2016-03-23 23:49:02 +00:00
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/*
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* This file is part of Libav.
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*
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* Libav 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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* Libav 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 Libav; 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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#include "libavutil/hwcontext.h"
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#include "libavutil/hwcontext_vaapi.h"
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#include "avcodec.h"
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struct VAAPIEncodeType;
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struct VAAPIEncodePicture;
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enum {
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2016-04-12 22:13:31 +00:00
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MAX_CONFIG_ATTRIBUTES = 4,
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MAX_GLOBAL_PARAMS = 4,
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2016-03-23 23:49:02 +00:00
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MAX_PICTURE_REFERENCES = 2,
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MAX_PICTURE_SLICES = 1,
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MAX_PARAM_BUFFERS = 16,
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MAX_REORDER_DELAY = 16,
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MAX_PARAM_BUFFER_SIZE = 1024,
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MAX_OUTPUT_BUFFER_SIZE = 1024 * 1024,
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};
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enum {
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PICTURE_TYPE_IDR = 0,
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PICTURE_TYPE_I = 1,
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PICTURE_TYPE_P = 2,
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PICTURE_TYPE_B = 3,
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};
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enum {
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// All encode operations are done independently.
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ISSUE_MODE_SERIALISE_EVERYTHING = 0,
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// Overlap as many operations as possible.
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ISSUE_MODE_MAXIMISE_THROUGHPUT,
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// Overlap operations only when satisfying parallel dependencies.
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ISSUE_MODE_MINIMISE_LATENCY,
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};
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typedef struct VAAPIEncodeSlice {
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void *priv_data;
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void *codec_slice_params;
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} VAAPIEncodeSlice;
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typedef struct VAAPIEncodePicture {
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struct VAAPIEncodePicture *next;
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int64_t display_order;
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int64_t encode_order;
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int64_t pts;
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int type;
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int input_available;
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int encode_issued;
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int encode_complete;
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AVFrame *input_image;
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VASurfaceID input_surface;
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AVFrame *recon_image;
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VASurfaceID recon_surface;
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int nb_param_buffers;
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VABufferID param_buffers[MAX_PARAM_BUFFERS];
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VABufferID output_buffer;
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void *priv_data;
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void *codec_picture_params;
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int nb_refs;
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struct VAAPIEncodePicture *refs[MAX_PICTURE_REFERENCES];
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int nb_slices;
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VAAPIEncodeSlice *slices[MAX_PICTURE_SLICES];
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} VAAPIEncodePicture;
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typedef struct VAAPIEncodeContext {
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const AVClass *class;
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// Codec-specific hooks.
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const struct VAAPIEncodeType *codec;
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// Codec-specific state.
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void *priv_data;
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VAProfile va_profile;
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VAEntrypoint va_entrypoint;
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VAConfigID va_config;
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VAContextID va_context;
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int va_rc_mode;
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AVBufferRef *device_ref;
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AVHWDeviceContext *device;
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AVVAAPIDeviceContext *hwctx;
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AVBufferRef *input_frames_ref;
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AVHWFramesContext *input_frames;
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// Input size, set from input frames.
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int input_width;
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int input_height;
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// Aligned size, set by codec init, becomes hwframe size.
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int aligned_width;
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int aligned_height;
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int nb_recon_frames;
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AVBufferRef *recon_frames_ref;
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AVHWFramesContext *recon_frames;
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2016-04-12 22:13:31 +00:00
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VAConfigAttrib config_attributes[MAX_CONFIG_ATTRIBUTES];
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int nb_config_attributes;
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2016-04-12 22:13:31 +00:00
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VAEncMiscParameterBuffer *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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2016-03-23 23:49:02 +00:00
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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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2016-04-12 22:13:31 +00:00
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void *codec_picture_params;
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2016-03-23 23:49:02 +00:00
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// Current encoding window, in display (input) order.
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VAAPIEncodePicture *pic_start, *pic_end;
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// Next input order index (display order).
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int64_t input_order;
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// Number of frames that output is behind input.
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int64_t output_delay;
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// Number of frames decode output will need to be delayed.
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int64_t decode_delay;
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// Next output order index (encode order).
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int64_t output_order;
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int issue_mode;
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// Timestamp handling.
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int64_t first_pts;
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int64_t dts_pts_diff;
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int64_t ts_ring[MAX_REORDER_DELAY * 3];
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// Frame type decision.
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int i_per_idr;
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int p_per_i;
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int b_per_p;
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int idr_counter;
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int i_counter;
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int p_counter;
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int end_of_stream;
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} VAAPIEncodeContext;
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typedef struct VAAPIEncodeType {
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size_t priv_data_size;
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int (*init)(AVCodecContext *avctx);
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int (*close)(AVCodecContext *avctx);
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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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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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int sequence_header_type;
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int picture_header_type;
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int slice_header_type;
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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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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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} VAAPIEncodeType;
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int ff_vaapi_encode2(AVCodecContext *avctx, AVPacket *pkt,
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const AVFrame *input_image, int *got_packet);
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int ff_vaapi_encode_init(AVCodecContext *avctx,
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const VAAPIEncodeType *type);
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int ff_vaapi_encode_close(AVCodecContext *avctx);
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#endif /* AVCODEC_VAAPI_ENCODE_H */
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