2 Copyright (C) 2006 Paul Davis
4 This program is free software; you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 2 of the License, or
7 (at your option) any later version.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program; if not, write to the Free Software
16 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
20 #include <pbd/error.h>
21 #include <ardour/coreaudiosource.h>
22 #include <ardour/utils.h>
24 #include <appleutility/CAAudioFile.h>
25 #include <appleutility/CAStreamBasicDescription.h>
29 #include <AudioToolbox/AudioFormat.h>
31 using namespace ARDOUR;
34 CoreAudioSource::CoreAudioSource (Session& s, const XMLNode& node)
35 : AudioFileSource (s, node)
40 CoreAudioSource::CoreAudioSource (Session& s, const string& path, int chn, Flag flags)
41 : AudioFileSource(s, path, flags),
48 CoreAudioSource::init ()
53 cerr << "CoreAudioSource::init() " << name() << endl;
55 /* note that we temporarily truncated _id at the colon */
57 af.Open(_path.c_str());
59 CAStreamBasicDescription file_asbd (af.GetFileDataFormat());
60 n_channels = file_asbd.NumberChannels();
61 cerr << "number of channels: " << n_channels << endl;
63 if (channel >= n_channels) {
64 error << string_compose("CoreAudioSource: file only contains %1 channels; %2 is invalid as a channel number (%3)", n_channels, channel, name()) << endmsg;
65 throw failed_constructor();
68 _length = af.GetNumberFrames();
70 CAStreamBasicDescription client_asbd(file_asbd);
71 client_asbd.SetCanonical(client_asbd.NumberChannels(), false);
72 af.SetClientFormat (client_asbd);
73 } catch (CAXException& cax) {
74 error << string_compose ("CoreAudioSource: %1 (%2)", cax.mOperation, name()) << endmsg;
75 throw failed_constructor ();
79 CoreAudioSource::~CoreAudioSource ()
81 cerr << "CoreAudioSource::~CoreAudioSource() " << name() << endl;
82 GoingAway (); /* EMIT SIGNAL */
88 cerr << "deletion done" << endl;
92 CoreAudioSource::read_unlocked (Sample *dst, nframes_t start, nframes_t cnt) const
96 } catch (CAXException& cax) {
97 error << string_compose("CoreAudioSource: %1 to %2 (%3)", cax.mOperation, start, _name.substr (1)) << endmsg;
102 abl.mNumberBuffers = 1;
103 abl.mBuffers[0].mNumberChannels = n_channels;
105 UInt32 new_cnt = cnt;
106 if (n_channels == 1) {
107 abl.mBuffers[0].mDataByteSize = cnt * sizeof(Sample);
108 abl.mBuffers[0].mData = dst;
110 af.Read (new_cnt, &abl);
111 } catch (CAXException& cax) {
112 error << string_compose("CoreAudioSource: %1 (%2)", cax.mOperation, _name);
114 _read_data_count = new_cnt * sizeof(float);
118 UInt32 real_cnt = cnt * n_channels;
121 Glib::Mutex::Lock lm (_tmpbuf_lock);
123 if (tmpbufsize < real_cnt) {
128 tmpbufsize = real_cnt;
129 tmpbuf = new float[tmpbufsize];
132 abl.mBuffers[0].mDataByteSize = tmpbufsize * sizeof(Sample);
133 abl.mBuffers[0].mData = tmpbuf;
135 cerr << "channel: " << channel << endl;
138 af.Read (real_cnt, &abl);
139 } catch (CAXException& cax) {
140 error << string_compose("CoreAudioSource: %1 (%2)", cax.mOperation, _name);
142 float *ptr = tmpbuf + channel;
143 real_cnt /= n_channels;
145 /* stride through the interleaved data */
147 for (uint32_t n = 0; n < real_cnt; ++n) {
153 _read_data_count = cnt * sizeof(float);
159 CoreAudioSource::sample_rate() const
161 CAStreamBasicDescription client_asbd;
164 client_asbd = af.GetClientDataFormat ();
165 } catch (CAXException& cax) {
166 error << string_compose("CoreAudioSource: %1 (%2)", cax.mOperation, _name);
170 return client_asbd.mSampleRate;
174 CoreAudioSource::update_header (nframes_t when, struct tm&, time_t)
180 CoreAudioSource::get_soundfile_info (string path, SoundFileInfo& _info, string& error_msg)
183 ExtAudioFileRef af = 0;
188 if (FSPathMakeRef ((UInt8*)path.c_str(), &ref, 0) != noErr) {
192 if (ExtAudioFileOpen(&ref, &af) != noErr) {
196 AudioStreamBasicDescription absd;
197 memset(&absd, 0, sizeof(absd));
198 size = sizeof(AudioStreamBasicDescription);
199 if (ExtAudioFileGetProperty (af, kExtAudioFileProperty_FileDataFormat, &size, &absd) != noErr) {
203 _info.samplerate = absd.mSampleRate;
204 _info.channels = absd.mChannelsPerFrame;
206 size = sizeof(_info.length);
207 if (ExtAudioFileGetProperty(af, kExtAudioFileProperty_FileLengthFrames, &size, &_info.length) != noErr) {
211 size = sizeof(CFStringRef);
212 if (AudioFormatGetProperty(kAudioFormatProperty_FormatName, sizeof(absd), &absd, &size, &name) != noErr) {
216 _info.format_name = CFStringRefToStdString(name);
218 // XXX it would be nice to find a way to get this information if it exists
224 ExtAudioFileDispose (af);