cook: K&R formatting cosmetics

Signed-off-by: Diego Biurrun <diego@biurrun.de>
This commit is contained in:
Shitiz Garg
2011-12-31 03:48:53 +05:30
committed by Diego Biurrun
parent 9afc025bff
commit c3513477bb

View File

@ -165,7 +165,8 @@ static float rootpow2tab[127];
/*************** init functions ***************/
/* table generator */
static av_cold void init_pow2table(void){
static av_cold void init_pow2table(void)
{
int i;
for (i = -63; i < 64; i++) {
pow2tab[63 + i] = pow(2, i);
@ -174,17 +175,18 @@ static av_cold void init_pow2table(void){
}
/* table generator */
static av_cold void init_gain_table(COOKContext *q) {
static av_cold void init_gain_table(COOKContext *q)
{
int i;
q->gain_size_factor = q->samples_per_channel / 8;
for (i=0 ; i<23 ; i++) {
for (i = 0; i < 23; i++)
q->gain_table[i] = pow(pow2tab[i + 52],
(1.0 / (double) q->gain_size_factor));
}
}
static av_cold int init_cook_vlc_tables(COOKContext *q) {
static av_cold int init_cook_vlc_tables(COOKContext *q)
{
int i, result;
result = 0;
@ -213,7 +215,8 @@ static av_cold int init_cook_vlc_tables(COOKContext *q) {
return result;
}
static av_cold int init_cook_mlt(COOKContext *q) {
static av_cold int init_cook_mlt(COOKContext *q)
{
int j, ret;
int mlt_size = q->samples_per_channel;
@ -242,7 +245,8 @@ static const float *maybe_reformat_buffer32 (COOKContext *q, const float *ptr, i
return ptr;
}
static av_cold void init_cplscales_table (COOKContext *q) {
static av_cold void init_cplscales_table(COOKContext *q)
{
int i;
for (i = 0; i < 5; i++)
q->cplscales[i] = maybe_reformat_buffer32(q, cplscales[i], (1 << (i + 2)) - 1);
@ -273,8 +277,8 @@ static av_cold void init_cplscales_table (COOKContext *q) {
* @param out pointer to byte array of outdata
* @param bytes number of bytes
*/
static inline int decode_bytes(const uint8_t* inbuffer, uint8_t* out, int bytes){
static inline int decode_bytes(const uint8_t *inbuffer, uint8_t *out, int bytes)
{
static const uint32_t tab[4] = {
AV_BE2NE32C(0x37c511f2), AV_BE2NE32C(0xf237c511),
AV_BE2NE32C(0x11f237c5), AV_BE2NE32C(0xc511f237),
@ -302,7 +306,6 @@ static inline int decode_bytes(const uint8_t* inbuffer, uint8_t* out, int bytes)
/**
* Cook uninit
*/
static av_cold int cook_decode_close(AVCodecContext *avctx)
{
int i;
@ -317,15 +320,12 @@ static av_cold int cook_decode_close(AVCodecContext *avctx)
ff_mdct_end(&q->mdct_ctx);
/* Free the VLC tables. */
for (i=0 ; i<13 ; i++) {
for (i = 0; i < 13; i++)
free_vlc(&q->envelope_quant_index[i]);
}
for (i=0 ; i<7 ; i++) {
for (i = 0; i < 7; i++)
free_vlc(&q->sqvh[i]);
}
for (i=0 ; i<q->num_subpackets ; i++) {
for (i = 0; i < q->num_subpackets; i++)
free_vlc(&q->subpacket[i].ccpl);
}
av_log(avctx, AV_LOG_DEBUG, "Memory deallocated.\n");
@ -338,12 +338,14 @@ static av_cold int cook_decode_close(AVCodecContext *avctx)
* @param gb pointer to the GetBitContext
* @param gaininfo array[9] of gain indexes
*/
static void decode_gain_info(GetBitContext *gb, int *gaininfo)
{
int i, n;
while (get_bits1(gb)) {}
while (get_bits1(gb)) {
/* NOTHING */
}
n = get_bits_count(gb) - 1; // amount of elements*2 to update
i = 0;
@ -351,9 +353,11 @@ static void decode_gain_info(GetBitContext *gb, int *gaininfo)
int index = get_bits(gb, 3);
int gain = get_bits1(gb) ? get_bits(gb, 4) - 7 : -1;
while (i <= index) gaininfo[i++] = gain;
while (i <= index)
gaininfo[i++] = gain;
}
while (i <= 8) gaininfo[i++] = 0;
while (i <= 8)
gaininfo[i++] = 0;
}
/**
@ -362,8 +366,9 @@ static void decode_gain_info(GetBitContext *gb, int *gaininfo)
* @param q pointer to the COOKContext
* @param quant_index_table pointer to the array
*/
static void decode_envelope(COOKContext *q, COOKSubpacket *p, int* quant_index_table) {
static void decode_envelope(COOKContext *q, COOKSubpacket *p,
int *quant_index_table)
{
int i, j, vlc_index;
quant_index_table[0] = get_bits(&q->gb, 6) - 6; // This is used later in categorize
@ -374,9 +379,11 @@ static void decode_envelope(COOKContext *q, COOKSubpacket *p, int* quant_index_t
vlc_index -= p->js_subband_start;
} else {
vlc_index /= 2;
if(vlc_index < 1) vlc_index = 1;
if (vlc_index < 1)
vlc_index = 1;
}
if (vlc_index>13) vlc_index = 13; //the VLC tables >13 are identical to No. 13
if (vlc_index > 13)
vlc_index = 13; // the VLC tables >13 are identical to No. 13
j = get_vlc2(&q->gb, q->envelope_quant_index[vlc_index - 1].table,
q->envelope_quant_index[vlc_index - 1].bits, 2);
@ -392,9 +399,9 @@ static void decode_envelope(COOKContext *q, COOKSubpacket *p, int* quant_index_t
* @param category pointer to the category array
* @param category_index pointer to the category_index array
*/
static void categorize(COOKContext *q, COOKSubpacket *p, int *quant_index_table,
int* category, int* category_index){
int *category, int *category_index)
{
int exp_idx, bias, tmpbias1, tmpbias2, bits_left, num_bits, index, v, i, j;
int exp_index2[102];
int exp_index1[102];
@ -426,10 +433,9 @@ static void categorize(COOKContext *q, COOKSubpacket *p, int* quant_index_table,
index++;
num_bits += expbits_tab[exp_idx];
}
if(num_bits >= bits_left - 32){
if (num_bits >= bits_left - 32)
bias += i;
}
}
/* Calculate total number of bits. */
num_bits = 0;
@ -454,7 +460,8 @@ static void categorize(COOKContext *q, COOKSubpacket *p, int* quant_index_table,
}
}
}
if(index==-1)break;
if (index == -1)
break;
tmp_categorize_array[tmp_categorize_array1_idx++] = index;
tmpbias1 -= expbits_tab[exp_index1[index]] -
expbits_tab[exp_index1[index] + 1];
@ -471,7 +478,8 @@ static void categorize(COOKContext *q, COOKSubpacket *p, int* quant_index_table,
}
}
}
if(index == -1)break;
if (index == -1)
break;
tmp_categorize_array[--tmp_categorize_array2_idx] = index;
tmpbias2 -= expbits_tab[exp_index2[index]] -
expbits_tab[exp_index2[index] - 1];
@ -484,7 +492,6 @@ static void categorize(COOKContext *q, COOKSubpacket *p, int* quant_index_table,
for (i = 0; i < p->numvector_size - 1; i++)
category_index[i] = tmp_categorize_array[tmp_categorize_array2_idx++];
}
@ -495,14 +502,13 @@ static void categorize(COOKContext *q, COOKSubpacket *p, int* quant_index_table,
* @param category pointer to the category array
* @param category_index pointer to the category_index array
*/
static inline void expand_category(COOKContext *q, int *category,
int* category_index){
int *category_index)
{
int i;
for(i=0 ; i<q->num_vectors ; i++){
for (i = 0; i < q->num_vectors; i++)
++category[category_index[i]];
}
}
/**
* The real requantization of the mltcoefs
@ -514,21 +520,23 @@ static inline void expand_category(COOKContext *q, int* category,
* @param subband_coef_sign signs of coefficients
* @param mlt_p pointer into the mlt buffer
*/
static void scalar_dequant_float(COOKContext *q, int index, int quant_index,
int *subband_coef_index, int *subband_coef_sign,
float* mlt_p){
float *mlt_p)
{
int i;
float f1;
for (i = 0; i < SUBBAND_SIZE; i++) {
if (subband_coef_index[i]) {
f1 = quant_centroid_tab[index][subband_coef_index[i]];
if (subband_coef_sign[i]) f1 = -f1;
if (subband_coef_sign[i])
f1 = -f1;
} else {
/* noise coding if subband_coef_index[i] == 0 */
f1 = dither_tab[index];
if (av_lfg_get(&q->random_state) < 0x80000000) f1 = -f1;
if (av_lfg_get(&q->random_state) < 0x80000000)
f1 = -f1;
}
mlt_p[i] = f1 * rootpow2tab[quant_index + 63];
}
@ -541,9 +549,9 @@ static void scalar_dequant_float(COOKContext *q, int index, int quant_index,
* @param subband_coef_index array of indexes to quant_centroid_tab
* @param subband_coef_sign signs of coefficients
*/
static int unpack_SQVH(COOKContext *q, COOKSubpacket *p, int category, int* subband_coef_index,
int* subband_coef_sign) {
static int unpack_SQVH(COOKContext *q, COOKSubpacket *p, int category,
int *subband_coef_index, int *subband_coef_sign)
{
int i, j;
int vlc, vd, tmp, result;
@ -585,10 +593,9 @@ static int unpack_SQVH(COOKContext *q, COOKSubpacket *p, int category, int* subb
* @param quant_index_table pointer to the array
* @param mlt_buffer pointer to mlt coefficients
*/
static void decode_vectors(COOKContext *q, COOKSubpacket *p, int *category,
int *quant_index_table, float* mlt_buffer){
int *quant_index_table, float *mlt_buffer)
{
/* A zero in this table means that the subband coefficient is
random noise coded. */
int subband_coef_index[SUBBAND_SIZE];
@ -603,7 +610,8 @@ static void decode_vectors(COOKContext* q, COOKSubpacket* p, int* category,
if (category[band] < 7) {
if (unpack_SQVH(q, p, category[band], subband_coef_index, subband_coef_sign)) {
index = 7;
for(j=0 ; j<p->total_subbands ; j++) category[band+j]=7;
for (j = 0; j < p->total_subbands; j++)
category[band + j] = 7;
}
}
if (index >= 7) {
@ -615,9 +623,9 @@ static void decode_vectors(COOKContext* q, COOKSubpacket* p, int* category,
&mlt_buffer[band * SUBBAND_SIZE]);
}
if(p->total_subbands*SUBBAND_SIZE >= q->samples_per_channel){
/* FIXME: should this be removed, or moved into loop above? */
if (p->total_subbands * SUBBAND_SIZE >= q->samples_per_channel)
return;
} /* FIXME: should this be removed, or moved into loop above? */
}
@ -627,9 +635,8 @@ static void decode_vectors(COOKContext* q, COOKSubpacket* p, int* category,
* @param q pointer to the COOKContext
* @param mlt_buffer pointer to mlt coefficients
*/
static void mono_decode(COOKContext *q, COOKSubpacket *p, float* mlt_buffer) {
static void mono_decode(COOKContext *q, COOKSubpacket *p, float *mlt_buffer)
{
int category_index[128];
int quant_index_table[102];
int category[128];
@ -653,17 +660,16 @@ static void mono_decode(COOKContext *q, COOKSubpacket *p, float* mlt_buffer) {
* @param gain_index index for the block multiplier
* @param gain_index_next index for the next block multiplier
*/
static void interpolate_float(COOKContext *q, float *buffer,
int gain_index, int gain_index_next){
int gain_index, int gain_index_next)
{
int i;
float fc1, fc2;
fc1 = pow2tab[gain_index + 63];
if (gain_index == gain_index_next) { // static gain
for(i=0 ; i<q->gain_size_factor ; i++){
for (i = 0; i < q->gain_size_factor; i++)
buffer[i] *= fc1;
}
} else { // smooth gain
fc2 = q->gain_table[11 + (gain_index_next - gain_index)];
for (i = 0; i < q->gain_size_factor; i++) {
@ -681,7 +687,6 @@ static void interpolate_float(COOKContext *q, float* buffer,
* @param gains_ptr current and previous gains
* @param previous_buffer pointer to the previous buffer to be used for overlapping
*/
static void imlt_window_float(COOKContext *q, float *inbuffer,
cook_gains *gains_ptr, float *previous_buffer)
{
@ -694,11 +699,10 @@ static void imlt_window_float (COOKContext *q, float *inbuffer,
*/
/* Apply window and overlap */
for(i = 0; i < q->samples_per_channel; i++){
for (i = 0; i < q->samples_per_channel; i++)
inbuffer[i] = inbuffer[i] * fc * q->mlt_window[i] -
previous_buffer[i] * q->mlt_window[q->samples_per_channel - 1 - i];
}
}
/**
* The modulated lapped transform, this takes transform coefficients
@ -711,7 +715,6 @@ static void imlt_window_float (COOKContext *q, float *inbuffer,
* @param gains_ptr current and previous gains
* @param previous_buffer pointer to the previous buffer to be used for overlapping
*/
static void imlt_gain(COOKContext *q, float *inbuffer,
cook_gains *gains_ptr, float *previous_buffer)
{
@ -725,11 +728,10 @@ static void imlt_gain(COOKContext *q, float *inbuffer,
q->imlt_window(q, buffer1, gains_ptr, previous_buffer);
/* Apply gain profile */
for (i = 0; i < 8; i++) {
for (i = 0; i < 8; i++)
if (gains_ptr->now[i] || gains_ptr->now[i + 1])
q->interpolate(q, &buffer1[q->gain_size_factor * i],
gains_ptr->now[i], gains_ptr->now[i + 1]);
}
/* Save away the current to be previous block. */
memcpy(previous_buffer, buffer0,
@ -755,14 +757,13 @@ static void decouple_info(COOKContext *q, COOKSubpacket *p, int *decouple_tab)
if (start > end)
return;
if (vlc) {
if (vlc)
for (i = 0; i < length; i++)
decouple_tab[start + i] = get_vlc2(&q->gb, p->ccpl.table, p->ccpl.bits, 2);
} else {
else
for (i = 0; i < length; i++)
decouple_tab[start + i] = get_bits(&q->gb, p->js_vlc_bits);
}
}
/*
* function decouples a pair of signals from a single signal via multiplication.
@ -797,9 +798,9 @@ static void decouple_float (COOKContext *q,
* @param mlt_buffer1 pointer to left channel mlt coefficients
* @param mlt_buffer2 pointer to right channel mlt coefficients
*/
static void joint_decode(COOKContext *q, COOKSubpacket *p, float *mlt_buffer1,
float* mlt_buffer2) {
float *mlt_buffer2)
{
int i, j;
int decouple_tab[SUBBAND_SIZE];
float *decode_buffer = q->decode_buffer_0;
@ -846,9 +847,8 @@ static void joint_decode(COOKContext *q, COOKSubpacket *p, float* mlt_buffer1,
* @param inbuffer pointer to raw stream data
* @param gains_ptr array of current/prev gain pointers
*/
static inline void
decode_bytes_and_gain(COOKContext *q, COOKSubpacket *p, const uint8_t *inbuffer,
static inline void decode_bytes_and_gain(COOKContext *q, COOKSubpacket *p,
const uint8_t *inbuffer,
cook_gains *gains_ptr)
{
int offset;
@ -891,9 +891,7 @@ static void saturate_output_float(COOKContext *q, int chan, float *out)
* @param out pointer to the output buffer
* @param chan 0: left or single channel, 1: right channel
*/
static inline void
mlt_compensate_output(COOKContext *q, float *decode_buffer,
static inline void mlt_compensate_output(COOKContext *q, float *decode_buffer,
cook_gains *gains_ptr, float *previous_buffer,
float *out, int chan)
{
@ -916,9 +914,8 @@ static void decode_subpacket(COOKContext *q, COOKSubpacket *p,
{
int sub_packet_size = p->size;
/* packet dump */
// for (i=0 ; i<sub_packet_size ; i++) {
// for (i = 0; i < sub_packet_size ; i++)
// av_log(q->avctx, AV_LOG_ERROR, "%02x", inbuffer[i]);
// }
// av_log(q->avctx, AV_LOG_ERROR, "\n");
memset(q->decode_buffer_1, 0, sizeof(q->decode_buffer_1));
decode_bytes_and_gain(q, p, inbuffer, &p->gains1);
@ -937,17 +934,14 @@ static void decode_subpacket(COOKContext *q, COOKSubpacket *p,
mlt_compensate_output(q, q->decode_buffer_1, &p->gains1,
p->mono_previous_buffer1, outbuffer, p->ch_idx);
if (p->num_channels == 2) {
if (p->joint_stereo) {
if (p->num_channels == 2)
if (p->joint_stereo)
mlt_compensate_output(q, q->decode_buffer_2, &p->gains1,
p->mono_previous_buffer2, outbuffer, p->ch_idx + 1);
} else {
else
mlt_compensate_output(q, q->decode_buffer_2, &p->gains2,
p->mono_previous_buffer2, outbuffer, p->ch_idx + 1);
}
}
}
/**
@ -955,7 +949,6 @@ static void decode_subpacket(COOKContext *q, COOKSubpacket *p,
*
* @param avctx pointer to the AVCodecContext
*/
static int cook_decode_frame(AVCodecContext *avctx, void *data,
int *got_frame_ptr, AVPacket *avpkt)
{
@ -987,20 +980,27 @@ static int cook_decode_frame(AVCodecContext *avctx, void *data,
q->subpacket[i].size = 2 * buf[avctx->block_align - q->num_subpackets + i];
q->subpacket[0].size -= q->subpacket[i].size + 1;
if (q->subpacket[0].size < 0) {
av_log(avctx,AV_LOG_DEBUG,"frame subpacket size total > avctx->block_align!\n");
av_log(avctx, AV_LOG_DEBUG,
"frame subpacket size total > avctx->block_align!\n");
return AVERROR_INVALIDDATA;
}
}
/* decode supbackets */
for (i = 0; i < q->num_subpackets; i++) {
q->subpacket[i].bits_per_subpacket = (q->subpacket[i].size*8)>>q->subpacket[i].bits_per_subpdiv;
q->subpacket[i].bits_per_subpacket = (q->subpacket[i].size * 8) >>
q->subpacket[i].bits_per_subpdiv;
q->subpacket[i].ch_idx = chidx;
av_log(avctx,AV_LOG_DEBUG,"subpacket[%i] size %i js %i %i block_align %i\n",i,q->subpacket[i].size,q->subpacket[i].joint_stereo,offset,avctx->block_align);
av_log(avctx, AV_LOG_DEBUG,
"subpacket[%i] size %i js %i %i block_align %i\n",
i, q->subpacket[i].size, q->subpacket[i].joint_stereo, offset,
avctx->block_align);
decode_subpacket(q, &q->subpacket[i], buf + offset, samples);
offset += q->subpacket[i].size;
chidx += q->subpacket[i].num_channels;
av_log(avctx,AV_LOG_DEBUG,"subpacket[%i] %i %i\n",i,q->subpacket[i].size * 8,get_bits_count(&q->gb));
av_log(avctx, AV_LOG_DEBUG, "subpacket[%i] %i %i\n",
i, q->subpacket[i].size * 8, get_bits_count(&q->gb));
}
/* Discard the first two frames: no valid audio. */
@ -1041,13 +1041,13 @@ static void dump_cook_context(COOKContext *q)
}
#endif
static av_cold int cook_count_channels(unsigned int mask){
static av_cold int cook_count_channels(unsigned int mask)
{
int i;
int channels = 0;
for(i = 0;i<32;i++){
for (i = 0; i < 32; i++)
if (mask & (1 << i))
++channels;
}
return channels;
}
@ -1056,7 +1056,6 @@ static av_cold int cook_count_channels(unsigned int mask){
*
* @param avctx pointer to the AVCodecContext
*/
static av_cold int cook_decode_init(AVCodecContext *avctx)
{
COOKContext *q = avctx->priv_data;
@ -1110,7 +1109,8 @@ static av_cold int cook_decode_init(AVCodecContext *avctx)
/* Initialize version-dependent variables */
av_log(avctx,AV_LOG_DEBUG,"subpacket[%i].cookversion=%x\n",s,q->subpacket[s].cookversion);
av_log(avctx, AV_LOG_DEBUG, "subpacket[%i].cookversion=%x\n", s,
q->subpacket[s].cookversion);
q->subpacket[s].joint_stereo = 0;
switch (q->subpacket[s].cookversion) {
case MONO:
@ -1134,7 +1134,8 @@ static av_cold int cook_decode_init(AVCodecContext *avctx)
}
av_log(avctx, AV_LOG_DEBUG, "JOINT_STEREO\n");
if (avctx->extradata_size >= 16) {
q->subpacket[s].total_subbands = q->subpacket[s].subbands + q->subpacket[s].js_subband_start;
q->subpacket[s].total_subbands = q->subpacket[s].subbands +
q->subpacket[s].js_subband_start;
q->subpacket[s].joint_stereo = 1;
q->subpacket[s].num_channels = 2;
}
@ -1151,7 +1152,8 @@ static av_cold int cook_decode_init(AVCodecContext *avctx)
channel_mask |= q->subpacket[s].channel_mask = bytestream_get_be32(&edata_ptr);
if (cook_count_channels(q->subpacket[s].channel_mask) > 1) {
q->subpacket[s].total_subbands = q->subpacket[s].subbands + q->subpacket[s].js_subband_start;
q->subpacket[s].total_subbands = q->subpacket[s].subbands +
q->subpacket[s].js_subband_start;
q->subpacket[s].joint_stereo = 1;
q->subpacket[s].num_channels = 2;
q->subpacket[s].samples_per_channel = q->subpacket[s].samples_per_frame >> 1;
@ -1187,7 +1189,8 @@ static av_cold int cook_decode_init(AVCodecContext *avctx)
return AVERROR_PATCHWELCOME;
}
if ((q->subpacket[s].js_vlc_bits > 6) || (q->subpacket[s].js_vlc_bits < 2*q->subpacket[s].joint_stereo)) {
if ((q->subpacket[s].js_vlc_bits > 6) ||
(q->subpacket[s].js_vlc_bits < 2 * q->subpacket[s].joint_stereo)) {
av_log(avctx, AV_LOG_ERROR, "js_vlc_bits = %d, only >= %d and <= 6 allowed!\n",
q->subpacket[s].js_vlc_bits, 2 * q->subpacket[s].joint_stereo);
return AVERROR_INVALIDDATA;
@ -1245,7 +1248,8 @@ static av_cold int cook_decode_init(AVCodecContext *avctx)
}
/* Try to catch some obviously faulty streams, othervise it might be exploitable */
if ((q->samples_per_channel == 256) || (q->samples_per_channel == 512) || (q->samples_per_channel == 1024)) {
if ((q->samples_per_channel == 256) || (q->samples_per_channel == 512)
|| (q->samples_per_channel == 1024)) {
} else {
av_log_ask_for_sample(avctx,
"unknown amount of samples_per_channel = %d\n",
@ -1268,9 +1272,7 @@ static av_cold int cook_decode_init(AVCodecContext *avctx)
return 0;
}
AVCodec ff_cook_decoder =
{
AVCodec ff_cook_decoder = {
.name = "cook",
.type = AVMEDIA_TYPE_AUDIO,
.id = CODEC_ID_COOK,