From dea5e5bb48ace08c56503bede194cb731ca4ecb9 Mon Sep 17 00:00:00 2001 From: winlin Date: Sat, 21 Jul 2018 19:09:32 +0800 Subject: [PATCH] Add utest or CRC32 IEEE, refine TABs of code --- trunk/src/kernel/srs_kernel_utility.cpp | 1176 +++++++++++------------ trunk/src/utest/srs_utest_kernel.cpp | 19 + 2 files changed, 607 insertions(+), 588 deletions(-) diff --git a/trunk/src/kernel/srs_kernel_utility.cpp b/trunk/src/kernel/srs_kernel_utility.cpp index 13bbc68aa..80bb062ca 100644 --- a/trunk/src/kernel/srs_kernel_utility.cpp +++ b/trunk/src/kernel/srs_kernel_utility.cpp @@ -108,6 +108,7 @@ int64_t srs_get_system_time_ms() return _srs_system_time_us_cache / 1000; } + int64_t srs_get_system_startup_time_ms() { if (_srs_system_time_startup_time <= 0) { @@ -116,6 +117,7 @@ int64_t srs_get_system_startup_time_ms() return _srs_system_time_startup_time / 1000; } + int64_t srs_update_system_time_ms() { timeval now; @@ -505,346 +507,346 @@ int srs_do_create_dir_recursively(string dir) mode_t mode = S_IRUSR|S_IWUSR|S_IXUSR|S_IRGRP|S_IWGRP|S_IXGRP|S_IROTH|S_IXOTH; if (::mkdir(dir.c_str(), mode) < 0) { #else - if (::mkdir(dir.c_str()) < 0) { + if (::mkdir(dir.c_str()) < 0) { #endif - if (errno == EEXIST) { - return ERROR_SYSTEM_DIR_EXISTS; - } - - ret = ERROR_SYSTEM_CREATE_DIR; - srs_error("create dir %s failed. ret=%d", dir.c_str(), ret); - return ret; + if (errno == EEXIST) { + return ERROR_SYSTEM_DIR_EXISTS; } - srs_info("create dir %s success.", dir.c_str()); + ret = ERROR_SYSTEM_CREATE_DIR; + srs_error("create dir %s failed. ret=%d", dir.c_str(), ret); return ret; } - bool srs_bytes_equals(void* pa, void* pb, int size) - { - uint8_t* a = (uint8_t*)pa; - uint8_t* b = (uint8_t*)pb; - - if (!a && !b) { - return true; - } - - if (!a || !b) { - return false; - } - - for(int i = 0; i < size; i++){ - if(a[i] != b[i]){ - return false; - } - } - + srs_info("create dir %s success.", dir.c_str()); + + return ret; +} + +bool srs_bytes_equals(void* pa, void* pb, int size) +{ + uint8_t* a = (uint8_t*)pa; + uint8_t* b = (uint8_t*)pb; + + if (!a && !b) { return true; } - srs_error_t srs_create_dir_recursively(string dir) - { - int ret = srs_do_create_dir_recursively(dir); - - if (ret == ERROR_SYSTEM_DIR_EXISTS || ret == ERROR_SUCCESS) { - return srs_success; - } - - return srs_error_new(ret, "create dir %s", dir.c_str()); - } - - bool srs_path_exists(std::string path) - { - struct stat st; - - // stat current dir, if exists, return error. - if (stat(path.c_str(), &st) == 0) { - return true; - } - + if (!a || !b) { return false; } - string srs_path_dirname(string path) - { - std::string dirname = path; - size_t pos = string::npos; - - if ((pos = dirname.rfind("/")) != string::npos) { - if (pos == 0) { - return "/"; - } - dirname = dirname.substr(0, pos); - } - - return dirname; - } - - string srs_path_basename(string path) - { - std::string dirname = path; - size_t pos = string::npos; - - if ((pos = dirname.rfind("/")) != string::npos) { - // the basename("/") is "/" - if (dirname.length() == 1) { - return dirname; - } - dirname = dirname.substr(pos + 1); - } - - return dirname; - } - - string srs_path_filename(string path) - { - std::string filename = path; - size_t pos = string::npos; - - if ((pos = filename.rfind(".")) != string::npos) { - return filename.substr(0, pos); - } - - return filename; - } - - string srs_path_filext(string path) - { - size_t pos = string::npos; - - if ((pos = path.rfind(".")) != string::npos) { - return path.substr(pos); - } - - return ""; - } - - bool srs_avc_startswith_annexb(SrsBuffer* stream, int* pnb_start_code) - { - char* bytes = stream->data() + stream->pos(); - char* p = bytes; - - for (;;) { - if (!stream->require((int)(p - bytes + 3))) { - return false; - } - - // not match - if (p[0] != (char)0x00 || p[1] != (char)0x00) { - return false; - } - - // match N[00] 00 00 01, where N>=0 - if (p[2] == (char)0x01) { - if (pnb_start_code) { - *pnb_start_code = (int)(p - bytes) + 3; - } - return true; - } - - p++; - } - - return false; - } - - bool srs_aac_startswith_adts(SrsBuffer* stream) - { - char* bytes = stream->data() + stream->pos(); - char* p = bytes; - - if (!stream->require((int)(p - bytes) + 2)) { + for(int i = 0; i < size; i++){ + if(a[i] != b[i]){ return false; } - - // matched 12bits 0xFFF, - // @remark, we must cast the 0xff to char to compare. - if (p[0] != (char)0xff || (char)(p[1] & 0xf0) != (char)0xf0) { - return false; - } - + } + + return true; +} + +srs_error_t srs_create_dir_recursively(string dir) +{ + int ret = srs_do_create_dir_recursively(dir); + + if (ret == ERROR_SYSTEM_DIR_EXISTS || ret == ERROR_SUCCESS) { + return srs_success; + } + + return srs_error_new(ret, "create dir %s", dir.c_str()); +} + +bool srs_path_exists(std::string path) +{ + struct stat st; + + // stat current dir, if exists, return error. + if (stat(path.c_str(), &st) == 0) { return true; } - // @see http://www.stmc.edu.hk/~vincent/ffmpeg_0.4.9-pre1/libavformat/mpegtsenc.c - unsigned int __mpegts_crc32(const uint8_t *data, int len) - { - /* - * MPEG2 transport stream (aka DVB) mux - * Copyright (c) 2003 Fabrice Bellard. - * - * This library is free software; you can redistribute it and/or - * modify it under the terms of the GNU Lesser General Public - * License as published by the Free Software Foundation; either - * version 2 of the License, or (at your option) any later version. - * - * This library is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * Lesser General Public License for more details. - * - * You should have received a copy of the GNU Lesser General Public - * License along with this library; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - */ - static const uint32_t table[256] = { - 0x00000000, 0x04c11db7, 0x09823b6e, 0x0d4326d9, 0x130476dc, 0x17c56b6b, - 0x1a864db2, 0x1e475005, 0x2608edb8, 0x22c9f00f, 0x2f8ad6d6, 0x2b4bcb61, - 0x350c9b64, 0x31cd86d3, 0x3c8ea00a, 0x384fbdbd, 0x4c11db70, 0x48d0c6c7, - 0x4593e01e, 0x4152fda9, 0x5f15adac, 0x5bd4b01b, 0x569796c2, 0x52568b75, - 0x6a1936c8, 0x6ed82b7f, 0x639b0da6, 0x675a1011, 0x791d4014, 0x7ddc5da3, - 0x709f7b7a, 0x745e66cd, 0x9823b6e0, 0x9ce2ab57, 0x91a18d8e, 0x95609039, - 0x8b27c03c, 0x8fe6dd8b, 0x82a5fb52, 0x8664e6e5, 0xbe2b5b58, 0xbaea46ef, - 0xb7a96036, 0xb3687d81, 0xad2f2d84, 0xa9ee3033, 0xa4ad16ea, 0xa06c0b5d, - 0xd4326d90, 0xd0f37027, 0xddb056fe, 0xd9714b49, 0xc7361b4c, 0xc3f706fb, - 0xceb42022, 0xca753d95, 0xf23a8028, 0xf6fb9d9f, 0xfbb8bb46, 0xff79a6f1, - 0xe13ef6f4, 0xe5ffeb43, 0xe8bccd9a, 0xec7dd02d, 0x34867077, 0x30476dc0, - 0x3d044b19, 0x39c556ae, 0x278206ab, 0x23431b1c, 0x2e003dc5, 0x2ac12072, - 0x128e9dcf, 0x164f8078, 0x1b0ca6a1, 0x1fcdbb16, 0x018aeb13, 0x054bf6a4, - 0x0808d07d, 0x0cc9cdca, 0x7897ab07, 0x7c56b6b0, 0x71159069, 0x75d48dde, - 0x6b93dddb, 0x6f52c06c, 0x6211e6b5, 0x66d0fb02, 0x5e9f46bf, 0x5a5e5b08, - 0x571d7dd1, 0x53dc6066, 0x4d9b3063, 0x495a2dd4, 0x44190b0d, 0x40d816ba, - 0xaca5c697, 0xa864db20, 0xa527fdf9, 0xa1e6e04e, 0xbfa1b04b, 0xbb60adfc, - 0xb6238b25, 0xb2e29692, 0x8aad2b2f, 0x8e6c3698, 0x832f1041, 0x87ee0df6, - 0x99a95df3, 0x9d684044, 0x902b669d, 0x94ea7b2a, 0xe0b41de7, 0xe4750050, - 0xe9362689, 0xedf73b3e, 0xf3b06b3b, 0xf771768c, 0xfa325055, 0xfef34de2, - 0xc6bcf05f, 0xc27dede8, 0xcf3ecb31, 0xcbffd686, 0xd5b88683, 0xd1799b34, - 0xdc3abded, 0xd8fba05a, 0x690ce0ee, 0x6dcdfd59, 0x608edb80, 0x644fc637, - 0x7a089632, 0x7ec98b85, 0x738aad5c, 0x774bb0eb, 0x4f040d56, 0x4bc510e1, - 0x46863638, 0x42472b8f, 0x5c007b8a, 0x58c1663d, 0x558240e4, 0x51435d53, - 0x251d3b9e, 0x21dc2629, 0x2c9f00f0, 0x285e1d47, 0x36194d42, 0x32d850f5, - 0x3f9b762c, 0x3b5a6b9b, 0x0315d626, 0x07d4cb91, 0x0a97ed48, 0x0e56f0ff, - 0x1011a0fa, 0x14d0bd4d, 0x19939b94, 0x1d528623, 0xf12f560e, 0xf5ee4bb9, - 0xf8ad6d60, 0xfc6c70d7, 0xe22b20d2, 0xe6ea3d65, 0xeba91bbc, 0xef68060b, - 0xd727bbb6, 0xd3e6a601, 0xdea580d8, 0xda649d6f, 0xc423cd6a, 0xc0e2d0dd, - 0xcda1f604, 0xc960ebb3, 0xbd3e8d7e, 0xb9ff90c9, 0xb4bcb610, 0xb07daba7, - 0xae3afba2, 0xaafbe615, 0xa7b8c0cc, 0xa379dd7b, 0x9b3660c6, 0x9ff77d71, - 0x92b45ba8, 0x9675461f, 0x8832161a, 0x8cf30bad, 0x81b02d74, 0x857130c3, - 0x5d8a9099, 0x594b8d2e, 0x5408abf7, 0x50c9b640, 0x4e8ee645, 0x4a4ffbf2, - 0x470cdd2b, 0x43cdc09c, 0x7b827d21, 0x7f436096, 0x7200464f, 0x76c15bf8, - 0x68860bfd, 0x6c47164a, 0x61043093, 0x65c52d24, 0x119b4be9, 0x155a565e, - 0x18197087, 0x1cd86d30, 0x029f3d35, 0x065e2082, 0x0b1d065b, 0x0fdc1bec, - 0x3793a651, 0x3352bbe6, 0x3e119d3f, 0x3ad08088, 0x2497d08d, 0x2056cd3a, - 0x2d15ebe3, 0x29d4f654, 0xc5a92679, 0xc1683bce, 0xcc2b1d17, 0xc8ea00a0, - 0xd6ad50a5, 0xd26c4d12, 0xdf2f6bcb, 0xdbee767c, 0xe3a1cbc1, 0xe760d676, - 0xea23f0af, 0xeee2ed18, 0xf0a5bd1d, 0xf464a0aa, 0xf9278673, 0xfde69bc4, - 0x89b8fd09, 0x8d79e0be, 0x803ac667, 0x84fbdbd0, 0x9abc8bd5, 0x9e7d9662, - 0x933eb0bb, 0x97ffad0c, 0xafb010b1, 0xab710d06, 0xa6322bdf, 0xa2f33668, - 0xbcb4666d, 0xb8757bda, 0xb5365d03, 0xb1f740b4 - }; - - uint32_t crc = 0xffffffff; - - for (int i=0; i> 24) ^ *data++) & 0xff]; + return false; +} + +string srs_path_dirname(string path) +{ + std::string dirname = path; + size_t pos = string::npos; + + if ((pos = dirname.rfind("/")) != string::npos) { + if (pos == 0) { + return "/"; + } + dirname = dirname.substr(0, pos); + } + + return dirname; +} + +string srs_path_basename(string path) +{ + std::string dirname = path; + size_t pos = string::npos; + + if ((pos = dirname.rfind("/")) != string::npos) { + // the basename("/") is "/" + if (dirname.length() == 1) { + return dirname; + } + dirname = dirname.substr(pos + 1); + } + + return dirname; +} + +string srs_path_filename(string path) +{ + std::string filename = path; + size_t pos = string::npos; + + if ((pos = filename.rfind(".")) != string::npos) { + return filename.substr(0, pos); + } + + return filename; +} + +string srs_path_filext(string path) +{ + size_t pos = string::npos; + + if ((pos = path.rfind(".")) != string::npos) { + return path.substr(pos); + } + + return ""; +} + +bool srs_avc_startswith_annexb(SrsBuffer* stream, int* pnb_start_code) +{ + char* bytes = stream->data() + stream->pos(); + char* p = bytes; + + for (;;) { + if (!stream->require((int)(p - bytes + 3))) { + return false; } - return crc; - } - - // @see https://github.com/ETrun/crc32/blob/master/crc32.c - uint32_t __crc32_ieee(uint32_t init, const uint8_t* buf, size_t nb_buf) - { - /*----------------------------------------------------------------------------*\ - * CRC-32 version 2.0.0 by Craig Bruce, 2006-04-29. - * - * This program generates the CRC-32 values for the files named in the - * command-line arguments. These are the same CRC-32 values used by GZIP, - * PKZIP, and ZMODEM. The Crc32_ComputeBuf() can also be detached and - * used independently. - * - * THIS PROGRAM IS PUBLIC-DOMAIN SOFTWARE. - * - * Based on the byte-oriented implementation "File Verification Using CRC" - * by Mark R. Nelson in Dr. Dobb's Journal, May 1992, pp. 64-67. - * - * v1.0.0: original release. - * v1.0.1: fixed printf formats. - * v1.0.2: fixed something else. - * v1.0.3: replaced CRC constant table by generator function. - * v1.0.4: reformatted code, made ANSI C. 1994-12-05. - * v2.0.0: rewrote to use memory buffer & static table, 2006-04-29. - * v2.1.0: modified by Nico, 2013-04-20 - \*----------------------------------------------------------------------------*/ - static const uint32_t table[256] = { - 0x00000000,0x77073096,0xEE0E612C,0x990951BA,0x076DC419,0x706AF48F,0xE963A535, - 0x9E6495A3,0x0EDB8832,0x79DCB8A4,0xE0D5E91E,0x97D2D988,0x09B64C2B,0x7EB17CBD, - 0xE7B82D07,0x90BF1D91,0x1DB71064,0x6AB020F2,0xF3B97148,0x84BE41DE,0x1ADAD47D, - 0x6DDDE4EB,0xF4D4B551,0x83D385C7,0x136C9856,0x646BA8C0,0xFD62F97A,0x8A65C9EC, - 0x14015C4F,0x63066CD9,0xFA0F3D63,0x8D080DF5,0x3B6E20C8,0x4C69105E,0xD56041E4, - 0xA2677172,0x3C03E4D1,0x4B04D447,0xD20D85FD,0xA50AB56B,0x35B5A8FA,0x42B2986C, - 0xDBBBC9D6,0xACBCF940,0x32D86CE3,0x45DF5C75,0xDCD60DCF,0xABD13D59,0x26D930AC, - 0x51DE003A,0xC8D75180,0xBFD06116,0x21B4F4B5,0x56B3C423,0xCFBA9599,0xB8BDA50F, - 0x2802B89E,0x5F058808,0xC60CD9B2,0xB10BE924,0x2F6F7C87,0x58684C11,0xC1611DAB, - 0xB6662D3D,0x76DC4190,0x01DB7106,0x98D220BC,0xEFD5102A,0x71B18589,0x06B6B51F, - 0x9FBFE4A5,0xE8B8D433,0x7807C9A2,0x0F00F934,0x9609A88E,0xE10E9818,0x7F6A0DBB, - 0x086D3D2D,0x91646C97,0xE6635C01,0x6B6B51F4,0x1C6C6162,0x856530D8,0xF262004E, - 0x6C0695ED,0x1B01A57B,0x8208F4C1,0xF50FC457,0x65B0D9C6,0x12B7E950,0x8BBEB8EA, - 0xFCB9887C,0x62DD1DDF,0x15DA2D49,0x8CD37CF3,0xFBD44C65,0x4DB26158,0x3AB551CE, - 0xA3BC0074,0xD4BB30E2,0x4ADFA541,0x3DD895D7,0xA4D1C46D,0xD3D6F4FB,0x4369E96A, - 0x346ED9FC,0xAD678846,0xDA60B8D0,0x44042D73,0x33031DE5,0xAA0A4C5F,0xDD0D7CC9, - 0x5005713C,0x270241AA,0xBE0B1010,0xC90C2086,0x5768B525,0x206F85B3,0xB966D409, - 0xCE61E49F,0x5EDEF90E,0x29D9C998,0xB0D09822,0xC7D7A8B4,0x59B33D17,0x2EB40D81, - 0xB7BD5C3B,0xC0BA6CAD,0xEDB88320,0x9ABFB3B6,0x03B6E20C,0x74B1D29A,0xEAD54739, - 0x9DD277AF,0x04DB2615,0x73DC1683,0xE3630B12,0x94643B84,0x0D6D6A3E,0x7A6A5AA8, - 0xE40ECF0B,0x9309FF9D,0x0A00AE27,0x7D079EB1,0xF00F9344,0x8708A3D2,0x1E01F268, - 0x6906C2FE,0xF762575D,0x806567CB,0x196C3671,0x6E6B06E7,0xFED41B76,0x89D32BE0, - 0x10DA7A5A,0x67DD4ACC,0xF9B9DF6F,0x8EBEEFF9,0x17B7BE43,0x60B08ED5,0xD6D6A3E8, - 0xA1D1937E,0x38D8C2C4,0x4FDFF252,0xD1BB67F1,0xA6BC5767,0x3FB506DD,0x48B2364B, - 0xD80D2BDA,0xAF0A1B4C,0x36034AF6,0x41047A60,0xDF60EFC3,0xA867DF55,0x316E8EEF, - 0x4669BE79,0xCB61B38C,0xBC66831A,0x256FD2A0,0x5268E236,0xCC0C7795,0xBB0B4703, - 0x220216B9,0x5505262F,0xC5BA3BBE,0xB2BD0B28,0x2BB45A92,0x5CB36A04,0xC2D7FFA7, - 0xB5D0CF31,0x2CD99E8B,0x5BDEAE1D,0x9B64C2B0,0xEC63F226,0x756AA39C,0x026D930A, - 0x9C0906A9,0xEB0E363F,0x72076785,0x05005713,0x95BF4A82,0xE2B87A14,0x7BB12BAE, - 0x0CB61B38,0x92D28E9B,0xE5D5BE0D,0x7CDCEFB7,0x0BDBDF21,0x86D3D2D4,0xF1D4E242, - 0x68DDB3F8,0x1FDA836E,0x81BE16CD,0xF6B9265B,0x6FB077E1,0x18B74777,0x88085AE6, - 0xFF0F6A70,0x66063BCA,0x11010B5C,0x8F659EFF,0xF862AE69,0x616BFFD3,0x166CCF45, - 0xA00AE278,0xD70DD2EE,0x4E048354,0x3903B3C2,0xA7672661,0xD06016F7,0x4969474D, - 0x3E6E77DB,0xAED16A4A,0xD9D65ADC,0x40DF0B66,0x37D83BF0,0xA9BCAE53,0xDEBB9EC5, - 0x47B2CF7F,0x30B5FFE9,0xBDBDF21C,0xCABAC28A,0x53B39330,0x24B4A3A6,0xBAD03605, - 0xCDD70693,0x54DE5729,0x23D967BF,0xB3667A2E,0xC4614AB8,0x5D681B02,0x2A6F2B94, - 0xB40BBE37,0xC30C8EA1,0x5A05DF1B,0x2D02EF8D - }; - - uint32_t crc = init ^ 0xFFFFFFFF; - - for (size_t i = 0; i < nb_buf; i++) { - crc = table[(crc ^ buf[i]) & 0xff] ^ (crc >> 8); + // not match + if (p[0] != (char)0x00 || p[1] != (char)0x00) { + return false; } - return crc^0xFFFFFFFF; + // match N[00] 00 00 01, where N>=0 + if (p[2] == (char)0x01) { + if (pnb_start_code) { + *pnb_start_code = (int)(p - bytes) + 3; + } + return true; + } + + p++; } - uint32_t srs_crc32_mpegts(const void* buf, int size) - { - return __mpegts_crc32((const uint8_t*)buf, size); + return false; +} + +bool srs_aac_startswith_adts(SrsBuffer* stream) +{ + char* bytes = stream->data() + stream->pos(); + char* p = bytes; + + if (!stream->require((int)(p - bytes) + 2)) { + return false; } - uint32_t srs_crc32_ieee(const void* buf, int size, uint32_t previous) - { - return __crc32_ieee(previous, (const uint8_t*)buf, size); + // matched 12bits 0xFFF, + // @remark, we must cast the 0xff to char to compare. + if (p[0] != (char)0xff || (char)(p[1] & 0xf0) != (char)0xf0) { + return false; } + return true; +} + +// @see http://www.stmc.edu.hk/~vincent/ffmpeg_0.4.9-pre1/libavformat/mpegtsenc.c +unsigned int __mpegts_crc32(const uint8_t *data, int len) +{ /* - * Copyright (c) 2006 Ryan Martell. (rdm4@martellventures.com) + * MPEG2 transport stream (aka DVB) mux + * Copyright (c) 2003 Fabrice Bellard. * - * This file is part of FFmpeg. - * - * FFmpeg is free software; you can redistribute it and/or + * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either - * version 2.1 of the License, or (at your option) any later version. + * version 2 of the License, or (at your option) any later version. * - * FFmpeg is distributed in the hope that it will be useful, + * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public - * License along with FFmpeg; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ + static const uint32_t table[256] = { + 0x00000000, 0x04c11db7, 0x09823b6e, 0x0d4326d9, 0x130476dc, 0x17c56b6b, + 0x1a864db2, 0x1e475005, 0x2608edb8, 0x22c9f00f, 0x2f8ad6d6, 0x2b4bcb61, + 0x350c9b64, 0x31cd86d3, 0x3c8ea00a, 0x384fbdbd, 0x4c11db70, 0x48d0c6c7, + 0x4593e01e, 0x4152fda9, 0x5f15adac, 0x5bd4b01b, 0x569796c2, 0x52568b75, + 0x6a1936c8, 0x6ed82b7f, 0x639b0da6, 0x675a1011, 0x791d4014, 0x7ddc5da3, + 0x709f7b7a, 0x745e66cd, 0x9823b6e0, 0x9ce2ab57, 0x91a18d8e, 0x95609039, + 0x8b27c03c, 0x8fe6dd8b, 0x82a5fb52, 0x8664e6e5, 0xbe2b5b58, 0xbaea46ef, + 0xb7a96036, 0xb3687d81, 0xad2f2d84, 0xa9ee3033, 0xa4ad16ea, 0xa06c0b5d, + 0xd4326d90, 0xd0f37027, 0xddb056fe, 0xd9714b49, 0xc7361b4c, 0xc3f706fb, + 0xceb42022, 0xca753d95, 0xf23a8028, 0xf6fb9d9f, 0xfbb8bb46, 0xff79a6f1, + 0xe13ef6f4, 0xe5ffeb43, 0xe8bccd9a, 0xec7dd02d, 0x34867077, 0x30476dc0, + 0x3d044b19, 0x39c556ae, 0x278206ab, 0x23431b1c, 0x2e003dc5, 0x2ac12072, + 0x128e9dcf, 0x164f8078, 0x1b0ca6a1, 0x1fcdbb16, 0x018aeb13, 0x054bf6a4, + 0x0808d07d, 0x0cc9cdca, 0x7897ab07, 0x7c56b6b0, 0x71159069, 0x75d48dde, + 0x6b93dddb, 0x6f52c06c, 0x6211e6b5, 0x66d0fb02, 0x5e9f46bf, 0x5a5e5b08, + 0x571d7dd1, 0x53dc6066, 0x4d9b3063, 0x495a2dd4, 0x44190b0d, 0x40d816ba, + 0xaca5c697, 0xa864db20, 0xa527fdf9, 0xa1e6e04e, 0xbfa1b04b, 0xbb60adfc, + 0xb6238b25, 0xb2e29692, 0x8aad2b2f, 0x8e6c3698, 0x832f1041, 0x87ee0df6, + 0x99a95df3, 0x9d684044, 0x902b669d, 0x94ea7b2a, 0xe0b41de7, 0xe4750050, + 0xe9362689, 0xedf73b3e, 0xf3b06b3b, 0xf771768c, 0xfa325055, 0xfef34de2, + 0xc6bcf05f, 0xc27dede8, 0xcf3ecb31, 0xcbffd686, 0xd5b88683, 0xd1799b34, + 0xdc3abded, 0xd8fba05a, 0x690ce0ee, 0x6dcdfd59, 0x608edb80, 0x644fc637, + 0x7a089632, 0x7ec98b85, 0x738aad5c, 0x774bb0eb, 0x4f040d56, 0x4bc510e1, + 0x46863638, 0x42472b8f, 0x5c007b8a, 0x58c1663d, 0x558240e4, 0x51435d53, + 0x251d3b9e, 0x21dc2629, 0x2c9f00f0, 0x285e1d47, 0x36194d42, 0x32d850f5, + 0x3f9b762c, 0x3b5a6b9b, 0x0315d626, 0x07d4cb91, 0x0a97ed48, 0x0e56f0ff, + 0x1011a0fa, 0x14d0bd4d, 0x19939b94, 0x1d528623, 0xf12f560e, 0xf5ee4bb9, + 0xf8ad6d60, 0xfc6c70d7, 0xe22b20d2, 0xe6ea3d65, 0xeba91bbc, 0xef68060b, + 0xd727bbb6, 0xd3e6a601, 0xdea580d8, 0xda649d6f, 0xc423cd6a, 0xc0e2d0dd, + 0xcda1f604, 0xc960ebb3, 0xbd3e8d7e, 0xb9ff90c9, 0xb4bcb610, 0xb07daba7, + 0xae3afba2, 0xaafbe615, 0xa7b8c0cc, 0xa379dd7b, 0x9b3660c6, 0x9ff77d71, + 0x92b45ba8, 0x9675461f, 0x8832161a, 0x8cf30bad, 0x81b02d74, 0x857130c3, + 0x5d8a9099, 0x594b8d2e, 0x5408abf7, 0x50c9b640, 0x4e8ee645, 0x4a4ffbf2, + 0x470cdd2b, 0x43cdc09c, 0x7b827d21, 0x7f436096, 0x7200464f, 0x76c15bf8, + 0x68860bfd, 0x6c47164a, 0x61043093, 0x65c52d24, 0x119b4be9, 0x155a565e, + 0x18197087, 0x1cd86d30, 0x029f3d35, 0x065e2082, 0x0b1d065b, 0x0fdc1bec, + 0x3793a651, 0x3352bbe6, 0x3e119d3f, 0x3ad08088, 0x2497d08d, 0x2056cd3a, + 0x2d15ebe3, 0x29d4f654, 0xc5a92679, 0xc1683bce, 0xcc2b1d17, 0xc8ea00a0, + 0xd6ad50a5, 0xd26c4d12, 0xdf2f6bcb, 0xdbee767c, 0xe3a1cbc1, 0xe760d676, + 0xea23f0af, 0xeee2ed18, 0xf0a5bd1d, 0xf464a0aa, 0xf9278673, 0xfde69bc4, + 0x89b8fd09, 0x8d79e0be, 0x803ac667, 0x84fbdbd0, 0x9abc8bd5, 0x9e7d9662, + 0x933eb0bb, 0x97ffad0c, 0xafb010b1, 0xab710d06, 0xa6322bdf, 0xa2f33668, + 0xbcb4666d, 0xb8757bda, 0xb5365d03, 0xb1f740b4 + }; + uint32_t crc = 0xffffffff; + + for (int i=0; i> 24) ^ *data++) & 0xff]; + } + + return crc; +} + +// @see https://github.com/ETrun/crc32/blob/master/crc32.c + uint32_t __crc32_ieee(uint32_t init, const uint8_t* buf, size_t nb_buf) +{ + /*----------------------------------------------------------------------------*\ + * CRC-32 version 2.0.0 by Craig Bruce, 2006-04-29. + * + * This program generates the CRC-32 values for the files named in the + * command-line arguments. These are the same CRC-32 values used by GZIP, + * PKZIP, and ZMODEM. The Crc32_ComputeBuf() can also be detached and + * used independently. + * + * THIS PROGRAM IS PUBLIC-DOMAIN SOFTWARE. + * + * Based on the byte-oriented implementation "File Verification Using CRC" + * by Mark R. Nelson in Dr. Dobb's Journal, May 1992, pp. 64-67. + * + * v1.0.0: original release. + * v1.0.1: fixed printf formats. + * v1.0.2: fixed something else. + * v1.0.3: replaced CRC constant table by generator function. + * v1.0.4: reformatted code, made ANSI C. 1994-12-05. + * v2.0.0: rewrote to use memory buffer & static table, 2006-04-29. + * v2.1.0: modified by Nico, 2013-04-20 + \*----------------------------------------------------------------------------*/ + static const uint32_t table[256] = { + 0x00000000,0x77073096,0xEE0E612C,0x990951BA,0x076DC419,0x706AF48F,0xE963A535, + 0x9E6495A3,0x0EDB8832,0x79DCB8A4,0xE0D5E91E,0x97D2D988,0x09B64C2B,0x7EB17CBD, + 0xE7B82D07,0x90BF1D91,0x1DB71064,0x6AB020F2,0xF3B97148,0x84BE41DE,0x1ADAD47D, + 0x6DDDE4EB,0xF4D4B551,0x83D385C7,0x136C9856,0x646BA8C0,0xFD62F97A,0x8A65C9EC, + 0x14015C4F,0x63066CD9,0xFA0F3D63,0x8D080DF5,0x3B6E20C8,0x4C69105E,0xD56041E4, + 0xA2677172,0x3C03E4D1,0x4B04D447,0xD20D85FD,0xA50AB56B,0x35B5A8FA,0x42B2986C, + 0xDBBBC9D6,0xACBCF940,0x32D86CE3,0x45DF5C75,0xDCD60DCF,0xABD13D59,0x26D930AC, + 0x51DE003A,0xC8D75180,0xBFD06116,0x21B4F4B5,0x56B3C423,0xCFBA9599,0xB8BDA50F, + 0x2802B89E,0x5F058808,0xC60CD9B2,0xB10BE924,0x2F6F7C87,0x58684C11,0xC1611DAB, + 0xB6662D3D,0x76DC4190,0x01DB7106,0x98D220BC,0xEFD5102A,0x71B18589,0x06B6B51F, + 0x9FBFE4A5,0xE8B8D433,0x7807C9A2,0x0F00F934,0x9609A88E,0xE10E9818,0x7F6A0DBB, + 0x086D3D2D,0x91646C97,0xE6635C01,0x6B6B51F4,0x1C6C6162,0x856530D8,0xF262004E, + 0x6C0695ED,0x1B01A57B,0x8208F4C1,0xF50FC457,0x65B0D9C6,0x12B7E950,0x8BBEB8EA, + 0xFCB9887C,0x62DD1DDF,0x15DA2D49,0x8CD37CF3,0xFBD44C65,0x4DB26158,0x3AB551CE, + 0xA3BC0074,0xD4BB30E2,0x4ADFA541,0x3DD895D7,0xA4D1C46D,0xD3D6F4FB,0x4369E96A, + 0x346ED9FC,0xAD678846,0xDA60B8D0,0x44042D73,0x33031DE5,0xAA0A4C5F,0xDD0D7CC9, + 0x5005713C,0x270241AA,0xBE0B1010,0xC90C2086,0x5768B525,0x206F85B3,0xB966D409, + 0xCE61E49F,0x5EDEF90E,0x29D9C998,0xB0D09822,0xC7D7A8B4,0x59B33D17,0x2EB40D81, + 0xB7BD5C3B,0xC0BA6CAD,0xEDB88320,0x9ABFB3B6,0x03B6E20C,0x74B1D29A,0xEAD54739, + 0x9DD277AF,0x04DB2615,0x73DC1683,0xE3630B12,0x94643B84,0x0D6D6A3E,0x7A6A5AA8, + 0xE40ECF0B,0x9309FF9D,0x0A00AE27,0x7D079EB1,0xF00F9344,0x8708A3D2,0x1E01F268, + 0x6906C2FE,0xF762575D,0x806567CB,0x196C3671,0x6E6B06E7,0xFED41B76,0x89D32BE0, + 0x10DA7A5A,0x67DD4ACC,0xF9B9DF6F,0x8EBEEFF9,0x17B7BE43,0x60B08ED5,0xD6D6A3E8, + 0xA1D1937E,0x38D8C2C4,0x4FDFF252,0xD1BB67F1,0xA6BC5767,0x3FB506DD,0x48B2364B, + 0xD80D2BDA,0xAF0A1B4C,0x36034AF6,0x41047A60,0xDF60EFC3,0xA867DF55,0x316E8EEF, + 0x4669BE79,0xCB61B38C,0xBC66831A,0x256FD2A0,0x5268E236,0xCC0C7795,0xBB0B4703, + 0x220216B9,0x5505262F,0xC5BA3BBE,0xB2BD0B28,0x2BB45A92,0x5CB36A04,0xC2D7FFA7, + 0xB5D0CF31,0x2CD99E8B,0x5BDEAE1D,0x9B64C2B0,0xEC63F226,0x756AA39C,0x026D930A, + 0x9C0906A9,0xEB0E363F,0x72076785,0x05005713,0x95BF4A82,0xE2B87A14,0x7BB12BAE, + 0x0CB61B38,0x92D28E9B,0xE5D5BE0D,0x7CDCEFB7,0x0BDBDF21,0x86D3D2D4,0xF1D4E242, + 0x68DDB3F8,0x1FDA836E,0x81BE16CD,0xF6B9265B,0x6FB077E1,0x18B74777,0x88085AE6, + 0xFF0F6A70,0x66063BCA,0x11010B5C,0x8F659EFF,0xF862AE69,0x616BFFD3,0x166CCF45, + 0xA00AE278,0xD70DD2EE,0x4E048354,0x3903B3C2,0xA7672661,0xD06016F7,0x4969474D, + 0x3E6E77DB,0xAED16A4A,0xD9D65ADC,0x40DF0B66,0x37D83BF0,0xA9BCAE53,0xDEBB9EC5, + 0x47B2CF7F,0x30B5FFE9,0xBDBDF21C,0xCABAC28A,0x53B39330,0x24B4A3A6,0xBAD03605, + 0xCDD70693,0x54DE5729,0x23D967BF,0xB3667A2E,0xC4614AB8,0x5D681B02,0x2A6F2B94, + 0xB40BBE37,0xC30C8EA1,0x5A05DF1B,0x2D02EF8D + }; + + uint32_t crc = init ^ 0xFFFFFFFF; + + for (size_t i = 0; i < nb_buf; i++) { + crc = table[(crc ^ buf[i]) & 0xff] ^ (crc >> 8); + } + + return crc^0xFFFFFFFF; +} + +uint32_t srs_crc32_mpegts(const void* buf, int size) +{ + return __mpegts_crc32((const uint8_t*)buf, size); +} + +uint32_t srs_crc32_ieee(const void* buf, int size, uint32_t previous) +{ + return __crc32_ieee(previous, (const uint8_t*)buf, size); +} + +/* + * Copyright (c) 2006 Ryan Martell. (rdm4@martellventures.com) + * + * This file is part of FFmpeg. + * + * FFmpeg is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * FFmpeg is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with FFmpeg; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ #ifndef UINT_MAX #define UINT_MAX 0xffffffff #endif @@ -883,59 +885,58 @@ int srs_do_create_dir_recursively(string dir) #define AV_BSWAP32C(x) (AV_BSWAP16C(x) << 16 | AV_BSWAP16C((x) >> 16)) #ifndef av_bswap32 - static const uint32_t av_bswap32(uint32_t x) - { - return AV_BSWAP32C(x); - } +static const uint32_t av_bswap32(uint32_t x) +{ + return AV_BSWAP32C(x); +} #endif #define av_be2ne32(x) av_bswap32(x) +/** + * @file + * @brief Base64 encode/decode + * @author Ryan Martell (with lots of Michael) + */ + +/* ---------------- private code */ +static const uint8_t map2[256] = +{ + 0xfe, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, + 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, + 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, + 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, + 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, + 0xff, 0xff, 0xff, - /** - * @file - * @brief Base64 encode/decode - * @author Ryan Martell (with lots of Michael) - */ + 0x3e, 0xff, 0xff, 0xff, 0x3f, 0x34, 0x35, 0x36, + 0x37, 0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0xff, + 0xff, 0xff, 0xfe, 0xff, 0xff, 0xff, 0x00, 0x01, + 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, + 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, 0x10, 0x11, + 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18, 0x19, + 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x1a, 0x1b, + 0x1c, 0x1d, 0x1e, 0x1f, 0x20, 0x21, 0x22, 0x23, + 0x24, 0x25, 0x26, 0x27, 0x28, 0x29, 0x2a, 0x2b, + 0x2c, 0x2d, 0x2e, 0x2f, 0x30, 0x31, 0x32, 0x33, - /* ---------------- private code */ - static const uint8_t map2[256] = - { - 0xfe, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, - 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, - 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, - 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, - 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, - 0xff, 0xff, 0xff, - - 0x3e, 0xff, 0xff, 0xff, 0x3f, 0x34, 0x35, 0x36, - 0x37, 0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0xff, - 0xff, 0xff, 0xfe, 0xff, 0xff, 0xff, 0x00, 0x01, - 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, - 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, 0x10, 0x11, - 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18, 0x19, - 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x1a, 0x1b, - 0x1c, 0x1d, 0x1e, 0x1f, 0x20, 0x21, 0x22, 0x23, - 0x24, 0x25, 0x26, 0x27, 0x28, 0x29, 0x2a, 0x2b, - 0x2c, 0x2d, 0x2e, 0x2f, 0x30, 0x31, 0x32, 0x33, - - 0xff, 0xff, 0xff, 0xff, 0xff, - 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, - 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, - 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, - 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, - 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, - 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, - 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, - 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, - 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, - 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, - 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, - 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, - 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, - 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, - 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, - 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, - }; + 0xff, 0xff, 0xff, 0xff, 0xff, + 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, + 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, + 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, + 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, + 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, + 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, + 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, + 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, + 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, + 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, + 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, + 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, + 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, + 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, + 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, + 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, +}; #define BASE64_DEC_STEP(i) do { \ bits = map2[in[i]]; \ @@ -944,261 +945,260 @@ int srs_do_create_dir_recursively(string dir) v = i ? (v << 6) + bits : bits; \ } while(0) - int srs_av_base64_decode(uint8_t* out, const char* in_str, int out_size) - { - uint8_t *dst = out; - uint8_t *end = out + out_size; - // no sign extension - const uint8_t *in = (const uint8_t*)in_str; - unsigned bits = 0xff; - unsigned v = 0; - - while (end - dst > 3) { - BASE64_DEC_STEP(0); - BASE64_DEC_STEP(1); - BASE64_DEC_STEP(2); - BASE64_DEC_STEP(3); - // Using AV_WB32 directly confuses compiler - v = av_be2ne32(v << 8); - AV_WN32(dst, v); - dst += 3; - in += 4; - } - if (end - dst) { - BASE64_DEC_STEP(0); - BASE64_DEC_STEP(1); - BASE64_DEC_STEP(2); - BASE64_DEC_STEP(3); - *dst++ = v >> 16; - if (end - dst) - *dst++ = v >> 8; - if (end - dst) - *dst++ = v; - in += 4; - } - while (1) { - BASE64_DEC_STEP(0); - in++; - BASE64_DEC_STEP(0); - in++; - BASE64_DEC_STEP(0); - in++; - BASE64_DEC_STEP(0); - in++; - } - - out3: - *dst++ = v >> 10; - v <<= 2; - out2: - *dst++ = v >> 4; - out1: - out0: - return bits & 1 ? -1 : (int)(dst - out); +int srs_av_base64_decode(uint8_t* out, const char* in_str, int out_size) +{ + uint8_t *dst = out; + uint8_t *end = out + out_size; + // no sign extension + const uint8_t *in = (const uint8_t*)in_str; + unsigned bits = 0xff; + unsigned v = 0; + + while (end - dst > 3) { + BASE64_DEC_STEP(0); + BASE64_DEC_STEP(1); + BASE64_DEC_STEP(2); + BASE64_DEC_STEP(3); + // Using AV_WB32 directly confuses compiler + v = av_be2ne32(v << 8); + AV_WN32(dst, v); + dst += 3; + in += 4; + } + if (end - dst) { + BASE64_DEC_STEP(0); + BASE64_DEC_STEP(1); + BASE64_DEC_STEP(2); + BASE64_DEC_STEP(3); + *dst++ = v >> 16; + if (end - dst) + *dst++ = v >> 8; + if (end - dst) + *dst++ = v; + in += 4; + } + while (1) { + BASE64_DEC_STEP(0); + in++; + BASE64_DEC_STEP(0); + in++; + BASE64_DEC_STEP(0); + in++; + BASE64_DEC_STEP(0); + in++; } - /***************************************************************************** - * b64_encode: Stolen from VLC's http.c. - * Simplified by Michael. - * Fixed edge cases and made it work from data (vs. strings) by Ryan. - *****************************************************************************/ +out3: + *dst++ = v >> 10; + v <<= 2; +out2: + *dst++ = v >> 4; +out1: +out0: + return bits & 1 ? -1 : (int)(dst - out); +} + +/***************************************************************************** + * b64_encode: Stolen from VLC's http.c. + * Simplified by Michael. + * Fixed edge cases and made it work from data (vs. strings) by Ryan. + *****************************************************************************/ +char* srs_av_base64_encode(char* out, int out_size, const uint8_t* in, int in_size) +{ + static const char b64[] = + "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/"; + char *ret, *dst; + unsigned i_bits = 0; + int i_shift = 0; + int bytes_remaining = in_size; - char* srs_av_base64_encode(char* out, int out_size, const uint8_t* in, int in_size) - { - static const char b64[] = - "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/"; - char *ret, *dst; - unsigned i_bits = 0; - int i_shift = 0; - int bytes_remaining = in_size; - - if (in_size >= (int)(UINT_MAX / 4) || - out_size < SRS_AV_BASE64_SIZE(in_size)) - return NULL; - ret = dst = out; - while (bytes_remaining > 3) { - i_bits = AV_RB32(in); - in += 3; bytes_remaining -= 3; - *dst++ = b64[ i_bits>>26 ]; - *dst++ = b64[(i_bits>>20) & 0x3F]; - *dst++ = b64[(i_bits>>14) & 0x3F]; - *dst++ = b64[(i_bits>>8 ) & 0x3F]; - } - i_bits = 0; - while (bytes_remaining) { - i_bits = (i_bits << 8) + *in++; - bytes_remaining--; - i_shift += 8; - } - while (i_shift > 0) { - *dst++ = b64[(i_bits << 6 >> i_shift) & 0x3f]; - i_shift -= 6; - } - while ((dst - ret) & 3) - *dst++ = '='; - *dst = '\0'; - - return ret; + if (in_size >= (int)(UINT_MAX / 4) || + out_size < SRS_AV_BASE64_SIZE(in_size)) + return NULL; + ret = dst = out; + while (bytes_remaining > 3) { + i_bits = AV_RB32(in); + in += 3; bytes_remaining -= 3; + *dst++ = b64[ i_bits>>26 ]; + *dst++ = b64[(i_bits>>20) & 0x3F]; + *dst++ = b64[(i_bits>>14) & 0x3F]; + *dst++ = b64[(i_bits>>8 ) & 0x3F]; } + i_bits = 0; + while (bytes_remaining) { + i_bits = (i_bits << 8) + *in++; + bytes_remaining--; + i_shift += 8; + } + while (i_shift > 0) { + *dst++ = b64[(i_bits << 6 >> i_shift) & 0x3f]; + i_shift -= 6; + } + while ((dst - ret) & 3) + *dst++ = '='; + *dst = '\0'; + return ret; +} + #define SPACE_CHARS " \t\r\n" + +int av_toupper(int c) +{ + if (c >= 'a' && c <= 'z') { + c ^= 0x20; + } + return c; +} + +int ff_hex_to_data(uint8_t* data, const char* p) +{ + int c, len, v; - int av_toupper(int c) - { - if (c >= 'a' && c <= 'z') { - c ^= 0x20; + len = 0; + v = 1; + for (;;) { + p += strspn(p, SPACE_CHARS); + if (*p == '\0') + break; + c = av_toupper((unsigned char) *p++); + if (c >= '0' && c <= '9') + c = c - '0'; + else if (c >= 'A' && c <= 'F') + c = c - 'A' + 10; + else + break; + v = (v << 4) | c; + if (v & 0x100) { + if (data) + data[len] = v; + len++; + v = 1; } - return c; + } + return len; +} + +int srs_chunk_header_c0(int perfer_cid, uint32_t timestamp, int32_t payload_length, int8_t message_type, int32_t stream_id, char* cache, int nb_cache) +{ + // to directly set the field. + char* pp = NULL; + + // generate the header. + char* p = cache; + + // no header. + if (nb_cache < SRS_CONSTS_RTMP_MAX_FMT0_HEADER_SIZE) { + return 0; } - int ff_hex_to_data(uint8_t* data, const char* p) - { - int c, len, v; - - len = 0; - v = 1; - for (;;) { - p += strspn(p, SPACE_CHARS); - if (*p == '\0') - break; - c = av_toupper((unsigned char) *p++); - if (c >= '0' && c <= '9') - c = c - '0'; - else if (c >= 'A' && c <= 'F') - c = c - 'A' + 10; - else - break; - v = (v << 4) | c; - if (v & 0x100) { - if (data) - data[len] = v; - len++; - v = 1; - } - } - return len; - } + // write new chunk stream header, fmt is 0 + *p++ = 0x00 | (perfer_cid & 0x3F); - int srs_chunk_header_c0(int perfer_cid, uint32_t timestamp, int32_t payload_length, int8_t message_type, int32_t stream_id, char* cache, int nb_cache) - { - // to directly set the field. - char* pp = NULL; - - // generate the header. - char* p = cache; - - // no header. - if (nb_cache < SRS_CONSTS_RTMP_MAX_FMT0_HEADER_SIZE) { - return 0; - } - - // write new chunk stream header, fmt is 0 - *p++ = 0x00 | (perfer_cid & 0x3F); - - // chunk message header, 11 bytes - // timestamp, 3bytes, big-endian - if (timestamp < RTMP_EXTENDED_TIMESTAMP) { - pp = (char*)×tamp; - *p++ = pp[2]; - *p++ = pp[1]; - *p++ = pp[0]; - } else { - *p++ = 0xFF; - *p++ = 0xFF; - *p++ = 0xFF; - } - - // message_length, 3bytes, big-endian - pp = (char*)&payload_length; + // chunk message header, 11 bytes + // timestamp, 3bytes, big-endian + if (timestamp < RTMP_EXTENDED_TIMESTAMP) { + pp = (char*)×tamp; *p++ = pp[2]; *p++ = pp[1]; *p++ = pp[0]; - - // message_type, 1bytes - *p++ = message_type; - - // stream_id, 4bytes, little-endian - pp = (char*)&stream_id; - *p++ = pp[0]; - *p++ = pp[1]; - *p++ = pp[2]; + } else { + *p++ = 0xFF; + *p++ = 0xFF; + *p++ = 0xFF; + } + + // message_length, 3bytes, big-endian + pp = (char*)&payload_length; + *p++ = pp[2]; + *p++ = pp[1]; + *p++ = pp[0]; + + // message_type, 1bytes + *p++ = message_type; + + // stream_id, 4bytes, little-endian + pp = (char*)&stream_id; + *p++ = pp[0]; + *p++ = pp[1]; + *p++ = pp[2]; + *p++ = pp[3]; + + // for c0 + // chunk extended timestamp header, 0 or 4 bytes, big-endian + // + // for c3: + // chunk extended timestamp header, 0 or 4 bytes, big-endian + // 6.1.3. Extended Timestamp + // This field is transmitted only when the normal time stamp in the + // chunk message header is set to 0x00ffffff. If normal time stamp is + // set to any value less than 0x00ffffff, this field MUST NOT be + // present. This field MUST NOT be present if the timestamp field is not + // present. Type 3 chunks MUST NOT have this field. + // adobe changed for Type3 chunk: + // FMLE always sendout the extended-timestamp, + // must send the extended-timestamp to FMS, + // must send the extended-timestamp to flash-player. + // @see: ngx_rtmp_prepare_message + // @see: http://blog.csdn.net/win_lin/article/details/13363699 + // TODO: FIXME: extract to outer. + if (timestamp >= RTMP_EXTENDED_TIMESTAMP) { + pp = (char*)×tamp; *p++ = pp[3]; - - // for c0 - // chunk extended timestamp header, 0 or 4 bytes, big-endian - // - // for c3: - // chunk extended timestamp header, 0 or 4 bytes, big-endian - // 6.1.3. Extended Timestamp - // This field is transmitted only when the normal time stamp in the - // chunk message header is set to 0x00ffffff. If normal time stamp is - // set to any value less than 0x00ffffff, this field MUST NOT be - // present. This field MUST NOT be present if the timestamp field is not - // present. Type 3 chunks MUST NOT have this field. - // adobe changed for Type3 chunk: - // FMLE always sendout the extended-timestamp, - // must send the extended-timestamp to FMS, - // must send the extended-timestamp to flash-player. - // @see: ngx_rtmp_prepare_message - // @see: http://blog.csdn.net/win_lin/article/details/13363699 - // TODO: FIXME: extract to outer. - if (timestamp >= RTMP_EXTENDED_TIMESTAMP) { - pp = (char*)×tamp; - *p++ = pp[3]; - *p++ = pp[2]; - *p++ = pp[1]; - *p++ = pp[0]; - } - - // always has header - return (int)(p - cache); + *p++ = pp[2]; + *p++ = pp[1]; + *p++ = pp[0]; } - int srs_chunk_header_c3(int perfer_cid, uint32_t timestamp, char* cache, int nb_cache) - { - // to directly set the field. - char* pp = NULL; - - // generate the header. - char* p = cache; - - // no header. - if (nb_cache < SRS_CONSTS_RTMP_MAX_FMT3_HEADER_SIZE) { - return 0; - } - - // write no message header chunk stream, fmt is 3 - // @remark, if perfer_cid > 0x3F, that is, use 2B/3B chunk header, - // SRS will rollback to 1B chunk header. - *p++ = 0xC0 | (perfer_cid & 0x3F); - - // for c0 - // chunk extended timestamp header, 0 or 4 bytes, big-endian - // - // for c3: - // chunk extended timestamp header, 0 or 4 bytes, big-endian - // 6.1.3. Extended Timestamp - // This field is transmitted only when the normal time stamp in the - // chunk message header is set to 0x00ffffff. If normal time stamp is - // set to any value less than 0x00ffffff, this field MUST NOT be - // present. This field MUST NOT be present if the timestamp field is not - // present. Type 3 chunks MUST NOT have this field. - // adobe changed for Type3 chunk: - // FMLE always sendout the extended-timestamp, - // must send the extended-timestamp to FMS, - // must send the extended-timestamp to flash-player. - // @see: ngx_rtmp_prepare_message - // @see: http://blog.csdn.net/win_lin/article/details/13363699 - // TODO: FIXME: extract to outer. - if (timestamp >= RTMP_EXTENDED_TIMESTAMP) { - pp = (char*)×tamp; - *p++ = pp[3]; - *p++ = pp[2]; - *p++ = pp[1]; - *p++ = pp[0]; - } - - // always has header - return (int)(p - cache); + // always has header + return (int)(p - cache); +} + +int srs_chunk_header_c3(int perfer_cid, uint32_t timestamp, char* cache, int nb_cache) +{ + // to directly set the field. + char* pp = NULL; + + // generate the header. + char* p = cache; + + // no header. + if (nb_cache < SRS_CONSTS_RTMP_MAX_FMT3_HEADER_SIZE) { + return 0; } + // write no message header chunk stream, fmt is 3 + // @remark, if perfer_cid > 0x3F, that is, use 2B/3B chunk header, + // SRS will rollback to 1B chunk header. + *p++ = 0xC0 | (perfer_cid & 0x3F); + + // for c0 + // chunk extended timestamp header, 0 or 4 bytes, big-endian + // + // for c3: + // chunk extended timestamp header, 0 or 4 bytes, big-endian + // 6.1.3. Extended Timestamp + // This field is transmitted only when the normal time stamp in the + // chunk message header is set to 0x00ffffff. If normal time stamp is + // set to any value less than 0x00ffffff, this field MUST NOT be + // present. This field MUST NOT be present if the timestamp field is not + // present. Type 3 chunks MUST NOT have this field. + // adobe changed for Type3 chunk: + // FMLE always sendout the extended-timestamp, + // must send the extended-timestamp to FMS, + // must send the extended-timestamp to flash-player. + // @see: ngx_rtmp_prepare_message + // @see: http://blog.csdn.net/win_lin/article/details/13363699 + // TODO: FIXME: extract to outer. + if (timestamp >= RTMP_EXTENDED_TIMESTAMP) { + pp = (char*)×tamp; + *p++ = pp[3]; + *p++ = pp[2]; + *p++ = pp[1]; + *p++ = pp[0]; + } + + // always has header + return (int)(p - cache); +} + diff --git a/trunk/src/utest/srs_utest_kernel.cpp b/trunk/src/utest/srs_utest_kernel.cpp index 1354dd3f8..194ff4ccb 100644 --- a/trunk/src/utest/srs_utest_kernel.cpp +++ b/trunk/src/utest/srs_utest_kernel.cpp @@ -1523,5 +1523,24 @@ VOID TEST(KernelUtility, AvcUev) } } +VOID TEST(KernelUtility, CRC32IEEE) +{ + string datas[] = { + "123456789", "srs", "ossrs.net", + "SRS's a simplest, conceptual integrated, industrial-strength live streaming origin cluster." + }; + + uint32_t checksums[] = { + 0xcbf43926, 0x7df334e9, 0x2f52242b, + 0x7e8677bd + }; + + for (int i = 0; i < (int)(sizeof(datas)/sizeof(string)); i++) { + string data = datas[i]; + uint32_t checksum = checksums[i]; + EXPECT_EQ(checksum, srs_crc32_ieee(data.data(), data.length(), 0)); + } +} + #endif