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.
25 #include <pbd/mountpoint.h>
26 #include <ardour/coreaudio_source.h>
30 using namespace ARDOUR;
32 string CoreAudioSource::peak_dir = "";
34 CoreAudioSource::CoreAudioSource (const XMLNode& node)
37 if (set_state (node)) {
38 throw failed_constructor();
42 SourceCreated (this); /* EMIT SIGNAL */
45 CoreAudioSource::CoreAudioSource (const string& idstr, bool build_peak)
48 init (idstr, build_peak);
51 SourceCreated (this); /* EMIT SIGNAL */
56 CoreAudioSource::init (const string& idstr, bool build_peak)
58 string::size_type pos;
68 if ((pos = idstr.find_last_of (':')) == string::npos) {
72 channel = atoi (idstr.substr (pos+1).c_str());
73 file = idstr.substr (0, pos);
77 /* note that we temporarily truncated _id at the colon */
79 err = FSPathMakeRef ((UInt8*)file.c_str(), ref, 0);
81 throw failed_constructor();
84 err = ExtAudioFileOpen (ref, &af);
86 ExtAudioFileDispose (af);
87 throw failed_constructor();
90 AudioStreamBasicDescription absd;
91 memset(&absd, 0, sizeof(absd));
92 size_t absd_size = sizeof(absd);
93 err = ExtAudioFileGetProperty(af,
94 kExtAudioFileProperty_FileDataFormat, &absd_size, &absd);
96 ExtAudioFileDispose (af);
97 throw failed_constructor();
99 n_channels = absd.mChannelsPerFrame;
101 if (channel >= n_channels) {
102 error << string_compose(_("CoreAudioSource: file only contains %1 channels; %2 is invalid as a channel number"), n_channels, channel) << endmsg;
103 ExtAudioFileDispose (af);
104 throw failed_constructor();
108 size_t prop_size = sizeof(ca_frames);
110 err = ExtAudioFileGetProperty(af, kExtAudioFileProperty_FileLengthFrames, &prop_size, &ca_frames);
112 ExtAudioFileDispose (af);
113 throw failed_constructor();
120 if (initialize_peakfile (false, file)) {
121 ExtAudioFileDispose (af);
122 throw failed_constructor ();
127 CoreAudioSource::~CoreAudioSource ()
130 GoingAway (this); /* EMIT SIGNAL */
133 ExtAudioFileDispose (af);
142 CoreAudioSource::read_unlocked (Sample *dst, jack_nframes_t start, jack_nframes_t cnt, char * workbuf) const
144 return read (dst, start, cnt, workbuf);
148 CoreAudioSource::read (Sample *dst, jack_nframes_t start, jack_nframes_t cnt, char * workbuf) const
150 OSStatus err = noErr;
152 err = ExtAudioFileSeek(af, start);
154 error << string_compose(_("CoreAudioSource: could not seek to frame %1 within %2 (%3)"), start, _name.substr (1), err) << endmsg;
159 ab.mNumberChannels = n_channels;
160 ab.mDataByteSize = cnt;
164 abl.mNumberBuffers = 1;
165 abl.mBuffers[1] = ab;
167 if (n_channels == 1) {
168 err = ExtAudioFileRead(af, (UInt32*) &cnt, &abl);
169 _read_data_count = cnt * sizeof(float);
173 uint32_t real_cnt = cnt * n_channels;
176 LockMonitor lm (_tmpbuf_lock, __LINE__, __FILE__);
178 if (tmpbufsize < real_cnt) {
183 tmpbufsize = real_cnt;
184 tmpbuf = new float[tmpbufsize];
187 ab.mDataByteSize = real_cnt;
190 err = ExtAudioFileRead(af, (UInt32*) &real_cnt, &abl);
191 float *ptr = tmpbuf + channel;
192 real_cnt /= n_channels;
194 /* stride through the interleaved data */
196 for (uint32_t n = 0; n < real_cnt; ++n) {
202 _read_data_count = cnt * sizeof(float);
208 CoreAudioSource::peak_path (string audio_path)
210 /* XXX hardly bombproof! fix me */
212 struct stat stat_file;
213 struct stat stat_mount;
215 string mp = mountpoint (audio_path);
217 stat (audio_path.c_str(), &stat_file);
218 stat (mp.c_str(), &stat_mount);
221 snprintf (buf, sizeof (buf), "%u-%u-%d.peak", stat_mount.st_ino, stat_file.st_ino, channel);
223 string res = peak_dir;
230 CoreAudioSource::old_peak_path (string audio_path)
232 return peak_path (audio_path);