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-rw-r--r--libs/ardour/export_file_io.cc445
1 files changed, 0 insertions, 445 deletions
diff --git a/libs/ardour/export_file_io.cc b/libs/ardour/export_file_io.cc
deleted file mode 100644
index 4c39e5c907..0000000000
--- a/libs/ardour/export_file_io.cc
+++ /dev/null
@@ -1,445 +0,0 @@
-/*
- Copyright (C) 2008 Paul Davis
- Author: Sakari Bergen
-
- 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 <string.h>
-
-#include "ardour/export_file_io.h"
-
-#include "ardour/export_failed.h"
-#include "pbd/failed_constructor.h"
-
-#include "i18n.h"
-
-using namespace std;
-using namespace Glib;
-using namespace PBD;
-
-namespace ARDOUR
-{
-
-/* SndfileWriterBase */
-
-SndfileWriterBase::SndfileWriterBase (int channels, nframes_t samplerate, int format, string const & path) :
- ExportFileWriter (path)
-{
- char errbuf[256];
-
- sf_info.channels = channels;
- sf_info.samplerate = samplerate;
- sf_info.format = format;
-
- if (!sf_format_check (&sf_info)) {
- throw ExportFailed (X_("Invalid format given for SndfileWriter!"));
- }
-
- if (path.length() == 0) {
- throw ExportFailed (X_("No output file specified for SndFileWriter"));
- }
-
- /* TODO add checks that the directory path exists, and also
- check if we are overwriting an existing file...
- */
-
- // Open file TODO make sure we have enough disk space for the output
- if (path.compare ("temp")) {
- if ((sndfile = sf_open (path.c_str(), SFM_WRITE, &sf_info)) == 0) {
- sf_error_str (0, errbuf, sizeof (errbuf) - 1);
- throw ExportFailed (string_compose(X_("Cannot open output file \"%1\" for SndFileWriter (%2)"), path, errbuf));
- }
- } else {
- FILE * file;
- if (!(file = tmpfile ())) {
- throw ExportFailed (X_("Cannot open tempfile"));
- }
- sndfile = sf_open_fd (fileno(file), SFM_RDWR, &sf_info, true);
- }
-}
-
-SndfileWriterBase::~SndfileWriterBase ()
-{
- sf_close (sndfile);
-}
-
-/* SndfileWriter */
-
-template <typename T>
-SndfileWriter<T>::SndfileWriter (int channels, nframes_t samplerate, int format, string const & path) :
- SndfileWriterBase (channels, samplerate, format, path)
-{
- // init write function
- init ();
-}
-
-template <>
-void
-SndfileWriter<float>::init ()
-{
- write_func = &sf_writef_float;
-}
-
-template <>
-void
-SndfileWriter<int>::init ()
-{
- write_func = &sf_writef_int;
-}
-
-template <>
-void
-SndfileWriter<short>::init ()
-{
- write_func = &sf_writef_short;
-}
-
-template <typename T>
-nframes_t
-SndfileWriter<T>::write (T * data, nframes_t frames)
-{
- char errbuf[256];
- nframes_t written = (*write_func) (sndfile, data, frames);
- if (written != frames) {
- sf_error_str (sndfile, errbuf, sizeof (errbuf) - 1);
- throw ExportFailed (string_compose(_("Could not write data to output file (%1)"), errbuf));
- }
-
- if (GraphSink<T>::end_of_input) {
- sf_write_sync (sndfile);
- }
-
- return frames;
-}
-
-template class SndfileWriter<short>;
-template class SndfileWriter<int>;
-template class SndfileWriter<float>;
-
-/* ExportTempFile */
-
-ExportTempFile::ExportTempFile (uint32_t channels, nframes_t samplerate) :
- SndfileWriter<float> (channels, samplerate, SF_FORMAT_RAW | SF_FORMAT_FLOAT | SF_ENDIAN_FILE, "temp"),
- channels (channels),
- reading (false),
- start (0),
- end (0),
- beginning_processed (false),
- end_processed (false),
- silence_beginning (0),
- silence_end (0),
- end_set (false)
-{
-}
-
-nframes_t
-ExportTempFile::read (float * data, nframes_t frames)
-{
- nframes_t frames_read = 0;
- nframes_t to_read = 0;
- sf_count_t read_status = 0;
-
- /* Initialize state at first read */
-
- if (!reading) {
- if (!end_set) {
- end = get_length();
- end_set = true;
- }
- locate_to (start);
- reading = true;
- }
-
- /* Add silence to beginning */
-
- if (silence_beginning > 0) {
- if (silence_beginning >= frames) {
- memset (data, 0, channels * frames * sizeof (float));
- silence_beginning -= frames;
- return frames;
- }
-
- memset (data, 0, channels * silence_beginning * sizeof (float));
-
- frames_read += silence_beginning;
- data += channels * silence_beginning;
- silence_beginning = 0;
- }
-
- /* Read file, but don't read past end */
-
- if (get_read_position() >= end) {
- // File already read, do nothing!
- } else {
- if ((get_read_position() + (frames - frames_read)) > end) {
- to_read = end - get_read_position();
- } else {
- to_read = frames - frames_read;
- }
-
- read_status = sf_readf_float (sndfile, data, to_read);
-
- frames_read += to_read;
- data += channels * to_read;
- }
-
- /* Check for errors */
-
- if (read_status != to_read) {
- throw ExportFailed (X_("Error reading temporary export file, export might not be complete!"));
- }
-
- /* Add silence at end */
-
- if (silence_end > 0) {
- to_read = frames - frames_read;
- if (silence_end < to_read) {
- to_read = silence_end;
- }
-
- memset (data, 0, channels * to_read * sizeof (float));
- silence_end -= to_read;
- frames_read += to_read;
- }
-
- return frames_read;
-}
-
-nframes_t
-ExportTempFile::trim_beginning (bool yn)
-{
- if (!yn) {
- start = 0;
- return start;
- }
-
- if (!beginning_processed) {
- process_beginning ();
- }
-
- start = silent_frames_beginning;
- return start;
-
-}
-
-nframes_t
-ExportTempFile::trim_end (bool yn)
-{
- end_set = true;
-
- if (!yn) {
- end = get_length();
- return end;
- }
-
- if (!end_processed) {
- process_end ();
- }
-
- end = silent_frames_end;
- return end;
-}
-
-
-void
-ExportTempFile::process_beginning ()
-{
- nframes_t frames = 1024;
- nframes_t frames_read;
- float * buf = new float[channels * frames];
-
- nframes_t pos = 0;
- locate_to (pos);
-
- while ((frames_read = _read (buf, frames)) > 0) {
- for (nframes_t i = 0; i < frames_read; i++) {
- for (uint32_t chn = 0; chn < channels; ++chn) {
- if (buf[chn + i * channels] != 0.0f) {
- --pos;
- goto out;
- }
- }
- ++pos;
- }
- }
-
- out:
-
- silent_frames_beginning = pos;
- beginning_processed = true;
-
- delete [] buf;
-}
-
-void
-ExportTempFile::process_end ()
-{
- nframes_t frames = 1024;
- nframes_t frames_read;
- float * buf = new float[channels * frames];
-
- nframes_t pos = get_length() - 1;
-
- while (pos > 0) {
- if (pos > frames) {
- locate_to (pos - frames);
- frames_read = _read (buf, frames);
- } else {
- // Last time reading
- locate_to (0);
- frames_read = _read (buf, pos);
- }
-
- for (nframes_t i = frames_read; i > 0; --i) {
- for (uint32_t chn = 0; chn < channels; ++chn) {
- if (buf[chn + (i - 1) * channels] != 0.0f) {
- goto out;
- }
- }
- --pos;
- }
- }
-
- out:
-
- silent_frames_end = pos;
- end_processed = true;
-
- delete [] buf;
-}
-
-void
-ExportTempFile::set_silence_beginning (nframes_t frames)
-{
- silence_beginning = frames;
-}
-
-void
-ExportTempFile::set_silence_end (nframes_t frames)
-{
- silence_end = frames;
-}
-
-sf_count_t
-ExportTempFile::get_length ()
-{
- sf_count_t pos = get_position();
- sf_count_t len = sf_seek (sndfile, 0, SEEK_END);
- locate_to (pos);
- return len;
-}
-
-sf_count_t
-ExportTempFile::get_position ()
-{
- return sf_seek (sndfile, 0, SEEK_CUR);
-}
-
-sf_count_t
-ExportTempFile::get_read_position ()
-{
- return sf_seek (sndfile, 0, SEEK_CUR | SFM_READ);
-}
-
-sf_count_t
-ExportTempFile::locate_to (nframes_t frames)
-{
- return sf_seek (sndfile, frames, SEEK_SET);
-}
-
-sf_count_t
-ExportTempFile::_read (float * data, nframes_t frames)
-{
- return sf_readf_float (sndfile, data, frames);
-}
-
-ExportFileFactory::FilePair
-ExportFileFactory::create (FormatPtr format, uint32_t channels, ustring const & filename)
-{
- switch (format->type()) {
- case ExportFormatBase::T_Sndfile:
- return create_sndfile (format, channels, filename);
-
- default:
- throw ExportFailed (X_("Invalid format given for ExportFileFactory::create!"));
- }
-}
-
-bool
-ExportFileFactory::check (FormatPtr format, uint32_t channels)
-{
- switch (format->type()) {
- case ExportFormatBase::T_Sndfile:
- return check_sndfile (format, channels);
-
- default:
- throw ExportFailed (X_("Invalid format given for ExportFileFactory::check!"));
- }
-}
-
-ExportFileFactory::FilePair
-ExportFileFactory::create_sndfile (FormatPtr format, unsigned int channels, ustring const & filename)
-{
- typedef boost::shared_ptr<SampleFormatConverter<short> > ShortConverterPtr;
- typedef boost::shared_ptr<SampleFormatConverter<int> > IntConverterPtr;
- typedef boost::shared_ptr<SampleFormatConverter<float> > FloatConverterPtr;
-
- typedef boost::shared_ptr<SndfileWriter<short> > ShortWriterPtr;
- typedef boost::shared_ptr<SndfileWriter<int> > IntWriterPtr;
- typedef boost::shared_ptr<SndfileWriter<float> > FloatWriterPtr;
-
- int real_format = format->format_id() | format->sample_format() | format->endianness();
-
- uint32_t data_width = sndfile_data_width (real_format);
-
- if (data_width == 8 || data_width == 16) {
-
- ShortConverterPtr sfc = ShortConverterPtr (new SampleFormatConverter<short> (channels, format->dither_type(), data_width));
- ShortWriterPtr sfw = ShortWriterPtr (new SndfileWriter<short> (channels, format->sample_rate(), real_format, filename));
- sfc->pipe_to (sfw);
-
- return std::make_pair (boost::static_pointer_cast<FloatSink> (sfc), boost::static_pointer_cast<ExportFileWriter> (sfw));
-
- } else if (data_width == 24 || data_width == 32) {
-
- IntConverterPtr sfc = IntConverterPtr (new SampleFormatConverter<int> (channels, format->dither_type(), data_width));
- IntWriterPtr sfw = IntWriterPtr (new SndfileWriter<int> (channels, format->sample_rate(), real_format, filename));
- sfc->pipe_to (sfw);
-
- return std::make_pair (boost::static_pointer_cast<FloatSink> (sfc), boost::static_pointer_cast<ExportFileWriter> (sfw));
-
- }
-
- FloatConverterPtr sfc = FloatConverterPtr (new SampleFormatConverter<float> (channels, format->dither_type(), data_width));
- FloatWriterPtr sfw = FloatWriterPtr (new SndfileWriter<float> (channels, format->sample_rate(), real_format, filename));
- sfc->pipe_to (sfw);
-
- return std::make_pair (boost::static_pointer_cast<FloatSink> (sfc), boost::static_pointer_cast<ExportFileWriter> (sfw));
-}
-
-bool
-ExportFileFactory::check_sndfile (FormatPtr format, unsigned int channels)
-{
- SF_INFO sf_info;
- sf_info.channels = channels;
- sf_info.samplerate = format->sample_rate ();
- sf_info.format = format->format_id () | format->sample_format ();
-
- return (sf_format_check (&sf_info) == SF_TRUE ? true : false);
-}
-
-} // namespace ARDOUR
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