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/*
Copyright (C) 2006 Paul Davis
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <sys/stat.h>
#include <unistd.h>
#include <sys/time.h>
#include <sndfile.h>
#include <pbd/mountpoint.h>
#include <ardour/externalsource.h>
#include <ardour/sndfilesource.h>
#include <ardour/sndfile_helpers.h>
// if these headers come before sigc++ is included
// the parser throws ObjC++ errors. (nil is a keyword)
#ifdef HAVE_COREAUDIO
#include <ardour/coreaudio_source.h>
#include <AudioToolbox/ExtendedAudioFile.h>
#include <AudioToolbox/AudioFormat.h>
#endif // HAVE_COREAUDIO
#include "i18n.h"
using namespace ARDOUR;
string ExternalSource::peak_dir = "";
ExternalSource::ExternalSource (const XMLNode& node)
: Source (node)
{
}
ExternalSource::ExternalSource (const string& idstr, bool build_peak)
: Source(build_peak)
{
}
ExternalSource::~ExternalSource ()
{
}
jack_nframes_t
ExternalSource::read_unlocked (Sample *dst, jack_nframes_t start, jack_nframes_t cnt, char * workbuf) const
{
return read (dst, start, cnt, workbuf);
}
string
ExternalSource::peak_path (string audio_path)
{
/* XXX hardly bombproof! fix me */
struct stat stat_file;
struct stat stat_mount;
string mp = mountpoint (audio_path);
stat (audio_path.c_str(), &stat_file);
stat (mp.c_str(), &stat_mount);
char buf[32];
snprintf (buf, sizeof (buf), "%ld-%ld-%d.peak", stat_mount.st_ino, stat_file.st_ino, channel);
string res = peak_dir;
res += buf;
return res;
}
#ifdef HAVE_COREAUDIO
ExternalSource*
ExternalSource::create (const XMLNode& node)
{
ExternalSource* es = 0;
try {
es = new CoreAudioSource (node);
}
catch (failed_constructor& err) {
es = new SndFileSource (node);
}
es = new SndFileSource (node);
return es;
}
#else
ExternalSource*
ExternalSource::create (const XMLNode& node)
{
return new SndFileSource (node);
}
#endif // HAVE_COREAUDIO
#ifdef HAVE_COREAUDIO
ExternalSource*
ExternalSource::create (const string& idstr, bool build_peak)
{
ExternalSource* es = 0;
try {
es = new CoreAudioSource (idstr, build_peak);
}
catch (failed_constructor& err) {
es = new SndFileSource (idstr, build_peak);
}
return es;
}
#else
ExternalSource*
ExternalSource::create (const string& idstr, bool build_peak)
{
return new SndFileSource (idstr, build_peak);
}
#endif // HAVE_COREAUDIO
#ifdef HAVE_COREAUDIO
std::string
CFStringRefToStdString(CFStringRef stringRef)
{
CFIndex size =
CFStringGetMaximumSizeForEncoding(CFStringGetLength(stringRef) ,
kCFStringEncodingASCII);
char *buf = new char[size];
std::string result;
if(CFStringGetCString(stringRef, buf, size, kCFStringEncodingASCII)) {
result = buf;
}
delete [] buf;
return result;
}
#endif // HAVE_COREAUDIO
bool
ExternalSource::get_soundfile_info (string path, SoundFileInfo& _info, string& error_msg)
{
#ifdef HAVE_COREAUDIO
OSStatus err = noErr;
FSRef ref;
ExtAudioFileRef af = 0;
size_t size;
CFStringRef name;
err = FSPathMakeRef ((UInt8*)path.c_str(), &ref, 0);
if (err != noErr) {
ExtAudioFileDispose (af);
goto libsndfile;
}
err = ExtAudioFileOpen(&ref, &af);
if (err != noErr) {
ExtAudioFileDispose (af);
goto libsndfile;
}
AudioStreamBasicDescription absd;
memset(&absd, 0, sizeof(absd));
size = sizeof(AudioStreamBasicDescription);
err = ExtAudioFileGetProperty(af,
kExtAudioFileProperty_FileDataFormat, &size, &absd);
if (err != noErr) {
ExtAudioFileDispose (af);
goto libsndfile;
}
_info.samplerate = absd.mSampleRate;
_info.channels = absd.mChannelsPerFrame;
size = sizeof(_info.length);
err = ExtAudioFileGetProperty(af, kExtAudioFileProperty_FileLengthFrames, &size, &_info.length);
if (err != noErr) {
ExtAudioFileDispose (af);
goto libsndfile;
}
size = sizeof(CFStringRef);
err = AudioFormatGetProperty(
kAudioFormatProperty_FormatName, sizeof(absd), &absd, &size, &name);
if (err != noErr) {
ExtAudioFileDispose (af);
goto libsndfile;
}
_info.format_name = CFStringRefToStdString(name);
ExtAudioFileDispose (af);
return true;
libsndfile:
#endif // HAVE_COREAUDIO
SNDFILE *sf;
SF_INFO sf_info;
sf_info.format = 0; // libsndfile says to clear this before sf_open().
if ((sf = sf_open ((char*) path.c_str(), SFM_READ, &sf_info)) == 0) {
char errbuf[256];
error_msg = sf_error_str (0, errbuf, sizeof (errbuf) - 1);
return false;
}
sf_close (sf);
_info.samplerate = sf_info.samplerate;
_info.channels = sf_info.channels;
_info.length = sf_info.frames;
_info.format_name = string_compose("Format: %1, %2",
sndfile_major_format(sf_info.format),
sndfile_minor_format(sf_info.format));
return true;
}
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