static struct tag *
modplug_stream_tag(struct input_stream *is)
{
ModPlugFile *f;
struct tag *ret = NULL;
GByteArray *bdatas;
char *title;
bdatas = mod_loadfile(NULL, is);
if (!bdatas)
return NULL;
f = ModPlug_Load(bdatas->data, bdatas->len);
g_byte_array_free(bdatas, TRUE);
if (f == NULL)
return NULL;
ret = tag_new();
ret->time = ModPlug_GetLength(f) / 1000;
title = g_strdup(ModPlug_GetName(f));
if (title)
tag_add_item(ret, TAG_TITLE, title);
g_free(title);
ModPlug_Unload(f);
return ret;
}
static bool
modplug_scan_stream(struct input_stream *is,
const struct tag_handler *handler, void *handler_ctx)
{
ModPlugFile *f;
GByteArray *bdatas;
bdatas = mod_loadfile(NULL, is);
if (!bdatas)
return false;
f = ModPlug_Load(bdatas->data, bdatas->len);
g_byte_array_free(bdatas, TRUE);
if (f == NULL)
return false;
tag_handler_invoke_duration(handler, handler_ctx,
ModPlug_GetLength(f) / 1000);
const char *title = ModPlug_GetName(f);
if (title != NULL)
tag_handler_invoke_tag(handler, handler_ctx,
TAG_TITLE, title);
ModPlug_Unload(f);
return true;
}
int mod_load(FAR struct mod_loadinfo_s *loadinfo)
{
int ret;
svdbg("loadinfo: %p\n", loadinfo);
DEBUGASSERT(loadinfo && loadinfo->filfd >= 0);
/* Load section headers into memory */
ret = mod_loadshdrs(loadinfo);
if (ret < 0)
{
sdbg("ERROR: mod_loadshdrs failed: %d\n", ret);
goto errout_with_buffers;
}
/* Determine total size to allocate */
mod_elfsize(loadinfo);
/* Allocate (and zero) memory for the ELF file. */
/* Allocate memory to hold the ELF image */
loadinfo->textalloc = (uintptr_t)kmm_zalloc(loadinfo->textsize + loadinfo->datasize);
if (!loadinfo->textalloc)
{
sdbg("ERROR: Failed to allocate memory for the module\n");
ret = -ENOMEM;
goto errout_with_buffers;
}
loadinfo->datastart = loadinfo->textalloc + loadinfo->textsize;
/* Load ELF section data into memory */
ret = mod_loadfile(loadinfo);
if (ret < 0)
{
sdbg("ERROR: mod_loadfile failed: %d\n", ret);
goto errout_with_buffers;
}
return OK;
/* Error exits */
errout_with_buffers:
mod_unload(loadinfo);
return ret;
}
static void
mod_decode(struct decoder *decoder, struct input_stream *is)
{
ModPlugFile *f;
ModPlug_Settings settings;
GByteArray *bdatas;
struct audio_format audio_format;
int ret;
char audio_buffer[MODPLUG_FRAME_SIZE];
enum decoder_command cmd = DECODE_COMMAND_NONE;
bdatas = mod_loadfile(decoder, is);
if (!bdatas) {
g_warning("could not load stream\n");
return;
}
ModPlug_GetSettings(&settings);
/* alter setting */
settings.mResamplingMode = MODPLUG_RESAMPLE_FIR; /* RESAMP */
settings.mChannels = 2;
settings.mBits = 16;
settings.mFrequency = 44100;
/* insert more setting changes here */
ModPlug_SetSettings(&settings);
f = ModPlug_Load(bdatas->data, bdatas->len);
g_byte_array_free(bdatas, TRUE);
if (!f) {
g_warning("could not decode stream\n");
return;
}
audio_format_init(&audio_format, 44100, SAMPLE_FORMAT_S16, 2);
assert(audio_format_valid(&audio_format));
decoder_initialized(decoder, &audio_format,
is->seekable, ModPlug_GetLength(f) / 1000.0);
do {
ret = ModPlug_Read(f, audio_buffer, MODPLUG_FRAME_SIZE);
if (ret <= 0)
break;
cmd = decoder_data(decoder, NULL,
audio_buffer, ret,
0);
if (cmd == DECODE_COMMAND_SEEK) {
float where = decoder_seek_where(decoder);
ModPlug_Seek(f, (int)(where * 1000.0));
decoder_command_finished(decoder);
}
} while (cmd != DECODE_COMMAND_STOP);
ModPlug_Unload(f);
}
