Update C sources, add new functions

This commit is contained in:
Milan Nikolic 2018-05-06 09:34:11 +02:00
parent e6a1abb290
commit a6d36a3699
98 changed files with 7964 additions and 2985 deletions

View file

@ -193,9 +193,7 @@
#undef __forceinline
#endif
#define __forceinline
#ifndef alloca
#define alloca __builtin_alloca
#endif
#elif !defined(_MSC_VER)
#if __GNUC__
#define __forceinline inline
@ -1660,6 +1658,8 @@ static int residue_decode(vorb *f, Codebook *book, float *target, int offset, in
return TRUE;
}
// n is 1/2 of the blocksize --
// specification: "Correct per-vector decode length is [n]/2"
static void decode_residue(vorb *f, float *residue_buffers[], int ch, int n, int rn, uint8 *do_not_decode)
{
int i,j,pass;
@ -1667,7 +1667,10 @@ static void decode_residue(vorb *f, float *residue_buffers[], int ch, int n, int
int rtype = f->residue_types[rn];
int c = r->classbook;
int classwords = f->codebooks[c].dimensions;
int n_read = r->end - r->begin;
unsigned int actual_size = rtype == 2 ? n*2 : n;
unsigned int limit_r_begin = (r->begin < actual_size ? r->begin : actual_size);
unsigned int limit_r_end = (r->end < actual_size ? r->end : actual_size);
int n_read = limit_r_end - limit_r_begin;
int part_read = n_read / r->part_size;
int temp_alloc_point = temp_alloc_save(f);
#ifndef STB_VORBIS_DIVIDES_IN_RESIDUE
@ -3009,7 +3012,7 @@ static int vorbis_decode_packet_rest(vorb *f, int *len, Mode *m, int left_start,
if (f->last_seg_which == f->end_seg_with_known_loc) {
// if we have a valid current loc, and this is final:
if (f->current_loc_valid && (f->page_flag & PAGEFLAG_last_page)) {
uint32 current_end = f->known_loc_for_packet - (n-right_end);
uint32 current_end = f->known_loc_for_packet;
// then let's infer the size of the (probably) short final frame
if (current_end < f->current_loc + (right_end-left_start)) {
if (current_end < f->current_loc) {
@ -3018,7 +3021,7 @@ static int vorbis_decode_packet_rest(vorb *f, int *len, Mode *m, int left_start,
} else {
*len = current_end - f->current_loc;
}
*len += left_start;
*len += left_start; // this doesn't seem right, but has no ill effect on my test files
if (*len > right_end) *len = right_end; // this should never happen
f->current_loc += *len;
return TRUE;
@ -3695,7 +3698,10 @@ static int start_decoder(vorb *f)
int i,max_part_read=0;
for (i=0; i < f->residue_count; ++i) {
Residue *r = f->residue_config + i;
int n_read = r->end - r->begin;
unsigned int actual_size = f->blocksize_1 / 2;
unsigned int limit_r_begin = r->begin < actual_size ? r->begin : actual_size;
unsigned int limit_r_end = r->end < actual_size ? r->end : actual_size;
int n_read = limit_r_end - limit_r_begin;
int part_read = n_read / r->part_size;
if (part_read > max_part_read)
max_part_read = part_read;
@ -3706,6 +3712,8 @@ static int start_decoder(vorb *f)
classify_mem = f->channels * (sizeof(void*) + max_part_read * sizeof(int *));
#endif
// maximum reasonable partition size is f->blocksize_1
f->temp_memory_required = classify_mem;
if (imdct_mem > f->temp_memory_required)
f->temp_memory_required = imdct_mem;
@ -4969,6 +4977,8 @@ int stb_vorbis_get_samples_float(stb_vorbis *f, int channels, float **buffer, in
#endif // STB_VORBIS_NO_PULLDATA_API
/* Version history
1.12 - 2017/11/21 - limit residue begin/end to blocksize/2 to avoid large temp allocs in bad/corrupt files
1.11 - 2017/07/23 - fix MinGW compilation
1.10 - 2017/03/03 - more robust seeking; fix negative ilog(); clear error in open_memory
1.09 - 2016/04/04 - back out 'avoid discarding last frame' fix from previous version
1.08 - 2016/04/02 - fixed multiple warnings; fix setup memory leaks;