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FFmpeg/libavcodec/vulkan_decode.c

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libavcodec: add Vulkan common video decoding code
2 years ago
/*
* 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 "vulkan_video.h"
#include "vulkan_decode.h"
#include "config_components.h"
#if CONFIG_H264_VULKAN_HWACCEL
extern const VkExtensionProperties ff_vk_dec_h264_ext;
#endif
#if CONFIG_HEVC_VULKAN_HWACCEL
extern const VkExtensionProperties ff_vk_dec_hevc_ext;
#endif
static const VkExtensionProperties *dec_ext[] = {
#if CONFIG_H264_VULKAN_HWACCEL
[AV_CODEC_ID_H264] = &ff_vk_dec_h264_ext,
#endif
#if CONFIG_HEVC_VULKAN_HWACCEL
[AV_CODEC_ID_HEVC] = &ff_vk_dec_hevc_ext,
#endif
};
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;
err = av_buffer_replace(&dst_ctx->shared_ref, src_ctx->shared_ref);
if (err < 0)
return err;
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;
return 0;
}
int ff_vk_params_changed(AVCodecContext *avctx, int t, const uint8_t *b, uint32_t s)
{
FFVulkanDecodeContext *dec = avctx->internal->hwaccel_priv_data;
dec->params_changed = 1;
return 0;
}
static int vk_decode_create_view(FFVulkanDecodeShared *ctx, VkImageView *dst_view,
VkImageAspectFlags *aspect, AVVkFrame *src,
VkFormat vkf)
{
VkResult ret;
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 = 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 = VK_REMAINING_ARRAY_LAYERS,
.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 = (FFVulkanDecodeShared *)dec->shared_ref->data;
vkpic->nb_slices = 0;
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 = NULL;
vkpic->img_view_out = NULL;
vkpic->img_view_dest = NULL;
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(ctx, &vkpic->img_view_ref,
&vkpic->img_aspect_ref,
(AVVkFrame *)vkpic->dpb_frame->data[0],
dpb_hwfc->format[0]);
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(ctx, &vkpic->img_view_out,
&vkpic->img_aspect,
(AVVkFrame *)pic->data[0],
hwfc->format[0]);
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 = (FFVulkanDecodeShared *)dec->shared_ref->data;
FFVulkanDecodeProfileData *prof = &ctx->profile_data;
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 +
prof->caps.minBitstreamBufferSizeAlignment;
new_size = FFALIGN(new_size, prof->caps.minBitstreamBufferSizeAlignment);
slice_off = av_fast_realloc(vp->slice_off, &vp->slice_off_max,
(nb + 1)*sizeof(slice_off));
if (!slice_off)
return AVERROR(ENOMEM);
*offsets = vp->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->nb_slices++;
vp->slices_size += startcode_len + size;
return 0;
}
void ff_vk_decode_flush(AVCodecContext *avctx)
{
FFVulkanDecodeContext *dec = avctx->internal->hwaccel_priv_data;
FFVulkanDecodeShared *ctx = (FFVulkanDecodeShared *)dec->shared_ref->data;
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(&ctx->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 = (FFVulkanDecodeShared *)dec->shared_ref->data;
FFVulkanDecodeProfileData *prof = &ctx->profile_data;
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,
prof->caps.minBitstreamBufferSizeAlignment);
FFVkExecContext *exec = ff_vk_exec_get(&ctx->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 (ctx->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: %li\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 = 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 (ctx->exec_pool.nb_queries)
vk->CmdBeginQuery(cmd_buf, ctx->exec_pool.query_pool, exec->query_idx + 0, 0);
vk->CmdDecodeVideoKHR(cmd_buf, &vp->decode_info);
/* End status query */
if (ctx->exec_pool.nb_queries)
vk->CmdEndQuery(cmd_buf, ctx->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;
PFN_vkGetDeviceProcAddr device_proc_addr;
PFN_vkWaitSemaphores wait_semaphores;
PFN_vkDestroyImageView destroy_image_view;
VkSemaphoreWaitInfo sem_wait = (VkSemaphoreWaitInfo) {
.sType = VK_STRUCTURE_TYPE_SEMAPHORE_WAIT_INFO,
.pSemaphores = &vp->sem,
.pValues = &vp->sem_value,
.semaphoreCount = 1,
};
/* Guaranteed to exist */
device_proc_addr = (PFN_vkGetDeviceProcAddr)hwctx->get_proc_addr(hwctx->inst, "vkGetDeviceProcAddr");
destroy_image_view = (PFN_vkDestroyImageView)device_proc_addr(hwctx->act_dev, "vkDestroyImageView");
wait_semaphores = (PFN_vkWaitSemaphores)device_proc_addr(hwctx->act_dev, "vkWaitSemaphores");
/* 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)
wait_semaphores(hwctx->act_dev, &sem_wait, UINT64_MAX);
/* Free slices data */
av_buffer_unref(&vp->slices_buf);
/* TODO: use a pool in the decode context instead to avoid per-frame allocs. */
av_freep(&vp->slice_off);
/* Destroy image view (out) */
if (vp->img_view_out && vp->img_view_out != vp->img_view_dest)
destroy_image_view(hwctx->act_dev, vp->img_view_out, hwctx->alloc);
/* Destroy image view (ref, unlayered) */
if (vp->img_view_dest)
destroy_image_view(hwctx->act_dev, vp->img_view_dest, hwctx->alloc);
av_frame_free(&vp->dpb_frame);
}
static void free_common(void *opaque, uint8_t *data)
{
FFVulkanDecodeShared *ctx = (FFVulkanDecodeShared *)data;
FFVulkanContext *s = &ctx->s;
FFVulkanFunctions *vk = &ctx->s.vkfn;
/* Wait on and free execution pool */
ff_vk_exec_pool_free(s, &ctx->exec_pool);
/* 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);
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_ref)
return 0;
ctx = av_mallocz(sizeof(*ctx));
if (!ctx)
return AVERROR(ENOMEM);
dec->shared_ref = av_buffer_create((uint8_t *)ctx, sizeof(*ctx),
free_common, NULL, 0);
if (!dec->shared_ref) {
av_free(ctx);
return AVERROR(ENOMEM);
}
ctx = (FFVulkanDecodeShared *)dec->shared_ref->data;
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);
av_buffer_unref(&dec->shared_ref);
return AVERROR(ENOSYS);
}
err = ff_vk_load_functions(device, &ctx->s.vkfn, ctx->s.extensions, 1, 1);
if (err < 0) {
av_buffer_unref(&dec->shared_ref);
return err;
}
return 0;
}
static VkResult vulkan_setup_profile(AVCodecContext *avctx,
FFVulkanDecodeProfileData *prof,
AVVulkanDeviceContext *hwctx,
FFVulkanFunctions *vk,
const struct FFVkCodecMap *vk_codec,
VkVideoDecodeH264CapabilitiesKHR *h264_caps,
VkVideoDecodeH265CapabilitiesKHR *h265_caps,
int cur_profile)
{
VkVideoCapabilitiesKHR *caps = &prof->caps;
VkVideoDecodeCapabilitiesKHR *dec_caps = &prof->dec_caps;
VkVideoDecodeUsageInfoKHR *usage = &prof->usage;
VkVideoProfileInfoKHR *profile = &prof->profile;
VkVideoProfileListInfoKHR *profile_list = &prof->profile_list;
VkVideoDecodeH264ProfileInfoKHR *h264_profile = &prof->h264_profile;
VkVideoDecodeH264ProfileInfoKHR *h265_profile = &prof->h265_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;
h264_profile->stdProfileIdc = cur_profile;
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;
}
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_codec->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,
int *width_align, int *height_align,
enum AVPixelFormat *pix_fmt, VkFormat *vk_fmt,
int *dpb_dedicate)
{
VkResult ret;
int max_level, base_profile, cur_profile;
const struct FFVkCodecMap *vk_codec = &ff_vk_codec_map[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 = (FFVulkanDecodeShared *)dec->shared_ref->data;
FFVulkanFunctions *vk = &ctx->s.vkfn;
FFVulkanDecodeProfileData *prof = &ctx->profile_data;
VkVideoCapabilitiesKHR *caps = &prof->caps;
VkVideoDecodeCapabilitiesKHR *dec_caps = &prof->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,
};
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_codec->decode_op || !vk_codec->decode_extension) {
av_log(avctx, AV_LOG_ERROR, "Unsupported codec for Vulkan decoding: %s!\n",
avcodec_get_name(avctx->codec_id));
return AVERROR(ENOSYS);
} else if (!(vk_codec->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 ? FF_PROFILE_H264_CONSTRAINED_BASELINE :
avctx->codec_id == AV_CODEC_ID_H265 ? FF_PROFILE_HEVC_MAIN :
0;
ret = vulkan_setup_profile(avctx, prof, hwctx, vk, vk_codec,
&h264_caps,
&h265_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_codec,
&h264_caps,
&h265_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 ? h264_caps.maxLevelIdc :
avctx->codec_id == AV_CODEC_ID_H265 ? h265_caps.maxLevelIdc :
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 version: %i.%i.%i (driver), %i.%i.%i (compiled)\n",
CODEC_VER(caps->stdHeaderVersion.specVersion),
CODEC_VER(dec_ext[avctx->codec_id]->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;
*width_align = caps->pictureAccessGranularity.width;
*height_align = caps->pictureAccessGranularity.height;
*dpb_dedicate = dec->dedicated_dpb;
return 0;
}
int ff_vk_frame_params(AVCodecContext *avctx, AVBufferRef *hw_frames_ctx)
{
VkFormat vkfmt;
int err, width_align, height_align, dedicated_dpb;
AVHWFramesContext *frames_ctx = (AVHWFramesContext*)hw_frames_ctx->data;
AVVulkanFramesContext *hwfc = frames_ctx->hwctx;
FFVulkanDecodeContext *dec = avctx->internal->hwaccel_priv_data;
FFVulkanDecodeShared *ctx;
FFVulkanDecodeProfileData *prof;
frames_ctx->sw_format = AV_PIX_FMT_NONE;
err = vulkan_decode_bootstrap(avctx, hw_frames_ctx);
if (err < 0)
return err;
ctx = (FFVulkanDecodeShared *)dec->shared_ref->data;
prof = &ctx->profile_data;
err = vulkan_decode_get_profile(avctx, hw_frames_ctx,
&width_align, &height_align,
&frames_ctx->sw_format, &vkfmt,
&dedicated_dpb);
if (err < 0)
return err;
frames_ctx->width = FFALIGN(avctx->coded_width, width_align);
frames_ctx->height = FFALIGN(avctx->coded_height, height_align);
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;
}
void ff_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_uninit(AVCodecContext *avctx)
{
FFVulkanDecodeContext *dec = avctx->internal->hwaccel_priv_data;
av_buffer_pool_uninit(&dec->tmp_pool);
av_buffer_unref(&dec->session_params);
av_buffer_unref(&dec->shared_ref);
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;
FFVulkanDecodeProfileData *prof;
FFVulkanContext *s;
FFVulkanFunctions *vk;
FFVkQueueFamilyCtx qf_dec;
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,
};
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 :
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 = (FFVulkanDecodeShared *)dec->shared_ref->data;
prof = &ctx->profile_data;
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;
err = ff_vk_load_props(s);
if (err < 0)
goto fail;
/* Create queue context */
qf = ff_vk_qf_init(s, &qf_dec, VK_QUEUE_VIDEO_DECODE_BIT_KHR);
/* Check for support */
if (!(s->video_props[qf].videoCodecOperations &
ff_vk_codec_map[avctx->codec_id].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 = prof->caps.maxCodedExtent;
session_create.maxDpbSlots = prof->caps.maxDpbSlots;
session_create.maxActiveReferencePictures = prof->caps.maxActiveReferencePictures;
session_create.pictureFormat = s->hwfc->format[0];
session_create.referencePictureFormat = session_create.pictureFormat;
session_create.pStdHeaderVersion = dec_ext[avctx->codec_id];
session_create.pVideoProfile = &prof->profile_list.pProfiles[0];
/* Create decode exec context.
* 4 async contexts per thread seems like a good number. */
err = ff_vk_exec_pool_init(s, &qf_dec, &ctx->exec_pool, 4*avctx->thread_count,
nb_q, VK_QUERY_TYPE_RESULT_STATUS_ONLY_KHR, 0,
session_create.pVideoProfile);
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) {
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 = s->frames->width;
dpb_frames->height = s->frames->height;
dpb_hwfc = dpb_frames->hwctx;
dpb_hwfc->create_pnext = (void *)&prof->profile_list;
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 = prof->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(ctx, &ctx->layered_view, &ctx->layered_aspect,
(AVVkFrame *)ctx->layered_frame->data[0],
s->hwfc->format[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;
}
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;
}