2 * Copyright (c) 2010 The WebM project authors. All Rights Reserved.
4 * Use of this source code is governed by a BSD-style license
5 * that can be found in the LICENSE file in the root of the source
6 * tree. An additional intellectual property rights grant can be found
7 * in the file PATENTS. All contributing project authors may
8 * be found in the AUTHORS file in the root of the source tree.
20 #include "vpx_config.h"
21 #include "vpx/internal/vpx_codec_internal.h"
22 #include "vpx/vp8cx.h"
23 #include "vpx/vpx_encoder.h"
24 #include "vpx_scale/yv12config.h"
29 /* Create/destroy static data structures. */
50 USAGE_STREAM_FROM_SERVER = 0x0,
51 USAGE_LOCAL_FILE_PLAYBACK = 0x1,
52 USAGE_CONSTRAINED_QUALITY = 0x2
59 MODE_GOODQUALITY = 0x1,
60 MODE_BESTQUALITY = 0x2,
62 MODE_SECONDPASS = 0x4,
63 MODE_SECONDPASS_BEST = 0x5
69 FRAMEFLAGS_GOLDEN = 2,
75 static void Scale2Ratio(int mode, int *hr, int *hs)
105 int Version; // 4 versions of bitstream defined 0 best quality/slowest decode, 3 lowest quality/fastest decode
106 int Width; // width of data passed to the compressor
107 int Height; // height of data passed to the compressor
108 struct vpx_rational timebase;
109 int target_bandwidth; // bandwidth to be used in kilobits per second
111 int noise_sensitivity; // parameter used for applying pre processing blur: recommendation 0
112 int Sharpness; // parameter used for sharpening output: recommendation 0:
114 unsigned int rc_max_intra_bitrate_pct;
117 //(0)=Realtime/Live Encoding. This mode is optimized for realtim encoding (for example, capturing
118 // a television signal or feed from a live camera). ( speed setting controls how fast )
119 //(1)=Good Quality Fast Encoding. The encoder balances quality with the amount of time it takes to
120 // encode the output. ( speed setting controls how fast )
121 //(2)=One Pass - Best Quality. The encoder places priority on the quality of the output over encoding
122 // speed. The output is compressed at the highest possible quality. This option takes the longest
123 // amount of time to encode. ( speed setting ignored )
124 //(3)=Two Pass - First Pass. The encoder generates a file of statistics for use in the second encoding
125 // pass. ( speed setting controls how fast )
126 //(4)=Two Pass - Second Pass. The encoder uses the statistics that were generated in the first encoding
127 // pass to create the compressed output. ( speed setting controls how fast )
128 //(5)=Two Pass - Second Pass Best. The encoder uses the statistics that were generated in the first
129 // encoding pass to create the compressed output using the highest possible quality, and taking a
130 // longer amount of time to encode.. ( speed setting ignored )
133 // Key Framing Operations
134 int auto_key; // automatically detect cut scenes and set the keyframes
135 int key_freq; // maximum distance to key frame.
137 int allow_lag; // allow lagged compression (if 0 lagin frames is ignored)
138 int lag_in_frames; // how many frames lag before we start encoding
140 //----------------------------------------------------------------
141 // DATARATE CONTROL OPTIONS
143 int end_usage; // vbr or cbr
145 // buffer targeting aggressiveness
149 // buffering parameters
150 int64_t starting_buffer_level; // in bytes
151 int64_t optimal_buffer_level;
152 int64_t maximum_buffer_size;
154 int64_t starting_buffer_level_in_ms; // in milli-seconds
155 int64_t optimal_buffer_level_in_ms;
156 int64_t maximum_buffer_size_in_ms;
158 // controlling quality
164 // allow internal resizing ( currently disabled in the build !!!!!)
165 int allow_spatial_resampling;
166 int resample_down_water_mark;
167 int resample_up_water_mark;
169 // allow internal frame rate alterations
171 int drop_frames_water_mark;
173 // two pass datarate control
174 int two_pass_vbrbias; // two pass datarate control tweaks
175 int two_pass_vbrmin_section;
176 int two_pass_vbrmax_section;
177 // END DATARATE CONTROL OPTIONS
178 //----------------------------------------------------------------
181 // these parameters aren't to be used in final build don't use!!!
189 int multi_threaded; // how many threads to run the encoder on
190 int token_partitions; // how many token partitions to create for multi core decoding
191 int encode_breakout; // early breakout encode threshold : for video conf recommend 800
193 unsigned int error_resilient_mode; // Bitfield defining the error
194 // resiliency features to enable. Can provide
195 // decodable frames after losses in previous
196 // frames and decodable partitions after
197 // losses in the same frame.
203 struct vpx_fixed_buf two_pass_stats_in;
204 struct vpx_codec_pkt_list *output_pkt_list;
208 // Temporal scaling parameters
209 unsigned int number_of_layers;
210 unsigned int target_bitrate[VPX_TS_MAX_PERIODICITY];
211 unsigned int rate_decimator[VPX_TS_MAX_PERIODICITY];
212 unsigned int periodicity;
213 unsigned int layer_id[VPX_TS_MAX_PERIODICITY];
215 #if CONFIG_MULTI_RES_ENCODING
216 /* Number of total resolutions encoded */
217 unsigned int mr_total_resolutions;
219 /* Current encoder ID */
220 unsigned int mr_encoder_id;
222 /* Down-sampling factor */
223 vpx_rational_t mr_down_sampling_factor;
225 /* Memory location to store low-resolution encoder's mode info */
226 void* mr_low_res_mode_info;
231 void vp8_initialize();
233 struct VP8_COMP* vp8_create_compressor(VP8_CONFIG *oxcf);
234 void vp8_remove_compressor(struct VP8_COMP* *comp);
236 void vp8_init_config(struct VP8_COMP* onyx, VP8_CONFIG *oxcf);
237 void vp8_change_config(struct VP8_COMP* onyx, VP8_CONFIG *oxcf);
239 // receive a frames worth of data caller can assume that a copy of this frame is made
240 // and not just a copy of the pointer..
241 int vp8_receive_raw_frame(struct VP8_COMP* comp, unsigned int frame_flags, YV12_BUFFER_CONFIG *sd, int64_t time_stamp, int64_t end_time_stamp);
242 int vp8_get_compressed_data(struct VP8_COMP* comp, unsigned int *frame_flags, unsigned long *size, unsigned char *dest, unsigned char *dest_end, int64_t *time_stamp, int64_t *time_end, int flush);
243 int vp8_get_preview_raw_frame(struct VP8_COMP* comp, YV12_BUFFER_CONFIG *dest, vp8_ppflags_t *flags);
245 int vp8_use_as_reference(struct VP8_COMP* comp, int ref_frame_flags);
246 int vp8_update_reference(struct VP8_COMP* comp, int ref_frame_flags);
247 int vp8_get_reference(struct VP8_COMP* comp, VP8_REFFRAME ref_frame_flag, YV12_BUFFER_CONFIG *sd);
248 int vp8_set_reference(struct VP8_COMP* comp, VP8_REFFRAME ref_frame_flag, YV12_BUFFER_CONFIG *sd);
249 int vp8_update_entropy(struct VP8_COMP* comp, int update);
250 int vp8_set_roimap(struct VP8_COMP* comp, unsigned char *map, unsigned int rows, unsigned int cols, int delta_q[4], int delta_lf[4], unsigned int threshold[4]);
251 int vp8_set_active_map(struct VP8_COMP* comp, unsigned char *map, unsigned int rows, unsigned int cols);
252 int vp8_set_internal_size(struct VP8_COMP* comp, VPX_SCALING horiz_mode, VPX_SCALING vert_mode);
253 int vp8_get_quantizer(struct VP8_COMP* c);