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Save PCM .wav clips of lines (right click on line -> Create audio clip)

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Originally committed to SVN as r816.
This commit is contained in:
Dan Donovan 2007-01-17 05:06:17 +00:00
parent 92e6d4cb8f
commit 37865943da
3 changed files with 76 additions and 4 deletions
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4
aegisub/audio_karaoke.cpp
View file

@ -443,11 +443,11 @@ void AudioKaraoke::OnMouse(wxMouseEvent &event) {
Refresh(false);
}
// Released left button
else if (event.LeftUp()) {
else if (0&&event.LeftUp()) {
ReleaseMouse();
}
// Released right button; make a menu for selecting \k type
else if (event.RightUp()) {
else if (0&&event.RightUp()) {
ReleaseMouse();
AudioKaraokeTagMenu menu(this);

66
aegisub/subs_grid.cpp
View file

@ -81,6 +81,7 @@ BEGIN_EVENT_TABLE(SubtitlesGrid, BaseGrid)
EVT_MENU(MENU_JOIN_AS_KARAOKE,SubtitlesGrid::OnJoinAsKaraoke)
EVT_MENU(MENU_SPLIT_BY_KARAOKE,SubtitlesGrid::OnSplitByKaraoke)
EVT_MENU(MENU_RECOMBINE,SubtitlesGrid::OnRecombine)
EVT_MENU(MENU_AUDIOCLIP,SubtitlesGrid::OnAudioClip)
EVT_MENU_RANGE(MENU_SHOW_COL,MENU_SHOW_COL+15,SubtitlesGrid::OnShowColMenu)
END_EVENT_TABLE()
@ -185,6 +186,12 @@ void SubtitlesGrid::OnPopupMenu(bool alternate) {
menu.Append(MENU_RECOMBINE,_("Recombine Lines"),_T("Recombine subtitles when they have been split and merged"))->Enable(state);
menu.AppendSeparator();
//Make audio clip
state = sels==1&& parentFrame->audioBox->audioDisplay->loaded==true;
menu.Append(MENU_AUDIOCLIP,_("Create audio clip"),_T("Create an audio clip of the selected line"))->Enable(state);
menu.AppendSeparator();
// Copy/cut/paste
menu.Append(MENU_COPY,_("&Copy"),_T("Copies selected lines to clipboard"));
menu.Append(MENU_CUT,_("C&ut"),_T("Cuts selected lines to clipboard"));
@ -630,6 +637,65 @@ void SubtitlesGrid::OnRecombine(wxCommandEvent &event) {
}
//////////////
// Export audio clip of line
void SubtitlesGrid::OnAudioClip(wxCommandEvent &event) {
AudioDisplay *audioDisplay = parentFrame->audioBox->audioDisplay;
AudioProvider *provider = audioDisplay->provider;
AssDialogue *cur = GetDialogue(GetFirstSelRow());
__int64 num_samples = provider->GetNumSamples();
__int64 start = audioDisplay->GetSampleAtMS(cur->StartMS);
__int64 end = audioDisplay->GetSampleAtMS(cur->End.GetMS());
end=(end>=num_samples+1)?num_samples:end;
wxString filename = wxFileSelector(_("Save audio clip"),0,0,_T("wav"),0,wxSAVE|wxOVERWRITE_PROMPT,this);
if (!filename.empty()) {
std::ofstream outfile(filename,std::ios::binary);
size_t bufsize=(end-start)*provider->GetChannels()*provider->GetBytesPerSample();
int intval;
short shortval;
outfile << "RIFF";
outfile.write((char*)&(intval=bufsize+36),4);
outfile<< "WAVEfmt ";
outfile.write((char*)&(intval=16),4);
outfile.write((char*)&(shortval=1),2);
outfile.write((char*)&(shortval=provider->GetChannels()),2);
outfile.write((char*)&(intval=provider->GetSampleRate()),4);
outfile.write((char*)&(intval=provider->GetSampleRate()*provider->GetChannels()*provider->GetBytesPerSample()),4);
outfile.write((char*)&(intval=provider->GetChannels()*provider->GetBytesPerSample()),2);
outfile.write((char*)&(shortval=provider->GetBytesPerSample()<<3),2);
outfile << "data";
outfile.write((char*)&bufsize,4);
//samples per read
size_t spr = 65536/(provider->GetBytesPerSample()*provider->GetChannels());
for(int i=start;i<end;i+=spr) {
int len=(i+spr>end)?(end-i):spr;
size_t thisbufsize=len*(provider->GetBytesPerSample()*provider->GetChannels());
void *buf = malloc(thisbufsize);
if (buf) {
provider->GetAudio(buf,i,len);
outfile.write((char*)buf,thisbufsize);
free(buf);
}
else if (spr>128) {
//maybe we can allocate a smaller amount of memory
i-=spr; //effectively redo this loop again
spr=128;
}
else {
wxMessageBox(_("Couldn't allocate memory."),_("Error"),wxICON_ERROR | wxOK);
break;
}
}
outfile.close();
}
}
//////////////////////////////////////
// Clears grid and sets it to default
void SubtitlesGrid::LoadDefault (AssFile *_ass) {

10
aegisub/subs_grid.h
View file

@ -44,7 +44,11 @@
#include <vector>
#include <list>
#include "base_grid.h"
#include "audio_display.h"
#include "audio_provider.h"
#include "audio_box.h"
#include <iostream>
#include <fstream>
//////////////
// Prototypes
@ -93,6 +97,7 @@ private:
void OnJoinAsKaraoke(wxCommandEvent &event);
void OnSplitByKaraoke(wxCommandEvent &event);
void OnRecombine(wxCommandEvent &event);
void OnAudioClip(wxCommandEvent &event);
void OnShowColMenu(wxCommandEvent &event);
public:
@ -159,5 +164,6 @@ enum {
MENU_SET_VIDEO_TO_START,
MENU_SET_VIDEO_TO_END,
MENU_GRID_END,
MENU_SHOW_COL = 1250
MENU_SHOW_COL = 1250,
MENU_AUDIOCLIP
};