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19 #ifndef AVCODEC_VAAPI_ENCODE_H
20 #define AVCODEC_VAAPI_ENCODE_H
26 #include "libavutil/hwcontext.h"
27 #include "libavutil/hwcontext_vaapi.h"
31 struct VAAPIEncodeType;
32 struct VAAPIEncodePicture;
35 MAX_CONFIG_ATTRIBUTES = 4,
36 MAX_GLOBAL_PARAMS = 4,
37 MAX_PICTURE_REFERENCES = 2,
38 MAX_PICTURE_SLICES = 112,
39 MAX_PARAM_BUFFERS = 128,
40 MAX_REORDER_DELAY = 16,
41 MAX_PARAM_BUFFER_SIZE = 1024,
51 typedef struct VAAPIEncodeSlice {
54 void *codec_slice_params;
57 typedef struct VAAPIEncodePicture {
58 struct VAAPIEncodePicture *next;
60 int64_t display_order;
70 VASurfaceID input_surface;
73 VASurfaceID recon_surface;
76 VABufferID param_buffers[MAX_PARAM_BUFFERS];
78 AVBufferRef *output_buffer_ref;
79 VABufferID output_buffer;
82 void *codec_picture_params;
85 struct VAAPIEncodePicture *refs[MAX_PICTURE_REFERENCES];
88 VAAPIEncodeSlice *slices[MAX_PICTURE_SLICES];
91 typedef struct VAAPIEncodeContext {
94 // Codec-specific hooks.
95 const struct VAAPIEncodeType *codec;
97 // Encoding profile (VAProfileXXX).
99 // Encoding entrypoint (usually VAEntryointEncSlice).
100 VAEntrypoint va_entrypoint;
101 // Surface colour/sampling format (usually VA_RT_FORMAT_YUV420).
102 unsigned int va_rt_format;
103 // Rate control mode.
104 unsigned int va_rc_mode;
105 // Supported packed headers (initially the desired set, modified
106 // later to what is actually supported).
107 unsigned int va_packed_headers;
109 // The required size of surfaces. This is probably the input
110 // size (AVCodecContext.width|height) aligned up to whatever
111 // block size is required by the codec.
115 // Everything above this point must be set before calling
116 // ff_vaapi_encode_init().
118 // Codec-specific state.
121 // Configuration attributes to use when creating va_config.
122 VAConfigAttrib config_attributes[MAX_CONFIG_ATTRIBUTES];
123 int nb_config_attributes;
125 VAConfigID va_config;
126 VAContextID va_context;
128 AVBufferRef *device_ref;
129 AVHWDeviceContext *device;
130 AVVAAPIDeviceContext *hwctx;
132 // The hardware frame context containing the input frames.
133 AVBufferRef *input_frames_ref;
134 AVHWFramesContext *input_frames;
136 // The hardware frame context containing the reconstructed frames.
137 AVBufferRef *recon_frames_ref;
138 AVHWFramesContext *recon_frames;
140 // Pool of (reusable) bitstream output buffers.
141 AVBufferPool *output_buffer_pool;
143 // Global parameters which will be applied at the start of the
144 // sequence (includes rate control parameters below).
145 VAEncMiscParameterBuffer *global_params[MAX_GLOBAL_PARAMS];
146 size_t global_params_size[MAX_GLOBAL_PARAMS];
147 int nb_global_params;
149 // Rate control parameters.
151 VAEncMiscParameterBuffer misc;
152 VAEncMiscParameterRateControl rc;
155 VAEncMiscParameterBuffer misc;
156 VAEncMiscParameterHRD hrd;
159 VAEncMiscParameterBuffer misc;
160 VAEncMiscParameterFrameRate fr;
163 // Per-sequence parameter structure (VAEncSequenceParameterBuffer*).
164 void *codec_sequence_params;
166 // Per-sequence parameters found in the per-picture parameter
167 // structure (VAEncPictureParameterBuffer*).
168 void *codec_picture_params;
170 // Current encoding window, in display (input) order.
171 VAAPIEncodePicture *pic_start, *pic_end;
173 // Next input order index (display order).
175 // Number of frames that output is behind input.
176 int64_t output_delay;
177 // Number of frames decode output will need to be delayed.
178 int64_t decode_delay;
179 // Next output order index (encode order).
180 int64_t output_order;
183 // All encode operations are done independently (synchronise
184 // immediately after every operation).
185 ISSUE_MODE_SERIALISE_EVERYTHING = 0,
186 // Overlap as many operations as possible.
187 ISSUE_MODE_MAXIMISE_THROUGHPUT,
188 // Overlap operations only when satisfying parallel dependencies.
189 ISSUE_MODE_MINIMISE_LATENCY,
192 // Timestamp handling.
194 int64_t dts_pts_diff;
195 int64_t ts_ring[MAX_REORDER_DELAY * 3];
197 // Frame type decision.
205 // Codec-local options are allocated to follow this structure in
206 // memory (in the AVCodec definition, set priv_data_size to
207 // sizeof(VAAPIEncodeContext) + sizeof(VAAPIEncodeFooOptions)).
209 char codec_options_data[0];
210 } VAAPIEncodeContext;
213 typedef struct VAAPIEncodeType {
214 size_t priv_data_size;
216 // Perform any extra codec-specific configuration after the
217 // codec context is initialised (set up the private data and
218 // add any necessary global parameters).
219 int (*configure)(AVCodecContext *avctx);
221 // The size of the parameter structures:
222 // sizeof(VAEnc{type}ParameterBuffer{codec}).
223 size_t sequence_params_size;
224 size_t picture_params_size;
225 size_t slice_params_size;
227 // Fill the parameter structures.
228 int (*init_sequence_params)(AVCodecContext *avctx);
229 int (*init_picture_params)(AVCodecContext *avctx,
230 VAAPIEncodePicture *pic);
231 int (*init_slice_params)(AVCodecContext *avctx,
232 VAAPIEncodePicture *pic,
233 VAAPIEncodeSlice *slice);
235 // The type used by the packed header: this should look like
236 // VAEncPackedHeader{something}.
237 int sequence_header_type;
238 int picture_header_type;
239 int slice_header_type;
241 // Write the packed header data to the provided buffer.
242 // The sequence header is also used to fill the codec extradata
243 // when the encoder is starting.
244 int (*write_sequence_header)(AVCodecContext *avctx,
245 char *data, size_t *data_len);
246 int (*write_picture_header)(AVCodecContext *avctx,
247 VAAPIEncodePicture *pic,
248 char *data, size_t *data_len);
249 int (*write_slice_header)(AVCodecContext *avctx,
250 VAAPIEncodePicture *pic,
251 VAAPIEncodeSlice *slice,
252 char *data, size_t *data_len);
254 // Fill an extra parameter structure, which will then be
255 // passed to vaRenderPicture(). Will be called repeatedly
256 // with increasing index argument until AVERROR_EOF is
258 int (*write_extra_buffer)(AVCodecContext *avctx,
259 VAAPIEncodePicture *pic,
260 int index, int *type,
261 char *data, size_t *data_len);
263 // Write an extra packed header. Will be called repeatedly
264 // with increasing index argument until AVERROR_EOF is
266 int (*write_extra_header)(AVCodecContext *avctx,
267 VAAPIEncodePicture *pic,
268 int index, int *type,
269 char *data, size_t *data_len);
273 int ff_vaapi_encode2(AVCodecContext *avctx, AVPacket *pkt,
274 const AVFrame *input_image, int *got_packet);
276 int ff_vaapi_encode_init(AVCodecContext *avctx);
277 int ff_vaapi_encode_close(AVCodecContext *avctx);
279 #endif /* AVCODEC_VAAPI_ENCODE_H */