OggFLAC_API FLAC__bool OggFLAC__seekable_stream_encoder_set_metadata(OggFLAC__SeekableStreamEncoder *encoder, FLAC__StreamMetadata **metadata, unsigned num_blocks)
{
FLAC__ASSERT(0 != encoder);
FLAC__ASSERT(0 != encoder->private_);
FLAC__ASSERT(0 != encoder->protected_);
FLAC__ASSERT(0 != encoder->private_->FLAC_stream_encoder);
if(encoder->protected_->state != OggFLAC__SEEKABLE_STREAM_ENCODER_UNINITIALIZED)
return false;
/* reorder metadata if necessary to ensure that any VORBIS_COMMENT is the first, according to the mapping spec */
if(0 != metadata && num_blocks > 1) {
unsigned i;
for(i = 1; i < num_blocks; i++) {
if(0 != metadata[i] && metadata[i]->type == FLAC__METADATA_TYPE_VORBIS_COMMENT) {
FLAC__StreamMetadata *vc = metadata[i];
for( ; i > 0; i--)
metadata[i] = metadata[i-1];
metadata[0] = vc;
break;
}
}
}
if(0 != metadata && num_blocks > 0) {
unsigned i;
for(i = 0; i < num_blocks; i++) {
/* keep track of any SEEKTABLE block */
if(0 != metadata[i] && metadata[i]->type == FLAC__METADATA_TYPE_SEEKTABLE) {
encoder->private_->seek_table = &metadata[i]->data.seek_table;
break; /* take only the first one */
}
}
}
if(!OggFLAC__ogg_encoder_aspect_set_num_metadata(&encoder->protected_->ogg_encoder_aspect, num_blocks))
return false;
return FLAC__stream_encoder_set_metadata(encoder->private_->FLAC_stream_encoder, metadata, num_blocks);
}
static gint flac_open(void)
{
flac_encoder = FLAC__stream_encoder_new();
FLAC__stream_encoder_set_channels(flac_encoder, input.channels);
FLAC__stream_encoder_set_sample_rate(flac_encoder, input.frequency);
FLAC__stream_encoder_init_stream(flac_encoder, flac_write_cb, flac_seek_cb, flac_tell_cb,
NULL, output_file);
if (tuple)
{
FLAC__StreamMetadata *meta;
meta = FLAC__metadata_object_new(FLAC__METADATA_TYPE_VORBIS_COMMENT);
insert_vorbis_comment (meta, "title", tuple, FIELD_TITLE);
insert_vorbis_comment (meta, "artist", tuple, FIELD_ARTIST);
insert_vorbis_comment (meta, "album", tuple, FIELD_ALBUM);
insert_vorbis_comment (meta, "genre", tuple, FIELD_GENRE);
insert_vorbis_comment (meta, "comment", tuple, FIELD_COMMENT);
insert_vorbis_comment (meta, "date", tuple, FIELD_DATE);
insert_vorbis_comment (meta, "year", tuple, FIELD_YEAR);
insert_vorbis_comment (meta, "tracknumber", tuple, FIELD_TRACK_NUMBER);
FLAC__stream_encoder_set_metadata(flac_encoder, &meta, 1);
}
return 1;
}
void FlacAudioEncoder::set_tags(AudioMetaData::SharedPtr metadata)
{
_metadata[0] = FLAC__metadata_object_new(FLAC__METADATA_TYPE_VORBIS_COMMENT);
_metadata[1] = FLAC__metadata_object_new(FLAC__METADATA_TYPE_PADDING);
set_tag_value(_metadata[0], "TITLE", metadata->title());
set_tag_value(_metadata[0], "TRACKNUMBER", metadata->track_number());
set_tag_value(_metadata[0], "ARTIST", metadata->artist());
set_tag_value(_metadata[0], "ALBUM", metadata->album());
set_tag_value(_metadata[0], "ALBUMARTIST", metadata->artist());
set_tag_value(_metadata[0], "GENRE", metadata->genre());
set_tag_value(_metadata[0], "DATE", metadata->date());
set_tag_value(_metadata[0], "COMMENT", metadata->comment());
_metadata[1]->length = 4096;
FLAC__stream_encoder_set_metadata(_encoder, _metadata, 2);
}
virtual void WriteMetatags(const FileTags &tags)
{
ASSERT(inited && !started);
flac_metadata[0] = FLAC__metadata_object_new(FLAC__METADATA_TYPE_VORBIS_COMMENT);
AddCommentField("ENCODER", tags.encoder);
if(writeTags)
{
AddCommentField("SOURCEMEDIA", MPT_USTRING("tracked music file"));
AddCommentField("TITLE", tags.title );
AddCommentField("ARTIST", tags.artist );
AddCommentField("ALBUM", tags.album );
AddCommentField("DATE", tags.year );
AddCommentField("COMMENT", tags.comments );
AddCommentField("GENRE", tags.genre );
AddCommentField("CONTACT", tags.url );
AddCommentField("BPM", tags.bpm ); // non-standard
AddCommentField("TRACKNUMBER", tags.trackno );
}
FLAC__stream_encoder_set_metadata(encoder, flac_metadata, 1);
}
int main(int argc, char *argv[])
{
FLAC__bool ok = true;
FLAC__StreamEncoder *encoder = 0;
FLAC__StreamEncoderInitStatus init_status;
FLAC__StreamMetadata *metadata[2];
FLAC__StreamMetadata_VorbisComment_Entry entry;
FILE *fin;
unsigned sample_rate = 0;
unsigned channels = 0;
unsigned bps = 0;
if(argc != 3) {
fprintf(stderr, "usage: %s infile.wav outfile.flac\n", argv[0]);
return 1;
}
if((fin = fopen(argv[1], "rb")) == NULL) {
fprintf(stderr, "ERROR: opening %s for output\n", argv[1]);
return 1;
}
/* read wav header and validate it */
if(
fread(buffer, 1, 44, fin) != 44 ||
memcmp(buffer, "RIFF", 4) ||
memcmp(buffer+8, "WAVEfmt \020\000\000\000\001\000\002\000", 16) ||
memcmp(buffer+32, "\004\000\020\000data", 8)
) {
fprintf(stderr, "ERROR: invalid/unsupported WAVE file, only 16bps stereo WAVE in canonical form allowed\n");
fclose(fin);
return 1;
}
sample_rate = ((((((unsigned)buffer[27] << 8) | buffer[26]) << 8) | buffer[25]) << 8) | buffer[24];
channels = 2;
bps = 16;
total_samples = (((((((unsigned)buffer[43] << 8) | buffer[42]) << 8) | buffer[41]) << 8) | buffer[40]) / 4;
/* allocate the encoder */
if((encoder = FLAC__stream_encoder_new()) == NULL) {
fprintf(stderr, "ERROR: allocating encoder\n");
fclose(fin);
return 1;
}
ok &= FLAC__stream_encoder_set_verify(encoder, true);
ok &= FLAC__stream_encoder_set_compression_level(encoder, 5);
ok &= FLAC__stream_encoder_set_channels(encoder, channels);
ok &= FLAC__stream_encoder_set_bits_per_sample(encoder, bps);
ok &= FLAC__stream_encoder_set_sample_rate(encoder, sample_rate);
ok &= FLAC__stream_encoder_set_total_samples_estimate(encoder, total_samples);
/* now add some metadata; we'll add some tags and a padding block */
if(ok) {
if(
(metadata[0] = FLAC__metadata_object_new(FLAC__METADATA_TYPE_VORBIS_COMMENT)) == NULL ||
(metadata[1] = FLAC__metadata_object_new(FLAC__METADATA_TYPE_PADDING)) == NULL ||
/* there are many tag (vorbiscomment) functions but these are convenient for this particular use: */
!FLAC__metadata_object_vorbiscomment_entry_from_name_value_pair(&entry, "ARTIST", "Some Artist") ||
!FLAC__metadata_object_vorbiscomment_append_comment(metadata[0], entry, /*copy=*/false) || /* copy=false: let metadata object take control of entry's allocated string */
!FLAC__metadata_object_vorbiscomment_entry_from_name_value_pair(&entry, "YEAR", "1984") ||
!FLAC__metadata_object_vorbiscomment_append_comment(metadata[0], entry, /*copy=*/false)
) {
fprintf(stderr, "ERROR: out of memory or tag error\n");
ok = false;
}
metadata[1]->length = 1234; /* set the padding length */
ok = FLAC__stream_encoder_set_metadata(encoder, metadata, 2);
}
/* initialize encoder */
if(ok) {
init_status = FLAC__stream_encoder_init_file(encoder, argv[2], progress_callback, /*client_data=*/NULL);
if(init_status != FLAC__STREAM_ENCODER_INIT_STATUS_OK) {
fprintf(stderr, "ERROR: initializing encoder: %s\n", FLAC__StreamEncoderInitStatusString[init_status]);
ok = false;
}
}
/* read blocks of samples from WAVE file and feed to encoder */
if(ok) {
size_t left = (size_t)total_samples;
while(ok && left) {
size_t need = (left>READSIZE? (size_t)READSIZE : (size_t)left);
if(fread(buffer, channels*(bps/8), need, fin) != need) {
fprintf(stderr, "ERROR: reading from WAVE file\n");
ok = false;
}
else {
/* convert the packed little-endian 16-bit PCM samples from WAVE into an interleaved FLAC__int32 buffer for libFLAC */
size_t i;
for(i = 0; i < need*channels; i++) {
/* inefficient but simple and works on big- or little-endian machines */
pcm[i] = (FLAC__int32)(((FLAC__int16)(FLAC__int8)buffer[2*i+1] << 8) | (FLAC__int16)buffer[2*i]);
}
/* feed samples to encoder */
ok = FLAC__stream_encoder_process_interleaved(encoder, pcm, need);
}
left -= need;
}
}
ok &= FLAC__stream_encoder_finish(encoder);
fprintf(stderr, "encoding: %s\n", ok? "succeeded" : "FAILED");
fprintf(stderr, " state: %s\n", FLAC__StreamEncoderStateString[FLAC__stream_encoder_get_state(encoder)]);
/* now that encoding is finished, the metadata can be freed */
FLAC__metadata_object_delete(metadata[0]);
FLAC__metadata_object_delete(metadata[1]);
FLAC__stream_encoder_delete(encoder);
fclose(fin);
return 0;
}
static FLAC__StreamDecoderWriteStatus write_cb(const FLAC__StreamDecoder *decoder, const FLAC__Frame *frame, const FLAC__int32 *const buffer[], void *client_data)
{
FLACClientData &client = *static_cast<FLACClientData *>(client_data);
if(!client.started)
{
client.started = true;
client.delaySamples = static_cast<uint32_t>(0.5 + (delay * sampleRate) / 1000.0);
for(auto m = client.metadata.begin(); m != client.metadata.end(); m++)
{
auto metadata = *m;
if(metadata->type == FLAC__METADATA_TYPE_APPLICATION && !memcmp(metadata->data.application.id, "riff", 4))
{
if(metadata->length > 8 + sizeof(WAVSampleInfoChunk) && !memcmp(metadata->data.application.data, "smpl", 4))
{
WAVSampleInfoChunk *smpl = reinterpret_cast<WAVSampleInfoChunk *>(metadata->data.application.data + 8);
for(uint32_t i = 0; i < smpl->numLoops; i++)
{
WAVSampleLoop *loop = reinterpret_cast<WAVSampleLoop *>(smpl + 1) + i;
if(loop->loopStart >= client.delaySamples) loop->loopStart -= client.delaySamples;
if(loop->loopEnd >= client.delaySamples) loop->loopEnd -= client.delaySamples;
}
}
}
}
if(!FLAC__stream_encoder_set_metadata(client.encoder, client.metadata.data(), client.metadata.size()))
{
std::cerr << "Cannot set FLAC metadata!" << std::endl;
client.started = false;
return FLAC__STREAM_DECODER_WRITE_STATUS_ABORT;
}
if(FLAC__stream_encoder_init_FILE(client.encoder, client.of, nullptr, nullptr) != FLAC__STREAM_ENCODER_INIT_STATUS_OK)
{
std::cerr << "Cannot init FLAC encoder!" << std::endl;
client.started = false;
return FLAC__STREAM_DECODER_WRITE_STATUS_ABORT;
}
}
if(client.delaySamples >= frame->header.blocksize)
{
client.delaySamples -= frame->header.blocksize;
} else if(client.delaySamples > 0)
{
std::vector<const FLAC__int32 *> newBuffer(client.channels);
for(uint32_t chn = 0; chn < client.channels; chn++)
{
newBuffer[chn] = buffer[chn] + client.delaySamples;
}
FLAC__stream_encoder_process(client.encoder, newBuffer.data(), frame->header.blocksize - client.delaySamples);
client.delaySamples = 0;
} else
{
FLAC__stream_encoder_process(client.encoder, buffer, frame->header.blocksize);
}
return FLAC__STREAM_DECODER_WRITE_STATUS_CONTINUE;
}
bool Start(void *ctx, int iInChannels, int iInRate, int iInBits,
const char* title, const char* artist,
const char* albumartist, const char* album,
const char* year, const char* track, const char* genre,
const char* comment, int iTrackLength)
{
flac_context *context = (flac_context *)ctx;
if (!context || !context->encoder)
return false;
// we accept only 2 / 44100 / 16 atm
if (iInChannels != 2 || iInRate != 44100 || iInBits != 16)
return false;
FLAC__bool ok = 1;
ok &= FLAC__stream_encoder_set_verify(context->encoder, true);
ok &= FLAC__stream_encoder_set_channels(context->encoder, iInChannels);
ok &= FLAC__stream_encoder_set_bits_per_sample(context->encoder, iInBits);
ok &= FLAC__stream_encoder_set_sample_rate(context->encoder, iInRate);
ok &= FLAC__stream_encoder_set_total_samples_estimate(context->encoder, iTrackLength / 4);
ok &= FLAC__stream_encoder_set_compression_level(context->encoder, level);
// now add some metadata
FLAC__StreamMetadata_VorbisComment_Entry entry;
if (ok)
{
if (
(context->metadata[0] = FLAC__metadata_object_new(FLAC__METADATA_TYPE_VORBIS_COMMENT)) == NULL ||
(context->metadata[1] = FLAC__metadata_object_new(FLAC__METADATA_TYPE_PADDING)) == NULL ||
!FLAC__metadata_object_vorbiscomment_entry_from_name_value_pair(&entry, "ARTIST", artist) ||
!FLAC__metadata_object_vorbiscomment_append_comment(context->metadata[0], entry, false) ||
!FLAC__metadata_object_vorbiscomment_entry_from_name_value_pair(&entry, "ALBUM", album) ||
!FLAC__metadata_object_vorbiscomment_append_comment(context->metadata[0], entry, false) ||
!FLAC__metadata_object_vorbiscomment_entry_from_name_value_pair(&entry, "ALBUMARTIST", albumartist) ||
!FLAC__metadata_object_vorbiscomment_append_comment(context->metadata[0], entry, false) ||
!FLAC__metadata_object_vorbiscomment_entry_from_name_value_pair(&entry, "TITLE", title) ||
!FLAC__metadata_object_vorbiscomment_append_comment(context->metadata[0], entry, false) ||
!FLAC__metadata_object_vorbiscomment_entry_from_name_value_pair(&entry, "GENRE", genre) ||
!FLAC__metadata_object_vorbiscomment_append_comment(context->metadata[0], entry, false) ||
!FLAC__metadata_object_vorbiscomment_entry_from_name_value_pair(&entry, "TRACKNUMBER", track) ||
!FLAC__metadata_object_vorbiscomment_append_comment(context->metadata[0], entry, false) ||
!FLAC__metadata_object_vorbiscomment_entry_from_name_value_pair(&entry, "DATE", year) ||
!FLAC__metadata_object_vorbiscomment_append_comment(context->metadata[0], entry, false) ||
!FLAC__metadata_object_vorbiscomment_entry_from_name_value_pair(&entry, "COMMENT", comment) ||
!FLAC__metadata_object_vorbiscomment_append_comment(context->metadata[0], entry, false)
)
{
ok = false;
}
else
{
context->metadata[1]->length = 4096;
ok = FLAC__stream_encoder_set_metadata(context->encoder, context->metadata, 2);
}
}
// initialize encoder in stream mode
if (ok)
{
FLAC__StreamEncoderInitStatus init_status;
init_status = FLAC__stream_encoder_init_stream(context->encoder, write_callback_flac, seek_callback_flac, tell_callback_flac, NULL, context);
if (init_status != FLAC__STREAM_ENCODER_INIT_STATUS_OK)
{
ok = false;
}
}
if (!ok)
{
return false;
}
return true;
}
static int flac_output_open(const char *fname, const char *comment)
{
int fd;
int nch;
FLAC__StreamMetadata padding;
FLAC__StreamMetadata *metadata[4];
int num_metadata = 0;
#ifndef LEGACY_FLAC
FLAC__StreamEncoderInitStatus init_status;
#endif
FLAC_ctx *ctx;
if (flac_ctx == NULL)
flac_session_close();
if (!(flac_ctx = (FLAC_ctx *)calloc(sizeof(FLAC_ctx), 1))) {
ctl->cmsg(CMSG_ERROR, VERB_NORMAL, "%s", strerror(errno));
return -1;
}
ctx = flac_ctx;
ctx->in_bytes = ctx->out_bytes = 0;
if(strcmp(fname, "-") == 0) {
fd = 1; /* data to stdout */
if (comment == NULL)
comment = "(stdout)";
}
else {
/* Open the audio file */
fd = open(fname, FILE_OUTPUT_MODE);
if(fd < 0) {
ctl->cmsg(CMSG_ERROR, VERB_NORMAL, "%s: %s",
fname, strerror(errno));
return -1;
}
if(comment == NULL)
comment = fname;
}
dpm.fd = fd;
nch = (dpm.encoding & PE_MONO) ? 1 : 2;
if (0 < flac_options.padding) {
padding.is_last = 0;
padding.type = FLAC__METADATA_TYPE_PADDING;
padding.length = flac_options.padding;
metadata[num_metadata++] = &padding;
}
#ifdef LEGACY_FLAC
#ifdef AU_OGGFLAC
if (flac_options.isogg) {
if ((ctx->encoder.ogg.stream = OggFLAC__stream_encoder_new()) == NULL) {
ctl->cmsg(CMSG_ERROR, VERB_NORMAL, "cannot create OggFLAC stream");
flac_session_close();
return -1;
}
OggFLAC__stream_encoder_set_channels(ctx->encoder.ogg.stream, nch);
/* 16bps only */
OggFLAC__stream_encoder_set_bits_per_sample(ctx->encoder.ogg.stream, 16);
/* set sequential number for serial */
serial_number++;
if (serial_number == 1) {
srand(time(NULL));
serial_number = rand();
}
OggFLAC__stream_encoder_set_serial_number(ctx->encoder.ogg.stream, serial_number);
OggFLAC__stream_encoder_set_verify(ctx->encoder.ogg.stream, flac_options.verify);
if (!FLAC__format_sample_rate_is_valid(dpm.rate)) {
ctl->cmsg(CMSG_ERROR, VERB_NORMAL, "invalid sampling rate %d",
dpm.rate);
flac_session_close();
return -1;
}
OggFLAC__stream_encoder_set_sample_rate(ctx->encoder.ogg.stream, dpm.rate);
OggFLAC__stream_encoder_set_qlp_coeff_precision(ctx->encoder.ogg.stream, flac_options.qlp_coeff_precision);
/* expensive! */
OggFLAC__stream_encoder_set_do_qlp_coeff_prec_search(ctx->encoder.ogg.stream, flac_options.qlp_coeff_precision_search);
if (nch == 2) {
OggFLAC__stream_encoder_set_do_mid_side_stereo(ctx->encoder.ogg.stream, flac_options.mid_side);
OggFLAC__stream_encoder_set_loose_mid_side_stereo(ctx->encoder.ogg.stream, flac_options.adaptive_mid_side);
}
OggFLAC__stream_encoder_set_max_lpc_order(ctx->encoder.ogg.stream, flac_options.max_lpc_order);
OggFLAC__stream_encoder_set_min_residual_partition_order(ctx->encoder.ogg.stream, flac_options.min_residual_partition_order);
OggFLAC__stream_encoder_set_max_residual_partition_order(ctx->encoder.ogg.stream, flac_options.max_residual_partition_order);
OggFLAC__stream_encoder_set_blocksize(ctx->encoder.ogg.stream, flac_options.blocksize);
OggFLAC__stream_encoder_set_client_data(ctx->encoder.ogg.stream, ctx);
if (0 < num_metadata)
OggFLAC__stream_encoder_set_metadata(ctx->encoder.ogg.stream, metadata, num_metadata);
/* set callback */
OggFLAC__stream_encoder_set_write_callback(ctx->encoder.ogg.stream, ogg_stream_encoder_write_callback);
ctx->state.ogg = OggFLAC__stream_encoder_init(ctx->encoder.ogg.stream);
if (ctx->state.ogg != OggFLAC__STREAM_ENCODER_OK) {
ctl->cmsg(CMSG_ERROR, VERB_NORMAL, "cannot create OggFLAC state (%s)",
OggFLAC__StreamEncoderStateString[ctx->state.ogg]);
flac_session_close();
return -1;
}
}
else
#endif /* AU_OGGFLAC */
if (flac_options.seekable) {
if ((ctx->encoder.flac.s_stream = FLAC__seekable_stream_encoder_new()) == NULL) {
ctl->cmsg(CMSG_ERROR, VERB_NORMAL, "cannot create FLAC stream");
flac_session_close();
return -1;
}
FLAC__seekable_stream_encoder_set_channels(ctx->encoder.flac.s_stream, nch);
/* 16bps only */
FLAC__seekable_stream_encoder_set_bits_per_sample(ctx->encoder.flac.s_stream, 16);
FLAC__seekable_stream_encoder_set_verify(ctx->encoder.flac.s_stream, flac_options.verify);
if (!FLAC__format_sample_rate_is_valid(dpm.rate)) {
ctl->cmsg(CMSG_ERROR, VERB_NORMAL, "invalid sampling rate %d",
dpm.rate);
flac_session_close();
return -1;
}
FLAC__seekable_stream_encoder_set_sample_rate(ctx->encoder.flac.s_stream, dpm.rate);
FLAC__seekable_stream_encoder_set_qlp_coeff_precision(ctx->encoder.flac.s_stream, flac_options.qlp_coeff_precision);
/* expensive! */
FLAC__seekable_stream_encoder_set_do_qlp_coeff_prec_search(ctx->encoder.flac.s_stream, flac_options.qlp_coeff_precision_search);
if (nch == 2) {
FLAC__seekable_stream_encoder_set_do_mid_side_stereo(ctx->encoder.flac.s_stream, flac_options.mid_side);
FLAC__seekable_stream_encoder_set_loose_mid_side_stereo(ctx->encoder.flac.s_stream, flac_options.adaptive_mid_side);
}
FLAC__seekable_stream_encoder_set_max_lpc_order(ctx->encoder.flac.s_stream, flac_options.max_lpc_order);
FLAC__seekable_stream_encoder_set_min_residual_partition_order(ctx->encoder.flac.s_stream, flac_options.min_residual_partition_order);
FLAC__seekable_stream_encoder_set_max_residual_partition_order(ctx->encoder.flac.s_stream, flac_options.max_residual_partition_order);
FLAC__seekable_stream_encoder_set_blocksize(ctx->encoder.flac.s_stream, flac_options.blocksize);
FLAC__seekable_stream_encoder_set_client_data(ctx->encoder.flac.s_stream, ctx);
if (0 < num_metadata)
FLAC__seekable_stream_encoder_set_metadata(ctx->encoder.flac.s_stream, metadata, num_metadata);
/* set callback */
/* FLAC__seekable_stream_encoder_set_metadata_callback(ctx->encoder.flac.s_stream, flac_seekable_stream_encoder_metadata_callback); /* */
#if (!defined(__BORLANDC__) && !defined(__POCC__))
FLAC__stream_encoder_set_metadata_callback(ctx->encoder.flac.s_stream, flac_seekable_stream_encoder_metadata_callback); /* */
#endif
FLAC__seekable_stream_encoder_set_write_callback(ctx->encoder.flac.s_stream, flac_seekable_stream_encoder_write_callback);
ctx->state.s_flac = FLAC__seekable_stream_encoder_init(ctx->encoder.flac.s_stream);
if (ctx->state.s_flac != FLAC__SEEKABLE_STREAM_ENCODER_OK) {
ctl->cmsg(CMSG_ERROR, VERB_NORMAL, "cannot create FLAC state (%s)",
FLAC__SeekableStreamEncoderStateString[ctx->state.s_flac]);
flac_session_close();
return -1;
}
}
else
{
if ((ctx->encoder.flac.stream = FLAC__stream_encoder_new()) == NULL) {
ctl->cmsg(CMSG_ERROR, VERB_NORMAL, "cannot create FLAC stream");
flac_session_close();
return -1;
}
FLAC__stream_encoder_set_channels(ctx->encoder.flac.stream, nch);
/* 16bps only */
FLAC__stream_encoder_set_bits_per_sample(ctx->encoder.flac.stream, 16);
FLAC__stream_encoder_set_verify(ctx->encoder.flac.stream, flac_options.verify);
if (!FLAC__format_sample_rate_is_valid(dpm.rate)) {
ctl->cmsg(CMSG_ERROR, VERB_NORMAL, "invalid sampling rate %d",
dpm.rate);
flac_session_close();
return -1;
}
FLAC__stream_encoder_set_sample_rate(ctx->encoder.flac.stream, dpm.rate);
FLAC__stream_encoder_set_qlp_coeff_precision(ctx->encoder.flac.stream, flac_options.qlp_coeff_precision);
/* expensive! */
FLAC__stream_encoder_set_do_qlp_coeff_prec_search(ctx->encoder.flac.stream, flac_options.qlp_coeff_precision_search);
if (nch == 2) {
FLAC__stream_encoder_set_do_mid_side_stereo(ctx->encoder.flac.stream, flac_options.mid_side);
FLAC__stream_encoder_set_loose_mid_side_stereo(ctx->encoder.flac.stream, flac_options.adaptive_mid_side);
}
FLAC__stream_encoder_set_max_lpc_order(ctx->encoder.flac.stream, flac_options.max_lpc_order);
FLAC__stream_encoder_set_min_residual_partition_order(ctx->encoder.flac.stream, flac_options.min_residual_partition_order);
FLAC__stream_encoder_set_max_residual_partition_order(ctx->encoder.flac.stream, flac_options.max_residual_partition_order);
FLAC__stream_encoder_set_blocksize(ctx->encoder.flac.stream, flac_options.blocksize);
FLAC__stream_encoder_set_client_data(ctx->encoder.flac.stream, ctx);
if (0 < num_metadata)
FLAC__stream_encoder_set_metadata(ctx->encoder.flac.stream, metadata, num_metadata);
/* set callback */
FLAC__stream_encoder_set_metadata_callback(ctx->encoder.flac.stream, flac_stream_encoder_metadata_callback);
FLAC__stream_encoder_set_write_callback(ctx->encoder.flac.stream, flac_stream_encoder_write_callback);
ctx->state.flac = FLAC__stream_encoder_init(ctx->encoder.flac.stream);
if (ctx->state.flac != FLAC__STREAM_ENCODER_OK) {
ctl->cmsg(CMSG_ERROR, VERB_NORMAL, "cannot create FLAC state (%s)",
FLAC__StreamEncoderStateString[ctx->state.flac]);
flac_session_close();
return -1;
}
}
#else /* !LEGACY_FLAC */
if ((ctx->encoder.flac.stream = FLAC__stream_encoder_new()) == NULL) {
ctl->cmsg(CMSG_ERROR, VERB_NORMAL, "cannot create FLAC stream");
flac_session_close();
return -1;
}
#ifdef AU_OGGFLAC
if (flac_options.isogg) {
/* set sequential number for serial */
serial_number++;
if (serial_number == 1) {
srand(time(NULL));
serial_number = rand();
}
FLAC__stream_encoder_set_ogg_serial_number(ctx->encoder.flac.stream, serial_number);
}
#endif /* AU_OGGFLAC */
FLAC__stream_encoder_set_channels(ctx->encoder.flac.stream, nch);
/* 16bps only */
FLAC__stream_encoder_set_bits_per_sample(ctx->encoder.flac.stream, 16);
FLAC__stream_encoder_set_verify(ctx->encoder.flac.stream, flac_options.verify);
if (!FLAC__format_sample_rate_is_valid(dpm.rate)) {
ctl->cmsg(CMSG_ERROR, VERB_NORMAL, "invalid sampling rate %d", dpm.rate);
flac_session_close();
return -1;
}
FLAC__stream_encoder_set_sample_rate(ctx->encoder.flac.stream, dpm.rate);
FLAC__stream_encoder_set_qlp_coeff_precision(ctx->encoder.flac.stream, flac_options.qlp_coeff_precision);
/* expensive! */
FLAC__stream_encoder_set_do_qlp_coeff_prec_search(ctx->encoder.flac.stream, flac_options.qlp_coeff_precision_search);
if (nch == 2) {
FLAC__stream_encoder_set_do_mid_side_stereo(ctx->encoder.flac.stream, flac_options.mid_side);
FLAC__stream_encoder_set_loose_mid_side_stereo(ctx->encoder.flac.stream, flac_options.adaptive_mid_side);
}
FLAC__stream_encoder_set_max_lpc_order(ctx->encoder.flac.stream, flac_options.max_lpc_order);
FLAC__stream_encoder_set_min_residual_partition_order(ctx->encoder.flac.stream, flac_options.min_residual_partition_order);
FLAC__stream_encoder_set_max_residual_partition_order(ctx->encoder.flac.stream, flac_options.max_residual_partition_order);
FLAC__stream_encoder_set_blocksize(ctx->encoder.flac.stream, flac_options.blocksize);
if (0 < num_metadata)
FLAC__stream_encoder_set_metadata(ctx->encoder.flac.stream, metadata, num_metadata);
#ifdef AU_OGGFLAC
if (flac_options.isogg)
init_status = FLAC__stream_encoder_init_ogg_stream(ctx->encoder.flac.stream, flac_stream_encoder_write_callback, NULL, NULL, NULL, ctx);
else
#endif
init_status = FLAC__stream_encoder_init_stream(ctx->encoder.flac.stream, flac_stream_encoder_write_callback, NULL, NULL, NULL, ctx);
if (init_status != FLAC__STREAM_ENCODER_INIT_STATUS_OK) {
ctl->cmsg(CMSG_ERROR, VERB_NORMAL, "cannot create FLAC encoder (init status: %s)", FLAC__StreamEncoderInitStatusString[init_status]);
flac_session_close();
return -1;
}
#endif
return 0;
}
int __stdcall
WWFlacRW_EncodeRun(int id, const wchar_t *path)
{
FILE *fp = NULL;
errno_t ercd;
int64_t left;
int64_t readPos;
int64_t writePos;
FLAC__bool ok = true;
FLAC__int32 *pcm = NULL;
if (NULL == path || wcslen(path) == 0) {
return FRT_BadParams;
}
FLAC__StreamEncoderInitStatus initStatus = FLAC__STREAM_ENCODER_INIT_STATUS_ENCODER_ERROR;
FlacEncodeInfo *fei = FlacTInfoFindById<FlacEncodeInfo>(g_flacEncodeInfoMap, id);
if (NULL == fei) {
return FRT_IdNotFound;
}
if (0 < fei->pictureBytes && fei->pictureData == NULL) {
dprintf("%s picture data is not set yet.\n", __FUNCTION__);
return FRT_DataNotReady;
}
assert(fei->buffPerChannel);
ok = FLAC__stream_encoder_set_metadata(fei->encoder, &fei->flacMetaArray[0], fei->flacMetaCount);
if(!ok) {
dprintf("FLAC__stream_encoder_set_metadata failed\n");
fei->errorCode = FRT_OtherError;
goto end;
}
for (int ch=0; ch<fei->channels; ++ch) {
if (fei->buffPerChannel[ch] == NULL){
dprintf("%s pcm buffer is not set yet.\n", __FUNCTION__);
return FRT_DataNotReady;
}
}
if (fei->bitsPerSample != 16 && fei->bitsPerSample != 24) {
return FRT_InvalidBitsPerSample;
}
pcm = new FLAC__int32[FLACENCODE_READFRAMES * fei->channels];
if (pcm == NULL) {
return FRT_MemoryExhausted;
}
// Windowsでは、この方法でファイルを開かなければならぬ。
wcsncpy_s(fei->path, path, (sizeof fei->path)/2-1);
ercd = _wfopen_s(&fp, fei->path, L"wb");
if (ercd != 0 || NULL == fp) {
fei->errorCode = FRT_FileOpenError;
goto end;
}
initStatus = FLAC__stream_encoder_init_FILE(fei->encoder, fp, ProgressCallback, fei);
if(initStatus != FLAC__STREAM_ENCODER_INIT_STATUS_OK) {
dprintf("FLAC__stream_encoder_init_FILE failed %s\n", FLAC__StreamEncoderInitStatusString[initStatus]);
switch (initStatus) {
case FLAC__STREAM_ENCODER_INIT_STATUS_ENCODER_ERROR:
{
FLAC__StreamDecoderState state = FLAC__stream_encoder_get_verify_decoder_state(fei->encoder);
dprintf("decoderState=%d\n", state);
}
fei->errorCode = FRT_EncoderError;
goto end;
case FLAC__STREAM_ENCODER_INIT_STATUS_INVALID_NUMBER_OF_CHANNELS:
fei->errorCode = FRT_InvalidNumberOfChannels;
goto end;
case FLAC__STREAM_ENCODER_INIT_STATUS_INVALID_BITS_PER_SAMPLE:
fei->errorCode = FRT_InvalidBitsPerSample;
goto end;
case FLAC__STREAM_ENCODER_INIT_STATUS_INVALID_SAMPLE_RATE:
fei->errorCode = FRT_InvalidSampleRate;
goto end;
case FLAC__STREAM_ENCODER_INIT_STATUS_INVALID_METADATA:
fei->errorCode = FRT_InvalidMetadata;
goto end;
case FLAC__STREAM_ENCODER_INIT_STATUS_INVALID_CALLBACKS:
case FLAC__STREAM_ENCODER_INIT_STATUS_ALREADY_INITIALIZED:
case FLAC__STREAM_ENCODER_INIT_STATUS_UNSUPPORTED_CONTAINER:
case FLAC__STREAM_ENCODER_INIT_STATUS_INVALID_BLOCK_SIZE:
case FLAC__STREAM_ENCODER_INIT_STATUS_INVALID_MAX_LPC_ORDER:
case FLAC__STREAM_ENCODER_INIT_STATUS_INVALID_QLP_COEFF_PRECISION:
case FLAC__STREAM_ENCODER_INIT_STATUS_BLOCK_SIZE_TOO_SMALL_FOR_LPC_ORDER:
case FLAC__STREAM_ENCODER_INIT_STATUS_NOT_STREAMABLE:
default:
fei->errorCode = FRT_OtherError;
goto end;
}
}
fp = NULL;
readPos = 0;
left = fei->totalSamples;
while(ok && left) {
uint32_t need = left>FLACENCODE_READFRAMES ? FLACENCODE_READFRAMES : (unsigned int)left;
// create interleaved PCM samples to pcm[]
writePos = 0;
switch (fei->bitsPerSample) {
case 16:
for (uint32_t i=0; i<need; ++i) {
for (int ch=0; ch<fei->channels;++ch) {
uint8_t *p = &fei->buffPerChannel[ch][readPos];
int v = (p[0]<<16) + (p[1]<<24);
pcm[writePos] = v>>16;
++writePos;
}
readPos += 2;
}
break;
case 24:
for (uint32_t i=0; i<need; ++i) {
for (int ch=0; ch<fei->channels;++ch) {
uint8_t *p = &fei->buffPerChannel[ch][readPos];
int v = (p[0]<<8) + (p[1]<<16) + (p[2]<<24);
pcm[writePos] = v >> 8;
++writePos;
}
readPos += 3;
}
break;
default:
assert(0);
break;
}
ok = FLAC__stream_encoder_process_interleaved(fei->encoder, pcm, need);
left -= need;
}
if (!ok) {
dprintf("FLAC__stream_encoder_process_interleaved failed");
fei->errorCode = FRT_EncoderProcessFailed;
}
end:
delete [] pcm;
pcm = NULL;
if (NULL != fp) {
fclose(fp);
fp = NULL;
}
if (NULL != fei->encoder) {
if (initStatus == FLAC__STREAM_ENCODER_INIT_STATUS_OK) {
FLAC__stream_encoder_finish(fei->encoder);
}
DeleteFlacMetaArray(fei);
FLAC__stream_encoder_delete(fei->encoder);
fei->encoder = NULL;
}
if (fei->errorCode < 0) {
int result = fei->errorCode;
FlacTInfoDelete<FlacEncodeInfo>(g_flacEncodeInfoMap, fei);
fei = NULL;
return result;
}
return fei->id;
}
FLAC__bool file_utils__generate_flacfile(FLAC__bool is_ogg, const char *output_filename, off_t *output_filesize, unsigned length, const FLAC__StreamMetadata *streaminfo, FLAC__StreamMetadata **metadata, unsigned num_metadata)
{
FLAC__int32 samples[1024];
FLAC__StreamEncoder *encoder;
FLAC__StreamEncoderInitStatus init_status;
encoder_client_struct encoder_client_data;
unsigned i, n;
FLAC__ASSERT(0 != output_filename);
FLAC__ASSERT(0 != streaminfo);
FLAC__ASSERT(streaminfo->type == FLAC__METADATA_TYPE_STREAMINFO);
FLAC__ASSERT((streaminfo->is_last && num_metadata == 0) || (!streaminfo->is_last && num_metadata > 0));
if(0 == (encoder_client_data.file = fopen(output_filename, "wb")))
return false;
encoder = FLAC__stream_encoder_new();
if(0 == encoder) {
fclose(encoder_client_data.file);
return false;
}
FLAC__stream_encoder_set_ogg_serial_number(encoder, file_utils__ogg_serial_number);
FLAC__stream_encoder_set_verify(encoder, true);
FLAC__stream_encoder_set_streamable_subset(encoder, true);
FLAC__stream_encoder_set_do_mid_side_stereo(encoder, false);
FLAC__stream_encoder_set_loose_mid_side_stereo(encoder, false);
FLAC__stream_encoder_set_channels(encoder, streaminfo->data.stream_info.channels);
FLAC__stream_encoder_set_bits_per_sample(encoder, streaminfo->data.stream_info.bits_per_sample);
FLAC__stream_encoder_set_sample_rate(encoder, streaminfo->data.stream_info.sample_rate);
FLAC__stream_encoder_set_blocksize(encoder, streaminfo->data.stream_info.min_blocksize);
FLAC__stream_encoder_set_max_lpc_order(encoder, 0);
FLAC__stream_encoder_set_qlp_coeff_precision(encoder, 0);
FLAC__stream_encoder_set_do_qlp_coeff_prec_search(encoder, false);
FLAC__stream_encoder_set_do_escape_coding(encoder, false);
FLAC__stream_encoder_set_do_exhaustive_model_search(encoder, false);
FLAC__stream_encoder_set_min_residual_partition_order(encoder, 0);
FLAC__stream_encoder_set_max_residual_partition_order(encoder, 0);
FLAC__stream_encoder_set_rice_parameter_search_dist(encoder, 0);
FLAC__stream_encoder_set_total_samples_estimate(encoder, streaminfo->data.stream_info.total_samples);
FLAC__stream_encoder_set_metadata(encoder, metadata, num_metadata);
if(is_ogg)
init_status = FLAC__stream_encoder_init_ogg_stream(encoder, /*read_callback=*/0, encoder_write_callback_, /*seek_callback=*/0, /*tell_callback=*/0, encoder_metadata_callback_, &encoder_client_data);
else
init_status = FLAC__stream_encoder_init_stream(encoder, encoder_write_callback_, /*seek_callback=*/0, /*tell_callback=*/0, encoder_metadata_callback_, &encoder_client_data);
if(init_status != FLAC__STREAM_ENCODER_INIT_STATUS_OK) {
fclose(encoder_client_data.file);
return false;
}
/* init the dummy sample buffer */
for(i = 0; i < sizeof(samples) / sizeof(FLAC__int32); i++)
samples[i] = i & 7;
while(length > 0) {
n = min(length, sizeof(samples) / sizeof(FLAC__int32));
if(!FLAC__stream_encoder_process_interleaved(encoder, samples, n)) {
fclose(encoder_client_data.file);
return false;
}
length -= n;
}
(void)FLAC__stream_encoder_finish(encoder);
fclose(encoder_client_data.file);
FLAC__stream_encoder_delete(encoder);
if(0 != output_filesize) {
struct stat filestats;
if(stat(output_filename, &filestats) != 0)
return false;
else
*output_filesize = filestats.st_size;
}
return true;
}
static int start_write(sox_format_t * const ft)
{
priv_t * p = (priv_t *)ft->priv;
FLAC__StreamEncoderState status;
unsigned compression_level = MAX_COMPRESSION; /* Default to "best" */
if (ft->encoding.compression != HUGE_VAL) {
compression_level = ft->encoding.compression;
if (compression_level != ft->encoding.compression ||
compression_level > MAX_COMPRESSION) {
lsx_fail_errno(ft, SOX_EINVAL,
"FLAC compression level must be a whole number from 0 to %i",
MAX_COMPRESSION);
return SOX_EOF;
}
}
p->encoder = FLAC__stream_encoder_new();
if (p->encoder == NULL) {
lsx_fail_errno(ft, SOX_ENOMEM, "FLAC ERROR creating the encoder instance");
return SOX_EOF;
}
p->decoded_samples = lsx_malloc(sox_globals.bufsiz * sizeof(FLAC__int32));
p->bits_per_sample = ft->encoding.bits_per_sample;
lsx_report("encoding at %i bits per sample", p->bits_per_sample);
FLAC__stream_encoder_set_channels(p->encoder, ft->signal.channels);
FLAC__stream_encoder_set_bits_per_sample(p->encoder, p->bits_per_sample);
FLAC__stream_encoder_set_sample_rate(p->encoder, (unsigned)(ft->signal.rate + .5));
{ /* Check if rate is streamable: */
static const unsigned streamable_rates[] =
{8000, 16000, 22050, 24000, 32000, 44100, 48000, 96000};
size_t i;
sox_bool streamable = sox_false;
for (i = 0; !streamable && i < array_length(streamable_rates); ++i)
streamable = (streamable_rates[i] == ft->signal.rate);
if (!streamable) {
lsx_report("non-standard rate; output may not be streamable");
FLAC__stream_encoder_set_streamable_subset(p->encoder, sox_false);
}
}
#if FLAC_API_VERSION_CURRENT >= 10
FLAC__stream_encoder_set_compression_level(p->encoder, compression_level);
#else
{
static struct {
unsigned blocksize;
FLAC__bool do_exhaustive_model_search;
FLAC__bool do_mid_side_stereo;
FLAC__bool loose_mid_side_stereo;
unsigned max_lpc_order;
unsigned max_residual_partition_order;
unsigned min_residual_partition_order;
} const options[MAX_COMPRESSION + 1] = {
{1152, sox_false, sox_false, sox_false, 0, 2, 2},
{1152, sox_false, sox_true, sox_true, 0, 2, 2},
{1152, sox_false, sox_true, sox_false, 0, 3, 0},
{4608, sox_false, sox_false, sox_false, 6, 3, 3},
{4608, sox_false, sox_true, sox_true, 8, 3, 3},
{4608, sox_false, sox_true, sox_false, 8, 3, 3},
{4608, sox_false, sox_true, sox_false, 8, 4, 0},
{4608, sox_true, sox_true, sox_false, 8, 6, 0},
{4608, sox_true, sox_true, sox_false, 12, 6, 0},
};
#define SET_OPTION(x) do {\
lsx_report(#x" = %i", options[compression_level].x); \
FLAC__stream_encoder_set_##x(p->encoder, options[compression_level].x);\
} while (0)
SET_OPTION(blocksize);
SET_OPTION(do_exhaustive_model_search);
SET_OPTION(max_lpc_order);
SET_OPTION(max_residual_partition_order);
SET_OPTION(min_residual_partition_order);
if (ft->signal.channels == 2) {
SET_OPTION(do_mid_side_stereo);
SET_OPTION(loose_mid_side_stereo);
}
#undef SET_OPTION
}
#endif
if (ft->signal.length != 0) {
FLAC__stream_encoder_set_total_samples_estimate(p->encoder, (FLAC__uint64)(ft->signal.length / ft->signal.channels));
p->metadata[p->num_metadata] = FLAC__metadata_object_new(FLAC__METADATA_TYPE_SEEKTABLE);
if (p->metadata[p->num_metadata] == NULL) {
lsx_fail_errno(ft, SOX_ENOMEM, "FLAC ERROR creating the encoder seek table template");
return SOX_EOF;
}
{
#if FLAC_API_VERSION_CURRENT >= 8
if (!FLAC__metadata_object_seektable_template_append_spaced_points_by_samples(p->metadata[p->num_metadata], (unsigned)(10 * ft->signal.rate + .5), (FLAC__uint64)(ft->signal.length/ft->signal.channels))) {
#else
size_t samples = 10 * ft->signal.rate;
size_t total_samples = ft->signal.length/ft->signal.channels;
if (!FLAC__metadata_object_seektable_template_append_spaced_points(p->metadata[p->num_metadata], total_samples / samples + (total_samples % samples != 0), (FLAC__uint64)total_samples)) {
#endif
lsx_fail_errno(ft, SOX_ENOMEM, "FLAC ERROR creating the encoder seek table points");
return SOX_EOF;
}
}
p->metadata[p->num_metadata]->is_last = sox_false; /* the encoder will set this for us */
++p->num_metadata;
}
if (ft->oob.comments) { /* Make the comment structure */
FLAC__StreamMetadata_VorbisComment_Entry entry;
int i;
p->metadata[p->num_metadata] = FLAC__metadata_object_new(FLAC__METADATA_TYPE_VORBIS_COMMENT);
for (i = 0; ft->oob.comments[i]; ++i) {
static const char prepend[] = "Comment=";
char * text = lsx_calloc(strlen(prepend) + strlen(ft->oob.comments[i]) + 1, sizeof(*text));
/* Prepend `Comment=' if no field-name already in the comment */
if (!strchr(ft->oob.comments[i], '='))
strcpy(text, prepend);
entry.entry = (FLAC__byte *) strcat(text, ft->oob.comments[i]);
entry.length = strlen(text);
FLAC__metadata_object_vorbiscomment_append_comment(p->metadata[p->num_metadata], entry, /*copy= */ sox_true);
free(text);
}
++p->num_metadata;
}
if (p->num_metadata)
FLAC__stream_encoder_set_metadata(p->encoder, p->metadata, p->num_metadata);
#if FLAC_API_VERSION_CURRENT <= 7
FLAC__stream_encoder_set_write_callback(p->encoder, flac_stream_encoder_write_callback);
FLAC__stream_encoder_set_metadata_callback(p->encoder, flac_stream_encoder_metadata_callback);
FLAC__stream_encoder_set_client_data(p->encoder, ft);
status = FLAC__stream_encoder_init(p->encoder);
#else
status = FLAC__stream_encoder_init_stream(p->encoder, flac_stream_encoder_write_callback,
flac_stream_encoder_seek_callback, flac_stream_encoder_tell_callback, flac_stream_encoder_metadata_callback, ft);
#endif
if (status != FLAC__STREAM_ENCODER_OK) {
lsx_fail_errno(ft, SOX_EINVAL, "%s", FLAC__StreamEncoderStateString[status]);
return SOX_EOF;
}
return SOX_SUCCESS;
}
static size_t write_samples(sox_format_t * const ft, sox_sample_t const * const sampleBuffer, size_t const len)
{
priv_t * p = (priv_t *)ft->priv;
unsigned i;
for (i = 0; i < len; ++i) {
long pcm = SOX_SAMPLE_TO_SIGNED_32BIT(sampleBuffer[i], ft->clips);
p->decoded_samples[i] = pcm >> (32 - p->bits_per_sample);
switch (p->bits_per_sample) {
case 8: p->decoded_samples[i] =
SOX_SAMPLE_TO_SIGNED_8BIT(sampleBuffer[i], ft->clips);
break;
case 16: p->decoded_samples[i] =
SOX_SAMPLE_TO_SIGNED_16BIT(sampleBuffer[i], ft->clips);
break;
case 24: p->decoded_samples[i] = /* sign extension: */
SOX_SAMPLE_TO_SIGNED_24BIT(sampleBuffer[i],ft->clips) << 8;
p->decoded_samples[i] >>= 8;
break;
case 32: p->decoded_samples[i] =
SOX_SAMPLE_TO_SIGNED_32BIT(sampleBuffer[i],ft->clips);
break;
}
}
FLAC__stream_encoder_process_interleaved(p->encoder, p->decoded_samples, (unsigned) len / ft->signal.channels);
return FLAC__stream_encoder_get_state(p->encoder) == FLAC__STREAM_ENCODER_OK ? len : 0;
}
const char*
_edje_multisense_encode_to_flac(char *snd_path, SF_INFO sfinfo)
{
unsigned int total_samples = 0; /* can use a 32-bit number due to WAVE size limitations */
FLAC__bool ok = 1;
FLAC__StreamEncoder *encoder = 0;
FLAC__StreamEncoderInitStatus init_status;
FLAC__StreamMetadata *metadata[2];
FLAC__StreamMetadata_VorbisComment_Entry entry;
SNDFILE *sfile;
sf_count_t size;
char *tmp;
sfile = sf_open(snd_path, SFM_READ, &sfinfo);
if (!sfile) return NULL;
if (!sf_format_check(&sfinfo))
{
sf_close(sfile);
return NULL;
}
size = sf_seek(sfile, 0, SEEK_END);
sf_seek(sfile, 0, SEEK_SET);
tmp = malloc(strlen(snd_path) + 1 + 5);
if (!tmp)
{
sf_close(sfile);
return NULL;
}
strcpy(tmp, snd_path);
snd_path = tmp;
strcat(snd_path, ".flac");
total_samples = size;
/* allocate the encoder */
if ((encoder = FLAC__stream_encoder_new()) == NULL)
{
ERR("ERROR: Creating FLAC encoder\n");
free(snd_path);
sf_close(sfile);
return NULL;
}
/* Verify it's own encoded output. This will slow the encoding process. */
ok &= FLAC__stream_encoder_set_verify(encoder, 1);
//Levels range from 0 (fastest, least compression) to 8 (slowest, most compression).
//A value larger than 8 will be treated as 8.
//5 is used for good compression and moderate compression/decompression speed.
ok &= FLAC__stream_encoder_set_compression_level(encoder, 5);
ok &= FLAC__stream_encoder_set_channels(encoder, sfinfo.channels);
ok &= FLAC__stream_encoder_set_bits_per_sample(encoder, 16);
ok &= FLAC__stream_encoder_set_sample_rate(encoder, sfinfo.samplerate);
ok &= FLAC__stream_encoder_set_total_samples_estimate(encoder, total_samples);
/* now add some metadata; we'll add some tags and a padding block */
if (ok)
{
if ((metadata[0] = FLAC__metadata_object_new(FLAC__METADATA_TYPE_VORBIS_COMMENT)) == NULL
|| (metadata[1] = FLAC__metadata_object_new(FLAC__METADATA_TYPE_PADDING)) == NULL
|| !FLAC__metadata_object_vorbiscomment_entry_from_name_value_pair(&entry, "Encoder", "flac")
|| !FLAC__metadata_object_vorbiscomment_append_comment(metadata[0], entry, 0))
{
ERR("ERROR: out of memory error or tag error\n");
ok = 0;
}
metadata[1]->length = 16; /* set the padding length */
ok = FLAC__stream_encoder_set_metadata(encoder, metadata, 2);
}
/* initialize encoder */
if (ok)
{
init_status = FLAC__stream_encoder_init_file(encoder, snd_path, NULL,
(void *)(long)(total_samples));
if (init_status != FLAC__STREAM_ENCODER_INIT_STATUS_OK)
{
ERR("ERROR: unable to initialize FLAC encoder: %s\n",
FLAC__StreamEncoderInitStatusString[init_status]);
ok = 0;
}
}
/* read blocks of samples from WAVE file and feed to encoder */
while (ok)
{
FLAC__int32 readbuffer[READBUF * 2];
sf_count_t count;
int i;
count = sf_readf_int(sfile, readbuffer, READBUF);
if (count <= 0) break;
for (i = 0; i < (count * sfinfo.channels); i++)
readbuffer[i] = readbuffer[i] >> 16;
ok = FLAC__stream_encoder_process_interleaved(encoder, readbuffer,
count);
}
FLAC__stream_encoder_finish(encoder);
/* now that encoding is finished, the metadata can be freed */
FLAC__metadata_object_delete(metadata[0]);
FLAC__metadata_object_delete(metadata[1]);
FLAC__stream_encoder_delete(encoder);
sf_close(sfile);
return (snd_path);
}
bool CEncoderFlac::Start(int inChannels, int inRate, int inBits,
const std::string& title, const std::string& artist,
const std::string& albumartist, const std::string& album,
const std::string& year, const std::string& track, const std::string& genre,
const std::string& comment, int trackLength)
{
if (!m_encoder)
return false;
// we accept only 2 / 44100 / 16 atm
if (inChannels != 2 || inRate != 44100 || inBits != 16)
{
kodi::Log(ADDON_LOG_ERROR, "Invalid input format to encode");
return false;
}
FLAC__bool ok = 1;
ok &= FLAC__stream_encoder_set_verify(m_encoder, true);
ok &= FLAC__stream_encoder_set_channels(m_encoder, inChannels);
ok &= FLAC__stream_encoder_set_bits_per_sample(m_encoder, inBits);
ok &= FLAC__stream_encoder_set_sample_rate(m_encoder, inRate);
ok &= FLAC__stream_encoder_set_total_samples_estimate(m_encoder, trackLength / 4);
ok &= FLAC__stream_encoder_set_compression_level(m_encoder, kodi::GetSettingInt("level"));
// now add some metadata
FLAC__StreamMetadata_VorbisComment_Entry entry;
if (ok)
{
if (
(m_metadata[0] = FLAC__metadata_object_new(FLAC__METADATA_TYPE_VORBIS_COMMENT)) == nullptr ||
(m_metadata[1] = FLAC__metadata_object_new(FLAC__METADATA_TYPE_PADDING)) == nullptr ||
!FLAC__metadata_object_vorbiscomment_entry_from_name_value_pair(&entry, "ARTIST", artist.c_str()) ||
!FLAC__metadata_object_vorbiscomment_append_comment(m_metadata[0], entry, false) ||
!FLAC__metadata_object_vorbiscomment_entry_from_name_value_pair(&entry, "ALBUM", album.c_str()) ||
!FLAC__metadata_object_vorbiscomment_append_comment(m_metadata[0], entry, false) ||
!FLAC__metadata_object_vorbiscomment_entry_from_name_value_pair(&entry, "ALBUMARTIST", albumartist.c_str()) ||
!FLAC__metadata_object_vorbiscomment_append_comment(m_metadata[0], entry, false) ||
!FLAC__metadata_object_vorbiscomment_entry_from_name_value_pair(&entry, "TITLE", title.c_str()) ||
!FLAC__metadata_object_vorbiscomment_append_comment(m_metadata[0], entry, false) ||
!FLAC__metadata_object_vorbiscomment_entry_from_name_value_pair(&entry, "GENRE", genre.c_str()) ||
!FLAC__metadata_object_vorbiscomment_append_comment(m_metadata[0], entry, false) ||
!FLAC__metadata_object_vorbiscomment_entry_from_name_value_pair(&entry, "TRACKNUMBER", track.c_str()) ||
!FLAC__metadata_object_vorbiscomment_append_comment(m_metadata[0], entry, false) ||
!FLAC__metadata_object_vorbiscomment_entry_from_name_value_pair(&entry, "DATE", year.c_str()) ||
!FLAC__metadata_object_vorbiscomment_append_comment(m_metadata[0], entry, false) ||
!FLAC__metadata_object_vorbiscomment_entry_from_name_value_pair(&entry, "COMMENT", comment.c_str()) ||
!FLAC__metadata_object_vorbiscomment_append_comment(m_metadata[0], entry, false)
)
{
ok = false;
}
else
{
m_metadata[1]->length = 4096;
ok = FLAC__stream_encoder_set_metadata(m_encoder, m_metadata, 2);
}
}
// initialize encoder in stream mode
if (ok)
{
FLAC__StreamEncoderInitStatus init_status;
init_status = FLAC__stream_encoder_init_stream(m_encoder, write_callback_flac, seek_callback_flac, tell_callback_flac, nullptr, this);
if (init_status != FLAC__STREAM_ENCODER_INIT_STATUS_OK)
{
ok = false;
}
}
if (!ok)
{
kodi::Log(ADDON_LOG_ERROR, "Failed to create flac stream encoder");
return false;
}
return true;
}
