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Code Issues Releases Activity

Cosmetics

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Originally committed as revision 15838 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Reynaldo H. Verdejo Pinochet 2008-11-16 00:57:06 +00:00
parent f29289eec7
commit 1c3ae1abf2
1 changed files with 54 additions and 45 deletions
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99
libavcodec/qcelpdec.c
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@ -18,6 +18,7 @@
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
/**
* @file qcelpdec.c
* QCELP decoder
@ -38,15 +39,13 @@
#undef NDEBUG
#include <assert.h>
static void weighted_vector_sumf(float *out,
const float *in_a,
const float *in_b,
float weight_coeff_a,
float weight_coeff_b,
int length) {
int i;
static void weighted_vector_sumf(float *out, const float *in_a,
const float *in_b, float weight_coeff_a,
float weight_coeff_b, int length)
{
int i;
for (i = 0; i < length; i++)
for(i=0; i<length; i++)
out[i] = weight_coeff_a * in_a[i]
+ weight_coeff_b * in_b[i];
}
@ -205,25 +204,28 @@ static void apply_gain_ctrl(float *v_out,
*
* @return filter output vector
*/
static const float *do_pitchfilter(float memory[303],
const float v_in[160],
const float gain[4],
const uint8_t *lag,
const uint8_t pfrac[4]) {
static const float *do_pitchfilter(float memory[303], const float v_in[160],
const float gain[4], const uint8_t *lag,
const uint8_t pfrac[4])
{
int i, j;
float *v_lag, *v_out;
const float *v_len;
v_out = memory + 143; // Output vector starts at memory[143].
for (i = 0; i < 4; i++)
if (gain[i]) {
for(i=0; i<4; i++)
{
if(gain[i])
{
v_lag = memory + 143 + 40 * i - lag[i];
for (v_len = v_in + 40; v_in < v_len; v_in++) {
if (pfrac[i]) { // If it is a fractional lag...
for (j = 0, *v_out = 0.; j < 4; j++)
for(v_len=v_in+40; v_in<v_len; v_in++)
{
if(pfrac[i]) // If it is a fractional lag...
{
for(j=0, *v_out=0.; j<4; j++)
*v_out += qcelp_hammsinc_table[j] * (v_lag[j-4] + v_lag[3-j]);
} else
}else
*v_out = *v_lag;
*v_out = *v_in + gain[i] * *v_out;
@ -231,11 +233,13 @@ static const float *do_pitchfilter(float memory[303],
v_lag++;
v_out++;
}
} else {
}else
{
memcpy(v_out, v_in, 40 * sizeof(float));
v_in += 40;
v_out += 40;
}
}
memmove(memory, memory + 160, 143 * sizeof(float));
return memory + 143;
@ -252,47 +256,52 @@ static const float *do_pitchfilter(float memory[303],
* @param lpc float vector for the resulting LPC
* @param subframe_num frame number in decoded stream
*/
void interpolate_lpc(QCELPContext *q,
const float *curr_lspf,
float *lpc,
const int subframe_num) {
void interpolate_lpc(QCELPContext *q, const float *curr_lspf, float *lpc,
const int subframe_num)
{
float interpolated_lspf[10];
float weight;
if (q->framerate >= RATE_QUARTER) {
if(q->framerate >= RATE_QUARTER)
weight = 0.25 * (subframe_num + 1);
} else if (q->framerate == RATE_OCTAVE && !subframe_num) {
else if(q->framerate == RATE_OCTAVE && !subframe_num)
weight = 0.625;
} else {
else
weight = 1.0;
}
if (weight != 1.0) {
weighted_vector_sumf(interpolated_lspf, curr_lspf, q->prev_lspf, weight, 1.0 - weight, 10);
if(weight != 1.0)
{
weighted_vector_sumf(interpolated_lspf, curr_lspf, q->prev_lspf,
weight, 1.0 - weight, 10);
qcelp_lspf2lpc(interpolated_lspf, lpc);
} else if (q->framerate >= RATE_QUARTER || (q->framerate == I_F_Q && !subframe_num))
}else if(q->framerate >= RATE_QUARTER || (q->framerate == I_F_Q && !subframe_num))
qcelp_lspf2lpc(curr_lspf, lpc);
}
static int buf_size2framerate(const int buf_size) {
switch (buf_size) {
case 35:
return RATE_FULL;
case 17:
return RATE_HALF;
case 8:
return RATE_QUARTER;
case 4:
return RATE_OCTAVE;
case 1:
return SILENCE;
static int buf_size2framerate(const int buf_size)
{
switch(buf_size)
{
case 35:
return RATE_FULL;
case 17:
return RATE_HALF;
case 8:
return RATE_QUARTER;
case 4:
return RATE_OCTAVE;
case 1:
return SILENCE;
}
return -1;
}
static void warn_insufficient_frame_quality(AVCodecContext *avctx,
const char *message) {
av_log(avctx, AV_LOG_WARNING, "Frame #%d, IFQ: %s\n", avctx->frame_number, message);
const char *message)
{
av_log(avctx, AV_LOG_WARNING, "Frame #%d, IFQ: %s\n", avctx->frame_number,
message);
}
AVCodec qcelp_decoder =