OggFLAC_API FLAC__bool OggFLAC__seekable_stream_encoder_set_do_mid_side_stereo(OggFLAC__SeekableStreamEncoder *encoder, FLAC__bool value)
{
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;
return FLAC__stream_encoder_set_do_mid_side_stereo(encoder->private_->FLAC_stream_encoder, value);
}
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;
}
