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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 "libavutil/opt.h"
# include "vulkan.h"
# include "scale_eval.h"
# include "internal.h"
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# include "colorspace.h"
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# define CGROUPS (int [3]){ 32, 32, 1 }
enum ScalerFunc {
F_BILINEAR = 0 ,
F_NEAREST ,
F_NB ,
} ;
typedef struct ScaleVulkanContext {
VulkanFilterContext vkctx ;
int initialized ;
FFVkExecContext * exec ;
VulkanPipeline * pl ;
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FFVkBuffer params_buf ;
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/* Shader updators, must be in the main filter struct */
VkDescriptorImageInfo input_images [ 3 ] ;
VkDescriptorImageInfo output_images [ 3 ] ;
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VkDescriptorBufferInfo params_desc ;
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enum ScalerFunc scaler ;
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char * out_format_string ;
enum AVColorRange out_range ;
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char * w_expr ;
char * h_expr ;
} ScaleVulkanContext ;
static const char scale_bilinear [ ] = {
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C ( 0 , vec4 scale_bilinear ( int idx , ivec2 pos , vec2 crop_range , vec2 crop_off ) )
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C ( 0 , { )
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C ( 1 , vec2 npos = ( vec2 ( pos ) + 0.5f ) / imageSize ( output_img [ idx ] ) ; )
C ( 1 , npos * = crop_range ; /* Reduce the range */ )
C ( 1 , npos + = crop_off ; /* Offset the start */ )
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C ( 1 , return texture ( input_img [ idx ] , npos ) ; )
C ( 0 , } )
} ;
static const char rgb2yuv [ ] = {
C ( 0 , vec4 rgb2yuv ( vec4 src , int fullrange ) )
C ( 0 , { )
C ( 1 , src * = yuv_matrix ; )
C ( 1 , if ( fullrange = = 1 ) { )
C ( 2 , src + = vec4 ( 0.0 , 0.5 , 0.5 , 0.0 ) ; )
C ( 1 , } else { )
C ( 2 , src * = vec4 ( 219.0 / 255.0 , 224.0 / 255.0 , 224.0 / 255.0 , 1.0 ) ; )
C ( 2 , src + = vec4 ( 16.0 / 255.0 , 128.0 / 255.0 , 128.0 / 255.0 , 0.0 ) ; )
C ( 1 , } )
C ( 1 , return src ; )
C ( 0 , } )
} ;
static const char write_nv12 [ ] = {
C ( 0 , void write_nv12 ( vec4 src , ivec2 pos ) )
C ( 0 , { )
C ( 1 , imageStore ( output_img [ 0 ] , pos , vec4 ( src . r , 0.0 , 0.0 , 0.0 ) ) ; )
C ( 1 , pos / = ivec2 ( 2 ) ; )
C ( 1 , imageStore ( output_img [ 1 ] , pos , vec4 ( src . g , src . b , 0.0 , 0.0 ) ) ; )
C ( 0 , } )
} ;
static const char write_420 [ ] = {
C ( 0 , void write_420 ( vec4 src , ivec2 pos ) )
C ( 0 , { )
C ( 1 , imageStore ( output_img [ 0 ] , pos , vec4 ( src . r , 0.0 , 0.0 , 0.0 ) ) ; )
C ( 1 , pos / = ivec2 ( 2 ) ; )
C ( 1 , imageStore ( output_img [ 1 ] , pos , vec4 ( src . g , 0.0 , 0.0 , 0.0 ) ) ; )
C ( 1 , imageStore ( output_img [ 2 ] , pos , vec4 ( src . b , 0.0 , 0.0 , 0.0 ) ) ; )
C ( 0 , } )
} ;
static const char write_444 [ ] = {
C ( 0 , void write_444 ( vec4 src , ivec2 pos ) )
C ( 0 , { )
C ( 1 , imageStore ( output_img [ 0 ] , pos , vec4 ( src . r , 0.0 , 0.0 , 0.0 ) ) ; )
C ( 1 , imageStore ( output_img [ 1 ] , pos , vec4 ( src . g , 0.0 , 0.0 , 0.0 ) ) ; )
C ( 1 , imageStore ( output_img [ 2 ] , pos , vec4 ( src . b , 0.0 , 0.0 , 0.0 ) ) ; )
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C ( 0 , } )
} ;
static av_cold int init_filter ( AVFilterContext * ctx , AVFrame * in )
{
int err ;
VkSampler * sampler ;
VkFilter sampler_mode ;
ScaleVulkanContext * s = ctx - > priv ;
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int crop_x = in - > crop_left ;
int crop_y = in - > crop_top ;
int crop_w = in - > width - ( in - > crop_left + in - > crop_right ) ;
int crop_h = in - > height - ( in - > crop_top + in - > crop_bottom ) ;
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switch ( s - > scaler ) {
case F_NEAREST :
sampler_mode = VK_FILTER_NEAREST ;
break ;
case F_BILINEAR :
sampler_mode = VK_FILTER_LINEAR ;
break ;
} ;
/* Create a sampler */
sampler = ff_vk_init_sampler ( ctx , 0 , sampler_mode ) ;
if ( ! sampler )
return AVERROR_EXTERNAL ;
s - > pl = ff_vk_create_pipeline ( ctx ) ;
if ( ! s - > pl )
return AVERROR ( ENOMEM ) ;
{ /* Create the shader */
VulkanDescriptorSetBinding desc_i [ 2 ] = {
{
. name = " input_img " ,
. type = VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER ,
. dimensions = 2 ,
. elems = av_pix_fmt_count_planes ( s - > vkctx . input_format ) ,
. stages = VK_SHADER_STAGE_COMPUTE_BIT ,
. updater = s - > input_images ,
. samplers = DUP_SAMPLER_ARRAY4 ( * sampler ) ,
} ,
{
. name = " output_img " ,
. type = VK_DESCRIPTOR_TYPE_STORAGE_IMAGE ,
. mem_layout = ff_vk_shader_rep_fmt ( s - > vkctx . output_format ) ,
. mem_quali = " writeonly " ,
. dimensions = 2 ,
. elems = av_pix_fmt_count_planes ( s - > vkctx . output_format ) ,
. stages = VK_SHADER_STAGE_COMPUTE_BIT ,
. updater = s - > output_images ,
} ,
} ;
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VulkanDescriptorSetBinding desc_b = {
. name = " params " ,
. type = VK_DESCRIPTOR_TYPE_STORAGE_BUFFER ,
. mem_quali = " readonly " ,
. mem_layout = " std430 " ,
. stages = VK_SHADER_STAGE_COMPUTE_BIT ,
. updater = & s - > params_desc ,
. buf_content = " mat4 yuv_matrix; " ,
} ;
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SPIRVShader * shd = ff_vk_init_shader ( ctx , s - > pl , " scale_compute " ,
VK_SHADER_STAGE_COMPUTE_BIT ) ;
if ( ! shd )
return AVERROR ( ENOMEM ) ;
ff_vk_set_compute_shader_sizes ( ctx , shd , CGROUPS ) ;
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RET ( ff_vk_add_descriptor_set ( ctx , s - > pl , shd , desc_i , 2 , 0 ) ) ; /* set 0 */
RET ( ff_vk_add_descriptor_set ( ctx , s - > pl , shd , & desc_b , 1 , 0 ) ) ; /* set 0 */
GLSLD ( scale_bilinear ) ;
if ( s - > vkctx . output_format ! = s - > vkctx . input_format ) {
GLSLD ( rgb2yuv ) ;
}
switch ( s - > vkctx . output_format ) {
case AV_PIX_FMT_NV12 : GLSLD ( write_nv12 ) ; break ;
case AV_PIX_FMT_YUV420P : GLSLD ( write_420 ) ; break ;
case AV_PIX_FMT_YUV444P : GLSLD ( write_444 ) ; break ;
default : break ;
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}
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GLSLC ( 0 , void main ( ) ) ;
GLSLC ( 0 , { ) ;
GLSLC ( 1 , ivec2 size ; ) ;
GLSLC ( 1 , ivec2 pos = ivec2 ( gl_GlobalInvocationID . xy ) ; ) ;
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GLSLF ( 1 , vec2 in_d = vec2 ( % i , % i ) ; , in - > width , in - > height ) ;
GLSLF ( 1 , vec2 c_r = vec2 ( % i , % i ) / in_d ; , crop_w , crop_h ) ;
GLSLF ( 1 , vec2 c_o = vec2 ( % i , % i ) / in_d ; , crop_x , crop_y ) ;
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GLSLC ( 0 , ) ;
if ( s - > vkctx . output_format = = s - > vkctx . input_format ) {
for ( int i = 0 ; i < desc_i [ 1 ] . elems ; i + + ) {
GLSLF ( 1 , size = imageSize ( output_img [ % i ] ) ; , i ) ;
GLSLC ( 1 , if ( IS_WITHIN ( pos , size ) ) { ) ;
switch ( s - > scaler ) {
case F_NEAREST :
case F_BILINEAR :
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GLSLF ( 2 , vec4 res = scale_bilinear ( % i , pos , c_r , c_o ) ; , i ) ;
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GLSLF ( 2 , imageStore ( output_img [ % i ] , pos , res ) ; , i ) ;
break ;
} ;
GLSLC ( 1 , } ) ;
}
} else {
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GLSLC ( 1 , vec4 res = scale_bilinear ( 0 , pos , c_r , c_o ) ; ) ;
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GLSLF ( 1 , res = rgb2yuv ( res , % i ) ; , s - > out_range = = AVCOL_RANGE_JPEG ) ;
switch ( s - > vkctx . output_format ) {
case AV_PIX_FMT_NV12 : GLSLC ( 1 , write_nv12 ( res , pos ) ; ) ; break ;
case AV_PIX_FMT_YUV420P : GLSLC ( 1 , write_420 ( res , pos ) ; ) ; break ;
case AV_PIX_FMT_YUV444P : GLSLC ( 1 , write_444 ( res , pos ) ; ) ; break ;
default : return AVERROR ( EINVAL ) ;
}
}
GLSLC ( 0 , } ) ;
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RET ( ff_vk_compile_shader ( ctx , shd , " main " ) ) ;
}
RET ( ff_vk_init_pipeline_layout ( ctx , s - > pl ) ) ;
RET ( ff_vk_init_compute_pipeline ( ctx , s - > pl ) ) ;
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if ( s - > vkctx . output_format ! = s - > vkctx . input_format ) {
const struct LumaCoefficients * lcoeffs ;
double tmp_mat [ 3 ] [ 3 ] ;
struct {
float yuv_matrix [ 4 ] [ 4 ] ;
} * par ;
lcoeffs = ff_get_luma_coefficients ( in - > colorspace ) ;
if ( ! lcoeffs ) {
av_log ( ctx , AV_LOG_ERROR , " Unsupported colorspace \n " ) ;
return AVERROR ( EINVAL ) ;
}
err = ff_vk_create_buf ( ctx , & s - > params_buf ,
sizeof ( * par ) ,
VK_BUFFER_USAGE_STORAGE_BUFFER_BIT ,
VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT ) ;
if ( err )
return err ;
err = ff_vk_map_buffers ( ctx , & s - > params_buf , ( uint8_t * * ) & par , 1 , 0 ) ;
if ( err )
return err ;
ff_fill_rgb2yuv_table ( lcoeffs , tmp_mat ) ;
memset ( par , 0 , sizeof ( * par ) ) ;
for ( int y = 0 ; y < 3 ; y + + )
for ( int x = 0 ; x < 3 ; x + + )
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par - > yuv_matrix [ x ] [ y ] = tmp_mat [ x ] [ y ] ;
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par - > yuv_matrix [ 3 ] [ 3 ] = 1.0 ;
err = ff_vk_unmap_buffers ( ctx , & s - > params_buf , 1 , 1 ) ;
if ( err )
return err ;
s - > params_desc . buffer = s - > params_buf . buf ;
s - > params_desc . range = VK_WHOLE_SIZE ;
ff_vk_update_descriptor_set ( ctx , s - > pl , 1 ) ;
}
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/* Execution context */
RET ( ff_vk_create_exec_ctx ( ctx , & s - > exec ,
s - > vkctx . hwctx - > queue_family_comp_index ) ) ;
s - > initialized = 1 ;
return 0 ;
fail :
return err ;
}
static int process_frames ( AVFilterContext * avctx , AVFrame * out_f , AVFrame * in_f )
{
int err = 0 ;
ScaleVulkanContext * s = avctx - > priv ;
AVVkFrame * in = ( AVVkFrame * ) in_f - > data [ 0 ] ;
AVVkFrame * out = ( AVVkFrame * ) out_f - > data [ 0 ] ;
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VkImageMemoryBarrier barriers [ AV_NUM_DATA_POINTERS * 2 ] ;
int barrier_count = 0 ;
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for ( int i = 0 ; i < av_pix_fmt_count_planes ( s - > vkctx . input_format ) ; i + + ) {
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RET ( ff_vk_create_imageview ( avctx , & s - > input_images [ i ] . imageView , in - > img [ i ] ,
av_vkfmt_from_pixfmt ( s - > vkctx . input_format ) [ i ] ,
ff_comp_identity_map ) ) ;
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s - > input_images [ i ] . imageLayout = VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL ;
}
for ( int i = 0 ; i < av_pix_fmt_count_planes ( s - > vkctx . output_format ) ; i + + ) {
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RET ( ff_vk_create_imageview ( avctx , & s - > output_images [ i ] . imageView , out - > img [ i ] ,
av_vkfmt_from_pixfmt ( s - > vkctx . output_format ) [ i ] ,
ff_comp_identity_map ) ) ;
s - > output_images [ i ] . imageLayout = VK_IMAGE_LAYOUT_GENERAL ;
}
ff_vk_update_descriptor_set ( avctx , s - > pl , 0 ) ;
ff_vk_start_exec_recording ( avctx , s - > exec ) ;
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for ( int i = 0 ; i < av_pix_fmt_count_planes ( s - > vkctx . input_format ) ; i + + ) {
VkImageMemoryBarrier bar = {
. sType = VK_STRUCTURE_TYPE_IMAGE_MEMORY_BARRIER ,
. srcAccessMask = 0 ,
. dstAccessMask = VK_ACCESS_SHADER_READ_BIT ,
. oldLayout = in - > layout [ i ] ,
. newLayout = s - > input_images [ i ] . imageLayout ,
. srcQueueFamilyIndex = VK_QUEUE_FAMILY_IGNORED ,
. dstQueueFamilyIndex = VK_QUEUE_FAMILY_IGNORED ,
. image = in - > img [ i ] ,
. subresourceRange . aspectMask = VK_IMAGE_ASPECT_COLOR_BIT ,
. subresourceRange . levelCount = 1 ,
. subresourceRange . layerCount = 1 ,
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} ;
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memcpy ( & barriers [ barrier_count + + ] , & bar , sizeof ( VkImageMemoryBarrier ) ) ;
in - > layout [ i ] = bar . newLayout ;
in - > access [ i ] = bar . dstAccessMask ;
}
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for ( int i = 0 ; i < av_pix_fmt_count_planes ( s - > vkctx . output_format ) ; i + + ) {
VkImageMemoryBarrier bar = {
. sType = VK_STRUCTURE_TYPE_IMAGE_MEMORY_BARRIER ,
. srcAccessMask = 0 ,
. dstAccessMask = VK_ACCESS_SHADER_WRITE_BIT ,
. oldLayout = out - > layout [ i ] ,
. newLayout = s - > output_images [ i ] . imageLayout ,
. srcQueueFamilyIndex = VK_QUEUE_FAMILY_IGNORED ,
. dstQueueFamilyIndex = VK_QUEUE_FAMILY_IGNORED ,
. image = out - > img [ i ] ,
. subresourceRange . aspectMask = VK_IMAGE_ASPECT_COLOR_BIT ,
. subresourceRange . levelCount = 1 ,
. subresourceRange . layerCount = 1 ,
} ;
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memcpy ( & barriers [ barrier_count + + ] , & bar , sizeof ( VkImageMemoryBarrier ) ) ;
out - > layout [ i ] = bar . newLayout ;
out - > access [ i ] = bar . dstAccessMask ;
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}
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vkCmdPipelineBarrier ( s - > exec - > buf , VK_PIPELINE_STAGE_TOP_OF_PIPE_BIT ,
VK_PIPELINE_STAGE_COMPUTE_SHADER_BIT , 0 ,
0 , NULL , 0 , NULL , barrier_count , barriers ) ;
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ff_vk_bind_pipeline_exec ( avctx , s - > exec , s - > pl ) ;
vkCmdDispatch ( s - > exec - > buf ,
FFALIGN ( s - > vkctx . output_width , CGROUPS [ 0 ] ) / CGROUPS [ 0 ] ,
FFALIGN ( s - > vkctx . output_height , CGROUPS [ 1 ] ) / CGROUPS [ 1 ] , 1 ) ;
ff_vk_add_exec_dep ( avctx , s - > exec , in_f , VK_PIPELINE_STAGE_TOP_OF_PIPE_BIT ) ;
ff_vk_add_exec_dep ( avctx , s - > exec , out_f , VK_PIPELINE_STAGE_TOP_OF_PIPE_BIT ) ;
err = ff_vk_submit_exec_queue ( avctx , s - > exec ) ;
if ( err )
return err ;
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for ( int i = 0 ; i < av_pix_fmt_count_planes ( s - > vkctx . input_format ) ; i + + )
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ff_vk_destroy_imageview ( avctx , & s - > input_images [ i ] . imageView ) ;
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for ( int i = 0 ; i < av_pix_fmt_count_planes ( s - > vkctx . output_format ) ; i + + )
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ff_vk_destroy_imageview ( avctx , & s - > output_images [ i ] . imageView ) ;
fail :
return err ;
}
static int scale_vulkan_filter_frame ( AVFilterLink * link , AVFrame * in )
{
int err ;
AVFilterContext * ctx = link - > dst ;
ScaleVulkanContext * s = ctx - > priv ;
AVFilterLink * outlink = ctx - > outputs [ 0 ] ;
AVFrame * out = ff_get_video_buffer ( outlink , outlink - > w , outlink - > h ) ;
if ( ! out ) {
err = AVERROR ( ENOMEM ) ;
goto fail ;
}
if ( ! s - > initialized )
RET ( init_filter ( ctx , in ) ) ;
RET ( process_frames ( ctx , out , in ) ) ;
err = av_frame_copy_props ( out , in ) ;
if ( err < 0 )
goto fail ;
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if ( s - > out_range ! = AVCOL_RANGE_UNSPECIFIED )
out - > color_range = s - > out_range ;
if ( s - > vkctx . output_format ! = s - > vkctx . input_format )
out - > chroma_location = AVCHROMA_LOC_TOPLEFT ;
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av_frame_free ( & in ) ;
return ff_filter_frame ( outlink , out ) ;
fail :
av_frame_free ( & in ) ;
av_frame_free ( & out ) ;
return err ;
}
static int scale_vulkan_config_output ( AVFilterLink * outlink )
{
int err ;
AVFilterContext * avctx = outlink - > src ;
ScaleVulkanContext * s = avctx - > priv ;
AVFilterLink * inlink = outlink - > src - > inputs [ 0 ] ;
err = ff_scale_eval_dimensions ( s , s - > w_expr , s - > h_expr , inlink , outlink ,
& s - > vkctx . output_width ,
& s - > vkctx . output_height ) ;
if ( err < 0 )
return err ;
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if ( s - > out_format_string ) {
s - > vkctx . output_format = av_get_pix_fmt ( s - > out_format_string ) ;
if ( s - > vkctx . output_format = = AV_PIX_FMT_NONE ) {
av_log ( avctx , AV_LOG_ERROR , " Invalid output format. \n " ) ;
return AVERROR ( EINVAL ) ;
}
} else {
s - > vkctx . output_format = s - > vkctx . input_format ;
}
if ( s - > vkctx . output_format ! = s - > vkctx . input_format ) {
if ( ! ff_vk_mt_is_np_rgb ( s - > vkctx . input_format ) ) {
av_log ( avctx , AV_LOG_ERROR , " Unsupported input format for conversion \n " ) ;
return AVERROR ( EINVAL ) ;
}
if ( s - > vkctx . output_format ! = AV_PIX_FMT_NV12 & &
s - > vkctx . output_format ! = AV_PIX_FMT_YUV420P & &
s - > vkctx . output_format ! = AV_PIX_FMT_YUV444P ) {
av_log ( avctx , AV_LOG_ERROR , " Unsupported output format \n " ) ;
return AVERROR ( EINVAL ) ;
}
} else if ( s - > out_range ! = AVCOL_RANGE_UNSPECIFIED ) {
av_log ( avctx , AV_LOG_ERROR , " Cannot change range without converting format \n " ) ;
return AVERROR ( EINVAL ) ;
}
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err = ff_vk_filter_config_output ( outlink ) ;
if ( err < 0 )
return err ;
return 0 ;
}
static void scale_vulkan_uninit ( AVFilterContext * avctx )
{
ScaleVulkanContext * s = avctx - > priv ;
ff_vk_filter_uninit ( avctx ) ;
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ff_vk_free_buf ( avctx , & s - > params_buf ) ;
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s - > initialized = 0 ;
}
# define OFFSET(x) offsetof(ScaleVulkanContext, x)
# define FLAGS (AV_OPT_FLAG_FILTERING_PARAM | AV_OPT_FLAG_VIDEO_PARAM)
static const AVOption scale_vulkan_options [ ] = {
{ " w " , " Output video width " , OFFSET ( w_expr ) , AV_OPT_TYPE_STRING , { . str = " iw " } , . flags = FLAGS } ,
{ " h " , " Output video height " , OFFSET ( h_expr ) , AV_OPT_TYPE_STRING , { . str = " ih " } , . flags = FLAGS } ,
{ " scaler " , " Scaler function " , OFFSET ( scaler ) , AV_OPT_TYPE_INT , { . i64 = F_BILINEAR } , 0 , F_NB , . flags = FLAGS , " scaler " } ,
{ " bilinear " , " Bilinear interpolation (fastest) " , 0 , AV_OPT_TYPE_CONST , { . i64 = F_BILINEAR } , 0 , 0 , . flags = FLAGS , " scaler " } ,
{ " nearest " , " Nearest (useful for pixel art) " , 0 , AV_OPT_TYPE_CONST , { . i64 = F_NEAREST } , 0 , 0 , . flags = FLAGS , " scaler " } ,
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{ " format " , " Output video format (software format of hardware frames) " , OFFSET ( out_format_string ) , AV_OPT_TYPE_STRING , . flags = FLAGS } ,
{ " out_range " , " Output colour range (from 0 to 2) (default 0) " , OFFSET ( out_range ) , AV_OPT_TYPE_INT , { . i64 = AVCOL_RANGE_UNSPECIFIED } , AVCOL_RANGE_UNSPECIFIED , AVCOL_RANGE_JPEG , . flags = FLAGS , " range " } ,
{ " full " , " Full range " , 0 , AV_OPT_TYPE_CONST , { . i64 = AVCOL_RANGE_JPEG } , 0 , 0 , FLAGS , " range " } ,
{ " limited " , " Limited range " , 0 , AV_OPT_TYPE_CONST , { . i64 = AVCOL_RANGE_MPEG } , 0 , 0 , FLAGS , " range " } ,
{ " jpeg " , " Full range " , 0 , AV_OPT_TYPE_CONST , { . i64 = AVCOL_RANGE_JPEG } , 0 , 0 , FLAGS , " range " } ,
{ " mpeg " , " Limited range " , 0 , AV_OPT_TYPE_CONST , { . i64 = AVCOL_RANGE_MPEG } , 0 , 0 , FLAGS , " range " } ,
{ " tv " , " Limited range " , 0 , AV_OPT_TYPE_CONST , { . i64 = AVCOL_RANGE_MPEG } , 0 , 0 , FLAGS , " range " } ,
{ " pc " , " Full range " , 0 , AV_OPT_TYPE_CONST , { . i64 = AVCOL_RANGE_JPEG } , 0 , 0 , FLAGS , " range " } ,
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{ NULL } ,
} ;
AVFILTER_DEFINE_CLASS ( scale_vulkan ) ;
static const AVFilterPad scale_vulkan_inputs [ ] = {
{
. name = " default " ,
. type = AVMEDIA_TYPE_VIDEO ,
. filter_frame = & scale_vulkan_filter_frame ,
. config_props = & ff_vk_filter_config_input ,
} ,
{ NULL }
} ;
static const AVFilterPad scale_vulkan_outputs [ ] = {
{
. name = " default " ,
. type = AVMEDIA_TYPE_VIDEO ,
. config_props = & scale_vulkan_config_output ,
} ,
{ NULL }
} ;
AVFilter ff_vf_scale_vulkan = {
. name = " scale_vulkan " ,
. description = NULL_IF_CONFIG_SMALL ( " Scale Vulkan frames " ) ,
. priv_size = sizeof ( ScaleVulkanContext ) ,
. init = & ff_vk_filter_init ,
. uninit = & scale_vulkan_uninit ,
. query_formats = & ff_vk_filter_query_formats ,
. inputs = scale_vulkan_inputs ,
. outputs = scale_vulkan_outputs ,
. priv_class = & scale_vulkan_class ,
. flags_internal = FF_FILTER_FLAG_HWFRAME_AWARE ,
} ;