mirror of https://git.ffmpeg.org/ffmpeg.git
386 lines
13 KiB
C
386 lines
13 KiB
C
/*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* FFmpeg is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#ifndef AVCODEC_VAAPI_ENCODE_H
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#define AVCODEC_VAAPI_ENCODE_H
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#include <stdint.h>
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#include <va/va.h>
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#if VA_CHECK_VERSION(1, 0, 0)
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#include <va/va_str.h>
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#endif
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#include "libavutil/hwcontext.h"
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#include "libavutil/hwcontext_vaapi.h"
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#include "avcodec.h"
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#include "hwconfig.h"
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#include "hw_base_encode.h"
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struct VAAPIEncodeType;
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struct VAAPIEncodePicture;
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// Codec output packet without timestamp delay, which means the
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// output packet has same PTS and DTS.
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#define FLAG_TIMESTAMP_NO_DELAY 1 << 6
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enum {
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MAX_CONFIG_ATTRIBUTES = 4,
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MAX_GLOBAL_PARAMS = 4,
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MAX_PARAM_BUFFER_SIZE = 1024,
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// A.4.1: table A.6 allows at most 22 tile rows for any level.
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MAX_TILE_ROWS = 22,
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// A.4.1: table A.6 allows at most 20 tile columns for any level.
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MAX_TILE_COLS = 20,
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};
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extern const AVCodecHWConfigInternal *const ff_vaapi_encode_hw_configs[];
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typedef struct VAAPIEncodeSlice {
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int index;
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int row_start;
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int row_size;
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int block_start;
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int block_size;
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void *codec_slice_params;
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} VAAPIEncodeSlice;
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typedef struct VAAPIEncodePicture {
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FFHWBaseEncodePicture base;
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#if VA_CHECK_VERSION(1, 0, 0)
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// ROI regions.
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VAEncROI *roi;
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#else
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void *roi;
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#endif
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VASurfaceID input_surface;
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VASurfaceID recon_surface;
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int nb_param_buffers;
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VABufferID *param_buffers;
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/* Refcounted via the refstruct-API */
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VABufferID *output_buffer_ref;
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VABufferID output_buffer;
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void *codec_picture_params;
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int nb_slices;
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VAAPIEncodeSlice *slices;
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/**
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* indicate if current frame is an independent frame that the coded data
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* can be pushed to downstream directly. Coded of non-independent frame
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* data will be concatenated into next independent frame.
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*/
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int non_independent_frame;
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/** Tail data of current pic, used only for repeat header of AV1. */
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char tail_data[MAX_PARAM_BUFFER_SIZE];
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/** Byte length of tail_data. */
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size_t tail_size;
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} VAAPIEncodePicture;
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typedef struct VAAPIEncodeProfile {
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// lavc profile value (AV_PROFILE_*).
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int av_profile;
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// Supported bit depth.
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int depth;
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// Number of components.
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int nb_components;
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// Chroma subsampling in width dimension.
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int log2_chroma_w;
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// Chroma subsampling in height dimension.
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int log2_chroma_h;
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// VAAPI profile value.
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VAProfile va_profile;
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} VAAPIEncodeProfile;
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enum {
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RC_MODE_AUTO,
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RC_MODE_CQP,
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RC_MODE_CBR,
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RC_MODE_VBR,
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RC_MODE_ICQ,
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RC_MODE_QVBR,
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RC_MODE_AVBR,
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RC_MODE_MAX = RC_MODE_AVBR,
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};
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typedef struct VAAPIEncodeRCMode {
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// Mode from above enum (RC_MODE_*).
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int mode;
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// Name.
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const char *name;
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// Supported in the compile-time VAAPI version.
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int supported;
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// VA mode value (VA_RC_*).
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uint32_t va_mode;
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// Uses bitrate parameters.
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int bitrate;
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// Supports maxrate distinct from bitrate.
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int maxrate;
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// Uses quality value.
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int quality;
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// Supports HRD/VBV parameters.
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int hrd;
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} VAAPIEncodeRCMode;
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typedef struct VAAPIEncodeContext {
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// Base context.
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FFHWBaseEncodeContext base;
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// Codec-specific hooks.
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const struct VAAPIEncodeType *codec;
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// Use low power encoding mode.
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int low_power;
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// Max Frame Size
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int max_frame_size;
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// Explicitly set RC mode (otherwise attempt to pick from
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// available modes).
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int explicit_rc_mode;
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// Block Level based bitrate control.
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int blbrc;
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// Explicitly-set QP, for use with the "qp" options.
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// (Forces CQP mode when set, overriding everything else.)
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int explicit_qp;
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// Desired packed headers.
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unsigned int desired_packed_headers;
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// Everything above this point must be set before calling
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// ff_vaapi_encode_init().
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// Chosen encoding profile details.
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const VAAPIEncodeProfile *profile;
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// Chosen rate control mode details.
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const VAAPIEncodeRCMode *rc_mode;
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// RC quality level - meaning depends on codec and RC mode.
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// In CQP mode this sets the fixed quantiser value.
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int rc_quality;
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// Encoding profile (VAProfile*).
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VAProfile va_profile;
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// Encoding entrypoint (VAEntryoint*).
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VAEntrypoint va_entrypoint;
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// Rate control mode.
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unsigned int va_rc_mode;
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// Bitrate for codec-specific encoder parameters.
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unsigned int va_bit_rate;
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// Packed headers which will actually be sent.
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unsigned int va_packed_headers;
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// Configuration attributes to use when creating va_config.
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VAConfigAttrib config_attributes[MAX_CONFIG_ATTRIBUTES];
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int nb_config_attributes;
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VAConfigID va_config;
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VAContextID va_context;
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AVVAAPIDeviceContext *hwctx;
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// Pool of (reusable) bitstream output buffers.
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struct FFRefStructPool *output_buffer_pool;
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// Global parameters which will be applied at the start of the
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// sequence (includes rate control parameters below).
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int global_params_type[MAX_GLOBAL_PARAMS];
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const void *global_params [MAX_GLOBAL_PARAMS];
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size_t global_params_size[MAX_GLOBAL_PARAMS];
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int nb_global_params;
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// Rate control parameters.
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VAEncMiscParameterRateControl rc_params;
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VAEncMiscParameterHRD hrd_params;
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VAEncMiscParameterFrameRate fr_params;
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VAEncMiscParameterBufferMaxFrameSize mfs_params;
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#if VA_CHECK_VERSION(0, 36, 0)
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VAEncMiscParameterBufferQualityLevel quality_params;
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#endif
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// Per-sequence parameter structure (VAEncSequenceParameterBuffer*).
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void *codec_sequence_params;
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// Per-sequence parameters found in the per-picture parameter
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// structure (VAEncPictureParameterBuffer*).
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void *codec_picture_params;
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// Slice structure.
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int slice_block_rows;
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int slice_block_cols;
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int nb_slices;
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int slice_size;
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// Tile encoding.
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int tile_cols;
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int tile_rows;
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// Tile width of the i-th column.
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int col_width[MAX_TILE_COLS];
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// Tile height of i-th row.
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int row_height[MAX_TILE_ROWS];
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// Location of the i-th tile column boundary.
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int col_bd[MAX_TILE_COLS + 1];
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// Location of the i-th tile row boundary.
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int row_bd[MAX_TILE_ROWS + 1];
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// Maximum number of regions supported by the driver.
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int roi_max_regions;
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// Quantisation range for offset calculations. Set by codec-specific
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// code, as it may change based on parameters.
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int roi_quant_range;
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/** Head data for current output pkt, used only for AV1. */
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//void *header_data;
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//size_t header_data_size;
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/**
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* Buffered coded data of a pic if it is an non-independent frame.
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* This is a RefStruct reference.
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*/
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VABufferID *coded_buffer_ref;
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} VAAPIEncodeContext;
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typedef struct VAAPIEncodeType {
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// List of supported profiles and corresponding VAAPI profiles.
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// (Must end with AV_PROFILE_UNKNOWN.)
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const VAAPIEncodeProfile *profiles;
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// Codec feature flags.
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int flags;
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// Default quality for this codec - used as quantiser or RC quality
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// factor depending on RC mode.
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int default_quality;
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// Determine encode parameters like block sizes for surface alignment
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// and slices. This may need to query the profile and entrypoint,
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// which will be available when this function is called. If not set,
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// assume that all blocks are 16x16 and that surfaces should be
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// aligned to match this.
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int (*get_encoder_caps)(AVCodecContext *avctx);
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// Perform any extra codec-specific configuration after the
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// codec context is initialised (set up the private data and
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// add any necessary global parameters).
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int (*configure)(AVCodecContext *avctx);
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// The size of any private data structure associated with each
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// picture (can be zero if not required).
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size_t picture_priv_data_size;
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// The size of the parameter structures:
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// sizeof(VAEnc{type}ParameterBuffer{codec}).
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size_t sequence_params_size;
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size_t picture_params_size;
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size_t slice_params_size;
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// Fill the parameter structures.
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int (*init_sequence_params)(AVCodecContext *avctx);
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int (*init_picture_params)(AVCodecContext *avctx,
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VAAPIEncodePicture *pic);
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int (*init_slice_params)(AVCodecContext *avctx,
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VAAPIEncodePicture *pic,
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VAAPIEncodeSlice *slice);
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// The type used by the packed header: this should look like
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// VAEncPackedHeader{something}.
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int sequence_header_type;
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int picture_header_type;
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int slice_header_type;
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// Write the packed header data to the provided buffer.
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// The sequence header is also used to fill the codec extradata
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// when the encoder is starting.
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int (*write_sequence_header)(AVCodecContext *avctx,
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char *data, size_t *data_len);
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int (*write_picture_header)(AVCodecContext *avctx,
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VAAPIEncodePicture *pic,
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char *data, size_t *data_len);
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int (*write_slice_header)(AVCodecContext *avctx,
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VAAPIEncodePicture *pic,
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VAAPIEncodeSlice *slice,
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char *data, size_t *data_len);
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// Fill an extra parameter structure, which will then be
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// passed to vaRenderPicture(). Will be called repeatedly
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// with increasing index argument until AVERROR_EOF is
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// returned.
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int (*write_extra_buffer)(AVCodecContext *avctx,
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VAAPIEncodePicture *pic,
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int index, int *type,
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char *data, size_t *data_len);
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// Write an extra packed header. Will be called repeatedly
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// with increasing index argument until AVERROR_EOF is
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// returned.
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int (*write_extra_header)(AVCodecContext *avctx,
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VAAPIEncodePicture *pic,
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int index, int *type,
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char *data, size_t *data_len);
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} VAAPIEncodeType;
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int ff_vaapi_encode_receive_packet(AVCodecContext *avctx, AVPacket *pkt);
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int ff_vaapi_encode_init(AVCodecContext *avctx);
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int ff_vaapi_encode_close(AVCodecContext *avctx);
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#define VAAPI_ENCODE_COMMON_OPTIONS \
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{ "low_power", \
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"Use low-power encoding mode (only available on some platforms; " \
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"may not support all encoding features)", \
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OFFSET(common.low_power), AV_OPT_TYPE_BOOL, \
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{ .i64 = 0 }, 0, 1, FLAGS }, \
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{ "max_frame_size", \
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"Maximum frame size (in bytes)",\
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OFFSET(common.max_frame_size), AV_OPT_TYPE_INT, \
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{ .i64 = 0 }, 0, INT_MAX, FLAGS }
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#define VAAPI_ENCODE_RC_MODE(name, desc) \
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{ #name, desc, 0, AV_OPT_TYPE_CONST, { .i64 = RC_MODE_ ## name }, \
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0, 0, FLAGS, .unit = "rc_mode" }
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#define VAAPI_ENCODE_RC_OPTIONS \
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{ "rc_mode",\
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"Set rate control mode", \
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OFFSET(common.explicit_rc_mode), AV_OPT_TYPE_INT, \
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{ .i64 = RC_MODE_AUTO }, RC_MODE_AUTO, RC_MODE_MAX, FLAGS, .unit = "rc_mode" }, \
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{ "auto", "Choose mode automatically based on other parameters", \
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0, AV_OPT_TYPE_CONST, { .i64 = RC_MODE_AUTO }, 0, 0, FLAGS, .unit = "rc_mode" }, \
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VAAPI_ENCODE_RC_MODE(CQP, "Constant-quality"), \
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VAAPI_ENCODE_RC_MODE(CBR, "Constant-bitrate"), \
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VAAPI_ENCODE_RC_MODE(VBR, "Variable-bitrate"), \
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VAAPI_ENCODE_RC_MODE(ICQ, "Intelligent constant-quality"), \
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VAAPI_ENCODE_RC_MODE(QVBR, "Quality-defined variable-bitrate"), \
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VAAPI_ENCODE_RC_MODE(AVBR, "Average variable-bitrate"), \
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{ "blbrc", \
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"Block level based bitrate control",\
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OFFSET(common.blbrc), AV_OPT_TYPE_BOOL, \
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{ .i64 = 0 }, 0, 1, FLAGS }
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#endif /* AVCODEC_VAAPI_ENCODE_H */
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