kopia lustrzana https://github.com/f4exb/sdrangel
Opus basic encoder
f4exb
rodzic
ea0767f040
commit
ef27776a48
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@ -0,0 +1,52 @@
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############################################################################
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# FindOpus.txt
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# Copyright (C) 2014 Belledonne Communications, Grenoble France
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#
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############################################################################
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#
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# This program is free software; you can redistribute it and/or
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# modify it under the terms of the GNU General Public License
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# as published by the Free Software Foundation; either version 2
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# of the License, or (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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#
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############################################################################
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#
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# - Find the opus include file and library
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#
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# OPUS_FOUND - system has opus
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# OPUS_INCLUDE_DIRS - the opus include directory
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# OPUS_LIBRARIES - The libraries needed to use opus
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find_path(OPUS_INCLUDE_DIRS
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NAMES opus/opus.h
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PATH_SUFFIXES include
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)
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if(OPUS_INCLUDE_DIRS)
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set(HAVE_OPUS_OPUS_H 1)
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endif()
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find_library(OPUS_LIBRARIES NAMES opus)
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if(OPUS_LIBRARIES)
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find_library(LIBM NAMES m)
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if(LIBM)
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list(APPEND OPUS_LIBRARIES ${LIBM})
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endif()
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endif()
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include(FindPackageHandleStandardArgs)
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find_package_handle_standard_args(Opus
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DEFAULT_MSG
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OPUS_INCLUDE_DIRS OPUS_LIBRARIES HAVE_OPUS_OPUS_H
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)
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mark_as_advanced(OPUS_INCLUDE_DIRS OPUS_LIBRARIES HAVE_OPUS_OPUS_H)
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@ -9,6 +9,7 @@ set(sdrbase_SOURCES
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audio/audiofifo.cpp
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audio/audiofilter.cpp
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audio/audiog722.cpp
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audio/audioopus.cpp
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audio/audiooutput.cpp
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audio/audioinput.cpp
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audio/audionetsink.cpp
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@ -104,6 +105,7 @@ set(sdrbase_HEADERS
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audio/audiofilter.h
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audio/audiog722.h
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audio/audiooutput.h
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audio/audioopus.h
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audio/audioinput.h
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audio/audionetsink.h
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@ -224,6 +226,8 @@ set(sdrbase_SOURCES
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${sdrbase_HEADERS}
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)
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find_package(Opus REQUIRED)
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if(FFTW3F_FOUND)
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set(sdrbase_SOURCES
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${sdrbase_SOURCES}
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@ -297,6 +301,7 @@ include_directories(
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${CMAKE_SOURCE_DIR}/qrtplib
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${CMAKE_SOURCE_DIR}/swagger/sdrangel/code/qt5/client
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${Boost_INCLUDE_DIRS}
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${OPUS_INCLUDE_DIRS}
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)
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target_link_libraries(sdrbase
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@ -304,6 +309,7 @@ target_link_libraries(sdrbase
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httpserver
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qrtplib
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swagger
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${OPUS_LIBRARIES}
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)
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if(FFTW3F_FOUND)
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@ -0,0 +1,87 @@
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///////////////////////////////////////////////////////////////////////////////////
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// Copyright (C) 2019 F4EXB //
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// written by Edouard Griffiths //
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// //
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// This program is free software; you can redistribute it and/or modify //
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// it under the terms of the GNU General Public License as published by //
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// the Free Software Foundation as version 3 of the License, or //
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// //
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// This program is distributed in the hope that it will be useful, //
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// but WITHOUT ANY WARRANTY; without even the implied warranty of //
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the //
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// GNU General Public License V3 for more details. //
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// //
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// You should have received a copy of the GNU General Public License //
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// along with this program. If not, see <http://www.gnu.org/licenses/>. //
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///////////////////////////////////////////////////////////////////////////////////
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#include "opus/opus.h"
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#include <QDebug>
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#include "audioopus.h"
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AudioOpus::AudioOpus() :
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m_encoderState(0),
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m_encoderOK(false)
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{
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qDebug("AudioOpus::AudioOpus: libopus version %s", opus_get_version_string());
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}
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AudioOpus::~AudioOpus()
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{
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if (m_encoderState) {
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opus_encoder_destroy(m_encoderState);
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}
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}
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void AudioOpus::setEncoder(int32_t fs, int nChannels)
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{
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int error;
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bool newInstance = true;
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if (m_encoderState)
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{
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error = opus_encoder_init(m_encoderState, fs, nChannels, OPUS_APPLICATION_AUDIO);
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newInstance = false;
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}
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else
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{
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m_encoderState = opus_encoder_create(fs, nChannels, OPUS_APPLICATION_AUDIO, &error);
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}
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if (error != OPUS_OK)
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{
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qWarning("AudioOpus::setEncoder: %s error: %s", newInstance ? "create" : "init", opus_strerror(error));
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m_encoderOK = false;
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return;
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}
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else
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{
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qDebug("AudioOpus::setEncoder: fs: %d, nChannels: %d", fs, nChannels);
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m_encoderOK = true;
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}
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error = opus_encoder_ctl(m_encoderState, OPUS_SET_BITRATE(m_bitrate));
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if (error != OPUS_OK)
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{
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qWarning("AudioOpus::setEncoder: set bitrate error: %s", opus_strerror(error));
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m_encoderOK = false;
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return;
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}
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}
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int AudioOpus::encode(int frameSize, int16_t *in, uint8_t *out)
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{
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int nbBytes = opus_encode(m_encoderState, in, frameSize, out, m_maxPacketSize);
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if (nbBytes < 0)
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{
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qWarning("AudioOpus::encode failed: %s\n", opus_strerror(nbBytes));
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return 0;
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}
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else
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{
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return nbBytes;
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}
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}
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@ -0,0 +1,43 @@
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///////////////////////////////////////////////////////////////////////////////////
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// Copyright (C) 2019 F4EXB //
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// written by Edouard Griffiths //
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// //
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// This program is free software; you can redistribute it and/or modify //
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// it under the terms of the GNU General Public License as published by //
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// the Free Software Foundation as version 3 of the License, or //
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// //
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// This program is distributed in the hope that it will be useful, //
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// but WITHOUT ANY WARRANTY; without even the implied warranty of //
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the //
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// GNU General Public License V3 for more details. //
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// //
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// You should have received a copy of the GNU General Public License //
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// along with this program. If not, see <http://www.gnu.org/licenses/>. //
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///////////////////////////////////////////////////////////////////////////////////
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#ifndef SDRBASE_AUDIO_AUDIOOPUS_H_
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#define SDRBASE_AUDIO_AUDIOOPUS_H_
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#include <stdint.h>
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#include "export.h"
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class OpusEncoder;
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class SDRBASE_API AudioOpus
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{
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public:
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AudioOpus();
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~AudioOpus();
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void setEncoder(int32_t fs, int nChannels);
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int encode(int frameSize, int16_t *in, uint8_t *out);
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static const int m_bitrate = 64000; //!< Fixed 64kb/s bitrate (8kB/s)
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static const int m_maxPacketSize = 3*1276;
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private:
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OpusEncoder *m_encoderState;
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bool m_encoderOK;
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};
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#endif /* SDRBASE_AUDIO_AUDIOOPUS_H_ */
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@ -46,7 +46,7 @@ def getInputOptions():
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parser.add_option("--audio-address", dest="audio_address", help="Audio: UDP destination address", metavar="IP_ADDRESS", type="string")
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parser.add_option("--audio-port", dest="audio_port", help="Audio: UDP destination port", metavar="IP_PORT", type="int")
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parser.add_option("--audio-channels", dest="audio_channels", help="Audio: UDP mode (0: L only 1: R only 2: L+R mono 3: LR stereo)", metavar="ENUM_INT", type="int")
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parser.add_option("--audio-codec", dest="audio_codec", help="Audio: codec to use for UDP (0: L16, 1: L8, 2: PCMA, 3: PCMU)", metavar="ENUM_INT", type="int")
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parser.add_option("--audio-codec", dest="audio_codec", help="Audio: codec to use for UDP (0: L16, 1: L8, 2: PCMA, 3: PCMU, 4: G722)", metavar="ENUM_INT", type="int")
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parser.add_option("--audio-decim", dest="audio_decim", help="Audio. decimation to apply for UDP (1 to 6)", metavar="INT", type="int")
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parser.add_option("--baud-rate", dest="baud_rate", help="DSD: baud rate in Baud", metavar="BAUD", type="int", default=4800)
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parser.add_option("--fm-dev", dest="fm_deviation", help="DSD: expected FM deviation", metavar="FREQ", type="int", default=5400)
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