/** Files created this way are never writable or removable */
SndFileSource::SndFileSource (Session& s, const string& path, int chn, Flag flags)
: Source(s, DataType::AUDIO, path, flags)
+ /* note that the origin of an external file is itself */
, AudioFileSource (s, path, Flag (flags & ~(Writable|Removable|RemovableIfEmpty|RemoveAtDestroy)))
{
_channel = chn;
}
/** This constructor is used to construct new files, not open existing ones. */
-SndFileSource::SndFileSource (Session& s, const string& path,
- SampleFormat sfmt, HeaderFormat hf, nframes_t rate, Flag flags)
+SndFileSource::SndFileSource (Session& s, const string& path, const string& origin,
+ SampleFormat sfmt, HeaderFormat hf, framecnt_t rate, Flag flags)
: Source(s, DataType::AUDIO, path, flags)
- , AudioFileSource (s, path, flags, sfmt, hf)
+ , AudioFileSource (s, path, origin, flags, sfmt, hf)
{
int fmt = 0;
- init_sndfile ();
+ init_sndfile ();
_file_is_new = true;
_info.samplerate = rate;
_info.format = fmt;
- if (open()) {
- throw failed_constructor();
- }
-
- if (writable() && (_flags & Broadcast)) {
-
- SNDFILE* sf = _descriptor->allocate ();
- if (sf == 0) {
- error << string_compose (_("could not allocate file %1"), _path) << endmsg;
- throw failed_constructor ();
- }
-
- if (!_broadcast_info) {
- _broadcast_info = new BroadcastInfo;
- }
-
- _broadcast_info->set_from_session (s, header_position_offset);
- _broadcast_info->set_description (string_compose ("BWF %1", _name));
-
- if (!_broadcast_info->write_to_file (sf)) {
- error << string_compose (_("cannot set broadcast info for audio file %1 (%2); dropping broadcast info for this file"),
- _path, _broadcast_info->get_error())
- << endmsg;
- _flags = Flag (_flags & ~Broadcast);
- delete _broadcast_info;
- _broadcast_info = 0;
- }
-
- _descriptor->release ();
- }
+ /* do not open the file here - do that in write_unlocked() as needed
+ */
}
void
{
string file;
+ _descriptor = 0;
+
// lets try to keep the object initalizations here at the top
xfade_buf = 0;
_broadcast_info = 0;
_descriptor = new SndFileDescriptor (_path, writable(), &_info);
_descriptor->Closed.connect_same_thread (file_manager_connection, boost::bind (&SndFileSource::file_closed, this));
SNDFILE* sf = _descriptor->allocate ();
-
+
if (sf == 0) {
char errbuf[256];
sf_error_str (0, errbuf, sizeof (errbuf) - 1);
if (writable()) {
sf_command (sf, SFC_SET_UPDATE_HEADER_AUTO, 0, SF_FALSE);
- }
- _descriptor->release ();
+ if (_flags & Broadcast) {
+
+ if (!_broadcast_info) {
+ _broadcast_info = new BroadcastInfo;
+ }
+
+ _broadcast_info->set_from_session (_session, header_position_offset);
+ _broadcast_info->set_description (string_compose ("BWF %1", _name));
+
+ if (!_broadcast_info->write_to_file (sf)) {
+ error << string_compose (_("cannot set broadcast info for audio file %1 (%2); dropping broadcast info for this file"),
+ _path, _broadcast_info->get_error())
+ << endmsg;
+ _flags = Flag (_flags & ~Broadcast);
+ delete _broadcast_info;
+ _broadcast_info = 0;
+ }
+ }
+ }
+
+ _descriptor->release ();
+ _open = true;
return 0;
}
framecnt_t
SndFileSource::read_unlocked (Sample *dst, framepos_t start, framecnt_t cnt) const
{
+ assert (cnt >= 0);
+
int32_t nread;
float *ptr;
uint32_t real_cnt;
framepos_t file_cnt;
+ if (writable() && !_open) {
+ /* file has not been opened yet - nothing written to it */
+ memset (dst, 0, sizeof (Sample) * cnt);
+ return cnt;
+ }
+
SNDFILE* sf = _descriptor->allocate ();
+
if (sf == 0) {
error << string_compose (_("could not allocate file %1 for reading."), _path) << endmsg;
return 0;
file_cnt = cnt;
}
+ assert (file_cnt >= 0);
+
if (file_cnt != cnt) {
framepos_t delta = cnt - file_cnt;
memset (dst+file_cnt, 0, sizeof (Sample) * delta);
}
if (_info.channels == 1) {
- nframes_t ret = sf_read_float (sf, dst, file_cnt);
- _read_data_count = ret * sizeof(float);
+ framecnt_t ret = sf_read_float (sf, dst, file_cnt);
if (ret != file_cnt) {
char errbuf[256];
sf_error_str (0, errbuf, sizeof (errbuf) - 1);
ptr += _info.channels;
}
- _read_data_count = cnt * sizeof(float);
-
_descriptor->release ();
return nread;
}
framecnt_t
SndFileSource::write_unlocked (Sample *data, framecnt_t cnt)
{
+ if (!_open && open()) {
+ return 0; // failure
+ }
+
if (destructive()) {
return destructive_write_unlocked (data, cnt);
} else {
compute_and_write_peaks (data, frame_pos, cnt, false, true);
}
- _write_data_count = cnt;
-
return cnt;
}
framecnt_t
SndFileSource::destructive_write_unlocked (Sample* data, framecnt_t cnt)
{
- framepos_t old_file_pos;
-
if (!writable()) {
warning << string_compose (_("attempt to write a non-writable audio file source (%1)"), _path) << endmsg;
return 0;
file_pos = capture_start_frame - _timeline_position;
// split cnt in half
- nframes_t subcnt = cnt / 2;
- nframes_t ofilepos = file_pos;
+ framecnt_t subcnt = cnt / 2;
+ framecnt_t ofilepos = file_pos;
// fade in
if (crossfade (data, subcnt, 1) != subcnt) {
}
}
- old_file_pos = file_pos;
update_length (file_pos, cnt);
if (_build_peakfiles) {
return -1;
}
+ if (!_open) {
+ warning << string_compose (_("attempt to flush an un-opened audio file source (%1)"), _path) << endmsg;
+ return -1;
+ }
+
SNDFILE* sf = _descriptor->allocate ();
if (sf == 0) {
error << string_compose (_("could not allocate file %1 to write header"), _path) << endmsg;
return -1;
}
-
+
int const r = sf_command (sf, SFC_UPDATE_HEADER_NOW, 0, 0) != SF_TRUE;
_descriptor->release ();
return -1;
}
+ if (!_open) {
+ warning << string_compose (_("attempt to set BWF info for an un-opened audio file source (%1)"), _path) << endmsg;
+ return -1;
+ }
+
if (!(_flags & Broadcast)) {
return 0;
}
_broadcast_info->set_time_reference (_timeline_position);
SNDFILE* sf = _descriptor->allocate ();
-
+
if (sf == 0 || !_broadcast_info->write_to_file (sf)) {
error << string_compose (_("cannot set broadcast info for audio file %1 (%2); dropping broadcast info for this file"),
_path, _broadcast_info->get_error())
SndFileSource::write_float (Sample* data, framepos_t frame_pos, framecnt_t cnt)
{
SNDFILE* sf = _descriptor->allocate ();
-
+
if (sf == 0 || sf_seek (sf, frame_pos, SEEK_SET|SFM_WRITE) < 0) {
char errbuf[256];
sf_error_str (0, errbuf, sizeof (errbuf) - 1);
SndFileSource::set_destructive (bool yn)
{
if (yn) {
- _flags = Flag (_flags | Destructive);
+ _flags = Flag (_flags | Writable | Destructive);
if (!xfade_buf) {
xfade_buf = new Sample[xfade_frames];
}
for (framecnt_t n = 0; n < xfade; ++n) {
xfade_buf[n] = (xfade_buf[n] * out[n]) + (fade_data[n] * in[n]);
}
-
+
} else if (xfade) {
/* long xfade length, has to be computed across several calls */
}
void
-SndFileSource::setup_standard_crossfades (Session const & s, nframes_t rate)
+SndFileSource::setup_standard_crossfades (Session const & s, framecnt_t rate)
{
/* This static method is assumed to have been called by the Session
before any DFS's are created.
info.samplerate = sf_info.samplerate;
info.channels = sf_info.channels;
info.length = sf_info.frames;
-
+
string major = sndfile_major_format(sf_info.format);
string minor = sndfile_minor_format(sf_info.format);
-
+
if (major.length() + minor.length() < 16) { /* arbitrary */
info.format_name = string_compose("%1/%2", major, minor);
} else {
bool
SndFileSource::clamped_at_unity () const
{
+ int const type = _info.format & SF_FORMAT_TYPEMASK;
int const sub = _info.format & SF_FORMAT_SUBMASK;
/* XXX: this may not be the full list of formats that are unclamped */
- return (sub != SF_FORMAT_FLOAT && sub != SF_FORMAT_DOUBLE);
+ return (sub != SF_FORMAT_FLOAT && sub != SF_FORMAT_DOUBLE && type != SF_FORMAT_OGG);
}
void
to make sure its time is as new as the audio
file.
*/
-
+
touch_peakfile ();
}
projects / ardour.git / blobdiff