On 20/05/2024 16:52, tong1.wu-at-intel....@ffmpeg.org wrote:
From: Tong Wu <tong1...@intel.com>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...@intel.com> --- libavcodec/hw_base_encode.h | 56 +++++++++++++++++++++++++++++++++++++ libavcodec/vaapi_encode.h | 39 +++++--------------------- 2 files changed, 63 insertions(+), 32 deletions(-) create mode 100644 libavcodec/hw_base_encode.h diff --git a/libavcodec/hw_base_encode.h b/libavcodec/hw_base_encode.h new file mode 100644 index 0000000000..1996179456 --- /dev/null +++ b/libavcodec/hw_base_encode.h @@ -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 HWBaseEncodeContext { + const AVClass *class; +} HWBaseEncodeContext; + +#endif /* AVCODEC_HW_BASE_ENCODE_H */ + diff --git a/libavcodec/vaapi_encode.h b/libavcodec/vaapi_encode.h index 0eed9691ca..f5c9be8973 100644 --- a/libavcodec/vaapi_encode.h +++ b/libavcodec/vaapi_encode.h @@ -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. + HWBaseEncodeContext 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.)
Would you mind changing ff_hw_ functions to take in HWBaseEncodePicture first, and AVCodecContext only if needed? You have a lot of functions like hw_base_encode_add_ref that don't even use AVCodecContext, not even to get a context.
Also, HWBaseEncodePicture should be prefixed with FF, so FFHWBaseEncodePicture.
PICTURE_TYPE_* and FLAG_SLICE_* should also have an FF_HW_ prefix.Instead of defining PICTURE_TYPE_I/P/B, would it be possible to use AV_PICTURE_TYPE_I/P/B with an additional `bool key;` or similar, which would remove hardcoding of MPEGese in the API. That would allow differentiating intra-only frames from IDR (intra-only keyframes).
> static inline const char *ff_hw_base_encode_get_pictype_name(const int type) {
Newline missing.I'm working on integrating this into Vulkan right now, it seems suitable and saves me a lot of time, thanks for working on it.
OpenPGP_0xA2FEA5F03F034464.asc
Description: OpenPGP public key
OpenPGP_signature.asc
Description: OpenPGP digital signature
_______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-devel To unsubscribe, visit link above, or email ffmpeg-devel-requ...@ffmpeg.org with subject "unsubscribe".
