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Code Issues Releases Wiki Activity

Use arrays of smart pointers to import plugins

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This commit is contained in:
Paul Licameli 2016-08-10 22:21:09 -04:00
parent 7d89e5ff68
commit 28f0b11376
11 changed files with 66 additions and 94 deletions
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102
src/import/Import.cpp
View File

@ -38,6 +38,7 @@ and ImportLOF.cpp.
#include "../Audacity.h"
#include "Import.h"
#include <algorithm>
#include "ImportPlugin.h"
#include <wx/textctrl.h>
@ -62,8 +63,6 @@ and ImportLOF.cpp.
#include "ImportGStreamer.h"
#include "../Prefs.h"
WX_DEFINE_LIST(ImportPluginList);
WX_DEFINE_LIST(UnusableImportPluginList);
WX_DEFINE_OBJARRAY(ExtImportItems);
// ============================================================================
@ -125,9 +124,7 @@ bool Importer::Initialize()
bool Importer::Terminate()
{
WriteImportItems();
mImportPluginList->DeleteContents(true);
delete mImportPluginList;
mUnusableImportPluginList->DeleteContents(true);//JKC
delete mUnusableImportPluginList;
return true;
@ -135,10 +132,8 @@ bool Importer::Terminate()
void Importer::GetSupportedImportFormats(FormatList *formatList)
{
ImportPluginList::compatibility_iterator importPluginNode = mImportPluginList->GetFirst();
while(importPluginNode)
for(const auto &importPlugin : *mImportPluginList)
{
ImportPlugin *importPlugin = importPluginNode->GetData();
#ifdef __AUDACITY_OLD_STD__
formatList->push_back(Format{importPlugin->GetPluginFormatDescription(),
importPlugin->GetSupportedExtensions()});
@ -146,7 +141,6 @@ void Importer::GetSupportedImportFormats(FormatList *formatList)
formatList->emplace_back(importPlugin->GetPluginFormatDescription(),
importPlugin->GetSupportedExtensions());
#endif
importPluginNode = importPluginNode->GetNext();
}
}
@ -165,7 +159,6 @@ void Importer::ReadImportItems()
wxString item_name;
wxString item_value;
ExtImportItem *new_item;
ImportPluginList::compatibility_iterator importPluginNode;
if (this->mExtImportItems != NULL)
delete this->mExtImportItems;
@ -229,29 +222,27 @@ void Importer::ReadImportItems()
/* Find corresponding filter object for each filter ID */
for (size_t i = 0; i < new_item->filters.Count(); i++)
{
for (importPluginNode = mImportPluginList->GetFirst();
importPluginNode; importPluginNode = importPluginNode->GetNext())
bool found = false;
for (const auto &importPlugin : *mImportPluginList)
{
ImportPlugin *importPlugin = importPluginNode->GetData();
if (importPlugin->GetPluginStringID().Cmp(new_item->filters[i]) == 0)
{
new_item->filter_objects.Add (importPlugin);
new_item->filter_objects.Add (importPlugin.get());
found = true;
break;
}
}
/* IDs that do not have corresponding filters, will be shown as-is */
if (!importPluginNode)
if (!found)
new_item->filter_objects.Add (NULL);
}
/* Find all filter objects that are not present in the filter list */
for (importPluginNode = mImportPluginList->GetFirst();
importPluginNode; importPluginNode = importPluginNode->GetNext())
for (const auto &importPlugin : *mImportPluginList)
{
bool found = false;
ImportPlugin *importPlugin = importPluginNode->GetData();
for (size_t i = 0; i < new_item->filter_objects.Count(); i++)
{
if (importPlugin == new_item->filter_objects[i])
if (importPlugin.get() == new_item->filter_objects[i])
{
found = true;
break;
@ -264,7 +255,7 @@ void Importer::ReadImportItems()
if (new_item->divider < 0)
index = new_item->filters.Count();
new_item->filters.Insert(importPlugin->GetPluginStringID(),index);
new_item->filter_objects.Insert (importPlugin, index);
new_item->filter_objects.Insert (importPlugin.get(), index);
if (new_item->divider >= 0)
new_item->divider++;
}
@ -337,18 +328,15 @@ void Importer::WriteImportItems()
ExtImportItem *Importer::CreateDefaultImportItem()
{
ExtImportItem *new_item;
ImportPluginList::compatibility_iterator importPluginNode;
new_item = new ExtImportItem();
new_item->extensions.Add(wxT("*"));
new_item->mime_types.Add(wxT("*"));
for (importPluginNode = mImportPluginList->GetFirst();
importPluginNode; importPluginNode = importPluginNode->GetNext())
for (const auto &importPlugin : *mImportPluginList)
{
ImportPlugin *importPlugin = importPluginNode->GetData();
new_item->filters.Add (importPlugin->GetPluginStringID());
new_item->filter_objects.Add (importPlugin);
new_item->filter_objects.Add (importPlugin.get());
}
new_item->divider = -1;
return new_item;
@ -366,12 +354,13 @@ bool Importer::Import(const wxString &fName,
wxString extension = fName.AfterLast(wxT('.'));
using ImportPluginPtrs = std::vector< ImportPlugin* >;
// This list is used to call plugins in correct order
ImportPluginList importPlugins;
ImportPluginList::compatibility_iterator importPluginNode;
ImportPluginPtrs importPlugins;
// This list is used to remember plugins that should have been compatible with the file.
ImportPluginList compatiblePlugins;
ImportPluginPtrs compatiblePlugins;
// If user explicitly selected a filter,
// then we should try importing via corresponding plugin first
@ -389,17 +378,14 @@ bool Importer::Import(const wxString &fName,
if (usersSelectionOverrides)
{
importPluginNode = mImportPluginList->GetFirst();
while (importPluginNode)
for (const auto &plugin : *mImportPluginList)
{
ImportPlugin *plugin = importPluginNode->GetData();
if (plugin->GetPluginFormatDescription().CompareTo(type) == 0)
{
// This plugin corresponds to user-selected filter, try it first.
wxLogDebug(wxT("Inserting %s"),plugin->GetPluginStringID().c_str());
importPlugins.Insert(plugin);
importPlugins.insert(importPlugins.begin(), plugin.get());
}
importPluginNode = importPluginNode->GetNext();
}
}
@ -455,13 +441,12 @@ bool Importer::Import(const wxString &fName,
if (!(item->filter_objects[j]))
continue;
wxLogDebug(wxT("Inserting %s"),item->filter_objects[j]->GetPluginStringID().c_str());
importPlugins.Append(item->filter_objects[j]);
importPlugins.push_back(item->filter_objects[j]);
}
}
}
// Add all plugins that support the extension
importPluginNode = mImportPluginList->GetFirst();
// Here we rely on the fact that the first plugin in mImportPluginList is libsndfile.
// We want to save this for later insertion ahead of libmad, if libmad supports the extension.
@ -469,14 +454,14 @@ bool Importer::Import(const wxString &fName,
// is not changed by user selection overrides or any other mechanism, but we include an assert
// in case subsequent code revisions to the constructor should break this assumption that
// libsndfile is first.
ImportPlugin *libsndfilePlugin = importPluginNode->GetData();
ImportPlugin *libsndfilePlugin = mImportPluginList->begin()->get();
wxASSERT(libsndfilePlugin->GetPluginStringID().IsSameAs(wxT("libsndfile")));
while (importPluginNode)
for (const auto &plugin : *mImportPluginList)
{
ImportPlugin *plugin = importPluginNode->GetData();
// Make sure its not already in the list
if (importPlugins.Find(plugin) == NULL)
if (importPlugins.end() ==
std::find(importPlugins.begin(), importPlugins.end(), plugin.get()))
{
if (plugin->SupportsExtension(extension))
{
@ -491,45 +476,40 @@ bool Importer::Import(const wxString &fName,
if (plugin->GetPluginStringID().IsSameAs(wxT("libmad")))
{
// Make sure libsndfile is not already in the list
if (importPlugins.Find(libsndfilePlugin) == NULL)
if (importPlugins.end() ==
std::find(importPlugins.begin(), importPlugins.end(), libsndfilePlugin))
{
wxLogDebug(wxT("Appending %s"),libsndfilePlugin->GetPluginStringID().c_str());
importPlugins.Append(libsndfilePlugin);
importPlugins.push_back(libsndfilePlugin);
}
}
wxLogDebug(wxT("Appending %s"),plugin->GetPluginStringID().c_str());
importPlugins.Append(plugin);
importPlugins.push_back(plugin.get());
}
}
importPluginNode = importPluginNode->GetNext();
}
// Add remaining plugins, except for libmad, which should not be used as a fallback for anything.
// Otherwise, if FFmpeg (libav) has not been installed, libmad will still be there near the
// end of the preference list importPlugins, where it will claim success importing FFmpeg file
// formats unsuitable for it, and produce distorted results.
importPluginNode = mImportPluginList->GetFirst();
while (importPluginNode)
for (const auto &plugin : *mImportPluginList)
{
ImportPlugin *plugin = importPluginNode->GetData();
if (!(plugin->GetPluginStringID().IsSameAs(wxT("libmad"))))
{
// Make sure its not already in the list
if (importPlugins.Find(plugin) == NULL)
if (importPlugins.end() ==
std::find(importPlugins.begin(), importPlugins.end(), plugin.get()))
{
wxLogDebug(wxT("Appending %s"),plugin->GetPluginStringID().c_str());
importPlugins.Append(plugin);
importPlugins.push_back(plugin.get());
}
}
}
importPluginNode = importPluginNode->GetNext();
}
importPluginNode = importPlugins.GetFirst();
while(importPluginNode)
// Try the import plugins, in the permuted sequences just determined
for (const auto plugin : importPlugins)
{
ImportPlugin *plugin = importPluginNode->GetData();
// Try to open the file with this plugin (probe it)
wxLogMessage(wxT("Opening with %s"),plugin->GetPluginStringID().c_str());
auto inFile = plugin->Open(fName);
@ -583,18 +563,14 @@ bool Importer::Import(const wxString &fName,
// that may recognize the extension, so we allow the loop to
// continue.
}
importPluginNode = importPluginNode->GetNext();
}
wxLogError(wxT("Importer::Import: Opening failed."));
// None of our plugins can handle this file. It might be that
// Audacity supports this format, but support was not compiled in.
// If so, notify the user of this fact
UnusableImportPluginList::compatibility_iterator unusableImporterNode
= mUnusableImportPluginList->GetFirst();
while(unusableImporterNode)
for (const auto &unusableImportPlugin : *mUnusableImportPluginList)
{
UnusableImportPlugin *unusableImportPlugin = unusableImporterNode->GetData();
if( unusableImportPlugin->SupportsExtension(extension) )
{
errorMessage.Printf(_("This version of Audacity was not compiled with %s support."),
@ -603,7 +579,6 @@ bool Importer::Import(const wxString &fName,
pProj->mbBusyImporting = false;
return false;
}
unusableImporterNode = unusableImporterNode->GetNext();
}
/* warnings for unsupported data types */
@ -617,7 +592,7 @@ bool Importer::Import(const wxString &fName,
}
#endif
if (compatiblePlugins.GetCount() <= 0)
if (compatiblePlugins.empty())
{
// if someone has sent us a .cda file, send them away
if (extension.IsSameAs(wxT("cda"), false)) {
@ -715,15 +690,12 @@ bool Importer::Import(const wxString &fName,
// We DO have a plugin for this file, but import failed.
wxString pluglist = wxEmptyString;
importPluginNode = compatiblePlugins.GetFirst();
while(importPluginNode)
for (const auto &plugin : compatiblePlugins)
{
ImportPlugin *plugin = importPluginNode->GetData();
if (pluglist == wxEmptyString)
pluglist = plugin->GetPluginFormatDescription();
else
pluglist = pluglist + wxT(", ") + plugin->GetPluginFormatDescription();
importPluginNode = importPluginNode->GetNext();
}
errorMessage.Printf(_("Audacity recognized the type of the file '%s'.\nImporters supposedly supporting such files are:\n%s,\nbut none of them understood this file format."),fName.c_str(), pluglist.c_str());

4
src/import/Import.h
View File

@ -12,6 +12,7 @@
#define _IMPORT_
#include "ImportRaw.h" // defines TrackHolders
#include "ImportForwards.h"
#include <vector>
#include <wx/arrstr.h>
#include <wx/string.h>
@ -85,9 +86,6 @@ class ExtImportItem
wxArrayString mime_types;
};
class ImportPluginList;
class UnusableImportPluginList;
class Importer {
public:
Importer();

2
src/import/ImportFFmpeg.cpp
View File

@ -286,7 +286,7 @@ private:
void GetFFmpegImportPlugin(ImportPluginList &importPluginList,
UnusableImportPluginList &WXUNUSED(unusableImportPluginList))
{
importPluginList.push_back( new FFmpegImportPlugin );
importPluginList.push_back( make_movable<FFmpegImportPlugin>() );
}

10
src/import/ImportFLAC.cpp
View File

@ -59,10 +59,10 @@ static const wxChar *exts[] =
void GetFLACImportPlugin(ImportPluginList &importPluginList,
UnusableImportPluginList &unusableImportPluginList)
{
UnusableImportPlugin* flacIsUnsupported =
new UnusableImportPlugin(DESC, wxArrayString(WXSIZEOF(exts), exts));
unusableImportPluginList.push_back( flacIsUnsupported );
unusableImportPluginList.push_back(
make_movable<UnusableImportPlugin>
(DESC, wxArrayString(WXSIZEOF(exts), exts));
);
}
#else /* USE_LIBFLAC */
@ -285,7 +285,7 @@ FLAC__StreamDecoderWriteStatus MyFLACFile::write_callback(const FLAC__Frame *fra
void GetFLACImportPlugin(ImportPluginList &importPluginList,
UnusableImportPluginList &WXUNUSED(unusableImportPluginList))
{
importPluginList.push_back( new FLACImportPlugin );
importPluginList.push_back( make_movable<FLACImportPlugin>() );
}

8
src/import/ImportForwards.h
View File

@ -9,13 +9,15 @@
#ifndef __AUDACITY_IMPORT_FORWARDS__
#define __AUDACITY_IMPORT_FORWARDS__
#include <wx/list.h>
#include <vector>
#include "../MemoryX.h"
class ImportPlugin;
class UnusableImportPlugin;
WX_DECLARE_LIST(ImportPlugin, ImportPluginList);
WX_DECLARE_LIST(UnusableImportPlugin, UnusableImportPluginList);
using ImportPluginList =
std::vector< movable_ptr<ImportPlugin> >;
using UnusableImportPluginList =
std::vector< movable_ptr<UnusableImportPlugin> >;
#endif

2
src/import/ImportGStreamer.cpp
View File

@ -300,7 +300,7 @@ GetGStreamerImportPlugin(ImportPluginList &importPluginList,
return;
// Add to list of importers
importPluginList.push_back( plug.release() );
importPluginList.push_back( std::move(plug) );
}
// ============================================================================

2
src/import/ImportLOF.cpp
View File

@ -178,7 +178,7 @@ LOFImportFileHandle::LOFImportFileHandle
void GetLOFImportPlugin(ImportPluginList &importPluginList,
UnusableImportPluginList & WXUNUSED(unusableImportPluginList))
{
importPluginList.push_back( new LOFImportPlugin );
importPluginList.push_back( make_movable<LOFImportPlugin>() );
}
wxString LOFImportPlugin::GetPluginFormatDescription()

10
src/import/ImportMP3.cpp
View File

@ -59,10 +59,10 @@ static const wxChar *exts[] =
void GetMP3ImportPlugin(ImportPluginList &importPluginList,
UnusableImportPluginList &unusableImportPluginList)
{
UnusableImportPlugin* mp3IsUnsupported =
new UnusableImportPlugin(DESC, wxArrayString(WXSIZEOF(exts), exts));
unusableImportPluginList.push_back( mp3IsUnsupported );
unusableImportPluginList.push_back(
make_movable<UnusableImportPlugin>
(DESC, wxArrayString(WXSIZEOF(exts), exts))
);
}
#else /* USE_LIBMAD */
@ -156,7 +156,7 @@ private:
void GetMP3ImportPlugin(ImportPluginList &importPluginList,
UnusableImportPluginList & WXUNUSED(unusableImportPluginList))
{
importPluginList.push_back( new MP3ImportPlugin );
importPluginList.push_back( make_movable<MP3ImportPlugin>() );
}
/* The MAD callbacks */

10
src/import/ImportOGG.cpp
View File

@ -58,10 +58,10 @@ static const wxChar *exts[] =
void GetOGGImportPlugin(ImportPluginList &importPluginList,
UnusableImportPluginList &unusableImportPluginList)
{
UnusableImportPlugin* oggIsUnsupported =
new UnusableImportPlugin(DESC, wxArrayString(WXSIZEOF(exts), exts));
unusableImportPluginList.push_back( oggIsUnsupported );
unusableImportPluginList.push_back(
make_movable<UnusableImportPlugin>
(DESC, wxArrayString(WXSIZEOF(exts), exts))
);
}
#else /* USE_LIBVORBIS */
@ -163,7 +163,7 @@ private:
void GetOGGImportPlugin(ImportPluginList &importPluginList,
UnusableImportPluginList & WXUNUSED(unusableImportPluginList))
{
importPluginList.push_back( new OggImportPlugin );
importPluginList.push_back( make_movable<OggImportPlugin>() );
}
wxString OggImportPlugin::GetPluginFormatDescription()

2
src/import/ImportPCM.cpp
View File

@ -116,7 +116,7 @@ private:
void GetPCMImportPlugin(ImportPluginList & importPluginList,
UnusableImportPluginList & WXUNUSED(unusableImportPluginList))
{
importPluginList.push_back( new PCMImportPlugin );
importPluginList.push_back( make_movable<PCMImportPlugin>() );
}
wxString PCMImportPlugin::GetPluginFormatDescription()

10
src/import/ImportQT.cpp
View File

@ -30,10 +30,10 @@ static const wxChar *exts[] =
void GetQTImportPlugin(ImportPluginList &importPluginList,
UnusableImportPluginList &unusableImportPluginList)
{
UnusableImportPlugin* qtIsUnsupported =
new UnusableImportPlugin(DESC, wxArrayString(WXSIZEOF(exts), exts));
unusableImportPluginList.push_back( qtIsUnsupported );
unusableImportPluginList.push_back(
make_movable<UnusableImportPlugin>
(DESC, wxArrayString(WXSIZEOF(exts), exts))
);
}
#else /* USE_QUICKTIME */
@ -165,7 +165,7 @@ class QTImportFileHandle final : public ImportFileHandle
void GetQTImportPlugin(ImportPluginList &importPluginList,
UnusableImportPluginList &unusableImportPluginList)
{
importPluginList.push_back( new QTImportPlugin );
importPluginList.push_back( make_movable<QTImportPlugin>() );
}
wxString QTImportPlugin::GetPluginFormatDescription()