static result_t
encode_opus_file(char *filename,
struct PCMReader *pcmreader,
int quality,
unsigned original_sample_rate)
{
const int multichannel = (pcmreader->channels > 2);
const unsigned channel_mapping = (pcmreader->channels > 8 ? 255 :
pcmreader->channels > 2);
int stream_count;
int coupled_stream_count;
unsigned char stream_map[255];
int samples[BLOCK_SIZE * pcmreader->channels];
unsigned pcm_frames;
result_t result = ENCODE_OK;
FILE *output_file = NULL;
ogg_stream_state ogg_stream;
ogg_page ogg_page;
OpusEncoder *opus_encoder = NULL;
OpusMSEncoder *opus_ms_encoder = NULL;
int error;
opus_int16 *opus_samples = NULL;
unsigned char opus_frame[OPUS_FRAME_LEN];
ogg_int64_t granulepos = 0;
ogg_int64_t packetno = 0;
opus_int32 preskip;
/*open output file for writing*/
if ((output_file = fopen(filename, "w+b")) == NULL) {
return ERR_IOERROR;
}
if (!multichannel) {
if ((opus_encoder = opus_encoder_create(48000,
pcmreader->channels,
OPUS_APPLICATION_AUDIO,
&error)) == NULL) {
fclose(output_file);
return ERR_ENCODER_INIT;
}
opus_encoder_ctl(opus_encoder, OPUS_SET_COMPLEXITY(quality));
opus_encoder_ctl(opus_encoder, OPUS_GET_LOOKAHEAD(&preskip));
} else {
if ((opus_ms_encoder =
opus_multistream_surround_encoder_create(
48000,
pcmreader->channels,
channel_mapping,
&stream_count,
&coupled_stream_count,
stream_map,
OPUS_APPLICATION_AUDIO,
&error)) == NULL) {
fclose(output_file);
return ERR_ENCODER_INIT;
}
opus_multistream_encoder_ctl(opus_ms_encoder,
OPUS_SET_COMPLEXITY(quality));
opus_multistream_encoder_ctl(opus_ms_encoder,
OPUS_GET_LOOKAHEAD(&preskip));
}
srand((unsigned)time(NULL));
ogg_stream_init(&ogg_stream, rand());
/*write header and comment packets to Ogg stream*/
{
BitstreamRecorder *header =
bw_open_bytes_recorder(BS_LITTLE_ENDIAN);
BitstreamWriter *header_w =(BitstreamWriter*)header;
BitstreamRecorder *comment =
bw_open_bytes_recorder(BS_LITTLE_ENDIAN);
BitstreamWriter *comment_w = (BitstreamWriter*)comment;
int i;
/*write header packet to Ogg stream*/
const char opushead[] = "OpusHead";
const char opuscomment[] = "OpusTags";
const char *vendor_string = opus_get_version_string();
const size_t vendor_string_len = strlen(vendor_string);
ogg_packet packet_head;
ogg_packet packet_tags;
header_w->write_bytes(header_w,
(uint8_t*)opushead,
(unsigned)strlen(opushead));
header_w->write(header_w, 8, 1); /*version*/
header_w->write(header_w, 8, pcmreader->channels);
header_w->write(header_w, 16, preskip);
header_w->write(header_w, 32, original_sample_rate);
header_w->write(header_w, 16, 0); /*output gain*/
header_w->write(header_w, 8, channel_mapping);
if (channel_mapping != 0) {
header_w->write(header_w, 8, stream_count);
header_w->write(header_w, 8, coupled_stream_count);
for (i = 0; i < pcmreader->channels; i++) {
header_w->write(header_w, 8, stream_map[i]);
}
}
packet_head.packet = malloc(header->bytes_written(header));
header->data(header, (uint8_t*)packet_head.packet);
packet_head.bytes = header->bytes_written(header);
packet_head.b_o_s = 1;
packet_head.e_o_s = 0;
packet_head.granulepos = 0;
packet_head.packetno = packetno++;
header->close(header);
ogg_stream_packetin(&ogg_stream, &packet_head);
for (i = ogg_stream_flush(&ogg_stream, &ogg_page);
i != 0;
i = ogg_stream_flush(&ogg_stream, &ogg_page)) {
fwrite(ogg_page.header, 1, ogg_page.header_len, output_file);
fwrite(ogg_page.body, 1, ogg_page.body_len, output_file);
}
free(packet_head.packet);
/*write comment packet to Ogg stream*/
comment_w->write_bytes(comment_w,
(uint8_t*)opuscomment,
(unsigned)strlen(opuscomment));
comment_w->write(comment_w, 32, (unsigned)vendor_string_len);
comment_w->write_bytes(comment_w,
(uint8_t*)vendor_string,
(unsigned)vendor_string_len);
comment_w->write(comment_w, 32, 0);
packet_tags.packet = malloc(comment->bytes_written(comment));
comment->data(comment, (uint8_t*)packet_tags.packet);
packet_tags.bytes = comment->bytes_written(comment);
packet_tags.b_o_s = 0;
packet_tags.e_o_s = 0;
packet_tags.granulepos = 0;
packet_tags.packetno = packetno++;
comment->close(comment);
ogg_stream_packetin(&ogg_stream, &packet_tags);
for (i = ogg_stream_flush(&ogg_stream, &ogg_page);
i != 0;
i = ogg_stream_flush(&ogg_stream, &ogg_page)) {
fwrite(ogg_page.header, 1, ogg_page.header_len, output_file);
fwrite(ogg_page.body, 1, ogg_page.body_len, output_file);
}
free(packet_tags.packet);
}
opus_samples = malloc(sizeof(opus_int16) *
pcmreader->channels *
BLOCK_SIZE);
pcm_frames = pcmreader->read(pcmreader, BLOCK_SIZE, samples);
if (!pcm_frames && (pcmreader->status != PCM_OK)) {
result = ERR_PCMREADER;
goto cleanup;
}
/*for each non-empty FrameList from PCMReader, encode Opus frame*/
while (pcm_frames) {
const int short_framelist = (pcm_frames < BLOCK_SIZE);
unsigned i;
opus_int32 encoded_size;
ogg_packet packet;
granulepos += pcm_frames;
/*pad FrameList with additional null samples if necessary*/
memset(samples + pcm_frames * pcmreader->channels,
0,
sizeof(int) * (BLOCK_SIZE - pcm_frames) * pcmreader->channels);
/*rearrange channels to Vorbis order if necessary*/
reorder_channels(pcmreader->channel_mask, BLOCK_SIZE, samples);
/*place samples in interleaved buffer*/
for (i = 0; i < (pcm_frames * pcmreader->channels); i++) {
opus_samples[i] = (opus_int16)samples[i];
}
/*call opus_encode on interleaved buffer to get next packet*/
if (!multichannel) {
encoded_size = opus_encode(opus_encoder,
opus_samples,
BLOCK_SIZE,
opus_frame,
OPUS_FRAME_LEN);
} else {
encoded_size = opus_multistream_encode(opus_ms_encoder,
opus_samples,
BLOCK_SIZE,
opus_frame,
OPUS_FRAME_LEN);
}
/*get next FrameList to encode*/
pcm_frames = pcmreader->read(pcmreader, BLOCK_SIZE, samples);
if (!pcm_frames && (pcmreader->status != PCM_OK)) {
result = ERR_PCMREADER;
goto cleanup;
}
/*dump Opus packet to Ogg stream*/
/*do this *after* reading the next FrameList in order to detect
the end of stream properly based on whether the FrameList
has no frames*/
packet.packet = (unsigned char *)opus_frame;
packet.bytes = encoded_size;
packet.b_o_s = 0;
packet.e_o_s = (short_framelist || (pcm_frames == 0));
packet.granulepos = granulepos;
packet.packetno = packetno;
ogg_stream_packetin(&ogg_stream, &packet);
while (ogg_stream_pageout(&ogg_stream, &ogg_page)) {
fwrite(ogg_page.header, 1, ogg_page.header_len, output_file);
fwrite(ogg_page.body, 1, ogg_page.body_len, output_file);
}
}
/*flush any remaining Ogg pages to disk*/
while (ogg_stream_flush(&ogg_stream, &ogg_page)) {
fwrite(ogg_page.header, 1, ogg_page.header_len, output_file);
fwrite(ogg_page.body, 1, ogg_page.body_len, output_file);
}
cleanup:
fclose(output_file);
ogg_stream_clear(&ogg_stream);
if (!multichannel) {
opus_encoder_destroy(opus_encoder);
} else {
opus_multistream_encoder_destroy(opus_ms_encoder);
}
free(opus_samples);
return result;
}
static int OpenEncoder(vlc_object_t *p_this)
{
encoder_t *enc = (encoder_t *)p_this;
if (enc->fmt_out.i_codec != VLC_CODEC_OPUS)
return VLC_EGENERIC;
encoder_sys_t *sys = malloc(sizeof(*sys));
if (!sys)
return VLC_ENOMEM;
int status = VLC_SUCCESS;
sys->buffer = NULL;
sys->enc = NULL;
enc->pf_encode_audio = Encode;
enc->fmt_in.i_codec = VLC_CODEC_FL32;
enc->fmt_in.audio.i_rate = /* Only 48kHz */
enc->fmt_out.audio.i_rate = 48000;
enc->fmt_out.audio.i_channels = enc->fmt_in.audio.i_channels;
OpusHeader header;
if (opus_prepare_header(enc->fmt_out.audio.i_channels,
enc->fmt_out.audio.i_rate,
&header))
{
msg_Err(enc, "Failed to prepare header.");
status = VLC_ENOMEM;
goto error;
}
/* needed for max encoded size calculation */
sys->nb_streams = header.nb_streams;
int err;
sys->enc =
opus_multistream_surround_encoder_create(enc->fmt_in.audio.i_rate,
enc->fmt_in.audio.i_channels, header.channel_mapping,
&header.nb_streams, &header.nb_coupled, header.stream_map,
OPUS_APPLICATION_AUDIO, &err);
if (err != OPUS_OK)
{
msg_Err(enc, "Could not create encoder: error %d", err);
sys->enc = NULL;
status = VLC_EGENERIC;
goto error;
}
/* TODO: vbr, bitrate, fec */
/* Buffer for incoming audio, since opus only accepts frame sizes that are
multiples of 2.5ms */
enc->p_sys = sys;
sys->buffer = malloc(OPUS_FRAME_SIZE * header.channels * sizeof(float));
if (!sys->buffer) {
status = VLC_ENOMEM;
goto error;
}
sys->i_nb_samples = 0;
sys->i_samples_delay = 0;
int ret = opus_multistream_encoder_ctl(enc->p_sys->enc,
OPUS_GET_LOOKAHEAD(&sys->i_samples_delay));
if (ret != OPUS_OK)
msg_Err(enc, "Unable to get number of lookahead samples: %s\n",
opus_strerror(ret));
header.preskip = sys->i_samples_delay;
/* Now that we have preskip, we can write the header to extradata */
if (opus_write_header((uint8_t **) &enc->fmt_out.p_extra,
&enc->fmt_out.i_extra, &header))
{
msg_Err(enc, "Failed to write header.");
status = VLC_ENOMEM;
goto error;
}
if (sys->i_samples_delay > 0)
{
const unsigned padding_samples = sys->i_samples_delay *
enc->fmt_out.audio.i_channels;
sys->padding = block_Alloc(padding_samples * sizeof(float));
if (!sys->padding) {
status = VLC_ENOMEM;
goto error;
}
sys->padding->i_nb_samples = sys->i_samples_delay;
float *pad_ptr = (float *) sys->padding->p_buffer;
memset(pad_ptr, 0, padding_samples * sizeof(float));
}
else
{
sys->padding = NULL;
}
return status;
error:
if (sys->enc)
opus_multistream_encoder_destroy(sys->enc);
free(sys->buffer);
free(sys);
return status;
}
virtual bool CookSurround(FName Format, const TArray<TArray<uint8> >& SrcBuffers, FSoundQualityInfo& QualityInfo, TArray<uint8>& CompressedDataStore) const override
{
check(Format == NAME_OPUS);
// Get best compatible sample rate
const uint16 kOpusSampleRate = GetBestOutputSampleRate(QualityInfo.SampleRate);
// Frame size must be one of 2.5, 5, 10, 20, 40 or 60 ms
const int32 kOpusFrameSizeMs = 60;
// Calculate frame size required by Opus
const int32 kOpusFrameSizeSamples = (kOpusSampleRate * kOpusFrameSizeMs) / 1000;
const uint32 kSampleStride = SAMPLE_SIZE * QualityInfo.NumChannels;
const int32 kBytesPerFrame = kOpusFrameSizeSamples * kSampleStride;
// Check whether source has compatible sample rate
TArray<TArray<uint8>> SrcBufferCopies;
if (QualityInfo.SampleRate != kOpusSampleRate)
{
for (int32 Index = 0; Index < SrcBuffers.Num(); Index++)
{
TArray<uint8>& NewCopy = *new (SrcBufferCopies) TArray<uint8>;
if (!ResamplePCM(1, SrcBuffers[Index], QualityInfo.SampleRate, NewCopy, kOpusSampleRate))
{
return false;
}
}
}
else
{
// Take a copy of the source regardless
for (int32 Index = 0; Index < SrcBuffers.Num(); Index++)
{
SrcBufferCopies[Index] = SrcBuffers[Index];
}
}
// Ensure that all channels are the same length
int32 SourceSize = -1;
for (int32 Index = 0; Index < SrcBufferCopies.Num(); Index++)
{
if (!Index)
{
SourceSize = SrcBufferCopies[Index].Num();
}
else
{
if (SourceSize != SrcBufferCopies[Index].Num())
{
return false;
}
}
}
if (SourceSize <= 0)
{
return false;
}
// Initialise the Opus multistream encoder
OpusMSEncoder* Encoder = NULL;
int32 EncError = 0;
int32 streams = 0;
int32 coupled_streams = 0;
// mapping_family not documented but figured out: 0 = 1 or 2 channels, 1 = 1 to 8 channel surround sound, 255 = up to 255 channels with no surround processing
int32 mapping_family = 1;
TArray<uint8> mapping;
mapping.AddUninitialized(QualityInfo.NumChannels);
#if USE_UE4_MEM_ALLOC
int32 EncSize = opus_multistream_surround_encoder_get_size(QualityInfo.NumChannels, mapping_family);
Encoder = (OpusMSEncoder*)FMemory::Malloc(EncSize);
EncError = opus_multistream_surround_encoder_init(Encoder, kOpusSampleRate, QualityInfo.NumChannels, mapping_family, &streams, &coupled_streams, mapping.GetData(), OPUS_APPLICATION_AUDIO);
#else
Encoder = opus_multistream_surround_encoder_create(kOpusSampleRate, QualityInfo.NumChannels, mapping_family, &streams, &coupled_streams, mapping.GetData(), OPUS_APPLICATION_AUDIO, &EncError);
#endif
if (EncError != OPUS_OK)
{
Destroy(Encoder);
return false;
}
int32 BitRate = GetBitRateFromQuality(QualityInfo);
opus_multistream_encoder_ctl(Encoder, OPUS_SET_BITRATE(BitRate));
// Create a buffer to store compressed data
CompressedDataStore.Empty();
FMemoryWriter CompressedData(CompressedDataStore);
int32 SrcBufferOffset = 0;
// Calc frame and sample count
int32 FramesToEncode = SourceSize / (kOpusFrameSizeSamples * SAMPLE_SIZE);
uint32 TrueSampleCount = SourceSize / SAMPLE_SIZE;
// Add another frame if Source does not divide into an equal number of frames
if (SourceSize % (kOpusFrameSizeSamples * SAMPLE_SIZE) != 0)
{
FramesToEncode++;
}
check(QualityInfo.NumChannels <= MAX_uint8);
check(FramesToEncode <= MAX_uint16);
SerializeHeaderData(CompressedData, kOpusSampleRate, TrueSampleCount, QualityInfo.NumChannels, FramesToEncode);
// Temporary storage for source data in an interleaved format
TArray<uint8> TempInterleavedSrc;
TempInterleavedSrc.AddUninitialized(kBytesPerFrame);
// Temporary storage with more than enough to store any compressed frame
TArray<uint8> TempCompressedData;
TempCompressedData.AddUninitialized(kBytesPerFrame);
while (SrcBufferOffset < SourceSize)
{
// Read a frames worth of data from the source and pack it into interleaved temporary storage
for (int32 SampleIndex = 0; SampleIndex < kOpusFrameSizeSamples; ++SampleIndex)
{
int32 CurrSrcOffset = SrcBufferOffset + SampleIndex*SAMPLE_SIZE;
int32 CurrInterleavedOffset = SampleIndex*kSampleStride;
if (CurrSrcOffset < SourceSize)
{
for (uint32 ChannelIndex = 0; ChannelIndex < QualityInfo.NumChannels; ++ChannelIndex)
{
// Interleave the channels in the Vorbis format, so that the correct channel is used for LFE
int32 OrderedChannelIndex = VorbisChannelInfo::Order[QualityInfo.NumChannels - 1][ChannelIndex];
int32 CurrInterleavedIndex = CurrInterleavedOffset + ChannelIndex*SAMPLE_SIZE;
// Copy both bytes that make up a single sample
TempInterleavedSrc[CurrInterleavedIndex] = SrcBufferCopies[OrderedChannelIndex][CurrSrcOffset];
TempInterleavedSrc[CurrInterleavedIndex + 1] = SrcBufferCopies[OrderedChannelIndex][CurrSrcOffset + 1];
}
}
else
{
// Zero the rest of the temp buffer to make it an exact frame
FMemory::Memzero(TempInterleavedSrc.GetData() + CurrInterleavedOffset, kBytesPerFrame - CurrInterleavedOffset);
SampleIndex = kOpusFrameSizeSamples;
}
}
int32 CompressedLength = opus_multistream_encode(Encoder, (const opus_int16*)(TempInterleavedSrc.GetData()), kOpusFrameSizeSamples, TempCompressedData.GetData(), TempCompressedData.Num());
if (CompressedLength < 0)
{
const char* ErrorStr = opus_strerror(CompressedLength);
UE_LOG(LogAudio, Warning, TEXT("Failed to encode: [%d] %s"), CompressedLength, ANSI_TO_TCHAR(ErrorStr));
Destroy(Encoder);
CompressedDataStore.Empty();
return false;
}
else
{
// Store frame length and copy compressed data before incrementing pointers
check(CompressedLength < MAX_uint16);
SerialiseFrameData(CompressedData, TempCompressedData.GetData(), CompressedLength);
SrcBufferOffset += kOpusFrameSizeSamples * SAMPLE_SIZE;
}
}
Destroy(Encoder);
return CompressedDataStore.Num() > 0;
}
/*
* Create opus writer port.
*/
PJ_DEF(pj_status_t) pjmedia_opus_writer_port_create( pj_pool_t *pool,
const char *filename,
unsigned sampling_rate,
unsigned channel_count,
unsigned samples_per_frame,
unsigned bits_per_sample,
unsigned flags,
pj_ssize_t buff_size,
pjmedia_port **p_port ) {
struct opus_port *oport;
struct opus_tool_param *otp;
pj_str_t name;
pj_status_t status;
pjmedia_frame tempframe;
int i,ret;
/* Check arguments. */
PJ_ASSERT_RETURN(pool && filename && p_port, PJ_EINVAL);
/* Only supports 16bits per sample for now. */
PJ_ASSERT_RETURN(bits_per_sample == 16, PJ_EINVAL);
/* Create file port instance. */
oport = PJ_POOL_ZALLOC_T(pool, struct opus_port);
PJ_ASSERT_RETURN(oport != NULL, PJ_ENOMEM);
/* Initialize port info. */
pj_strdup2(pool, &name, filename);
pjmedia_port_info_init(&oport->base.info, &name, SIGNATURE,
sampling_rate, channel_count, bits_per_sample,
samples_per_frame);
oport->base.get_frame = &opus_get_frame;
oport->base.put_frame = &opus_put_frame;
oport->base.on_destroy = &opus_on_destroy;
oport->bytes_per_sample = 2;
/**********************
* opus-tool Start
*********************/
otp = PJ_POOL_ZALLOC_T(pool, struct opus_tool_param);
PJ_ASSERT_RETURN(otp != NULL, PJ_ENOMEM);
/* Initialize some default parameters. */
otp->opt_ctls_ctlval=NULL;
otp->frange=NULL;
otp->range_file=NULL;
otp->inopt.channels=channel_count;
otp->inopt.rate=otp->coding_rate=otp->rate=sampling_rate;
/* Some default value */
otp->frame_size=960;
otp->bitrate=-1;
otp->with_hard_cbr=0;
otp->with_cvbr=0;
otp->complexity=10;
otp->expect_loss=0;
otp->lookahead=0;
otp->bytes_written=0;
otp->pages_out=0;
otp->comment_padding=512;
otp->eos=0;
otp->nb_samples=-1;
otp->id=-1;
otp->nb_encoded=0;
otp->enc_granulepos=0;
otp->total_bytes=0;
otp->peak_bytes=0;
otp->max_ogg_delay=48000;
/* 0 dB gain is recommended unless you know what you're doing */
otp->inopt.gain=0;
otp->inopt.samplesize=(oport->bytes_per_sample)*8;
otp->inopt.endianness=0;
otp->inopt.rawmode=0;
otp->inopt.ignorelength=0;
otp->inopt.copy_comments=1;
otp->inopt.skip=0;
otp->start_time = time(NULL);
srand(((_getpid()&65535)<<15)^(otp->start_time));
otp->serialno=rand();
otp->opus_version="libopus 1.0.3";
/* Vendor string should just be the encoder library,
the ENCODER comment specifies the tool used. */
comment_init(&otp->inopt.comments, &otp->inopt.comments_length, otp->opus_version);
snprintf(otp->ENCODER_string, sizeof(otp->ENCODER_string), "opusenc from %s %s", PACKAGE_NAME, PACKAGE_VERSION);
comment_add(&otp->inopt.comments, &otp->inopt.comments_length, "ENCODER", otp->ENCODER_string);
otp->outFile=(char *)filename;
otp->rate=otp->inopt.rate;
otp->chan=otp->inopt.channels;
otp->inopt.skip=0;
if(otp->rate>24000)otp->coding_rate=48000;
else if(otp->rate>16000)otp->coding_rate=24000;
else if(otp->rate>12000)otp->coding_rate=16000;
else if(otp->rate>8000)otp->coding_rate=12000;
else otp->coding_rate=8000;
otp->frame_size=otp->frame_size/(48000/otp->coding_rate);
/*OggOpus headers*/ /*FIXME: broke forcemono*/
otp->header.channels=otp->chan;
otp->header.channel_mapping=otp->header.channels>8?255:otp->chan>2;
otp->header.input_sample_rate=otp->rate;
otp->header.gain=otp->inopt.gain;
/* Initialize OPUS encoder */
/* Framesizes <10ms can only use the MDCT modes, so we switch on RESTRICTED_LOWDELAY
to save the extra 2.5ms of codec lookahead when we'll be using only small frames. */
otp->st=opus_multistream_surround_encoder_create(otp->coding_rate, otp->chan, otp->header.channel_mapping, &otp->header.nb_streams, &otp->header.nb_coupled,
otp->header.stream_map, otp->frame_size<480/(48000/otp->coding_rate)?OPUS_APPLICATION_RESTRICTED_LOWDELAY:OPUS_APPLICATION_AUDIO, &ret);
if(ret!=OPUS_OK) {
fprintf(stderr, "Error cannot create encoder: %s\n", opus_strerror(ret));
exit(1);
}
otp->min_bytes=otp->max_frame_bytes=(1275*3+7)*otp->header.nb_streams;
otp->packet=(unsigned char*)malloc(sizeof(unsigned char)*otp->max_frame_bytes);
if(otp->packet==NULL) {
fprintf(stderr, "Error allocating packet buffer.\n");
exit(1);
}
if(otp->bitrate<0) {
/* Lower default rate for sampling rates [8000-44100) by a factor of (rate+16k)/(64k) */
otp->bitrate=((64000*otp->header.nb_streams+32000*otp->header.nb_coupled)*
(IMIN(48,IMAX(8,((otp->rate<44100?otp->rate:48000)+1000)/1000))+16)+32)>>6;
}
int opusEncoder(int argc, char **argv)
{
static const input_format raw_format = {NULL, 0, raw_open, wav_close, "raw",N_("RAW file reader")};
int option_index=0;
struct option long_options[] =
{
{"quiet", no_argument, NULL, 0},
{"bitrate", required_argument, NULL, 0},
{"hard-cbr",no_argument,NULL, 0},
{"vbr",no_argument,NULL, 0},
{"cvbr",no_argument,NULL, 0},
{"comp", required_argument, NULL, 0},
{"complexity", required_argument, NULL, 0},
{"framesize", required_argument, NULL, 0},
{"expect-loss", required_argument, NULL, 0},
{"downmix-mono",no_argument,NULL, 0},
{"downmix-stereo",no_argument,NULL, 0},
{"no-downmix",no_argument,NULL, 0},
{"max-delay", required_argument, NULL, 0},
{"serial", required_argument, NULL, 0},
{"save-range", required_argument, NULL, 0},
{"set-ctl-int", required_argument, NULL, 0},
{"help", no_argument, NULL, 0},
{"raw", no_argument, NULL, 0},
{"raw-bits", required_argument, NULL, 0},
{"raw-rate", required_argument, NULL, 0},
{"raw-chan", required_argument, NULL, 0},
{"raw-endianness", required_argument, NULL, 0},
{"ignorelength", no_argument, NULL, 0},
{"rate", required_argument, NULL, 0},
{"version", no_argument, NULL, 0},
{"version-short", no_argument, NULL, 0},
{"comment", required_argument, NULL, 0},
{"artist", required_argument, NULL, 0},
{"title", required_argument, NULL, 0},
{"album", required_argument, NULL, 0},
{"date", required_argument, NULL, 0},
{"genre", required_argument, NULL, 0},
{"picture", required_argument, NULL, 0},
{"padding", required_argument, NULL, 0},
{"discard-comments", no_argument, NULL, 0},
{"discard-pictures", no_argument, NULL, 0},
{0, 0, 0, 0}
};
int i, ret;
int cline_size;
OpusMSEncoder *st;
const char *opus_version;
unsigned char *packet;
float *input;
/*I/O*/
oe_enc_opt inopt;
const input_format *in_format;
char *inFile;
char *outFile;
char *range_file;
FILE *fin;
FILE *fout;
FILE *frange;
ogg_stream_state os;
ogg_page og;
ogg_packet op;
ogg_int64_t last_granulepos=0;
ogg_int64_t enc_granulepos=0;
ogg_int64_t original_samples=0;
ogg_int32_t id=-1;
int last_segments=0;
int eos=0;
OpusHeader header;
char ENCODER_string[1024];
/*Counters*/
opus_int64 nb_encoded=0;
opus_int64 bytes_written=0;
opus_int64 pages_out=0;
opus_int64 total_bytes=0;
opus_int64 total_samples=0;
opus_int32 nbBytes;
opus_int32 nb_samples;
opus_int32 peak_bytes=0;
opus_int32 min_bytes;
time_t start_time;
time_t stop_time;
time_t last_spin=0;
int last_spin_len=0;
/*Settings*/
int quiet=0;
int max_frame_bytes;
opus_int32 bitrate=-1;
opus_int32 rate=48000;
opus_int32 coding_rate=48000;
opus_int32 frame_size=960;
int chan=2;
int with_hard_cbr=0;
int with_cvbr=0;
int expect_loss=0;
int complexity=10;
int downmix=0;
int *opt_ctls_ctlval;
int opt_ctls=0;
int max_ogg_delay=48000; /*48kHz samples*/
int seen_file_icons=0;
int comment_padding=512;
int serialno;
opus_int32 lookahead=0;
#ifdef WIN_UNICODE
int argc_utf8;
char **argv_utf8;
#endif
if(query_cpu_support()){
fprintf(stderr,"\n\n** WARNING: This program was compiled with SSE%s\n",query_cpu_support()>1?"2":"");
fprintf(stderr," but this CPU claims to lack these instructions. **\n\n");
}
#ifdef WIN_UNICODE
(void)argc;
(void)argv;
init_commandline_arguments_utf8(&argc_utf8, &argv_utf8);
#endif
opt_ctls_ctlval=NULL;
frange=NULL;
range_file=NULL;
in_format=NULL;
inopt.channels=chan;
inopt.rate=coding_rate=rate;
/* 0 dB gain is recommended unless you know what you're doing */
inopt.gain=0;
inopt.samplesize=16;
inopt.endianness=0;
inopt.rawmode=0;
inopt.ignorelength=0;
inopt.copy_comments=1;
inopt.copy_pictures=1;
start_time = time(NULL);
srand(((getpid()&65535)<<15)^start_time);
serialno=rand();
opus_version=opus_get_version_string();
/*Vendor string should just be the encoder library,
the ENCODER comment specifies the tool used.*/
comment_init(&inopt.comments, &inopt.comments_length, opus_version);
// snprintf(ENCODER_string, sizeof(ENCODER_string), "opusenc from %s %s",PACKAGE_NAME,PACKAGE_VERSION);
comment_add(&inopt.comments, &inopt.comments_length, "ENCODER", ENCODER_string);
/*Process command-line options*/
cline_size=0;
while(1){
int c;
int save_cmd=1;
c=getopt_long(argc_utf8, argv_utf8, "hV",
long_options, &option_index);
if(c==-1)
break;
switch(c){
case 0:
if(strcmp(long_options[option_index].name,"quiet")==0){
quiet=1;
}else if(strcmp(long_options[option_index].name,"bitrate")==0){
bitrate=atof(optarg)*1000.;
}else if(strcmp(long_options[option_index].name,"hard-cbr")==0){
with_hard_cbr=1;
with_cvbr=0;
}else if(strcmp(long_options[option_index].name,"cvbr")==0){
with_cvbr=1;
with_hard_cbr=0;
}else if(strcmp(long_options[option_index].name,"vbr")==0){
with_cvbr=0;
with_hard_cbr=0;
}else if(strcmp(long_options[option_index].name,"help")==0){
usage();
return 0;//exit(0);
}else if(strcmp(long_options[option_index].name,"version")==0){
opustoolsversion(opus_version);
return 0;//exit(0);
}else if(strcmp(long_options[option_index].name,"version-short")==0){
opustoolsversion_short(opus_version);
return 0;//exit(0);
}else if(strcmp(long_options[option_index].name,"ignorelength")==0){
inopt.ignorelength=1;
}else if(strcmp(long_options[option_index].name,"raw")==0){
inopt.rawmode=1;
save_cmd=0;
}else if(strcmp(long_options[option_index].name,"raw-bits")==0){
inopt.rawmode=1;
inopt.samplesize=atoi(optarg);
save_cmd=0;
if(inopt.samplesize!=8&&inopt.samplesize!=16&&inopt.samplesize!=24){
fprintf(stderr,"Invalid bit-depth: %s\n",optarg);
fprintf(stderr,"--raw-bits must be one of 8,16, or 24\n");
return 0;//exit(1);
}
}else if(strcmp(long_options[option_index].name,"raw-rate")==0){
inopt.rawmode=1;
inopt.rate=atoi(optarg);
save_cmd=0;
}else if(strcmp(long_options[option_index].name,"raw-chan")==0){
inopt.rawmode=1;
inopt.channels=atoi(optarg);
save_cmd=0;
}else if(strcmp(long_options[option_index].name,"raw-endianness")==0){
inopt.rawmode=1;
inopt.endianness=atoi(optarg);
save_cmd=0;
}else if(strcmp(long_options[option_index].name,"downmix-mono")==0){
downmix=1;
}else if(strcmp(long_options[option_index].name,"downmix-stereo")==0){
downmix=2;
}else if(strcmp(long_options[option_index].name,"no-downmix")==0){
downmix=-1;
}else if(strcmp(long_options[option_index].name,"expect-loss")==0){
expect_loss=atoi(optarg);
if(expect_loss>100||expect_loss<0){
fprintf(stderr,"Invalid expect-loss: %s\n",optarg);
fprintf(stderr,"Expected loss is a percent and must be 0-100.\n");
return 0;//exit(1);
}
}else if(strcmp(long_options[option_index].name,"comp")==0 ||
strcmp(long_options[option_index].name,"complexity")==0){
complexity=atoi(optarg);
if(complexity>10||complexity<0){
fprintf(stderr,"Invalid complexity: %s\n",optarg);
fprintf(stderr,"Complexity must be 0-10.\n");
return 0;//exit(1);
}
}else if(strcmp(long_options[option_index].name,"framesize")==0){
if(strcmp(optarg,"2.5")==0)frame_size=120;
else if(strcmp(optarg,"5")==0)frame_size=240;
else if(strcmp(optarg,"10")==0)frame_size=480;
else if(strcmp(optarg,"20")==0)frame_size=960;
else if(strcmp(optarg,"40")==0)frame_size=1920;
else if(strcmp(optarg,"60")==0)frame_size=2880;
else{
fprintf(stderr,"Invalid framesize: %s\n",optarg);
fprintf(stderr,"Framesize must be 2.5, 5, 10, 20, 40, or 60.\n");
return 0;//exit(1);
}
}else if(strcmp(long_options[option_index].name,"max-delay")==0){
max_ogg_delay=floor(atof(optarg)*48.);
if(max_ogg_delay<0||max_ogg_delay>48000){
fprintf(stderr,"Invalid max-delay: %s\n",optarg);
fprintf(stderr,"max-delay 0-1000 ms.\n");
return 0;//exit(1);
}
}else if(strcmp(long_options[option_index].name,"serial")==0){
serialno=atoi(optarg);
}else if(strcmp(long_options[option_index].name,"set-ctl-int")==0){
int len=strlen(optarg),target;
char *spos,*tpos;
spos=strchr(optarg,'=');
if(len<3||spos==NULL||(spos-optarg)<1||(spos-optarg)>=len){
fprintf(stderr, "Invalid set-ctl-int: %s\n", optarg);
fprintf(stderr, "Syntax is --set-ctl-int intX=intY or\n");
fprintf(stderr, "Syntax is --set-ctl-int intS:intX=intY\n");
return 0;//exit(1);
}
tpos=strchr(optarg,':');
if(tpos==NULL){
target=-1;
tpos=optarg-1;
}else target=atoi(optarg);
if((atoi(tpos+1)&1)!=0){
fprintf(stderr, "Invalid set-ctl-int: %s\n", optarg);
fprintf(stderr, "libopus set CTL values are even.\n");
return 0;//exit(1);
}
if(opt_ctls==0)opt_ctls_ctlval=malloc(sizeof(int)*3);
else opt_ctls_ctlval=realloc(opt_ctls_ctlval,sizeof(int)*(opt_ctls+1)*3);
opt_ctls_ctlval[opt_ctls*3]=target;
opt_ctls_ctlval[opt_ctls*3+1]=atoi(tpos+1);
opt_ctls_ctlval[opt_ctls*3+2]=atoi(spos+1);
opt_ctls++;
}else if(strcmp(long_options[option_index].name,"save-range")==0){
frange=fopen_utf8(optarg,"w");
save_cmd=0;
if(frange==NULL){
perror(optarg);
fprintf(stderr,"Could not open save-range file: %s\n",optarg);
fprintf(stderr,"Must provide a writable file name.\n");
return 0;//exit(1);
}
range_file=optarg;
}else if(strcmp(long_options[option_index].name,"comment")==0){
save_cmd=0;
if(!strchr(optarg,'=')){
fprintf(stderr, "Invalid comment: %s\n", optarg);
fprintf(stderr, "Comments must be of the form name=value\n");
return 0;//exit(1);
}
comment_add(&inopt.comments, &inopt.comments_length, NULL, optarg);
}else if(strcmp(long_options[option_index].name,"artist")==0){
save_cmd=0;
comment_add(&inopt.comments, &inopt.comments_length, "artist", optarg);
} else if(strcmp(long_options[option_index].name,"title")==0){
save_cmd=0;
comment_add(&inopt.comments, &inopt.comments_length, "title", optarg);
} else if(strcmp(long_options[option_index].name,"album")==0){
save_cmd=0;
comment_add(&inopt.comments, &inopt.comments_length, "album", optarg);
} else if(strcmp(long_options[option_index].name,"date")==0){
save_cmd=0;
comment_add(&inopt.comments, &inopt.comments_length, "date", optarg);
} else if(strcmp(long_options[option_index].name,"genre")==0){
save_cmd=0;
comment_add(&inopt.comments, &inopt.comments_length, "genre", optarg);
} else if(strcmp(long_options[option_index].name,"picture")==0){
const char *error_message;
char *picture_data;
save_cmd=0;
picture_data=parse_picture_specification(optarg,&error_message,
&seen_file_icons);
if(picture_data==NULL){
fprintf(stderr,"Error parsing picture option: %s\n",error_message);
return 0;//exit(1);
}
comment_add(&inopt.comments,&inopt.comments_length,
"METADATA_BLOCK_PICTURE",picture_data);
free(picture_data);
} else if(strcmp(long_options[option_index].name,"padding")==0){
comment_padding=atoi(optarg);
} else if(strcmp(long_options[option_index].name,"discard-comments")==0){
inopt.copy_comments=0;
inopt.copy_pictures=0;
} else if(strcmp(long_options[option_index].name,"discard-pictures")==0){
inopt.copy_pictures=0;
}
/*Commands whos arguments would leak file paths or just end up as metadata
should have save_cmd=0; to prevent them from being saved in the
command-line tag.*/
break;
case 'h':
usage();
return 0;//exit(0);
break;
case 'V':
opustoolsversion(opus_version);
return 0;//exit(0);
break;
case '?':
usage();
return 0;//exit(1);
break;
}
if(save_cmd && cline_size<(int)sizeof(ENCODER_string)){
ret=snprintf(&ENCODER_string[cline_size], sizeof(ENCODER_string)-cline_size, "%s--%s",cline_size==0?"":" ",long_options[option_index].name);
if(ret<0||ret>=((int)sizeof(ENCODER_string)-cline_size)){
cline_size=sizeof(ENCODER_string);
} else {
cline_size+=ret;
if(optarg){
ret=snprintf(&ENCODER_string[cline_size], sizeof(ENCODER_string)-cline_size, " %s",optarg);
if(ret<0||ret>=((int)sizeof(ENCODER_string)-cline_size)){
cline_size=sizeof(ENCODER_string);
} else {
cline_size+=ret;
}
}
}
}
}
if(argc_utf8-optind!=2){
usage();
return 0;//exit(1);
}
inFile=argv_utf8[optind];
outFile=argv_utf8[optind+1];
if(cline_size>0)comment_add(&inopt.comments, &inopt.comments_length, "ENCODER_OPTIONS", ENCODER_string);
if(strcmp(inFile, "-")==0){
#if defined WIN32 || defined _WIN32
_setmode(_fileno(stdin), _O_BINARY);
#elif defined OS2
_fsetmode(stdin,"b");
#endif
fin=stdin;
}else{
fin=fopen_utf8(inFile, "rb");
if(!fin){
perror(inFile);
return 0;//exit(1);
}
}
if(inopt.rawmode){
in_format = &raw_format;
in_format->open_func(fin, &inopt, NULL, 0);
}else in_format=open_audio_file(fin,&inopt);
if(!in_format){
fprintf(stderr,"Error parsing input file: %s\n",inFile);
return 0;//exit(1);
}
if(downmix==0&&inopt.channels>2&&bitrate>0&&bitrate<(16000*inopt.channels)){
if(!quiet)fprintf(stderr,"Notice: Surround bitrate less than 16kbit/sec/channel, downmixing.\n");
downmix=inopt.channels>8?1:2;
}
if(downmix>0&&downmix<inopt.channels)downmix=setup_downmix(&inopt,downmix);
else downmix=0;
rate=inopt.rate;
chan=inopt.channels;
inopt.skip=0;
/*In order to code the complete length we'll need to do a little padding*/
setup_padder(&inopt,&original_samples);
if(rate>24000)coding_rate=48000;
else if(rate>16000)coding_rate=24000;
else if(rate>12000)coding_rate=16000;
else if(rate>8000)coding_rate=12000;
else coding_rate=8000;
frame_size=frame_size/(48000/coding_rate);
/*Scale the resampler complexity, but only for 48000 output because
the near-cutoff behavior matters a lot more at lower rates.*/
//if(rate!=coding_rate)setup_resample(&inopt,coding_rate==48000?(complexity+1)/2:5,coding_rate);
if(rate!=coding_rate&&complexity!=10&&!quiet){
fprintf(stderr,"Notice: Using resampling with complexity<10.\n");
fprintf(stderr,"Opusenc is fastest with 48, 24, 16, 12, or 8kHz input.\n\n");
}
/*OggOpus headers*/ /*FIXME: broke forcemono*/
header.channels=chan;
header.channel_mapping=header.channels>8?255:chan>2;
header.input_sample_rate=rate;
header.gain=inopt.gain;
/*Initialize OPUS encoder*/
/*Framesizes <10ms can only use the MDCT modes, so we switch on RESTRICTED_LOWDELAY
to save the extra 2.5ms of codec lookahead when we'll be using only small frames.*/
st=opus_multistream_surround_encoder_create(coding_rate, chan, header.channel_mapping, &header.nb_streams, &header.nb_coupled,
header.stream_map, frame_size<480/(48000/coding_rate)?OPUS_APPLICATION_RESTRICTED_LOWDELAY:OPUS_APPLICATION_AUDIO, &ret);
if(ret!=OPUS_OK){
fprintf(stderr, "Error cannot create encoder: %s\n", opus_strerror(ret));
return 0;//exit(1);
}
min_bytes=max_frame_bytes=(1275*3+7)*header.nb_streams;
packet=malloc(sizeof(unsigned char)*max_frame_bytes);
if(packet==NULL){
fprintf(stderr,"Error allocating packet buffer.\n");
return 0;//exit(1);
}
if(bitrate<0){
/*Lower default rate for sampling rates [8000-44100) by a factor of (rate+16k)/(64k)*/
bitrate=((64000*header.nb_streams+32000*header.nb_coupled)*
(IMIN(48,IMAX(8,((rate<44100?rate:48000)+1000)/1000))+16)+32)>>6;
}
void OggOpusFile::Init()
{
inopt.skip=0;
//In our case, its 160 samples/frame. Changing rate to anything rather than 8000Hz may require significant change in the way of handle number of samples to fix the encoder
frame_size=frame_size/(48000/coding_rate);
/*OggOpus headers*/ /*FIXME: broke forcemono*/
header.channels=chan;
header.channel_mapping= 0;//header.channels>8?255:chan>2; //=0 for wav
header.input_sample_rate=rate;
header.gain=inopt.gain; //=0 here
st=opus_multistream_surround_encoder_create(coding_rate, chan, header.channel_mapping, &header.nb_streams, &header.nb_coupled,
header.stream_map, frame_size<480/(48000/coding_rate)?OPUS_APPLICATION_RESTRICTED_LOWDELAY:OPUS_APPLICATION_AUDIO, &ret);
if(ret!=OPUS_OK){
fprintf(stderr, "Error cannot create encoder: %s\n", opus_strerror(ret));
exit(1);
}
max_frame_bytes=(1275*3+7)*header.nb_streams;
min_bytes=max_frame_bytes;
m_outBuf = (unsigned char*)malloc(max_frame_bytes);
if(m_outBuf==NULL){
fprintf(stderr,"Error allocating m_outBuf buffer.\n");
exit(1);
}
//We would set bitrate configurable as low as 6k
//Or use the provided formulae to calculate a optimized bitrate
if(bitrate<0){
/*Lower default rate for sampling rates [8000-44100) by a factor of (rate+16k)/(64k)*/
// bitrate=((64000*header.nb_streams+32000*header.nb_coupled)*
// (IMIN(48,IMAX(8,((rate<44100?rate:48000)+1000)/1000))+16)+32)>>6;
bitrate=6000;
}
if(bitrate>(1024000*chan)||bitrate<500){
fprintf(stderr,"Error: Bitrate %d bits/sec is insane.\nDid you mistake bits for kilobits?\n",bitrate);
fprintf(stderr,"--bitrate values from 6-256 kbit/sec per channel are meaningful.\n");
exit(1);
}
bitrate=IMIN(chan*256000,bitrate);
ret=opus_multistream_encoder_ctl(st, OPUS_SET_BITRATE(bitrate));
if(ret!=OPUS_OK){
fprintf(stderr,"Error OPUS_SET_BITRATE returned: %s\n",opus_strerror(ret));
exit(1);
}
ret=opus_multistream_encoder_ctl(st, OPUS_SET_VBR(!with_hard_cbr));
if(ret!=OPUS_OK){
fprintf(stderr,"Error OPUS_SET_VBR returned: %s\n",opus_strerror(ret));
exit(1);
}
if(!with_hard_cbr){
ret=opus_multistream_encoder_ctl(st, OPUS_SET_VBR_CONSTRAINT(with_cvbr));
if(ret!=OPUS_OK){
fprintf(stderr,"Error OPUS_SET_VBR_CONSTRAINT returned: %s\n",opus_strerror(ret));
exit(1);
}
}
ret=opus_multistream_encoder_ctl(st, OPUS_SET_COMPLEXITY(complexity));
if(ret!=OPUS_OK){
fprintf(stderr,"Error OPUS_SET_COMPLEXITY returned: %s\n",opus_strerror(ret));
exit(1);
}
ret=opus_multistream_encoder_ctl(st, OPUS_SET_PACKET_LOSS_PERC(expect_loss));
if(ret!=OPUS_OK){
fprintf(stderr,"Error OPUS_SET_PACKET_LOSS_PERC returned: %s\n",opus_strerror(ret));
exit(1);
}
#ifdef OPUS_SET_LSB_DEPTH
ret=opus_multistream_encoder_ctl(st, OPUS_SET_LSB_DEPTH(IMAX(8,IMIN(24,inopt.samplesize))));
if(ret!=OPUS_OK){
fprintf(stderr,"Warning OPUS_SET_LSB_DEPTH returned: %s\n",opus_strerror(ret));
}
#endif
for(i=0;i<opt_ctls;i++){
int target=opt_ctls_ctlval[i*3];
if(target==-1){
ret=opus_multistream_encoder_ctl(st,opt_ctls_ctlval[i*3+1],opt_ctls_ctlval[i*3+2]);
if(ret!=OPUS_OK){
fprintf(stderr,"Error opus_multistream_encoder_ctl(st,%d,%d) returned: %s\n",opt_ctls_ctlval[i*3+1],opt_ctls_ctlval[i*3+2],opus_strerror(ret));
exit(1);
}
}else if(target<header.nb_streams){
OpusEncoder *oe;
opus_multistream_encoder_ctl(st,OPUS_MULTISTREAM_GET_ENCODER_STATE(target,&oe));
ret=opus_encoder_ctl(oe, opt_ctls_ctlval[i*3+1],opt_ctls_ctlval[i*3+2]);
if(ret!=OPUS_OK){
fprintf(stderr,"Error opus_encoder_ctl(st[%d],%d,%d) returned: %s\n",target,opt_ctls_ctlval[i*3+1],opt_ctls_ctlval[i*3+2],opus_strerror(ret));
exit(1);
}
}else{
fprintf(stderr,"Error --set-ctl-int target stream %d is higher than the maximum stream number %d.\n",target,header.nb_streams-1);
exit(1);
}
}
/*We do the lookahead check late so user CTLs can change it*/
ret=opus_multistream_encoder_ctl(st, OPUS_GET_LOOKAHEAD(&lookahead));
if(ret!=OPUS_OK){
fprintf(stderr,"Error OPUS_GET_LOOKAHEAD returned: %s\n",opus_strerror(ret));
exit(1);
}
inopt.skip+=lookahead;
/*Regardless of the rate we're coding at the ogg timestamping/skip is
always timed at 48000.*/
header.preskip=inopt.skip*(48000./coding_rate);
/* Extra samples that need to be read to compensate for the pre-skip */
inopt.extraout=(int)header.preskip*(rate/48000.);
/*Initialize Ogg stream struct*/
if(ogg_stream_init(&os, serialno)==-1){
fprintf(stderr,"Error: stream init failed\n");
exit(1);
}
int opus_app;
fprintf(stderr,"Encoding using 1.1");
opus_multistream_encoder_ctl(st,OPUS_GET_APPLICATION(&opus_app));
if(opus_app==OPUS_APPLICATION_VOIP)fprintf(stderr," (VoIP)\n");
else if(opus_app==OPUS_APPLICATION_AUDIO)fprintf(stderr," (audio)\n");
else if(opus_app==OPUS_APPLICATION_RESTRICTED_LOWDELAY)fprintf(stderr," (low-delay)\n");
else fprintf(stderr," (unknown)\n");
fprintf(stderr,"-----------------------------------------------------\n");
fprintf(stderr," Input: %0.6gkHz %d channel%s\n",
header.input_sample_rate/1000.,chan,chan<2?"":"s");
fprintf(stderr," Output: %d channel%s (",header.channels,header.channels<2?"":"s");
if(header.nb_coupled>0)fprintf(stderr,"%d coupled",header.nb_coupled*2);
if(header.nb_streams-header.nb_coupled>0)fprintf(stderr,
"%s%d uncoupled",header.nb_coupled>0?", ":"",
header.nb_streams-header.nb_coupled);
fprintf(stderr,")\n %0.2gms packets, %0.6gkbit/sec%s\n",
frame_size/(coding_rate/1000.), bitrate/1000.,
with_hard_cbr?" CBR":with_cvbr?" CVBR":" VBR");
fprintf(stderr," Preskip: %d\n",header.preskip);
}
int convert( const char* source_path, const char* target_path, int bitRate, int quality) {
static const input_format raw_format = {NULL, 0, raw_open, wav_close, "raw",N_("RAW file reader")};
int i, ret;
int cline_size;
OpusMSEncoder *st;
const char *opus_version;
unsigned char *packet;
#ifdef FIXED_POINT
opus_int16 *input;
#else
float *input;
#endif
/*I/O*/
oe_enc_opt inopt;
const input_format *in_format;
char *range_file;
FILE *fin;
FILE *fout;
FILE *frange;
ogg_stream_state os;
ogg_page og;
ogg_packet op;
ogg_int64_t last_granulepos=0;
ogg_int64_t enc_granulepos=0;
ogg_int64_t original_samples=0;
ogg_int32_t id=-1;
int last_segments=0;
int eos=0;
OpusHeader header;
char ENCODER_string[1024];
/*Counters*/
opus_int64 nb_encoded=0;
opus_int64 bytes_written=0;
opus_int64 pages_out=0;
opus_int64 total_bytes=0;
opus_int64 total_samples=0;
opus_int32 nbBytes;
opus_int32 nb_samples;
opus_int32 peak_bytes=0;
opus_int32 min_bytes;
time_t start_time;
time_t stop_time;
time_t last_spin=0;
int last_spin_len=0;
/*Settings*/
int quiet=0;
int max_frame_bytes;
opus_int32 bitrate=bitRate * 1000;
opus_int32 rate=48000;
opus_int32 coding_rate=48000;
opus_int32 frame_size=960;
int chan=2;
int with_hard_cbr=0;
int with_cvbr=0;
int expect_loss=0;
int complexity=10 - quality; // 10 -- best
int downmix=0;
int *opt_ctls_ctlval;
int opt_ctls=0;
int max_ogg_delay=48000; // 48kHz samples
int seen_file_icons=0;
int comment_padding=512;
int serialno;
opus_int32 lookahead=0;
opt_ctls_ctlval=NULL;
frange=NULL;
range_file=NULL;
in_format=NULL;
inopt.channels=chan;
inopt.rate=coding_rate=rate;
// 0 dB gain is recommended unless you know what you're doing
inopt.gain=0;
inopt.samplesize=16;
inopt.endianness=0;
inopt.rawmode=0;
inopt.ignorelength=0;
inopt.copy_comments=1;
start_time = time(NULL);
srand(((getpid()&65535)<<15)^start_time);
serialno=rand();
opus_version= "libopus 1.1.1"; //opus_get_version_string();
// Vendor string should just be the encoder library, the ENCODER comment specifies the tool used.
if( comment_init(&inopt.comments, &inopt.comments_length, opus_version) ) {
return 1; // failed
}
snprintf(ENCODER_string, sizeof(ENCODER_string), "%s %s",PACKAGE_NAME,PACKAGE_VERSION);
if( comment_add(&inopt.comments, &inopt.comments_length, "ENCODER", ENCODER_string) ) {
return 1; // failed
}
if(cline_size>0){
if( comment_add(&inopt.comments, &inopt.comments_length, "ENCODER_OPTIONS", ENCODER_string) ) {
return 1; // failed
}
}
fin=fopen_utf8(source_path, "rb");
if(!fin){
perror(source_path);
return 1;
}
if(inopt.rawmode){
in_format = &raw_format;
in_format->open_func(fin, &inopt, NULL, 0);
}else in_format=open_audio_file(fin,&inopt);
if(!in_format){
LOGD("Error parsing input file: %s\n",source_path);
return 1;
}
if(downmix==0&&inopt.channels>2&&bitrate>0&&bitrate<(16000*inopt.channels)){
if(!quiet)LOGD("Notice: Surround bitrate less than 16kbit/sec/channel, downmixing.\n");
downmix=inopt.channels>8?1:2;
}
if(downmix>0&&downmix<inopt.channels)downmix=setup_downmix(&inopt,downmix);
else downmix=0;
rate=inopt.rate;
chan=inopt.channels;
inopt.skip=0;
// In order to code the complete length we'll need to do a little padding
setup_padder(&inopt,&original_samples);
if(rate>24000)coding_rate=48000;
else if(rate>16000)coding_rate=24000;
else if(rate>12000)coding_rate=16000;
else if(rate>8000)coding_rate=12000;
else coding_rate=8000;
frame_size=frame_size/(48000/coding_rate);
// Scale the resampler complexity, but only for 48000 output because
// the near-cutoff behavior matters a lot more at lower rates.
// if(rate!=coding_rate)setup_resample(&inopt,coding_rate==48000?(complexity+1)/2:5,coding_rate);
if(rate!=coding_rate&&complexity!=10&&!quiet){
LOGD("Notice: Using resampling with complexity<10.\n");
LOGD("Opusenc is fastest with 48, 24, 16, 12, or 8kHz input.\n\n");
}
// OggOpus headers // FIXME: broke forcemono
header.channels=chan;
header.channel_mapping=header.channels>8?255:chan>2;
header.input_sample_rate=rate;
header.gain=inopt.gain;
// Initialize OPUS encoder
st=opus_multistream_surround_encoder_create(coding_rate, chan, header.channel_mapping, &header.nb_streams, &header.nb_coupled,
header.stream_map, OPUS_APPLICATION_AUDIO, &ret);
if(ret!=OPUS_OK){
LOGD( "Error cannot create encoder: %s\n", opus_strerror(ret));
return 1;
}
min_bytes=max_frame_bytes=(1275*3+7)*header.nb_streams;
packet=malloc(sizeof(unsigned char)*max_frame_bytes);
if(packet==NULL){
LOGD("Error allocating packet buffer.\n");
return 1;
}
if(bitrate<0){
// Lower default rate for sampling rates [8000-44100) by a factor of (rate+16k)/(64k)
bitrate=((64000*header.nb_streams+32000*header.nb_coupled)*
(IMIN(48,IMAX(8,((rate<44100?rate:48000)+1000)/1000))+16)+32)>>6;
}
