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Audio crash in 1.09 fix(?) and small cleanup

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Originally committed to SVN as r17.
This commit is contained in:
Fredrik Mellbin 2006-01-21 01:09:53 +00:00
parent a1bf8a221e
commit 1cd44a438d
3 changed files with 23 additions and 28 deletions
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2
core/audio_display.h
View file

@ -66,7 +66,7 @@ private:
__int64 PositionSample;
float scale;
int samples;
int Position;
__int64 Position;
int samplesPercent;
int oldCurPos;
bool hasFocus;

48
core/audio_provider.cpp
View file

@ -40,6 +40,7 @@
#include <wx/filename.h>
#include <Mmreg.h>
#include "avisynth_wrap.h"
#include "utils.h"
#include "audio_provider.h"
#include "video_display.h"
#include "options.h"
@ -51,15 +52,6 @@ extern "C" {
#include <portaudio.h>
}
//stupid msvc
#ifndef max
#define max(a,b) (((a) > (b)) ? (a) : (b))
#endif
#ifndef min
#define min(a,b) (((a) < (b)) ? (a) : (b))
#endif
int AudioProvider::pa_refcount = 0;
//////////////
@ -222,30 +214,28 @@ void AudioProvider::ConvertToRAMCache(PClip &tempclip) {
blockcache[i] = NULL;
try {
for (int i = 0; i < blockcount - 1; i++)
blockcache[i] = new char[CacheBlockSize];
blockcache[blockcount-1] = new char[ssize-(blockcount-1)*CacheBlockSize];
for (int i = 0; i < blockcount; i++)
blockcache[i] = new char[MIN(CacheBlockSize,ssize-i*CacheBlockSize)];
} catch (...) {
for (int i = 0; i < blockcount; i++)
if (blockcache[i])
delete blockcache[i];
delete blockcache[i];
delete blockcache;
blockcache = NULL;
blockcount = 0;
if (wxMessageBox(_("Not enough ram available. Use disk cache instead?"),_("Audio Information"),wxICON_INFORMATION | wxYES_NO) == wxYES) {
ConvertToDiskCache(tempclip);
return;
} else
throw wxString(_T("Couldn't open audio, not enough ram available."));
ConvertToDiskCache(tempclip);
return;
} else
throw wxString(_T("Couldn't open audio, not enough ram available."));
}
// Start progress
volatile bool canceled = false;
DialogProgress *progress = new DialogProgress(NULL,_("Load audio"),&canceled,_("Reading into RAM"),0,num_samples);
progress->Show();
progress->SetProgress(0,blockcount-1);
progress->SetProgress(0,1);
// Read cache
int readsize = CacheBlockSize / bytes_per_sample;
@ -344,15 +334,21 @@ void AudioProvider::GetAudio(void *buf, __int64 start, __int64 count) {
// RAM Cache
if (type == AUDIO_PROVIDER_CACHE) {
int startblock = (start*bytes_per_sample) >> CacheBits;
int endblock = (min(start+count, num_samples)*bytes_per_sample) >> CacheBits;
__int64 start_offset = (start*bytes_per_sample) & (CacheBlockSize-1);
int i = (start*bytes_per_sample) >> CacheBits;
int start_offset = (start*bytes_per_sample) & (CacheBlockSize-1);
__int64 bytesremaining = count*bytes_per_sample;
while (bytesremaining) {
int readsize=MIN(bytesremaining,CacheBlockSize);
readsize = MIN(readsize,CacheBlockSize - start_offset);
memcpy(charbuf,(char *)(blockcache[i++]+start_offset),readsize);
for (int i = startblock; i <= endblock; i++) {
int readsize = min((i+1)*CacheBlockSize,(start+count)*bytes_per_sample) - max(i*CacheBlockSize,start*bytes_per_sample);
memcpy(charbuf,(char *)blockcache[i]+start_offset,readsize);
charbuf+=readsize;
start_offset = 0;
start_offset=0;
bytesremaining-=readsize;
}
}

1
core/audio_provider.h
View file

@ -56,7 +56,6 @@ class AudioDisplay;
enum AudioProviderType {
AUDIO_PROVIDER_NONE,
AUDIO_PROVIDER_AVS,
AUDIO_PROVIDER_VIDEO,
AUDIO_PROVIDER_CACHE,
AUDIO_PROVIDER_DISK_CACHE
};