Reuh/ctruLua
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Added ctr.mic, Added a function to get a µs counter value.

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Didn't test ctr.mic.
This commit is contained in:
Firew0lf 2016-01-05 19:41:25 +01:00
parent e7c9a60d61
commit ca22cf1558
3 changed files with 377 additions and 2 deletions
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50
source/audio.c
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@ -242,6 +242,55 @@ static int audio_load(lua_State *L) {
return 0;
}
/***
Load raw audio data from a string.
@function loadRaw
@tparam string data raw audio data
@tparam number rate sampling rate
@tparam string encoding audio encoding, can be `"PCM8"`, `"PCM16"` or `"ADPCM"`
@tparam[opt=1] number channels audio channels count
@treturn[1] audio the loaded audio object
@treturn[2] nil if a error happened
@treturn[2] string error message
*/
static int audio_loadRaw(lua_State *L) {
size_t dataSize;
char* data = (char*)luaL_checklstring(L, 1, &dataSize);
float rate = luaL_checkinteger(L, 2);
const char* argEncoding = luaL_checkstring(L, 3);
u32 channels = luaL_optinteger(L, 4, 1);
audio_userdata *audio = lua_newuserdata(L, sizeof(*audio));
luaL_getmetatable(L, "LAudio");
lua_setmetatable(L, -2);
audio->type = TYPE_WAV;
audio->rate = rate;
audio->channels = channels;
u8 sampleSize = 2; // default to 2
if (strcmp(argEncoding, "PCM8")) {
audio->encoding = NDSP_ENCODING_PCM8;
sampleSize = 1;
} else if (strcmp(argEncoding, "PCM16")) {
audio->encoding = NDSP_ENCODING_PCM16;
} else if (strcmp(argEncoding, "ADPCM")) {
audio->encoding = NDSP_ENCODING_ADPCM;
} else {
lua_pushnil(L);
lua_pushstring(L, "Wrong format");
return 2;
}
audio->nsamples = dataSize/sampleSize;
audio->size = dataSize;
audio->data = data;
audio->speed = 1.0;
return 1;
}
/***
Check if audio is currently playing on a channel.
@function playing
@ -817,6 +866,7 @@ static const struct luaL_Reg audio_object_methods[] = {
// Library functions
static const struct luaL_Reg audio_lib[] = {
{ "load", audio_load },
{ "loadRaw", audio_loadRaw },
{ "playing", audio_playing },
{ "mix", audio_mix },
{ "interpolation", audio_interpolation },