eessppeelllloo/ffmpeg
1
0
Fork 0
mirror of https://git.ffmpeg.org/ffmpeg.git synced 2025-12-22 06:50:12 +01:00
Code Issues Packages Projects Releases Wiki Activity

Remove dec1() function

Browse Source 
Originally committed as revision 13504 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Vitor Sessak
2008-05-28 20:36:11 +00:00
parent ea813b44a8
commit e05f96285e
1 changed files with 12 additions and 17 deletions
Download Patch File Download Diff File Expand all files Collapse all files

29
libavcodec/ra144.c
View File

@@ -242,16 +242,6 @@ static void do_output_subblock(RA144Context *ractx,
final(gsp, block, output_buffer, ractx->buffer, BLOCKSIZE); final(gsp, block, output_buffer, ractx->buffer, BLOCKSIZE);
} }
static int dec1(int16_t *decsp, const int *data, const int16_t *inp, int f)
{
int i;
for (i=0; i<30; i++)
*(decsp++) = *(inp++);
return rms(data, f);
}
static int eq(const int16_t *in, int *target) static int eq(const int16_t *in, int *target)
{ {
int retval = 0; int retval = 0;
@@ -311,10 +301,13 @@ static int dec2(RA144Context *ractx, int16_t *decsp, int block_num,
if (eq(decsp, work)) { if (eq(decsp, work)) {
// The interpolated coefficients are unstable, copy either new or old // The interpolated coefficients are unstable, copy either new or old
// coefficients // coefficients
if (copynew) if (copynew) {
return dec1(decsp, ractx->lpc_refl, ractx->lpc_coef, f); memcpy(decsp, ractx->lpc_coef, 30*sizeof(*decsp));
else return rms(ractx->lpc_refl, f);
return dec1(decsp, ractx->lpc_refl_old, ractx->lpc_coef_old, f); } else {
memcpy(decsp, ractx->lpc_coef_old, 30*sizeof(*decsp));
return rms(ractx->lpc_refl_old, f);
}
} else { } else {
return rms(work, f); return rms(work, f);
} }
@@ -326,14 +319,16 @@ static int ra144_decode_frame(AVCodecContext * avctx,
const uint8_t * buf, int buf_size) const uint8_t * buf, int buf_size)
{ {
static const uint8_t sizes[10] = {6, 5, 5, 4, 4, 3, 3, 3, 3, 2}; static const uint8_t sizes[10] = {6, 5, 5, 4, 4, 3, 3, 3, 3, 2};
RA144Context *ractx = avctx->priv_data;
unsigned int gbuf1[4]; unsigned int gbuf1[4];
uint16_t gbuf2[4][30]; uint16_t coef_table[3][30];
uint16_t *gbuf2[4] =
{coef_table[0], coef_table[1], coef_table[2], ractx->lpc_coef};
unsigned int a, c; unsigned int a, c;
int i; int i;
int16_t *data = vdata; int16_t *data = vdata;
unsigned int energy; unsigned int energy;
RA144Context *ractx = avctx->priv_data;
GetBitContext gb; GetBitContext gb;
if(buf_size < 20) { if(buf_size < 20) {
@@ -355,7 +350,7 @@ static int ra144_decode_frame(AVCodecContext * avctx,
gbuf1[0] = dec2(ractx, gbuf2[0], 0, 0, ractx->old_energy); gbuf1[0] = dec2(ractx, gbuf2[0], 0, 0, ractx->old_energy);
gbuf1[1] = dec2(ractx, gbuf2[1], 1, energy > ractx->old_energy, a); gbuf1[1] = dec2(ractx, gbuf2[1], 1, energy > ractx->old_energy, a);
gbuf1[2] = dec2(ractx, gbuf2[2], 2, 1, energy); gbuf1[2] = dec2(ractx, gbuf2[2], 2, 1, energy);
gbuf1[3] = dec1(gbuf2[3], ractx->lpc_refl, ractx->lpc_coef, energy); gbuf1[3] = rms(ractx->lpc_refl, energy);
/* do output */ /* do output */
for (c=0; c<4; c++) { for (c=0; c<4; c++) {