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author | Matthias P. Braendli <matthias.braendli@mpb.li> | 2016-10-30 15:29:31 +0100 |
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committer | Matthias P. Braendli <matthias.braendli@mpb.li> | 2016-10-30 15:29:31 +0100 |
commit | 128768f7fd719eb455a946a0f716d7128b4ded63 (patch) | |
tree | dfa03ccfed3f175182b04fd84bd59aacd623ac54 /src/dabInputZmq.h | |
parent | 555121f96e769fdeb9529e7381560d8bbb6e2713 (diff) | |
download | dabmux-128768f7fd719eb455a946a0f716d7128b4ded63.tar.gz dabmux-128768f7fd719eb455a946a0f716d7128b4ded63.tar.bz2 dabmux-128768f7fd719eb455a946a0f716d7128b4ded63.zip |
Start reworking inputs, break all but Prbs and ZMQ
Diffstat (limited to 'src/dabInputZmq.h')
-rw-r--r-- | src/dabInputZmq.h | 276 |
1 files changed, 0 insertions, 276 deletions
diff --git a/src/dabInputZmq.h b/src/dabInputZmq.h deleted file mode 100644 index 351fb07..0000000 --- a/src/dabInputZmq.h +++ /dev/null @@ -1,276 +0,0 @@ -/* - Copyright (C) 2009 Her Majesty the Queen in Right of Canada (Communications - Research Center Canada) - - Copyright (C) 2013, 2014 Matthias P. Braendli - http://www.opendigitalradio.org - - ZeroMQ input. see www.zeromq.org for more info - - For the AAC+ input, each zeromq message must contain one superframe, - or one zmq_frame_header_t followed by a superframe. - - For the MPEG input, each zeromq message must contain one frame. - - Encryption is provided by zmq_curve, see the corresponding manpage. - - From the ZeroMQ manpage 'zmq': - - The 0MQ lightweight messaging kernel is a library which extends the standard - socket interfaces with features traditionally provided by specialised - messaging middleware products. 0MQ sockets provide an abstraction of - asynchronous message queues, multiple messaging patterns, message filtering - (subscriptions), seamless access to multiple transport protocols and more. - */ -/* - This file is part of ODR-DabMux. - - It defines a ZeroMQ input for dabplus data. - - ODR-DabMux is free software: you can redistribute it and/or modify - it under the terms of the GNU General Public License as - published by the Free Software Foundation, either version 3 of the - License, or (at your option) any later version. - - ODR-DabMux 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 General Public License for more details. - - You should have received a copy of the GNU General Public License - along with ODR-DabMux. If not, see <http://www.gnu.org/licenses/>. - */ - -#ifndef DAB_INPUT_ZMQ_H -#define DAB_INPUT_ZMQ_H - -#ifdef HAVE_CONFIG_H -# include "config.h" -#endif - -#ifdef HAVE_INPUT_ZEROMQ - -#include <list> -#include <string> -#include <stdint.h> -#include "zmq.hpp" -#include "dabInput.h" -#include "ManagementServer.h" - -/* The frame_buffer contains DAB logical frames as defined in - * TS 102 563, section 6. - * Five elements of this buffer make one AAC superframe (120ms audio) - */ - -// Number of elements to prebuffer before starting the pipeline -#define INPUT_ZMQ_DEF_PREBUFFERING (5*4) // 480ms - -// Default frame_buffer size in number of elements -#define INPUT_ZMQ_DEF_BUFFER_SIZE (5*8) // 960ms - -// Minimum frame_buffer size in number of elements -// This is one AAC superframe, but you probably don't want to -// go that low anyway. -#define INPUT_ZMQ_MIN_BUFFER_SIZE (5*1) // 120ms - -// Maximum frame_buffer size in number of elements -// One minute is clearly way over what everybody would -// want. -#define INPUT_ZMQ_MAX_BUFFER_SIZE (5*500) // 60s - -/* The ZeroMQ Curve key is 40 bytes long in Z85 representation - * - * But we need to store it as zero-terminated string. - */ -#define CURVE_KEYLEN 40 - -/* helper to invalidate a key */ -#define INVALIDATE_KEY(k) memset(k, 0, CURVE_KEYLEN+1) - -/* Verification for key validity */ -#define KEY_VALID(k) (k[0] != '\0') - -/* Read a key from file into key - * - * Returns 0 on success, negative value on failure - */ -int readkey(std::string& keyfile, char* key); - -struct dab_input_zmq_config_t -{ - /* The size of the internal buffer, measured in number - * of elements. - * - * Each element corresponds to five frames, - * or one AAC superframe. - */ - size_t buffer_size; - - /* The amount of prebuffering to do before we start streaming - * - * Same units as buffer_size - */ - size_t prebuffering; - - /* Whether to enforce encryption or not - */ - bool enable_encryption; - - /* Full path to file containing public key. - */ - std::string curve_public_keyfile; - - /* Full path to file containing secret key. - */ - std::string curve_secret_keyfile; - - /* Full path to file containing encoder public key. - */ - std::string curve_encoder_keyfile; -}; - -#define ZMQ_ENCODER_FDK 1 -#define ZMQ_ENCODER_TOOLAME 2 - -/* This defines the on-wire representation of a ZMQ message header. - * - * The data follows right after this header */ -struct zmq_frame_header_t -{ - uint16_t version; // we support version=1 now - uint16_t encoder; // see ZMQ_ENCODER_XYZ - - /* length of the 'data' field */ - uint32_t datasize; - - /* Audio level, peak, linear PCM */ - int16_t audiolevel_left; - int16_t audiolevel_right; - - /* Data follows this header */ -} __attribute__ ((packed)); - -/* The expected frame size incl data of the given frame */ -#define ZMQ_FRAME_SIZE(f) (sizeof(zmq_frame_header_t) + f->datasize) - -#define ZMQ_FRAME_DATA(f) ( ((uint8_t*)f)+sizeof(zmq_frame_header_t) ) - - -class DabInputZmqBase : public DabInputBase, public RemoteControllable { - public: - DabInputZmqBase(const std::string name, - dab_input_zmq_config_t config) - : RemoteControllable(name), - m_zmq_context(1), - m_zmq_sock(m_zmq_context, ZMQ_SUB), - m_zmq_sock_bound_to(""), - m_bitrate(0), - m_enable_input(true), - m_config(config), - m_stats(m_name), - m_prebuf_current(config.prebuffering) { - RC_ADD_PARAMETER(enable, - "If the input is enabled. Set to zero to empty the buffer."); - - RC_ADD_PARAMETER(encryption, - "If encryption is enabled or disabled [1 or 0]." - " If 1 is written, the keys are reloaded."); - - RC_ADD_PARAMETER(publickey, - "The multiplexer's public key file."); - - RC_ADD_PARAMETER(secretkey, - "The multiplexer's secret key file."); - - RC_ADD_PARAMETER(encoderkey, - "The encoder's public key file."); - - /* Set all keys to zero */ - INVALIDATE_KEY(m_curve_public_key); - INVALIDATE_KEY(m_curve_secret_key); - INVALIDATE_KEY(m_curve_encoder_key); - } - - virtual int open(const std::string& inputUri); - virtual int readFrame(void* buffer, int size); - virtual int setBitrate(int bitrate); - virtual int close(); - - /* Remote control */ - virtual void set_parameter(const std::string& parameter, - const std::string& value); - - /* Getting a parameter always returns a string. */ - virtual const std::string get_parameter(const std::string& parameter) const; - - protected: - virtual int readFromSocket(size_t framesize) = 0; - - virtual void rebind(); - - zmq::context_t m_zmq_context; - zmq::socket_t m_zmq_sock; // handle for the zmq socket - - /* If the socket is bound, this saves the endpoint, - * otherwise, it's an empty string - */ - std::string m_zmq_sock_bound_to; - int m_bitrate; - - /* set this to zero to empty the input buffer */ - bool m_enable_input; - - /* stores elements of type char[<superframesize>] */ - std::list<uint8_t*> m_frame_buffer; - - dab_input_zmq_config_t m_config; - - /* Key management, keys need to be zero-terminated */ - char m_curve_public_key[CURVE_KEYLEN+1]; - char m_curve_secret_key[CURVE_KEYLEN+1]; - char m_curve_encoder_key[CURVE_KEYLEN+1]; - - std::string m_inputUri; - - InputStat m_stats; - - private: - size_t m_prebuf_current; -}; - -class DabInputZmqMPEG : public DabInputZmqBase { - public: - DabInputZmqMPEG(const std::string name, - dab_input_zmq_config_t config) - : DabInputZmqBase(name, config) { - RC_ADD_PARAMETER(buffer, - "Size of the input buffer [mpeg frames]"); - - RC_ADD_PARAMETER(prebuffering, - "Min buffer level before streaming starts [mpeg frames]"); - } - - private: - virtual int readFromSocket(size_t framesize); -}; - -class DabInputZmqAAC : public DabInputZmqBase { - public: - DabInputZmqAAC(const std::string name, - dab_input_zmq_config_t config) - : DabInputZmqBase(name, config) { - RC_ADD_PARAMETER(buffer, - "Size of the input buffer [aac superframes]"); - - RC_ADD_PARAMETER(prebuffering, - "Min buffer level before streaming starts [aac superframes]"); - } - - private: - virtual int readFromSocket(size_t framesize); -}; - -#endif // HAVE_INPUT_ZMQ - -#endif // DAB_INPUT_ZMQ_H - |