OMX_ERRORTYPE SoftFlacEncoder::configureEncoder() {
ALOGV("SoftFlacEncoder::configureEncoder() numChannel=%d, sampleRate=%d",
mNumChannels, mSampleRate);
if (mSignalledError || (mFlacStreamEncoder == NULL)) {
ALOGE("can't configure encoder: no encoder or invalid state");
return OMX_ErrorInvalidState;
}
FLAC__bool ok = true;
ok = ok && FLAC__stream_encoder_set_channels(mFlacStreamEncoder, mNumChannels);
ok = ok && FLAC__stream_encoder_set_sample_rate(mFlacStreamEncoder, mSampleRate);
ok = ok && FLAC__stream_encoder_set_bits_per_sample(mFlacStreamEncoder, 16);
ok = ok && FLAC__stream_encoder_set_compression_level(mFlacStreamEncoder,
(unsigned)mCompressionLevel);
ok = ok && FLAC__stream_encoder_set_verify(mFlacStreamEncoder, false);
if (!ok) { goto return_result; }
ok &= FLAC__STREAM_ENCODER_INIT_STATUS_OK ==
FLAC__stream_encoder_init_stream(mFlacStreamEncoder,
flacEncoderWriteCallback /*write_callback*/,
NULL /*seek_callback*/,
NULL /*tell_callback*/,
NULL /*metadata_callback*/,
(void *) this /*client_data*/);
return_result:
if (ok) {
ALOGV("encoder successfully configured");
return OMX_ErrorNone;
} else {
ALOGE("unknown error when configuring encoder");
return OMX_ErrorUndefined;
}
}
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 StartStream()
{
ASSERT(inited && !started);
FLAC__stream_encoder_init_stream(encoder, FLACWriteCallback, FLACSeekCallback, FLACTellCallback, nullptr, this);
started = true;
ASSERT(inited && started);
}
void FlacAudioEncoder::setup(AudioEncoderProfile::SharedPtr profile, AudioMetaData::SharedPtr metadata, uint32_t data_size)
{
_profile = profile;
// allocate the encoder
_encoder = FLAC__stream_encoder_new();
if (_encoder == nullptr)
{
THROW_EXCEPTION(AudioEncoderException, "ERROR: allocating encoder");
return;
}
if (not FLAC__stream_encoder_set_channels(_encoder, profile->channels()))
{
THROW_EXCEPTION(AudioEncoderException, "ERROR: could not set channel count");
return;
}
if (not FLAC__stream_encoder_set_sample_rate(_encoder, profile->sample_rate()))
{
THROW_EXCEPTION(AudioEncoderException, "ERROR: could not set sample rate");
return;
}
if (not FLAC__stream_encoder_set_bits_per_sample(_encoder, profile->bits_per_sample()))
{
THROW_EXCEPTION(AudioEncoderException, "ERROR: could not set sample width");
return;
}
if (not FLAC__stream_encoder_set_compression_level(_encoder, profile->quality_level()))
{
THROW_EXCEPTION(AudioEncoderException, "ERROR: could not set compression level");
return;
}
FLAC__stream_encoder_set_verify(_encoder, true);
//FLAC__stream_encoder_set_total_samples_estimate(encoder, total_samples);
set_tags(metadata);
FLAC__StreamEncoderInitStatus init_status = FLAC__stream_encoder_init_stream(_encoder,
write_callback,
seek_callback,
tell_callback,
nullptr,
this);
if (init_status != FLAC__STREAM_ENCODER_INIT_STATUS_OK)
{
THROW_EXCEPTION(AudioEncoderException, "ERROR: could not initialize FLAC encoder");
}
}
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;
}
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;
}
int WFLACEncoder::Initialize(unsigned int nSampleRate, unsigned int nNumberOfChannels, unsigned int nBitPerSample,
unsigned int custom_value,
TEncoderReadCallback read_callback,
TEncoderWriteCallback write_callback,
TEncoderSeekCallback seek_callback,
TEncoderTellCallback tell_callback)
{
c_nSampleRate = nSampleRate;
c_nNumberOfChannels = nNumberOfChannels;
c_nBitBerSample = nBitPerSample;
c_read_calllback = read_callback;
c_write_callback = write_callback;
c_seek_callback = seek_callback;
c_tell_callback = tell_callback;
c_user_data = (void*) custom_value;
if((c_encoder = FLAC__stream_encoder_new()) == NULL)
{
err(ENCODER_INITIALIZATION_ERROR);
return 0;
}
FLAC__bool ok = true;
ok &= FLAC__stream_encoder_set_verify(c_encoder, false);
ok &= FLAC__stream_encoder_set_compression_level(c_encoder, 5);
ok &= FLAC__stream_encoder_set_channels(c_encoder, c_nNumberOfChannels);
ok &= FLAC__stream_encoder_set_bits_per_sample(c_encoder, c_nBitBerSample);
ok &= FLAC__stream_encoder_set_sample_rate(c_encoder, c_nSampleRate);
ok &= FLAC__stream_encoder_set_total_samples_estimate(c_encoder, 0);
if(!ok)
{
FLAC__stream_encoder_delete(c_encoder);
c_encoder = NULL;
err(ENCODER_INITIALIZATION_ERROR);
return 0;
}
if(c_fOgg)
{
if(FLAC__stream_encoder_init_ogg_stream(c_encoder, f_read_callback, f_write_callback, f_seek_callback, f_tell_callback, NULL, this) != FLAC__STREAM_ENCODER_INIT_STATUS_OK)
{
FLAC__stream_encoder_delete(c_encoder);
c_encoder = NULL;
err(ENCODER_FILEOPEN_ERROR);
return 0;
}
}
else
{
if(FLAC__stream_encoder_init_stream(c_encoder, f_write_callback, f_seek_callback, f_tell_callback, NULL, this) != FLAC__STREAM_ENCODER_INIT_STATUS_OK)
{
FLAC__stream_encoder_delete(c_encoder);
c_encoder = NULL;
err(ENCODER_FILEOPEN_ERROR);
return 0;
}
}
c_fReady = 1;
return 1;
}
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;
}
static bool
flac_encoder_open(struct encoder *_encoder, struct audio_format *audio_format,
GError **error)
{
struct flac_encoder *encoder = (struct flac_encoder *)_encoder;
unsigned bits_per_sample;
encoder->audio_format = *audio_format;
/* FIXME: flac should support 32bit as well */
switch (audio_format->format) {
case SAMPLE_FORMAT_S8:
bits_per_sample = 8;
break;
case SAMPLE_FORMAT_S16:
bits_per_sample = 16;
break;
case SAMPLE_FORMAT_S24_P32:
bits_per_sample = 24;
break;
default:
bits_per_sample = 24;
audio_format->format = SAMPLE_FORMAT_S24_P32;
}
/* allocate the encoder */
encoder->fse = FLAC__stream_encoder_new();
if (encoder->fse == NULL) {
g_set_error(error, flac_encoder_quark(), 0,
"flac_new() failed");
return false;
}
if (!flac_encoder_setup(encoder, bits_per_sample, error)) {
FLAC__stream_encoder_delete(encoder->fse);
return false;
}
encoder->buffer_length = 0;
pcm_buffer_init(&encoder->buffer);
pcm_buffer_init(&encoder->expand_buffer);
/* this immediately outputs data through callback */
#if !defined(FLAC_API_VERSION_CURRENT) || FLAC_API_VERSION_CURRENT <= 7
{
FLAC__StreamEncoderState init_status;
FLAC__stream_encoder_set_write_callback(encoder->fse,
flac_write_callback);
init_status = FLAC__stream_encoder_init(encoder->fse);
if (init_status != FLAC__STREAM_ENCODER_OK) {
g_set_error(error, flac_encoder_quark(), 0,
"failed to initialize encoder: %s\n",
FLAC__StreamEncoderStateString[init_status]);
flac_encoder_close(_encoder);
return false;
}
}
#else
{
FLAC__StreamEncoderInitStatus init_status;
init_status = FLAC__stream_encoder_init_stream(encoder->fse,
flac_write_callback,
NULL, NULL, NULL, encoder);
if(init_status != FLAC__STREAM_ENCODER_INIT_STATUS_OK) {
g_set_error(error, flac_encoder_quark(), 0,
"failed to initialize encoder: %s\n",
FLAC__StreamEncoderInitStatusString[init_status]);
flac_encoder_close(_encoder);
return false;
}
}
#endif
return true;
}
