FFmpeg
Data Structures | Functions | Variables
vulkan_dpx.c File Reference
#include "vulkan_decode.h"
#include "hwaccel_internal.h"
#include "dpx.h"
#include "libavutil/vulkan_spirv.h"
#include "libavutil/mem.h"

Go to the source code of this file.

Data Structures

struct  DPXVulkanDecodePicture
 
struct  DPXVulkanDecodeContext
 
struct  DecodePushData
 

Functions

static int host_upload_image (AVCodecContext *avctx, FFVulkanDecodeContext *dec, DPXDecContext *dpx, const uint8_t *src, uint32_t size)
 
static int vk_dpx_start_frame (AVCodecContext *avctx, const AVBufferRef *buffer_ref, av_unused const uint8_t *buffer, av_unused uint32_t size)
 
static int vk_dpx_decode_slice (AVCodecContext *avctx, const uint8_t *data, uint32_t size)
 
static int vk_dpx_end_frame (AVCodecContext *avctx)
 
static int init_shader (AVCodecContext *avctx, FFVulkanContext *s, FFVkExecPool *pool, FFVkSPIRVCompiler *spv, FFVulkanShader *shd, int bits)
 
static void vk_decode_dpx_uninit (FFVulkanDecodeShared *ctx)
 
static int vk_decode_dpx_init (AVCodecContext *avctx)
 
static void vk_dpx_free_frame_priv (AVRefStructOpaque _hwctx, void *data)
 

Variables

const char * ff_source_common_comp
 
const char * ff_source_dpx_unpack_comp
 
const char * ff_source_dpx_copy_comp
 
const FFVulkanDecodeDescriptor ff_vk_dec_dpx_desc
 
const FFHWAccel ff_dpx_vulkan_hwaccel
 

Function Documentation

◆ host_upload_image()

static int host_upload_image ( AVCodecContext *  avctx,
FFVulkanDecodeContext *  dec,
DPXDecContext *  dpx,
const uint8_t *  src,
uint32_t  size 
)
static

Definition at line 53 of file vulkan_dpx.c.

Referenced by vk_dpx_start_frame().

◆ vk_dpx_start_frame()

static int vk_dpx_start_frame ( AVCodecContext *  avctx,
const AVBufferRef *  buffer_ref,
av_unused const uint8_t *  buffer,
av_unused uint32_t  size 
)
static

Definition at line 153 of file vulkan_dpx.c.

◆ vk_dpx_decode_slice()

static int vk_dpx_decode_slice ( AVCodecContext *  avctx,
const uint8_t *  data,
uint32_t  size 
)
static

Definition at line 186 of file vulkan_dpx.c.

◆ vk_dpx_end_frame()

static int vk_dpx_end_frame ( AVCodecContext *  avctx)
static

Definition at line 205 of file vulkan_dpx.c.

◆ init_shader()

static int init_shader ( AVCodecContext *  avctx,
FFVulkanContext *  s,
FFVkExecPool *  pool,
FFVkSPIRVCompiler *  spv,
FFVulkanShader *  shd,
int  bits 
)
static

Definition at line 297 of file vulkan_dpx.c.

Referenced by vk_decode_dpx_init().

◆ vk_decode_dpx_uninit()

static void vk_decode_dpx_uninit ( FFVulkanDecodeShared *  ctx)
static

Definition at line 387 of file vulkan_dpx.c.

Referenced by vk_decode_dpx_init().

◆ vk_decode_dpx_init()

static int vk_decode_dpx_init ( AVCodecContext *  avctx)
static

Definition at line 398 of file vulkan_dpx.c.

◆ vk_dpx_free_frame_priv()

static void vk_dpx_free_frame_priv ( AVRefStructOpaque  _hwctx,
void *  data 
)
static

Definition at line 447 of file vulkan_dpx.c.

Variable Documentation

◆ ff_source_common_comp

const char* ff_source_common_comp

Referenced by init_shader().

◆ ff_source_dpx_unpack_comp

const char* ff_source_dpx_unpack_comp

Referenced by init_shader().

◆ ff_source_dpx_copy_comp

const char* ff_source_dpx_copy_comp

Referenced by init_shader().

◆ ff_vk_dec_dpx_desc

const FFVulkanDecodeDescriptor ff_vk_dec_dpx_desc
Initial value:
= {
.codec_id = AV_CODEC_ID_DPX,
.decode_extension = FF_VK_EXT_PUSH_DESCRIPTOR,
.queue_flags = VK_QUEUE_COMPUTE_BIT,
}

Definition at line 32 of file vulkan_dpx.c.

◆ ff_dpx_vulkan_hwaccel

const FFHWAccel ff_dpx_vulkan_hwaccel
Initial value:
= {
.p.name = "dpx_vulkan",
.p.type = AVMEDIA_TYPE_VIDEO,
.p.id = AV_CODEC_ID_DPX,
.p.pix_fmt = AV_PIX_FMT_VULKAN,
.start_frame = &vk_dpx_start_frame,
.decode_slice = &vk_dpx_decode_slice,
.end_frame = &vk_dpx_end_frame,
.free_frame_priv = &vk_dpx_free_frame_priv,
.frame_priv_data_size = sizeof(DPXVulkanDecodePicture),
.init = &vk_decode_dpx_init,
.update_thread_context = &ff_vk_update_thread_context,
.uninit = &ff_vk_decode_uninit,
.frame_params = &ff_vk_frame_params,
.priv_data_size = sizeof(FFVulkanDecodeContext),
.caps_internal = HWACCEL_CAP_ASYNC_SAFE | HWACCEL_CAP_THREAD_SAFE,
}

Definition at line 457 of file vulkan_dpx.c.

AV_CODEC_ID_DPX
@ AV_CODEC_ID_DPX
Definition: codec_id.h:180
FFVulkanDecodeContext
Definition: vulkan_decode.h:54
AV_PIX_FMT_VULKAN
@ AV_PIX_FMT_VULKAN
Vulkan hardware images.
Definition: pixfmt.h:379
HWACCEL_CAP_THREAD_SAFE
#define HWACCEL_CAP_THREAD_SAFE
Definition: hwaccel_internal.h:32
vk_dpx_decode_slice
static int vk_dpx_decode_slice(AVCodecContext *avctx, const uint8_t *data, uint32_t size)
Definition: vulkan_dpx.c:186
HWACCEL_CAP_ASYNC_SAFE
#define HWACCEL_CAP_ASYNC_SAFE
Header providing the internals of AVHWAccel.
Definition: hwaccel_internal.h:31
vk_dpx_free_frame_priv
static void vk_dpx_free_frame_priv(AVRefStructOpaque _hwctx, void *data)
Definition: vulkan_dpx.c:447
ff_vk_decode_uninit
int ff_vk_decode_uninit(AVCodecContext *avctx)
Free decoder.
Definition: vulkan_decode.c:1277
ff_vk_frame_params
int ff_vk_frame_params(AVCodecContext *avctx, AVBufferRef *hw_frames_ctx)
Initialize hw_frames_ctx with the parameters needed to decode the stream using the parameters from av...
Definition: vulkan_decode.c:1139
init
int(* init)(AVBSFContext *ctx)
Definition: dts2pts.c:550
FF_VK_EXT_PUSH_DESCRIPTOR
#define FF_VK_EXT_PUSH_DESCRIPTOR
Definition: vulkan_functions.h:48
uninit
static void uninit(AVBSFContext *ctx)
Definition: pcm_rechunk.c:68
vk_decode_dpx_init
static int vk_decode_dpx_init(AVCodecContext *avctx)
Definition: vulkan_dpx.c:398
update_thread_context
the pkt_dts and pkt_pts fields in AVFrame will work as usual Restrictions on codec whose streams don t reset across will not work because their bitstreams cannot be decoded in parallel *The contents of buffers must not be read before as well as code calling up to before the decode process starts Call have update_thread_context() run it in the next thread. Add AV_CODEC_CAP_FRAME_THREADS to the codec capabilities. There will be very little speed gain at this point but it should work. Use ff_thread_get_buffer()(or ff_progress_frame_get_buffer() in case you have inter-frame dependencies and use the ProgressFrame API) to allocate frame buffers. Call ff_progress_frame_report() after some part of the current picture has decoded. A good place to put this is where draw_horiz_band() is called - add this if it isn 't called anywhere
ff_vk_update_thread_context
int ff_vk_update_thread_context(AVCodecContext *dst, const AVCodecContext *src)
Synchronize the contexts between 2 threads.
Definition: vulkan_decode.c:134
DPXVulkanDecodePicture
Definition: vulkan_dpx.c:38
AVMEDIA_TYPE_VIDEO
@ AVMEDIA_TYPE_VIDEO
Definition: avutil.h:200
vk_dpx_end_frame
static int vk_dpx_end_frame(AVCodecContext *avctx)
Definition: vulkan_dpx.c:205
vk_dpx_start_frame
static int vk_dpx_start_frame(AVCodecContext *avctx, const AVBufferRef *buffer_ref, av_unused const uint8_t *buffer, av_unused uint32_t size)
Definition: vulkan_dpx.c:153
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