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Commit8eee769

Browse files
MarcAntoine-Arnaudvalnoel
authored andcommitted
add API to use an external encoder
1 parentb49c7c0 commit8eee769

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11 files changed

+436
-3
lines changed

11 files changed

+436
-3
lines changed

‎app/CMakeLists.txt

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Original file line numberDiff line numberDiff line change
@@ -3,6 +3,7 @@ add_subdirectory(avInfo)
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add_subdirectory(avMeta)
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add_subdirectory(avPlayer)
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add_subdirectory(avProcessor)
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add_subdirectory(customEncoder)
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# Python apps
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add_subdirectory(pyProcessor)

‎app/customEncoder/CMakeLists.txt

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@@ -0,0 +1,24 @@
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### cpp/customEncoder
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# Load custom cmake utilities
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set(CMAKE_MODULE_PATH${PROJECT_SOURCE_DIR}/cmake)
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include(AvTranscoderMacros)
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# Build app
8+
add_executable(custom-encodercustomEncoder.cpp)
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set_target_properties(custom-encoderPROPERTIESVERSION${AVTRANSCODER_VERSION})
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target_link_libraries(custom-encoderavtranscoder-shared)
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# Install app
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if(WIN32)
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set(BINARY_FILES"${CMAKE_CURRENT_BINARY_DIR}/custom-encoder.exe")
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else()
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set(BINARY_FILES"${CMAKE_CURRENT_BINARY_DIR}/custom-encoder""${CMAKE_CURRENT_BINARY_DIR}/custom-encoder-${AVTRANSCODER_VERSION}")
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endif()
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install(
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FILES${BINARY_FILES}
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PERMISSIONSOWNER_EXECUTEOWNER_WRITEOWNER_READGROUP_EXECUTEGROUP_READWORLD_READWORLD_EXECUTE
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DESTINATION"bin/"
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OPTIONAL
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)

‎app/customEncoder/customEncoder.cpp

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@@ -0,0 +1,208 @@
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#include<AvTranscoder/transcoder/Transcoder.hpp>
2+
#include<AvTranscoder/file/OutputFile.hpp>
3+
#include<AvTranscoder/progress/ConsoleProgress.hpp>
4+
5+
#include<iostream>
6+
#include<iomanip>
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#include<vector>
8+
#include<fstream>
9+
#include<sstream>
10+
#include<cstdlib>
11+
12+
voidparseConfigFile(const std::string& configFilename, avtranscoder::Transcoder& transcoder)
13+
{
14+
std::ifstreamconfigFile(configFilename.c_str(), std::ifstream::in);
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16+
std::string line;
17+
while(std::getline(configFile, line))
18+
{
19+
std::istringstreamis_line(line);
20+
std::string filename;
21+
if(std::getline(is_line, filename,'='))
22+
{
23+
std::string streamId;
24+
if(std::getline(is_line, streamId,':'))
25+
{
26+
std::string transcodeProfile;
27+
std::getline(is_line, transcodeProfile);
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29+
std::stringstreamss(streamId);
30+
size_t streamIndex =0;
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char separator ='x';
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std::vector<size_t> channelIndexArray;
33+
ss >> streamIndex;
34+
ss >> separator;
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if(separator =='.')
36+
{
37+
int subStreamIndex = -1;
38+
ss >> subStreamIndex;
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channelIndexArray.push_back(subStreamIndex);
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}
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// generated stream
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if(!filename.length())
44+
transcoder.addGenerateStream(transcodeProfile);
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else
46+
{
47+
avtranscoder::InputStreamDescinputDesc(filename, streamIndex, channelIndexArray);
48+
transcoder.addStream(inputDesc, transcodeProfile);
49+
}
50+
}
51+
}
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}
53+
54+
configFile.close();
55+
}
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57+
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59+
classAvExport CustomCodec
60+
: public avtranscoder::ICodec
61+
{
62+
public:
63+
CustomCodec()
64+
: avtranscoder::ICodec(avtranscoder::eCodecTypeEncoder, AV_CODEC_ID_PCM_S24LE)
65+
{
66+
}
67+
68+
voidopenCodec(){}
69+
voidcloseCodec(){}
70+
71+
std::stringgetCodecName()const {return"Custom Encoder"; };
72+
AVCodecIDgetCodecId()const {return AV_CODEC_ID_PCM_S24LE; }
73+
avtranscoder::ECodecTypegetCodecType()const {return avtranscoder::eCodecTypeEncoder; }
74+
intgetLatency()const {return0; }
75+
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avtranscoder::OptionArraygetOptions() {
77+
std::vector<avtranscoder::Option> options;
78+
return options;
79+
}
80+
};
81+
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classAvExport CustomEncoder
84+
: public avtranscoder::IEncoder
85+
{
86+
public:
87+
CustomEncoder()
88+
: _codec(CustomCodec())
89+
{}
90+
/**
91+
* @brief Setup the encoder
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* @param profile: set encoder parameters from the given profile
93+
* @note Open the encoder.
94+
*/
95+
voidsetupEncoder(const avtranscoder::ProfileLoader::Profile& profile = avtranscoder::ProfileLoader::Profile()) {
96+
return;
97+
};
98+
99+
/**
100+
* @brief Encode a new frame, and get coded frame
101+
* @param sourceFrame: frame that needs to be encoded
102+
* @param codedFrame: output encoded coded data (first frames can be delayed)
103+
* @return status of encoding
104+
* @throw runtime_error if the encoded process failed.
105+
*/
106+
boolencodeFrame(const avtranscoder::IFrame& sourceFrame, avtranscoder::CodedData& codedFrame) {
107+
codedFrame.assign(5760,0);
108+
returntrue;
109+
};
110+
111+
/**
112+
* @brief Get the frames remaining into the encoder
113+
* @param codedFrame: output encoded data
114+
* @return status of encoding
115+
* @throw runtime_error if the encoded process failed.
116+
*/
117+
boolencodeFrame(avtranscoder::CodedData& codedFrame) {
118+
returnfalse;
119+
};
120+
121+
/**
122+
* @brief Get codec used for encoding.
123+
* @return a reference to the codec
124+
*/
125+
avtranscoder::ICodec&getCodec() {
126+
return _codec;
127+
};
128+
129+
private:
130+
CustomCodec _codec;
131+
};
132+
133+
134+
intmain(int argc,char** argv)
135+
{
136+
std::string help;
137+
help +="Usage\n";
138+
help +="\tavprocessor INPUT_FILE_NAME OUTPUT_FILE_NAME [--verbose] [--logFile] [--help]\n";
139+
help +="Command line options\n";
140+
help +="\t--verbose: set log level to AV_LOG_DEBUG\n";
141+
help +="\t--logFile: put log in 'avtranscoder.log' file\n";
142+
help +="\t--help: display this help\n";
143+
144+
// Preload FFmpeg context
145+
avtranscoder::preloadCodecsAndFormats();
146+
avtranscoder::Logger::setLogLevel(AV_LOG_QUIET);
147+
148+
// List command line arguments
149+
std::vector<std::string> arguments;
150+
for(int argument =1; argument < argc; ++argument)
151+
{
152+
arguments.push_back(argv[argument]);
153+
}
154+
for(size_t argument =0; argument < arguments.size(); ++argument)
155+
{
156+
if(arguments.at(argument) =="--help")
157+
{
158+
std::cout << help << std::endl;
159+
return0;
160+
}
161+
elseif(arguments.at(argument) =="--verbose")
162+
{
163+
avtranscoder::Logger::setLogLevel(AV_LOG_DEBUG);
164+
}
165+
elseif(arguments.at(argument) =="--logFile")
166+
{
167+
avtranscoder::Logger::logInFile();
168+
}
169+
}
170+
171+
// Check required arguments
172+
if(argc <3)
173+
{
174+
std::cout <<"avprocessor can rewrap or transcode inputs to create an output media file." << std::endl;
175+
std::cout <<"Use option --help to display help" << std::endl;
176+
return (-1);
177+
}
178+
179+
try
180+
{
181+
std::string output_format ="s24le";
182+
avtranscoder::OutputFileoutputFile(argv[2], output_format);
183+
184+
avtranscoder::Transcodertranscoder(outputFile);
185+
transcoder.setProcessMethod(avtranscoder::eProcessMethodBasedOnStream);
186+
187+
CustomEncoder* customEncoder =new CustomEncoder;
188+
avtranscoder::InputStreamDescinputDescLeft(argv[1],1,0);
189+
avtranscoder::InputStreamDescinputDescRight(argv[1],2,0);
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191+
std::vector<avtranscoder::InputStreamDesc> inputDescriptors;
192+
inputDescriptors.push_back(avtranscoder::InputStreamDesc(argv[1],1,0));
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inputDescriptors.push_back(avtranscoder::InputStreamDesc(argv[1],2,0));
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195+
transcoder.addStream(inputDescriptors, customEncoder);
196+
197+
avtranscoder::ConsoleProgress progress;
198+
transcoder.process(progress);
199+
}
200+
catch(std::exception& e)
201+
{
202+
std::cerr <<"ERROR: during process, an error occured:" << e.what() << std::endl;
203+
}
204+
catch(...)
205+
{
206+
std::cerr <<"ERROR: during process, an unknown error occured" << std::endl;
207+
}
208+
}

‎src/AvTranscoder/codec/ICodec.hpp

Lines changed: 1 addition & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -25,10 +25,10 @@ enum ECodecType
2525
classAvExport ICodec
2626
{
2727
private:
28-
ICodec(const ICodec& iCodec);
2928
ICodec&operator=(const ICodec& iCodec);
3029

3130
public:
31+
ICodec(const ICodec& iCodec);
3232
ICodec(const ECodecType type,const std::string& codecName);
3333
ICodec(const ECodecType type,const AVCodecID codecId);
3434
ICodec(const ECodecType type, AVCodecContext& avCodecContext);

‎src/AvTranscoder/file/IOutputFile.hpp

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@@ -51,6 +51,15 @@ class AvExport IOutputFile
5151
throwstd::logic_error("function is not implemented");
5252
}
5353

54+
/**
55+
* @brief Add a custom output stream
56+
* @param iCodecDesc description of output codec
57+
**/
58+
virtual IOutputStream&addCustomStream(const ICodec& iCodecDesc)
59+
{
60+
throwstd::logic_error("function is not implemented");
61+
}
62+
5463
/**
5564
* @brief Write the header of file (if necessary)
5665
**/

‎src/AvTranscoder/file/OutputFile.cpp

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Original file line numberDiff line numberDiff line change
@@ -88,6 +88,25 @@ IOutputStream& OutputFile::addAudioStream(const AudioCodec& audioDesc)
8888
return *outputStream;
8989
}
9090

91+
IOutputStream&OutputFile::addCustomStream(const ICodec& iCodecDesc)
92+
{
93+
AVStream& stream = _formatContext.addAVStream(iCodecDesc.getAVCodec());
94+
95+
stream.codec->sample_rate =48000;
96+
stream.codec->channels =1;
97+
stream.codec->channel_layout = AV_CH_LAYOUT_MONO;
98+
stream.codec->sample_fmt = AV_SAMPLE_FMT_S32;
99+
stream.codec->frame_size =1920;
100+
101+
// need to set the time_base on the AVCodecContext of the AVStream
102+
av_reduce(&stream.codec->time_base.num, &stream.codec->time_base.den,1,1, INT_MAX);
103+
104+
OutputStream* outputStream =newOutputStream(*this, _formatContext.getNbStreams() -1);
105+
_outputStreams.push_back(outputStream);
106+
107+
return *outputStream;
108+
}
109+
91110
IOutputStream&OutputFile::addDataStream(const DataCodec& dataDesc)
92111
{
93112
_formatContext.addAVStream(dataDesc.getAVCodec());

‎src/AvTranscoder/file/OutputFile.hpp

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Original file line numberDiff line numberDiff line change
@@ -37,6 +37,7 @@ class AvExport OutputFile : public IOutputFile
3737
IOutputStream&addVideoStream(const VideoCodec& videoDesc);
3838
IOutputStream&addAudioStream(const AudioCodec& audioDesc);
3939
IOutputStream&addDataStream(const DataCodec& dataDesc);
40+
IOutputStream&addCustomStream(const ICodec& iCodecDesc);
4041

4142
/**
4243
* @brief Open ressource, write header, and setup specific wrapping options given when call setupWrapping.

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