//________________________________________________
// Init lame encoder
// frequence : Impose frequency , 0 means reuse the incoming fq
// mode : ADM_STEREO etc...
// bitrate : Bitrate in kbps (96,192...)
// return 0 : init failed
// 1 : init succeeded
//_______________________________________________
uint8_t AUDMEncoder_Vorbis::init(ADM_audioEncoderDescriptor *config)
{
int ret;
VORBIS_encoderParam *vorbisConf=(VORBIS_encoderParam *)config->param;
ADM_assert(config->paramSize==sizeof(VORBIS_encoderParam));
ogg_packet header1,header2,header3;
int err;
vorbis_info_init(&VI) ;
switch(vorbisConf->mode)
{
case ADM_VORBIS_VBR:
err=vorbis_encode_init(&VI,
_wavheader->channels,
_wavheader->frequency,
-1, // Max bitrate
config->bitrate*1000, //long nominal_bitrate,
-1 //long min_bitrate))
);
break;
case ADM_VORBIS_QUALITY :
err=vorbis_encode_init_vbr(&VI,
_wavheader->channels,
_wavheader->frequency,
vorbisConf->quality/10
);
break;
default:
ADM_assert(0);
}
if (err!=0)
{
delete (vorbisStruct*)_handle;
_handle = NULL;
printf("[vorbis] init error %d\n",err);
return 0;
}
vorbis_analysis_init(&VD, &VI) ;
vorbis_block_init(&VD, &VB);
vorbis_comment_init(&VC);
vorbis_comment_add_tag(&VC, "encoder", "AVIDEMUX2") ;
vorbis_analysis_headerout(&VD, &VC, &header1,
&header2, &header3);
// Store all headers as extra data
// see ogg vorbis decode for details
// we need 3 packets
_extraSize=header1.bytes+header2.bytes+header3.bytes+3*sizeof(uint32_t);
_extraData=new uint8_t[_extraSize];
uint32_t *ex=(uint32_t *)_extraData;
uint8_t *d;
d=_extraData+sizeof(uint32_t)*3;
ex[0]=header1.bytes;
ex[1]=header2.bytes;
ex[2]=header3.bytes;
memcpy(d,header1.packet,ex[0]);
d+=ex[0];
memcpy(d,header2.packet,ex[1]);
d+=ex[1];
memcpy(d,header3.packet,ex[2]);
vorbis_comment_clear(&VC);
printf("\n[Vorbis]Vorbis encoder initialized\n");
switch(vorbisConf->mode)
{
case ADM_VORBIS_VBR:
printf("[Vorbis]CBR Bitrate:%lu\n",config->bitrate);
break;
case ADM_VORBIS_QUALITY: //FIXME FIXME FIXME
printf("[Vorbis]VBR Quality:%.1f\n",vorbisConf->quality);
break;
default:
ADM_assert(0);
}
printf("[Vorbis]Channels :%lu\n",_wavheader->channels);
printf("[Vorbis]Frequency :%lu\n",_wavheader->frequency);
return 1;
}
/* The following function is basically a hacked version of the code in
* examples/encoder_example.c */
void
write_vorbis_data_or_die (const char *filename, int srate, float q, const float * data, int count, int ch)
{
FILE * file ;
ogg_stream_state os;
ogg_page og;
ogg_packet op;
vorbis_info vi;
vorbis_comment vc;
vorbis_dsp_state vd;
vorbis_block vb;
int eos = 0, ret;
if ((file = fopen (filename, "wb")) == NULL) {
printf("\n\nError : fopen failed : %s\n", strerror (errno)) ;
exit (1) ;
}
/********** Encode setup ************/
vorbis_info_init (&vi);
ret = vorbis_encode_init_vbr (&vi,ch,srate,q);
if (ret) {
printf ("vorbis_encode_init_vbr return %d\n", ret) ;
exit (1) ;
}
vorbis_comment_init (&vc);
vorbis_comment_add_tag (&vc,"ENCODER","test/util.c");
vorbis_analysis_init (&vd,&vi);
vorbis_block_init (&vd,&vb);
ogg_stream_init (&os,12345678);
{
ogg_packet header;
ogg_packet header_comm;
ogg_packet header_code;
vorbis_analysis_headerout (&vd,&vc,&header,&header_comm,&header_code);
ogg_stream_packetin (&os,&header);
ogg_stream_packetin (&os,&header_comm);
ogg_stream_packetin (&os,&header_code);
/* Ensures the audio data will start on a new page. */
while (!eos){
int result = ogg_stream_flush (&os,&og);
if (result == 0)
break;
fwrite (og.header,1,og.header_len,file);
fwrite (og.body,1,og.body_len,file);
}
}
{
/* expose the buffer to submit data */
float **buffer = vorbis_analysis_buffer (&vd,count);
int i;
for(i=0;i<ch;i++)
memcpy (buffer [i], data, count * sizeof (float)) ;
/* tell the library how much we actually submitted */
vorbis_analysis_wrote (&vd,count);
vorbis_analysis_wrote (&vd,0);
}
while (vorbis_analysis_blockout (&vd,&vb) == 1) {
vorbis_analysis (&vb,NULL);
vorbis_bitrate_addblock (&vb);
while (vorbis_bitrate_flushpacket (&vd,&op)) {
ogg_stream_packetin (&os,&op);
while (!eos) {
int result = ogg_stream_pageout (&os,&og);
if (result == 0)
break;
fwrite (og.header,1,og.header_len,file);
fwrite (og.body,1,og.body_len,file);
if (ogg_page_eos (&og))
eos = 1;
}
}
}
ogg_stream_clear (&os);
vorbis_block_clear (&vb);
vorbis_dsp_clear (&vd);
vorbis_comment_clear (&vc);
vorbis_info_clear (&vi);
fclose (file) ;
}
void rmdInitEncoder(ProgData *pdata,EncData *enc_data_t,int buffer_ready){
int y0,
y1,
y2,
fname_length;
ogg_stream_state m_ogg_skel;
ogg_page skel_og_pg;
fisbone_packet skel_fbv, //video fisbone packet
skel_fba ; //audio fisbone packet
(pdata)->enc_data=enc_data_t;
fname_length=strlen(pdata->args.filename);
if(!(fname_length>4 &&
pdata->args.filename[fname_length-4] == '.' &&
(pdata->args.filename[fname_length-3] == 'o' ||
pdata->args.filename[fname_length-3] == 'O') &&
(pdata->args.filename[fname_length-2] == 'g' ||
pdata->args.filename[fname_length-2] == 'G') &&
(pdata->args.filename[fname_length-1] == 'v' ||
pdata->args.filename[fname_length-1] == 'V'))){
char *new_name=malloc(fname_length+5);
strcpy(new_name,pdata->args.filename);
strcat(new_name,".ogv");
free(pdata->args.filename);
pdata->args.filename=new_name;
}
if (!pdata->args.overwrite) {
rmdIncrementalNaming(&(pdata)->args.filename);
fprintf(stderr, "Output file: %s\n", pdata->args.filename);
}
enc_data_t->fp=fopen((pdata)->args.filename,"w");
if(enc_data_t->fp==NULL){
fprintf(stderr,"Cannot open file %s for writting!\n",
(pdata)->args.filename);
exit(13);
}
//each stream must have a unique
srand(time(NULL));
y0=rand()+1;
y1=rand()+1;
y2=rand()+1;
y2+=(y1==y2);
y0=(((y0==y1)||(y0==y2))?(y1+y2):y0);
//init ogg streams
//skeleton first
ogg_stream_init(&m_ogg_skel,y0);
m_add_fishead_packet(&m_ogg_skel);
if(ogg_stream_pageout(&m_ogg_skel,&skel_og_pg)!= 1){
fprintf (stderr, "Internal Ogg library error.\n");
exit (2);
}
fwrite(skel_og_pg.header,1,skel_og_pg.header_len,enc_data_t->fp);
fwrite(skel_og_pg.body,1,skel_og_pg.body_len,enc_data_t->fp);
ogg_stream_init(&enc_data_t->m_ogg_ts,y1);
if(!pdata->args.nosound)
ogg_stream_init(&enc_data_t->m_ogg_vs,y2);
theora_info_init(&enc_data_t->m_th_inf);
enc_data_t->m_th_inf.frame_width = pdata->brwin.rrect.width;
enc_data_t->m_th_inf.frame_height = pdata->brwin.rrect.height;
enc_data_t->m_th_inf.width = ((enc_data_t->m_th_inf.frame_width + 15) >> 4) << 4;
enc_data_t->m_th_inf.height = ((enc_data_t->m_th_inf.frame_height + 15) >> 4) << 4;
enc_data_t->m_th_inf.offset_x = 0;
enc_data_t->m_th_inf.offset_y = 0;
enc_data_t->m_th_inf.fps_numerator = pdata->args.fps * 100.0;
enc_data_t->m_th_inf.fps_denominator = 100;
enc_data_t->m_th_inf.aspect_numerator = 1;
enc_data_t->m_th_inf.aspect_denominator = 1;
enc_data_t->m_th_inf.colorspace = OC_CS_UNSPECIFIED;
enc_data_t->m_th_inf.pixelformat = OC_PF_420;
enc_data_t->m_th_inf.target_bitrate = pdata->args.v_bitrate;
enc_data_t->m_th_inf.quality = pdata->args.v_quality;
enc_data_t->m_th_inf.dropframes_p = 0;
enc_data_t->m_th_inf.quick_p = 1;
enc_data_t->m_th_inf.keyframe_auto_p = 1;
enc_data_t->m_th_inf.keyframe_frequency = 64;
enc_data_t->m_th_inf.keyframe_frequency_force = 64;
enc_data_t->m_th_inf.keyframe_data_target_bitrate = enc_data_t->m_th_inf.quality * 1.5;
enc_data_t->m_th_inf.keyframe_auto_threshold = 80;
enc_data_t->m_th_inf.keyframe_mindistance = 8;
enc_data_t->m_th_inf.noise_sensitivity = 1;
enc_data_t->m_th_inf.sharpness = 2;
theora_encode_init(&enc_data_t->m_th_st,&enc_data_t->m_th_inf);
if(!pdata->args.nosound){
int ret;
vorbis_info_init(&enc_data_t->m_vo_inf);
ret = vorbis_encode_init_vbr(&enc_data_t->m_vo_inf,
pdata->args.channels,
pdata->args.frequency,
(float)pdata->args.s_quality*0.1);
if(ret){
fprintf(stderr,"Error while setting up vorbis stream quality!\n");
exit(2);
}
vorbis_comment_init(&enc_data_t->m_vo_cmmnt);
vorbis_analysis_init(&enc_data_t->m_vo_dsp,&enc_data_t->m_vo_inf);
vorbis_block_init(&enc_data_t->m_vo_dsp,&enc_data_t->m_vo_block);
}
theora_encode_header(&enc_data_t->m_th_st,&enc_data_t->m_ogg_pckt1);
ogg_stream_packetin(&enc_data_t->m_ogg_ts,&enc_data_t->m_ogg_pckt1);
if(ogg_stream_pageout(&enc_data_t->m_ogg_ts,&enc_data_t->m_ogg_pg)!=1){
fprintf(stderr,"Internal Ogg library error.\n");
exit(2);
}
fwrite(enc_data_t->m_ogg_pg.header,1,
enc_data_t->m_ogg_pg.header_len,
enc_data_t->fp);
fwrite(enc_data_t->m_ogg_pg.body,1,
enc_data_t->m_ogg_pg.body_len,
enc_data_t->fp);
theora_comment_init(&enc_data_t->m_th_cmmnt);
theora_comment_add_tag(&enc_data_t->m_th_cmmnt,"recordMyDesktop",VERSION);
theora_encode_comment(&enc_data_t->m_th_cmmnt,&enc_data_t->m_ogg_pckt1);
ogg_stream_packetin(&enc_data_t->m_ogg_ts,&enc_data_t->m_ogg_pckt1);
theora_encode_tables(&enc_data_t->m_th_st,&enc_data_t->m_ogg_pckt1);
ogg_stream_packetin(&enc_data_t->m_ogg_ts,&enc_data_t->m_ogg_pckt1);
if(!pdata->args.nosound){
ogg_packet header;
ogg_packet header_comm;
ogg_packet header_code;
vorbis_analysis_headerout(&enc_data_t->m_vo_dsp,
&enc_data_t->m_vo_cmmnt,
&header,&header_comm,
&header_code);
ogg_stream_packetin(&enc_data_t->m_ogg_vs,&header);
if(ogg_stream_pageout(&enc_data_t->m_ogg_vs,&enc_data_t->m_ogg_pg)!=1){
fprintf(stderr,"Internal Ogg library error.\n");
exit(2);
}
fwrite(enc_data_t->m_ogg_pg.header,1,
enc_data_t->m_ogg_pg.header_len,
enc_data_t->fp);
fwrite(enc_data_t->m_ogg_pg.body,1,
enc_data_t->m_ogg_pg.body_len,
enc_data_t->fp);
ogg_stream_packetin(&enc_data_t->m_ogg_vs,&header_comm);
ogg_stream_packetin(&enc_data_t->m_ogg_vs,&header_code);
}
//fishbone packets go here
memset(&skel_fbv,0,sizeof(skel_fbv));
skel_fbv.serial_no=enc_data_t->m_ogg_ts.serialno;
skel_fbv.nr_header_packet=3;
skel_fbv.granule_rate_n=enc_data_t->m_th_inf.fps_numerator;
skel_fbv.granule_rate_d=enc_data_t->m_th_inf.fps_denominator;
skel_fbv.start_granule=0;
skel_fbv.preroll=0;
skel_fbv.granule_shift=theora_granule_shift(&enc_data_t->m_th_inf);
add_message_header_field(&skel_fbv,
"Content-Type",
"video/theora");
add_fisbone_to_stream(&m_ogg_skel,&skel_fbv);
if(!pdata->args.nosound){
memset(&skel_fba,0,sizeof(skel_fba));
skel_fba.serial_no=enc_data_t->m_ogg_vs.serialno;
skel_fba.nr_header_packet=3;
skel_fba.granule_rate_n=pdata->args.frequency;
skel_fba.granule_rate_d=(ogg_int64_t)1;
skel_fba.start_granule=0;
skel_fba.preroll=2;
skel_fba.granule_shift=0;
add_message_header_field(&skel_fba,
"Content-Type",
"audio/vorbis");
add_fisbone_to_stream(&m_ogg_skel,&skel_fba);
}
while(1){
int result = ogg_stream_flush(&m_ogg_skel, &skel_og_pg);
if(result<0){
fprintf (stderr, "Internal Ogg library error.\n");
exit(2);
}
if(result==0)
break;
fwrite(skel_og_pg.header,1,skel_og_pg.header_len,enc_data_t->fp);
fwrite(skel_og_pg.body,1,skel_og_pg.body_len,enc_data_t->fp);
}
while(1){
int result = ogg_stream_flush(&enc_data_t->m_ogg_ts,
&enc_data_t->m_ogg_pg);
if(result<0){
fprintf(stderr,"Internal Ogg library error.\n");
exit(2);
}
if(result==0)break;
fwrite(enc_data_t->m_ogg_pg.header,1,
enc_data_t->m_ogg_pg.header_len,
enc_data_t->fp);
fwrite(enc_data_t->m_ogg_pg.body,1,
enc_data_t->m_ogg_pg.body_len,
enc_data_t->fp);
}
if(!pdata->args.nosound){
while(1){
int result=ogg_stream_flush(&enc_data_t->m_ogg_vs,
&enc_data_t->m_ogg_pg);
if(result<0){
fprintf(stderr,"Internal Ogg library error.\n");
exit(2);
}
if(result==0)break;
fwrite(enc_data_t->m_ogg_pg.header,1,
enc_data_t->m_ogg_pg.header_len,
enc_data_t->fp);
fwrite(enc_data_t->m_ogg_pg.body,1,
enc_data_t->m_ogg_pg.body_len,
enc_data_t->fp);
}
}
//skeleton eos
add_eos_packet_to_stream(&m_ogg_skel);
if(ogg_stream_flush(&m_ogg_skel,&skel_og_pg)<0){
fprintf(stderr,"Internal Ogg library error.\n");
exit(2);
}
fwrite(skel_og_pg.header,1,skel_og_pg.header_len,enc_data_t->fp);
fwrite(skel_og_pg.body,1,skel_og_pg.body_len,enc_data_t->fp);
//theora buffer allocation, if any
if(!buffer_ready){
enc_data_t->yuv.y=(unsigned char *)malloc(enc_data_t->m_th_inf.height*
enc_data_t->m_th_inf.width);
enc_data_t->yuv.u=(unsigned char *)malloc(enc_data_t->m_th_inf.height*
enc_data_t->m_th_inf.width/4);
enc_data_t->yuv.v=(unsigned char *)malloc(enc_data_t->m_th_inf.height*
enc_data_t->m_th_inf.width/4);
enc_data_t->yuv.y_width=enc_data_t->m_th_inf.width;
enc_data_t->yuv.y_height=enc_data_t->m_th_inf.height;
enc_data_t->yuv.y_stride=enc_data_t->m_th_inf.width;
enc_data_t->yuv.uv_width=enc_data_t->m_th_inf.width/2;
enc_data_t->yuv.uv_height=enc_data_t->m_th_inf.height/2;
enc_data_t->yuv.uv_stride=enc_data_t->m_th_inf.width/2;
enc_data_t->x_offset=enc_data_t->m_th_inf.offset_x;
enc_data_t->y_offset=enc_data_t->m_th_inf.offset_y;
}
theora_info_clear(&enc_data_t->m_th_inf);
}
int ExportOGG::Export(AudacityProject *project,
int numChannels,
const wxString &fName,
bool selectionOnly,
double t0,
double t1,
MixerSpec *mixerSpec,
const Tags *metadata,
int WXUNUSED(subformat))
{
double rate = project->GetRate();
const TrackList *tracks = project->GetTracks();
double quality = (gPrefs->Read(wxT("/FileFormats/OggExportQuality"), 50)/(float)100.0);
wxLogNull logNo; // temporarily disable wxWidgets error messages
int updateResult = eProgressSuccess;
int eos = 0;
FileIO outFile(fName, FileIO::Output);
if (!outFile.IsOpened()) {
wxMessageBox(_("Unable to open target file for writing"));
return false;
}
// All the Ogg and Vorbis encoding data
ogg_stream_state stream;
ogg_page page;
ogg_packet packet;
vorbis_info info;
vorbis_comment comment;
vorbis_dsp_state dsp;
vorbis_block block;
// Encoding setup
vorbis_info_init(&info);
vorbis_encode_init_vbr(&info, numChannels, int(rate + 0.5), quality);
// Retrieve tags
if (!FillComment(project, &comment, metadata)) {
return false;
}
// Set up analysis state and auxiliary encoding storage
vorbis_analysis_init(&dsp, &info);
vorbis_block_init(&dsp, &block);
// Set up packet->stream encoder. According to encoder example,
// a random serial number makes it more likely that you can make
// chained streams with concatenation.
srand(time(NULL));
ogg_stream_init(&stream, rand());
// First we need to write the required headers:
// 1. The Ogg bitstream header, which contains codec setup params
// 2. The Vorbis comment header
// 3. The bitstream codebook.
//
// After we create those our responsibility is complete, libvorbis will
// take care of any other ogg bistream constraints (again, according
// to the example encoder source)
ogg_packet bitstream_header;
ogg_packet comment_header;
ogg_packet codebook_header;
vorbis_analysis_headerout(&dsp, &comment, &bitstream_header, &comment_header,
&codebook_header);
// Place these headers into the stream
ogg_stream_packetin(&stream, &bitstream_header);
ogg_stream_packetin(&stream, &comment_header);
ogg_stream_packetin(&stream, &codebook_header);
// Flushing these headers now guarentees that audio data will
// start on a NEW page, which apparently makes streaming easier
while (ogg_stream_flush(&stream, &page)) {
outFile.Write(page.header, page.header_len);
outFile.Write(page.body, page.body_len);
}
const WaveTrackConstArray waveTracks =
tracks->GetWaveTrackConstArray(selectionOnly, false);
{
auto mixer = CreateMixer(waveTracks,
tracks->GetTimeTrack(),
t0, t1,
numChannels, SAMPLES_PER_RUN, false,
rate, floatSample, true, mixerSpec);
ProgressDialog progress(wxFileName(fName).GetName(),
selectionOnly ?
_("Exporting the selected audio as Ogg Vorbis") :
_("Exporting the entire project as Ogg Vorbis"));
while (updateResult == eProgressSuccess && !eos) {
float **vorbis_buffer = vorbis_analysis_buffer(&dsp, SAMPLES_PER_RUN);
sampleCount samplesThisRun = mixer->Process(SAMPLES_PER_RUN);
if (samplesThisRun == 0) {
// Tell the library that we wrote 0 bytes - signalling the end.
vorbis_analysis_wrote(&dsp, 0);
}
else {
for (int i = 0; i < numChannels; i++) {
float *temp = (float *)mixer->GetBuffer(i);
memcpy(vorbis_buffer[i], temp, sizeof(float)*SAMPLES_PER_RUN);
}
// tell the encoder how many samples we have
vorbis_analysis_wrote(&dsp, samplesThisRun);
}
// I don't understand what this call does, so here is the comment
// from the example, verbatim:
//
// vorbis does some data preanalysis, then divvies up blocks
// for more involved (potentially parallel) processing. Get
// a single block for encoding now
while (vorbis_analysis_blockout(&dsp, &block) == 1) {
// analysis, assume we want to use bitrate management
vorbis_analysis(&block, NULL);
vorbis_bitrate_addblock(&block);
while (vorbis_bitrate_flushpacket(&dsp, &packet)) {
// add the packet to the bitstream
ogg_stream_packetin(&stream, &packet);
// From vorbis-tools-1.0/oggenc/encode.c:
// If we've gone over a page boundary, we can do actual output,
// so do so (for however many pages are available).
while (!eos) {
int result = ogg_stream_pageout(&stream, &page);
if (!result) {
break;
}
outFile.Write(page.header, page.header_len);
outFile.Write(page.body, page.body_len);
if (ogg_page_eos(&page)) {
eos = 1;
}
}
}
}
updateResult = progress.Update(mixer->MixGetCurrentTime() - t0, t1 - t0);
}
}
ogg_stream_clear(&stream);
vorbis_block_clear(&block);
vorbis_dsp_clear(&dsp);
vorbis_info_clear(&info);
vorbis_comment_clear(&comment);
outFile.Close();
return updateResult;
}
int main(){
ogg_stream_state os; /* take physical pages, weld into a logical
stream of packets */
ogg_page og; /* one Ogg bitstream page. Vorbis packets are inside */
ogg_packet op; /* one raw packet of data for decode */
vorbis_info vi; /* struct that stores all the static vorbis bitstream
settings */
vorbis_comment vc; /* struct that stores all the user comments */
vorbis_dsp_state vd; /* central working state for the packet->PCM decoder */
vorbis_block vb; /* local working space for packet->PCM decode */
int eos=0,ret;
int i, founddata;
#if defined(macintosh) && defined(__MWERKS__)
int argc = 0;
char **argv = NULL;
argc = ccommand(&argv); /* get a "command line" from the Mac user */
/* this also lets the user set stdin and stdout */
#endif
/* we cheat on the WAV header; we just bypass 44 bytes and never
verify that it matches 16bit/stereo/44.1kHz. This is just an
example, after all. */
#ifdef _WIN32 /* We need to set stdin/stdout to binary mode. Damn windows. */
/* if we were reading/writing a file, it would also need to in
binary mode, eg, fopen("file.wav","wb"); */
/* Beware the evil ifdef. We avoid these where we can, but this one we
cannot. Don't add any more, you'll probably go to hell if you do. */
_setmode( _fileno( stdin ), _O_BINARY );
_setmode( _fileno( stdout ), _O_BINARY );
#endif
/* we cheat on the WAV header; we just bypass the header and never
verify that it matches 16bit/stereo/44.1kHz. This is just an
example, after all. */
readbuffer[0] = '\0';
for (i=0, founddata=0; i<30 && ! feof(stdin) && ! ferror(stdin); i++)
{
fread(readbuffer,1,2,stdin);
if ( ! strncmp((char*)readbuffer, "da", 2) )
{
founddata = 1;
fread(readbuffer,1,6,stdin);
break;
}
}
/********** Encode setup ************/
vorbis_info_init(&vi);
/* choose an encoding mode. A few possibilities commented out, one
actually used: */
/*********************************************************************
Encoding using a VBR quality mode. The usable range is -.1
(lowest quality, smallest file) to 1. (highest quality, largest file).
Example quality mode .4: 44kHz stereo coupled, roughly 128kbps VBR
ret = vorbis_encode_init_vbr(&vi,2,44100,.4);
---------------------------------------------------------------------
Encoding using an average bitrate mode (ABR).
example: 44kHz stereo coupled, average 128kbps VBR
ret = vorbis_encode_init(&vi,2,44100,-1,128000,-1);
---------------------------------------------------------------------
Encode using a quality mode, but select that quality mode by asking for
an approximate bitrate. This is not ABR, it is true VBR, but selected
using the bitrate interface, and then turning bitrate management off:
ret = ( vorbis_encode_setup_managed(&vi,2,44100,-1,128000,-1) ||
vorbis_encode_ctl(&vi,OV_ECTL_RATEMANAGE2_SET,NULL) ||
vorbis_encode_setup_init(&vi));
*********************************************************************/
ret=vorbis_encode_init_vbr(&vi,2,44100,0.1);
/* do not continue if setup failed; this can happen if we ask for a
mode that libVorbis does not support (eg, too low a bitrate, etc,
will return 'OV_EIMPL') */
if(ret)exit(1);
/* add a comment */
vorbis_comment_init(&vc);
vorbis_comment_add_tag(&vc,"ENCODER","encoder_example.c");
/* set up the analysis state and auxiliary encoding storage */
vorbis_analysis_init(&vd,&vi);
vorbis_block_init(&vd,&vb);
/* set up our packet->stream encoder */
/* pick a random serial number; that way we can more likely build
chained streams just by concatenation */
srand(time(NULL));
ogg_stream_init(&os,rand());
/* Vorbis streams begin with three headers; the initial header (with
most of the codec setup parameters) which is mandated by the Ogg
bitstream spec. The second header holds any comment fields. The
third header holds the bitstream codebook. We merely need to
make the headers, then pass them to libvorbis one at a time;
libvorbis handles the additional Ogg bitstream constraints */
{
ogg_packet header;
ogg_packet header_comm;
ogg_packet header_code;
vorbis_analysis_headerout(&vd,&vc,&header,&header_comm,&header_code);
ogg_stream_packetin(&os,&header); /* automatically placed in its own
page */
ogg_stream_packetin(&os,&header_comm);
ogg_stream_packetin(&os,&header_code);
/* This ensures the actual
* audio data will start on a new page, as per spec
*/
while(!eos){
int result=ogg_stream_flush(&os,&og);
if(result==0)break;
fwrite(og.header,1,og.header_len,stdout);
fwrite(og.body,1,og.body_len,stdout);
}
}
while(!eos){
long i;
long bytes=fread(readbuffer,1,READ*4,stdin); /* stereo hardwired here */
if(bytes==0){
/* end of file. this can be done implicitly in the mainline,
but it's easier to see here in non-clever fashion.
Tell the library we're at end of stream so that it can handle
the last frame and mark end of stream in the output properly */
vorbis_analysis_wrote(&vd,0);
}else{
/* data to encode */
/* expose the buffer to submit data */
float **buffer=vorbis_analysis_buffer(&vd,READ);
/* uninterleave samples */
for(i=0;i<bytes/4;i++){
buffer[0][i]=((readbuffer[i*4+1]<<8)|
(0x00ff&(int)readbuffer[i*4]))/32768.f;
buffer[1][i]=((readbuffer[i*4+3]<<8)|
(0x00ff&(int)readbuffer[i*4+2]))/32768.f;
}
/* tell the library how much we actually submitted */
vorbis_analysis_wrote(&vd,i);
}
/* vorbis does some data preanalysis, then divvies up blocks for
more involved (potentially parallel) processing. Get a single
block for encoding now */
while(vorbis_analysis_blockout(&vd,&vb)==1){
/* analysis, assume we want to use bitrate management */
vorbis_analysis(&vb,NULL);
vorbis_bitrate_addblock(&vb);
while(vorbis_bitrate_flushpacket(&vd,&op)){
/* weld the packet into the bitstream */
ogg_stream_packetin(&os,&op);
/* write out pages (if any) */
while(!eos){
int result=ogg_stream_pageout(&os,&og);
if(result==0)break;
fwrite(og.header,1,og.header_len,stdout);
fwrite(og.body,1,og.body_len,stdout);
/* this could be set above, but for illustrative purposes, I do
it here (to show that vorbis does know where the stream ends) */
if(ogg_page_eos(&og))eos=1;
}
}
}
}
/* clean up and exit. vorbis_info_clear() must be called last */
ogg_stream_clear(&os);
vorbis_block_clear(&vb);
vorbis_dsp_clear(&vd);
vorbis_comment_clear(&vc);
vorbis_info_clear(&vi);
/* ogg_page and ogg_packet structs always point to storage in
libvorbis. They're never freed or manipulated directly */
fprintf(stderr,"Done.\n");
return(0);
}
static SCM open_vorbis_stream(SCM server, SCM port, SCM password,
SCM mount, SCM config) {
SCM smob;
double qual;
char stream_name[32];
VORBIS_STREAM *stream;
stream = (VORBIS_STREAM *)my_gc_malloc(sizeof(VORBIS_STREAM),
"vorbis_stream", "vorbis stream");
stream->header.shutdown = vorbis_shutdown;
vorbis_info_init(&(stream->vi));
SCM quality = get_property(config, "quality");
if (scm_is_number(quality)) qual = scm_to_double(quality);
else qual = 0.6;
scm_remember_upto_here_1(quality);
stream->header.shoutbuf = NULL;
stream->header.shoutbuf_size = 0;
stream->header.rb_size = sizeof(sample_t) * RB_SECS * sampling_rate
* QMX_CHANNELS + 0.5;
stream->header.ringbuf = jack_ringbuffer_create(stream->header.rb_size);
if (vorbis_encode_init_vbr(&(stream->vi), QMX_CHANNELS,
sampling_rate, qual) != 0) {
log_msg("vorbis init failed\n");
return SCM_BOOL_F;
}
if ((stream->header.shout = shout_new()) == NULL) {
log_msg("can't create shout instance\n");
return SCM_BOOL_F;
}
vorbis_analysis_init(&(stream->vd), &(stream->vi));
vorbis_block_init(&(stream->vd), &(stream->vb));
ogg_stream_init(&(stream->os), rand());
vorbis_comment_init(&(stream->vc));
vorbis_comment_add_tag(&(stream->vc), "ENCODER", "QMX");
shout_set_protocol(stream->header.shout, SHOUT_PROTOCOL_HTTP);
shout_set_format(stream->header.shout, SHOUT_FORMAT_OGG);
char *server_s = scm_to_locale_string(server); // server
shout_set_host(stream->header.shout, server_s);
free(server_s);
shout_set_port(stream->header.shout, scm_to_int(port)); // port
shout_set_user(stream->header.shout, "source"); // user
char *password_s = scm_to_locale_string(password); // password
shout_set_password(stream->header.shout, password_s);
free(password_s);
char *mount_s = scm_to_locale_string(mount); // mount pt
shout_set_mount(stream->header.shout, mount_s);
SCM title = get_property(config, "title");
if (scm_is_string(title)) {
char *title_s = scm_to_locale_string(title);
if (strlen(title_s) > 0)
vorbis_comment_add_tag(&(stream->vc), "TITLE", title_s);
free(title_s);
}
scm_remember_upto_here_1(title);
SCM name = get_property(config, "name");
stream_name[0] = '\0';
if (scm_is_string(name)) {
char *name_s = scm_to_locale_string(name);
shout_set_name(stream->header.shout, name_s);
snprintf(stream_name, sizeof(stream_name), "'%s' ", name_s);
free(name_s);
}
scm_remember_upto_here_1(name);
SCM description = get_property(config, "description");
if (scm_is_string(description)) {
char *description_s = scm_to_locale_string(description);
shout_set_description(stream->header.shout, description_s);
free(description_s);
}
scm_remember_upto_here_1(description);
SCM genre = get_property(config, "genre");
if (scm_is_string(genre)) {
char *genre_s = scm_to_locale_string(genre);
shout_set_genre(stream->header.shout, genre_s);
free(genre_s);
}
scm_remember_upto_here_1(genre);
shout_set_audio_info(stream->header.shout,
SHOUT_AI_CHANNELS, encode_int(QMX_CHANNELS));
shout_set_audio_info(stream->header.shout,
SHOUT_AI_SAMPLERATE, encode_int(sampling_rate));
if (shout_open(stream->header.shout) == SHOUTERR_SUCCESS) {
log_msg("vorbis stream %smounted at %s\n", stream_name, mount_s);
free(mount_s);
}
else {
log_msg("vorbis stream %sfailed to open: %s\n", stream_name,
shout_get_error(stream->header.shout));
free(mount_s);
shout_free(stream->header.shout);
return SCM_BOOL_F;
}
vorbis_streams += 1;
stream->header.eos = 0;
SCM_NEWSMOB(smob, vorbis_stream_tag, stream);
streams = link_in(streams, smob);
stream->header.do_prep = need_prepper;
need_prepper = 0;
stream->header.bookmark = 0;
add_outbuf_client(load_frames, process_frames, (void *)stream,
"Ogg-Vorbis stream");
spawn_detached_thread(shout_thread, (void *)&(stream->header));
scm_remember_upto_here_1(smob);
return smob;
}
bool ExportOGG(AudacityProject *project,
bool stereo, wxString fName,
bool selectionOnly, double t0, double t1)
{
double rate = project->GetRate();
wxWindow *parent = project;
TrackList *tracks = project->GetTracks();
double quality = (gPrefs->Read("/FileFormats/OggExportQuality", 50)/(float)100.0);
wxLogNull logNo; // temporarily disable wxWindows error messages
bool cancelling = false;
wxFFile outFile(fName, "wb");
if(!outFile.IsOpened()) {
wxMessageBox(_("Unable to open target file for writing"));
return false;
}
// All the Ogg and Vorbis encoding data
ogg_stream_state stream;
ogg_page page;
ogg_packet packet;
vorbis_info info;
vorbis_comment comment;
vorbis_dsp_state dsp;
vorbis_block block;
// Encoding setup
vorbis_info_init(&info);
vorbis_encode_init_vbr(&info, stereo ? 2 : 1, int(rate + 0.5), quality);
vorbis_comment_init(&comment);
// If we wanted to add comments, we would do it here
// Set up analysis state and auxiliary encoding storage
vorbis_analysis_init(&dsp, &info);
vorbis_block_init(&dsp, &block);
// Set up packet->stream encoder. According to encoder example,
// a random serial number makes it more likely that you can make
// chained streams with concatenation.
srand(time(NULL));
ogg_stream_init(&stream, rand());
// First we need to write the required headers:
// 1. The Ogg bitstream header, which contains codec setup params
// 2. The Vorbis comment header
// 3. The bitstream codebook.
//
// After we create those our responsibility is complete, libvorbis will
// take care of any other ogg bistream constraints (again, according
// to the example encoder source)
ogg_packet bitstream_header;
ogg_packet comment_header;
ogg_packet codebook_header;
vorbis_analysis_headerout(&dsp, &comment, &bitstream_header, &comment_header,
&codebook_header);
// Place these headers into the stream
ogg_stream_packetin(&stream, &bitstream_header);
ogg_stream_packetin(&stream, &comment_header);
ogg_stream_packetin(&stream, &codebook_header);
// Flushing these headers now guarentees that audio data will
// start on a new page, which apparently makes streaming easier
ogg_stream_flush(&stream, &page);
outFile.Write(page.header, page.header_len);
outFile.Write(page.body, page.body_len);
double t = t0;
bool done = false;
wxProgressDialog *progress = NULL;
wxYield();
wxStartTimer();
while(!done && !cancelling){
float deltat = (float)SAMPLES_PER_RUN / rate;
sampleCount samplesThisRun = SAMPLES_PER_RUN;
Mixer *mixer = new Mixer(stereo ? 2 : 1, SAMPLES_PER_RUN,
/* interleaved = */ false, rate, floatSample);
if(t + deltat > t1) {
done = true;
deltat = t1 - t;
samplesThisRun = int(deltat * rate + 0.5);
}
mixer->Clear();
TrackListIterator iter(tracks);
Track *tr = iter.First();
while (tr) {
if (tr->GetKind() == Track::Wave) {
if (tr->GetSelected() || !selectionOnly) {
if (tr->GetChannel() == Track::MonoChannel)
mixer->MixMono((WaveTrack *) tr, t, t + deltat);
else if (tr->GetChannel() == Track::LeftChannel)
mixer->MixLeft((WaveTrack *) tr, t, t + deltat);
else if (tr->GetChannel() == Track::RightChannel)
mixer->MixRight((WaveTrack *) tr, t, t + deltat);
}
}
tr = iter.Next();
}
float **vorbis_buffer = vorbis_analysis_buffer(&dsp, SAMPLES_PER_RUN);
float *left = (float *)mixer->GetBuffer(0);
memcpy(vorbis_buffer[0], left, sizeof(float)*SAMPLES_PER_RUN);
if(stereo) {
float *right = (float *)mixer->GetBuffer(1);
memcpy(vorbis_buffer[1], right, sizeof(float)*SAMPLES_PER_RUN);
}
// tell the encoder how many samples we have
vorbis_analysis_wrote(&dsp, samplesThisRun);
// I don't understand what this call does, so here is the comment
// from the example, verbatim:
//
// vorbis does some data preanalysis, then divvies up blocks
// for more involved (potentially parallel) processing. Get
// a single block for encoding now
while(vorbis_analysis_blockout(&dsp, &block) == 1) {
// analysis, assume we want to use bitrate management
vorbis_analysis(&block, NULL);
vorbis_bitrate_addblock(&block);
while(vorbis_bitrate_flushpacket(&dsp, &packet)) {
// add the packet to the bitstream
ogg_stream_packetin(&stream, &packet);
int result = ogg_stream_pageout(&stream, &page);
if(result != 0) {
outFile.Write(page.header, page.header_len);
outFile.Write(page.body, page.body_len);
}
}
}
if(progress)
cancelling = !progress->Update(int (((t - t0) * 1000) / (t1 - t0) + 0.5));
else if(wxGetElapsedTime(false) > 500) {
wxString message = selectionOnly ?
_("Exporting the selected audio as Ogg Vorbis") :
_("Exporting the entire project as Ogg Vorbis");
progress = new wxProgressDialog(
_("Export"),
message,
1000,
parent,
wxPD_CAN_ABORT | wxPD_REMAINING_TIME | wxPD_AUTO_HIDE);
}
delete mixer;
t += deltat;
}
outFile.Close();
if(progress)
delete progress;
return true;
}
/*------------------------------------------------------------------------------
* Open an encoding session
*----------------------------------------------------------------------------*/
bool
VorbisLibEncoder :: open ( void )
throw ( Exception )
{
int ret;
if ( isOpen() ) {
close();
}
vorbis_info_init( &vorbisInfo);
switch ( getOutBitrateMode() ) {
case cbr:
ret = vorbis_encode_setup_managed( &vorbisInfo,
getInChannel(),
getOutSampleRate(),
-1,
getOutBitrate() * 1000,
-1)
|| vorbis_encode_ctl( &vorbisInfo, OV_ECTL_RATEMANAGE_AVG, NULL)
|| vorbis_encode_setup_init( &vorbisInfo);
if ( ret ) {
throw Exception( __FILE__, __LINE__,
"vorbis encode init error", ret);
}
break;
case abr:
if ( (ret = vorbis_encode_init( &vorbisInfo,
getInChannel(),
getOutSampleRate(),
-1,
getOutBitrate() * 1000,
-1 )) ) {
throw Exception( __FILE__, __LINE__,
"vorbis encode init error", ret);
}
break;
case vbr:
if ( (ret = vorbis_encode_init_vbr( &vorbisInfo,
getInChannel(),
getOutSampleRate(),
getOutQuality() )) ) {
throw Exception( __FILE__, __LINE__,
"vorbis encode init error", ret);
}
break;
}
if ( (ret = vorbis_analysis_init( &vorbisDspState, &vorbisInfo)) ) {
throw Exception( __FILE__, __LINE__, "vorbis analysis init error", ret);
}
if ( (ret = vorbis_block_init( &vorbisDspState, &vorbisBlock)) ) {
throw Exception( __FILE__, __LINE__, "vorbis block init error", ret);
}
if ( (ret = ogg_stream_init( &oggStreamState, 0)) ) {
throw Exception( __FILE__, __LINE__, "ogg stream init error", ret);
}
// open the underlying sink
if ( !sink->open() ) {
throw Exception( __FILE__, __LINE__,
"vorbis lib opening underlying sink error");
}
// create an empty vorbis_comment structure
vorbis_comment_init( &vorbisComment);
// create the vorbis stream headers and send them to the underlying sink
ogg_packet header;
ogg_packet commentHeader;
ogg_packet codeHeader;
if ( (ret = vorbis_analysis_headerout( &vorbisDspState,
&vorbisComment,
&header,
&commentHeader,
&codeHeader )) ) {
throw Exception( __FILE__, __LINE__, "vorbis header init error", ret);
}
ogg_stream_packetin( &oggStreamState, &header);
ogg_stream_packetin( &oggStreamState, &commentHeader);
ogg_stream_packetin( &oggStreamState, &codeHeader);
ogg_page oggPage;
while ( ogg_stream_flush( &oggStreamState, &oggPage) ) {
sink->write( oggPage.header, oggPage.header_len);
sink->write( oggPage.body, oggPage.body_len);
}
vorbis_comment_clear( &vorbisComment );
// initialize the resampling coverter if needed
if ( converter ) {
converter->initialize( resampleRatio, getInChannel());
}
encoderOpen = true;
return true;
}
S32 encode_vorbis_file(const std::string& in_fname, const std::string& out_fname)
{
#define READ_BUFFER 1024
unsigned char readbuffer[READ_BUFFER*4+44]; /* out of the data segment, not the stack */ /*Flawfinder: ignore*/
ogg_stream_state os; /* take physical pages, weld into a logical stream of packets */
ogg_page og; /* one Ogg bitstream page. Vorbis packets are inside */
ogg_packet op; /* one raw packet of data for decode */
vorbis_info vi; /* struct that stores all the static vorbis bitstream settings */
vorbis_comment vc; /* struct that stores all the user comments */
vorbis_dsp_state vd; /* central working state for the packet->PCM decoder */
vorbis_block vb; /* local working space for packet->PCM decode */
int eos=0;
int result;
U16 num_channels = 0;
U32 sample_rate = 0;
U32 bits_per_sample = 0;
S32 format_error = 0;
std::string error_msg;
if ((format_error = check_for_invalid_wav_formats(in_fname, error_msg)))
{
llwarns << error_msg << ": " << in_fname << llendl;
return(format_error);
}
#if 1
unsigned char wav_header[44]; /*Flawfinder: ignore*/
S32 data_left = 0;
LLAPRFile infile ;
infile.open(in_fname,LL_APR_RB, LLAPRFile::global);
if (!infile.getFileHandle())
{
llwarns << "Couldn't open temporary ogg file for writing: " << in_fname
<< llendl;
return(LLVORBISENC_SOURCE_OPEN_ERR);
}
LLAPRFile outfile ;
outfile.open(out_fname,LL_APR_WPB, LLAPRFile::global);
if (!outfile.getFileHandle())
{
llwarns << "Couldn't open upload sound file for reading: " << in_fname
<< llendl;
return(LLVORBISENC_DEST_OPEN_ERR);
}
// parse the chunks
U32 chunk_length = 0;
U32 file_pos = 12; // start at the first chunk (usually fmt but not always)
while (infile.eof() != APR_EOF)
{
infile.seek(APR_SET,file_pos);
infile.read(wav_header, 44);
chunk_length = ((U32) wav_header[7] << 24)
+ ((U32) wav_header[6] << 16)
+ ((U32) wav_header[5] << 8)
+ wav_header[4];
// llinfos << "chunk found: '" << wav_header[0] << wav_header[1] << wav_header[2] << wav_header[3] << "'" << llendl;
if (!(strncmp((char *)&(wav_header[0]),"fmt ",4)))
{
num_channels = ((U16) wav_header[11] << 8) + wav_header[10];
sample_rate = ((U32) wav_header[15] << 24)
+ ((U32) wav_header[14] << 16)
+ ((U32) wav_header[13] << 8)
+ wav_header[12];
bits_per_sample = ((U16) wav_header[23] << 8) + wav_header[22];
}
else if (!(strncmp((char *)&(wav_header[0]),"data",4)))
{
infile.seek(APR_SET,file_pos+8);
// leave the file pointer at the beginning of the data chunk data
data_left = chunk_length;
break;
}
file_pos += (chunk_length + 8);
chunk_length = 0;
}
/********** Encode setup ************/
/* choose an encoding mode */
/* (mode 0: 44kHz stereo uncoupled, roughly 128kbps VBR) */
vorbis_info_init(&vi);
// always encode to mono
// SL-52913 & SL-53779 determined this quality level to be our 'good
// enough' general-purpose quality level with a nice low bitrate.
// Equivalent to oggenc -q0.5
F32 quality = 0.05f;
// quality = (bitrate==128000 ? 0.4f : 0.1);
// if (vorbis_encode_init(&vi, /* num_channels */ 1 ,sample_rate, -1, bitrate, -1))
if (vorbis_encode_init_vbr(&vi, /* num_channels */ 1 ,sample_rate, quality))
// if (vorbis_encode_setup_managed(&vi,1,sample_rate,-1,bitrate,-1) ||
// vorbis_encode_ctl(&vi,OV_ECTL_RATEMANAGE_AVG,NULL) ||
// vorbis_encode_setup_init(&vi))
{
llwarns << "unable to initialize vorbis codec at quality " << quality << llendl;
// llwarns << "unable to initialize vorbis codec at bitrate " << bitrate << llendl;
return(LLVORBISENC_DEST_OPEN_ERR);
}
/* add a comment */
vorbis_comment_init(&vc);
// vorbis_comment_add(&vc,"Linden");
/* set up the analysis state and auxiliary encoding storage */
vorbis_analysis_init(&vd,&vi);
vorbis_block_init(&vd,&vb);
/* set up our packet->stream encoder */
/* pick a random serial number; that way we can more likely build
chained streams just by concatenation */
ogg_stream_init(&os, ll_rand());
/* Vorbis streams begin with three headers; the initial header (with
most of the codec setup parameters) which is mandated by the Ogg
bitstream spec. The second header holds any comment fields. The
third header holds the bitstream codebook. We merely need to
make the headers, then pass them to libvorbis one at a time;
libvorbis handles the additional Ogg bitstream constraints */
{
ogg_packet header;
ogg_packet header_comm;
ogg_packet header_code;
vorbis_analysis_headerout(&vd,&vc,&header,&header_comm,&header_code);
ogg_stream_packetin(&os,&header); /* automatically placed in its own
page */
ogg_stream_packetin(&os,&header_comm);
ogg_stream_packetin(&os,&header_code);
/* We don't have to write out here, but doing so makes streaming
* much easier, so we do, flushing ALL pages. This ensures the actual
* audio data will start on a new page
*/
while(!eos){
int result=ogg_stream_flush(&os,&og);
if(result==0)break;
outfile.write(og.header, og.header_len);
outfile.write(og.body, og.body_len);
}
}
while(!eos)
{
long bytes_per_sample = bits_per_sample/8;
long bytes=(long)infile.read(readbuffer,llclamp((S32)(READ_BUFFER*num_channels*bytes_per_sample),0,data_left)); /* stereo hardwired here */
if (bytes==0)
{
/* end of file. this can be done implicitly in the mainline,
but it's easier to see here in non-clever fashion.
Tell the library we're at end of stream so that it can handle
the last frame and mark end of stream in the output properly */
vorbis_analysis_wrote(&vd,0);
// eos = 1;
}
else
{
long i;
long samples;
int temp;
data_left -= bytes;
/* data to encode */
/* expose the buffer to submit data */
float **buffer=vorbis_analysis_buffer(&vd,READ_BUFFER);
i = 0;
samples = bytes / (num_channels * bytes_per_sample);
if (num_channels == 2)
{
if (bytes_per_sample == 2)
{
/* uninterleave samples */
for(i=0; i<samples ;i++)
{
temp = ((signed char *)readbuffer)[i*4+1]; /*Flawfinder: ignore*/
temp += ((signed char *)readbuffer)[i*4+3]; /*Flawfinder: ignore*/
temp <<= 8;
temp += readbuffer[i*4];
temp += readbuffer[i*4+2];
buffer[0][i] = ((float)temp) / 65536.f;
}
}
else // presume it's 1 byte per which is unsigned (F#@%ing wav "standard")
{
/* uninterleave samples */
for(i=0; i<samples ;i++)
{
temp = readbuffer[i*2+0];
temp += readbuffer[i*2+1];
temp -= 256;
buffer[0][i] = ((float)temp) / 256.f;
}
}
}
else if (num_channels == 1)
{
if (bytes_per_sample == 2)
{
for(i=0; i < samples ;i++)
{
temp = ((signed char*)readbuffer)[i*2+1];
temp <<= 8;
temp += readbuffer[i*2];
buffer[0][i] = ((float)temp) / 32768.f;
}
}
else // presume it's 1 byte per which is unsigned (F#@%ing wav "standard")
{
for(i=0; i < samples ;i++)
{
temp = readbuffer[i];
temp -= 128;
buffer[0][i] = ((float)temp) / 128.f;
}
}
}
/* tell the library how much we actually submitted */
vorbis_analysis_wrote(&vd,i);
}
/* vorbis does some data preanalysis, then divvies up blocks for
more involved (potentially parallel) processing. Get a single
block for encoding now */
while(vorbis_analysis_blockout(&vd,&vb)==1)
{
/* analysis */
/* Do the main analysis, creating a packet */
vorbis_analysis(&vb, NULL);
vorbis_bitrate_addblock(&vb);
while(vorbis_bitrate_flushpacket(&vd, &op))
{
/* weld the packet into the bitstream */
ogg_stream_packetin(&os,&op);
/* write out pages (if any) */
while(!eos)
{
result = ogg_stream_pageout(&os,&og);
if(result==0)
break;
outfile.write(og.header, og.header_len);
outfile.write(og.body, og.body_len);
/* this could be set above, but for illustrative purposes, I do
it here (to show that vorbis does know where the stream ends) */
if(ogg_page_eos(&og))
eos=1;
}
}
}
}
/* clean up and exit. vorbis_info_clear() must be called last */
ogg_stream_clear(&os);
vorbis_block_clear(&vb);
vorbis_dsp_clear(&vd);
vorbis_comment_clear(&vc);
vorbis_info_clear(&vi);
/* ogg_page and ogg_packet structs always point to storage in
libvorbis. They're never freed or manipulated directly */
// fprintf(stderr,"Vorbis encoding: Done.\n");
llinfos << "Vorbis encoding: Done." << llendl;
#endif
return(LLVORBISENC_NOERR);
}
//Method to start encoding
int startEncoding(JNIEnv *env, jclass *cls_ptr, jlong *sampleRate_ptr, jlong *channels_ptr, jfloat *quality_ptr, jlong *bitrate_ptr, jobject *encoderDataFeed_ptr, int type) {
//Dereference our variables
jclass cls = (*cls_ptr);
jlong sampleRate = (*sampleRate_ptr);
jlong channels = (*channels_ptr);
jfloat quality = (*quality_ptr);
jlong bitrate = (*bitrate_ptr);
jobject encoderDataFeed = (*encoderDataFeed_ptr);
//Create our PCM data buffer
signed char readbuffer[READ*4+44];
//Create a new java byte array to pass to the data feed method
jbyteArray jByteArrayBuffer = (*env)->NewByteArray(env, READ*4);
//Create a new java byte buffer to write to
jbyteArray jByteArrayWriteBuffer = (*env)->NewByteArray(env, READ*8);
//Find our java classes we'll be calling
jclass encoderDataFeedClass = (*env)->FindClass(env, "org/xiph/vorbis/encoder/EncodeFeed");
//Find our java method id's we'll be calling
jmethodID writeVorbisDataMethodId = (*env)->GetMethodID(env, encoderDataFeedClass, "writeVorbisData", "([BI)I");
jmethodID readPCMDataMethodId = (*env)->GetMethodID(env, encoderDataFeedClass, "readPCMData", "([BI)J");
jmethodID startMethodId = (*env)->GetMethodID(env, encoderDataFeedClass, "start", "()V");
jmethodID stopMethodId = (*env)->GetMethodID(env, encoderDataFeedClass, "stop", "()V");
ogg_stream_state os; /* take physical pages, weld into a logical
stream of packets */
ogg_page og; /* one Ogg bitstream page. Vorbis packets are inside */
ogg_packet op; /* one raw packet of data for decode */
vorbis_info vi; /* struct that stores all the static vorbis bitstream
settings */
vorbis_comment vc; /* struct that stores all the user comments */
vorbis_dsp_state vd; /* central working state for the packet->PCM decoder */
vorbis_block vb; /* local working space for packet->PCM decode */
int eos=0,ret;
int i, founddata;
/********** Encode setup ************/
__android_log_print(ANDROID_LOG_INFO, "VorbisEncoder", "Setting up encoding");
vorbis_info_init(&vi);
/* choose an encoding mode. A few possibilities commented out, one
actually used: */
/*********************************************************************
Encoding using a VBR quality mode. The usable range is -.1
(lowest quality, smallest file) to 1. (highest quality, largest file).
Example quality mode .4: 44kHz stereo coupled, roughly 128kbps VBR
ret = vorbis_encode_init_vbr(&vi,2,44100,.4);
---------------------------------------------------------------------
Encoding using an average bitrate mode (ABR).
example: 44kHz stereo coupled, average 128kbps VBR
ret = vorbis_encode_init(&vi,2,44100,-1,128000,-1);
---------------------------------------------------------------------
Encode using a quality mode, but select that quality mode by asking for
an approximate bitrate. This is not ABR, it is true VBR, but selected
using the bitrate interface, and then turning bitrate management off:
ret = ( vorbis_encode_setup_managed(&vi,2,44100,-1,128000,-1) ||
vorbis_encode_ctl(&vi,OV_ECTL_RATEMANAGE2_SET,NULL) ||
vorbis_encode_setup_init(&vi));
*********************************************************************/
switch(type) {
case WITH_BITRATE:
__android_log_print(ANDROID_LOG_INFO, "VorbisEncoder", "Initializing with %lld channels %lldHz sample rate and %lld bitrate", channels, sampleRate, bitrate);
ret=vorbis_encode_init(&vi, (long)channels, (long)sampleRate, (long)-1, (long)bitrate, (long)-1);
break;
case WITH_QUALITY:
__android_log_print(ANDROID_LOG_INFO, "VorbisEncoder", "Initializing with %lld channels %lldHz sample rate and %f quality", channels, sampleRate, quality);
ret=vorbis_encode_init_vbr(&vi, (long)channels, (long)sampleRate, (float)quality);
break;
default:
__android_log_print(ANDROID_LOG_ERROR, "VorbisEncoder", "Failed to initialize");
stopEncodeFeed(env, &encoderDataFeed, &stopMethodId);
return ERROR_INITIALIZING;
}
/* do not continue if setup failed; this can happen if we ask for a
mode that libVorbis does not support (eg, too low a bitrate, etc,
will return 'OV_EIMPL') */
if(ret) {
__android_log_print(ANDROID_LOG_ERROR, "VorbisEncoder", "Failed to initialize");
stopEncodeFeed(env, &encoderDataFeed, &stopMethodId);
return ERROR_INITIALIZING;
}
startEncodeFeed(env, &encoderDataFeed, &startMethodId);
/* add a comment */
__android_log_print(ANDROID_LOG_DEBUG, "VorbisEncoder", "Adding comments");
vorbis_comment_init(&vc);
vorbis_comment_add_tag(&vc,"ENCODER","JNIVorbisEncoder");
/* set up the analysis state and auxiliary encoding storage */
vorbis_analysis_init(&vd,&vi);
vorbis_block_init(&vd,&vb);
/* set up our packet->stream encoder */
/* pick a random serial number; that way we can more likely build
chained streams just by concatenation */
srand(time(NULL));
ogg_stream_init(&os,rand());
/* Vorbis streams begin with three headers; the initial header (with
most of the codec setup parameters) which is mandated by the Ogg
bitstream spec. The second header holds any comment fields. The
third header holds the bitstream codebook. We merely need to
make the headers, then pass them to libvorbis one at a time;
libvorbis handles the additional Ogg bitstream constraints */
{
ogg_packet header;
ogg_packet header_comm;
ogg_packet header_code;
vorbis_analysis_headerout(&vd,&vc,&header,&header_comm,&header_code);
ogg_stream_packetin(&os,&header); /* automatically placed in its own
page */
ogg_stream_packetin(&os,&header_comm);
ogg_stream_packetin(&os,&header_code);
/* This ensures the actual
* audio data will start on a new page, as per spec
*/
__android_log_print(ANDROID_LOG_INFO, "VorbisEncoder", "Writting header");
while(!eos){
int result=ogg_stream_flush(&os,&og);
if(result==0)break;
writeVorbisDataToEncoderDataFeed(env, &encoderDataFeed, &writeVorbisDataMethodId, og.header, og.header_len, &jByteArrayWriteBuffer);
writeVorbisDataToEncoderDataFeed(env, &encoderDataFeed, &writeVorbisDataMethodId, og.body, og.body_len, &jByteArrayWriteBuffer);
}
}
__android_log_print(ANDROID_LOG_INFO, "VorbisEncoder", "Starting to read from pcm callback");
while(!eos){
long i;
long bytes = readPCMDataFromEncoderDataFeed(env, &encoderDataFeed, &readPCMDataMethodId, readbuffer, READ*4, &jByteArrayBuffer);
if(bytes==0){
/* end of file. this can be done implicitly in the mainline,
but it's easier to see here in non-clever fashion.
Tell the library we're at end of stream so that it can handle
the last frame and mark end of stream in the output properly */
__android_log_print(ANDROID_LOG_INFO, "VorbisEncoder", "End of file");
vorbis_analysis_wrote(&vd,0);
}else{
/* data to encode */
/* expose the buffer to submit data */
float **buffer=vorbis_analysis_buffer(&vd,bytes/(2*channels));
/* uninterleave samples */
int channel;
for(i=0;i<bytes/(2*channels);i++) {
for(channel = 0; channel < channels; channel++) {
buffer[channel][i]=((readbuffer[i*(2*channels)+(channel*2+1)]<<8)|
(0x00ff&(int)readbuffer[i*(2*channels)+(channel*2)]))/32768.f;
}
}
/* tell the library how much we actually submitted */
vorbis_analysis_wrote(&vd,i);
}
/* vorbis does some data preanalysis, then divvies up blocks for
more involved (potentially parallel) processing. Get a single
block for encoding now */
while(vorbis_analysis_blockout(&vd,&vb)==1){
/* analysis, assume we want to use bitrate management */
vorbis_analysis(&vb,NULL);
vorbis_bitrate_addblock(&vb);
while(vorbis_bitrate_flushpacket(&vd,&op)){
/* weld the packet into the bitstream */
ogg_stream_packetin(&os,&op);
/* write out pages (if any) */
while(!eos){
int result=ogg_stream_pageout(&os,&og);
if(result==0)break;
writeVorbisDataToEncoderDataFeed(env, &encoderDataFeed, &writeVorbisDataMethodId, og.header, og.header_len, &jByteArrayWriteBuffer);
writeVorbisDataToEncoderDataFeed(env, &encoderDataFeed, &writeVorbisDataMethodId, og.body, og.body_len, &jByteArrayWriteBuffer);
/* this could be set above, but for illustrative purposes, I do
it here (to show that vorbis does know where the stream ends) */
if(ogg_page_eos(&og))eos=1;
}
}
}
}
/* clean up and exit. vorbis_info_clear() must be called last */
__android_log_print(ANDROID_LOG_INFO, "VorbisEncoder", "Cleaning up encoder");
ogg_stream_clear(&os);
vorbis_block_clear(&vb);
vorbis_dsp_clear(&vd);
vorbis_comment_clear(&vc);
vorbis_info_clear(&vi);
/* ogg_page and ogg_packet structs always point to storage in
libvorbis. They're never freed or manipulated directly */
__android_log_print(ANDROID_LOG_INFO, "VorbisEncoder", "Completed encoding.");
stopEncodeFeed(env, &encoderDataFeed, &stopMethodId);
//Clean up encode buffers
(*env)->DeleteLocalRef(env, jByteArrayBuffer);
(*env)->DeleteLocalRef(env, jByteArrayWriteBuffer);
return SUCCESS;
}
static LONG APIENTRY IOProc_Entry2(PVOID pmmioStr, USHORT usMsg, LONG lParam1,
LONG lParam2) {
PMMIOINFO pmmioinfo = (PMMIOINFO)pmmioStr;
switch (usMsg) {
case MMIOM_OPEN:
{
HMMIO hmmioSS;
MMIOINFO mmioinfoSS;
PSZ pszFileName = (char *)lParam1;
if (!pmmioinfo) return MMIO_ERROR;
if ((pmmioinfo->ulFlags & MMIO_READWRITE)) {
#ifdef DEBUG
fprintf(file,"ReadWrite - requested.\n");
#endif
return MMIO_ERROR;
}
if (!(pmmioinfo->ulTranslate & MMIO_TRANSLATEHEADER) &&
!(pmmioinfo->ulTranslate & MMIO_TRANSLATEDATA)) return MMIO_ERROR;
if (!pmmioinfo->fccChildIOProc) {
FOURCC fccFileStorageSystem;
if (pmmioinfo->ulFlags & MMIO_CREATE) {
if (mmioDetermineSSIOProc(pszFileName, pmmioinfo, &fccFileStorageSystem, NULL)) {
fccFileStorageSystem = FOURCC_DOS;
}
} else {
if (mmioIdentifyStorageSystem(pszFileName, pmmioinfo, &fccFileStorageSystem)) {
return MMIO_ERROR;
}
}
if (!fccFileStorageSystem) {
return MMIO_ERROR;
} else {
pmmioinfo->fccChildIOProc = fccFileStorageSystem;
} /* endif */
}
memmove(&mmioinfoSS, pmmioinfo, sizeof(MMIOINFO));
mmioinfoSS.pIOProc = NULL;
mmioinfoSS.fccIOProc = pmmioinfo->fccChildIOProc;
mmioinfoSS.ulFlags |= MMIO_NOIDENTIFY;
hmmioSS = mmioOpen (pszFileName, &mmioinfoSS, mmioinfoSS.ulFlags);
if (pmmioinfo->ulFlags & MMIO_DELETE) {
if (!hmmioSS) {
pmmioinfo->ulErrorRet = MMIOERR_DELETE_FAILED;
return MMIO_ERROR;
}
else return MMIO_SUCCESS;
}
if (!hmmioSS) return MMIO_ERROR;
if (pmmioinfo->ulFlags & MMIO_READ) {
DecInfo *decInfo = (DecInfo *)malloc(sizeof(DecInfo));
#ifdef DEBUG
fprintf(file,"File Read: %s\n",pszFileName);
#endif
if (!decInfo) {
mmioClose(hmmioSS, 0);
return MMIO_ERROR;
}
decInfo->t = READNUM;
decInfo->vorbisOptions = pmmioinfo->pExtraInfoStruct;
pmmioinfo->pExtraInfoStruct = (PVOID)decInfo;
{
ov_callbacks cb;
cb.read_func = mread;
cb.seek_func = mseek;
cb.close_func = mclose;
cb.tell_func = mtell;
if(0 != ov_open_callbacks((void *)hmmioSS, &decInfo->oggfile, 0, 0, cb)) {
free(decInfo);
mmioClose(hmmioSS, 0);
return MMIO_ERROR;
}
}
#ifdef DEBUG
fprintf(file,"Open successfull\n");
#endif
return MMIO_SUCCESS;
} else if (pmmioinfo->ulFlags & MMIO_WRITE) {
EncInfo *encInfo = (EncInfo *)malloc(sizeof(EncInfo));
#ifdef DEBUG
fprintf(file,"File Write: %s\n",pszFileName);
#endif
if (!encInfo) {
mmioClose(hmmioSS, 0);
return MMIO_ERROR;
}
memset(encInfo, 0, sizeof(EncInfo));
encInfo->t = WRITENUM;
encInfo->hmmioSS = hmmioSS;
encInfo->vorbisOptions = (PVORBISOPTIONS)pmmioinfo->pExtraInfoStruct;
pmmioinfo->pExtraInfoStruct = (PVOID)encInfo;
return MMIO_SUCCESS;
}
#ifdef DEBUG
fprintf(file,"File not read nor write: %s\n",pszFileName);
#endif
return MMIO_ERROR;
}
break;
case MMIOM_READ: {
if (!pmmioinfo || !pmmioinfo->pExtraInfoStruct || !lParam1) return MMIO_ERROR;
if (!pmmioinfo->ulTranslate & MMIO_TRANSLATEDATA) {
return MMIO_ERROR;
// return mmioRead (ogginfo->hmmioSS, (PVOID) lParam1, (ULONG) lParam2);
} else {
OggVorbis_File *oggfile;
long rc = 0;
int current_section;
long total = 0;
oggfile = &((DecInfo *)pmmioinfo->pExtraInfoStruct)->oggfile;
if (READNUM != ((DecInfo *)pmmioinfo->pExtraInfoStruct)->t) return MMIO_ERROR;
while (lParam2 > 0) {
rc = ov_read(oggfile, (char *)lParam1, (int)lParam2, 0, 2, 1, ¤t_section);
if (rc < 0) {
#ifdef DEBUG
fprintf(file, "Read failed once\n");
#endif
continue;
}
if (rc <= 0) break;
lParam2 -= rc;
lParam1 += rc;
total += rc;
}
#ifdef DEBUG
fprintf(file,"Read rc:%ld total:%ld\n",rc,total);
#endif
if (rc < 0) return MMIO_ERROR;
return total;
}
}
break;
case MMIOM_SEEK: {
LONG lPosDesired;
OggVorbis_File *oggfile;
vorbis_info *vi;
if (!pmmioinfo || !pmmioinfo->pExtraInfoStruct) return MMIO_ERROR;
if (!pmmioinfo->ulTranslate & MMIO_TRANSLATEDATA) return MMIO_ERROR;
oggfile = &((DecInfo *)pmmioinfo->pExtraInfoStruct)->oggfile;
if (READNUM != ((DecInfo *)pmmioinfo->pExtraInfoStruct)->t) return MMIO_ERROR;
vi = ov_info(oggfile, -1);
if (!vi) return MMIO_ERROR;
if (SEEK_SET == lParam2) {
lPosDesired = lParam1/(2*vi->channels);
} else if (SEEK_CUR == lParam2) {
if (0 == lParam1) {
return ov_pcm_tell(oggfile)*2*vi->channels;
} /* endif */
lPosDesired = ov_pcm_tell(oggfile) + lParam1/(2*vi->channels);
} else if (SEEK_END == lParam2) {
lPosDesired = ov_pcm_total(oggfile,-1) + lParam1/(2*vi->channels);
} else {
return MMIO_ERROR;
}
#ifdef DEBUG
fprintf(file,"Seek to %ld by %d\n",lPosDesired, lParam2);
#endif
if (ov_pcm_seek(oggfile, lPosDesired) < 0) return MMIO_ERROR;
return lPosDesired*2*vi->channels;
}
break;
case MMIOM_CLOSE: {
int rc;
#ifdef DEBUG
fprintf(file,"start CLOSE\n");
#endif
if (!pmmioinfo) return MMIO_ERROR;
if (pmmioinfo->pExtraInfoStruct) {
DecInfo *decInfo = (DecInfo *)pmmioinfo->pExtraInfoStruct;
#ifdef DEBUG
fprintf(file,"ready CLOSE\n");
#endif
if (READNUM == decInfo->t) {
#ifdef DEBUG
fprintf(file,"read CLOSE\n");
#endif
ov_clear(&decInfo->oggfile);
free(decInfo);
decInfo = 0;
rc=MMIO_SUCCESS;
} else if (WRITENUM == decInfo->t) {
EncInfo *encInfo = (EncInfo*)pmmioinfo->pExtraInfoStruct;
#ifdef DEBUG
fprintf(file,"write CLOSE\n");
#endif
if (encInfo->headerSet) {
vorbis_analysis_wrote(&encInfo->vd,0);
rc = oggWrite(encInfo,1);
ogg_stream_clear(&encInfo->os);
vorbis_block_clear(&encInfo->vb);
vorbis_dsp_clear(&encInfo->vd);
vorbis_comment_clear(&encInfo->vc);
vorbis_info_clear(&encInfo->vi);
}
mmioClose(encInfo->hmmioSS, 0);
free(encInfo);
encInfo = 0;
rc = MMIO_SUCCESS;
} else rc = MMIO_ERROR;
pmmioinfo->pExtraInfoStruct = 0;
#ifdef DEBUG
fprintf(file,"CLOSE\n");
#endif
return rc;
}
return MMIO_ERROR;
}
break;
case MMIOM_IDENTIFYFILE: {
unsigned char buf[4];
HMMIO hmmioTemp;
ULONG ulTempFlags = MMIO_READ | MMIO_DENYWRITE | MMIO_NOIDENTIFY;
LONG rc = MMIO_ERROR;
if (!lParam1 && !lParam2) return MMIO_ERROR;
hmmioTemp = (HMMIO)lParam2;
if (!hmmioTemp) {
hmmioTemp = mmioOpen((PSZ)lParam1, NULL, ulTempFlags);
}
if (hmmioTemp) {
rc = mmioRead(hmmioTemp, buf, 4);
if (rc == 4 && buf[0] == 'O' && buf[1] == 'g' &&
buf[2] == 'g' && buf[3] == 'S') {
rc = MMIO_SUCCESS;
}
if (!lParam2) mmioClose(hmmioTemp, 0);
}
return rc;
}
break;
case MMIOM_GETFORMATINFO: {
PMMFORMATINFO pmmformatinfo;
pmmformatinfo = (PMMFORMATINFO)lParam1;
pmmformatinfo->ulStructLen = sizeof(MMFORMATINFO);
pmmformatinfo->fccIOProc = FOURCC_Vorbis;
pmmformatinfo->ulIOProcType = MMIO_IOPROC_FILEFORMAT;
pmmformatinfo->ulMediaType = MMIO_MEDIATYPE_AUDIO;
pmmformatinfo->ulFlags = MMIO_CANREADTRANSLATED
| MMIO_CANWRITETRANSLATED
| MMIO_CANSEEKTRANSLATED;
strcpy(pmmformatinfo->szDefaultFormatExt, "OGG");
pmmformatinfo->ulCodePage = 0;
pmmformatinfo->ulLanguage = 0;
pmmformatinfo->lNameLength = 21;
return MMIO_SUCCESS;
}
break;
case MMIOM_GETFORMATNAME:
if (lParam2 > 21) {
strcpy((PSZ)lParam1, "Ogg Vorbis");
return MMIO_SUCCESS;
} else return MMIO_ERROR;
break;
case MMIOM_QUERYHEADERLENGTH: return (sizeof (MMAUDIOHEADER));
break;
case MMIOM_GETHEADER: {
OggVorbis_File *oggfile;
DecInfo *decInfo;
PMMAUDIOHEADER mmaudioheader;
vorbis_info *vi;
if (!pmmioinfo || !pmmioinfo->pExtraInfoStruct) return 0;
if (!(pmmioinfo->ulFlags & MMIO_READ)) return 0;
decInfo = (DecInfo *)pmmioinfo->pExtraInfoStruct;
oggfile = &decInfo->oggfile;
if (READNUM != decInfo->t){
pmmioinfo->ulErrorRet = MMIOERR_INVALID_STRUCTURE;
return 0;
}
#ifdef DEBUG
fprintf(file,"HERE\n");
#endif
if (!(pmmioinfo->ulTranslate & MMIO_TRANSLATEHEADER) &&
!(pmmioinfo->ulTranslate & MMIO_TRANSLATEDATA)) return 0;
mmaudioheader = (MMAUDIOHEADER *)lParam1;
if (sizeof(MMAUDIOHEADER) > lParam2) {
pmmioinfo->ulErrorRet = MMIOERR_INVALID_BUFFER_LENGTH;
return 0;
}
#ifdef DEBUG
fprintf(file,"THERE\n");
#endif
vi = ov_info(oggfile, -1);
if (!vi) {
pmmioinfo->ulErrorRet = MMIOERR_INVALID_STRUCTURE;
return 0;
}
mmaudioheader->ulContentType = MMIO_MIDI_UNKNOWN;
mmaudioheader->ulMediaType = MMIO_MEDIATYPE_AUDIO;
mmaudioheader->mmXWAVHeader.WAVEHeader.usFormatTag=DATATYPE_WAVEFORM;
mmaudioheader->mmXWAVHeader.WAVEHeader.usChannels = vi->channels;
mmaudioheader->mmXWAVHeader.WAVEHeader.ulSamplesPerSec = vi->rate;
mmaudioheader->mmXWAVHeader.WAVEHeader.usBitsPerSample = 16;
mmaudioheader->mmXWAVHeader.WAVEHeader.ulAvgBytesPerSec=
mmaudioheader->mmXWAVHeader.WAVEHeader.usChannels *
mmaudioheader->mmXWAVHeader.WAVEHeader.ulSamplesPerSec *
mmaudioheader->mmXWAVHeader.WAVEHeader.usBitsPerSample / 8;
mmaudioheader->mmXWAVHeader.WAVEHeader.usBlockAlign=
mmaudioheader->mmXWAVHeader.WAVEHeader.usChannels *
mmaudioheader->mmXWAVHeader.WAVEHeader.usBitsPerSample / 8;
mmaudioheader->mmXWAVHeader.XWAVHeaderInfo.ulAudioLengthInMS=
(unsigned long)(ov_time_total(oggfile, -1)*1000.0);
mmaudioheader->mmXWAVHeader.XWAVHeaderInfo.ulAudioLengthInBytes=
(unsigned long)ov_pcm_total(oggfile, -1)*
mmaudioheader->mmXWAVHeader.WAVEHeader.usBlockAlign;
#ifdef DEBUG
fprintf(file,"time: %ld size: %ld rate: %ld\n",
mmaudioheader->mmXWAVHeader.XWAVHeaderInfo.ulAudioLengthInMS,
mmaudioheader->mmXWAVHeader.XWAVHeaderInfo.ulAudioLengthInBytes,
mmaudioheader->mmXWAVHeader.WAVEHeader.ulSamplesPerSec);
#endif
if (0 != decInfo->vorbisOptions && VORBIS_COOKIE == decInfo->vorbisOptions->cookie) {
decInfo->vorbisOptions->nominal_bitrate = ov_bitrate(oggfile, -1);
mmaudioheader->mmXWAVHeader.XWAVHeaderInfo.pAdditionalInformation = decInfo->vorbisOptions;
}
return (sizeof (MMAUDIOHEADER));
}
break;
case MMIOM_SETHEADER: {
EncInfo *encInfo;
PMMAUDIOHEADER mmaudioheader;
int totalout = 0;
int rc;
if (!pmmioinfo || !pmmioinfo->pExtraInfoStruct) return 0;
encInfo = (EncInfo*)pmmioinfo->pExtraInfoStruct;
if (WRITENUM != encInfo->t) return 0;
#ifdef DEBUG
fprintf(file,"write header: %x, %x, %x\n",!(pmmioinfo->ulFlags & MMIO_WRITE),
encInfo->headerSet, (!(pmmioinfo->ulTranslate & MMIO_TRANSLATEHEADER) &&
!(pmmioinfo->ulTranslate & MMIO_TRANSLATEDATA)));
fprintf(file,"flag: %x, trans: %x\n",pmmioinfo->ulFlags,pmmioinfo->ulTranslate);
#endif
if (/*!(pmmioinfo->ulFlags & MMIO_WRITE) ||*/ encInfo->headerSet
|| (!(pmmioinfo->ulTranslate & MMIO_TRANSLATEHEADER) &&
!(pmmioinfo->ulTranslate & MMIO_TRANSLATEDATA))) return 0;
if (!lParam1) {
pmmioinfo->ulErrorRet = MMIOERR_INVALID_STRUCTURE;
return 0;
}
mmaudioheader = (PMMAUDIOHEADER)lParam1;
if (lParam2 != sizeof(MMAUDIOHEADER)) {
pmmioinfo->ulErrorRet = MMIOERR_INVALID_BUFFER_LENGTH;
return 0;
}
/********** Encode setup ************/
if (0 != mmaudioheader->mmXWAVHeader.WAVEHeader.usBitsPerSample%8) {
/* Bit-rate must be multiple of 8 */
return 0;
}
encInfo->bitsPerSample=mmaudioheader->mmXWAVHeader.WAVEHeader.usBitsPerSample;
#ifdef DEBUG
fprintf(file,"ready to write header: ");
#endif
vorbis_info_init(&encInfo->vi);
if (0 == encInfo->vorbisOptions || VORBIS_COOKIE != encInfo->vorbisOptions->cookie) {
#ifdef DEBUG
fprintf(file,"default quality 0.3\n");
#endif
rc = vorbis_encode_init_vbr(&encInfo->vi,
mmaudioheader->mmXWAVHeader.WAVEHeader.usChannels,
mmaudioheader->mmXWAVHeader.WAVEHeader.ulSamplesPerSec, 0.3);
} else {
#ifdef DEBUG
fprintf(file,"bitsPerSample: %d channels: %d samplesPerSec: %ld min: %ld nominal: %ld max: %ld\n",
encInfo->bitsPerSample,
mmaudioheader->mmXWAVHeader.WAVEHeader.usChannels,
mmaudioheader->mmXWAVHeader.WAVEHeader.ulSamplesPerSec,
encInfo->vorbisOptions->max_bitrate,
encInfo->vorbisOptions->nominal_bitrate,
encInfo->vorbisOptions->min_bitrate);
#endif
rc = vorbis_encode_init(&encInfo->vi,
mmaudioheader->mmXWAVHeader.WAVEHeader.usChannels,
mmaudioheader->mmXWAVHeader.WAVEHeader.ulSamplesPerSec,
encInfo->vorbisOptions->max_bitrate,
encInfo->vorbisOptions->nominal_bitrate,
encInfo->vorbisOptions->min_bitrate);
}
if (rc) {
#ifdef DEBUG
fprintf(file,"encodeInit failed: %d\n",rc);
#endif
return 0;
} /* endif */
/* add a comment */
vorbis_comment_init(&encInfo->vc);
vorbis_comment_add_tag(&encInfo->vc,"ENCODER","mmioVorbis");
/* set up the analysis state and auxiliary encoding storage */
vorbis_analysis_init(&encInfo->vd,&encInfo->vi);
vorbis_block_init(&encInfo->vd,&encInfo->vb);
/* set up our packet->stream encoder */
/* pick a random serial number; that way we can more likely build
chained streams just by concatenation */
srand(time(NULL));
ogg_stream_init(&encInfo->os,rand());
{
ogg_packet header;
ogg_packet header_comm;
ogg_packet header_code;
vorbis_analysis_headerout(&encInfo->vd,&encInfo->vc,&header,&header_comm,&header_code);
ogg_stream_packetin(&encInfo->os,&header); /* automatically placed in its own
page */
ogg_stream_packetin(&encInfo->os,&header_comm);
ogg_stream_packetin(&encInfo->os,&header_code);
while(1){
int result=ogg_stream_flush(&encInfo->os,&encInfo->og);
if(result==0)break;
result = mmioWrite(encInfo->hmmioSS, encInfo->og.header,encInfo->og.header_len);
totalout += result;
if (result!=encInfo->og.header_len) {
ogg_stream_clear(&encInfo->os);
vorbis_block_clear(&encInfo->vb);
vorbis_dsp_clear(&encInfo->vd);
vorbis_comment_clear(&encInfo->vc);
vorbis_info_clear(&encInfo->vi);
return 0;
}
result = mmioWrite(encInfo->hmmioSS, encInfo->og.body,encInfo->og.body_len);
totalout += result;
if (result!=encInfo->og.body_len) {
ogg_stream_clear(&encInfo->os);
vorbis_block_clear(&encInfo->vb);
vorbis_dsp_clear(&encInfo->vd);
vorbis_comment_clear(&encInfo->vc);
vorbis_info_clear(&encInfo->vi);
return 0;
}
}
}
encInfo->headerSet = 1;
return totalout;
}
break;
case MMIOM_WRITE: {
EncInfo *encInfo;
if (!pmmioinfo || !pmmioinfo->pExtraInfoStruct) return MMIO_ERROR;
encInfo = (EncInfo*)pmmioinfo->pExtraInfoStruct;
if (WRITENUM != encInfo->t) return MMIO_ERROR;
if (!encInfo->headerSet) return MMIO_ERROR;
if (!(pmmioinfo->ulTranslate & MMIO_TRANSLATEDATA)) {
if (!lParam1) return MMIO_ERROR;
return mmioWrite(encInfo->hmmioSS, (PVOID)lParam1, lParam2);
} else {
if (lParam2 == 0) {
vorbis_analysis_wrote(&encInfo->vd,0);
} else {
long i;
int j, k;
int num;
float denom = 1;
signed char *readbuffer = (char *)lParam1;
/* data to encode */
/* expose the buffer to submit data */
int sampleSize = encInfo->vi.channels*encInfo->bitsPerSample/8;
int samples = lParam2/sampleSize;
float **buffer=vorbis_analysis_buffer(&encInfo->vd, samples);
#ifdef DEBUG
fprintf(file,"write: %ld\n",lParam2);
#endif
/* :TODO: Work with buffers not a multiple of sampleSize*/
if (lParam2 % sampleSize != 0) {
#ifdef DEBUG
fprintf(file,"Bad Write Buffer Size\n");
#endif
return MMIO_ERROR;
}
for(i=0;i<samples;i++){
for (j=0;j<encInfo->vi.channels;j++) {
num=0; denom=0.5;
if (encInfo->bitsPerSample<=8) {
buffer[j][i]=(float)((unsigned char)(readbuffer[i*sampleSize])-
(1<<(encInfo->bitsPerSample-1)))/
(float)(1<<(encInfo->bitsPerSample-1));
} else {
for (k=encInfo->bitsPerSample/8;k>0;k--) {
if (k==encInfo->bitsPerSample/8) {
num=(readbuffer[i*sampleSize+k-1]);
} else {
num=(num<<8)|((0xff)&(int)(readbuffer[i*sampleSize+k-1]));
}
denom *= 256.0;
}
buffer[j][i]=((float)num)/denom;
}
} /* endfor */
}
vorbis_analysis_wrote(&encInfo->vd,i);
} /* endif */
if (oggWrite(encInfo,0)>=0) {
return lParam2;
} else {
return MMIO_ERROR;
} /* endif */
}
}
break;
#ifdef DEBUG
case MMIOM_TEMPCHANGE: {
return MMIO_SUCCESS;
}
break;
#endif
}
#ifdef DEBUG
fprintf(file,"unexpected command: %x\n",usMsg);
#endif
return MMIOERR_UNSUPPORTED_MESSAGE;
}
int main(){
ogg_stream_state os; /* take physical pages, weld into a logical
stream of packets */
ogg_page og; /* one Ogg bitstream page. Vorbis packets are inside */
ogg_packet op; /* one raw packet of data for decode */
vorbis_info vi; /* struct that stores all the static vorbis bitstream
settings */
vorbis_comment vc; /* struct that stores all the user comments */
vorbis_dsp_state vd; /* central working state for the packet->PCM decoder */
vorbis_block vb; /* local working space for packet->PCM decode */
int eos=0,ret;
int i, founddata;
int numReads=0;
FILE *outFile = fopen("../test.ogg","wb");
/* we cheat on the WAV header; we just bypass 44 bytes (simplest WAV
header is 44 bytes) and assume that the data is 44.1khz, stereo, 16 bit
little endian pcm samples. This is just an example, after all. */
/********** Encode setup ************/
vorbis_info_init(&vi);
/* choose an encoding mode. A few possibilities commented out, one
actually used: */
/*********************************************************************
Encoding using a VBR quality mode. The usable range is -.1
(lowest quality, smallest file) to 1. (highest quality, largest file).
Example quality mode .4: 44kHz stereo coupled, roughly 128kbps VBR
ret = vorbis_encode_init_vbr(&vi,2,44100,.4);
---------------------------------------------------------------------
Encoding using an average bitrate mode (ABR).
example: 44kHz stereo coupled, average 128kbps VBR
ret = vorbis_encode_init(&vi,2,44100,-1,128000,-1);
---------------------------------------------------------------------
Encode using a quality mode, but select that quality mode by asking for
an approximate bitrate. This is not ABR, it is true VBR, but selected
using the bitrate interface, and then turning bitrate management off:
ret = ( vorbis_encode_setup_managed(&vi,2,44100,-1,128000,-1) ||
vorbis_encode_ctl(&vi,OV_ECTL_RATEMANAGE2_SET,NULL) ||
vorbis_encode_setup_init(&vi));
*********************************************************************/
ret=vorbis_encode_init_vbr(&vi,2,44100,1.0);
/* do not continue if setup failed; this can happen if we ask for a
mode that libVorbis does not support (eg, too low a bitrate, etc,
will return 'OV_EIMPL') */
if(ret)exit(1);
/* add a comment */
vorbis_comment_init(&vc);
vorbis_comment_add_tag(&vc,"ENCODER","encoder_example.c");
/* set up the analysis state and auxiliary encoding storage */
vorbis_analysis_init(&vd,&vi);
vorbis_block_init(&vd,&vb);
/* set up our packet->stream encoder */
/* pick a random serial number; that way we can more likely build
chained streams just by concatenation */
srand(time(NULL));
ogg_stream_init(&os,rand());
/* Vorbis streams begin with three headers; the initial header (with
most of the codec setup parameters) which is mandated by the Ogg
bitstream spec. The second header holds any comment fields. The
third header holds the bitstream codebook. We merely need to
make the headers, then pass them to libvorbis one at a time;
libvorbis handles the additional Ogg bitstream constraints */
{
ogg_packet header;
ogg_packet header_comm;
ogg_packet header_code;
vorbis_analysis_headerout(&vd,&vc,&header,&header_comm,&header_code);
ogg_stream_packetin(&os,&header); /* automatically placed in its own
page */
ogg_stream_packetin(&os,&header_comm);
ogg_stream_packetin(&os,&header_code);
/* This ensures the actual
* audio data will start on a new page, as per spec
*/
while(!eos){
int result=ogg_stream_flush(&os,&og);
if(result==0)break;
fwrite(og.header,1,og.header_len,outFile);
fwrite(og.body,1,og.body_len,outFile);
}
}
while(!eos){
long i;
long bytes=READ*4; /* stereo hardwired here */
numReads++;
if(numReads>10000) bytes=0;
if(bytes==0){
/* end of file. this can be done implicitly in the mainline,
but it's easier to see here in non-clever fashion.
Tell the library we're at end of stream so that it can handle
the last frame and mark end of stream in the output properly */
vorbis_analysis_wrote(&vd,0);
}else{
/* data to encode */
/* expose the buffer to submit data */
float **buffer=vorbis_analysis_buffer(&vd,READ);
/* uninterleave samples */
for(i=0;i<bytes/4;i++){
static float curamp = 0;
curamp += 0.15f;
buffer[0][i] = sinf(curamp);
buffer[1][i] = sinf(curamp);
}
/* tell the library how much we actually submitted */
vorbis_analysis_wrote(&vd,i);
}
/* vorbis does some data preanalysis, then divvies up blocks for
more involved (potentially parallel) processing. Get a single
block for encoding now */
while(vorbis_analysis_blockout(&vd,&vb)==1){
/* analysis, assume we want to use bitrate management */
vorbis_analysis(&vb,NULL);
vorbis_bitrate_addblock(&vb);
while(vorbis_bitrate_flushpacket(&vd,&op)){
/* weld the packet into the bitstream */
ogg_stream_packetin(&os,&op);
/* write out pages (if any) */
while(!eos){
int result=ogg_stream_pageout(&os,&og);
if(result==0)break;
fwrite(og.header,1,og.header_len,outFile);
fwrite(og.body,1,og.body_len,outFile);
/* this could be set above, but for illustrative purposes, I do
it here (to show that vorbis does know where the stream ends) */
if(ogg_page_eos(&og))eos=1;
}
}
}
}
/* clean up and exit. vorbis_info_clear() must be called last */
ogg_stream_clear(&os);
vorbis_block_clear(&vb);
vorbis_dsp_clear(&vd);
vorbis_comment_clear(&vc);
vorbis_info_clear(&vi);
/* ogg_page and ogg_packet structs always point to storage in
libvorbis. They're never freed or manipulated directly */
fprintf(stderr,"Done.\n");
return(0);
}
DEFINE_CONSTRUCTOR() {
Private *pv = NULL;
JL_DEFINE_ARGS;
JL_ASSERT_CONSTRUCTING();
JL_DEFINE_CONSTRUCTOR_OBJ;
JL_ASSERT_ARGC_RANGE(0,3);
pv = static_cast<Private*>(jl_malloc(sizeof(Private)));
JL_SetPrivate(JL_OBJ, pv);
long channels = jl::getValueDefault(cx, JL_SARG(1), 2L);
long rate = jl::getValueDefault(cx, JL_SARG(2), 44100L);
float quality = jl::getValueDefault(cx, JL_SARG(3), 0.f);
// JL_ASSERT_RANGE(quality, -0.1f, 1.0f, "quality");
vorbis_info_init(&pv->vi);
int st;
//st = vorbis_encode_setup_vbr(&pv->vi, 2, 44100, 0.);
// st = vorbis_encode_setup_init(&pv->vi);
//vorbis_encode_ctl(&pv->vi,
vorbis_encode_ctl(&pv->vi, OV_ECTL_RATEMANAGE_SET, NULL);
// VBR
st = vorbis_encode_init_vbr(&pv->vi, channels, rate, quality);
ASSERT( st == 0 );
/*
// CBR/ABR
st = vorbis_encode_init(&pv->vi, channels, rate, 64 *1024, 96 *1024, 128 *1024);
ASSERT( st == 0 );
*/
// st = vorbis_encode_ctl(&pv->vi, OV_ECTL_RATEMANAGE2_SET, NULL);
// ASSERT( st == 0 );
st = vorbis_analysis_init(&pv->vds, &pv->vi);
ASSERT( st == 0 );
st = vorbis_block_init(&pv->vds, &pv->vb);
ASSERT( st == 0 );
// ogg stream
srand((unsigned)time(NULL));
st = ogg_stream_init(&pv->oss, rand());
ASSERT( st == 0 );
ogg_packet header;
ogg_packet header_comm;
ogg_packet header_code;
vorbis_comment vc;
vorbis_comment_init(&vc);
//vorbis_comment_add_tag(&vc, "ENCODER", "jslibs");
st = vorbis_analysis_headerout(&pv->vds, &vc, &header, &header_comm, &header_code);
ASSERT( st == 0 );
st = ogg_stream_packetin(&pv->oss, &header);
ASSERT( st == 0 );
st = ogg_stream_packetin(&pv->oss, &header_comm);
ASSERT( st == 0 );
st = ogg_stream_packetin(&pv->oss, &header_code);
ASSERT( st == 0 );
/*
for (;;) {
int flushStatus = ogg_stream_flush(&pv->oss, &pv->op);
if( flushStatus == 0 )
break;
}
dstBuf.Write(pv->op.header, pv->op.header_len);
dstBuf.Write(pv->op.body, pv->op.body_len);
*/
return true;
bad:
jl_free(pv);
return false;
}
/*!
* \brief Create a new OGG/Vorbis filestream and set it up for writing.
* \param fd File descriptor that points to on-disk storage.
* \param comment Comment that should be embedded in the OGG/Vorbis file.
* \return A new filestream.
*/
static struct cw_filestream *ogg_vorbis_rewrite(FILE *fp, const char *comment)
{
ogg_packet header;
ogg_packet header_comm;
ogg_packet header_code;
struct cw_filestream *tmp;
if ((tmp = malloc(sizeof(struct cw_filestream))))
{
memset(tmp, 0, sizeof(struct cw_filestream));
tmp->writing = 1;
tmp->fp = fp;
vorbis_info_init(&tmp->vi);
if (vorbis_encode_init_vbr(&tmp->vi, 1, 8000, 0.4))
{
cw_log(LOG_ERROR, "Unable to initialize Vorbis encoder!\n");
free(tmp);
return NULL;
}
vorbis_comment_init(&tmp->vc);
vorbis_comment_add_tag(&tmp->vc, "ENCODER", "CallWeaver");
if (comment)
vorbis_comment_add_tag(&tmp->vc, "COMMENT", (char *) comment);
vorbis_analysis_init(&tmp->vd, &tmp->vi);
vorbis_block_init(&tmp->vd, &tmp->vb);
ogg_stream_init(&tmp->os, rand());
vorbis_analysis_headerout(&tmp->vd, &tmp->vc, &header, &header_comm, &header_code);
ogg_stream_packetin(&tmp->os, &header);
ogg_stream_packetin(&tmp->os, &header_comm);
ogg_stream_packetin(&tmp->os, &header_code);
while (!tmp->eos)
{
if (ogg_stream_flush(&tmp->os, &tmp->og) == 0)
break;
fwrite(tmp->og.header, 1, tmp->og.header_len, tmp->fp);
fwrite(tmp->og.body, 1, tmp->og.body_len, tmp->fp);
if (ogg_page_eos(&tmp->og))
tmp->eos = 1;
}
if (cw_mutex_lock(&ogg_vorbis_lock))
{
cw_log(LOG_WARNING, "Unable to lock ogg_vorbis list\n");
fclose(fp);
ogg_stream_clear(&tmp->os);
vorbis_block_clear(&tmp->vb);
vorbis_dsp_clear(&tmp->vd);
vorbis_comment_clear(&tmp->vc);
vorbis_info_clear(&tmp->vi);
free(tmp);
return NULL;
}
glistcnt++;
cw_mutex_unlock(&ogg_vorbis_lock);
cw_update_use_count();
}
return tmp;
}
void CDemoVideoRecorder::Init(int Width, int Height, int FPS, int Format, const char *pName)
{
m_pSound = Kernel()->RequestInterface<ISound>();
m_FPS = FPS;
m_ScreenWidth = Width;
m_ScreenHeight = Height;
m_Format = Format;
if (m_Format == IClient::DEMO_RECORD_FORMAT_OGV)
{
ogg_stream_init(&m_TheoraOggStreamState, rand());
ogg_stream_init(&m_VorbisOggStreamState, rand());
char aBuf[1024];
if (str_find_rev(pName, "/"))
str_format(aBuf, sizeof(aBuf), "%s.ogv", str_find_rev(pName, "/"));
else if (str_find_rev(aBuf, "\\"))
str_format(aBuf, sizeof(pName), "%s.ogv", str_find_rev(pName, "\\"));
else
str_format(aBuf, sizeof(aBuf), "%s.ogv", pName);
m_OggFile = io_open(aBuf, IOFLAG_WRITE);
//thread_sleep(10000);
vorbis_info_init(&m_VorbisEncodingInfo);
vorbis_encode_init_vbr(&m_VorbisEncodingInfo, 2, g_Config.m_SndRate, 1.0f); //2 ch - samplerate - quality 1
vorbis_analysis_init(&m_VorbisState, &m_VorbisEncodingInfo);
vorbis_block_init(&m_VorbisState, &m_VorbisBlock);
vorbis_comment_init(&m_VorbisComment);
ogg_packet header;
ogg_packet header_comm;
ogg_packet header_code;
vorbis_analysis_headerout(&m_VorbisState, &m_VorbisComment, &header, &header_comm, &header_code);
ogg_stream_packetin(&m_VorbisOggStreamState, &header);
ogg_stream_packetin(&m_VorbisOggStreamState, &header_comm);
ogg_stream_packetin(&m_VorbisOggStreamState, &header_code);
th_info_init(&m_TheoraEncodingInfo);
m_TheoraEncodingInfo.frame_width = m_ScreenWidth+15&~0xF;
m_TheoraEncodingInfo.frame_height = m_ScreenHeight+15&~0xF;
m_TheoraEncodingInfo.pic_width = m_ScreenWidth;
m_TheoraEncodingInfo.pic_height = m_ScreenHeight;
m_TheoraEncodingInfo.pic_x = m_TheoraEncodingInfo.frame_width - m_ScreenWidth>>1&~1;
m_TheoraEncodingInfo.pic_y = m_TheoraEncodingInfo.frame_height - m_ScreenHeight>>1&~1;
m_TheoraEncodingInfo.colorspace = TH_CS_UNSPECIFIED;
m_TheoraEncodingInfo.fps_numerator = FPS; //fps
m_TheoraEncodingInfo.fps_denominator = 1;
m_TheoraEncodingInfo.aspect_numerator = -1;
m_TheoraEncodingInfo.aspect_denominator = -1;
m_TheoraEncodingInfo.pixel_fmt = TH_PF_444;
m_TheoraEncodingInfo.target_bitrate = (int)(64870*(ogg_int64_t)48000>>16);
m_TheoraEncodingInfo.quality = 32;
m_TheoraEncodingInfo.keyframe_granule_shift = 0;
m_pThreoraContext = th_encode_alloc(&m_TheoraEncodingInfo);
int arg = TH_RATECTL_CAP_UNDERFLOW;
th_encode_ctl(m_pThreoraContext, TH_ENCCTL_SET_RATE_FLAGS, &arg, sizeof(arg));
th_comment CommentHeader;
ogg_packet OggPacket;
th_comment_init(&CommentHeader);
mem_zero(&OggPacket, sizeof(OggPacket));
//Flush
//Step 1
th_encode_flushheader(m_pThreoraContext, &CommentHeader, &OggPacket); // first header
ogg_stream_packetin(&m_TheoraOggStreamState, &OggPacket);
//
ogg_page OggPage;
ogg_stream_pageout(&m_TheoraOggStreamState, &OggPage);
io_write(m_OggFile, OggPage.header, OggPage.header_len);
io_write(m_OggFile, OggPage.body, OggPage.body_len);
while(1)
{
ogg_page OggPage;
if (ogg_stream_flush(&m_VorbisOggStreamState,&OggPage) == 0)
break;
io_write(m_OggFile, OggPage.header, OggPage.header_len);
io_write(m_OggFile, OggPage.body, OggPage.body_len);
}
while(th_encode_flushheader(m_pThreoraContext, &CommentHeader, &OggPacket))
{
ogg_stream_packetin(&m_TheoraOggStreamState, &OggPacket);
}
ogg_stream_flush(&m_TheoraOggStreamState, &OggPage);
io_write(m_OggFile, OggPage.header, OggPage.header_len);
io_write(m_OggFile, OggPage.body, OggPage.body_len);
}
virtual bool Cook(FName Format, const TArray<uint8>& SrcBuffer, FSoundQualityInfo& QualityInfo, TArray<uint8>& CompressedDataStore) const
{
check(Format == NAME_OGG);
#if WITH_OGGVORBIS
{
short ReadBuffer[SAMPLES_TO_READ * SAMPLE_SIZE * 2];
ogg_stream_state os; // take physical pages, weld into a logical stream of packets
ogg_page og; // one ogg bitstream page. Vorbis packets are inside
ogg_packet op; // one raw packet of data for decode
vorbis_info vi; // struct that stores all the static vorbis bitstream settings
vorbis_comment vc; // struct that stores all the user comments
vorbis_dsp_state vd; // central working state for the packet->PCM decoder
vorbis_block vb; // local working space for packet->PCM decode
uint32 i;
bool eos;
// Create a buffer to store compressed data
CompressedDataStore.Empty();
FMemoryWriter CompressedData( CompressedDataStore );
uint32 BufferOffset = 0;
float CompressionQuality = ( float )( QualityInfo.Quality + VORBIS_QUALITY_MODIFIER ) / 100.0f;
CompressionQuality = FMath::Clamp( CompressionQuality, -0.1f, 1.0f );
vorbis_info_init( &vi );
if( vorbis_encode_init_vbr( &vi, QualityInfo.NumChannels, QualityInfo.SampleRate, CompressionQuality ) )
{
return false;
}
// add a comment
vorbis_comment_init( &vc );
vorbis_comment_add_tag( &vc, "ENCODER", "UnrealEngine4" );
// set up the analysis state and auxiliary encoding storage
vorbis_analysis_init( &vd, &vi );
vorbis_block_init( &vd, &vb );
// set up our packet->stream encoder
ogg_stream_init( &os, 0 );
ogg_packet header;
ogg_packet header_comm;
ogg_packet header_code;
vorbis_analysis_headerout( &vd, &vc, &header, &header_comm, &header_code);
ogg_stream_packetin( &os, &header );
ogg_stream_packetin( &os, &header_comm );
ogg_stream_packetin( &os, &header_code );
// This ensures the actual audio data will start on a new page, as per spec
while( true )
{
int result = ogg_stream_flush( &os, &og );
if( result == 0 )
{
break;
}
CompressedData.Serialize( og.header, og.header_len );
CompressedData.Serialize( og.body, og.body_len );
}
eos = false;
while( !eos )
{
// Read samples
uint32 BytesToRead = FMath::Min( SAMPLES_TO_READ * QualityInfo.NumChannels * SAMPLE_SIZE, QualityInfo.SampleDataSize - BufferOffset );
FMemory::Memcpy( ReadBuffer, SrcBuffer.GetTypedData() + BufferOffset, BytesToRead );
BufferOffset += BytesToRead;
if( BytesToRead == 0)
{
// end of file
vorbis_analysis_wrote( &vd, 0 );
}
else
{
// expose the buffer to submit data
float **buffer = vorbis_analysis_buffer( &vd, SAMPLES_TO_READ );
if( QualityInfo.NumChannels == 1 )
{
for( i = 0; i < BytesToRead / SAMPLE_SIZE; i++ )
{
buffer[0][i] = ( ReadBuffer[i] ) / 32768.0f;
}
}
else
{
for( i = 0; i < BytesToRead / ( SAMPLE_SIZE * 2 ); i++ )
{
buffer[0][i] = ( ReadBuffer[i * 2] ) / 32768.0f;
buffer[1][i] = ( ReadBuffer[i * 2 + 1] ) / 32768.0f;
}
}
// tell the library how many samples we actually submitted
vorbis_analysis_wrote( &vd, i );
}
// vorbis does some data preanalysis, then divvies up blocks for more involved (potentially parallel) processing.
while( vorbis_analysis_blockout( &vd, &vb ) == 1 )
{
// analysis, assume we want to use bitrate management
vorbis_analysis( &vb, NULL );
vorbis_bitrate_addblock( &vb );
while( vorbis_bitrate_flushpacket( &vd, &op ) )
{
// weld the packet into the bitstream
ogg_stream_packetin( &os, &op );
// write out pages (if any)
while( !eos )
{
int result = ogg_stream_pageout( &os, &og );
if( result == 0 )
{
break;
}
CompressedData.Serialize( og.header, og.header_len );
CompressedData.Serialize( og.body, og.body_len );
// this could be set above, but for illustrative purposes, I do it here (to show that vorbis does know where the stream ends)
if( ogg_page_eos( &og ) )
{
eos = true;
}
}
}
}
}
// clean up and exit. vorbis_info_clear() must be called last
ogg_stream_clear( &os );
vorbis_block_clear( &vb );
vorbis_dsp_clear( &vd );
vorbis_comment_clear( &vc );
vorbis_info_clear( &vi );
// ogg_page and ogg_packet structs always point to storage in libvorbis. They're never freed or manipulated directly
}
return CompressedDataStore.Num() > 0;
#else
return false;
#endif // WITH_OGGVOBVIS
}
int audev_init_device(char *devname, long ratewanted, int verbose, extraopt_t *extra)
{
int ret;
int channels, format, rate;
int fragsize;
extraopt_t *opt;
double maxsecs = 5.0;
double quality = 0.5;
char *title = NULL;
if (verbose) {
printf("Boodler: VORBIS sound driver.\n");
}
if (device) {
fprintf(stderr, "Sound device is already open.\n");
return FALSE;
}
format = FALSE; /* always little-endian */
for (opt=extra; opt->key; opt++) {
if (!strcmp(opt->key, "time") && opt->val) {
maxsecs = atof(opt->val);
}
else if (!strcmp(opt->key, "quality") && opt->val) {
quality = atof(opt->val);
}
else if (!strcmp(opt->key, "title") && opt->val) {
title = opt->val;
}
else if (!strcmp(opt->key, "listdevices")) {
printf("Device list: give any writable file as a device name.\n");
}
}
if (!ratewanted)
ratewanted = DEFAULT_SOUNDRATE;
if (!devname)
devname = DEFAULT_FILENAME;
device = fopen(devname, "wb");
if (!device) {
fprintf(stderr, "Error opening file %s\n", devname);
return FALSE;
}
if (verbose) {
printf("Opened file %s.\n", devname);
}
rate = ratewanted;
channels = 2;
fragsize = 16384;
if (verbose) {
printf("%d channels, %d frames per second, 16-bit samples (signed, %s)\n",
channels, rate, (format?"big-endian":"little-endian"));
printf("vorbis VBR encoding quality %f\n", quality);
}
maxtime = (long)(maxsecs * (double)rate);
curtime = 0;
if (verbose) {
printf("%g seconds of output (%ld frames)\n", maxsecs, maxtime);
}
sound_rate = rate;
sound_channels = channels;
sound_format = format;
sound_buffersize = fragsize;
samplesperbuf = sound_buffersize / 2;
framesperbuf = sound_buffersize / (2 * sound_channels);
rawbuffer = (char *)malloc(sound_buffersize);
if (!rawbuffer) {
fprintf(stderr, "Unable to allocate sound buffer.\n");
fclose(device);
device = NULL;
return FALSE;
}
valbuffer = (long *)malloc(sizeof(long) * samplesperbuf);
if (!valbuffer) {
fprintf(stderr, "Unable to allocate sound buffer.\n");
free(rawbuffer);
rawbuffer = NULL;
fclose(device);
device = NULL;
return FALSE;
}
vorbis_info_init(&vi);
ret = vorbis_encode_init_vbr(&vi, 2, sound_rate, quality);
if (ret) {
fprintf(stderr, "Unable to initialize Vorbis encoder.\n");
free(valbuffer);
valbuffer = NULL;
free(rawbuffer);
rawbuffer = NULL;
fclose(device);
device = NULL;
return FALSE;
}
/* See <http://xiph.org/vorbis/doc/v-comment.html> */
vorbis_comment_init(&vc);
{
char commentbuf[256];
time_t nowtime;
struct tm *now;
if (title) {
strcpy(commentbuf, "Boodler: ");
strncat(commentbuf, title, 255-strlen(commentbuf));
vorbis_comment_add_tag(&vc, "TITLE", commentbuf);
}
nowtime = time(NULL);
now = localtime(&nowtime);
strftime(commentbuf, 255, "%Y-%m-%d (generated)", now);
vorbis_comment_add_tag(&vc, "DATE", commentbuf);
vorbis_comment_add_tag(&vc, "ENCODER", "Boodler");
}
vorbis_analysis_init(&vd, &vi);
vorbis_block_init(&vd, &vb);
srand(time(NULL));
ret = ogg_stream_init(&os, rand());
if (ret) {
fprintf(stderr, "Unable to initialize Ogg stream.\n");
free(valbuffer);
valbuffer = NULL;
free(rawbuffer);
rawbuffer = NULL;
fclose(device);
device = NULL;
return FALSE;
}
{
ogg_packet header;
ogg_packet header_comm;
ogg_packet header_code;
vorbis_analysis_headerout(&vd, &vc, &header, &header_comm, &header_code);
ogg_stream_packetin(&os, &header);
ogg_stream_packetin(&os, &header_comm);
ogg_stream_packetin(&os, &header_code);
while (!eos) {
int result = ogg_stream_flush(&os, &og);
if (result==0) break;
fwrite(og.header, 1, og.header_len, device);
fwrite(og.body, 1, og.body_len, device);
}
}
return TRUE;
}
krad_vorbis_t *krad_vorbis_encoder_create (int channels,
int sample_rate,
float quality) {
int ret;
int pos;
krad_vorbis_t *vorbis;
ogg_packet header_main;
ogg_packet header_comments;
ogg_packet header_codebooks;
vorbis = calloc (1, sizeof(krad_vorbis_t));
pos = 0;
vorbis->error = 0;
vorbis->state_str = "";
vorbis->channels = channels;
vorbis->sample_rate = sample_rate;
vorbis->quality = quality;
vorbis_info_init (&vorbis->vinfo);
printk ("KR Vorbis Encoder Version: %s", vorbis_version_string());
ret = vorbis_encode_init_vbr (&vorbis->vinfo,
vorbis->channels,
vorbis->sample_rate,
vorbis->quality);
if (ret < 0) {
vorbis->error = ret;
vorbis->state_str = "Krad Vorbis Encoder: vorbis_encode_init_vbr fail";
if (ret == OV_EIMPL) {
vorbis->state_str = "Krad Vorbis Encoder: vorbis mode not supported";
}
if (ret == OV_EINVAL) {
vorbis->state_str = "Krad Vorbis Encoder: illegal vorbis mode";
}
printke (vorbis->state_str);
return vorbis;
}
vorbis->small_blocksz = vorbis_info_blocksize (&vorbis->vinfo, 0);
vorbis->large_blocksz = vorbis_info_blocksize (&vorbis->vinfo, 1);
printk ("KR Vorbis Encoder Setup: Channels %d Sample Rate: %d Quality: %f",
vorbis->channels, vorbis->sample_rate, vorbis->quality);
printk ("KR Vorbis Encoder Setup: Small Block Size: %u Large Block Size: %u",
vorbis->small_blocksz, vorbis->large_blocksz);
vorbis_analysis_init (&vorbis->vdsp, &vorbis->vinfo);
vorbis_block_init (&vorbis->vdsp, &vorbis->vblock);
vorbis_comment_init (&vorbis->vc);
#ifdef KR_VERSION_STR_FULL
vorbis_comment_add_tag (&vorbis->vc, "ENCODER", KR_VERSION_STR_FULL);
#endif
vorbis->header.codec = VORBIS;
vorbis_analysis_headerout (&vorbis->vdsp,
&vorbis->vc,
&header_main,
&header_comments,
&header_codebooks);
vorbis->hdrdata[0] = 0x02;
vorbis->hdrdata[1] = (char)header_main.bytes;
vorbis->hdrdata[2] = (char)header_comments.bytes;
pos = 3;
memcpy (vorbis->hdrdata + pos,
header_main.packet,
header_main.bytes);
vorbis->header.data[0] = vorbis->hdrdata + pos;
vorbis->header.sz[0] = header_main.bytes;
pos += header_main.bytes;
memcpy (vorbis->hdrdata + pos,
header_comments.packet,
header_comments.bytes);
vorbis->header.data[1] = vorbis->hdrdata + pos;
vorbis->header.sz[1] = header_comments.bytes;
pos += header_comments.bytes;
memcpy (vorbis->hdrdata + pos,
header_codebooks.packet,
header_codebooks.bytes);
vorbis->header.data[2] = vorbis->hdrdata + pos;
vorbis->header.sz[2] = header_codebooks.bytes;
pos += header_codebooks.bytes;
//vorbis->header.header_combined = vorbis->hdrdata;
//vorbis->header.header_combined_size = pos;
vorbis->header.count = 3;
if (1) {
printk ("KR Vorbis Encoder Setup: header test start");
krad_vorbis_test_headers (&vorbis->header);
printk ("KR Vorbis Encoder Setup: header test end");
}
vorbis->state_str = "Krad Vorbis Encoder: Init OK";
return vorbis;
}
tbool CVorbisEncoder::Process_Init_Descendant()
{
// Setup encoder
vorbis_info_init(&vi);
//mfQuality = -0.1;
if (vorbis_encode_init_vbr(&vi, miOutputChannels, miInputSampleFreq, mfQuality) != 0) {
AppendErrMsg("Function vorbis_encode_init_vbr failed for unknown reason.");
return false;
}
// Note: Using vorbis_encode_init rather than vorbis_encode_init_vbr makes encoding 4 times slower
// because it will try harder at targetting the bitrate you ask of it.
// Also I think the guy with the unpronouncable name that tuned vorbis (the aoTuV versions)
// only bothered to optimize the "_vbr" method.. and that's quite ok.
// Lasse
//
//if (vorbis_encode_init(&vi, miOutputChannels, miInputSampleFreq, 256000, 192000, 32000) != 0) {
// AppendErrMsg("Function vorbis_encode_init(..) failed for unknown reason.");
// return false;
//}
// TODO: add comments
vorbis_comment_init(&vc);
vorbis_comment_add_tag(&vc,"ENCODER","Koblo 1.0 // aoTuV b5");
vorbis_comment_add_tag(&vc,"KOBLO_ENC_QUAL", (char*)GetQualityName(meQuality));
/* set up the analysis state and auxiliary encoding storage */
vorbis_analysis_init(&vd,&vi);
vorbis_block_init(&vd,&vb);
/* set up our packet->stream encoder */
/* pick a random serial number; that way we can more likely build
chained streams just by concatenation */
srand((unsigned)time(NULL));
ogg_stream_init(&os,rand());
/* Vorbis streams begin with three headers; the initial header (with
most of the codec setup parameters) which is mandated by the Ogg
bitstream spec. The second header holds any comment fields. The
third header holds the bitstream codebook. We merely need to
make the headers, then pass them to libvorbis one at a time;
libvorbis handles the additional Ogg bitstream constraints */
{
ogg_packet header;
ogg_packet header_comm;
ogg_packet header_code;
vorbis_analysis_headerout(&vd,&vc,&header,&header_comm,&header_code);
ogg_stream_packetin(&os,&header); /* automatically placed in its own
page */
ogg_stream_packetin(&os,&header_comm);
ogg_stream_packetin(&os,&header_code);
/* This ensures the actual
* audio data will start on a new page, as per spec
*/
while(1){
int result=ogg_stream_flush(&os,&og);
if(result==0)break;
//fwrite(og.header,1,og.header_len,stdout);
//fwrite(og.body,1,og.body_len,stdout);
WriteOutput((char*)og.header, og.header_len);
WriteOutput((char*)og.body, og.body_len);
}
}
return true;
} // Process_Init_Secendant
/*------------------------------------------------------------------------------
* Open an encoding session
*----------------------------------------------------------------------------*/
bool
VorbisLibEncoder :: open ( void )
throw ( Exception )
{
int ret;
if ( isOpen() ) {
close();
}
vorbis_info_init( &vorbisInfo);
if ( isVBR() ) {
if ( (ret = vorbis_encode_init_vbr( &vorbisInfo,
getInChannel(),
getOutSampleRate(),
getOutQuality() )) ) {
throw Exception( __FILE__, __LINE__,
"vorbis encode init error", ret);
}
} else {
#ifdef VORBIS_LIB_RC3
if ( (ret = vorbis_encode_init( &vorbisInfo,
getInChannel(),
getOutSampleRate(),
getOutBitrate() * 1024,
getOutBitrate() * 1024,
-1 )) ) {
throw Exception( __FILE__, __LINE__,
"vorbis encode init error", ret);
}
#else
if ( (ret = vorbis_encode_init( &vorbisInfo,
getInChannel(),
getOutSampleRate(),
-1,
getOutBitrate() * 1024,
-1 )) ) {
throw Exception( __FILE__, __LINE__,
"vorbis encode init error", ret);
}
#endif
}
if ( (ret = vorbis_analysis_init( &vorbisDspState, &vorbisInfo)) ) {
throw Exception( __FILE__, __LINE__, "vorbis analysis init error", ret);
}
if ( (ret = vorbis_block_init( &vorbisDspState, &vorbisBlock)) ) {
throw Exception( __FILE__, __LINE__, "vorbis block init error", ret);
}
if ( (ret = ogg_stream_init( &oggStreamState, 0)) ) {
throw Exception( __FILE__, __LINE__, "ogg stream init error", ret);
}
// open the underlying sink
if ( !sink->open() ) {
throw Exception( __FILE__, __LINE__,
"vorbis lib opening underlying sink error");
}
// create an empty vorbis_comment structure
vorbis_comment_init( &vorbisComment);
// create the vorbis stream headers and send them to the underlying sink
ogg_packet header;
ogg_packet commentHeader;
ogg_packet codeHeader;
if ( (ret = vorbis_analysis_headerout( &vorbisDspState,
&vorbisComment,
&header,
&commentHeader,
&codeHeader )) ) {
throw Exception( __FILE__, __LINE__, "vorbis header init error", ret);
}
ogg_stream_packetin( &oggStreamState, &header);
ogg_stream_packetin( &oggStreamState, &commentHeader);
ogg_stream_packetin( &oggStreamState, &codeHeader);
ogg_page oggPage;
while ( ogg_stream_flush( &oggStreamState, &oggPage) ) {
sink->write( oggPage.header, oggPage.header_len);
sink->write( oggPage.body, oggPage.body_len);
}
vorbis_comment_clear( &vorbisComment );
// initialize the resampling coverter if needed
if ( converter ) {
converter->initialize( resampleRatio, getInChannel());
}
encoderOpen = true;
return true;
}
int Encode_Ogg(void *stream,void(*writefunc)(void *bytes,int count,void *stream),int freq,int channels,float *samples,int length,float compression) {
oggwriter *ogg;
int eos;
int result;
ogg=(oggwriter*)malloc(sizeof(oggwriter));
vorbis_info_init(&ogg->vi);
result=vorbis_encode_init_vbr(&ogg->vi,channels,freq,compression);
if(result) return -1; //error format not supported...
// add a comment
vorbis_comment_init(&ogg->vc);
vorbis_comment_add_tag(&ogg->vc,"ENCODER","encoder_example.c");
// set up the analysis state and auxiliary encoding storage
vorbis_analysis_init(&ogg->vd,&ogg->vi);
vorbis_block_init(&ogg->vd,&ogg->vb);
srand(time(NULL));
ogg_stream_init(&ogg->os,rand());
ogg_packet header;
ogg_packet header_comm;
ogg_packet header_code;
vorbis_analysis_headerout(&ogg->vd,&ogg->vc,&header,&header_comm,&header_code);
ogg_stream_packetin(&ogg->os,&header); //automatically placed in its own page
ogg_stream_packetin(&ogg->os,&header_comm);
ogg_stream_packetin(&ogg->os,&header_code);
//This ensures the actual audio data will start on a new page, as per spec
while(1) {
result=ogg_stream_flush(&ogg->os,&ogg->og);
if(result==0)break;
writefunc(ogg->og.header,ogg->og.header_len,stream);
writefunc(ogg->og.body,ogg->og.body_len,stream);
}
int i,c,n;
eos=0;
while(!eos) {
if (length>0) {
float **buffer=vorbis_analysis_buffer(&ogg->vd,READ);
n=length;
if (n>READ) n=READ;
//uninterleave samples
for (i=0; i<n; i++) {
for (c=0; c<channels; c++) {
buffer[c][i]=*samples++;
}
}
length=length-n;
//tell the library how much we actually submitted
vorbis_analysis_wrote(&ogg->vd,i);
} else {
vorbis_analysis_wrote(&ogg->vd,0);
}
while(vorbis_analysis_blockout(&ogg->vd,&ogg->vb)==1) {
//analysis, assume we want to use bitrate management
vorbis_analysis(&ogg->vb,NULL);
vorbis_bitrate_addblock(&ogg->vb);
while(vorbis_bitrate_flushpacket(&ogg->vd,&ogg->op)) {
//weld the packet into the bitstream
ogg_stream_packetin(&ogg->os,&ogg->op);
//write out pages (if any)
while(!eos) {
result=ogg_stream_pageout(&ogg->os,&ogg->og);
if(result==0)break;
writefunc(ogg->og.header,ogg->og.header_len,stream);
writefunc(ogg->og.body,ogg->og.body_len,stream);
if (ogg_page_eos(&ogg->og)) eos=1;
}
}
}
}
//clean up and exit. vorbis_info_clear() must be called last
ogg_stream_clear(&ogg->os);
vorbis_block_clear(&ogg->vb);
vorbis_dsp_clear(&ogg->vd);
vorbis_comment_clear(&ogg->vc);
vorbis_info_clear(&ogg->vi);
free(ogg);
return 0;
}
bool ExportOGG(AudacityProject *project,
bool stereo, wxString fName,
bool selectionOnly, double t0, double t1)
{
double rate = project->GetRate();
wxWindow *parent = project;
TrackList *tracks = project->GetTracks();
double quality = (gPrefs->Read("/FileFormats/OggExportQuality", 50)/(float)100.0);
wxLogNull logNo; // temporarily disable wxWindows error messages
bool cancelling = false;
int eos = 0;
wxFFile outFile(fName, "wb");
if(!outFile.IsOpened()) {
wxMessageBox(_("Unable to open target file for writing"));
return false;
}
// All the Ogg and Vorbis encoding data
ogg_stream_state stream;
ogg_page page;
ogg_packet packet;
vorbis_info info;
vorbis_comment comment;
vorbis_dsp_state dsp;
vorbis_block block;
// Encoding setup
vorbis_info_init(&info);
vorbis_encode_init_vbr(&info, stereo ? 2 : 1, int(rate + 0.5), quality);
vorbis_comment_init(&comment);
// If we wanted to add comments, we would do it here
// Set up analysis state and auxiliary encoding storage
vorbis_analysis_init(&dsp, &info);
vorbis_block_init(&dsp, &block);
// Set up packet->stream encoder. According to encoder example,
// a random serial number makes it more likely that you can make
// chained streams with concatenation.
srand(time(NULL));
ogg_stream_init(&stream, rand());
// First we need to write the required headers:
// 1. The Ogg bitstream header, which contains codec setup params
// 2. The Vorbis comment header
// 3. The bitstream codebook.
//
// After we create those our responsibility is complete, libvorbis will
// take care of any other ogg bistream constraints (again, according
// to the example encoder source)
ogg_packet bitstream_header;
ogg_packet comment_header;
ogg_packet codebook_header;
vorbis_analysis_headerout(&dsp, &comment, &bitstream_header, &comment_header,
&codebook_header);
// Place these headers into the stream
ogg_stream_packetin(&stream, &bitstream_header);
ogg_stream_packetin(&stream, &comment_header);
ogg_stream_packetin(&stream, &codebook_header);
// Flushing these headers now guarentees that audio data will
// start on a new page, which apparently makes streaming easier
while(ogg_stream_flush(&stream, &page))
{
outFile.Write(page.header, page.header_len);
outFile.Write(page.body, page.body_len);
}
wxProgressDialog *progress = NULL;
wxYield();
wxStartTimer();
int numWaveTracks;
WaveTrack **waveTracks;
tracks->GetWaveTracks(selectionOnly, &numWaveTracks, &waveTracks);
Mixer *mixer = new Mixer(numWaveTracks, waveTracks,
tracks->GetTimeTrack(),
t0, t1,
stereo? 2: 1, SAMPLES_PER_RUN, false,
rate, floatSample);
while(!cancelling && !eos) {
float **vorbis_buffer = vorbis_analysis_buffer(&dsp, SAMPLES_PER_RUN);
sampleCount samplesThisRun = mixer->Process(SAMPLES_PER_RUN);
if (samplesThisRun == 0) {
// Tell the library that we wrote 0 bytes - signalling the end.
vorbis_analysis_wrote(&dsp, 0);
}
else {
float *left = (float *)mixer->GetBuffer(0);
memcpy(vorbis_buffer[0], left, sizeof(float)*SAMPLES_PER_RUN);
if(stereo) {
float *right = (float *)mixer->GetBuffer(1);
memcpy(vorbis_buffer[1], right, sizeof(float)*SAMPLES_PER_RUN);
}
// tell the encoder how many samples we have
vorbis_analysis_wrote(&dsp, samplesThisRun);
}
// I don't understand what this call does, so here is the comment
// from the example, verbatim:
//
// vorbis does some data preanalysis, then divvies up blocks
// for more involved (potentially parallel) processing. Get
// a single block for encoding now
while(vorbis_analysis_blockout(&dsp, &block) == 1) {
// analysis, assume we want to use bitrate management
vorbis_analysis(&block, NULL);
vorbis_bitrate_addblock(&block);
while(vorbis_bitrate_flushpacket(&dsp, &packet)) {
// add the packet to the bitstream
ogg_stream_packetin(&stream, &packet);
// From vorbis-tools-1.0/oggenc/encode.c:
// If we've gone over a page boundary, we can do actual output,
// so do so (for however many pages are available).
while (!eos) {
int result = ogg_stream_pageout(&stream, &page);
if (!result)
break;
outFile.Write(page.header, page.header_len);
outFile.Write(page.body, page.body_len);
if (ogg_page_eos(&page))
eos = 1;
}
}
}
if(progress) {
int progressvalue = int (1000 * ((mixer->MixGetCurrentTime()-t0) /
(t1-t0)));
cancelling = !progress->Update(progressvalue);
}
else if(wxGetElapsedTime(false) > 500) {
wxString message = selectionOnly ?
_("Exporting the selected audio as Ogg Vorbis") :
_("Exporting the entire project as Ogg Vorbis");
progress = new wxProgressDialog(
_("Export"),
message,
1000,
parent,
wxPD_CAN_ABORT | wxPD_REMAINING_TIME | wxPD_AUTO_HIDE);
}
}
delete mixer;
ogg_stream_clear(&stream);
vorbis_block_clear(&block);
vorbis_dsp_clear(&dsp);
vorbis_info_clear(&info);
outFile.Close();
if(progress)
delete progress;
return true;
}
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)
{
ogg_context *context = (ogg_context *)ctx;
if (!context || !context->callbacks.write)
return false;
// we accept only 2 ch 16bit atm
if (iInChannels != 2 || iInBits != 16)
return false;
if (preset == -1)
vorbis_encode_init(&context->vorbisInfo, iInChannels, iInRate, -1, bitrate*1000, -1);
else
vorbis_encode_init_vbr(&context->vorbisInfo, iInChannels, iInRate, float(preset)/10.0f);
/* add a comment */
vorbis_comment comm;
vorbis_comment_init(&comm);
vorbis_comment_add_tag(&comm, (char*)"comment", (char*)comment);
vorbis_comment_add_tag(&comm, (char*)"artist", (char*)artist);
vorbis_comment_add_tag(&comm, (char*)"title", (char*)title);
vorbis_comment_add_tag(&comm, (char*)"album", (char*)album);
vorbis_comment_add_tag(&comm, (char*)"albumartist", (char*)albumartist);
vorbis_comment_add_tag(&comm, (char*)"genre", (char*)genre);
vorbis_comment_add_tag(&comm, (char*)"tracknumber", (char*)track);
vorbis_comment_add_tag(&comm, (char*)"date", (char*)year);
/* set up the analysis state and auxiliary encoding storage */
vorbis_analysis_init(&context->vorbisDspState, &context->vorbisInfo);
vorbis_block_init(&context->vorbisDspState, &context->vorbisBlock);
/* set up our packet->stream encoder */
/* pick a random serial number; that way we can more likely build
chained streams just by concatenation */
srand((unsigned int)time(NULL));
ogg_stream_init(&context->oggStreamState, rand());
/* write out the metadata */
ogg_packet header;
ogg_packet header_comm;
ogg_packet header_code;
ogg_page page;
vorbis_analysis_headerout(&context->vorbisDspState, &comm,
&header, &header_comm, &header_code);
ogg_stream_packetin(&context->oggStreamState, &header);
ogg_stream_packetin(&context->oggStreamState, &header_comm);
ogg_stream_packetin(&context->oggStreamState, &header_code);
while (1)
{
/* This ensures the actual
* audio data will start on a new page, as per spec
*/
int result = ogg_stream_flush(&context->oggStreamState, &page);
if (result == 0)
break;
context->callbacks.write(context->callbacks.opaque, page.header, page.header_len);
context->callbacks.write(context->callbacks.opaque, page.body, page.body_len);
}
vorbis_comment_clear(&comm);
context->inited = true;
return true;
}
//________________________________________________
// Init Vorbis encoder
// frequence : Impose frequency , 0 means reuse the incoming fq
// mode : VBR CBR
// bitrate for CBR : bitrate in kbps (96,192...)
// for VBR : quality (0, 1, 2, ... 11)
//
// return 0 : init failed
// 1 : init succeeded
//_______________________________________________
uint8_t AVDMProcessAudio_Vorbis::init( uint32_t bitrate, uint8_t mode)
{
ogg_packet header1,header2,header3;
int err;
vorbis_info_init(&VI) ;
if (mode==0) { //VBR
err=vorbis_encode_init_vbr(&VI,
_wavheader->channels,
_wavheader->frequency,
((float)bitrate-1)/10
);
} else { //CBR
err=vorbis_encode_init(&VI,
_wavheader->channels,
_wavheader->frequency,
-1, // Max bitrate
bitrate*1000, //long nominal_bitrate,
-1 //long min_bitrate))
);
}
if (err!=0) {
printf("vorbis init error\n");
return 0;
}
vorbis_analysis_init(&VD, &VI) ;
vorbis_block_init(&VD, &VB);
vorbis_comment_init(&VC);
vorbis_comment_add_tag(&VC, "encoder", "AVIDEMUX2") ;
vorbis_analysis_headerout(&VD, &VC, &header1,
&header2, &header3);
// Store all headers as extra data
// see ogg vorbis decode for details
// we need 3 packets
_extraLen=header1.bytes+header2.bytes+header3.bytes+3*sizeof(uint32_t);
_extraData=new uint8_t[_extraLen];
uint32_t *ex=(uint32_t *)_extraData;
uint8_t *d;
d=_extraData+sizeof(uint32_t)*3;
ex[0]=header1.bytes;
ex[1]=header2.bytes;
ex[2]=header3.bytes;
memcpy(d,header1.packet,ex[0]);
d+=ex[0];
memcpy(d,header2.packet,ex[1]);
d+=ex[1];
memcpy(d,header3.packet,ex[2]);
vorbis_comment_clear(&VC);
printf("\nVorbis encoder initialized\n");
if (mode==0)
printf("VBR Quality:%i\n",bitrate-1);
else
printf("CBR Bitrate:%lu\n",bitrate);
printf("Channels:%lu\n",_wavheader->channels);
printf("Frequenc:%lu\n",_wavheader->frequency);
return 1;
}
static int
ogg_write_header (SF_PRIVATE *psf, int UNUSED (calc_length))
{
OGG_PRIVATE *odata = (OGG_PRIVATE *) psf->container_data ;
VORBIS_PRIVATE *vdata = (VORBIS_PRIVATE *) psf->codec_data ;
int k, ret ;
vorbis_info_init (&vdata->vi) ;
/* The style of encoding should be selectable here, VBR quality mode. */
ret = vorbis_encode_init_vbr (&vdata->vi, psf->sf.channels, psf->sf.samplerate, vdata->quality) ;
#if 0
ret = vorbis_encode_init (&vdata->vi, psf->sf.channels, psf->sf.samplerate, -1, 128000, -1) ; /* average bitrate mode */
ret = ( vorbis_encode_setup_managed (&vdata->vi, psf->sf.channels,
psf->sf.samplerate, -1, 128000, -1) ||
vorbis_encode_ctl (&vdata->vi, OV_ECTL_RATEMANAGE_AVG, NULL) ||
vorbis_encode_setup_init (&vdata->vi)) ;
#endif
if (ret)
return SFE_BAD_OPEN_FORMAT ;
vdata->loc = 0 ;
/* add a comment */
vorbis_comment_init (&vdata->vc) ;
vorbis_comment_add_tag (&vdata->vc, "ENCODER", "libsndfile") ;
for (k = 0 ; k < SF_MAX_STRINGS ; k++)
{ const char * name ;
if (psf->strings [k].type == 0)
break ;
switch (psf->strings [k].type)
{ case SF_STR_TITLE : name = "TITLE" ; break ;
case SF_STR_COPYRIGHT : name = "COPYRIGHT" ; break ;
case SF_STR_SOFTWARE : name = "SOFTWARE" ; break ;
case SF_STR_ARTIST : name = "ARTIST" ; break ;
case SF_STR_COMMENT : name = "COMMENT" ; break ;
case SF_STR_DATE : name = "DATE" ; break ;
case SF_STR_ALBUM : name = "ALBUM" ; break ;
case SF_STR_LICENSE : name = "LICENSE" ; break ;
case SF_STR_TRACKNUMBER : name = "TRACKNUMBER" ; break ;
case SF_STR_GENRE : name = "GENRE" ; break ;
default : continue ;
} ;
vorbis_comment_add_tag (&vdata->vc, name, psf->strings [k].str) ;
} ;
/* set up the analysis state and auxiliary encoding storage */
vorbis_analysis_init (&vdata->vd, &vdata->vi) ;
vorbis_block_init (&vdata->vd, &vdata->vb) ;
/*
** Set up our packet->stream encoder.
** Pick a random serial number ; that way we can more likely build
** chained streams just by concatenation.
*/
ogg_stream_init (&odata->os, psf_rand_int32 ()) ;
/* Vorbis streams begin with three headers ; the initial header (with
most of the codec setup parameters) which is mandated by the Ogg
bitstream spec. The second header holds any comment fields. The
third header holds the bitstream codebook. We merely need to
make the headers, then pass them to libvorbis one at a time ;
libvorbis handles the additional Ogg bitstream constraints */
{ ogg_packet header ;
ogg_packet header_comm ;
ogg_packet header_code ;
int result ;
vorbis_analysis_headerout (&vdata->vd, &vdata->vc, &header, &header_comm, &header_code) ;
ogg_stream_packetin (&odata->os, &header) ; /* automatically placed in its own page */
ogg_stream_packetin (&odata->os, &header_comm) ;
ogg_stream_packetin (&odata->os, &header_code) ;
/* This ensures the actual
* audio data will start on a new page, as per spec
*/
while ((result = ogg_stream_flush (&odata->os, &odata->og)) != 0)
{ psf_fwrite (odata->og.header, 1, odata->og.header_len, psf) ;
psf_fwrite (odata->og.body, 1, odata->og.body_len, psf) ;
} ;
}
return 0 ;
} /* ogg_write_header */
int main(int argc,char *argv[]){
int c,long_option_index,ret;
ogg_stream_state to; /* take physical pages, weld into a logical
stream of packets */
ogg_stream_state vo; /* take physical pages, weld into a logical
stream of packets */
ogg_page og; /* one Ogg bitstream page. Vorbis packets are inside */
ogg_packet op; /* one raw packet of data for decode */
theora_state td;
theora_info ti;
theora_comment tc;
vorbis_info vi; /* struct that stores all the static vorbis bitstream
settings */
vorbis_comment vc; /* struct that stores all the user comments */
vorbis_dsp_state vd; /* central working state for the packet->PCM decoder */
vorbis_block vb; /* local working space for packet->PCM decode */
int audioflag=0;
int videoflag=0;
int akbps=0;
int vkbps=0;
ogg_int64_t audio_bytesout=0;
ogg_int64_t video_bytesout=0;
double timebase;
FILE* outfile = stdout;
#ifdef _WIN32
# ifdef THEORA_PERF_DATA
LARGE_INTEGER start_time;
LARGE_INTEGER final_time;
LONGLONG elapsed_ticks;
LARGE_INTEGER ticks_per_second;
LONGLONG elapsed_secs;
LONGLONG elapsed_sec_mod;
double elapsed_secs_dbl ;
# endif
/* We need to set stdin/stdout to binary mode. Damn windows. */
/* if we were reading/writing a file, it would also need to in
binary mode, eg, fopen("file.wav","wb"); */
/* Beware the evil ifdef. We avoid these where we can, but this one we
cannot. Don't add any more, you'll probably go to hell if you do. */
_setmode( _fileno( stdin ), _O_BINARY );
_setmode( _fileno( stdout ), _O_BINARY );
#endif
while((c=getopt_long(argc,argv,optstring,options,&long_option_index))!=EOF){
switch(c){
case 'o':
outfile=fopen(optarg,"wb");
if(outfile==NULL){
fprintf(stderr,"Unable to open output file '%s'\n", optarg);
exit(1);
}
break;;
case 'a':
audio_q=atof(optarg)*.099;
if(audio_q<-.1 || audio_q>1){
fprintf(stderr,"Illegal audio quality (choose -1 through 10)\n");
exit(1);
}
audio_r=-1;
break;
case 'v':
video_q=rint(atof(optarg)*6.3);
if(video_q<0 || video_q>63){
fprintf(stderr,"Illegal video quality (choose 0 through 10)\n");
exit(1);
}
video_r=0;
break;
case 'A':
audio_r=atof(optarg)*1000;
if(audio_q<0){
fprintf(stderr,"Illegal audio quality (choose > 0 please)\n");
exit(1);
}
audio_q=-99;
break;
case 'V':
video_r=rint(atof(optarg)*1000);
if(video_r<45000 || video_r>2000000){
fprintf(stderr,"Illegal video bitrate (choose 45kbps through 2000kbps)\n");
exit(1);
}
video_q=0;
break;
case 's':
video_an=rint(atof(optarg));
break;
case 'S':
video_ad=rint(atof(optarg));
break;
case 'f':
video_hzn=rint(atof(optarg));
break;
case 'F':
video_hzd=rint(atof(optarg));
break;
default:
usage();
}
}
while(optind<argc){
/* assume that anything following the options must be a filename */
id_file(argv[optind]);
optind++;
}
#ifdef THEORA_PERF_DATA
# ifdef WIN32
QueryPerformanceCounter(&start_time);
# endif
#endif
/* yayness. Set up Ogg output stream */
srand(time(NULL));
{
/* need two inequal serial numbers */
int serial1, serial2;
serial1 = rand();
serial2 = rand();
if (serial1 == serial2) serial2++;
ogg_stream_init(&to,serial1);
ogg_stream_init(&vo,serial2);
}
/* Set up Theora encoder */
if(!video){
fprintf(stderr,"No video files submitted for compression?\n");
exit(1);
}
/* Theora has a divisible-by-sixteen restriction for the encoded video size */
/* scale the frame size up to the nearest /16 and calculate offsets */
video_x=((frame_x + 15) >>4)<<4;
video_y=((frame_y + 15) >>4)<<4;
/* We force the offset to be even.
This ensures that the chroma samples align properly with the luma
samples. */
frame_x_offset=((video_x-frame_x)/2)&~1;
frame_y_offset=((video_y-frame_y)/2)&~1;
theora_info_init(&ti);
ti.width=video_x;
ti.height=video_y;
ti.frame_width=frame_x;
ti.frame_height=frame_y;
ti.offset_x=frame_x_offset;
ti.offset_y=frame_y_offset;
ti.fps_numerator=video_hzn;
ti.fps_denominator=video_hzd;
ti.aspect_numerator=video_an;
ti.aspect_denominator=video_ad;
ti.colorspace=OC_CS_UNSPECIFIED;
ti.pixelformat=OC_PF_420;
ti.target_bitrate=video_r;
ti.quality=video_q;
ti.dropframes_p=0;
ti.quick_p=1;
ti.keyframe_auto_p=1;
ti.keyframe_frequency=64;
ti.keyframe_frequency_force=64;
ti.keyframe_data_target_bitrate=video_r*1.5;
ti.keyframe_auto_threshold=80;
ti.keyframe_mindistance=8;
ti.noise_sensitivity=1;
theora_encode_init(&td,&ti);
theora_info_clear(&ti);
/* initialize Vorbis too, assuming we have audio to compress. */
if(audio){
vorbis_info_init(&vi);
if(audio_q>-99)
ret = vorbis_encode_init_vbr(&vi,audio_ch,audio_hz,audio_q);
else
ret = vorbis_encode_init(&vi,audio_ch,audio_hz,-1,audio_r,-1);
if(ret){
fprintf(stderr,"The Vorbis encoder could not set up a mode according to\n"
"the requested quality or bitrate.\n\n");
exit(1);
}
vorbis_comment_init(&vc);
vorbis_analysis_init(&vd,&vi);
vorbis_block_init(&vd,&vb);
}
/* write the bitstream header packets with proper page interleave */
/* first packet will get its own page automatically */
theora_encode_header(&td,&op);
ogg_stream_packetin(&to,&op);
if(ogg_stream_pageout(&to,&og)!=1){
fprintf(stderr,"Internal Ogg library error.\n");
exit(1);
}
fwrite(og.header,1,og.header_len,outfile);
fwrite(og.body,1,og.body_len,outfile);
/* create the remaining theora headers */
theora_comment_init(&tc);
theora_encode_comment(&tc,&op);
ogg_stream_packetin(&to,&op);
/*theora_encode_comment() doesn't take a theora_state parameter, so it has to
allocate its own buffer to pass back the packet data.
If we don't free it here, we'll leak.
libogg2 makes this much cleaner: the stream owns the buffer after you call
packetin in libogg2, but this is not true in libogg1.*/
free(op.packet);
theora_encode_tables(&td,&op);
ogg_stream_packetin(&to,&op);
if(audio){
ogg_packet header;
ogg_packet header_comm;
ogg_packet header_code;
vorbis_analysis_headerout(&vd,&vc,&header,&header_comm,&header_code);
ogg_stream_packetin(&vo,&header); /* automatically placed in its own
page */
if(ogg_stream_pageout(&vo,&og)!=1){
fprintf(stderr,"Internal Ogg library error.\n");
exit(1);
}
fwrite(og.header,1,og.header_len,outfile);
fwrite(og.body,1,og.body_len,outfile);
/* remaining vorbis header packets */
ogg_stream_packetin(&vo,&header_comm);
ogg_stream_packetin(&vo,&header_code);
}
/* Flush the rest of our headers. This ensures
the actual data in each stream will start
on a new page, as per spec. */
while(1){
int result = ogg_stream_flush(&to,&og);
if(result<0){
/* can't get here */
fprintf(stderr,"Internal Ogg library error.\n");
exit(1);
}
if(result==0)break;
fwrite(og.header,1,og.header_len,outfile);
fwrite(og.body,1,og.body_len,outfile);
}
if(audio){
while(1){
int result=ogg_stream_flush(&vo,&og);
if(result<0){
/* can't get here */
fprintf(stderr,"Internal Ogg library error.\n");
exit(1);
}
if(result==0)break;
fwrite(og.header,1,og.header_len,outfile);
fwrite(og.body,1,og.body_len,outfile);
}
}
/* setup complete. Raw processing loop */
fprintf(stderr,"Compressing....\n");
while(1){
ogg_page audiopage;
ogg_page videopage;
/* is there an audio page flushed? If not, fetch one if possible */
audioflag=fetch_and_process_audio(audio,&audiopage,&vo,&vd,&vb,audioflag);
/* is there a video page flushed? If not, fetch one if possible */
videoflag=fetch_and_process_video(video,&videopage,&to,&td,videoflag);
/* no pages of either? Must be end of stream. */
if(!audioflag && !videoflag)break;
/* which is earlier; the end of the audio page or the end of the
video page? Flush the earlier to stream */
{
int audio_or_video=-1;
double audiotime=
audioflag?vorbis_granule_time(&vd,ogg_page_granulepos(&audiopage)):-1;
double videotime=
videoflag?theora_granule_time(&td,ogg_page_granulepos(&videopage)):-1;
if(!audioflag){
audio_or_video=1;
} else if(!videoflag) {
audio_or_video=0;
} else {
if(audiotime<videotime)
audio_or_video=0;
else
audio_or_video=1;
}
if(audio_or_video==1){
/* flush a video page */
video_bytesout+=fwrite(videopage.header,1,videopage.header_len,outfile);
video_bytesout+=fwrite(videopage.body,1,videopage.body_len,outfile);
videoflag=0;
timebase=videotime;
}else{
/* flush an audio page */
audio_bytesout+=fwrite(audiopage.header,1,audiopage.header_len,outfile);
audio_bytesout+=fwrite(audiopage.body,1,audiopage.body_len,outfile);
audioflag=0;
timebase=audiotime;
}
{
int hundredths=timebase*100-(long)timebase*100;
int seconds=(long)timebase%60;
int minutes=((long)timebase/60)%60;
int hours=(long)timebase/3600;
if(audio_or_video)
vkbps=rint(video_bytesout*8./timebase*.001);
else
akbps=rint(audio_bytesout*8./timebase*.001);
fprintf(stderr,
"\r %d:%02d:%02d.%02d audio: %dkbps video: %dkbps ",
hours,minutes,seconds,hundredths,akbps,vkbps);
}
}
}
/* clear out state */
if(audio){
ogg_stream_clear(&vo);
vorbis_block_clear(&vb);
vorbis_dsp_clear(&vd);
vorbis_comment_clear(&vc);
vorbis_info_clear(&vi);
}
if(video){
ogg_stream_clear(&to);
theora_clear(&td);
}
if(outfile && outfile!=stdout)fclose(outfile);
fprintf(stderr,"\r \ndone.\n\n");
#ifdef THEORA_PERF_DATA
# ifdef WIN32
QueryPerformanceCounter(&final_time);
elapsed_ticks = final_time.QuadPart - start_time.QuadPart;
ticks_per_second;
QueryPerformanceFrequency(&ticks_per_second);
elapsed_secs = elapsed_ticks / ticks_per_second.QuadPart;
elapsed_sec_mod = elapsed_ticks % ticks_per_second.QuadPart;
elapsed_secs_dbl = elapsed_secs;
elapsed_secs_dbl += ((double)elapsed_sec_mod / (double)ticks_per_second.QuadPart);
printf("Encode time = %lld ticks\n", elapsed_ticks);
printf("~%lld and %lld / %lld seconds\n", elapsed_secs, elapsed_sec_mod, ticks_per_second.QuadPart);
printf("~%Lf seconds\n", elapsed_secs_dbl);
# endif
#endif
return(0);
}
