Aegisub/src/project.cpp

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// Copyright (c) 2014, Thomas Goyne <plorkyeran@aegisub.org>
//
// Permission to use, copy, modify, and distribute this software for any
// purpose with or without fee is hereby granted, provided that the above
// copyright notice and this permission notice appear in all copies.
//
// THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
// WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
// MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
// ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
// WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
// ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
// OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
//
// Aegisub Project http://www.aegisub.org/
#include "project.h"
#include "ass_dialogue.h"
#include "ass_file.h"
#include "async_video_provider.h"
#include "audio_controller.h"
#include "audio_provider_factory.h"
#include "base_grid.h"
#include "charset_detect.h"
#include "compat.h"
#include "dialog_progress.h"
#include "dialogs.h"
#include "format.h"
#include "include/aegisub/context.h"
#include "include/aegisub/video_provider.h"
#include "mkv_wrap.h"
#include "options.h"
#include "selection_controller.h"
#include "subs_controller.h"
#include "utils.h"
#include "video_controller.h"
#include "video_display.h"
#include <libaegisub/audio/provider.h>
#include <libaegisub/format_path.h>
#include <libaegisub/fs.h>
#include <libaegisub/keyframe.h>
#include <libaegisub/log.h>
#include <libaegisub/make_unique.h>
#include <libaegisub/path.h>
#include <boost/algorithm/string/case_conv.hpp>
#include <boost/filesystem/operations.hpp>
#include <wx/msgdlg.h>
Project::Project(agi::Context *c) : context(c) {
OPT_SUB("Audio/Cache/Type", &Project::ReloadAudio, this);
OPT_SUB("Audio/Provider", &Project::ReloadAudio, this);
OPT_SUB("Provider/Audio/FFmpegSource/Decode Error Handling", &Project::ReloadAudio, this);
OPT_SUB("Provider/Avisynth/Allow Ancient", &Project::ReloadVideo, this);
OPT_SUB("Provider/Avisynth/Memory Max", &Project::ReloadVideo, this);
OPT_SUB("Provider/Video/FFmpegSource/Decoding Threads", &Project::ReloadVideo, this);
OPT_SUB("Provider/Video/FFmpegSource/Unsafe Seeking", &Project::ReloadVideo, this);
OPT_SUB("Subtitle/Provider", &Project::ReloadVideo, this);
OPT_SUB("Video/Force BT.601", &Project::ReloadVideo, this);
OPT_SUB("Video/Provider", &Project::ReloadVideo, this);
}
Project::~Project() { }
void Project::UpdateRelativePaths() {
context->ass->Properties.audio_file = context->path->MakeRelative(audio_file, "?script").generic_string();
context->ass->Properties.video_file = context->path->MakeRelative(video_file, "?script").generic_string();
context->ass->Properties.timecodes_file = context->path->MakeRelative(timecodes_file, "?script").generic_string();
context->ass->Properties.keyframes_file = context->path->MakeRelative(keyframes_file, "?script").generic_string();
}
void Project::ReloadAudio() {
if (audio_provider)
LoadAudio(audio_file);
}
void Project::ReloadVideo() {
if (video_provider) {
DoLoadVideo(video_file);
context->videoController->JumpToFrame(context->videoController->GetFrameN());
}
}
void Project::ShowError(wxString const& message) {
wxMessageBox(message, "Error loading file", wxOK | wxICON_ERROR | wxCENTER, context->parent);
}
void Project::ShowError(std::string const& message) {
ShowError(to_wx(message));
}
void Project::SetPath(agi::fs::path& var, const char *token, const char *mru, agi::fs::path const& value) {
var = value;
if (*token)
context->path->SetToken(token, value);
if (*mru)
config::mru->Add(mru, value);
UpdateRelativePaths();
}
bool Project::DoLoadSubtitles(agi::fs::path const& path, std::string encoding, ProjectProperties &properties) {
try {
if (encoding.empty())
encoding = CharSetDetect::GetEncoding(path);
}
catch (agi::UserCancelException const&) {
return false;
}
catch (agi::fs::FileNotFound const&) {
config::mru->Remove("Subtitle", path);
ShowError(path.string() + " not found.");
return false;
}
if (encoding != "binary") {
// Try loading as timecodes and keyframes first since we can't
// distinguish them based on filename alone, and just ignore failures
// rather than trying to differentiate between malformed timecodes
// files and things that aren't timecodes files at all
try { DoLoadTimecodes(path); return false; } catch (...) { }
try { DoLoadKeyframes(path); return false; } catch (...) { }
}
try {
properties = context->subsController->Load(path, encoding);
}
catch (agi::UserCancelException const&) { return false; }
catch (agi::fs::FileNotFound const&) {
config::mru->Remove("Subtitle", path);
ShowError(path.string() + " not found.");
return false;
}
catch (agi::Exception const& e) {
ShowError(e.GetMessage());
return false;
}
catch (std::exception const& e) {
ShowError(std::string(e.what()));
return false;
}
catch (...) {
ShowError(wxString("Unknown error"));
return false;
}
Selection sel;
AssDialogue *active_line = nullptr;
if (!context->ass->Events.empty()) {
int row = mid<int>(0, properties.active_row, context->ass->Events.size() - 1);
active_line = &*std::next(context->ass->Events.begin(), row);
sel.insert(active_line);
}
context->selectionController->SetSelectionAndActive(std::move(sel), active_line);
context->subsGrid->ScrollTo(properties.scroll_position);
return true;
}
void Project::LoadSubtitles(agi::fs::path path, std::string encoding, bool load_linked) {
ProjectProperties properties;
if (DoLoadSubtitles(path, encoding, properties) && load_linked)
LoadUnloadFiles(properties);
}
void Project::CloseSubtitles() {
context->subsController->Close();
context->path->SetToken("?script", "");
LoadUnloadFiles(context->ass->Properties);
auto line = &*context->ass->Events.begin();
context->selectionController->SetSelectionAndActive({line}, line);
}
void Project::LoadUnloadFiles(ProjectProperties properties) {
auto load_linked = OPT_GET("App/Auto/Load Linked Files")->GetInt();
if (!load_linked) return;
auto audio = context->path->MakeAbsolute(properties.audio_file, "?script");
auto video = context->path->MakeAbsolute(properties.video_file, "?script");
auto timecodes = context->path->MakeAbsolute(properties.timecodes_file, "?script");
auto keyframes = context->path->MakeAbsolute(properties.keyframes_file, "?script");
if (video == video_file && audio == audio_file && keyframes == keyframes_file && timecodes == timecodes_file)
return;
if (load_linked == 2) {
wxString str = _("Do you want to load/unload the associated files?");
str += "\n";
auto append_file = [&](agi::fs::path const& p, wxString const& unload, wxString const& load) {
if (p.empty())
str += "\n" + unload;
else
str += "\n" + agi::wxformat(load, p);
};
if (audio != audio_file)
append_file(audio, _("Unload audio"), _("Load audio file: %s"));
if (video != video_file)
append_file(video, _("Unload video"), _("Load video file: %s"));
if (timecodes != timecodes_file)
append_file(timecodes, _("Unload timecodes"), _("Load timecodes file: %s"));
if (keyframes != keyframes_file)
append_file(keyframes, _("Unload keyframes"), _("Load keyframes file: %s"));
if (wxMessageBox(str, _("(Un)Load files?"), wxYES_NO | wxCENTRE, context->parent) != wxYES)
return;
}
bool loaded_video = false;
if (video != video_file) {
if (video.empty())
CloseVideo();
else if ((loaded_video = DoLoadVideo(video))) {
auto vc = context->videoController.get();
vc->JumpToFrame(properties.video_position);
auto ar_mode = static_cast<AspectRatio>(properties.ar_mode);
if (ar_mode == AspectRatio::Custom)
vc->SetAspectRatio(properties.ar_value);
else
vc->SetAspectRatio(ar_mode);
context->videoDisplay->SetZoom(properties.video_zoom);
}
}
if (!timecodes.empty()) LoadTimecodes(timecodes);
if (!keyframes.empty()) LoadKeyframes(keyframes);
if (audio != audio_file) {
if (audio.empty())
CloseAudio();
else
DoLoadAudio(audio, false);
}
else if (loaded_video && OPT_GET("Video/Open Audio")->GetBool() && audio_file != video_file && video_provider->HasAudio())
DoLoadAudio(video, true);
}
void Project::DoLoadAudio(agi::fs::path const& path, bool quiet) {
if (!progress)
progress = new DialogProgress(context->parent);
try {
try {
audio_provider = GetAudioProvider(path, *context->path, progress);
}
catch (agi::UserCancelException const&) { return; }
catch (...) {
config::mru->Remove("Audio", path);
throw;
}
}
catch (agi::fs::FileNotFound const& e) {
return ShowError(_("The audio file was not found: ") + to_wx(e.GetMessage()));
}
catch (agi::AudioDataNotFound const& e) {
if (quiet) {
LOG_D("video/open/audio") << "File " << video_file << " has no audio data: " << e.GetMessage();
return;
}
else
return ShowError(_("None of the available audio providers recognised the selected file as containing audio data.\n\nThe following providers were tried:\n") + to_wx(e.GetMessage()));
}
catch (agi::AudioProviderError const& e) {
return ShowError(_("None of the available audio providers have a codec available to handle the selected file.\n\nThe following providers were tried:\n") + to_wx(e.GetMessage()));
}
catch (agi::Exception const& e) {
return ShowError(e.GetMessage());
}
SetPath(audio_file, "?audio", "Audio", path);
AnnounceAudioProviderModified(audio_provider.get());
}
void Project::LoadAudio(agi::fs::path path) {
DoLoadAudio(path, false);
}
void Project::CloseAudio() {
AnnounceAudioProviderModified(nullptr);
audio_provider.reset();
SetPath(audio_file, "?audio", "", "");
}
bool Project::DoLoadVideo(agi::fs::path const& path) {
if (!progress)
progress = new DialogProgress(context->parent);
try {
auto old_matrix = context->ass->GetScriptInfo("YCbCr Matrix");
video_provider = agi::make_unique<AsyncVideoProvider>(path, old_matrix, context->videoController.get(), progress);
}
catch (agi::UserCancelException const&) { return false; }
catch (agi::fs::FileSystemError const& err) {
config::mru->Remove("Video", path);
ShowError(to_wx(err.GetMessage()));
return false;
}
catch (VideoProviderError const& err) {
ShowError(to_wx(err.GetMessage()));
return false;
}
AnnounceVideoProviderModified(video_provider.get());
UpdateVideoProperties(context->ass.get(), video_provider.get(), context->parent);
video_provider->LoadSubtitles(context->ass.get());
timecodes = video_provider->GetFPS();
keyframes = video_provider->GetKeyFrames();
timecodes_file.clear();
keyframes_file.clear();
SetPath(video_file, "?video", "Video", path);
std::string warning = video_provider->GetWarning();
if (!warning.empty())
wxMessageBox(to_wx(warning), "Warning", wxICON_WARNING | wxOK);
video_has_subtitles = false;
if (agi::fs::HasExtension(path, "mkv"))
video_has_subtitles = MatroskaWrapper::HasSubtitles(path);
AnnounceKeyframesModified(keyframes);
AnnounceTimecodesModified(timecodes);
return true;
}
void Project::LoadVideo(agi::fs::path path) {
if (path.empty()) return;
if (!DoLoadVideo(path)) return;
if (OPT_GET("Video/Open Audio")->GetBool() && audio_file != video_file && video_provider->HasAudio())
DoLoadAudio(video_file, true);
double dar = video_provider->GetDAR();
if (dar > 0)
context->videoController->SetAspectRatio(dar);
else
context->videoController->SetAspectRatio(AspectRatio::Default);
context->videoController->JumpToFrame(0);
}
void Project::CloseVideo() {
AnnounceVideoProviderModified(nullptr);
video_provider.reset();
SetPath(video_file, "?video", "", "");
video_has_subtitles = false;
context->ass->Properties.ar_mode = 0;
context->ass->Properties.ar_value = 0.0;
context->ass->Properties.video_position = 0;
}
void Project::DoLoadTimecodes(agi::fs::path const& path) {
timecodes = agi::vfr::Framerate(path);
SetPath(timecodes_file, "", "Timecodes", path);
AnnounceTimecodesModified(timecodes);
}
void Project::LoadTimecodes(agi::fs::path path) {
try {
DoLoadTimecodes(path);
}
catch (agi::fs::FileSystemError const& e) {
ShowError(e.GetMessage());
config::mru->Remove("Timecodes", path);
}
catch (agi::vfr::Error const& e) {
ShowError("Failed to parse timecodes file: " + e.GetMessage());
config::mru->Remove("Timecodes", path);
}
}
void Project::CloseTimecodes() {
timecodes = video_provider ? video_provider->GetFPS() : agi::vfr::Framerate{};
SetPath(timecodes_file, "", "", "");
AnnounceTimecodesModified(timecodes);
}
void Project::DoLoadKeyframes(agi::fs::path const& path) {
keyframes = agi::keyframe::Load(path);
SetPath(keyframes_file, "", "Keyframes", path);
AnnounceKeyframesModified(keyframes);
}
void Project::LoadKeyframes(agi::fs::path path) {
try {
DoLoadKeyframes(path);
}
catch (agi::fs::FileSystemError const& e) {
ShowError(e.GetMessage());
config::mru->Remove("Keyframes", path);
}
catch (agi::keyframe::Error const& e) {
ShowError("Failed to parse keyframes file: " + e.GetMessage());
config::mru->Remove("Keyframes", path);
}
}
void Project::CloseKeyframes() {
keyframes = video_provider ? video_provider->GetKeyFrames() : std::vector<int>{};
SetPath(keyframes_file, "", "", "");
AnnounceKeyframesModified(keyframes);
}
void Project::LoadList(std::vector<agi::fs::path> const& files) {
// Keep these lists sorted
// Video formats
const char *videoList[] = {
".asf",
".avi",
".avs",
".d2v",
".m2ts",
".m4v",
".mkv",
".mov",
".mp4",
".mpeg",
".mpg",
".ogm",
".rm",
".rmvb",
".ts",
".webm"
".wmv",
".y4m",
".yuv"
};
// Subtitle formats
const char *subsList[] = {
".ass",
".srt",
".ssa",
".sub",
".ttxt"
};
// Audio formats
const char *audioList[] = {
".aac",
".ac3",
".ape",
".dts",
".flac",
".m4a",
".mka",
".mp3",
".ogg",
".w64",
".wav",
".wma"
};
auto search = [](const char **begin, const char **end, std::string const& str) {
return std::binary_search(begin, end, str.c_str(), [](const char *a, const char *b) {
return strcmp(a, b) < 0;
});
};
agi::fs::path audio, video, subs, timecodes, keyframes;
for (auto file : files) {
if (file.is_relative()) file = absolute(file);
if (!agi::fs::FileExists(file)) continue;
auto ext = file.extension().string();
boost::to_lower(ext);
// Could be subtitles, keyframes or timecodes, so try loading as each
if (ext == ".txt" || ext == ".log") {
if (timecodes.empty()) {
try {
DoLoadTimecodes(file);
timecodes = file;
continue;
} catch (...) { }
}
if (keyframes.empty()) {
try {
DoLoadKeyframes(file);
keyframes = file;
continue;
} catch (...) { }
}
if (subs.empty() && ext != ".log")
subs = file;
continue;
}
if (subs.empty() && search(std::begin(subsList), std::end(subsList), ext))
subs = file;
if (video.empty() && search(std::begin(videoList), std::end(videoList), ext))
video = file;
if (audio.empty() && search(std::begin(audioList), std::end(audioList), ext))
audio = file;
}
ProjectProperties properties;
if (!subs.empty()) {
if (!DoLoadSubtitles(subs, "", properties))
subs.clear();
}
if (!video.empty() && DoLoadVideo(video)) {
double dar = video_provider->GetDAR();
if (dar > 0)
context->videoController->SetAspectRatio(dar);
else
context->videoController->SetAspectRatio(AspectRatio::Default);
context->videoController->JumpToFrame(0);
// We loaded these earlier, but loading video unloaded them
// Non-Do version of Load in case they've vanished or changed between
// then and now
if (!timecodes.empty())
LoadTimecodes(timecodes);
if (!keyframes.empty())
LoadKeyframes(keyframes);
}
if (!audio.empty())
DoLoadAudio(audio, false);
else if (OPT_GET("Video/Open Audio")->GetBool() && audio_file != video_file)
DoLoadAudio(video_file, true);
if (!subs.empty())
LoadUnloadFiles(properties);
}