/* * Copyright (c) 2010 The WebM project authors. All Rights Reserved. * * Use of this source code is governed by a BSD-style license * that can be found in the LICENSE file in the root of the source * tree. An additional intellectual property rights grant can be found * in the file PATENTS. All contributing project authors may * be found in the AUTHORS file in the root of the source tree.
*/
#include <assert.h> staticINLINEvoid Scale2Ratio(int mode, int *hr, int *hs) { switch (mode) { case VP8E_NORMAL:
*hr = 1;
*hs = 1; break; case VP8E_FOURFIVE:
*hr = 4;
*hs = 5; break; case VP8E_THREEFIVE:
*hr = 3;
*hs = 5; break; case VP8E_ONETWO:
*hr = 1;
*hs = 2; break; default:
*hr = 1;
*hs = 1;
assert(0); break;
}
}
typedefstruct { /* 4 versions of bitstream defined: * 0 best quality/slowest decode, 3 lowest quality/fastest decode
*/ int Version; int Width; int Height; struct vpx_rational timebase; /* In either kilobits per second or bits per second, depending on which * copy of oxcf this is in. * - ctx->oxcf.target_bandwidth is in kilobits per second. See * set_vp8e_config(). * - ctx->cpi->oxcf.target_bandwidth in is bits per second. See * vp8_change_config().
*/ unsignedint target_bandwidth;
/* Parameter used for applying denoiser. * For temporal denoiser: noise_sensitivity = 0 means off, * noise_sensitivity = 1 means temporal denoiser on for Y channel only, * noise_sensitivity = 2 means temporal denoiser on for all channels. * noise_sensitivity = 3 means aggressive denoising mode. * noise_sensitivity >= 4 means adaptive denoising mode. * Temporal denoiser is enabled via the configuration option: * CONFIG_TEMPORAL_DENOISING. * For spatial denoiser: noise_sensitivity controls the amount of * pre-processing blur: noise_sensitivity = 0 means off. * Spatial denoiser invoked under !CONFIG_TEMPORAL_DENOISING.
*/ int noise_sensitivity;
/* parameter used for sharpening output: recommendation 0: */ int Sharpness; int cpu_used; unsignedint rc_max_intra_bitrate_pct; /* percent of rate boost for golden frame in CBR mode. */ unsignedint gf_cbr_boost_pct; unsignedint screen_content_mode;
/* mode -> *(0)=Realtime/Live Encoding. This mode is optimized for realtim * encoding (for example, capturing a television signal or feed * from a live camera). ( speed setting controls how fast ) *(1)=Good Quality Fast Encoding. The encoder balances quality with * the amount of time it takes to encode the output. ( speed * setting controls how fast ) *(2)=One Pass - Best Quality. The encoder places priority on the * quality of the output over encoding speed. The output is * compressed at the highest possible quality. This option takes * the longest amount of time to encode. ( speed setting ignored * ) *(3)=Two Pass - First Pass. The encoder generates a file of * statistics for use in the second encoding pass. ( speed * setting controls how fast ) *(4)=Two Pass - Second Pass. The encoder uses the statistics that * were generated in the first encoding pass to create the * compressed output. ( speed setting controls how fast ) *(5)=Two Pass - Second Pass Best. The encoder uses the statistics * that were generated in the first encoding pass to create the * compressed output using the highest possible quality, and * taking a longer amount of time to encode.. ( speed setting * ignored )
*/ int Mode;
/* Key Framing Operations */ int auto_key; /* automatically detect cut scenes */ int key_freq; /* maximum distance to key frame. */
/* lagged compression (if allow_lag == 0 lag_in_frames is ignored) */ int allow_lag; int lag_in_frames; /* how many frames lag before we start encoding */
/* * DATARATE CONTROL OPTIONS
*/
int end_usage; /* vbr or cbr */
/* buffer targeting aggressiveness */ int under_shoot_pct; int over_shoot_pct;
/* controlling quality */ int fixed_q; int worst_allowed_q; int best_allowed_q; int cq_level;
/* allow internal resizing */ int allow_spatial_resampling; int resample_down_water_mark; int resample_up_water_mark;
/* allow internal frame rate alterations */ int allow_df; int drop_frames_water_mark;
/* two pass datarate control */ int two_pass_vbrbias; int two_pass_vbrmin_section; int two_pass_vbrmax_section;
/* * END DATARATE CONTROL OPTIONS
*/
/* these parameters aren't to be used in final build don't use!!! */ int play_alternate; int alt_freq; int alt_q; int key_q; int gold_q;
int multi_threaded; /* how many threads to run the encoder on */ int token_partitions; /* how many token partitions to create */
/* early breakout threshold: for video conf recommend 800 */ int encode_breakout;
/* Bitfield defining the error resiliency features to enable. * Can provide decodable frames after losses in previous * frames and decodable partitions after losses in the same frame.
*/ unsignedint error_resilient_mode;
int arnr_max_frames; int arnr_strength; int arnr_type;
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