mirror of
https://github.com/badaix/snapcast.git
synced 2025-06-03 03:11:43 +02:00
code blocks
git-svn-id: svn://elaine/murooma/trunk@271 d8a302eb-03bc-478d-80e4-98257eca68ef
This commit is contained in:
(no author)
parent
2cf7855261
commit
16ef1ae634
53 changed files with 2074 additions and 1759 deletions
|
|
@ -7,183 +7,183 @@ using namespace std;
|
|||
|
||||
OggEncoder::OggEncoder(const SampleFormat& format) : Encoder(format), headerChunk(NULL)
|
||||
{
|
||||
init();
|
||||
lastGranulepos = -1;
|
||||
init();
|
||||
lastGranulepos = -1;
|
||||
}
|
||||
|
||||
|
||||
HeaderMessage* OggEncoder::getHeader()
|
||||
{
|
||||
return headerChunk;
|
||||
return headerChunk;
|
||||
}
|
||||
|
||||
|
||||
double OggEncoder::encode(PcmChunk* chunk)
|
||||
{
|
||||
double res = 0;
|
||||
if (tv_sec == 0)
|
||||
{
|
||||
tv_sec = chunk->timestamp.sec;
|
||||
tv_usec = chunk->timestamp.usec;
|
||||
}
|
||||
double res = 0;
|
||||
if (tv_sec == 0)
|
||||
{
|
||||
tv_sec = chunk->timestamp.sec;
|
||||
tv_usec = chunk->timestamp.usec;
|
||||
}
|
||||
//cout << "-> pcm: " << wireChunk->length << endl;
|
||||
int bytes = chunk->payloadSize / 4;
|
||||
float **buffer=vorbis_analysis_buffer(&vd, bytes);
|
||||
int bytes = chunk->payloadSize / 4;
|
||||
float **buffer=vorbis_analysis_buffer(&vd, bytes);
|
||||
|
||||
/* uninterleave samples */
|
||||
for(int i=0;i<bytes;i++)
|
||||
{
|
||||
buffer[0][i]=((chunk->payload[i*4+1]<<8)|
|
||||
(0x00ff&(int)chunk->payload[i*4]))/32768.f;
|
||||
buffer[1][i]=((chunk->payload[i*4+3]<<8)|
|
||||
(0x00ff&(int)chunk->payload[i*4+2]))/32768.f;
|
||||
}
|
||||
/* uninterleave samples */
|
||||
for(int i=0; i<bytes; i++)
|
||||
{
|
||||
buffer[0][i]=((chunk->payload[i*4+1]<<8)|
|
||||
(0x00ff&(int)chunk->payload[i*4]))/32768.f;
|
||||
buffer[1][i]=((chunk->payload[i*4+3]<<8)|
|
||||
(0x00ff&(int)chunk->payload[i*4+2]))/32768.f;
|
||||
}
|
||||
|
||||
/* tell the library how much we actually submitted */
|
||||
vorbis_analysis_wrote(&vd, bytes);
|
||||
/* tell the library how much we actually submitted */
|
||||
vorbis_analysis_wrote(&vd, bytes);
|
||||
|
||||
/* vorbis does some data preanalysis, then divvies up blocks for
|
||||
more involved (potentially parallel) processing. Get a single
|
||||
block for encoding now */
|
||||
size_t pos = 0;
|
||||
while(vorbis_analysis_blockout(&vd,&vb)==1)
|
||||
{
|
||||
/* analysis, assume we want to use bitrate management */
|
||||
vorbis_analysis(&vb,NULL);
|
||||
vorbis_bitrate_addblock(&vb);
|
||||
/* vorbis does some data preanalysis, then divvies up blocks for
|
||||
more involved (potentially parallel) processing. Get a single
|
||||
block for encoding now */
|
||||
size_t pos = 0;
|
||||
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);
|
||||
while(vorbis_bitrate_flushpacket(&vd,&op))
|
||||
{
|
||||
/* weld the packet into the bitstream */
|
||||
ogg_stream_packetin(&os,&op);
|
||||
|
||||
/* write out pages (if any) */
|
||||
while(true)
|
||||
{
|
||||
/* write out pages (if any) */
|
||||
while(true)
|
||||
{
|
||||
// int result = ogg_stream_pageout(&os,&og);
|
||||
int result = ogg_stream_flush(&os,&og);
|
||||
if (result == 0)
|
||||
break;
|
||||
res = true;
|
||||
int result = ogg_stream_flush(&os,&og);
|
||||
if (result == 0)
|
||||
break;
|
||||
res = true;
|
||||
|
||||
size_t nextLen = pos + og.header_len + og.body_len;
|
||||
if (chunk->payloadSize < nextLen)
|
||||
chunk->payload = (char*)realloc(chunk->payload, nextLen);
|
||||
size_t nextLen = pos + og.header_len + og.body_len;
|
||||
if (chunk->payloadSize < nextLen)
|
||||
chunk->payload = (char*)realloc(chunk->payload, nextLen);
|
||||
|
||||
memcpy(chunk->payload + pos, og.header, og.header_len);
|
||||
pos += og.header_len;
|
||||
memcpy(chunk->payload + pos, og.body, og.body_len);
|
||||
pos += og.body_len;
|
||||
}
|
||||
}
|
||||
}
|
||||
if (res)
|
||||
{
|
||||
if (lastGranulepos == -1)
|
||||
res = os.granulepos;
|
||||
else
|
||||
res = os.granulepos - lastGranulepos;
|
||||
res /= 48.;
|
||||
lastGranulepos = os.granulepos;
|
||||
chunk->payload = (char*)realloc(chunk->payload, pos);
|
||||
chunk->payloadSize = pos;
|
||||
tv_sec = 0;
|
||||
tv_usec = 0;
|
||||
}
|
||||
return res;
|
||||
memcpy(chunk->payload + pos, og.header, og.header_len);
|
||||
pos += og.header_len;
|
||||
memcpy(chunk->payload + pos, og.body, og.body_len);
|
||||
pos += og.body_len;
|
||||
}
|
||||
}
|
||||
}
|
||||
if (res)
|
||||
{
|
||||
if (lastGranulepos == -1)
|
||||
res = os.granulepos;
|
||||
else
|
||||
res = os.granulepos - lastGranulepos;
|
||||
res /= 48.;
|
||||
lastGranulepos = os.granulepos;
|
||||
chunk->payload = (char*)realloc(chunk->payload, pos);
|
||||
chunk->payloadSize = pos;
|
||||
tv_sec = 0;
|
||||
tv_usec = 0;
|
||||
}
|
||||
return res;
|
||||
}
|
||||
|
||||
|
||||
void OggEncoder::init()
|
||||
{
|
||||
/********** Encode setup ************/
|
||||
tv_sec = 0;
|
||||
tv_usec = 0;
|
||||
/********** Encode setup ************/
|
||||
tv_sec = 0;
|
||||
tv_usec = 0;
|
||||
|
||||
vorbis_info_init(&vi);
|
||||
vorbis_info_init(&vi);
|
||||
|
||||
/* choose an encoding mode. A few possibilities commented out, one
|
||||
actually used: */
|
||||
/* 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
|
||||
/*********************************************************************
|
||||
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);
|
||||
ret = vorbis_encode_init_vbr(&vi,2,44100,.4);
|
||||
|
||||
---------------------------------------------------------------------
|
||||
---------------------------------------------------------------------
|
||||
|
||||
Encoding using an average bitrate mode (ABR).
|
||||
example: 44kHz stereo coupled, average 128kbps VBR
|
||||
Encoding using an average bitrate mode (ABR).
|
||||
example: 44kHz stereo coupled, average 128kbps VBR
|
||||
|
||||
ret = vorbis_encode_init(&vi,2,44100,-1,128000,-1);
|
||||
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:
|
||||
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_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, sampleFormat.channels, sampleFormat.rate, 0.7);
|
||||
ret=vorbis_encode_init_vbr(&vi, sampleFormat.channels, sampleFormat.rate, 0.7);
|
||||
|
||||
/* 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') */
|
||||
/* 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);
|
||||
if(ret)exit(1);
|
||||
|
||||
/* add a comment */
|
||||
vorbis_comment_init(&vc);
|
||||
vorbis_comment_add_tag(&vc,"ENCODER","snapstream");
|
||||
/* add a comment */
|
||||
vorbis_comment_init(&vc);
|
||||
vorbis_comment_add_tag(&vc,"ENCODER","snapstream");
|
||||
|
||||
/* set up the analysis state and auxiliary encoding storage */
|
||||
vorbis_analysis_init(&vd,&vi);
|
||||
vorbis_block_init(&vd,&vb);
|
||||
/* 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());
|
||||
/* 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 */
|
||||
/* 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 */
|
||||
|
||||
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);
|
||||
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
|
||||
*/
|
||||
/* This ensures the actual
|
||||
* audio data will start on a new page, as per spec
|
||||
*/
|
||||
// while(!eos){
|
||||
size_t pos(0);
|
||||
headerChunk = new HeaderMessage();
|
||||
while (true)
|
||||
{
|
||||
int result=ogg_stream_flush(&os,&og);
|
||||
if (result == 0)
|
||||
break;
|
||||
headerChunk->payloadSize += og.header_len + og.body_len;
|
||||
headerChunk->payload = (char*)realloc(headerChunk->payload, headerChunk->payloadSize);
|
||||
cout << "HeadLen: " << og.header_len << ", bodyLen: " << og.body_len << ", result: " << result << "\n";
|
||||
memcpy(headerChunk->payload + pos, og.header, og.header_len);
|
||||
pos += og.header_len;
|
||||
memcpy(headerChunk->payload + pos, og.body, og.body_len);
|
||||
pos += og.body_len;
|
||||
}
|
||||
size_t pos(0);
|
||||
headerChunk = new HeaderMessage();
|
||||
while (true)
|
||||
{
|
||||
int result=ogg_stream_flush(&os,&og);
|
||||
if (result == 0)
|
||||
break;
|
||||
headerChunk->payloadSize += og.header_len + og.body_len;
|
||||
headerChunk->payload = (char*)realloc(headerChunk->payload, headerChunk->payloadSize);
|
||||
cout << "HeadLen: " << og.header_len << ", bodyLen: " << og.body_len << ", result: " << result << "\n";
|
||||
memcpy(headerChunk->payload + pos, og.header, og.header_len);
|
||||
pos += og.header_len;
|
||||
memcpy(headerChunk->payload + pos, og.body, og.body_len);
|
||||
pos += og.body_len;
|
||||
}
|
||||
|
||||
|
||||
// fwrite(og.header,1,og.header_len,stdout);
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue