Reuh/ctruLua
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Added Tremor Ogg decoder, removed libvorbis from Makefile. OGG audio working perfectly.

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Tremor is extremly similar to libogg but only uses integers (and doesn't provide an encoder). The playing problem with libvorbis was probably a float-precision related issue.

No need for make build-all.
This commit is contained in:
Reuh 2015-12-29 17:25:34 +01:00
parent c053997f96
commit e39fcc6c7b
97 changed files with 16571 additions and 15 deletions
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16
source/audio.c
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@ -15,8 +15,8 @@ There are 24 audio channels available, numbered from 0 to 23.
#include <lua.h>
#include <lauxlib.h>
#include <vorbis/codec.h>
#include <vorbis/vorbisfile.h>
#include <ivorbiscodec.h>
#include <ivorbisfile.h>
// Audio object type
typedef enum {
@ -98,17 +98,13 @@ static int audio_load(lua_State *L) {
audio->type = TYPE_OGG;
// Load audio file
if (ov_fopen(path, &audio->vf) < 0) {
FILE *file = fopen(path, "rb");
if (ov_open(file, &audio->vf, NULL, 0) < 0) {
lua_pushnil(L);
lua_pushstring(L, "input does not appear to be a valid ogg vorbis file or doesn't exist");
return 2;
}
// Some Ogg Vorbis decoding parameters
bool bigendianp = false; // bigendianness
u8 word = 2; // word size; 1 or 2 (8bits/sample or 16bits/sample)
bool sgned = true; // signed data
// Decoding Ogg Vorbis bitstream
vorbis_info* vi = ov_info(&audio->vf, -1);
if (vi == NULL) luaL_error(L, "could not retrieve ogg audio stream informations");
@ -117,7 +113,7 @@ static int audio_load(lua_State *L) {
audio->channels = vi->channels;
audio->encoding = NDSP_ENCODING_PCM16;
audio->nsamples = ov_pcm_total(&audio->vf, -1);
audio->size = audio->nsamples * word;
audio->size = audio->nsamples * audio->channels * 2; // *2 because output is PCM16 (2 bytes/sample)
if (linearSpaceFree() < audio->size) luaL_error(L, "not enough linear memory available");
audio->data = linearAlloc(audio->size);
@ -127,7 +123,7 @@ static int audio_load(lua_State *L) {
int eof = 0;
int current_section;
while (!eof) {
long ret = ov_read(&audio->vf, &audio->data[offset], 4096, bigendianp, word, sgned, &current_section);
long ret = ov_read(&audio->vf, &audio->data[offset], 4096, &current_section);
if (ret == 0) {
eof = 1;