LIBOPENMPT_MODPLUG_API ModPlugFile* ModPlug_Load(const void* data, int size)
{
ModPlugFile* file = malloc(sizeof(ModPlugFile));
if(!file) return NULL;
memset(file,0,sizeof(ModPlugFile));
memcpy(&file->settings,&globalsettings,sizeof(ModPlug_Settings));
file->mod = openmpt_module_create_from_memory(data,size,NULL,NULL,NULL);
if(!file->mod){
free(file);
return NULL;
}
file->buf = malloc(BUFFER_COUNT*sizeof(signed short)*4);
if(!file->buf){
openmpt_module_destroy(file->mod);
free(file);
return NULL;
}
openmpt_module_set_repeat_count(file->mod,file->settings.mLoopCount);
file->name = openmpt_module_get_metadata(file->mod,"title");
file->message = openmpt_module_get_metadata(file->mod,"message");
#ifndef LIBOPENMPT_MODPLUG_0_8_7
openmpt_module_set_render_param(file->mod,OPENMPT_MODULE_RENDER_STEREOSEPARATION_PERCENT,file->settings.mStereoSeparation*100/128);
#endif
openmpt_module_set_render_param(file->mod,OPENMPT_MODULE_RENDER_INTERPOLATIONFILTER_LENGTH,modplugresamplingmode_to_filterlength(file->settings.mResamplingMode));
return file;
}
MPTWrap::MPTWrap(QIODevice *device)
{
mod = openmpt_module_create(callbacks, device, openmpt_log_func_silent, nullptr, nullptr);
if(mod == nullptr) throw InvalidFile();
openmpt_module_select_subsong(mod, -1);
duration_ = openmpt_module_get_duration_seconds(mod) * 1000;
title_ = copystr(openmpt_module_get_metadata(mod, "title"));
format_ = copystr(openmpt_module_get_metadata(mod, "type_long"));
pattern_count_ = openmpt_module_get_num_patterns(mod);
instrument_count_ = openmpt_module_get_num_instruments(mod);
sample_count_ = openmpt_module_get_num_samples(mod);
channel_count_ = openmpt_module_get_num_channels(mod);
for(int i = 0; i < openmpt_module_get_num_instruments(mod); i++)
{
instruments_.push_back(copystr(openmpt_module_get_instrument_name(mod, i)));
}
for(int i = 0; i < openmpt_module_get_num_samples(mod); i++)
{
samples_.push_back(copystr(openmpt_module_get_sample_name(mod, i)));
}
comment_ = copystr(openmpt_module_get_metadata(mod, "message_raw"));
}
static int read_header_openmpt(AVFormatContext *s)
{
AVStream *st;
OpenMPTContext *openmpt = s->priv_data;
int64_t size;
char *buf;
#if OPENMPT_API_VERSION_AT_LEAST(0,3,0)
int error;
#endif
int ret;
size = avio_size(s->pb);
if (size <= 0)
return AVERROR_INVALIDDATA;
buf = av_malloc(size);
if (!buf)
return AVERROR(ENOMEM);
size = avio_read(s->pb, buf, size);
if (size < 0) {
av_log(s, AV_LOG_ERROR, "Reading input buffer failed.\n");
av_freep(&buf);
return size;
}
#if OPENMPT_API_VERSION_AT_LEAST(0,3,0)
error = OPENMPT_ERROR_OK;
openmpt->module = openmpt_module_create_from_memory2(buf, size, openmpt_logfunc, s, NULL, NULL, &error, NULL, NULL);
av_freep(&buf);
if (!openmpt->module) {
if (error == OPENMPT_ERROR_OUT_OF_MEMORY)
return AVERROR(ENOMEM);
else if (error >= OPENMPT_ERROR_GENERAL)
return AVERROR_INVALIDDATA;
else
return AVERROR_UNKNOWN;
}
#else
openmpt->module = openmpt_module_create_from_memory(buf, size, openmpt_logfunc, s, NULL);
av_freep(&buf);
if (!openmpt->module)
return AVERROR_INVALIDDATA;
#endif
openmpt->channels = av_get_channel_layout_nb_channels(openmpt->layout);
if (openmpt->subsong >= openmpt_module_get_num_subsongs(openmpt->module)) {
openmpt_module_destroy(openmpt->module);
av_log(s, AV_LOG_ERROR, "Invalid subsong index: %d\n", openmpt->subsong);
return AVERROR(EINVAL);
}
if (openmpt->subsong != -2) {
if (openmpt->subsong >= 0) {
av_dict_set_int(&s->metadata, "track", openmpt->subsong + 1, 0);
}
ret = openmpt_module_select_subsong(openmpt->module, openmpt->subsong);
if (!ret){
openmpt_module_destroy(openmpt->module);
av_log(s, AV_LOG_ERROR, "Could not select requested subsong: %d", openmpt->subsong);
return AVERROR(EINVAL);
}
}
openmpt->duration = openmpt_module_get_duration_seconds(openmpt->module);
add_meta(s, "artist", openmpt_module_get_metadata(openmpt->module, "artist"));
add_meta(s, "title", openmpt_module_get_metadata(openmpt->module, "title"));
add_meta(s, "encoder", openmpt_module_get_metadata(openmpt->module, "tracker"));
add_meta(s, "comment", openmpt_module_get_metadata(openmpt->module, "message"));
add_meta(s, "date", openmpt_module_get_metadata(openmpt->module, "date"));
st = avformat_new_stream(s, NULL);
if (!st) {
openmpt_module_destroy(openmpt->module);
openmpt->module = NULL;
return AVERROR(ENOMEM);
}
avpriv_set_pts_info(st, 64, 1, AV_TIME_BASE);
st->duration = llrint(openmpt->duration*AV_TIME_BASE);
st->codecpar->codec_type = AVMEDIA_TYPE_AUDIO;
st->codecpar->codec_id = AV_NE(AV_CODEC_ID_PCM_F32BE, AV_CODEC_ID_PCM_F32LE);
st->codecpar->channels = openmpt->channels;
st->codecpar->sample_rate = openmpt->sample_rate;
return 0;
}
