCCESS) {
av_log(logctx, AV_LOG_ERROR, "Unable to create Vulkan video session parameters: %s!\n",
ff_vk_ret2str(ret));
av_free(par);
return AVERROR_EXTERNAL;
}
*par_ref = av_buffer_create((uint8_t *)par, sizeof(*par),
vk_decode_free_params, ctx, 0);
if (!*par_ref) {
vk_decode_free_params(ctx, (uint8_t *)par);
return AVERROR(ENOMEM);
}
return 0;
}
int ff_vk_decode_uninit(AVCodecContext *avctx)
{
FFVulkanDecodeContext *dec = avctx->internal->hwaccel_priv_data;
FFVulkanDecodeShared *ctx = dec->shared_ctx;
/* Wait on and free execution pool */
ff_vk_exec_pool_free(&ctx->s, &dec->exec_pool);
av_freep(&dec->hevc_headers);
av_buffer_unref(&dec->session_params);
ff_refstruct_unref(&dec->shared_ctx);
av_freep(&dec->slice_off);
return 0;
}
int ff_vk_decode_init(AVCodecContext *avctx)
{
int err, qf, cxpos = 0, cypos = 0, nb_q = 0;
VkResult ret;
FFVulkanDecodeContext *dec = avctx->internal->hwaccel_priv_data;
FFVulkanDecodeShared *ctx;
FFVulkanContext *s;
FFVulkanFunctions *vk;
const VkVideoProfileInfoKHR *profile;
const FFVulkanDecodeDescriptor *vk_desc;
const VkPhysicalDeviceDriverProperties *driver_props;
VkVideoDecodeH264SessionParametersCreateInfoKHR h264_params = {
.sType = VK_STRUCTURE_TYPE_VIDEO_DECODE_H264_SESSION_PARAMETERS_CREATE_INFO_KHR,
};
VkVideoDecodeH265SessionParametersCreateInfoKHR h265_params = {
.sType = VK_STRUCTURE_TYPE_VIDEO_DECODE_H265_SESSION_PARAMETERS_CREATE_INFO_KHR,
};
StdVideoAV1SequenceHeader av1_empty_seq = { 0 };
VkVideoDecodeAV1SessionParametersCreateInfoKHR av1_params = {
.sType = VK_STRUCTURE_TYPE_VIDEO_DECODE_AV1_SESSION_PARAMETERS_CREATE_INFO_KHR,
.pStdSequenceHeader = &av1_empty_seq,
};
VkVideoSessionParametersCreateInfoKHR session_params_create = {
.sType = VK_STRUCTURE_TYPE_VIDEO_SESSION_PARAMETERS_CREATE_INFO_KHR,
.pNext = avctx->codec_id == AV_CODEC_ID_H264 ? (void *)&h264_params :
avctx->codec_id == AV_CODEC_ID_HEVC ? (void *)&h265_params :
avctx->codec_id == AV_CODEC_ID_AV1 ? (void *)&av1_params :
NULL,
};
VkVideoSessionCreateInfoKHR session_create = {
.sType = VK_STRUCTURE_TYPE_VIDEO_SESSION_CREATE_INFO_KHR,
};
VkSamplerYcbcrConversionCreateInfo yuv_sampler_info = {
.sType = VK_STRUCTURE_TYPE_SAMPLER_YCBCR_CONVERSION_CREATE_INFO,
.components = ff_comp_identity_map,
.ycbcrModel = VK_SAMPLER_YCBCR_MODEL_CONVERSION_RGB_IDENTITY,
.ycbcrRange = avctx->color_range == AVCOL_RANGE_MPEG, /* Ignored */
};
err = ff_decode_get_hw_frames_ctx(avctx, AV_HWDEVICE_TYPE_VULKAN);
if (err < 0)
return err;
/* Initialize contexts */
ctx = dec->shared_ctx;
s = &ctx->s;
vk = &ctx->s.vkfn;
s->frames_ref = av_buffer_ref(avctx->hw_frames_ctx);
s->frames = (AVHWFramesContext *)s->frames_ref->data;
s->hwfc = s->frames->hwctx;
s->device = (AVHWDeviceContext *)s->frames->device_ref->data;
s->hwctx = s->device->hwctx;
profile = get_video_profile(ctx, avctx->codec_id);
if (!profile) {
av_log(avctx, AV_LOG_ERROR, "Video profile missing from frames context!");
return AVERROR(EINVAL);
}
err = ff_vk_load_props(s);
if (err < 0)
goto fail;
/* Create queue context */
qf = ff_vk_qf_init(s, &ctx->qf, VK_QUEUE_VIDEO_DECODE_BIT_KHR);
vk_desc = get_codecdesc(avctx->codec_id);
/* Check for support */
if (!(s->video_props[qf].videoCodecOperations & vk_desc->decode_op)) {
av_log(avctx, AV_LOG_ERROR, "Decoding %s not supported on the given "
"queue family %i!\n", avcodec_get_name(avctx->codec_id), qf);
return AVERROR(EINVAL);
}
/* Enable queries if supported */
if (s->query_props[qf].queryResultStatusSupport)
nb_q = 1;
session_create.flags = 0x0;
session_create.queueFamilyIndex = s->hwctx->queue_family_decode_index;
session_create.maxCodedExtent = ctx->caps.maxCodedExtent;
session_create.maxDpbSlots = ctx->caps.maxDpbSlots;
session_create.maxActiveReferencePictures = ctx->caps.maxActiveReferencePictures;
session_create.pictureFormat = s->hwfc->format[0];
session_create.referencePictureFormat = session_create.pictureFormat;
session_create.pStdHeaderVersion = &vk_desc->ext_props;
session_create.pVideoProfile = profile;
/* Create decode exec context for this specific main thread.
* 2 async contexts per thread was experimentally determined to be optimal
* for a majority of streams. */
err = ff_vk_exec_pool_init(s, &ctx->qf, &dec->exec_pool, 2,
nb_q, VK_QUERY_TYPE_RESULT_STATUS_ONLY_KHR, 0,
profile);
if (err < 0)
goto fail;
err = ff_vk_video_common_init(avctx, s, &ctx->common, &session_create);
if (err < 0)
goto fail;
/* Get sampler */
av_chroma_location_enum_to_pos(&cxpos, &cypos, avctx->chroma_sample_location);
yuv_sampler_info.xChromaOffset = cxpos >> 7;
yuv_sampler_info.yChromaOffset = cypos >> 7;
yuv_sampler_info.format = s->hwfc->format[0];
ret = vk->CreateSamplerYcbcrConversion(s->hwctx->act_dev, &yuv_sampler_info,
s->hwctx->alloc, &ctx->yuv_sampler);
if (ret != VK_SUCCESS) {
err = AVERROR_EXTERNAL;
goto fail;
}
/* If doing an out-of-place decoding, create a DPB pool */
if (dec->dedicated_dpb || avctx->codec_id == AV_CODEC_ID_AV1) {
AVHWFramesContext *dpb_frames;
AVVulkanFramesContext *dpb_hwfc;
ctx->dpb_hwfc_ref = av_hwframe_ctx_alloc(s->frames->device_ref);
if (!ctx->dpb_hwfc_ref) {
err = AVERROR(ENOMEM);
goto fail;
}
dpb_frames = (AVHWFramesContext *)ctx->dpb_hwfc_ref->data;
dpb_frames->format = s->frames->format;
dpb_frames->sw_format = s->frames->sw_format;
dpb_frames->width = avctx->coded_width;
dpb_frames->height = avctx->coded_height;
dpb_hwfc = dpb_frames->hwctx;
dpb_hwfc->create_pnext = (void *)ff_vk_find_struct(ctx->s.hwfc->create_pnext,
VK_STRUCTURE_TYPE_VIDEO_PROFILE_LIST_INFO_KHR);
dpb_hwfc->format[0] = s->hwfc->format[0];
dpb_hwfc->tiling = VK_IMAGE_TILING_OPTIMAL;
dpb_hwfc->usage = VK_IMAGE_USAGE_VIDEO_DECODE_DPB_BIT_KHR |
VK_IMAGE_USAGE_SAMPLED_BIT; /* Shuts validator up. */
if (dec->layered_dpb)
dpb_hwfc->nb_layers = ctx->caps.maxDpbSlots;
err = av_hwframe_ctx_init(ctx->dpb_hwfc_ref);
if (err < 0)
goto fail;
if (dec->layered_dpb) {
ctx->layered_frame = vk_get_dpb_pool(ctx);
if (!ctx->layered_frame) {
err = AVERROR(ENOMEM);
goto fail;
}
err = vk_decode_create_view(dec, &ctx->layered_view, &ctx->layered_aspect,
(AVVkFrame *)ctx->layered_frame->data[0],
s->hwfc->format[0], 0);
if (err < 0)
goto fail;
}
}
session_params_create.videoSession = ctx->common.session;
ret = vk->CreateVideoSessionParametersKHR(s->hwctx->act_dev, &session_params_create,
s->hwctx->alloc, &ctx->empty_session_params);
if (ret != VK_SUCCESS) {
av_log(avctx, AV_LOG_ERROR, "Unable to create empty Vulkan video session parameters: %s!\n",
ff_vk_ret2str(ret));
return AVERROR_EXTERNAL;
}
driver_props = &dec->shared_ctx->s.driver_props;
if (driver_props->driverID == VK_DRIVER_ID_NVIDIA_PROPRIETARY &&
driver_props->conformanceVersion.major == 1 &&
driver_props->conformanceVersion.minor == 3 &&
driver_props->conformanceVersion.subminor == 8 &&
driver_props->conformanceVersion.patch < 3)
dec->quirk_av1_offset = 1;
ff_vk_decode_flush(avctx);
av_log(avctx, AV_LOG_VERBOSE, "Vulkan decoder initialization sucessful\n");
return 0;
fail:
ff_vk_decode_uninit(avctx);
return err;
}
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