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For #299, refine code.
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winlin
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62b7204514
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175 changed files with 15529 additions and 15935 deletions
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/*
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The MIT License (MIT)
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Copyright (c) 2013-2017 SRS(ossrs)
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Permission is hereby granted, free of charge, to any person obtaining a copy of
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this software and associated documentation files (the "Software"), to deal in
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the Software without restriction, including without limitation the rights to
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use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
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the Software, and to permit persons to whom the Software is furnished to do so,
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subject to the following conditions:
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The above copyright notice and this permission notice shall be included in all
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copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
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FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
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COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
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IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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/**
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* The MIT License (MIT)
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*
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* Copyright (c) 2013-2017 SRS(ossrs)
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy of
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* this software and associated documentation files (the "Software"), to deal in
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* the Software without restriction, including without limitation the rights to
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* use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
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* the Software, and to permit persons to whom the Software is furnished to do so,
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* subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in all
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* copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
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* FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
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* COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
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* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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#ifndef SRS_KERNEL_UTILITY_HPP
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#define SRS_KERNEL_UTILITY_HPP
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/*
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#include <srs_kernel_utility.hpp>
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*/
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#include <srs_core.hpp>
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#include <string>
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@ -120,23 +116,23 @@ extern std::string srs_path_filename(std::string path);
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extern std::string srs_path_filext(std::string path);
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/**
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* whether stream starts with the avc NALU in "AnnexB"
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* from ISO_IEC_14496-10-AVC-2003.pdf, page 211.
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* start code must be "N[00] 00 00 01" where N>=0
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* @param pnb_start_code output the size of start code, must >=3.
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* NULL to ignore.
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*/
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* whether stream starts with the avc NALU in "AnnexB"
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* from ISO_IEC_14496-10-AVC-2003.pdf, page 211.
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* start code must be "N[00] 00 00 01" where N>=0
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* @param pnb_start_code output the size of start code, must >=3.
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* NULL to ignore.
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*/
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extern bool srs_avc_startswith_annexb(SrsBuffer* stream, int* pnb_start_code = NULL);
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/**
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* whether stream starts with the aac ADTS
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* from ISO_IEC_14496-3-AAC-2001.pdf, page 75, 1.A.2.2 ADTS.
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* start code must be '1111 1111 1111'B, that is 0xFFF
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*/
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* whether stream starts with the aac ADTS
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* from ISO_IEC_14496-3-AAC-2001.pdf, page 75, 1.A.2.2 ADTS.
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* start code must be '1111 1111 1111'B, that is 0xFFF
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*/
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extern bool srs_aac_startswith_adts(SrsBuffer* stream);
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/**
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* cacl the crc32 of bytes in buf, for ffmpeg.
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* cacl the crc32 of bytes in buf, for ffmpeg.
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*/
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extern uint32_t srs_crc32_mpegts(const void* buf, int size);
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@ -146,40 +142,40 @@ extern uint32_t srs_crc32_mpegts(const void* buf, int size);
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extern uint32_t srs_crc32_ieee(const void* buf, int size, uint32_t previous = 0);
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/**
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* Decode a base64-encoded string.
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*
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* @param out buffer for decoded data
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* @param in null-terminated input string
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* @param out_size size in bytes of the out buffer, must be at
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* least 3/4 of the length of in
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* @return number of bytes written, or a negative value in case of
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* invalid input
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*/
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* Decode a base64-encoded string.
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*
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* @param out buffer for decoded data
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* @param in null-terminated input string
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* @param out_size size in bytes of the out buffer, must be at
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* least 3/4 of the length of in
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* @return number of bytes written, or a negative value in case of
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* invalid input
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*/
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extern int srs_av_base64_decode(uint8_t* out, const char* in, int out_size);
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/**
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* Encode data to base64 and null-terminate.
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*
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* @param out buffer for encoded data
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* @param out_size size in bytes of the out buffer (including the
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* null terminator), must be at least AV_BASE64_SIZE(in_size)
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* @param in input buffer containing the data to encode
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* @param in_size size in bytes of the in buffer
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* @return out or NULL in case of error
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*/
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* Encode data to base64 and null-terminate.
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*
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* @param out buffer for encoded data
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* @param out_size size in bytes of the out buffer (including the
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* null terminator), must be at least AV_BASE64_SIZE(in_size)
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* @param in input buffer containing the data to encode
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* @param in_size size in bytes of the in buffer
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* @return out or NULL in case of error
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*/
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extern char* srs_av_base64_encode(char* out, int out_size, const uint8_t* in, int in_size);
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/**
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* Calculate the output size needed to base64-encode x bytes to a
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* null-terminated string.
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*/
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#define SRS_AV_BASE64_SIZE(x) (((x)+2) / 3 * 4 + 1)
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#define SRS_AV_BASE64_SIZE(x) (((x)+2) / 3 * 4 + 1)
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/**
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* convert hex string to data.
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* for example, p=config='139056E5A0'
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* output hex to data={0x13, 0x90, 0x56, 0xe5, 0xa0}
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*/
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* convert hex string to data.
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* for example, p=config='139056E5A0'
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* output hex to data={0x13, 0x90, 0x56, 0xe5, 0xa0}
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*/
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extern int ff_hex_to_data(uint8_t* data, const char* p);
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/**
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@ -188,11 +184,7 @@ extern int ff_hex_to_data(uint8_t* data, const char* p);
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* @param nb_cache, the size of cache.
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* @return the size of header. 0 if cache not enough.
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*/
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extern int srs_chunk_header_c0(
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int perfer_cid, uint32_t timestamp, int32_t payload_length,
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int8_t message_type, int32_t stream_id,
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char* cache, int nb_cache
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);
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extern 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);
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/**
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* generate the c3 chunk header for msg.
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@ -200,10 +192,7 @@ extern int srs_chunk_header_c0(
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* @param nb_cache, the size of cache.
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* @return the size of header. 0 if cache not enough.
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*/
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extern int srs_chunk_header_c3(
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int perfer_cid, uint32_t timestamp,
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char* cache, int nb_cache
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);
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extern int srs_chunk_header_c3(int perfer_cid, uint32_t timestamp, char* cache, int nb_cache);
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#endif
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