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MarcAntoine-ArnaudMarcAntoine-Arnaud
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‎SConstruct

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import os
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import ConfigParser
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config = ConfigParser.RawConfigParser()
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config.read( [
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'scons.cfg',
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] )
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javaInclude = config.get( 'JAVA', 'inc' ).split(':')
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pyInclude = config.get( 'PYTHON', 'inc' ).split(':')
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libavInclude = config.get( 'LIBAV', 'inc' ).split(':')
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libavLibDir = config.get( 'LIBAV', 'libdir' ).split(':')
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env = Environment().Clone()
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envJava = Environment().Clone()
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envPy = Environment().Clone()
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# C++ environment
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env.Append(
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CPPPATH = [
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libavInclude,
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"src",
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],
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CXXFLAGS = [
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'-Wall',
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],
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LIBPATH = [
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libavLibDir,
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"src",
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],
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)
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# Java environment
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envJava.Replace(
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CPPPATH = [
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javaInclude,
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libavInclude,
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".",
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],
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SWIGCXXFILESUFFIX= '_wrapJava$CXXFILESUFFIX',
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CXXFLAGS = [
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'-Wall',
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],
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SWIGFLAGS = [
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'-java',
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'-c++',
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'-fcompact',
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],
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LINKFLAGS = [
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],
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)
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envJava.Append( SWIGPATH = envJava['CPPPATH'] )
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# Python environment
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envPy.Replace(
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CPPPATH = [
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pyInclude,
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libavInclude,
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".",
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],
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SWIGCXXFILESUFFIX= '_wrapPython$CXXFILESUFFIX',
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SHLIBPREFIX= '_',
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CXXFLAGS = [
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'-std=gnu++0x',
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'-Wall',
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],
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SWIGFLAGS = [
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'-python',
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'-c++',
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'-fcompact',
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],
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LINKFLAGS = [
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],
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)
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envPy.Append( SWIGPATH = envPy['CPPPATH'] )
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Export( "env" )
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Export( "envJava" )
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Export( "envPy" )
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VariantDir( 'build/lib', 'src', duplicate = 0 )
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SConscript( 'build/lib/SConscript' )

‎app/avTranscoder.cpp

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#include <iostream>
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#include <Media.hpp>
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#include <InputStream.hpp>
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#include <InputStreamAudio.hpp>
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#include <InputStreamVideo.hpp>
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#include <OutputStream.hpp>
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#include <OutputStreamAudio.hpp>
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#include <OutputStreamVideo.hpp>
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#include <OutputFile.hpp>
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int main( int argc, char** argv )
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{
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using namespace avtranscoder;
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if( argc != 2 )
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{
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std::cout << "av++ require a media filename" << std::endl;
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return( -1 );
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}
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std::cout << "start ..." << std::endl;
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// a simply metadata getter
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Media input( argv[1] );
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input.analyse();
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std::cout << "format name : " << input.getProperties().formatName << std::endl;
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std::cout << "format long name : " << input.getProperties().formatLongName << std::endl;
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std::cout << "start time : " << input.getProperties().startTime << std::endl;
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std::cout << "duration : " << input.getProperties().duration << std::endl;
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std::cout << "bitrate : " << input.getProperties().bitRate << std::endl;
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std::cout << "number of streams : " << input.getProperties().streamsCount << std::endl;
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std::cout << "number of video streams : " << input.getProperties().videoStreams.size() << std::endl;
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std::cout << "number of audio streams : " << input.getProperties().audioStreams.size() << std::endl;
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for( size_t videoStreamIndex = 0; videoStreamIndex < input.getProperties().videoStreams.size(); ++videoStreamIndex )
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{
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std::cout << "---------- Video stream " << videoStreamIndex << " ----------" << std::endl;
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std::cout << "codec name : " << input.getProperties().videoStreams.at(videoStreamIndex).codecName << std::endl;
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std::cout << "codec long name : " << input.getProperties().videoStreams.at(videoStreamIndex).codecLongName << std::endl;
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std::cout << "profile name : " << input.getProperties().videoStreams.at(videoStreamIndex).profileName << std::endl;
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std::cout << "profile : " << input.getProperties().videoStreams.at(videoStreamIndex).profile << std::endl;
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std::cout << "level : " << input.getProperties().videoStreams.at(videoStreamIndex).level << std::endl;
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std::cout << "width : " << input.getProperties().videoStreams.at(videoStreamIndex).width << std::endl;
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std::cout << "height : " << input.getProperties().videoStreams.at(videoStreamIndex).height << std::endl;
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std::cout << "pixel aspect ratio : " << input.getProperties().videoStreams.at(videoStreamIndex).sar.num << "/" <<
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input.getProperties().videoStreams.at(videoStreamIndex).sar.den << std::endl;
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std::cout << "display aspect ratio : " << input.getProperties().videoStreams.at(videoStreamIndex).dar.num << "/" <<
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input.getProperties().videoStreams.at(videoStreamIndex).dar.den << std::endl;
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std::cout << "gop : ";
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for( size_t frameIndex = 0; frameIndex < input.getProperties().videoStreams.at(videoStreamIndex).gopStructure.size(); ++frameIndex )
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{
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std::cout << input.getProperties().videoStreams.at(videoStreamIndex).gopStructure.at( frameIndex ).first;
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std::cout << ( input.getProperties().videoStreams.at(videoStreamIndex).gopStructure.at( frameIndex ).second ? "*" : " " );
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}
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std::cout << std::endl;
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}
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// init video decoders
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InputStreamVideo isVideo; // take the first video stream per default
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if( !isVideo.setup( argv[1], 0 ) )
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{
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std::cout << "error during initialising video input reader" << std::endl;
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return( -1 );
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}
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std::cout << "Input Video Stream Properties " << std::endl;
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std::cout << "size " << isVideo.getWidth() << "x" << isVideo.getHeight() << std::endl;
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std::cout << "components " << isVideo.getComponents() << std::endl;
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std::cout << "bit depth " << isVideo.getBitDepth() << std::endl;
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//dVideo.set( key, value );
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// same as
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//DecoderVideo dVideo( "inputFilename.mov", 1 );
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// init audio decoders
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InputStreamAudio isAudioLeft ( "inputFilename.wav" ); // take the first audio stream per default
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InputStreamAudio isAudioRight( "inputFilename.wav", 2 );
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// init video & audio encoders
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OutputStreamVideo osVideo;
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osVideo.setWidth( isVideo.getWidth() );
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osVideo.setHeight( isVideo.getHeight() );
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osVideo.setComponents( isVideo.getComponents() );
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osVideo.setBitDepth( isVideo.getBitDepth() );
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//eVideo.set( "mv_method", "me_hex" );
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if( !osVideo.setup( ) )
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{
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std::cout << "error during initialising video output stream" << std::endl;
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return( -1 );
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}
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OutputStreamAudio osAudioLeft ( ); // "AudioStreamEncoder" / "AudioOutputStream" ?
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OutputStreamAudio osAudioRight( );
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OutputStreamAudio osAudioLfe ( );
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// setup wrapper
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OutputFile of( "codedFilename.mxf" ); // "Format" ? to keep libav naming
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if( ! of.setup() )
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{
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std::cout << "error during setup output file" << std::endl;
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return( -1 );
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}
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if( ! of.addVideoStream() )
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{
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std::cout << "error during adding output video stream" << std::endl;
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return( -1 );
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}
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/*of.addAudioStream();
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of.addAudioStream();
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of.addAudioStream();
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of.addAudioStream();*/
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/*eVideoLeft = wrapper.createVideoEncoder( );
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eVideoRight = wrapper.createVideoEncoder( dVideo );
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eAudioLeft = wrapper.createAudioEncoder( 2 );
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wrapper.createAudioEncoder( eAudioLeft, 2 );*/
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// Encodage/transcodage
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std::vector<unsigned char> frameBuffer;
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std::vector<unsigned char> sourceImage( isVideo.getWidth() * isVideo.getHeight() * 3, 120 );
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std::vector<unsigned char> codedImage;
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for( size_t count = 0; count < 10; ++count )
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{
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isVideo.readNextFrame( frameBuffer );
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osVideo.encodeFrame( frameBuffer, codedImage );
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//std::cout << "decoded size " << frameBuffer.size() << " encode frame " << count << " size " << codedImage.size() << std::endl;
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of.wrap( codedImage, 0 );
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}
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//for( size_t frame : dVideo.framesCount() )
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{
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// read & decode source image,
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// send it to encoder which wraps it automatically
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//eVideo.encode( /* raw data */ dVideo.readNextFrame() );
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//eVideo.write()
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// also to access to decoded data image
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//dVideo.getDataFrame();
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//wrapper.write( /* char */ myRawData, streamIndex );
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}
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//eAudioLeft.encode( );
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std::cout << "end ..." << std::endl;
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// TESTS
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// audio -> audio
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// video -> video
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// Audio + video -> Audio + video
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// Audio // Video -> Audio + video
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// Audio * N // Video -> Audio *N + video
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// Audio * N // Video * N -> Audio *N + video * N
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}

‎src/SConscript

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Import( "env" )
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Import( "envJava" )
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Import( "envPy" )
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avTranscoder = env.SharedLibrary(
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'avTranscoder',
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Glob( 'avTranscoder/*.cpp' ),
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LIBS = [
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'libavcodec'
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]
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)
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jAvTranscoder = envJava.SharedLibrary(
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'javTranscoder',
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[
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'avTranscoder/avTranscoder.i'
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],
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LIBS=[ avTranscoder ],
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)
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pyAvTranscoder = envPy.SharedLibrary(
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'avTranscoder',
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[
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'avTranscoder/avTranscoder.i'
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],
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LIBS=[ avTranscoder ],
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)

‎src/avTranscoder/InputStream.cpp

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#include "InputStream.hpp"

‎src/avTranscoder/InputStream.hpp

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#ifndef _AV_TRANSCODER_INPUT_STREAM_HPP_
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#define _AV_TRANSCODER_INPUT_STREAM_HPP_
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#include <string>
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namespace avtranscoder
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{
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class InputStream
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{
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public:
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InputStream( const std::string& filename = "", size_t streamIndex = 0 )
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{};
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private:
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};
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}
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#endif

‎src/avTranscoder/InputStreamAudio.cpp

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#include "InputStreamAudio.hpp"

‎src/avTranscoder/InputStreamAudio.hpp

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#ifndef _AV_TRANSCODER_INPUT_STREAM_AUDIO_HPP_
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#define _AV_TRANSCODER_INPUT_STREAM_AUDIO_HPP_
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#include "InputStream.hpp"
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namespace avtranscoder
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{
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class InputStreamAudio : InputStream
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{
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public:
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InputStreamAudio( const std::string& filename = "", const size_t streamIndex = 0 )
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{};
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private:
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};
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}
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#endif

‎src/avTranscoder/InputStreamData.cpp

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#include "InputStreamData.hpp"

‎src/avTranscoder/InputStreamData.hpp

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#ifndef _AV_TRANSCODER_INPUT_STREAM_DATA_HPP_
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#define _AV_TRANSCODER_INPUT_STREAM_DATA_HPP_
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#include "InputStream.hpp"
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namespace avtranscoder
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{
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class InputStreamData : InputStream
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{
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public:
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InputStreamData(){};
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private:
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};
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}
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#endif

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