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avcodec/vaapi_encode: introduce a base layer for vaapi encode

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Since VAAPI and future D3D12VA implementation may share some common parameters,
a base layer encode context is introduced as vaapi context's base.

Signed-off-by: Tong Wu <tong1.wu@intel.com>
This commit is contained in:
Tong Wu 2024-04-17 13:40:36 +08:00 committed by Lynne
parent e939f02ce6
commit 3747bf0426
2 changed files with 63 additions and 32 deletions
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56
libavcodec/hw_base_encode.h Normal file
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@ -0,0 +1,56 @@
/*
* 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_HW_BASE_ENCODE_H
#define AVCODEC_HW_BASE_ENCODE_H
#define MAX_DPB_SIZE 16
#define MAX_PICTURE_REFERENCES 2
#define MAX_REORDER_DELAY 16
#define MAX_ASYNC_DEPTH 64
#define MAX_REFERENCE_LIST_NUM 2
enum {
PICTURE_TYPE_IDR = 0,
PICTURE_TYPE_I = 1,
PICTURE_TYPE_P = 2,
PICTURE_TYPE_B = 3,
};
enum {
// Codec supports controlling the subdivision of pictures into slices.
FLAG_SLICE_CONTROL = 1 << 0,
// Codec only supports constant quality (no rate control).
FLAG_CONSTANT_QUALITY_ONLY = 1 << 1,
// Codec is intra-only.
FLAG_INTRA_ONLY = 1 << 2,
// Codec supports B-pictures.
FLAG_B_PICTURES = 1 << 3,
// Codec supports referencing B-pictures.
FLAG_B_PICTURE_REFERENCES = 1 << 4,
// Codec supports non-IDR key pictures (that is, key pictures do
// not necessarily empty the DPB).
FLAG_NON_IDR_KEY_PICTURES = 1 << 5,
};
typedef struct FFHWBaseEncodeContext {
const AVClass *class;
} FFHWBaseEncodeContext;
#endif /* AVCODEC_HW_BASE_ENCODE_H */

39
libavcodec/vaapi_encode.h
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@ -33,34 +33,27 @@
#include "avcodec.h"
#include "hwconfig.h"
#include "hw_base_encode.h"
struct VAAPIEncodeType;
struct VAAPIEncodePicture;
// Codec output packet without timestamp delay, which means the
// output packet has same PTS and DTS.
#define FLAG_TIMESTAMP_NO_DELAY 1 << 6
enum {
MAX_CONFIG_ATTRIBUTES = 4,
MAX_GLOBAL_PARAMS = 4,
MAX_DPB_SIZE = 16,
MAX_PICTURE_REFERENCES = 2,
MAX_REORDER_DELAY = 16,
MAX_PARAM_BUFFER_SIZE = 1024,
// A.4.1: table A.6 allows at most 22 tile rows for any level.
MAX_TILE_ROWS = 22,
// A.4.1: table A.6 allows at most 20 tile columns for any level.
MAX_TILE_COLS = 20,
MAX_ASYNC_DEPTH = 64,
MAX_REFERENCE_LIST_NUM = 2,
};
extern const AVCodecHWConfigInternal *const ff_vaapi_encode_hw_configs[];
enum {
PICTURE_TYPE_IDR = 0,
PICTURE_TYPE_I = 1,
PICTURE_TYPE_P = 2,
PICTURE_TYPE_B = 3,
};
typedef struct VAAPIEncodeSlice {
int index;
int row_start;
@ -193,7 +186,8 @@ typedef struct VAAPIEncodeRCMode {
} VAAPIEncodeRCMode;
typedef struct VAAPIEncodeContext {
const AVClass *class;
// Base context.
FFHWBaseEncodeContext base;
// Codec-specific hooks.
const struct VAAPIEncodeType *codec;
@ -397,25 +391,6 @@ typedef struct VAAPIEncodeContext {
AVPacket *tail_pkt;
} VAAPIEncodeContext;
enum {
// Codec supports controlling the subdivision of pictures into slices.
FLAG_SLICE_CONTROL = 1 << 0,
// Codec only supports constant quality (no rate control).
FLAG_CONSTANT_QUALITY_ONLY = 1 << 1,
// Codec is intra-only.
FLAG_INTRA_ONLY = 1 << 2,
// Codec supports B-pictures.
FLAG_B_PICTURES = 1 << 3,
// Codec supports referencing B-pictures.
FLAG_B_PICTURE_REFERENCES = 1 << 4,
// Codec supports non-IDR key pictures (that is, key pictures do
// not necessarily empty the DPB).
FLAG_NON_IDR_KEY_PICTURES = 1 << 5,
// Codec output packet without timestamp delay, which means the
// output packet has same PTS and DTS.
FLAG_TIMESTAMP_NO_DELAY = 1 << 6,
};
typedef struct VAAPIEncodeType {
// List of supported profiles and corresponding VAAPI profiles.
// (Must end with AV_PROFILE_UNKNOWN.)