int opus_tags_get_track_gain(const OpusTags *_tags,int *_gain_q8){
char **comments;
int ncomments;
int ci;
comments=_tags->user_comments;
ncomments=_tags->comments;
/*Look for the first valid R128_TRACK_GAIN tag and use that.*/
for(ci=0;ci<ncomments;ci++){
if(opus_tagncompare("R128_TRACK_GAIN",15,comments[ci])==0){
char *p;
opus_int32 gain_q8;
int negative;
p=comments[ci]+16;
negative=0;
if(*p=='-'){
negative=-1;
p++;
}
else if(*p=='+')p++;
gain_q8=0;
while(*p>='0'&&*p<='9'){
gain_q8=10*gain_q8+*p-'0';
if(gain_q8>32767-negative)break;
p++;
}
/*This didn't look like a signed 16-bit decimal integer.
Not a valid R128_TRACK_GAIN tag.*/
if(*p!='\0')continue;
*_gain_q8=(int)(gain_q8+negative^negative);
return 0;
}
}
return OP_FALSE;
}
int opus_tags_query_count(const OpusTags *_tags,const char *_tag){
char **user_comments;
int tag_len;
int found;
int ncomments;
int ci;
tag_len=strlen(_tag);
ncomments=_tags->comments;
user_comments=_tags->user_comments;
found=0;
for(ci=0;ci<ncomments;ci++){
if(!opus_tagncompare(_tag,tag_len,user_comments[ci]))found++;
}
return found;
}
const char *opus_tags_query(const OpusTags *_tags,const char *_tag,int _count){
char **user_comments;
int tag_len;
int found;
int ncomments;
int ci;
tag_len=strlen(_tag);
ncomments=_tags->comments;
user_comments=_tags->user_comments;
found=0;
for(ci=0;ci<ncomments;ci++){
if(!opus_tagncompare(_tag,tag_len,user_comments[ci])){
/*We return a pointer to the data, not a copy.*/
if(_count==found++)return user_comments[ci]+tag_len+1;
}
}
/*Didn't find anything.*/
return NULL;
}
int opus_tagcompare(const char *_tag_name,const char *_comment){
return opus_tagncompare(_tag_name,strlen(_tag_name),_comment);
}
void VoiceMessagesLoader::onLoad(AudioData *audio) {
bool started = false;
int32 audioindex = -1;
Loader *l = 0;
Loaders::iterator j = _loaders.end();
{
QMutexLocker lock(&voicemsgsMutex);
VoiceMessages *voice = audioVoice();
if (!voice) return;
for (int32 i = 0; i < AudioVoiceMsgSimultaneously; ++i) {
VoiceMessages::Msg &m(voice->_data[i]);
if (m.audio != audio || !m.loading) continue;
audioindex = i;
j = _loaders.find(audio);
if (j != _loaders.end() && (j.value()->fname != m.fname || j.value()->data.size() != m.data.size())) {
delete j.value();
_loaders.erase(j);
j = _loaders.end();
}
if (j == _loaders.end()) {
l = (j = _loaders.insert(audio, new Loader())).value();
l->fname = m.fname;
l->data = m.data;
int ret;
if (m.data.isEmpty()) {
l->file = op_open_file(m.fname.toUtf8().constData(), &ret);
} else {
l->file = op_open_memory((const unsigned char*)m.data.constData(), m.data.size(), &ret);
}
if (!l->file) {
LOG(("Audio Error: op_open_file failed for '%1', data size '%2', error code %3").arg(m.fname).arg(m.data.size()).arg(ret));
m.state = VoiceMessageStopped;
return loadError(j);
}
ogg_int64_t duration = op_pcm_total(l->file, -1);
if (duration < 0) {
LOG(("Audio Error: op_pcm_total failed to get full duration for '%1', data size '%2', error code %3").arg(m.fname).arg(m.data.size()).arg(duration));
m.state = VoiceMessageStopped;
return loadError(j);
}
m.duration = duration;
m.skipStart = 0;
m.skipEnd = duration;
m.position = 0;
m.started = 0;
started = true;
} else {
if (!m.skipEnd) continue;
l = j.value();
}
break;
}
}
if (j == _loaders.end()) {
LOG(("Audio Error: trying to load part of audio, that is not playing at the moment"));
emit error(audio);
return;
}
if (started) {
l->pcm_offset = op_pcm_tell(l->file);
l->pcm_print_offset = l->pcm_offset - AudioVoiceMsgFrequency;
}
bool finished = false;
DEBUG_LOG(("Audio Info: reading buffer for file '%1', data size '%2', current pcm_offset %3").arg(l->fname).arg(l->data.size()).arg(l->pcm_offset));
QByteArray result;
int64 samplesAdded = 0;
while (result.size() < AudioVoiceMsgBufferSize) {
opus_int16 pcm[AudioVoiceMsgFrequency * AudioVoiceMsgChannels];
int ret = op_read_stereo(l->file, pcm, sizeof(pcm) / sizeof(*pcm));
if (ret < 0) {
{
QMutexLocker lock(&voicemsgsMutex);
VoiceMessages *voice = audioVoice();
if (voice) {
VoiceMessages::Msg &m(voice->_data[audioindex]);
if (m.audio == audio) {
m.state = VoiceMessageStopped;
}
}
}
LOG(("Audio Error: op_read_stereo failed, error code %1").arg(ret));
return loadError(j);
}
int li = op_current_link(l->file);
if (li != l->prev_li) {
const OpusHead *head = op_head(l->file, li);
const OpusTags *tags = op_tags(l->file, li);
for (int32 ci = 0; ci < tags->comments; ++ci) {
const char *comment = tags->user_comments[ci];
if (opus_tagncompare("METADATA_BLOCK_PICTURE", 22, comment) == 0) {
OpusPictureTag pic;
int err = opus_picture_tag_parse(&pic, comment);
if (err >= 0) {
opus_picture_tag_clear(&pic);
}
}
}
if (!op_seekable(l->file)) {
l->pcm_offset = op_pcm_tell(l->file) - ret;
}
}
if (li != l->prev_li || l->pcm_offset >= l->pcm_print_offset + AudioVoiceMsgFrequency) {
l->pcm_print_offset = l->pcm_offset;
}
l->pcm_offset = op_pcm_tell(l->file);
if (!ret) {
DEBUG_LOG(("Audio Info: read completed"));
finished = true;
break;
}
result.append((const char*)pcm, sizeof(*pcm) * ret * AudioVoiceMsgChannels);
l->prev_li = li;
samplesAdded += ret;
{
QMutexLocker lock(&voicemsgsMutex);
VoiceMessages *voice = audioVoice();
if (!voice) return;
VoiceMessages::Msg &m(voice->_data[audioindex]);
if (m.audio != audio || !m.loading || m.fname != l->fname || m.data.size() != l->data.size()) {
LOG(("Audio Error: playing changed while loading"));
m.state = VoiceMessageStopped;
return loadError(j);
}
}
}
QMutexLocker lock(&voicemsgsMutex);
VoiceMessages *voice = audioVoice();
if (!voice) return;
VoiceMessages::Msg &m(voice->_data[audioindex]);
if (m.audio != audio || !m.loading || m.fname != l->fname || m.data.size() != l->data.size()) {
LOG(("Audio Error: playing changed while loading"));
m.state = VoiceMessageStopped;
return loadError(j);
}
if (started) {
if (m.source) {
alSourceStop(m.source);
for (int32 i = 0; i < 3; ++i) {
if (m.samplesCount[i]) {
alSourceUnqueueBuffers(m.source, 1, m.buffers + i);
m.samplesCount[i] = 0;
}
}
m.nextBuffer = 0;
}
}
if (samplesAdded) {
if (!m.source) {
alGenSources(1, &m.source);
alSourcef(m.source, AL_PITCH, 1.f);
alSourcef(m.source, AL_GAIN, 1.f);
alSource3f(m.source, AL_POSITION, 0, 0, 0);
alSource3f(m.source, AL_VELOCITY, 0, 0, 0);
alSourcei(m.source, AL_LOOPING, 0);
}
if (!m.buffers[m.nextBuffer]) alGenBuffers(3, m.buffers);
if (!_checkALError()) {
m.state = VoiceMessageStopped;
return loadError(j);
}
if (m.samplesCount[m.nextBuffer]) {
alSourceUnqueueBuffers(m.source, 1, m.buffers + m.nextBuffer);
m.skipStart += m.samplesCount[m.nextBuffer];
}
m.samplesCount[m.nextBuffer] = samplesAdded;
alBufferData(m.buffers[m.nextBuffer], AL_FORMAT_STEREO16, result.constData(), result.size(), AudioVoiceMsgFrequency);
alSourceQueueBuffers(m.source, 1, m.buffers + m.nextBuffer);
m.skipEnd -= samplesAdded;
m.nextBuffer = (m.nextBuffer + 1) % 3;
if (!_checkALError()) {
m.state = VoiceMessageStopped;
return loadError(j);
}
} else {
finished = true;
}
if (finished) {
m.skipEnd = 0;
m.duration = m.skipStart + m.samplesCount[0] + m.samplesCount[1] + m.samplesCount[2];
}
m.loading = false;
if (m.state == VoiceMessageResuming || m.state == VoiceMessagePlaying || m.state == VoiceMessageStarting) {
ALint state = AL_INITIAL;
alGetSourcei(m.source, AL_SOURCE_STATE, &state);
if (_checkALError()) {
if (state != AL_PLAYING) {
alSourcePlay(m.source);
emit needToCheck();
}
}
}
}