mirror of https://git.ffmpeg.org/ffmpeg.git
64bit fixes for the tta decoder, sizeof(long) is 8 on amd64, 4 on x86, the patch
basicly just do a s/long/int32_t/. Patch tested on amd64 and x86. Originally committed as revision 5072 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Benjamin Larsson
parent
e5867e4d50
commit
79a32e3b95
|
|
@ -41,7 +41,7 @@ typedef struct TTAContext {
|
|||
int flags, channels, bps, is_float, data_length;
|
||||
int frame_length, last_frame_length, total_frames;
|
||||
|
||||
long *decode_buffer;
|
||||
int32_t *decode_buffer;
|
||||
} TTAContext;
|
||||
|
||||
#if 0
|
||||
|
|
@ -61,7 +61,7 @@ static inline int shift_16(int i)
|
|||
return 0x80000000; // 16 << 27
|
||||
}
|
||||
#else
|
||||
static const unsigned long shift_1[] = {
|
||||
static const uint32_t shift_1[] = {
|
||||
0x00000001, 0x00000002, 0x00000004, 0x00000008,
|
||||
0x00000010, 0x00000020, 0x00000040, 0x00000080,
|
||||
0x00000100, 0x00000200, 0x00000400, 0x00000800,
|
||||
|
|
@ -74,25 +74,25 @@ static const unsigned long shift_1[] = {
|
|||
0x80000000, 0x80000000, 0x80000000, 0x80000000
|
||||
};
|
||||
|
||||
static const unsigned long *shift_16 = shift_1 + 4;
|
||||
static const uint32_t *shift_16 = shift_1 + 4;
|
||||
#endif
|
||||
|
||||
#define MAX_ORDER 16
|
||||
typedef struct TTAFilter {
|
||||
long shift, round, error, mode;
|
||||
long qm[MAX_ORDER];
|
||||
long dx[MAX_ORDER];
|
||||
long dl[MAX_ORDER];
|
||||
int32_t shift, round, error, mode;
|
||||
int32_t qm[MAX_ORDER];
|
||||
int32_t dx[MAX_ORDER];
|
||||
int32_t dl[MAX_ORDER];
|
||||
} TTAFilter;
|
||||
|
||||
static long ttafilter_configs[4][2] = {
|
||||
static int32_t ttafilter_configs[4][2] = {
|
||||
{10, 1},
|
||||
{9, 1},
|
||||
{10, 1},
|
||||
{12, 0}
|
||||
};
|
||||
|
||||
static void ttafilter_init(TTAFilter *c, long shift, long mode) {
|
||||
static void ttafilter_init(TTAFilter *c, int32_t shift, int32_t mode) {
|
||||
memset(c, 0, sizeof(TTAFilter));
|
||||
c->shift = shift;
|
||||
c->round = shift_1[shift-1];
|
||||
|
|
@ -101,7 +101,7 @@ static void ttafilter_init(TTAFilter *c, long shift, long mode) {
|
|||
}
|
||||
|
||||
// FIXME: copy paste from original
|
||||
static inline void memshl(register long *a, register long *b) {
|
||||
static inline void memshl(register int32_t *a, register int32_t *b) {
|
||||
*a++ = *b++;
|
||||
*a++ = *b++;
|
||||
*a++ = *b++;
|
||||
|
|
@ -114,8 +114,8 @@ static inline void memshl(register long *a, register long *b) {
|
|||
|
||||
// FIXME: copy paste from original
|
||||
// mode=1 encoder, mode=0 decoder
|
||||
static inline void ttafilter_process(TTAFilter *c, long *in, long mode) {
|
||||
register long *dl = c->dl, *qm = c->qm, *dx = c->dx, sum = c->round;
|
||||
static inline void ttafilter_process(TTAFilter *c, int32_t *in, int32_t mode) {
|
||||
register int32_t *dl = c->dl, *qm = c->qm, *dx = c->dx, sum = c->round;
|
||||
|
||||
if (!c->error) {
|
||||
sum += *dl++ * *qm, qm++;
|
||||
|
|
@ -174,10 +174,10 @@ static inline void ttafilter_process(TTAFilter *c, long *in, long mode) {
|
|||
}
|
||||
|
||||
typedef struct TTARice {
|
||||
unsigned long k0, k1, sum0, sum1;
|
||||
uint32_t k0, k1, sum0, sum1;
|
||||
} TTARice;
|
||||
|
||||
static void rice_init(TTARice *c, unsigned long k0, unsigned long k1)
|
||||
static void rice_init(TTARice *c, uint32_t k0, uint32_t k1)
|
||||
{
|
||||
c->k0 = k0;
|
||||
c->k1 = k1;
|
||||
|
|
@ -276,7 +276,7 @@ static int tta_decode_init(AVCodecContext * avctx)
|
|||
skip_bits(&s->gb, 32);
|
||||
skip_bits(&s->gb, 32); // CRC32 of seektable
|
||||
|
||||
s->decode_buffer = av_mallocz(sizeof(long)*s->frame_length*s->channels);
|
||||
s->decode_buffer = av_mallocz(sizeof(int32_t)*s->frame_length*s->channels);
|
||||
} else {
|
||||
av_log(avctx, AV_LOG_ERROR, "Wrong extradata present\n");
|
||||
return -1;
|
||||
|
|
@ -294,11 +294,11 @@ static int tta_decode_frame(AVCodecContext *avctx,
|
|||
|
||||
init_get_bits(&s->gb, buf, buf_size*8);
|
||||
{
|
||||
long predictors[s->channels];
|
||||
int32_t predictors[s->channels];
|
||||
TTAFilter filters[s->channels];
|
||||
TTARice rices[s->channels];
|
||||
int cur_chan = 0, framelen = s->frame_length;
|
||||
long *p;
|
||||
int32_t *p;
|
||||
|
||||
// FIXME: seeking
|
||||
s->total_frames--;
|
||||
|
|
@ -313,11 +313,11 @@ static int tta_decode_frame(AVCodecContext *avctx,
|
|||
}
|
||||
|
||||
for (p = s->decode_buffer; p < s->decode_buffer + (framelen * s->channels); p++) {
|
||||
long *predictor = &(predictors[cur_chan]);
|
||||
int32_t *predictor = &(predictors[cur_chan]);
|
||||
TTAFilter *filter = &(filters[cur_chan]);
|
||||
TTARice *rice = &(rices[cur_chan]);
|
||||
unsigned long unary, depth, k;
|
||||
long value;
|
||||
uint32_t unary, depth, k;
|
||||
int32_t value;
|
||||
|
||||
unary = tta_get_unary(&s->gb);
|
||||
|
||||
|
|
@ -360,7 +360,7 @@ static int tta_decode_frame(AVCodecContext *avctx,
|
|||
ttafilter_process(filter, p, 0);
|
||||
|
||||
// fixed order prediction
|
||||
#define PRED(x, k) (long)((((uint64_t)x << k) - x) >> k)
|
||||
#define PRED(x, k) (int32_t)((((uint64_t)x << k) - x) >> k)
|
||||
switch (s->bps) {
|
||||
case 1: *p += PRED(*predictor, 4); break;
|
||||
case 2:
|
||||
|
|
@ -372,9 +372,9 @@ static int tta_decode_frame(AVCodecContext *avctx,
|
|||
#if 0
|
||||
// extract 32bit float from last two int samples
|
||||
if (s->is_float && ((p - data) & 1)) {
|
||||
unsigned long neg = *p & 0x80000000;
|
||||
unsigned long hi = *(p - 1);
|
||||
unsigned long lo = abs(*p) - 1;
|
||||
uint32_t neg = *p & 0x80000000;
|
||||
uint32_t hi = *(p - 1);
|
||||
uint32_t lo = abs(*p) - 1;
|
||||
|
||||
hi += (hi || lo) ? 0x3f80 : 0;
|
||||
// SWAP16: swap all the 16 bits
|
||||
|
|
@ -394,7 +394,7 @@ static int tta_decode_frame(AVCodecContext *avctx,
|
|||
else {
|
||||
// decorrelate in case of stereo integer
|
||||
if (!s->is_float && (s->channels > 1)) {
|
||||
long *r = p - 1;
|
||||
int32_t *r = p - 1;
|
||||
for (*p += *r / 2; r > p - s->channels; r--)
|
||||
*r = *(r + 1) - *r;
|
||||
}
|
||||
|
|
|
|||
Loading…
Reference in New Issue