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Code Issues Releases Activity

avcodec/vulkan_video: Don't use sparse table

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ff_vk_codec_map currently is an array indexed by AVCodecID;
it has AV_CODEC_ID_FIRST_AUDIO (= 65536) entries, but uses
only three of them; only 24B of 1MiB were actually used

This commit fixes this by adding an AVCodecID field to the table
and making it non-sparse.

Reviewed-by: Lynne <dev@lynne.ee>
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
This commit is contained in:
Andreas Rheinhardt 2024-03-03 10:51:27 +01:00
parent c6e1793e7a
commit cb15b7b29e
3 changed files with 23 additions and 11 deletions
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17
libavcodec/vulkan_decode.c
View File

@ -20,6 +20,7 @@
#include "vulkan_video.h"
#include "vulkan_decode.h"
#include "config_components.h"
#include "libavutil/avassert.h"
#if CONFIG_H264_VULKAN_HWACCEL
extern const VkExtensionProperties ff_vk_dec_h264_ext;
@ -43,6 +44,15 @@ static const VkExtensionProperties *dec_ext[] = {
#endif
};
static const FFVkCodecMap *get_codecmap(enum AVCodecID codec_id)
{
for (size_t i = 0; i < FF_ARRAY_ELEMS(ff_vk_codec_map); i++)
if (ff_vk_codec_map[i].codec_id == codec_id)
return &ff_vk_codec_map[i];
av_assert1(!"unreachable");
return NULL;
}
static const VkVideoProfileInfoKHR *get_video_profile(FFVulkanDecodeShared *ctx, enum AVCodecID codec_id)
{
const VkVideoProfileListInfoKHR *profile_list;
@ -737,7 +747,7 @@ static int vulkan_decode_get_profile(AVCodecContext *avctx, AVBufferRef *frames_
{
VkResult ret;
int max_level, base_profile, cur_profile;
const struct FFVkCodecMap *vk_codec = &ff_vk_codec_map[avctx->codec_id];
const FFVkCodecMap *vk_codec = get_codecmap(avctx->codec_id);
AVHWFramesContext *frames = (AVHWFramesContext *)frames_ref->data;
AVHWDeviceContext *device = (AVHWDeviceContext *)frames->device_ref->data;
AVVulkanDeviceContext *hwctx = device->hwctx;
@ -1111,6 +1121,7 @@ int ff_vk_decode_init(AVCodecContext *avctx)
FFVulkanContext *s;
FFVulkanFunctions *vk;
const VkVideoProfileInfoKHR *profile;
const FFVkCodecMap *vk_codec;
VkVideoDecodeH264SessionParametersCreateInfoKHR h264_params = {
.sType = VK_STRUCTURE_TYPE_VIDEO_DECODE_H264_SESSION_PARAMETERS_CREATE_INFO_KHR,
@ -1167,9 +1178,9 @@ int ff_vk_decode_init(AVCodecContext *avctx)
/* Create queue context */
qf = ff_vk_qf_init(s, &ctx->qf, VK_QUEUE_VIDEO_DECODE_BIT_KHR);
vk_codec = get_codecmap(avctx->codec_id);
/* Check for support */
if (!(s->video_props[qf].videoCodecOperations &
ff_vk_codec_map[avctx->codec_id].decode_op)) {
if (!(s->video_props[qf].videoCodecOperations & vk_codec->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);

11
libavcodec/vulkan_video.c
View File

@ -20,20 +20,23 @@
#include "vulkan_video.h"
const FFVkCodecMap ff_vk_codec_map[AV_CODEC_ID_FIRST_AUDIO] = {
[AV_CODEC_ID_H264] = {
const FFVkCodecMap ff_vk_codec_map[3] = {
{
.codec_id = AV_CODEC_ID_H264,
0,
0,
FF_VK_EXT_VIDEO_DECODE_H264,
VK_VIDEO_CODEC_OPERATION_DECODE_H264_BIT_KHR,
},
[AV_CODEC_ID_HEVC] = {
{
.codec_id = AV_CODEC_ID_HEVC,
0,
0,
FF_VK_EXT_VIDEO_DECODE_H265,
VK_VIDEO_CODEC_OPERATION_DECODE_H265_BIT_KHR
},
[AV_CODEC_ID_AV1] = {
{
.codec_id = AV_CODEC_ID_AV1,
0,
0,
FF_VK_EXT_VIDEO_DECODE_AV1,

6
libavcodec/vulkan_video.h
View File

@ -32,6 +32,7 @@
#define CODEC_VER(ver) CODEC_VER_MAJ(ver), CODEC_VER_MIN(ver), CODEC_VER_PAT(ver)
typedef struct FFVkCodecMap {
enum AVCodecID codec_id;
FFVulkanExtensions encode_extension;
VkVideoCodecOperationFlagBitsKHR encode_op;
FFVulkanExtensions decode_extension;
@ -46,10 +47,7 @@ typedef struct FFVkVideoSession {
AVBufferPool *buf_pool;
} FFVkVideoCommon;
/**
* Index is codec_id.
*/
extern const FFVkCodecMap ff_vk_codec_map[AV_CODEC_ID_FIRST_AUDIO];
extern const FFVkCodecMap ff_vk_codec_map[3];
/**
* Get pixfmt from a Vulkan format.