mirror of
https://github.com/godotengine/godot.git
synced 2024-11-27 09:16:35 +08:00
562 lines
12 KiB
C++
562 lines
12 KiB
C++
#include "audio_stream_speex.h"
|
|
|
|
#include "os_support.h"
|
|
#include "os/os.h"
|
|
#define READ_CHUNK 1024
|
|
|
|
static _FORCE_INLINE_ uint16_t le_short(uint16_t s)
|
|
{
|
|
uint16_t ret=s;
|
|
#if 0 //def BIG_ENDIAN_ENABLED
|
|
ret = s>>8;
|
|
ret += s<<8;
|
|
#endif
|
|
return ret;
|
|
}
|
|
|
|
|
|
int AudioStreamPlaybackSpeex::mix(int16_t* p_buffer,int p_frames) {
|
|
|
|
|
|
|
|
//printf("update, loops %i, read ofs %i\n", (int)loops, read_ofs);
|
|
//printf("playing %i, paused %i\n", (int)playing, (int)paused);
|
|
|
|
if (!active || !playing || !data.size())
|
|
return 0;
|
|
|
|
/*
|
|
if (read_ofs >= data.size()) {
|
|
if (loops) {
|
|
reload();
|
|
++loop_count;
|
|
} else {
|
|
return;
|
|
};
|
|
};
|
|
*/
|
|
|
|
int todo = p_frames;
|
|
if (todo < page_size) {
|
|
return 0;
|
|
};
|
|
|
|
int eos = 0;
|
|
bool reloaded=false;
|
|
|
|
while (todo > page_size) {
|
|
|
|
int ret=0;
|
|
while ((todo>page_size && packets_available && !eos) || (ret = ogg_sync_pageout(&oy, &og))==1) {
|
|
|
|
if (!packets_available) {
|
|
/*Add page to the bitstream*/
|
|
ogg_stream_pagein(&os, &og);
|
|
page_granule = ogg_page_granulepos(&og);
|
|
page_nb_packets = ogg_page_packets(&og);
|
|
packet_no=0;
|
|
if (page_granule>0 && frame_size)
|
|
{
|
|
skip_samples = page_nb_packets*frame_size*nframes - (page_granule-last_granule);
|
|
if (ogg_page_eos(&og))
|
|
skip_samples = -skip_samples;
|
|
/*else if (!ogg_page_bos(&og))
|
|
skip_samples = 0;*/
|
|
} else
|
|
{
|
|
skip_samples = 0;
|
|
}
|
|
|
|
|
|
last_granule = page_granule;
|
|
packets_available=true;
|
|
}
|
|
/*Extract all available packets*/
|
|
//int packet_no=0;
|
|
while (todo > page_size && !eos) {
|
|
|
|
if (ogg_stream_packetout(&os, &op)!=1) {
|
|
packets_available=false;
|
|
break;
|
|
}
|
|
|
|
packet_no++;
|
|
|
|
|
|
/*End of stream condition*/
|
|
if (op.e_o_s)
|
|
eos=1;
|
|
|
|
/*Copy Ogg packet to Speex bitstream*/
|
|
speex_bits_read_from(&bits, (char*)op.packet, op.bytes);
|
|
|
|
|
|
for (int j=0;j!=nframes;j++)
|
|
{
|
|
|
|
int16_t* out = p_buffer;
|
|
|
|
int ret;
|
|
/*Decode frame*/
|
|
ret = speex_decode_int(st, &bits, out);
|
|
|
|
/*for (i=0;i<frame_size*channels;i++)
|
|
printf ("%d\n", (int)output[i]);*/
|
|
|
|
if (ret==-1) {
|
|
printf("decode returned -1\n");
|
|
break;
|
|
};
|
|
if (ret==-2)
|
|
{
|
|
OS::get_singleton()->printerr( "Decoding error: corrupted stream?\n");
|
|
break;
|
|
}
|
|
if (speex_bits_remaining(&bits)<0)
|
|
{
|
|
OS::get_singleton()->printerr( "Decoding overflow: corrupted stream?\n");
|
|
break;
|
|
}
|
|
//if (channels==2)
|
|
// speex_decode_stereo_int(output, frame_size, &stereo);
|
|
|
|
|
|
/*Convert to short and save to output file*/
|
|
for (int i=0;i<frame_size*stream_channels;i++) {
|
|
out[i]=le_short(out[i]);
|
|
}
|
|
|
|
|
|
{
|
|
|
|
int frame_offset = 0;
|
|
int new_frame_size = frame_size;
|
|
|
|
/*printf ("packet %d %d\n", packet_no, skip_samples);*/
|
|
if (packet_no == 1 && j==0 && skip_samples > 0)
|
|
{
|
|
/*printf ("chopping first packet\n");*/
|
|
new_frame_size -= skip_samples;
|
|
frame_offset = skip_samples;
|
|
}
|
|
if (packet_no == page_nb_packets && skip_samples < 0)
|
|
{
|
|
int packet_length = nframes*frame_size+skip_samples;
|
|
new_frame_size = packet_length - j*frame_size;
|
|
if (new_frame_size<0)
|
|
new_frame_size = 0;
|
|
if (new_frame_size>frame_size)
|
|
new_frame_size = frame_size;
|
|
/*printf ("chopping end: %d %d %d\n", new_frame_size, packet_length, packet_no);*/
|
|
}
|
|
|
|
|
|
p_buffer+=new_frame_size*stream_channels;
|
|
todo-=new_frame_size;
|
|
}
|
|
}
|
|
|
|
};
|
|
};
|
|
//todo = get_todo();
|
|
|
|
//todo is still greater than page size, can write more
|
|
if (todo > page_size || eos) {
|
|
if (read_ofs < data.size()) {
|
|
|
|
//char *buf;
|
|
int nb_read = MIN(data.size() - read_ofs, READ_CHUNK);
|
|
|
|
/*Get the ogg buffer for writing*/
|
|
char* ogg_dst = ogg_sync_buffer(&oy, nb_read);
|
|
/*Read bitstream from input file*/
|
|
copymem(ogg_dst, &data[read_ofs], nb_read);
|
|
read_ofs += nb_read;
|
|
ogg_sync_wrote(&oy, nb_read);
|
|
} else {
|
|
if (loops) {
|
|
reload();
|
|
++loop_count;
|
|
//break;
|
|
} else {
|
|
playing=false;
|
|
unload();
|
|
break;
|
|
};
|
|
}
|
|
};
|
|
};
|
|
|
|
return p_frames-todo;
|
|
};
|
|
|
|
|
|
void AudioStreamPlaybackSpeex::unload() {
|
|
|
|
|
|
|
|
if (!active) return;
|
|
|
|
speex_bits_destroy(&bits);
|
|
if (st)
|
|
speex_decoder_destroy(st);
|
|
|
|
ogg_sync_clear(&oy);
|
|
active = false;
|
|
//data.resize(0);
|
|
st = NULL;
|
|
|
|
frame_size = 0;
|
|
page_size = 0;
|
|
loop_count = 0;
|
|
}
|
|
|
|
void *AudioStreamPlaybackSpeex::process_header(ogg_packet *op, int *frame_size, int *rate, int *nframes, int *channels, int *extra_headers) {
|
|
|
|
void *st;
|
|
SpeexHeader *header;
|
|
int modeID;
|
|
SpeexCallback callback;
|
|
|
|
header = speex_packet_to_header((char*)op->packet, op->bytes);
|
|
if (!header)
|
|
{
|
|
OS::get_singleton()->printerr( "Cannot read header\n");
|
|
return NULL;
|
|
}
|
|
if (header->mode >= SPEEX_NB_MODES)
|
|
{
|
|
OS::get_singleton()->printerr( "Mode number %d does not (yet/any longer) exist in this version\n",
|
|
header->mode);
|
|
return NULL;
|
|
}
|
|
|
|
modeID = header->mode;
|
|
|
|
const SpeexMode *mode = speex_lib_get_mode (modeID);
|
|
|
|
if (header->speex_version_id > 1)
|
|
{
|
|
OS::get_singleton()->printerr( "This file was encoded with Speex bit-stream version %d, which I don't know how to decode\n", header->speex_version_id);
|
|
return NULL;
|
|
}
|
|
|
|
if (mode->bitstream_version < header->mode_bitstream_version)
|
|
{
|
|
OS::get_singleton()->printerr( "The file was encoded with a newer version of Speex. You need to upgrade in order to play it.\n");
|
|
return NULL;
|
|
}
|
|
if (mode->bitstream_version > header->mode_bitstream_version)
|
|
{
|
|
OS::get_singleton()->printerr( "The file was encoded with an older version of Speex. You would need to downgrade the version in order to play it.\n");
|
|
return NULL;
|
|
}
|
|
|
|
void* state = speex_decoder_init(mode);
|
|
if (!state)
|
|
{
|
|
OS::get_singleton()->printerr( "Decoder initialization failed.\n");
|
|
return NULL;
|
|
}
|
|
//speex_decoder_ctl(state, SPEEX_SET_ENH, &enh_enabled);
|
|
speex_decoder_ctl(state, SPEEX_GET_FRAME_SIZE, frame_size);
|
|
|
|
if (!*rate)
|
|
*rate = header->rate;
|
|
|
|
speex_decoder_ctl(state, SPEEX_SET_SAMPLING_RATE, rate);
|
|
|
|
*nframes = header->frames_per_packet;
|
|
|
|
*channels = header->nb_channels;
|
|
|
|
if (*channels!=1) {
|
|
OS::get_singleton()->printerr("Only MONO speex streams supported\n");
|
|
return NULL;
|
|
}
|
|
|
|
*extra_headers = header->extra_headers;
|
|
|
|
speex_free(header);
|
|
return state;
|
|
}
|
|
|
|
|
|
|
|
void AudioStreamPlaybackSpeex::reload() {
|
|
|
|
|
|
|
|
if (active)
|
|
unload();
|
|
|
|
if (!data.size())
|
|
return;
|
|
|
|
ogg_sync_init(&oy);
|
|
speex_bits_init(&bits);
|
|
|
|
read_ofs = 0;
|
|
// char *buf;
|
|
|
|
int packet_count = 0;
|
|
int extra_headers = 0;
|
|
int stream_init = 0;
|
|
|
|
page_granule=0;
|
|
last_granule=0;
|
|
skip_samples=0;
|
|
page_nb_packets=0;
|
|
packets_available=false;
|
|
packet_no=0;
|
|
|
|
int eos = 0;
|
|
|
|
do {
|
|
|
|
/*Get the ogg buffer for writing*/
|
|
int nb_read = MIN(data.size() - read_ofs, READ_CHUNK);
|
|
char* ogg_dst = ogg_sync_buffer(&oy, nb_read);
|
|
/*Read bitstream from input file*/
|
|
copymem(ogg_dst, &data[read_ofs], nb_read);
|
|
read_ofs += nb_read;
|
|
ogg_sync_wrote(&oy, nb_read);
|
|
|
|
/*Loop for all complete pages we got (most likely only one)*/
|
|
while (ogg_sync_pageout(&oy, &og)==1) {
|
|
|
|
int packet_no;
|
|
if (stream_init == 0) {
|
|
ogg_stream_init(&os, ogg_page_serialno(&og));
|
|
stream_init = 1;
|
|
}
|
|
/*Add page to the bitstream*/
|
|
ogg_stream_pagein(&os, &og);
|
|
page_granule = ogg_page_granulepos(&og);
|
|
page_nb_packets = ogg_page_packets(&og);
|
|
if (page_granule>0 && frame_size)
|
|
{
|
|
skip_samples = page_nb_packets*frame_size*nframes - (page_granule-last_granule);
|
|
if (ogg_page_eos(&og))
|
|
skip_samples = -skip_samples;
|
|
/*else if (!ogg_page_bos(&og))
|
|
skip_samples = 0;*/
|
|
} else
|
|
{
|
|
skip_samples = 0;
|
|
}
|
|
|
|
|
|
last_granule = page_granule;
|
|
/*Extract all available packets*/
|
|
packet_no=0;
|
|
while (!eos && ogg_stream_packetout(&os, &op)==1)
|
|
{
|
|
/*If first packet, process as Speex header*/
|
|
if (packet_count==0)
|
|
{
|
|
int rate = 0;
|
|
int channels;
|
|
st = process_header(&op, &frame_size, &rate, &nframes, &channels, &extra_headers);
|
|
if (!nframes)
|
|
nframes=1;
|
|
if (!st) {
|
|
unload();
|
|
return;
|
|
};
|
|
|
|
page_size = nframes * frame_size;
|
|
stream_srate=rate;
|
|
stream_channels=channels;
|
|
stream_minbuff_size=page_size;
|
|
|
|
|
|
} else if (packet_count==1)
|
|
{
|
|
} else if (packet_count<=1+extra_headers)
|
|
{
|
|
/* Ignore extra headers */
|
|
};
|
|
};
|
|
++packet_count;
|
|
};
|
|
|
|
} while (packet_count <= extra_headers);
|
|
|
|
active=true;
|
|
|
|
}
|
|
|
|
void AudioStreamPlaybackSpeex::_bind_methods() {
|
|
|
|
//ObjectTypeDB::bind_method(_MD("set_file","file"),&AudioStreamPlaybackSpeex::set_file);
|
|
// ObjectTypeDB::bind_method(_MD("get_file"),&AudioStreamPlaybackSpeex::get_file);
|
|
|
|
ObjectTypeDB::bind_method(_MD("_set_bundled"),&AudioStreamPlaybackSpeex::_set_bundled);
|
|
ObjectTypeDB::bind_method(_MD("_get_bundled"),&AudioStreamPlaybackSpeex::_get_bundled);
|
|
|
|
ADD_PROPERTY( PropertyInfo(Variant::DICTIONARY,"_bundled",PROPERTY_HINT_NONE,"",PROPERTY_USAGE_BUNDLE),_SCS("_set_bundled"),_SCS("_get_bundled"));
|
|
//ADD_PROPERTY( PropertyInfo(Variant::STRING,"file",PROPERTY_HINT_FILE,"*.spx"),_SCS("set_file"),_SCS("get_file"));
|
|
};
|
|
|
|
void AudioStreamPlaybackSpeex::_set_bundled(const Dictionary& dict) {
|
|
|
|
ERR_FAIL_COND( !dict.has("filename"));
|
|
ERR_FAIL_COND( !dict.has("data"));
|
|
|
|
filename = dict["filename"];
|
|
data = dict["data"];
|
|
};
|
|
|
|
Dictionary AudioStreamPlaybackSpeex::_get_bundled() const {
|
|
|
|
Dictionary d;
|
|
d["filename"] = filename;
|
|
d["data"] = data;
|
|
return d;
|
|
};
|
|
|
|
|
|
|
|
void AudioStreamPlaybackSpeex::set_data(const Vector<uint8_t>& p_data) {
|
|
|
|
data=p_data;
|
|
reload();
|
|
}
|
|
|
|
|
|
void AudioStreamPlaybackSpeex::play(float p_from_pos) {
|
|
|
|
|
|
|
|
reload();
|
|
if (!active)
|
|
return;
|
|
playing = true;
|
|
|
|
}
|
|
void AudioStreamPlaybackSpeex::stop(){
|
|
|
|
|
|
unload();
|
|
playing = false;
|
|
|
|
}
|
|
bool AudioStreamPlaybackSpeex::is_playing() const{
|
|
|
|
return playing;
|
|
}
|
|
|
|
|
|
void AudioStreamPlaybackSpeex::set_loop(bool p_enable){
|
|
|
|
loops = p_enable;
|
|
}
|
|
bool AudioStreamPlaybackSpeex::has_loop() const{
|
|
|
|
return loops;
|
|
}
|
|
|
|
float AudioStreamPlaybackSpeex::get_length() const{
|
|
|
|
return 0;
|
|
}
|
|
|
|
String AudioStreamPlaybackSpeex::get_stream_name() const{
|
|
|
|
return "";
|
|
}
|
|
|
|
int AudioStreamPlaybackSpeex::get_loop_count() const{
|
|
|
|
return 0;
|
|
}
|
|
|
|
float AudioStreamPlaybackSpeex::get_pos() const{
|
|
|
|
return 0;
|
|
}
|
|
void AudioStreamPlaybackSpeex::seek_pos(float p_time){
|
|
|
|
|
|
};
|
|
|
|
|
|
|
|
AudioStreamPlaybackSpeex::AudioStreamPlaybackSpeex() {
|
|
|
|
active=false;
|
|
st = NULL;
|
|
stream_channels=1;
|
|
stream_srate=1;
|
|
stream_minbuff_size=1;
|
|
playing=false;
|
|
|
|
|
|
}
|
|
|
|
AudioStreamPlaybackSpeex::~AudioStreamPlaybackSpeex() {
|
|
|
|
unload();
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
////////////////////////////////////////
|
|
|
|
|
|
|
|
void AudioStreamSpeex::set_file(const String& p_file) {
|
|
|
|
if (this->file == p_file)
|
|
return;
|
|
|
|
this->file=p_file;
|
|
|
|
if (p_file == "") {
|
|
data.resize(0);
|
|
return;
|
|
};
|
|
|
|
Error err;
|
|
FileAccess* file = FileAccess::open(p_file, FileAccess::READ,&err);
|
|
if (err != OK) {
|
|
data.resize(0);
|
|
};
|
|
ERR_FAIL_COND(err != OK);
|
|
|
|
this->file = p_file;
|
|
data.resize(file->get_len());
|
|
int read = file->get_buffer(&data[0], data.size());
|
|
memdelete(file);
|
|
|
|
}
|
|
|
|
RES ResourceFormatLoaderAudioStreamSpeex::load(const String &p_path, const String& p_original_path, Error *r_error) {
|
|
|
|
if (r_error)
|
|
*r_error=OK;
|
|
|
|
AudioStreamSpeex *stream = memnew(AudioStreamSpeex);
|
|
stream->set_file(p_path);
|
|
return Ref<AudioStreamSpeex>(stream);
|
|
}
|
|
|
|
void ResourceFormatLoaderAudioStreamSpeex::get_recognized_extensions(List<String> *p_extensions) const {
|
|
|
|
p_extensions->push_back("spx");
|
|
}
|
|
bool ResourceFormatLoaderAudioStreamSpeex::handles_type(const String& p_type) const {
|
|
|
|
return (p_type=="AudioStream" || p_type=="AudioStreamSpeex");
|
|
}
|
|
|
|
String ResourceFormatLoaderAudioStreamSpeex::get_resource_type(const String &p_path) const {
|
|
|
|
if (p_path.extension().to_lower()=="spx")
|
|
return "AudioStreamSpeex";
|
|
return "";
|
|
}
|