cosmetics: K&R coding style

Originally committed as revision 19562 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Diego Biurrun 2009-08-02 10:50:59 +00:00
parent 954489244e
commit 577d383b0c
1 changed files with 391 additions and 314 deletions

View File

@ -93,13 +93,17 @@
#include <math.h>
#include <string.h>
union float754 { float f; uint32_t i; };
union float754 {
float f;
uint32_t i;
};
static VLC vlc_scalefactors;
static VLC vlc_spectral[11];
static ChannelElement* get_che(AACContext *ac, int type, int elem_id) {
static ChannelElement *get_che(AACContext *ac, int type, int elem_id)
{
static const int8_t tags_per_config[16] = { 0, 1, 1, 2, 3, 3, 4, 5, 0, 0, 0, 0, 0, 0, 0, 0 };
if (ac->tag_che_map[type][elem_id]) {
return ac->tag_che_map[type][elem_id];
@ -157,8 +161,11 @@ static ChannelElement* get_che(AACContext *ac, int type, int elem_id) {
*
* @return Returns error status. 0 - OK, !0 - error
*/
static int output_configure(AACContext *ac, enum ChannelPosition che_pos[4][MAX_ELEM_ID],
enum ChannelPosition new_che_pos[4][MAX_ELEM_ID], int channel_config) {
static int output_configure(AACContext *ac,
enum ChannelPosition che_pos[4][MAX_ELEM_ID],
enum ChannelPosition new_che_pos[4][MAX_ELEM_ID],
int channel_config)
{
AVCodecContext *avctx = ac->avccontext;
int i, type, channels = 0;
@ -212,7 +219,10 @@ static int output_configure(AACContext *ac, enum ChannelPosition che_pos[4][MAX_
* @param type speaker type/position for these channels
*/
static void decode_channel_map(enum ChannelPosition *cpe_map,
enum ChannelPosition *sce_map, enum ChannelPosition type, GetBitContext * gb, int n) {
enum ChannelPosition *sce_map,
enum ChannelPosition type,
GetBitContext *gb, int n)
{
while (n--) {
enum ChannelPosition *map = cpe_map && get_bits1(gb) ? cpe_map : sce_map; // stereo or mono map
map[get_bits(gb, 4)] = type;
@ -227,7 +237,8 @@ static void decode_channel_map(enum ChannelPosition *cpe_map,
* @return Returns error status. 0 - OK, !0 - error
*/
static int decode_pce(AACContext *ac, enum ChannelPosition new_che_pos[4][MAX_ELEM_ID],
GetBitContext * gb) {
GetBitContext *gb)
{
int num_front, num_side, num_back, num_lfe, num_assoc_data, num_cc, sampling_index;
skip_bits(gb, 2); // object_type
@ -275,7 +286,8 @@ static int decode_pce(AACContext * ac, enum ChannelPosition new_che_pos[4][MAX_E
*
* @return Returns error status. 0 - OK, !0 - error
*/
static int set_default_channel_config(AACContext *ac, enum ChannelPosition new_che_pos[4][MAX_ELEM_ID],
static int set_default_channel_config(AACContext *ac,
enum ChannelPosition new_che_pos[4][MAX_ELEM_ID],
int channel_config)
{
if (channel_config < 1 || channel_config > 7) {
@ -317,7 +329,9 @@ static int set_default_channel_config(AACContext *ac, enum ChannelPosition new_c
*
* @return Returns error status. 0 - OK, !0 - error
*/
static int decode_ga_specific_config(AACContext * ac, GetBitContext * gb, int channel_config) {
static int decode_ga_specific_config(AACContext *ac, GetBitContext *gb,
int channel_config)
{
enum ChannelPosition new_che_pos[4][MAX_ELEM_ID];
int extension_flag, ret;
@ -375,7 +389,9 @@ static int decode_ga_specific_config(AACContext * ac, GetBitContext * gb, int ch
*
* @return Returns error status. 0 - OK, !0 - error
*/
static int decode_audio_specific_config(AACContext * ac, void *data, int data_size) {
static int decode_audio_specific_config(AACContext *ac, void *data,
int data_size)
{
GetBitContext gb;
int i;
@ -411,11 +427,13 @@ static int decode_audio_specific_config(AACContext * ac, void *data, int data_si
*
* @return Returns a 32-bit pseudorandom integer
*/
static av_always_inline int lcg_random(int previous_val) {
static av_always_inline int lcg_random(int previous_val)
{
return previous_val * 1664525 + 1013904223;
}
static void reset_predict_state(PredictorState * ps) {
static void reset_predict_state(PredictorState *ps)
{
ps->r0 = 0.0f;
ps->r1 = 0.0f;
ps->cor0 = 0.0f;
@ -424,19 +442,22 @@ static void reset_predict_state(PredictorState * ps) {
ps->var1 = 1.0f;
}
static void reset_all_predictors(PredictorState * ps) {
static void reset_all_predictors(PredictorState *ps)
{
int i;
for (i = 0; i < MAX_PREDICTORS; i++)
reset_predict_state(&ps[i]);
}
static void reset_predictor_group(PredictorState * ps, int group_num) {
static void reset_predictor_group(PredictorState *ps, int group_num)
{
int i;
for (i = group_num - 1; i < MAX_PREDICTORS; i += 30)
reset_predict_state(&ps[i]);
}
static av_cold int aac_decode_init(AVCodecContext * avccontext) {
static av_cold int aac_decode_init(AVCodecContext *avccontext)
{
AACContext *ac = avccontext->priv_data;
int i;
@ -507,7 +528,8 @@ static av_cold int aac_decode_init(AVCodecContext * avccontext) {
/**
* Skip data_stream_element; reference: table 4.10.
*/
static void skip_data_stream_element(GetBitContext * gb) {
static void skip_data_stream_element(GetBitContext *gb)
{
int byte_align = get_bits1(gb);
int count = get_bits(gb, 8);
if (count == 255)
@ -517,7 +539,9 @@ static void skip_data_stream_element(GetBitContext * gb) {
skip_bits_long(gb, 8 * count);
}
static int decode_prediction(AACContext * ac, IndividualChannelStream * ics, GetBitContext * gb) {
static int decode_prediction(AACContext *ac, IndividualChannelStream *ics,
GetBitContext *gb)
{
int sfb;
if (get_bits1(gb)) {
ics->predictor_reset_group = get_bits(gb, 5);
@ -537,7 +561,9 @@ static int decode_prediction(AACContext * ac, IndividualChannelStream * ics, Get
*
* @param common_window Channels have independent [0], or shared [1], Individual Channel Stream information.
*/
static int decode_ics_info(AACContext * ac, IndividualChannelStream * ics, GetBitContext * gb, int common_window) {
static int decode_ics_info(AACContext *ac, IndividualChannelStream *ics,
GetBitContext *gb, int common_window)
{
if (get_bits1(gb)) {
av_log(ac->avccontext, AV_LOG_ERROR, "Reserved bit set.\n");
memset(ics, 0, sizeof(IndividualChannelStream));
@ -611,7 +637,9 @@ static int decode_ics_info(AACContext * ac, IndividualChannelStream * ics, GetBi
* @return Returns error status. 0 - OK, !0 - error
*/
static int decode_band_types(AACContext *ac, enum BandType band_type[120],
int band_type_run_end[120], GetBitContext * gb, IndividualChannelStream * ics) {
int band_type_run_end[120], GetBitContext *gb,
IndividualChannelStream *ics)
{
int g, idx = 0;
const int bits = (ics->window_sequence[0] == EIGHT_SHORT_SEQUENCE) ? 3 : 5;
for (g = 0; g < ics->num_window_groups; g++) {
@ -653,8 +681,11 @@ static int decode_band_types(AACContext * ac, enum BandType band_type[120],
* @return Returns error status. 0 - OK, !0 - error
*/
static int decode_scalefactors(AACContext *ac, float sf[120], GetBitContext *gb,
unsigned int global_gain, IndividualChannelStream * ics,
enum BandType band_type[120], int band_type_run_end[120]) {
unsigned int global_gain,
IndividualChannelStream *ics,
enum BandType band_type[120],
int band_type_run_end[120])
{
const int sf_offset = ac->sf_offset + (ics->window_sequence[0] == EIGHT_SHORT_SEQUENCE ? 12 : 0);
int g, i, idx = 0;
int offset[3] = { global_gain, global_gain - 90, 100 };
@ -708,7 +739,9 @@ static int decode_scalefactors(AACContext * ac, float sf[120], GetBitContext * g
/**
* Decode pulse data; reference: table 4.7.
*/
static int decode_pulses(Pulse * pulse, GetBitContext * gb, const uint16_t * swb_offset, int num_swb) {
static int decode_pulses(Pulse *pulse, GetBitContext *gb,
const uint16_t *swb_offset, int num_swb)
{
int i, pulse_swb;
pulse->num_pulse = get_bits(gb, 2) + 1;
pulse_swb = get_bits(gb, 6);
@ -734,7 +767,8 @@ static int decode_pulses(Pulse * pulse, GetBitContext * gb, const uint16_t * swb
* @return Returns error status. 0 - OK, !0 - error
*/
static int decode_tns(AACContext *ac, TemporalNoiseShaping *tns,
GetBitContext * gb, const IndividualChannelStream * ics) {
GetBitContext *gb, const IndividualChannelStream *ics)
{
int w, filt, i, coef_len, coef_res, coef_compress;
const int is8 = ics->window_sequence[0] == EIGHT_SHORT_SEQUENCE;
const int tns_max_order = is8 ? 7 : ac->m4ac.object_type == AOT_AAC_MAIN ? 20 : 12;
@ -775,7 +809,8 @@ static int decode_tns(AACContext * ac, TemporalNoiseShaping * tns,
* [3] reserved for scalable AAC
*/
static void decode_mid_side_stereo(ChannelElement *cpe, GetBitContext *gb,
int ms_present) {
int ms_present)
{
int idx;
if (ms_present == 1) {
for (idx = 0; idx < cpe->ch[0].ics.num_window_groups * cpe->ch[0].ics.max_sfb; idx++)
@ -797,8 +832,12 @@ static void decode_mid_side_stereo(ChannelElement * cpe, GetBitContext * gb,
*
* @return Returns error status. 0 - OK, !0 - error
*/
static int decode_spectrum_and_dequant(AACContext * ac, float coef[1024], GetBitContext * gb, float sf[120],
int pulse_present, const Pulse * pulse, const IndividualChannelStream * ics, enum BandType band_type[120]) {
static int decode_spectrum_and_dequant(AACContext *ac, float coef[1024],
GetBitContext *gb, float sf[120],
int pulse_present, const Pulse *pulse,
const IndividualChannelStream *ics,
enum BandType band_type[120])
{
int i, k, g, idx = 0;
const int c = 1024 / ics->num_windows;
const uint16_t *offsets = ics->swb_offset;
@ -847,11 +886,15 @@ static int decode_spectrum_and_dequant(AACContext * ac, float coef[1024], GetBit
}
vq_ptr = &ff_aac_codebook_vectors[cur_band_type - 1][index * dim];
if (is_cb_unsigned) {
if (vq_ptr[0]) coef[coef_tmp_idx ] = sign_lookup[get_bits1(gb)];
if (vq_ptr[1]) coef[coef_tmp_idx + 1] = sign_lookup[get_bits1(gb)];
if (vq_ptr[0])
coef[coef_tmp_idx ] = sign_lookup[get_bits1(gb)];
if (vq_ptr[1])
coef[coef_tmp_idx + 1] = sign_lookup[get_bits1(gb)];
if (dim == 4) {
if (vq_ptr[2]) coef[coef_tmp_idx + 2] = sign_lookup[get_bits1(gb)];
if (vq_ptr[3]) coef[coef_tmp_idx + 3] = sign_lookup[get_bits1(gb)];
if (vq_ptr[2])
coef[coef_tmp_idx + 2] = sign_lookup[get_bits1(gb)];
if (vq_ptr[3])
coef[coef_tmp_idx + 3] = sign_lookup[get_bits1(gb)];
}
if (cur_band_type == ESC_BT) {
for (j = 0; j < 2; j++) {
@ -869,8 +912,7 @@ static int decode_spectrum_and_dequant(AACContext * ac, float coef[1024], GetBit
} else
coef[coef_tmp_idx + j] *= vq_ptr[j];
}
}else
{
} else {
coef[coef_tmp_idx ] *= vq_ptr[0];
coef[coef_tmp_idx + 1] *= vq_ptr[1];
if (dim == 4) {
@ -918,28 +960,33 @@ static int decode_spectrum_and_dequant(AACContext * ac, float coef[1024], GetBit
return 0;
}
static av_always_inline float flt16_round(float pf) {
static av_always_inline float flt16_round(float pf)
{
union float754 tmp;
tmp.f = pf;
tmp.i = (tmp.i + 0x00008000U) & 0xFFFF0000U;
return tmp.f;
}
static av_always_inline float flt16_even(float pf) {
static av_always_inline float flt16_even(float pf)
{
union float754 tmp;
tmp.f = pf;
tmp.i = (tmp.i + 0x00007FFFU + (tmp.i & 0x00010000U >> 16)) & 0xFFFF0000U;
return tmp.f;
}
static av_always_inline float flt16_trunc(float pf) {
static av_always_inline float flt16_trunc(float pf)
{
union float754 pun;
pun.f = pf;
pun.i &= 0xFFFF0000U;
return pun.f;
}
static void predict(AACContext * ac, PredictorState * ps, float* coef, int output_enable) {
static void predict(AACContext *ac, PredictorState *ps, float *coef,
int output_enable)
{
const float a = 0.953125; // 61.0 / 64
const float alpha = 0.90625; // 29.0 / 32
float e0, e1;
@ -968,7 +1015,8 @@ static void predict(AACContext * ac, PredictorState * ps, float* coef, int outpu
/**
* Apply AAC-Main style frequency domain prediction.
*/
static void apply_prediction(AACContext * ac, SingleChannelElement * sce) {
static void apply_prediction(AACContext *ac, SingleChannelElement *sce)
{
int sfb, k;
if (!sce->ics.predictor_initialized) {
@ -997,7 +1045,9 @@ static void apply_prediction(AACContext * ac, SingleChannelElement * sce) {
*
* @return Returns error status. 0 - OK, !0 - error
*/
static int decode_ics(AACContext * ac, SingleChannelElement * sce, GetBitContext * gb, int common_window, int scale_flag) {
static int decode_ics(AACContext *ac, SingleChannelElement *sce,
GetBitContext *gb, int common_window, int scale_flag)
{
Pulse pulse;
TemporalNoiseShaping *tns = &sce->tns;
IndividualChannelStream *ics = &sce->ics;
@ -1053,7 +1103,8 @@ static int decode_ics(AACContext * ac, SingleChannelElement * sce, GetBitContext
/**
* Mid/Side stereo decoding; reference: 4.6.8.1.3.
*/
static void apply_mid_side_stereo(ChannelElement * cpe) {
static void apply_mid_side_stereo(ChannelElement *cpe)
{
const IndividualChannelStream *ics = &cpe->ch[0].ics;
float *ch0 = cpe->ch[0].coeffs;
float *ch1 = cpe->ch[1].coeffs;
@ -1084,7 +1135,8 @@ static void apply_mid_side_stereo(ChannelElement * cpe) {
* [1] mask is decoded from bitstream; [2] mask is all 1s;
* [3] reserved for scalable AAC
*/
static void apply_intensity_stereo(ChannelElement * cpe, int ms_present) {
static void apply_intensity_stereo(ChannelElement *cpe, int ms_present)
{
const IndividualChannelStream *ics = &cpe->ch[1].ics;
SingleChannelElement *sce1 = &cpe->ch[1];
float *coef0 = cpe->ch[0].coeffs, *coef1 = cpe->ch[1].coeffs;
@ -1123,7 +1175,8 @@ static void apply_intensity_stereo(ChannelElement * cpe, int ms_present) {
*
* @return Returns error status. 0 - OK, !0 - error
*/
static int decode_cpe(AACContext * ac, GetBitContext * gb, ChannelElement * cpe) {
static int decode_cpe(AACContext *ac, GetBitContext *gb, ChannelElement *cpe)
{
int i, ret, common_window, ms_present = 0;
common_window = get_bits1(gb);
@ -1165,7 +1218,8 @@ static int decode_cpe(AACContext * ac, GetBitContext * gb, ChannelElement * cpe)
*
* @return Returns error status. 0 - OK, !0 - error
*/
static int decode_cce(AACContext * ac, GetBitContext * gb, ChannelElement * che) {
static int decode_cce(AACContext *ac, GetBitContext *gb, ChannelElement *che)
{
int num_gain = 0;
int c, g, sfb, ret;
int sign;
@ -1239,7 +1293,9 @@ static int decode_cce(AACContext * ac, GetBitContext * gb, ChannelElement * che)
*
* @return Returns number of bytes consumed from the TYPE_FIL element.
*/
static int decode_sbr_extension(AACContext * ac, GetBitContext * gb, int crc, int cnt) {
static int decode_sbr_extension(AACContext *ac, GetBitContext *gb,
int crc, int cnt)
{
// TODO : sbr_extension implementation
av_log_missing_feature(ac->avccontext, "SBR", 0);
skip_bits_long(gb, 8 * cnt - 4); // -4 due to reading extension type
@ -1251,7 +1307,9 @@ static int decode_sbr_extension(AACContext * ac, GetBitContext * gb, int crc, in
*
* @return Returns number of bytes consumed.
*/
static int decode_drc_channel_exclusions(DynamicRangeControl *che_drc, GetBitContext * gb) {
static int decode_drc_channel_exclusions(DynamicRangeControl *che_drc,
GetBitContext *gb)
{
int i;
int num_excl_chan = 0;
@ -1270,7 +1328,9 @@ static int decode_drc_channel_exclusions(DynamicRangeControl *che_drc, GetBitCon
*
* @return Returns number of bytes consumed.
*/
static int decode_dynamic_range(DynamicRangeControl *che_drc, GetBitContext * gb, int cnt) {
static int decode_dynamic_range(DynamicRangeControl *che_drc,
GetBitContext *gb, int cnt)
{
int n = 1;
int drc_num_bands = 1;
int i;
@ -1322,7 +1382,8 @@ static int decode_dynamic_range(DynamicRangeControl *che_drc, GetBitContext * gb
*
* @return Returns number of bytes consumed
*/
static int decode_extension_payload(AACContext * ac, GetBitContext * gb, int cnt) {
static int decode_extension_payload(AACContext *ac, GetBitContext *gb, int cnt)
{
int crc_flag = 0;
int res = cnt;
switch (get_bits(gb, 4)) { // extension type
@ -1350,7 +1411,9 @@ static int decode_extension_payload(AACContext * ac, GetBitContext * gb, int cnt
* @param decode 1 if tool is used normally, 0 if tool is used in LTP.
* @param coef spectral coefficients
*/
static void apply_tns(float coef[1024], TemporalNoiseShaping * tns, IndividualChannelStream * ics, int decode) {
static void apply_tns(float coef[1024], TemporalNoiseShaping *tns,
IndividualChannelStream *ics, int decode)
{
const int mmm = FFMIN(ics->tns_max_bands, ics->max_sfb);
int w, filt, m, i;
int bottom, top, order, start, end, size, inc;
@ -1373,7 +1436,8 @@ static void apply_tns(float coef[1024], TemporalNoiseShaping * tns, IndividualCh
if ((size = end - start) <= 0)
continue;
if (tns->direction[w][filt]) {
inc = -1; start = end - 1;
inc = -1;
start = end - 1;
} else {
inc = 1;
}
@ -1390,7 +1454,8 @@ static void apply_tns(float coef[1024], TemporalNoiseShaping * tns, IndividualCh
/**
* Conduct IMDCT and windowing.
*/
static void imdct_and_windowing(AACContext * ac, SingleChannelElement * sce) {
static void imdct_and_windowing(AACContext *ac, SingleChannelElement *sce)
{
IndividualChannelStream *ics = &sce->ics;
float *in = sce->coeffs;
float *out = sce->ret;
@ -1461,7 +1526,10 @@ static void imdct_and_windowing(AACContext * ac, SingleChannelElement * sce) {
*
* @param index index into coupling gain array
*/
static void apply_dependent_coupling(AACContext * ac, SingleChannelElement * target, ChannelElement * cce, int index) {
static void apply_dependent_coupling(AACContext *ac,
SingleChannelElement *target,
ChannelElement *cce, int index)
{
IndividualChannelStream *ics = &cce->ch[0].ics;
const uint16_t *offsets = ics->swb_offset;
float *dest = target->coeffs;
@ -1494,7 +1562,10 @@ static void apply_dependent_coupling(AACContext * ac, SingleChannelElement * tar
*
* @param index index into coupling gain array
*/
static void apply_independent_coupling(AACContext * ac, SingleChannelElement * target, ChannelElement * cce, int index) {
static void apply_independent_coupling(AACContext *ac,
SingleChannelElement *target,
ChannelElement *cce, int index)
{
int i;
const float gain = cce->coup.gain[index][0];
const float bias = ac->add_bias;
@ -1512,7 +1583,8 @@ static void apply_independent_coupling(AACContext * ac, SingleChannelElement * t
* @param apply_coupling_method pointer to (in)dependent coupling function
*/
static void apply_channel_coupling(AACContext *ac, ChannelElement *cc,
enum RawDataBlockType type, int elem_id, enum CouplingPoint coupling_point,
enum RawDataBlockType type, int elem_id,
enum CouplingPoint coupling_point,
void (*apply_coupling_method)(AACContext *ac, SingleChannelElement *target, ChannelElement *cce, int index))
{
int i, c;
@ -1543,7 +1615,8 @@ static void apply_channel_coupling(AACContext * ac, ChannelElement * cc,
/**
* Convert spectral data to float samples, applying all supported tools as appropriate.
*/
static void spectral_to_sample(AACContext * ac) {
static void spectral_to_sample(AACContext *ac)
{
int i, type;
for (type = 3; type >= 0; type--) {
for (i = 0; i < MAX_ELEM_ID; i++) {
@ -1568,8 +1641,8 @@ static void spectral_to_sample(AACContext * ac) {
}
}
static int parse_adts_frame_header(AACContext * ac, GetBitContext * gb) {
static int parse_adts_frame_header(AACContext *ac, GetBitContext *gb)
{
int size;
AACADTSHeaderInfo hdr_info;
@ -1598,7 +1671,9 @@ static int parse_adts_frame_header(AACContext * ac, GetBitContext * gb) {
return size;
}
static int aac_decode_frame(AVCodecContext * avccontext, void * data, int * data_size, AVPacket *avpkt) {
static int aac_decode_frame(AVCodecContext *avccontext, void *data,
int *data_size, AVPacket *avpkt)
{
const uint8_t *buf = avpkt->data;
int buf_size = avpkt->size;
AACContext *ac = avccontext->priv_data;
@ -1652,8 +1727,7 @@ static int aac_decode_frame(AVCodecContext * avccontext, void * data, int * data
err = 0;
break;
case TYPE_PCE:
{
case TYPE_PCE: {
enum ChannelPosition new_che_pos[4][MAX_ELEM_ID];
memset(new_che_pos, 0, 4 * MAX_ELEM_ID * sizeof(new_che_pos[0][0]));
if ((err = decode_pce(ac, new_che_pos, &gb)))
@ -1705,7 +1779,8 @@ static int aac_decode_frame(AVCodecContext * avccontext, void * data, int * data
return buf_size;
}
static av_cold int aac_decode_close(AVCodecContext * avccontext) {
static av_cold int aac_decode_close(AVCodecContext *avccontext)
{
AACContext *ac = avccontext->priv_data;
int i, type;
@ -1729,5 +1804,7 @@ AVCodec aac_decoder = {
aac_decode_close,
aac_decode_frame,
.long_name = NULL_IF_CONFIG_SMALL("Advanced Audio Coding"),
.sample_fmts = (enum SampleFormat[]){SAMPLE_FMT_S16,SAMPLE_FMT_NONE},
.sample_fmts = (enum SampleFormat[]) {
SAMPLE_FMT_S16,SAMPLE_FMT_NONE
},
};