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authortoma <toma@283d02a7-25f6-0310-bc7c-ecb5cbfe19da>2009-11-25 17:56:58 +0000
committertoma <toma@283d02a7-25f6-0310-bc7c-ecb5cbfe19da>2009-11-25 17:56:58 +0000
commite2de64d6f1beb9e492daf5b886e19933c1fa41dd (patch)
tree9047cf9e6b5c43878d5bf82660adae77ceee097a /kioslave/audiocd/plugins/flac/encoderflac.cpp
downloadtdemultimedia-e2de64d6f1beb9e492daf5b886e19933c1fa41dd.tar.gz
tdemultimedia-e2de64d6f1beb9e492daf5b886e19933c1fa41dd.zip
Copy the KDE 3.5 branch to branches/trinity for new KDE 3.5 features.
BUG:215923 git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/kdemultimedia@1054174 283d02a7-25f6-0310-bc7c-ecb5cbfe19da
Diffstat (limited to 'kioslave/audiocd/plugins/flac/encoderflac.cpp')
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diff --git a/kioslave/audiocd/plugins/flac/encoderflac.cpp b/kioslave/audiocd/plugins/flac/encoderflac.cpp
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+/*
+ Copyright (C) 2004 Allan Sandfeld Jensen <kde@carewolf.com>
+ Copyright (C) 2005 Benjamin Meyer <ben at meyerhome dot net>
+
+ This library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Library General Public
+ License as published by the Free Software Foundation; either
+ version 2 of the License, or (at your option) any later version.
+
+ This library 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
+ Library General Public License for more details.
+
+ You should have received a copy of the GNU Library General Public License
+ along with this library; see the file COPYING.LIB. If not, write to
+ the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ Boston, MA 02111-1307, USA.
+*/
+
+#include "encoderflac.h"
+
+#ifdef HAVE_LIBFLAC
+
+#include <FLAC/format.h>
+#include <FLAC/metadata.h>
+#include <FLAC/stream_encoder.h>
+
+#include <kconfig.h>
+#include <kdebug.h>
+
+
+extern "C"
+{
+ KDE_EXPORT void create_audiocd_encoders(KIO::SlaveBase *slave, QPtrList<AudioCDEncoder> &encoders)
+ {
+ encoders.append(new EncoderFLAC(slave));
+ }
+}
+
+class EncoderFLAC::Private {
+
+public:
+ FLAC__StreamEncoder *encoder;
+ FLAC__StreamMetadata** metadata;
+ KIO::SlaveBase* ioslave;
+ unsigned long data;
+};
+
+static FLAC__StreamEncoderWriteStatus WriteCallback(const FLAC__StreamEncoder *encoder, const FLAC__byte buffer[], unsigned bytes, unsigned samples, unsigned current_frame, void *client_data)
+{
+ EncoderFLAC::Private *d = (EncoderFLAC::Private*)client_data;
+
+ d->data += bytes;
+
+ QByteArray output;
+
+ if (bytes) {
+ output.setRawData((const char*)buffer, bytes);
+ d->ioslave->data(output);
+ output.resetRawData((const char*)buffer, bytes);
+ }
+
+ return FLAC__STREAM_ENCODER_WRITE_STATUS_OK;
+}
+
+static void MetadataCallback (const FLAC__StreamEncoder *encoder, const FLAC__StreamMetadata *metadata, void *client_data)
+{
+ // We do not have seekable writeback so we just discard the updated metadata
+
+}
+
+/*
+static FLAC__SeekableStreamEncoderSeekStatus SeekCallback(const FLAC__SeekableStreamEncoder *encoder, FLAC__uint64 absolute_byte_offset, void *client_data)
+{} ; */
+
+
+
+
+EncoderFLAC::EncoderFLAC(KIO::SlaveBase *slave) : AudioCDEncoder(slave) {
+ d = new Private();
+ d->ioslave = slave;
+ d->encoder = 0;
+}
+
+EncoderFLAC::~EncoderFLAC() {
+ if (d->encoder) FLAC__stream_encoder_delete(d->encoder);
+ delete d;
+}
+
+bool EncoderFLAC::init(){
+ d->encoder = FLAC__stream_encoder_new();
+ d->metadata = 0;
+ d->data = 0;
+ return true;
+}
+
+void EncoderFLAC::loadSettings() {
+// config->setGroup("FLAC");
+
+}
+
+// Estimate size to be 5/8 of uncompresed size.
+unsigned long EncoderFLAC::size(long time_secs) const {
+ long uncompressed = (time_secs * (44100*2*2));
+ return (uncompressed/8)*5 + 1000;
+}
+
+long EncoderFLAC::readInit(long size) {
+ kdDebug(7117) << "EncoderFLAC::readInit() called"<< endl;
+ d->data = 0;
+ FLAC__stream_encoder_set_write_callback(d->encoder, WriteCallback);
+ FLAC__stream_encoder_set_metadata_callback(d->encoder, MetadataCallback);
+ FLAC__stream_encoder_set_client_data(d->encoder, d);
+
+ // The options match approximely those of flac compression-level-3
+ FLAC__stream_encoder_set_do_mid_side_stereo(d->encoder, true);
+ FLAC__stream_encoder_set_loose_mid_side_stereo(d->encoder, true); // flac -M
+ FLAC__stream_encoder_set_max_lpc_order(d->encoder, 6); // flac -l6
+ FLAC__stream_encoder_set_min_residual_partition_order(d->encoder, 3);
+ FLAC__stream_encoder_set_max_residual_partition_order(d->encoder, 3); // flac -r3,3
+ FLAC__stream_encoder_set_blocksize(d->encoder, 4608);
+ FLAC__stream_encoder_set_streamable_subset(d->encoder, true);
+ if (size > 0)
+ FLAC__stream_encoder_set_total_samples_estimate(d->encoder, size/4);
+
+ FLAC__stream_encoder_init(d->encoder);
+ return d->data;
+}
+
+long EncoderFLAC::read(int16_t * buf, int frames)
+{
+ unsigned long olddata = d->data;
+ FLAC__int32 *buffer = new FLAC__int32[frames*2];
+ for(int i=0; i<frames*2;i++) {
+ buffer[i] = (FLAC__int32)buf[i];
+ }
+
+ bool res = FLAC__stream_encoder_process_interleaved (d->encoder, buffer, frames);
+ delete[] buffer;
+ return d->data - olddata;
+}
+
+long EncoderFLAC::readCleanup()
+{
+ FLAC__stream_encoder_finish(d->encoder);
+// FLAC__stream_encoder_delete(d->encoder);
+ if (d->metadata) {
+ FLAC__metadata_object_delete(d->metadata[0]);
+ delete[] d->metadata;
+ d->metadata = 0;
+ }
+ return 0;
+}
+
+void EncoderFLAC::fillSongInfo( KCDDB::CDInfo info, int track, const QString &comment )
+{
+ d->metadata = new FLAC__StreamMetadata*[1];
+ d->metadata[0] = FLAC__metadata_object_new(FLAC__METADATA_TYPE_VORBIS_COMMENT);
+// d->metadata[1] = FLAC__metadata_object_new(FLAC__METADATA_TYPE_PADDING);
+// d->metadata[2] = FLAC__metadata_object_new(FLAC__METADATA_TYPE_SEEKTABLE)
+
+ typedef QPair<QString, QVariant> Comment;
+ Comment comments[7] = { Comment("Title", info.trackInfoList[track].get("title")),
+ Comment("Artist", info.get("artist")),
+ Comment("Album", info.get("title")),
+ Comment("Genre", info.get("genre")),
+ Comment("Tracknumber", QString::number(track+1)),
+ Comment("Comment", comment),
+ Comment("Date", QString::null )};
+ if (info.get("Year").toInt() > 0) {
+ QDateTime dt(QDate(info.get("Year").toInt(), 1, 1));
+ comments[6] = Comment("Date", dt.toString(Qt::ISODate));
+ }
+
+ FLAC__StreamMetadata_VorbisComment_Entry entry;
+ QString field;
+ QCString cfield;
+ int num_comments = 0;
+
+ for(int i=0; i<7; i++) {
+ if (!comments[i].second.toString().isEmpty()) {
+ field = comments[i].first+"="+comments[i].second.toString();
+ cfield = field.utf8();
+ entry.entry = (FLAC__byte*)qstrdup(cfield);
+ entry.length = cfield.length();
+ // Insert in vorbiscomment and assign ownership of pointers to FLAC
+ FLAC__metadata_object_vorbiscomment_insert_comment(d->metadata[0], num_comments, entry, false);
+ num_comments++;
+ }
+ }
+
+ FLAC__stream_encoder_set_metadata(d->encoder, d->metadata, 1);
+}
+
+#endif // HAVE_LIBFLAC
+