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Delete all the unused things in MatroskaWrapper (i.e. most of it), fix some derpy things, and make it throw typed exceptions.

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Originally committed to SVN as r5632.
This commit is contained in:
Thomas Goyne 2011-09-28 19:47:21 +00:00
parent 2ca9392942
commit f341a63f14
3 changed files with 137 additions and 501 deletions
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506
aegisub/src/mkv_wrap.cpp
View file

@ -38,6 +38,8 @@
#ifndef AGI_PRE
#include <errno.h>
#include <stdint.h>
#include <stdio.h>
#include <algorithm>
#include <iterator>
@ -47,249 +49,79 @@
#include <wx/choicdlg.h> // Keep this last so wxUSE_CHOICEDLG is set.
#endif
#include "ass_file.h"
#include "ass_time.h"
#include "dialog_progress.h"
#include <libaegisub/vfr.h>
#include "mkv_wrap.h"
/// DOCME
MatroskaWrapper MatroskaWrapper::wrapper;
#include "ass_file.h"
#include "ass_time.h"
#include "compat.h"
#include "dialog_progress.h"
#include "MatroskaParser.h"
/// DOCME
#define CACHESIZE 65536
class MkvStdIO : public InputStream {
public:
MkvStdIO(wxString filename);
~MkvStdIO() { if (fp) fclose(fp); }
/// @brief Constructor
///
MatroskaWrapper::MatroskaWrapper() {
file = NULL;
}
FILE *fp;
int error;
};
/// @brief Destructor
///
MatroskaWrapper::~MatroskaWrapper() {
Close();
}
#define CACHESIZE 65536
/// @brief Open file
/// @param filename
/// @param parse
///
void MatroskaWrapper::Open(wxString filename,bool parse) {
// Make sure it's closed first
Close();
// Open
void MatroskaWrapper::GetSubtitles(wxString const& filename, AssFile *target) {
MkvStdIO input(filename);
char err[2048];
input = new MkvStdIO(filename);
if (input->fp) {
file = mkv_Open(input,err,sizeof(err));
MatroskaFile *file = mkv_Open(&input, err, sizeof(err));
if (!file) throw MatroskaException(err);
// Failed parsing
if (!file) {
delete input;
throw wxString("MatroskaParser error: " + wxString(err,wxConvUTF8));
}
try {
// Get info
unsigned tracks = mkv_GetNumTracks(file);
TrackInfo *trackInfo;
std::vector<unsigned> tracksFound;
wxArrayString tracksNames;
unsigned trackToRead;
// Parse
if (parse) Parse();
}
// Haali's library variables
ulonglong startTime, endTime, filePos;
unsigned int rt, frameSize, frameFlags;
// Failed opening
else {
delete input;
throw "Unable to open Matroska file for parsing.";
}
}
// Find tracks
for (unsigned track = 0; track < tracks; track++) {
trackInfo = mkv_GetTrackInfo(file,track);
/// @brief Close file
/// @return
///
void MatroskaWrapper::Close() {
if (file) {
mkv_Close(file);
file = NULL;
delete input;
}
keyFrames.clear();
timecodes.clear();
}
// Subtitle track
if (trackInfo->Type == 0x11) {
wxString CodecID = wxString(trackInfo->CodecID,*wxConvCurrent);
wxString TrackName = wxString(trackInfo->Name,*wxConvCurrent);
wxString TrackLanguage = wxString(trackInfo->Language,*wxConvCurrent);
/// @brief Return keyframes
/// @return
///
std::vector<int> MatroskaWrapper::GetKeyFrames() {
return keyFrames;
}
/// @brief Comparison operator
/// @param t1
/// @param t2
/// @return
///
bool operator < (MkvFrame &t1, MkvFrame &t2) {
return t1.time < t2.time;
}
/// @brief Actually parse
///
void MatroskaWrapper::Parse() {
// Clear keyframes and timecodes
keyFrames.clear();
bytePos.Clear();
timecodes.clear();
frames.clear();
rawFrames.clear();
bytePos.Clear();
// Get info
int tracks = mkv_GetNumTracks(file);
TrackInfo *trackInfo;
SegmentInfo *segInfo = mkv_GetFileInfo(file);
// Parse tracks
for (int track=0;track<tracks;track++) {
trackInfo = mkv_GetTrackInfo(file,track);
// Video track
if (trackInfo->Type == 1) {
// Variables
ulonglong startTime, endTime, filePos;
unsigned int rt, frameSize, frameFlags;
//CompressedStream *cs = NULL;
// Timecode scale
longlong timecodeScale = mkv_TruncFloat(trackInfo->TimecodeScale) * segInfo->TimecodeScale;
// Mask other tracks away
mkv_SetTrackMask(file, ~(1 << track));
// Progress bar
int totalTime = int(double(segInfo->Duration) / timecodeScale);
volatile bool canceled = false;
DialogProgress *progress = new DialogProgress(NULL,_("Parsing Matroska"),&canceled,_("Reading keyframe and timecode data from Matroska file."),0,totalTime);
progress->Show();
progress->SetProgress(0,1);
// Read frames
register int frameN = 0;
while (mkv_ReadFrame(file,0,&rt,&startTime,&endTime,&filePos,&frameSize,&frameFlags) == 0) {
// Read value
double curTime = double(startTime) / 1000000.0;
frames.push_back(MkvFrame((frameFlags & FRAME_KF) != 0,curTime,filePos));
frameN++;
// Cancelled?
if (canceled) {
Close();
throw agi::UserCancelException("Canceled");
// Known subtitle format
if (CodecID == "S_TEXT/SSA" || CodecID == "S_TEXT/ASS" || CodecID == "S_TEXT/UTF8") {
tracksFound.push_back(track);
tracksNames.Add(wxString::Format("%d (%s %s): %s", track, CodecID, TrackLanguage, TrackName));
}
// Identical to (frameN % 2048) == 0,
// but much faster.
if ((frameN & (2048 - 1)) == 0)
// Update progress
progress->SetProgress(int(curTime),totalTime);
}
// Clean up progress
if (!canceled) progress->Destroy();
break;
}
}
rawFrames.reserve(frames.size());
std::copy(frames.begin(), frames.end(), std::back_inserter(rawFrames));
// Process timecodes and keyframes
frames.sort();
int i = 0;
for (std::list<MkvFrame>::iterator cur=frames.begin();cur!=frames.end();cur++) {
if (cur->isKey) keyFrames.push_back(i);
bytePos.Add(cur->filePos);
timecodes.push_back(cur->time);
i++;
}
}
static int mkv_round(double num) {
return (int)(num + .5);
}
/// @brief Set target to timecodes
/// @param target
/// @return
///
void MatroskaWrapper::SetToTimecodes(agi::vfr::Framerate &target) {
if (timecodes.size() <= 1) return;
std::vector<int> times;
times.reserve(timecodes.size());
std::transform(timecodes.begin(), timecodes.end(), std::back_inserter(times), &mkv_round);
target = agi::vfr::Framerate(times);
}
/// @brief Get subtitles
/// @param target
///
void MatroskaWrapper::GetSubtitles(AssFile *target) {
// Get info
int tracks = mkv_GetNumTracks(file);
TrackInfo *trackInfo;
//SegmentInfo *segInfo = mkv_GetFileInfo(file);
wxArrayInt tracksFound;
wxArrayString tracksNames;
int trackToRead = -1;
// Haali's library variables
ulonglong startTime, endTime, filePos;
unsigned int rt, frameSize, frameFlags;
//CompressedStream *cs = NULL;
// Find tracks
for (int track=0;track<tracks;track++) {
trackInfo = mkv_GetTrackInfo(file,track);
// Subtitle track
if (trackInfo->Type == 0x11) {
wxString CodecID = wxString(trackInfo->CodecID,*wxConvCurrent);
wxString TrackName = wxString(trackInfo->Name,*wxConvCurrent);
wxString TrackLanguage = wxString(trackInfo->Language,*wxConvCurrent);
// Known subtitle format
if (CodecID == "S_TEXT/SSA" || CodecID == "S_TEXT/ASS" || CodecID == "S_TEXT/UTF8") {
tracksFound.Add(track);
tracksNames.Add(wxString::Format("%i (",track) + CodecID + " " + TrackLanguage + "): " + TrackName);
}
}
}
// No tracks found
if (tracksFound.Count() == 0) {
target->LoadDefault(true);
Close();
throw "File has no recognised subtitle tracks.";
}
// No tracks found
if (tracksFound.empty())
throw MatroskaException("File has no recognised subtitle tracks.");
// Only one track found
else if (tracksFound.Count() == 1) {
trackToRead = tracksFound[0];
}
// Pick a track
else {
int choice = wxGetSingleChoiceIndex("Choose which track to read:","Multiple subtitle tracks found",tracksNames);
if (choice == -1) {
target->LoadDefault(true);
Close();
throw agi::UserCancelException("cancelled");
// Only one track found
if (tracksFound.size() == 1) {
trackToRead = tracksFound[0];
}
trackToRead = tracksFound[choice];
}
// Pick a track
else {
int choice = wxGetSingleChoiceIndex(_("Choose which track to read:"), _("Multiple subtitle tracks found"), tracksNames);
if (choice == -1)
throw agi::UserCancelException("cancelled");
// Picked track
if (trackToRead != -1) {
trackToRead = tracksFound[choice];
}
// Picked track
// Get codec type (0 = ASS/SSA, 1 = SRT)
trackInfo = mkv_GetTrackInfo(file,trackToRead);
wxString CodecID = wxString(trackInfo->CodecID,*wxConvCurrent);
@ -300,12 +132,7 @@ void MatroskaWrapper::GetSubtitles(AssFile *target) {
if (codecType == 0) {
// Read raw data
trackInfo = mkv_GetTrackInfo(file,trackToRead);
unsigned int privSize = trackInfo->CodecPrivateSize;
char *privData = new char[privSize+1];
memcpy(privData,trackInfo->CodecPrivate,privSize);
privData[privSize] = 0;
wxString privString(privData,wxConvUTF8);
delete[] privData;
wxString privString((const char *)trackInfo->CodecPrivate, wxConvUTF8, trackInfo->CodecPrivateSize);
// Load into file
wxString group = "[Script Info]";
@ -317,13 +144,7 @@ void MatroskaWrapper::GetSubtitles(AssFile *target) {
if (next[0] == '[') group = next;
target->AddLine(next,group,version,&group);
}
// Insert "[Events]"
//target->AddLine("",group,lasttime,version,&group);
//target->AddLine("[Events]",group,lasttime,version,&group);
//target->AddLine("Format: Layer, Start, End, Style, Name, MarginL, MarginR, MarginV, Effect, Text",group,lasttime,version,&group);
}
// Load default if it's SRT
else {
target->LoadDefault(false);
@ -333,10 +154,6 @@ void MatroskaWrapper::GetSubtitles(AssFile *target) {
SegmentInfo *segInfo = mkv_GetFileInfo(file);
longlong timecodeScale = mkv_TruncFloat(trackInfo->TimecodeScale) * segInfo->TimecodeScale;
// Prepare STD vector to get lines inserted
std::vector<wxString> subList;
long int order = -1;
// Progress bar
int totalTime = int(double(segInfo->Duration) / timecodeScale);
volatile bool canceled = false;
@ -344,155 +161,120 @@ void MatroskaWrapper::GetSubtitles(AssFile *target) {
progress->Show();
progress->SetProgress(0,1);
std::map<int, wxString> subList;
char *readBuf = 0;
size_t readBufSize = 0;
// Load blocks
mkv_SetTrackMask(file, ~(1 << trackToRead));
while (mkv_ReadFrame(file,0,&rt,&startTime,&endTime,&filePos,&frameSize,&frameFlags) == 0) {
// Canceled
if (canceled) {
target->LoadDefault(true);
Close();
delete readBuf;
throw agi::UserCancelException("cancelled");
}
// Read to temp
char *tmp = new char[frameSize+1];
fseek(input->fp, filePos, SEEK_SET);
fread(tmp,1,frameSize,input->fp);
tmp[frameSize] = 0;
wxString blockString(tmp,wxConvUTF8);
delete[] tmp;
if (frameSize > readBufSize) {
delete readBuf;
readBufSize = frameSize * 2;
readBuf = new char[readBufSize];
}
fseek(input.fp, filePos, SEEK_SET);
fread(readBuf, 1, frameSize, input.fp);
wxString blockString(readBuf, wxConvUTF8, frameSize);
// Get start and end times
//longlong timecodeScaleLow = timecodeScale / 100;
longlong timecodeScaleLow = 1000000;
AssTime subStart,subEnd;
subStart.SetMS(startTime / timecodeScaleLow);
subEnd.SetMS(endTime / timecodeScaleLow);
//wxLogMessage(subStart.GetASSFormated() + "-" + subEnd.GetASSFormated() + ": " + blockString);
// Process SSA/ASS
if (codecType == 0) {
// Get order number
int pos = blockString.Find(",");
wxString orderString = blockString.Left(pos);
orderString.ToLong(&order);
blockString = blockString.Mid(pos+1);
long order = 0, layer = 0;
blockString.BeforeFirst(',', &blockString).ToLong(&order);
blockString.BeforeFirst(',', &blockString).ToLong(&layer);
// Get layer number
pos = blockString.Find(",");
long int layer = 0;
if (pos) {
wxString layerString = blockString.Left(pos);
layerString.ToLong(&layer);
blockString = blockString.Mid(pos+1);
}
// Assemble final
blockString = wxString::Format("Dialogue: %i,",layer) + subStart.GetASSFormated() + "," + subEnd.GetASSFormated() + "," + blockString;
subList[order] = wxString::Format("Dialogue: %d,%s,%s,%s", layer, subStart.GetASSFormated(), subEnd.GetASSFormated(), blockString);
}
// Process SRT
else {
blockString = wxString("Dialogue: 0,") + subStart.GetASSFormated() + "," + subEnd.GetASSFormated() + ",Default,,0000,0000,0000,," + blockString;
blockString = wxString::Format("Dialogue: 0,%s,%s,%s", subStart.GetASSFormated(), subEnd.GetASSFormated(), blockString);
blockString.Replace("\r\n","\\N");
blockString.Replace("\r","\\N");
blockString.Replace("\n","\\N");
order++;
subList[subList.size()] = blockString;
}
// Insert into vector
if (subList.size() == (unsigned int)order) subList.push_back(blockString);
else {
if ((signed)(subList.size()) < order+1) subList.resize(order+1);
subList[order] = blockString;
}
// Update progress bar
progress->SetProgress(int(double(startTime) / 1000000.0),totalTime);
}
delete readBuf;
// Insert into file
wxString group = "[Events]";
int version = (CodecID == "S_TEXT/SSA");
for (unsigned int i=0;i<subList.size();i++) {
target->AddLine(subList[i],group,version,&group);
for (std::map<int, wxString>::iterator it = subList.begin(); it != subList.end(); ++it) {
target->AddLine(it->second,group,version,&group);
}
// Close progress bar
if (!canceled) progress->Destroy();
}
// No track to load
else {
target->LoadDefault(true);
catch (...) {
mkv_Close(file);
throw;
}
}
bool MatroskaWrapper::HasSubtitles(wxString const& filename) {
char err[2048];
MkvStdIO input(filename);
if (!input.fp) return false;
try {
MkvStdIO input(filename);
MatroskaFile* file = mkv_Open(&input, err, sizeof(err));
if (!file) return false;
MatroskaFile* file = mkv_Open(&input, err, sizeof(err));
if (!file) return false;
// Find tracks
int tracks = mkv_GetNumTracks(file);
for (int track = 0; track < tracks; track++) {
TrackInfo *trackInfo = mkv_GetTrackInfo(file, track);
// Find tracks
int tracks = mkv_GetNumTracks(file);
for (int track = 0; track < tracks; track++) {
TrackInfo *trackInfo = mkv_GetTrackInfo(file, track);
if (trackInfo->Type == 0x11) {
wxString CodecID = wxString(trackInfo->CodecID, *wxConvCurrent);
if (CodecID == "S_TEXT/SSA" || CodecID == "S_TEXT/ASS" || CodecID == "S_TEXT/UTF8") {
mkv_Close(file);
return true;
if (trackInfo->Type == 0x11) {
wxString CodecID = wxString(trackInfo->CodecID, *wxConvCurrent);
if (CodecID == "S_TEXT/SSA" || CodecID == "S_TEXT/ASS" || CodecID == "S_TEXT/UTF8") {
mkv_Close(file);
return true;
}
}
}
}
mkv_Close(file);
return false;
mkv_Close(file);
return false;
}
catch (...) {
// We don't care about why we couldn't read subtitles here
return false;
}
}
////////////////////////////// LOTS OF HAALI C CODE DOWN HERE ///////////////////////////////////////
#ifdef __VISUALC__
/// DOCME
#define std_fread fread
/// DOCME
#define std_fseek _fseeki64
/// DOCME
#define std_ftell _ftelli64
#else
/// DOCME
#define std_fread fread
/// DOCME
#define std_fseek fseeko
/// DOCME
#define std_ftell ftello
#endif
/// @brief STDIO class
/// @param _st
/// @param pos
/// @param buffer
/// @param count
/// @return
///
int StdIoRead(InputStream *_st, ulonglong pos, void *buffer, int count) {
MkvStdIO *st = (MkvStdIO *) _st;
size_t rd;
if (std_fseek(st->fp, pos, SEEK_SET)) {
if (fseek(st->fp, pos, SEEK_SET)) {
st->error = errno;
return -1;
}
rd = std_fread(buffer, 1, count, st->fp);
rd = fread(buffer, 1, count, st->fp);
if (rd == 0) {
if (feof(st->fp))
return 0;
@ -502,15 +284,8 @@ int StdIoRead(InputStream *_st, ulonglong pos, void *buffer, int count) {
return rd;
}
/* scan for a signature sig(big-endian) starting at file position pos
* return position of the first byte of signature or -1 if error/not found
/// @brief */
/// @param _st
/// @param start
/// @param signature
/// @return
///
/// @brief scan for a signature sig(big-endian) starting at file position pos
/// @return position of the first byte of signature or -1 if error/not found
longlong StdIoScan(InputStream *_st, ulonglong start, unsigned signature) {
MkvStdIO *st = (MkvStdIO *) _st;
int c;
@ -530,63 +305,32 @@ longlong StdIoScan(InputStream *_st, ulonglong start, unsigned signature) {
}
/// @brief This is used to limit readahead.
/// @param _st
/// @return Cache size
///
unsigned StdIoGetCacheSize(InputStream *_st) {
unsigned StdIoGetCacheSize(InputStream *st) {
return CACHESIZE;
}
/// @brief Get last error message
/// @param _st
/// @return Last error message
///
const char *StdIoGetLastError(InputStream *_st) {
MkvStdIO *st = (MkvStdIO *) _st;
return strerror(st->error);
const char *StdIoGetLastError(InputStream *st) {
return strerror(((MkvStdIO *)st)->error);
}
/// @brief Memory allocation, this is done via stdlib
/// @param _st
/// @param size
/// @return
///
void *StdIoMalloc(InputStream *_st, size_t size) {
void *StdIoMalloc(InputStream *, size_t size) {
return malloc(size);
}
/// @brief DOCME
/// @param _st
/// @param mem
/// @param size
/// @return
///
void *StdIoRealloc(InputStream *_st, void *mem, size_t size) {
return realloc(mem,size);
void *StdIoRealloc(InputStream *, void *mem, size_t size) {
return realloc(mem, size);
}
/// @brief DOCME
/// @param _st
/// @param mem
///
void StdIoFree(InputStream *_st, void *mem) {
void StdIoFree(InputStream *, void *mem) {
free(mem);
}
/// @brief DOCME
/// @param _st
/// @param cur
/// @param max
/// @return
///
int StdIoProgress(InputStream *_st, ulonglong cur, ulonglong max) {
int StdIoProgress(InputStream *, ulonglong cur, ulonglong max) {
return 1;
}
/// @brief DOCME
/// @param _st
/// @return
///
longlong StdIoGetFileSize(InputStream *_st) {
MkvStdIO *st = (MkvStdIO *) _st;
longlong epos = 0;
@ -597,9 +341,6 @@ longlong StdIoGetFileSize(InputStream *_st) {
return epos;
}
/// @brief DOCME
/// @param filename
///
MkvStdIO::MkvStdIO(wxString filename) {
read = StdIoRead;
scan = StdIoScan;
@ -610,10 +351,17 @@ MkvStdIO::MkvStdIO(wxString filename) {
memfree = StdIoFree;
progress = StdIoProgress;
getfilesize = StdIoGetFileSize;
wxFileName fname(filename);
fp = fopen(fname.GetShortPath().mb_str(wxConvUTF8),"rb");
#ifdef __VISUALC__
fp = _wfopen(fname.GetFullPath().wc_str(), L"rb");
#else
fp = fopen(fname.GetFullPath().utf8_str(), "rb");
#endif
if (fp) {
setvbuf(fp, NULL, _IOFBF, CACHESIZE);
}
else {
throw agi::FileNotFoundError(STD_STR(filename));
}
}

124
aegisub/src/mkv_wrap.h
View file

@ -35,76 +35,14 @@
///
#ifndef AGI_PRE
#include <stdint.h>
#include <stdio.h>
#include <list>
#include <vector>
#include <wx/dynarray.h>
#include <wx/string.h>
#endif
#include "MatroskaParser.h"
#include <libaegisub/exception.h>
DEFINE_SIMPLE_EXCEPTION_NOINNER(MatroskaException, agi::Exception, "matroksa_wrapper/generic")
class AssFile;
namespace agi { namespace vfr { class Framerate; } }
/// DOCME
/// @class MkvStdIO
/// @brief DOCME
///
/// DOCME
class MkvStdIO : public InputStream {
public:
MkvStdIO(wxString filename);
~MkvStdIO() { if (fp) fclose(fp); }
/// DOCME
FILE *fp;
/// DOCME
int error;
};
/// DOCME
/// @class MkvFrame
/// @brief DOCME
///
/// DOCME
class MkvFrame {
public:
/// DOCME
double time;
/// DOCME
bool isKey;
/// DOCME
int64_t filePos;
/// @brief DOCME
///
MkvFrame() {
time = 0;
isKey = false;
filePos = -1;
}
/// @brief DOCME
/// @param keyframe
/// @param timecode
/// @param _filePos
///
MkvFrame(bool keyframe,double timecode,int64_t _filePos) {
isKey = keyframe;
time = timecode;
filePos = _filePos;
}
};
bool operator < (MkvFrame &t1, MkvFrame &t2);
/// DOCME
/// @class MatroskaWrapper
@ -112,57 +50,9 @@ bool operator < (MkvFrame &t1, MkvFrame &t2);
///
/// DOCME
class MatroskaWrapper {
private:
/// DOCME
std::vector<int> keyFrames;
/// DOCME
std::vector<double> timecodes;
/// DOCME
wxArrayInt bytePos;
public:
/// DOCME
MkvStdIO *input;
/// DOCME
MatroskaFile *file;
/// DOCME
std::list<MkvFrame> frames;
/// DOCME
std::vector<MkvFrame> rawFrames;
MatroskaWrapper();
~MatroskaWrapper();
/// @brief DOCME
/// @return
///
bool IsOpen() { return file != NULL; }
void Open(wxString filename,bool parse=true);
void Close();
void Parse();
void SetToTimecodes(agi::vfr::Framerate &target);
/// @brief DOCME
/// @return
///
wxArrayInt GetBytePositions() { return bytePos; }
/// @brief DOCME
/// @return
///
unsigned int GetFrameCount() { return timecodes.size(); }
std::vector<int> GetKeyFrames();
void GetSubtitles(AssFile *target);
/// Check if the file is a matroska file with at least one subtitle track
static bool HasSubtitles(wxString const& filename);
/// DOCME
static MatroskaWrapper wrapper;
/// Load subtitles from a matroska file
static void GetSubtitles(wxString const& filename, AssFile *target);
};

6
aegisub/src/subtitle_format_mkv.cpp
View file

@ -53,8 +53,6 @@ wxArrayString MKVSubtitleFormat::GetReadWildcards() const {
return formats;
}
void MKVSubtitleFormat::ReadFile(wxString const& filename, wxString const& encoding) {
MatroskaWrapper wrap;
wrap.Open(filename, false);
wrap.GetSubtitles(GetAssFile());
void MKVSubtitleFormat::ReadFile(wxString const& filename, wxString const&) {
MatroskaWrapper::GetSubtitles(filename, GetAssFile());
}