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Code Issues Releases Activity

Context vars are not global vars. glob is a bad name for it.

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Originally committed as revision 13430 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Vitor Sessak 2008-05-26 16:59:39 +00:00
parent fc9fcbaed5
commit 17a7fc8ceb
1 changed files with 24 additions and 24 deletions
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48
libavcodec/ra144.c
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@ -46,12 +46,12 @@ typedef struct {
static int ra144_decode_init(AVCodecContext * avctx)
{
RA144Context *glob = avctx->priv_data;
RA144Context *ractx = avctx->priv_data;
glob->swapbuf1 = glob->swapbuffers[0];
glob->swapbuf2 = glob->swapbuffers[1];
glob->swapbuf1alt = glob->swapbuffers[2];
glob->swapbuf2alt = glob->swapbuffers[3];
ractx->swapbuf1 = ractx->swapbuffers[0];
ractx->swapbuf2 = ractx->swapbuffers[1];
ractx->swapbuf1alt = ractx->swapbuffers[2];
ractx->swapbuf2alt = ractx->swapbuffers[3];
return 0;
}
@ -199,7 +199,7 @@ static unsigned int rms(const int *data, int f)
}
/* do quarter-block output */
static void do_output_subblock(RA144Context *glob,
static void do_output_subblock(RA144Context *ractx,
const uint16_t *gsp, unsigned int gval,
int16_t *output_buffer, GetBitContext *gb)
{
@ -213,7 +213,7 @@ static void do_output_subblock(RA144Context *glob,
if (a) {
a += HALFBLOCK - 1;
rotate_block(glob->buffer_2, buffer_a, a);
rotate_block(ractx->buffer_2, buffer_a, a);
m[0] = irms(buffer_a, gval) >> 12;
} else {
m[0] = 0;
@ -222,14 +222,14 @@ static void do_output_subblock(RA144Context *glob,
m[1] = ((ftable1[b] >> 4) * gval) >> 8;
m[2] = ((ftable2[c] >> 4) * gval) >> 8;
memmove(glob->buffer_2, glob->buffer_2 + BLOCKSIZE,
memmove(ractx->buffer_2, ractx->buffer_2 + BLOCKSIZE,
(BUFFERSIZE - BLOCKSIZE) * 2);
block = glob->buffer_2 + BUFFERSIZE - BLOCKSIZE;
block = ractx->buffer_2 + BUFFERSIZE - BLOCKSIZE;
add_wav(d, a, m, buffer_a, etable1[b], etable2[c], block);
final(gsp, block, output_buffer, glob->buffer, BLOCKSIZE);
final(gsp, block, output_buffer, ractx->buffer, BLOCKSIZE);
}
static int dec1(int16_t *decsp, const int *data, const int *inp, int f)
@ -314,7 +314,7 @@ static int ra144_decode_frame(AVCodecContext * avctx,
int16_t *data = vdata;
unsigned int val;
RA144Context *glob = avctx->priv_data;
RA144Context *ractx = avctx->priv_data;
GetBitContext gb;
if(buf_size < 20) {
@ -326,25 +326,25 @@ static int ra144_decode_frame(AVCodecContext * avctx,
for (i=0; i<10; i++)
// "<< 1"? Doesn't this make one value out of two of the table useless?
glob->swapbuf1[i] = decodetable[i][get_bits(&gb, sizes[i]) << 1];
ractx->swapbuf1[i] = decodetable[i][get_bits(&gb, sizes[i]) << 1];
do_voice(glob->swapbuf1, glob->swapbuf2);
do_voice(ractx->swapbuf1, ractx->swapbuf2);
val = decodeval[get_bits(&gb, 5) << 1]; // Useless table entries?
a = t_sqrt(val*glob->oldval) >> 12;
a = t_sqrt(val*ractx->oldval) >> 12;
gbuf1[0] = dec2(gbuf2[0], glob->swapbuf1alt, glob->swapbuf2alt, glob->oldval, glob->swapbuf2, 3);
if (glob->oldval < val) {
gbuf1[1] = dec2(gbuf2[1], glob->swapbuf1, glob->swapbuf2, a, glob->swapbuf2alt, 2);
gbuf1[0] = dec2(gbuf2[0], ractx->swapbuf1alt, ractx->swapbuf2alt, ractx->oldval, ractx->swapbuf2, 3);
if (ractx->oldval < val) {
gbuf1[1] = dec2(gbuf2[1], ractx->swapbuf1, ractx->swapbuf2, a, ractx->swapbuf2alt, 2);
} else {
gbuf1[1] = dec2(gbuf2[1], glob->swapbuf1alt, glob->swapbuf2alt, a, glob->swapbuf2, 2);
gbuf1[1] = dec2(gbuf2[1], ractx->swapbuf1alt, ractx->swapbuf2alt, a, ractx->swapbuf2, 2);
}
gbuf1[2] = dec2(gbuf2[2], glob->swapbuf1, glob->swapbuf2, val, glob->swapbuf2alt, 3);
gbuf1[3] = dec1(gbuf2[3], glob->swapbuf1, glob->swapbuf2, val);
gbuf1[2] = dec2(gbuf2[2], ractx->swapbuf1, ractx->swapbuf2, val, ractx->swapbuf2alt, 3);
gbuf1[3] = dec1(gbuf2[3], ractx->swapbuf1, ractx->swapbuf2, val);
/* do output */
for (c=0; c<4; c++) {
do_output_subblock(glob, gbuf2[c], gbuf1[c], data, &gb);
do_output_subblock(ractx, gbuf2[c], gbuf1[c], data, &gb);
for (i=0; i<BLOCKSIZE; i++) {
*data = av_clip_int16(*data << 2);
@ -352,10 +352,10 @@ static int ra144_decode_frame(AVCodecContext * avctx,
}
}
glob->oldval = val;
ractx->oldval = val;
FFSWAP(unsigned int *, glob->swapbuf1alt, glob->swapbuf1);
FFSWAP(unsigned int *, glob->swapbuf2alt, glob->swapbuf2);
FFSWAP(unsigned int *, ractx->swapbuf1alt, ractx->swapbuf1);
FFSWAP(unsigned int *, ractx->swapbuf2alt, ractx->swapbuf2);
*data_size = 2*160;
return 20;