Add avthumbnail app

Clement Champetier · Clement Champetier · commit efb812041647 · 2015-02-10T14:20:49.000+01:00
avthumbnail creates a thumbnail from an input file at an indicated frame. fix #29
diff --git a/app/CMakeLists.txt b/app/CMakeLists.txt
@@ -2,3 +2,4 @@ add_subdirectory(avInfo)
 add_subdirectory(avMeta)
 add_subdirectory(avPlay)
 add_subdirectory(avProcessor)
+add_subdirectory(avThumbnail)
diff --git a/app/avThumbnail/CMakeLists.txt b/app/avThumbnail/CMakeLists.txt
@@ -0,0 +1,23 @@
+### cpp/avProcessor
+
+# Load custom cmake utilities
+set(CMAKE_MODULE_PATH ${PROJECT_SOURCE_DIR}/cmake)
+include(AvTranscoderMacros)
+
+# Build app
+add_executable(avthumbnail avThumbnail.cpp)
+set_target_properties(avthumbnail PROPERTIES VERSION ${AVTRANSCODER_VERSION})
+target_link_libraries(avthumbnail avtranscoder-shared)
+
+# Install app
+if(WIN32)
+	set(BINARY_FILES "${CMAKE_CURRENT_BINARY_DIR}/avthumbnail.exe")
+else()
+	set(BINARY_FILES "${CMAKE_CURRENT_BINARY_DIR}/avthumbnail" "${CMAKE_CURRENT_BINARY_DIR}/avthumbnail-${AVTRANSCODER_VERSION}")
+endif()
+
+install(
+	FILES ${BINARY_FILES}
+	PERMISSIONS OWNER_EXECUTE OWNER_WRITE OWNER_READ GROUP_EXECUTE GROUP_READ WORLD_READ WORLD_EXECUTE
+	DESTINATION "bin/"
+)
diff --git a/app/avThumbnail/avThumbnail.cpp b/app/avThumbnail/avThumbnail.cpp
@@ -0,0 +1,76 @@
+#include <AvTranscoder/transcoder/Transcoder.hpp>
+#include <AvTranscoder/file/OutputFile.hpp>
+
+static std::string outputFileName = "thumbnail.jpg";
+
+int main( int argc, char** argv )
+{
+	std::string help;
+	help += "Usage\n";
+	help += "\tavthumbnail INPUT_FILE_NAME FRAME [OUTPUT_FILE_NAME] [--help]\n";
+	help += "Command line options\n";
+	help += "\tOUTPUT_FILE_NAME: name of the output file (thumbnail.jpg by default)\n";
+	help += "\t--help: display this help\n";
+
+	// List command line arguments
+	std::vector< std::string > arguments;
+	for( int argument = 1; argument < argc; ++argument )
+	{
+		arguments.push_back( argv[argument] );
+	}
+	for( size_t argument = 0; argument < arguments.size(); ++argument )
+	{
+		if( arguments.at( argument ) == "--help" )
+		{
+			std::cout << help << std::endl;
+			return 0;
+		}
+	}
+	if( argc > 3 )
+	{
+		outputFileName = arguments.at( 2 );
+	}
+
+	// Check required arguments
+	if( argc < 3 )
+	{
+		std::cout << "avthumbnail creates a thumbnail from an input file at an indicated frame." << std::endl;
+		std::cout << "Use option --help to display help" << std::endl; 
+		return( -1 );
+	}
+
+	avtranscoder::setLogLevel( AV_LOG_QUIET );
+	avtranscoder::preloadCodecsAndFormats();
+
+	// input file
+	std::string inputFileName( argv[1] );
+	avtranscoder::InputFile intputFile( inputFileName );
+	intputFile.seekAtFrame( atoi( argv[2] ) );
+
+	// output file
+	avtranscoder::ProfileLoader::Profile formatProfile;
+	formatProfile[ avtranscoder::constants::avProfileIdentificator ] = "thumbnailFormatPreset";
+	formatProfile[ avtranscoder::constants::avProfileIdentificatorHuman ] = "Thumbnail format preset";
+	formatProfile[ avtranscoder::constants::avProfileType ] = avtranscoder::constants::avProfileTypeFormat;
+	formatProfile[ avtranscoder::constants::avProfileFormat ] = "mjpeg";
+	avtranscoder::OutputFile outputFile( outputFileName );
+	outputFile.setProfile( formatProfile );
+
+	// input stream
+	avtranscoder::InputStream inputStream( intputFile, 0 );
+	inputStream.activate();
+
+	// output stream
+	avtranscoder::ProfileLoader profileLoader( true );
+	avtranscoder::StreamTranscoder outputStream( inputStream, outputFile, profileLoader.getProfile( "mjpeg" ) );
+
+	// transcoder
+	avtranscoder::Transcoder transcoder( outputFile );
+	transcoder.add( outputStream );
+
+	// process
+	outputFile.beginWrap();
+	transcoder.preProcessCodecLatency();
+	transcoder.processFrame();
+	outputFile.endWrap();
+}
