// Detect type of input file and open it if recognized. Routine
// based on the av_open_input_file() libavformat function.
int ufile_fopen_input(AVFormatContext **ic_ptr, const wxString &name)
{
wxFileName f(name);
AVIOContext *pb = NULL;
int err;
// Open the file to prepare for probing
if ((err = ufile_fopen(&pb, name, AVIO_FLAG_READ)) < 0) {
goto fail;
}
*ic_ptr = avformat_alloc_context();
(*ic_ptr)->pb = pb;
// And finally, attempt to associate an input stream with the file
err = avformat_open_input(ic_ptr, OSINPUT(name), NULL, NULL);
if (err) {
goto fail;
}
return 0;
fail:
if (pb) {
ufile_close(pb);
}
*ic_ptr = NULL;
return err;
}
bool FLACImportFileHandle::Init()
{
#ifdef LEGACY_FLAC
bool success = mFile->set_filename(OSINPUT(mFilename));
if (!success) {
return false;
}
mFile->set_metadata_respond(FLAC__METADATA_TYPE_STREAMINFO);
mFile->set_metadata_respond(FLAC__METADATA_TYPE_VORBIS_COMMENT);
FLAC::Decoder::File::State state = mFile->init();
if (state != FLAC__FILE_DECODER_OK) {
return false;
}
#else
if (!mHandle.Open(mFilename, wxT("rb"))) {
return false;
}
// Even though there is an init() method that takes a filename, use the one that
// takes a file handle because wxWidgets can open a file with a Unicode name and
// libflac can't (under Windows).
//
// Responsibility for closing the file is passed to libflac.
// (it happens when mFile->finish() is called)
bool result = mFile->init(mHandle.fp())?true:false;
mHandle.Detach();
if (result != FLAC__STREAM_DECODER_INIT_STATUS_OK) {
return false;
}
#endif
mFile->process_until_end_of_metadata();
#ifdef LEGACY_FLAC
state = mFile->get_state();
if (state != FLAC__FILE_DECODER_OK) {
return false;
}
#else
// not necessary to check state, error callback will catch errors, but here's how:
if (mFile->get_state() > FLAC__STREAM_DECODER_READ_FRAME) {
return false;
}
#endif
if (!mFile->is_valid() || mFile->get_was_error()) {
// This probably is not a FLAC file at all
return false;
}
return true;
}
//
// Returns the full path of program module (.exe, .dll, .so, .dylib) containing address
//
wxString FileNames::PathFromAddr(void *addr)
{
wxFileName name;
#if defined(__WXMAC__) || defined(__WXGTK__)
Dl_info info;
if (dladdr(addr, &info)) {
char realname[PLATFORM_MAX_PATH + 1];
int len;
name = LAT1CTOWX(info.dli_fname);
len = readlink(OSINPUT(name.GetFullPath()), realname, PLATFORM_MAX_PATH);
if (len > 0) {
realname[len] = 0;
name.SetFullName(LAT1CTOWX(realname));
}
}
#elif defined(__WXMSW__) && defined(_UNICODE)
// The GetModuleHandlEx() function did not appear until Windows XP and
// GetModuleFileName() did appear until Windows 2000, so we have to
// check for them at runtime.
typedef BOOL (WINAPI *getmodulehandleex)(DWORD dwFlags, LPCWSTR lpModuleName, HMODULE* phModule);
typedef DWORD (WINAPI *getmodulefilename)(HMODULE hModule, LPWCH lpFilename, DWORD nSize);
getmodulehandleex gmhe =
(getmodulehandleex) GetProcAddress(GetModuleHandle(TEXT("kernel32.dll")),
"GetModuleHandleExW");
getmodulefilename gmfn =
(getmodulefilename) GetProcAddress(GetModuleHandle(TEXT("kernel32.dll")),
"GetModuleFileNameW");
if (gmhe != NULL && gmfn != NULL) {
HMODULE module;
if (gmhe(GET_MODULE_HANDLE_EX_FLAG_FROM_ADDRESS | GET_MODULE_HANDLE_EX_FLAG_UNCHANGED_REFCOUNT,
(LPTSTR) addr,
&module)) {
TCHAR path[MAX_PATH];
DWORD nSize;
nSize = gmfn(module, path, MAX_PATH);
if (nSize && nSize < MAX_PATH) {
name = LAT1CTOWX(path);
}
}
}
#endif
return name.GetFullPath();
}
bool FLACImportFileHandle::Init()
{
#ifdef EXPERIMENTAL_OD_FLAC
mDecoderTask=new ODDecodeFlacTask;
ODFlacDecoder* odDecoder = (ODFlacDecoder*)mDecoderTask->CreateFileDecoder(mFilename);
if(!odDecoder || !odDecoder->ReadHeader())
{
//DELETE the task only if it failed to read - otherwise the OD man takes care of it.
delete mDecoderTask;
return false;
}
//copy the meta data over to the class
mSampleRate=odDecoder->mSampleRate;
mNumChannels=odDecoder->mNumChannels;
mBitsPerSample=odDecoder->mBitsPerSample;
mNumSamples=odDecoder->mNumSamples;
mBitsPerSample=odDecoder->mBitsPerSample;
mFormat=odDecoder->mFormat;
mStreamInfoDone=true;
return true;
#endif
#ifdef LEGACY_FLAC
bool success = mFile->set_filename(OSINPUT(mFilename));
if (!success) {
return false;
}
mFile->set_metadata_respond(FLAC__METADATA_TYPE_STREAMINFO);
mFile->set_metadata_respond(FLAC__METADATA_TYPE_VORBIS_COMMENT);
FLAC::Decoder::File::State state = mFile->init();
if (state != FLAC__FILE_DECODER_OK) {
return false;
}
#else
if (!mHandle.Open(mFilename, wxT("rb"))) {
return false;
}
// Even though there is an init() method that takes a filename, use the one that
// takes a file handle because wxWidgets can open a file with a Unicode name and
// libflac can't (under Windows).
//
// Responsibility for closing the file is passed to libflac.
// (it happens when mFile->finish() is called)
bool result = mFile->init(mHandle.fp())?true:false;
mHandle.Detach();
if (result != FLAC__STREAM_DECODER_INIT_STATUS_OK) {
return false;
}
#endif
mFile->process_until_end_of_metadata();
#ifdef LEGACY_FLAC
state = mFile->get_state();
if (state != FLAC__FILE_DECODER_OK) {
return false;
}
#else
// not necessary to check state, error callback will catch errors, but here's how:
if (mFile->get_state() > FLAC__STREAM_DECODER_READ_FRAME) {
return false;
}
#endif
if (!mFile->is_valid() || mFile->get_was_error()) {
// This probably is not a FLAC file at all
return false;
}
return true;
}
bool ExportFFmpeg::Init(const char *shortname, AudacityProject *project, Tags *metadata)
{
int err;
//FFmpegLibsInst->LoadLibs(NULL,true); //Loaded at startup or from Prefs now
if (!FFmpegLibsInst->ValidLibsLoaded()) return false;
FFmpegLibsInst->av_log_set_callback(av_log_wx_callback);
AVFormatParameters fpOutFile;
// See if libavformat has modules that can write our output format. If so, mEncFormatDesc
// will describe the functions used to write the format (used internally by libavformat)
// and the default video/audio codecs that the format uses.
if ((mEncFormatDesc = FFmpegLibsInst->guess_format(shortname, OSINPUT(mName), NULL)) == NULL)
{
wxLogMessage(wxT("FFmpeg : ERROR - Can't determine format description for file \"%s\"."), mName.c_str());
return false;
}
// mEncFormatCtx is used by libavformat to carry around context data re our output file.
if ((mEncFormatCtx = FFmpegLibsInst->av_alloc_format_context()) == NULL)
{
wxLogMessage(wxT("FFmpeg : ERROR - Can't allocate output format context."));
return false;
}
// Initialise the output format context.
mEncFormatCtx->oformat = mEncFormatDesc;
memcpy(mEncFormatCtx->filename, OSINPUT(mName), strlen(OSINPUT(mName))+1);
// At the moment Audacity can export only one audio stream
if ((mEncAudioStream = FFmpegLibsInst->av_new_stream(mEncFormatCtx, 1)) == NULL)
{
wxLogMessage(wxT("FFmpeg : ERROR - Can't add audio stream to output file \"%s\"."), mName.c_str());
return false;
}
mEncAudioStream->id = 0;
mEncFormatCtx->timestamp = 0;
// Open the output file.
if (!(mEncFormatDesc->flags & AVFMT_NOFILE))
{
if ((err = ufile_fopen(&mEncFormatCtx->pb, mName, URL_WRONLY)) < 0)
{
wxLogMessage(wxT("FFmpeg : ERROR - Can't open output file \"%s\" to write. Error code is %d."), mName.c_str(),err);
return false;
}
}
// Set default parameters on the format context.
memset(&fpOutFile, 0, sizeof(AVFormatParameters));
if ((err = FFmpegLibsInst->av_set_parameters(mEncFormatCtx, &fpOutFile)) < 0)
{
wxLogMessage(wxT("FFmpeg : ERROR - Can't set output parameters for output file \"%s\". Error code is %d."), mName.c_str(),err);
return false;
}
// I have no idea what is this
mEncFormatCtx->preload = (int)(0.5 * AV_TIME_BASE);
mEncFormatCtx->max_delay = (int)(0.7 * AV_TIME_BASE);
// Open the audio stream's codec and initialise any stream related data.
if (!InitCodecs(project))
return false;
if (metadata == NULL) metadata = project->GetTags();
// Add metadata BEFORE writing the header.
// At the moment that works with ffmpeg-git and ffmpeg-0.5 for MP4.
if (ExportFFmpegOptions::fmts[mSubFormat].canmetadata)
{
mSupportsUTF8 = ExportFFmpegOptions::fmts[mSubFormat].canutf8;
AddTags(metadata);
}
// Write headers to the output file.
if ((err = FFmpegLibsInst->av_write_header(mEncFormatCtx)) < 0)
{
wxLogMessage(wxT("FFmpeg : ERROR - Can't write headers to output file \"%s\". Error code is %d."), mName.c_str(),err);
return false;
}
return true;
}
bool ExportFFmpeg::Init(const char *shortname, AudacityProject *project, const Tags *metadata, int subformat)
{
int err;
//FFmpegLibsInst->LoadLibs(NULL,true); //Loaded at startup or from Prefs now
if (!FFmpegLibsInst->ValidLibsLoaded()) return false;
av_log_set_callback(av_log_wx_callback);
// See if libavformat has modules that can write our output format. If so, mEncFormatDesc
// will describe the functions used to write the format (used internally by libavformat)
// and the default video/audio codecs that the format uses.
if ((mEncFormatDesc = av_guess_format(shortname, OSINPUT(mName), NULL)) == NULL)
{
wxMessageBox(wxString::Format(_("FFmpeg : ERROR - Can't determine format description for file \"%s\"."), mName.c_str()),
_("FFmpeg Error"), wxOK|wxCENTER|wxICON_EXCLAMATION);
return false;
}
// mEncFormatCtx is used by libavformat to carry around context data re our output file.
if ((mEncFormatCtx = avformat_alloc_context()) == NULL)
{
wxMessageBox(wxString::Format(_("FFmpeg : ERROR - Can't allocate output format context.")),
_("FFmpeg Error"), wxOK|wxCENTER|wxICON_EXCLAMATION);
return false;
}
// Initialise the output format context.
mEncFormatCtx->oformat = mEncFormatDesc;
memcpy(mEncFormatCtx->filename, OSINPUT(mName), strlen(OSINPUT(mName))+1);
// At the moment Audacity can export only one audio stream
if ((mEncAudioStream = avformat_new_stream(mEncFormatCtx, NULL)) == NULL)
{
wxMessageBox(wxString::Format(_("FFmpeg : ERROR - Can't add audio stream to output file \"%s\"."), mName.c_str()),
_("FFmpeg Error"), wxOK|wxCENTER|wxICON_EXCLAMATION);
return false;
}
mEncAudioStream->id = 0;
// Open the output file.
if (!(mEncFormatDesc->flags & AVFMT_NOFILE))
{
if ((err = ufile_fopen(&mEncFormatCtx->pb, mName, AVIO_FLAG_WRITE)) < 0)
{
wxMessageBox(wxString::Format(wxT("FFmpeg : ERROR - Can't open output file \"%s\" to write. Error code is %d."), mName.c_str(), err),
_("FFmpeg Error"), wxOK|wxCENTER|wxICON_EXCLAMATION);
return false;
}
}
// Open the audio stream's codec and initialise any stream related data.
if (!InitCodecs(project))
return false;
if (metadata == NULL)
metadata = project->GetTags();
// Add metadata BEFORE writing the header.
// At the moment that works with ffmpeg-git and ffmpeg-0.5 for MP4.
if (GetCanMetaData(subformat))
{
mSupportsUTF8 = ExportFFmpegOptions::fmts[mSubFormat].canutf8;
AddTags(metadata);
}
// Write headers to the output file.
if ((err = avformat_write_header(mEncFormatCtx, NULL)) < 0)
{
wxMessageBox(wxString::Format(_("FFmpeg : ERROR - Can't write headers to output file \"%s\". Error code is %d."), mName.c_str(),err),
_("FFmpeg Error"), wxOK|wxCENTER|wxICON_EXCLAMATION);
return false;
}
return true;
}
bool ExportFFmpeg::Init(const char *shortname, AudacityProject *project, const Tags *metadata, int subformat)
{
// This will undo the acquisition of resources along any early exit path:
auto deleter = [](ExportFFmpeg *This) {
if (This)
This->FreeResources();
};
std::unique_ptr<ExportFFmpeg, decltype(deleter)> cleanup{ this, deleter };
int err;
//FFmpegLibsInst->LoadLibs(NULL,true); //Loaded at startup or from Prefs now
if (!FFmpegLibsInst->ValidLibsLoaded())
return false;
av_log_set_callback(av_log_wx_callback);
// See if libavformat has modules that can write our output format. If so, mEncFormatDesc
// will describe the functions used to write the format (used internally by libavformat)
// and the default video/audio codecs that the format uses.
if ((mEncFormatDesc = av_guess_format(shortname, OSINPUT(mName), NULL)) == NULL)
{
wxMessageBox(wxString::Format(_("FFmpeg : ERROR - Can't determine format description for file \"%s\"."), mName.c_str()),
_("FFmpeg Error"), wxOK|wxCENTER|wxICON_EXCLAMATION);
return false;
}
// mEncFormatCtx is used by libavformat to carry around context data re our output file.
mEncFormatCtx.reset(avformat_alloc_context());
if (!mEncFormatCtx)
{
wxMessageBox(wxString::Format(_("FFmpeg : ERROR - Can't allocate output format context.")),
_("FFmpeg Error"), wxOK|wxCENTER|wxICON_EXCLAMATION);
return false;
}
// Initialise the output format context.
mEncFormatCtx->oformat = mEncFormatDesc;
memcpy(mEncFormatCtx->filename, OSINPUT(mName), strlen(OSINPUT(mName))+1);
// At the moment Audacity can export only one audio stream
if ((mEncAudioStream = avformat_new_stream(mEncFormatCtx.get(), NULL)) == NULL)
{
wxMessageBox(wxString::Format(_("FFmpeg : ERROR - Can't add audio stream to output file \"%s\"."), mName.c_str()),
_("FFmpeg Error"), wxOK|wxCENTER|wxICON_EXCLAMATION);
return false;
}
// Documentation for avformat_new_stream says
// "User is required to call avcodec_close() and avformat_free_context() to clean
// up the allocation by avformat_new_stream()."
// We use smart pointers that ensure these cleanups either in their destructors or
// sooner if they are reset. These are std::unique_ptr with nondefault deleter
// template parameters.
// mEncFormatCtx takes care of avformat_free_context(), so
// mEncAudioStream can be a plain pointer.
// mEncAudioCodecCtx now becomes responsible for closing the codec:
mEncAudioCodecCtx.reset(mEncAudioStream->codec);
mEncAudioStream->id = 0;
// Open the output file.
if (!(mEncFormatDesc->flags & AVFMT_NOFILE))
{
if ((err = ufile_fopen(&mEncFormatCtx->pb, mName, AVIO_FLAG_WRITE)) < 0)
{
wxMessageBox(wxString::Format(wxT("FFmpeg : ERROR - Can't open output file \"%s\" to write. Error code is %d."), mName.c_str(), err),
_("FFmpeg Error"), wxOK|wxCENTER|wxICON_EXCLAMATION);
return false;
}
// Give mUfileCloser responsibility
mUfileCloser.reset(mEncFormatCtx->pb);
}
// Open the audio stream's codec and initialise any stream related data.
if (!InitCodecs(project))
return false;
if (metadata == NULL)
metadata = project->GetTags();
// Add metadata BEFORE writing the header.
// At the moment that works with ffmpeg-git and ffmpeg-0.5 for MP4.
if (GetCanMetaData(subformat))
{
mSupportsUTF8 = ExportFFmpegOptions::fmts[mSubFormat].canutf8;
AddTags(metadata);
}
// Write headers to the output file.
if ((err = avformat_write_header(mEncFormatCtx.get(), NULL)) < 0)
{
wxMessageBox(wxString::Format(_("FFmpeg : ERROR - Can't write headers to output file \"%s\". Error code is %d."), mName.c_str(),err),
_("FFmpeg Error"), wxOK|wxCENTER|wxICON_EXCLAMATION);
return false;
}
// Only now, we can keep all the resources until Finalize().
// Cancel the local cleanup.
cleanup.release();
return true;
}
