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author | Dmitry Kovalev <dkovalev@google.com> | 2013-12-20 11:10:24 -0800 |
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committer | Dmitry Kovalev <dkovalev@google.com> | 2013-12-20 11:10:24 -0800 |
commit | 4084566554452537e008e6b1065084e7402e50c1 (patch) | |
tree | eb2e13209420701dd1fc5caa6ce6af73306d5a53 /vp9/encoder/vp9_writer.c | |
parent | c67ee5ea24e6c4549c9929ef0e9cb3838a851fcf (diff) | |
download | libvpx-4084566554452537e008e6b1065084e7402e50c1.tar libvpx-4084566554452537e008e6b1065084e7402e50c1.tar.gz libvpx-4084566554452537e008e6b1065084e7402e50c1.tar.bz2 libvpx-4084566554452537e008e6b1065084e7402e50c1.zip |
Renaming vp9_boolcoder.{h, c} to vp9_writer.{h, c}.
Change-Id: I9b9a5fcce8530284df0f270706ee060a0edc1517
Diffstat (limited to 'vp9/encoder/vp9_writer.c')
-rw-r--r-- | vp9/encoder/vp9_writer.c | 68 |
1 files changed, 68 insertions, 0 deletions
diff --git a/vp9/encoder/vp9_writer.c b/vp9/encoder/vp9_writer.c new file mode 100644 index 000000000..3d13d07b6 --- /dev/null +++ b/vp9/encoder/vp9_writer.c @@ -0,0 +1,68 @@ +/* + * 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> +#include "vp9/encoder/vp9_writer.h" +#include "vp9/common/vp9_entropy.h" + +#if defined(SECTIONBITS_OUTPUT) +unsigned __int64 Sectionbits[500]; + +#endif + +#ifdef ENTROPY_STATS +unsigned int active_section = 0; +#endif + +const unsigned int vp9_prob_cost[256] = { + 2047, 2047, 1791, 1641, 1535, 1452, 1385, 1328, 1279, 1235, 1196, 1161, + 1129, 1099, 1072, 1046, 1023, 1000, 979, 959, 940, 922, 905, 889, + 873, 858, 843, 829, 816, 803, 790, 778, 767, 755, 744, 733, + 723, 713, 703, 693, 684, 675, 666, 657, 649, 641, 633, 625, + 617, 609, 602, 594, 587, 580, 573, 567, 560, 553, 547, 541, + 534, 528, 522, 516, 511, 505, 499, 494, 488, 483, 477, 472, + 467, 462, 457, 452, 447, 442, 437, 433, 428, 424, 419, 415, + 410, 406, 401, 397, 393, 389, 385, 381, 377, 373, 369, 365, + 361, 357, 353, 349, 346, 342, 338, 335, 331, 328, 324, 321, + 317, 314, 311, 307, 304, 301, 297, 294, 291, 288, 285, 281, + 278, 275, 272, 269, 266, 263, 260, 257, 255, 252, 249, 246, + 243, 240, 238, 235, 232, 229, 227, 224, 221, 219, 216, 214, + 211, 208, 206, 203, 201, 198, 196, 194, 191, 189, 186, 184, + 181, 179, 177, 174, 172, 170, 168, 165, 163, 161, 159, 156, + 154, 152, 150, 148, 145, 143, 141, 139, 137, 135, 133, 131, + 129, 127, 125, 123, 121, 119, 117, 115, 113, 111, 109, 107, + 105, 103, 101, 99, 97, 95, 93, 92, 90, 88, 86, 84, + 82, 81, 79, 77, 75, 73, 72, 70, 68, 66, 65, 63, + 61, 60, 58, 56, 55, 53, 51, 50, 48, 46, 45, 43, + 41, 40, 38, 37, 35, 33, 32, 30, 29, 27, 25, 24, + 22, 21, 19, 18, 16, 15, 13, 12, 10, 9, 7, 6, + 4, 3, 1, 1}; + +void vp9_start_encode(vp9_writer *br, uint8_t *source) { + br->lowvalue = 0; + br->range = 255; + br->value = 0; + br->count = -24; + br->buffer = source; + br->pos = 0; + vp9_write_bit(br, 0); +} + +void vp9_stop_encode(vp9_writer *br) { + int i; + + for (i = 0; i < 32; i++) + vp9_write_bit(br, 0); + + // Ensure there's no ambigous collision with any index marker bytes + if ((br->buffer[br->pos - 1] & 0xe0) == 0xc0) + br->buffer[br->pos++] = 0; +} + |