diff options
author | Taybin Rutkin <taybin@taybin.com> | 2005-09-24 19:13:41 +0000 |
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committer | Taybin Rutkin <taybin@taybin.com> | 2005-09-24 19:13:41 +0000 |
commit | 8af0757b61990767f2a85e68f535a5af9976fd79 (patch) | |
tree | f9e06fe12cac866d658a2e7074a61aa74d12f68f /libs/ardour/import.cc | |
parent | f9546e5c76afa101e9dbe8a057e72463b03430e5 (diff) |
libardour added.
git-svn-id: svn://localhost/trunk/ardour2@17 d708f5d6-7413-0410-9779-e7cbd77b26cf
Diffstat (limited to 'libs/ardour/import.cc')
-rw-r--r-- | libs/ardour/import.cc | 380 |
1 files changed, 380 insertions, 0 deletions
diff --git a/libs/ardour/import.cc b/libs/ardour/import.cc new file mode 100644 index 0000000000..b9ebe5859e --- /dev/null +++ b/libs/ardour/import.cc @@ -0,0 +1,380 @@ +/* + Copyright (C) 2000 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. + + $Id$ +*/ + +#include <cstdio> +#include <cstdlib> +#include <string> +#include <climits> +#include <cerrno> +#include <unistd.h> +#include <sys/stat.h> +#include <time.h> + +#include <sndfile.h> +#include <samplerate.h> + +#include <pbd/basename.h> +#include <ardour/ardour.h> +#include <ardour/session.h> +#include <ardour/diskstream.h> +#include <ardour/filesource.h> +#include <ardour/sndfile_helpers.h> +#include <ardour/audioregion.h> + +#include "i18n.h" + +using namespace ARDOUR; + +#define BLOCKSIZE 2048U + +int +Session::import_audiofile (import_status& status) +{ + SNDFILE *in; + FileSource **newfiles = 0; + ARDOUR::AudioRegion::SourceList sources; + SF_INFO info; + float *data = 0; + Sample **channel_data = 0; + long nfiles = 0; + long n; + string basepath; + string sounds_dir; + jack_nframes_t so_far; + char buf[PATH_MAX+1]; + int ret = -1; + vector<AudioRegion *> new_regions; + vector<string> new_paths; + struct tm* now; + string tmp_convert_file; + + if ((in = sf_open (status.pathname.c_str(), SFM_READ, &info)) == 0) { + error << compose(_("Import: cannot open input sound file \"%1\""), status.pathname) << endmsg; + return -1; + } else { + if ((uint32_t) info.samplerate != frame_rate()) { + sf_close(in); + status.doing_what = _("resampling audio"); + // resample to session frame_rate + if (sample_rate_convert(status, status.pathname, tmp_convert_file)) { + if ((in = sf_open (tmp_convert_file.c_str(), SFM_READ, &info)) == 0) { + error << compose(_("Import: cannot open converted sound file \"%1\""), tmp_convert_file) << endmsg; + return -1; + } + } else if (!status.cancel){ + // error + error << compose(_("Import: error while resampling sound file \"%1\""), status.pathname) << endmsg; + return -1; + } else { + // canceled + goto out; + } + } + } + + newfiles = new FileSource *[info.channels]; + for (n = 0; n < info.channels; ++n) { + newfiles[n] = 0; + } + + sounds_dir = discover_best_sound_dir (); + basepath = PBD::basename_nosuffix (status.pathname); + + for (n = 0; n < info.channels; ++n) { + + bool goodfile = false; + + do { + if (info.channels == 2) { + if (n == 0) { + snprintf (buf, sizeof(buf), "%s%s-L.wav", sounds_dir.c_str(), basepath.c_str()); + } else { + snprintf (buf, sizeof(buf), "%s%s-R.wav", sounds_dir.c_str(), basepath.c_str()); + } + } else if (info.channels > 1) { + snprintf (buf, sizeof(buf), "%s%s-c%lu.wav", sounds_dir.c_str(), basepath.c_str(), n+1); + } else { + snprintf (buf, sizeof(buf), "%s%s.wav", sounds_dir.c_str(), basepath.c_str()); + } + + if (::access (buf, F_OK) == 0) { + + /* if the file already exists, we must come up with + * a new name for it. for now we just keep appending + * _ to basepath + */ + + basepath += "_"; + + } else { + + goodfile = true; + } + + } while ( !goodfile); + + + try { + newfiles[n] = new FileSource (buf, frame_rate()); + } + + catch (failed_constructor& err) { + error << compose(_("Session::import_audiofile: cannot open new file source for channel %1"), n+1) << endmsg; + goto out; + } + + new_paths.push_back (buf); + nfiles++; + } + + + data = new float[BLOCKSIZE * info.channels]; + channel_data = new Sample * [ info.channels ]; + + for (n = 0; n < info.channels; ++n) { + channel_data[n] = new Sample[BLOCKSIZE]; + } + + so_far = 0; + + status.doing_what = _("converting audio"); + status.progress = 0.0; + + while (!status.cancel) { + + long nread; + long x; + long chn; + + if ((nread = sf_readf_float (in, data, BLOCKSIZE)) == 0) { + break; + } + + /* de-interleave */ + + for (chn = 0; chn < info.channels; ++chn) { + for (x = chn, n = 0; n < nread; x += info.channels, ++n) { + channel_data[chn][n] = (Sample) data[x]; + } + } + + /* flush to disk */ + + for (chn = 0; chn < info.channels; ++chn) { + newfiles[chn]->write (channel_data[chn], nread); + } + + so_far += nread; + status.progress = so_far / (float) (info.frames * info.channels); + } + + if (status.multichan) { + status.doing_what = _("building region"); + } else { + status.doing_what = _("building regions"); + } + + status.freeze = true; + + time_t xnow; + time (&xnow); + now = localtime (&xnow); + + if (status.cancel) { + goto out; + } + + if (status.multichan) { + /* all sources are used in a single multichannel region */ + for (n = 0; n < nfiles && !status.cancel; ++n) { + /* flush the final length to the header */ + newfiles[n]->update_header(0, *now, xnow); + sources.push_back(newfiles[n]); + } + + AudioRegion *r = new AudioRegion (sources, 0, newfiles[0]->length(), region_name_from_path (PBD::basename(basepath)), + 0, AudioRegion::Flag (AudioRegion::DefaultFlags | AudioRegion::WholeFile)); + + new_regions.push_back (r); + + } else { + for (n = 0; n < nfiles && !status.cancel; ++n) { + + /* flush the final length to the header */ + + newfiles[n]->update_header(0, *now, xnow); + + /* The sources had zero-length when created, which means that the Session + did not bother to create whole-file AudioRegions for them. Do it now. + */ + + AudioRegion *r = new AudioRegion (*newfiles[n], 0, newfiles[n]->length(), region_name_from_path (PBD::basename (newfiles[n]->name())), + 0, AudioRegion::Flag (AudioRegion::DefaultFlags | AudioRegion::WholeFile | AudioRegion::Import)); + + new_regions.push_back (r); + } + } + + /* save state so that we don't lose these new Sources */ + + if (!status.cancel) { + save_state (_name); + } + + ret = 0; + + out: + + if (data) { + delete [] data; + } + + if (channel_data) { + for (n = 0; n < info.channels; ++n) { + delete [] channel_data[n]; + } + delete [] channel_data; + } + + if (status.cancel) { + for (vector<AudioRegion *>::iterator i = new_regions.begin(); i != new_regions.end(); ++i) { + delete *i; + } + + for (vector<string>::iterator i = new_paths.begin(); i != new_paths.end(); ++i) { + unlink ((*i).c_str()); + } + } + + if (newfiles) { + delete [] newfiles; + } + + if (tmp_convert_file.length()) { + unlink(tmp_convert_file.c_str()); + } + + sf_close (in); + status.done = true; + return ret; +} + +string +Session::build_tmp_convert_name(string infile) +{ + string tmp_name(_path + "/." + PBD::basename (infile.c_str()) + "XXXXXX"); + char* tmp = new char[tmp_name.length() + 1]; + tmp_name.copy(tmp, string::npos); + tmp[tmp_name.length()] = 0; + mkstemp(tmp); + string outfile = tmp; + delete [] tmp; + + return outfile; +} + +bool +Session::sample_rate_convert (import_status& status, string infile, string& outfile) +{ + float input [BLOCKSIZE] ; + float output [BLOCKSIZE] ; + + SF_INFO sf_info; + SRC_STATE* src_state ; + SRC_DATA src_data ; + int err ; + sf_count_t output_count = 0 ; + sf_count_t input_count = 0; + + SNDFILE* in = sf_open(infile.c_str(), SFM_READ, &sf_info); + sf_count_t total_input_frames = sf_info.frames; + + outfile = build_tmp_convert_name(infile); + SNDFILE* out = sf_open(outfile.c_str(), SFM_RDWR, &sf_info); + if(!out) { + error << compose(_("Import: could not open temp file: %1"), outfile) << endmsg; + return false; + } + + sf_seek (in, 0, SEEK_SET) ; + sf_seek (out, 0, SEEK_SET) ; + + /* Initialize the sample rate converter. */ + if ((src_state = src_new (SRC_SINC_BEST_QUALITY, sf_info.channels, &err)) == 0) { + error << compose(_("Import: src_new() failed : %1"), src_strerror (err)) << endmsg ; + return false ; + } + + src_data.end_of_input = 0 ; /* Set this later. */ + + /* Start with zero to force load in while loop. */ + src_data.input_frames = 0 ; + src_data.data_in = input ; + + src_data.src_ratio = (1.0 * frame_rate()) / sf_info.samplerate ; + + src_data.data_out = output ; + src_data.output_frames = BLOCKSIZE / sf_info.channels ; + + while (!status.cancel) { + /* If the input buffer is empty, refill it. */ + if (src_data.input_frames == 0) { + src_data.input_frames = sf_readf_float (in, input, BLOCKSIZE / sf_info.channels) ; + src_data.data_in = input ; + + /* The last read will not be a full buffer, so snd_of_input. */ + if (src_data.input_frames < (int)BLOCKSIZE / sf_info.channels) { + src_data.end_of_input = SF_TRUE ; + } + } + + if ((err = src_process (src_state, &src_data))) { + error << compose(_("Import: %1"), src_strerror (err)) << endmsg ; + return false ; + } + + /* Terminate if at end */ + if (src_data.end_of_input && src_data.output_frames_gen == 0) { + break ; + } + + /* Write output. */ + sf_writef_float (out, output, src_data.output_frames_gen) ; + output_count += src_data.output_frames_gen ; + input_count += src_data.input_frames_used; + + src_data.data_in += src_data.input_frames_used * sf_info.channels ; + src_data.input_frames -= src_data.input_frames_used ; + + status.progress = (float) input_count / total_input_frames; + } + + src_state = src_delete (src_state) ; + sf_close(in); + sf_close(out); + + status.done = true; + + if (status.cancel) { + return false; + } else { + return true ; + } +} |