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libavcodec: add Vulkan common video code

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Lynne 2022-12-18 08:31:03 +01:00
parent 6733a1a456
commit 023ae6103f
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GPG Key ID: A2FEA5F03F034464
7 changed files with 506 additions and 1 deletions
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2
configure vendored
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@ -327,7 +327,6 @@ External library support:
--disable-securetransport disable Secure Transport, needed for TLS support
on OSX if openssl and gnutls are not used [autodetect]
--enable-vapoursynth enable VapourSynth demuxer [no]
--disable-vulkan disable Vulkan code [autodetect]
--disable-xlib disable xlib [autodetect]
--disable-zlib disable zlib [autodetect]
@ -354,6 +353,7 @@ External library support:
--disable-vaapi disable Video Acceleration API (mainly Unix/Intel) code [autodetect]
--disable-vdpau disable Nvidia Video Decode and Presentation API for Unix code [autodetect]
--disable-videotoolbox disable VideoToolbox code [autodetect]
--disable-vulkan disable Vulkan code [autodetect]
Toolchain options:
--arch=ARCH select architecture [$arch]

2
libavcodec/Makefile
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@ -982,6 +982,7 @@ OBJS-$(CONFIG_NVDEC) += nvdec.o
OBJS-$(CONFIG_VAAPI) += vaapi_decode.o
OBJS-$(CONFIG_VIDEOTOOLBOX) += videotoolbox.o
OBJS-$(CONFIG_VDPAU) += vdpau.o
OBJS-$(CONFIG_VULKAN) += vulkan.o vulkan_video.o
OBJS-$(CONFIG_AV1_D3D11VA_HWACCEL) += dxva2_av1.o
OBJS-$(CONFIG_AV1_DXVA2_HWACCEL) += dxva2_av1.o
@ -1290,6 +1291,7 @@ SKIPHEADERS-$(CONFIG_XVMC) += xvmc.h
SKIPHEADERS-$(CONFIG_VAAPI) += vaapi_decode.h vaapi_hevc.h vaapi_encode.h
SKIPHEADERS-$(CONFIG_VDPAU) += vdpau.h vdpau_internal.h
SKIPHEADERS-$(CONFIG_VIDEOTOOLBOX) += videotoolbox.h vt_internal.h
SKIPHEADERS-$(CONFIG_VULKAN) += vulkan.h vulkan_video.h
SKIPHEADERS-$(CONFIG_V4L2_M2M) += v4l2_buffers.h v4l2_context.h v4l2_m2m.h
SKIPHEADERS-$(CONFIG_ZLIB) += zlib_wrapper.h

2
libavcodec/hwconfig.h
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@ -78,6 +78,8 @@ void ff_hwaccel_uninit(AVCodecContext *avctx);
HW_CONFIG_HWACCEL(1, 1, 1, VDPAU, VDPAU, ff_ ## codec ## _vdpau_hwaccel)
#define HWACCEL_VIDEOTOOLBOX(codec) \
HW_CONFIG_HWACCEL(1, 1, 1, VIDEOTOOLBOX, VIDEOTOOLBOX, ff_ ## codec ## _videotoolbox_hwaccel)
#define HWACCEL_VULKAN(codec) \
HW_CONFIG_HWACCEL(1, 1, 1, VULKAN, VULKAN, ff_ ## codec ## _vulkan_hwaccel)
#define HWACCEL_D3D11VA(codec) \
HW_CONFIG_HWACCEL(0, 0, 1, D3D11VA_VLD, NONE, ff_ ## codec ## _d3d11va_hwaccel)

19
libavcodec/vulkan.c Normal file
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@ -0,0 +1,19 @@
/*
* 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 "libavutil/vulkan.c"

24
libavcodec/vulkan.h Normal file
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@ -0,0 +1,24 @@
/*
* 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
*/
#ifndef AVCODEC_VULKAN_H
#define AVCODEC_VULKAN_H
#include "libavutil/vulkan.h"
#endif /* AVCODEC_VULKAN_H */

361
libavcodec/vulkan_video.c Normal file
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@ -0,0 +1,361 @@
/*
* 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 "codec_id.h"
#include "vulkan_video.h"
const FFVkCodecMap ff_vk_codec_map[AV_CODEC_ID_FIRST_AUDIO] = {
[AV_CODEC_ID_H264] = {
0,
0,
FF_VK_EXT_VIDEO_DECODE_H264,
VK_VIDEO_CODEC_OPERATION_DECODE_H264_BIT_KHR,
},
[AV_CODEC_ID_HEVC] = {
0,
0,
FF_VK_EXT_VIDEO_DECODE_H265,
VK_VIDEO_CODEC_OPERATION_DECODE_H265_BIT_KHR
},
};
#define ASPECT_2PLANE (VK_IMAGE_ASPECT_PLANE_0_BIT | VK_IMAGE_ASPECT_PLANE_1_BIT)
#define ASPECT_3PLANE (VK_IMAGE_ASPECT_PLANE_0_BIT | VK_IMAGE_ASPECT_PLANE_1_BIT | VK_IMAGE_ASPECT_PLANE_2_BIT)
static const struct FFVkFormatMapEntry {
VkFormat vkf;
enum AVPixelFormat pixfmt;
VkImageAspectFlags aspect;
} vk_format_map[] = {
/* Gray formats */
{ VK_FORMAT_R8_UNORM, AV_PIX_FMT_GRAY8, VK_IMAGE_ASPECT_COLOR_BIT },
{ VK_FORMAT_R16_UNORM, AV_PIX_FMT_GRAY16, VK_IMAGE_ASPECT_COLOR_BIT },
{ VK_FORMAT_R32_SFLOAT, AV_PIX_FMT_GRAYF32, VK_IMAGE_ASPECT_COLOR_BIT },
/* RGB formats */
{ VK_FORMAT_R16G16B16A16_UNORM, AV_PIX_FMT_XV36, VK_IMAGE_ASPECT_COLOR_BIT },
{ VK_FORMAT_B8G8R8A8_UNORM, AV_PIX_FMT_BGRA, VK_IMAGE_ASPECT_COLOR_BIT },
{ VK_FORMAT_R8G8B8A8_UNORM, AV_PIX_FMT_RGBA, VK_IMAGE_ASPECT_COLOR_BIT },
{ VK_FORMAT_R8G8B8_UNORM, AV_PIX_FMT_RGB24, VK_IMAGE_ASPECT_COLOR_BIT },
{ VK_FORMAT_B8G8R8_UNORM, AV_PIX_FMT_BGR24, VK_IMAGE_ASPECT_COLOR_BIT },
{ VK_FORMAT_R16G16B16_UNORM, AV_PIX_FMT_RGB48, VK_IMAGE_ASPECT_COLOR_BIT },
{ VK_FORMAT_R16G16B16A16_UNORM, AV_PIX_FMT_RGBA64, VK_IMAGE_ASPECT_COLOR_BIT },
{ VK_FORMAT_R5G6B5_UNORM_PACK16, AV_PIX_FMT_RGB565, VK_IMAGE_ASPECT_COLOR_BIT },
{ VK_FORMAT_B5G6R5_UNORM_PACK16, AV_PIX_FMT_BGR565, VK_IMAGE_ASPECT_COLOR_BIT },
{ VK_FORMAT_B8G8R8A8_UNORM, AV_PIX_FMT_BGR0, VK_IMAGE_ASPECT_COLOR_BIT },
{ VK_FORMAT_R8G8B8A8_UNORM, AV_PIX_FMT_RGB0, VK_IMAGE_ASPECT_COLOR_BIT },
{ VK_FORMAT_A2R10G10B10_UNORM_PACK32, AV_PIX_FMT_X2RGB10, VK_IMAGE_ASPECT_COLOR_BIT },
/* Planar RGB */
{ VK_FORMAT_R8_UNORM, AV_PIX_FMT_GBRAP, VK_IMAGE_ASPECT_COLOR_BIT },
{ VK_FORMAT_R16_UNORM, AV_PIX_FMT_GBRAP16, VK_IMAGE_ASPECT_COLOR_BIT },
{ VK_FORMAT_R32_SFLOAT, AV_PIX_FMT_GBRPF32, VK_IMAGE_ASPECT_COLOR_BIT },
{ VK_FORMAT_R32_SFLOAT, AV_PIX_FMT_GBRAPF32, VK_IMAGE_ASPECT_COLOR_BIT },
/* Two-plane 420 YUV at 8, 10, 12 and 16 bits */
{ VK_FORMAT_G8_B8R8_2PLANE_420_UNORM, AV_PIX_FMT_NV12, ASPECT_2PLANE },
{ VK_FORMAT_G10X6_B10X6R10X6_2PLANE_420_UNORM_3PACK16, AV_PIX_FMT_P010, ASPECT_2PLANE },
{ VK_FORMAT_G12X4_B12X4R12X4_2PLANE_420_UNORM_3PACK16, AV_PIX_FMT_P012, ASPECT_2PLANE },
{ VK_FORMAT_G16_B16R16_2PLANE_420_UNORM, AV_PIX_FMT_P016, ASPECT_2PLANE },
/* Two-plane 422 YUV at 8, 10 and 16 bits */
{ VK_FORMAT_G8_B8R8_2PLANE_422_UNORM, AV_PIX_FMT_NV16, ASPECT_2PLANE },
{ VK_FORMAT_G10X6_B10X6R10X6_2PLANE_422_UNORM_3PACK16, AV_PIX_FMT_P210, ASPECT_2PLANE },
{ VK_FORMAT_G12X4_B12X4R12X4_2PLANE_422_UNORM_3PACK16, AV_PIX_FMT_P212, ASPECT_2PLANE },
{ VK_FORMAT_G16_B16R16_2PLANE_422_UNORM, AV_PIX_FMT_P216, ASPECT_2PLANE },
/* Two-plane 444 YUV at 8, 10 and 16 bits */
{ VK_FORMAT_G8_B8R8_2PLANE_444_UNORM, AV_PIX_FMT_NV24, ASPECT_2PLANE },
{ VK_FORMAT_G10X6_B10X6R10X6_2PLANE_444_UNORM_3PACK16, AV_PIX_FMT_P410, ASPECT_2PLANE },
{ VK_FORMAT_G12X4_B12X4R12X4_2PLANE_444_UNORM_3PACK16, AV_PIX_FMT_P412, ASPECT_2PLANE },
{ VK_FORMAT_G16_B16R16_2PLANE_444_UNORM, AV_PIX_FMT_P416, ASPECT_2PLANE },
/* Three-plane 420, 422, 444 at 8, 10, 12 and 16 bits */
{ VK_FORMAT_G8_B8_R8_3PLANE_420_UNORM, AV_PIX_FMT_YUV420P, ASPECT_3PLANE },
{ VK_FORMAT_G16_B16_R16_3PLANE_420_UNORM, AV_PIX_FMT_YUV420P10, ASPECT_3PLANE },
{ VK_FORMAT_G16_B16_R16_3PLANE_420_UNORM, AV_PIX_FMT_YUV420P12, ASPECT_3PLANE },
{ VK_FORMAT_G16_B16_R16_3PLANE_420_UNORM, AV_PIX_FMT_YUV420P16, ASPECT_3PLANE },
{ VK_FORMAT_G8_B8_R8_3PLANE_422_UNORM, AV_PIX_FMT_YUV422P, ASPECT_3PLANE },
{ VK_FORMAT_G16_B16_R16_3PLANE_422_UNORM, AV_PIX_FMT_YUV422P10, ASPECT_3PLANE },
{ VK_FORMAT_G16_B16_R16_3PLANE_422_UNORM, AV_PIX_FMT_YUV422P12, ASPECT_3PLANE },
{ VK_FORMAT_G16_B16_R16_3PLANE_422_UNORM, AV_PIX_FMT_YUV422P16, ASPECT_3PLANE },
{ VK_FORMAT_G8_B8_R8_3PLANE_444_UNORM, AV_PIX_FMT_YUV444P, ASPECT_3PLANE },
{ VK_FORMAT_G16_B16_R16_3PLANE_444_UNORM, AV_PIX_FMT_YUV444P10, ASPECT_3PLANE },
{ VK_FORMAT_G16_B16_R16_3PLANE_444_UNORM, AV_PIX_FMT_YUV444P12, ASPECT_3PLANE },
{ VK_FORMAT_G16_B16_R16_3PLANE_444_UNORM, AV_PIX_FMT_YUV444P16, ASPECT_3PLANE },
/* Single plane 422 at 8, 10 and 12 bits */
{ VK_FORMAT_G8B8G8R8_422_UNORM, AV_PIX_FMT_YUYV422, VK_IMAGE_ASPECT_COLOR_BIT },
{ VK_FORMAT_B8G8R8G8_422_UNORM, AV_PIX_FMT_UYVY422, VK_IMAGE_ASPECT_COLOR_BIT },
{ VK_FORMAT_G10X6B10X6G10X6R10X6_422_UNORM_4PACK16, AV_PIX_FMT_Y210, VK_IMAGE_ASPECT_COLOR_BIT },
{ VK_FORMAT_G12X4B12X4G12X4R12X4_422_UNORM_4PACK16, AV_PIX_FMT_Y212, VK_IMAGE_ASPECT_COLOR_BIT },
};
static const int nb_vk_format_map = FF_ARRAY_ELEMS(vk_format_map);
enum AVPixelFormat ff_vk_pix_fmt_from_vkfmt(VkFormat vkf)
{
for (int i = 0; i < nb_vk_format_map; i++)
if (vk_format_map[i].vkf == vkf)
return vk_format_map[i].pixfmt;
return AV_PIX_FMT_NONE;
}
VkImageAspectFlags ff_vk_aspect_bits_from_vkfmt(VkFormat vkf)
{
for (int i = 0; i < nb_vk_format_map; i++)
if (vk_format_map[i].vkf == vkf)
return vk_format_map[i].aspect;
return VK_IMAGE_ASPECT_NONE;
}
VkVideoChromaSubsamplingFlagBitsKHR ff_vk_subsampling_from_av_desc(const AVPixFmtDescriptor *desc)
{
if (desc->nb_components == 1)
return VK_VIDEO_CHROMA_SUBSAMPLING_MONOCHROME_BIT_KHR;
else if (!desc->log2_chroma_w && !desc->log2_chroma_h)
return VK_VIDEO_CHROMA_SUBSAMPLING_444_BIT_KHR;
else if (!desc->log2_chroma_w && desc->log2_chroma_h == 1)
return VK_VIDEO_CHROMA_SUBSAMPLING_422_BIT_KHR;
else if (desc->log2_chroma_w == 1 && desc->log2_chroma_h == 1)
return VK_VIDEO_CHROMA_SUBSAMPLING_420_BIT_KHR;
return VK_VIDEO_CHROMA_SUBSAMPLING_INVALID_KHR;
}
VkVideoComponentBitDepthFlagBitsKHR ff_vk_depth_from_av_depth(int depth)
{
switch (depth) {
case 8: return VK_VIDEO_COMPONENT_BIT_DEPTH_8_BIT_KHR;
case 10: return VK_VIDEO_COMPONENT_BIT_DEPTH_10_BIT_KHR;
case 12: return VK_VIDEO_COMPONENT_BIT_DEPTH_12_BIT_KHR;
default: break;
}
return VK_VIDEO_COMPONENT_BIT_DEPTH_INVALID_KHR;
}
static void free_data_buf(void *opaque, uint8_t *data)
{
FFVulkanContext *ctx = opaque;
FFVkVideoBuffer *buf = (FFVkVideoBuffer *)data;
ff_vk_unmap_buffer(ctx, &buf->buf, 0);
ff_vk_free_buf(ctx, &buf->buf);
av_free(data);
}
static AVBufferRef *alloc_data_buf(void *opaque, size_t size)
{
AVBufferRef *ref;
uint8_t *buf = av_mallocz(size);
if (!buf)
return NULL;
ref = av_buffer_create(buf, size, free_data_buf, opaque, 0);
if (!ref)
av_free(buf);
return ref;
}
int ff_vk_video_get_buffer(FFVulkanContext *ctx, FFVkVideoCommon *s,
AVBufferRef **buf, VkBufferUsageFlags usage,
void *create_pNext, size_t size)
{
int err;
AVBufferRef *ref;
FFVkVideoBuffer *data;
if (!s->buf_pool) {
s->buf_pool = av_buffer_pool_init2(sizeof(FFVkVideoBuffer), ctx,
alloc_data_buf, NULL);
if (!s->buf_pool)
return AVERROR(ENOMEM);
}
*buf = ref = av_buffer_pool_get(s->buf_pool);
if (!ref)
return AVERROR(ENOMEM);
data = (FFVkVideoBuffer *)ref->data;
if (data->buf.size >= size)
return 0;
/* No point in requesting anything smaller. */
size = FFMAX(size, 1024*1024);
/* Align buffer to nearest power of two. Makes fragmentation management
* easier, and gives us ample headroom. */
size--;
size |= size >> 1;
size |= size >> 2;
size |= size >> 4;
size |= size >> 8;
size |= size >> 16;
size++;
ff_vk_free_buf(ctx, &data->buf);
memset(data, 0, sizeof(FFVkVideoBuffer));
err = ff_vk_create_buf(ctx, &data->buf, size,
create_pNext, NULL, usage,
VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT);
if (err < 0) {
av_buffer_unref(&ref);
return err;
}
/* Map the buffer */
err = ff_vk_map_buffer(ctx, &data->buf, &data->mem, 0);
if (err < 0) {
av_buffer_unref(&ref);
return err;
}
return 0;
}
av_cold void ff_vk_video_common_uninit(FFVulkanContext *s,
FFVkVideoCommon *common)
{
FFVulkanFunctions *vk = &s->vkfn;
if (common->session) {
vk->DestroyVideoSessionKHR(s->hwctx->act_dev, common->session,
s->hwctx->alloc);
common->session = NULL;
}
if (common->nb_mem && common->mem)
for (int i = 0; i < common->nb_mem; i++)
vk->FreeMemory(s->hwctx->act_dev, common->mem[i], s->hwctx->alloc);
av_freep(&common->mem);
av_buffer_pool_uninit(&common->buf_pool);
}
av_cold int ff_vk_video_common_init(void *log, FFVulkanContext *s,
FFVkVideoCommon *common,
VkVideoSessionCreateInfoKHR *session_create)
{
int err;
VkResult ret;
FFVulkanFunctions *vk = &s->vkfn;
VkMemoryRequirements2 *mem_req = NULL;
VkVideoSessionMemoryRequirementsKHR *mem = NULL;
VkBindVideoSessionMemoryInfoKHR *bind_mem = NULL;
/* Create session */
ret = vk->CreateVideoSessionKHR(s->hwctx->act_dev, session_create,
s->hwctx->alloc, &common->session);
if (ret != VK_SUCCESS)
return AVERROR_EXTERNAL;
/* Get memory requirements */
ret = vk->GetVideoSessionMemoryRequirementsKHR(s->hwctx->act_dev,
common->session,
&common->nb_mem,
NULL);
if (ret != VK_SUCCESS) {
err = AVERROR_EXTERNAL;
goto fail;
}
/* Allocate all memory needed to actually allocate memory */
common->mem = av_mallocz(sizeof(*common->mem)*common->nb_mem);
if (!common->mem) {
err = AVERROR(ENOMEM);
goto fail;
}
mem = av_mallocz(sizeof(*mem)*common->nb_mem);
if (!mem) {
err = AVERROR(ENOMEM);
goto fail;
}
mem_req = av_mallocz(sizeof(*mem_req)*common->nb_mem);
if (!mem_req) {
err = AVERROR(ENOMEM);
goto fail;
}
bind_mem = av_mallocz(sizeof(*bind_mem)*common->nb_mem);
if (!bind_mem) {
err = AVERROR(ENOMEM);
goto fail;
}
/* Set the needed fields to get the memory requirements */
for (int i = 0; i < common->nb_mem; i++) {
mem_req[i] = (VkMemoryRequirements2) {
.sType = VK_STRUCTURE_TYPE_MEMORY_REQUIREMENTS_2,
};
mem[i] = (VkVideoSessionMemoryRequirementsKHR) {
.sType = VK_STRUCTURE_TYPE_VIDEO_SESSION_MEMORY_REQUIREMENTS_KHR,
.memoryRequirements = mem_req[i].memoryRequirements,
};
}
/* Finally get the memory requirements */
ret = vk->GetVideoSessionMemoryRequirementsKHR(s->hwctx->act_dev,
common->session, &common->nb_mem,
mem);
if (ret != VK_SUCCESS) {
err = AVERROR_EXTERNAL;
goto fail;
}
/* Now allocate each requested memory.
* For ricing, could pool together memory that ends up in the same index. */
for (int i = 0; i < common->nb_mem; i++) {
err = ff_vk_alloc_mem(s, &mem[i].memoryRequirements,
UINT32_MAX, NULL, NULL, &common->mem[i]);
if (err < 0)
goto fail;
bind_mem[i] = (VkBindVideoSessionMemoryInfoKHR) {
.sType = VK_STRUCTURE_TYPE_BIND_VIDEO_SESSION_MEMORY_INFO_KHR,
.memory = common->mem[i],
.memoryBindIndex = mem[i].memoryBindIndex,
.memoryOffset = 0,
.memorySize = mem[i].memoryRequirements.size,
};
av_log(log, AV_LOG_VERBOSE, "Allocating %lu bytes in bind index %i for video session\n",
bind_mem[i].memorySize, bind_mem[i].memoryBindIndex);
}
/* Bind the allocated memory */
ret = vk->BindVideoSessionMemoryKHR(s->hwctx->act_dev, common->session,
common->nb_mem, bind_mem);
if (ret != VK_SUCCESS) {
err = AVERROR_EXTERNAL;
goto fail;
}
av_freep(&mem);
av_freep(&mem_req);
av_freep(&bind_mem);
return 0;
fail:
av_freep(&mem);
av_freep(&mem_req);
av_freep(&bind_mem);
ff_vk_video_common_uninit(s, common);
return err;
}

97
libavcodec/vulkan_video.h Normal file
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@ -0,0 +1,97 @@
/*
* 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
*/
#ifndef AVCODEC_VULKAN_VIDEO_H
#define AVCODEC_VULKAN_VIDEO_H
#include "codec_id.h"
#include "vulkan.h"
#include <vk_video/vulkan_video_codecs_common.h>
#define CODEC_VER_MAJ(ver) (ver >> 22)
#define CODEC_VER_MIN(ver) ((ver >> 12) & ((1 << 10) - 1))
#define CODEC_VER_PAT(ver) (ver & ((1 << 12) - 1))
#define CODEC_VER(ver) CODEC_VER_MAJ(ver), CODEC_VER_MIN(ver), CODEC_VER_PAT(ver)
typedef struct FFVkCodecMap {
FFVulkanExtensions encode_extension;
VkVideoCodecOperationFlagBitsKHR encode_op;
FFVulkanExtensions decode_extension;
VkVideoCodecOperationFlagBitsKHR decode_op;
} FFVkCodecMap;
typedef struct FFVkVideoSession {
VkVideoSessionKHR session;
VkDeviceMemory *mem;
uint32_t nb_mem;
AVBufferPool *buf_pool;
} FFVkVideoCommon;
/**
* Index is codec_id.
*/
extern const FFVkCodecMap ff_vk_codec_map[AV_CODEC_ID_FIRST_AUDIO];
/**
* Get pixfmt from a Vulkan format.
*/
enum AVPixelFormat ff_vk_pix_fmt_from_vkfmt(VkFormat vkf);
/**
* Get aspect bits which include all planes from a VkFormat.
*/
VkImageAspectFlags ff_vk_aspect_bits_from_vkfmt(VkFormat vkf);
/**
* Get Vulkan's chroma subsampling from a pixfmt descriptor.
*/
VkVideoChromaSubsamplingFlagBitsKHR ff_vk_subsampling_from_av_desc(const AVPixFmtDescriptor *desc);
/**
* Get Vulkan's bit depth from an [8:12] integer.
*/
VkVideoComponentBitDepthFlagBitsKHR ff_vk_depth_from_av_depth(int depth);
typedef struct FFVkVideoBuffer {
FFVkBuffer buf;
uint8_t *mem;
} FFVkVideoBuffer;
/**
* Get a mapped FFVkPooledBuffer with a specific guaranteed minimum size
* from a pool.
*/
int ff_vk_video_get_buffer(FFVulkanContext *ctx, FFVkVideoCommon *s,
AVBufferRef **buf, VkBufferUsageFlags usage,
void *create_pNext, size_t size);
/**
* Initialize video session, allocating and binding necessary memory.
*/
int ff_vk_video_common_init(void *log, FFVulkanContext *s,
FFVkVideoCommon *common,
VkVideoSessionCreateInfoKHR *session_create);
/**
* Free video session and required resources.
*/
void ff_vk_video_common_uninit(FFVulkanContext *s, FFVkVideoCommon *common);
#endif /* AVCODEC_VULKAN_VIDEO_H */