diff options
| author | Diego Biurrun <diego@biurrun.de> | 2009-09-29 11:43:58 +0000 |
|---|---|---|
| committer | Diego Biurrun <diego@biurrun.de> | 2009-09-29 11:43:58 +0000 |
| commit | a7adcf29cf4674d45cbc885b1eda6c22657a224b (patch) | |
| tree | ca76b97c0a07a5ca557d7c1014edb7361482fbca /libavcodec/vorbis_dec.c | |
| parent | badce93dad3585f2c3fafe9ea5a2f85810367db6 (diff) | |
whitespace cosmetics, prettyprinting, K&R coding style
Originally committed as revision 20080 to svn://svn.ffmpeg.org/ffmpeg/trunk
Diffstat (limited to 'libavcodec/vorbis_dec.c')
| -rw-r--r-- | libavcodec/vorbis_dec.c | 1131 |
1 files changed, 563 insertions, 568 deletions
diff --git a/libavcodec/vorbis_dec.c b/libavcodec/vorbis_dec.c index 3f5de176c1..f9dd08833f 100644 --- a/libavcodec/vorbis_dec.c +++ b/libavcodec/vorbis_dec.c @@ -2,7 +2,7 @@ * @file libavcodec/vorbis_dec.c * Vorbis I decoder * @author Denes Balatoni ( dbalatoni programozo hu ) - + * * This file is part of FFmpeg. * * FFmpeg is free software; you can redistribute it and/or @@ -36,8 +36,8 @@ #define V_NB_BITS 8 #define V_NB_BITS2 11 -#define V_MAX_VLCS (1<<16) -#define V_MAX_PARTITIONS (1<<20) +#define V_MAX_VLCS (1 << 16) +#define V_MAX_PARTITIONS (1 << 20) #ifndef V_DEBUG #define AV_DEBUG(...) @@ -55,7 +55,7 @@ typedef struct { unsigned int nb_bits; } vorbis_codebook; -typedef union vorbis_floor_u vorbis_floor_data; +typedef union vorbis_floor_u vorbis_floor_data; typedef struct vorbis_floor0_s vorbis_floor0; typedef struct vorbis_floor1_s vorbis_floor1; struct vorbis_context_s; @@ -67,16 +67,16 @@ typedef struct { vorbis_floor_decode_func decode; union vorbis_floor_u { struct vorbis_floor0_s { - uint_fast8_t order; + uint_fast8_t order; uint_fast16_t rate; uint_fast16_t bark_map_size; - int_fast32_t * map[2]; + int_fast32_t *map[2]; uint_fast32_t map_size[2]; - uint_fast8_t amplitude_bits; - uint_fast8_t amplitude_offset; - uint_fast8_t num_books; - uint_fast8_t * book_list; - float * lsp; + uint_fast8_t amplitude_bits; + uint_fast8_t amplitude_offset; + uint_fast8_t num_books; + uint_fast8_t *book_list; + float *lsp; } t0; struct vorbis_floor1_s { uint_fast8_t partitions; @@ -88,7 +88,7 @@ typedef struct { int_fast16_t subclass_books[16][8]; uint_fast8_t multiplier; uint_fast16_t x_list_dim; - vorbis_floor1_entry * list; + vorbis_floor1_entry *list; } t1; } data; } vorbis_floor; @@ -98,27 +98,27 @@ typedef struct { uint_fast32_t begin; uint_fast32_t end; uint_fast32_t partition_size; - uint_fast8_t classifications; - uint_fast8_t classbook; - int_fast16_t books[64][8]; - uint_fast8_t maxpass; + uint_fast8_t classifications; + uint_fast8_t classbook; + int_fast16_t books[64][8]; + uint_fast8_t maxpass; } vorbis_residue; typedef struct { - uint_fast8_t submaps; + uint_fast8_t submaps; uint_fast16_t coupling_steps; uint_fast8_t *magnitude; uint_fast8_t *angle; uint_fast8_t *mux; - uint_fast8_t submap_floor[16]; - uint_fast8_t submap_residue[16]; + uint_fast8_t submap_floor[16]; + uint_fast8_t submap_residue[16]; } vorbis_mapping; typedef struct { - uint_fast8_t blockflag; + uint_fast8_t blockflag; uint_fast16_t windowtype; uint_fast16_t transformtype; - uint_fast8_t mapping; + uint_fast8_t mapping; } vorbis_mode; typedef struct vorbis_context_s { @@ -127,30 +127,30 @@ typedef struct vorbis_context_s { DSPContext dsp; FFTContext mdct[2]; - uint_fast8_t first_frame; + uint_fast8_t first_frame; uint_fast32_t version; - uint_fast8_t audio_channels; + uint_fast8_t audio_channels; uint_fast32_t audio_samplerate; uint_fast32_t bitrate_maximum; uint_fast32_t bitrate_nominal; uint_fast32_t bitrate_minimum; uint_fast32_t blocksize[2]; - const float * win[2]; + const float *win[2]; uint_fast16_t codebook_count; vorbis_codebook *codebooks; - uint_fast8_t floor_count; + uint_fast8_t floor_count; vorbis_floor *floors; - uint_fast8_t residue_count; + uint_fast8_t residue_count; vorbis_residue *residues; - uint_fast8_t mapping_count; + uint_fast8_t mapping_count; vorbis_mapping *mappings; - uint_fast8_t mode_count; - vorbis_mode *modes; - uint_fast8_t mode_number; // mode number for the current packet - uint_fast8_t previous_window; - float *channel_residues; - float *channel_floors; - float *saved; + uint_fast8_t mode_count; + vorbis_mode *modes; + uint_fast8_t mode_number; // mode number for the current packet + uint_fast8_t previous_window; + float *channel_residues; + float *channel_floors; + float *saved; uint_fast32_t add_bias; // for float->int conversion uint_fast32_t exp_bias; } vorbis_context; @@ -158,14 +158,14 @@ typedef struct vorbis_context_s { /* Helper functions */ #define BARK(x) \ - (13.1f*atan(0.00074f*(x))+2.24f*atan(1.85e-8f*(x)*(x))+1e-4f*(x)) + (13.1f * atan(0.00074f * (x)) + 2.24f * atan(1.85e-8f * (x) * (x)) + 1e-4f * (x)) static float vorbisfloat2float(uint_fast32_t val) { - double mant=val&0x1fffff; - long exp=(val&0x7fe00000L)>>21; - if (val&0x80000000) - mant=-mant; + double mant = val & 0x1fffff; + long exp = (val & 0x7fe00000L) >> 21; + if (val & 0x80000000) + mant = -mant; return ldexp(mant, exp - 20 - 768); } @@ -186,14 +186,14 @@ static void vorbis_free(vorbis_context *vc) ff_mdct_end(&vc->mdct[0]); ff_mdct_end(&vc->mdct[1]); - for(i=0;i<vc->codebook_count;++i) { + for (i = 0; i < vc->codebook_count; ++i) { av_free(vc->codebooks[i].codevectors); free_vlc(&vc->codebooks[i].vlc); } av_freep(&vc->codebooks); - for(i=0;i<vc->floor_count;++i) { - if(vc->floors[i].floor_type==0) { + for (i = 0; i < vc->floor_count; ++i) { + if (vc->floors[i].floor_type == 0) { av_free(vc->floors[i].data.t0.map[0]); av_free(vc->floors[i].data.t0.map[1]); av_free(vc->floors[i].data.t0.book_list); @@ -204,7 +204,7 @@ static void vorbis_free(vorbis_context *vc) } av_freep(&vc->floors); - for(i=0;i<vc->mapping_count;++i) { + for (i = 0; i < vc->mapping_count; ++i) { av_free(vc->mappings[i].magnitude); av_free(vc->mappings[i].angle); av_free(vc->mappings[i].mux); @@ -219,91 +219,91 @@ static void vorbis_free(vorbis_context *vc) static int vorbis_parse_setup_hdr_codebooks(vorbis_context *vc) { uint_fast16_t cb; - uint8_t *tmp_vlc_bits; + uint8_t *tmp_vlc_bits; uint32_t *tmp_vlc_codes; - GetBitContext *gb=&vc->gb; + GetBitContext *gb = &vc->gb; - vc->codebook_count=get_bits(gb,8)+1; + vc->codebook_count = get_bits(gb, 8) + 1; AV_DEBUG(" Codebooks: %d \n", vc->codebook_count); - vc->codebooks=av_mallocz(vc->codebook_count * sizeof(vorbis_codebook)); - tmp_vlc_bits =av_mallocz(V_MAX_VLCS * sizeof(uint8_t)); - tmp_vlc_codes=av_mallocz(V_MAX_VLCS * sizeof(uint32_t)); + vc->codebooks = av_mallocz(vc->codebook_count * sizeof(vorbis_codebook)); + tmp_vlc_bits = av_mallocz(V_MAX_VLCS * sizeof(uint8_t)); + tmp_vlc_codes = av_mallocz(V_MAX_VLCS * sizeof(uint32_t)); - for(cb=0;cb<vc->codebook_count;++cb) { - vorbis_codebook *codebook_setup=&vc->codebooks[cb]; + for (cb = 0; cb < vc->codebook_count; ++cb) { + vorbis_codebook *codebook_setup = &vc->codebooks[cb]; uint_fast8_t ordered; - uint_fast32_t t, used_entries=0; + uint_fast32_t t, used_entries = 0; uint_fast32_t entries; AV_DEBUG(" %d. Codebook \n", cb); - if (get_bits(gb, 24)!=0x564342) { + if (get_bits(gb, 24) != 0x564342) { av_log(vc->avccontext, AV_LOG_ERROR, " %"PRIdFAST16". Codebook setup data corrupt. \n", cb); goto error; } codebook_setup->dimensions=get_bits(gb, 16); - if (codebook_setup->dimensions>16||codebook_setup->dimensions==0) { + if (codebook_setup->dimensions > 16 || codebook_setup->dimensions == 0) { av_log(vc->avccontext, AV_LOG_ERROR, " %"PRIdFAST16". Codebook's dimension is invalid (%d). \n", cb, codebook_setup->dimensions); goto error; } - entries=get_bits(gb, 24); - if (entries>V_MAX_VLCS) { + entries = get_bits(gb, 24); + if (entries > V_MAX_VLCS) { av_log(vc->avccontext, AV_LOG_ERROR, " %"PRIdFAST16". Codebook has too many entries (%"PRIdFAST32"). \n", cb, entries); goto error; } - ordered=get_bits1(gb); + ordered = get_bits1(gb); AV_DEBUG(" codebook_dimensions %d, codebook_entries %d \n", codebook_setup->dimensions, entries); if (!ordered) { uint_fast16_t ce; - uint_fast8_t flag; - uint_fast8_t sparse=get_bits1(gb); + uint_fast8_t flag; + uint_fast8_t sparse = get_bits1(gb); AV_DEBUG(" not ordered \n"); if (sparse) { AV_DEBUG(" sparse \n"); - used_entries=0; - for(ce=0;ce<entries;++ce) { - flag=get_bits1(gb); + used_entries = 0; + for (ce = 0; ce < entries; ++ce) { + flag = get_bits1(gb); if (flag) { - tmp_vlc_bits[ce]=get_bits(gb, 5)+1; + tmp_vlc_bits[ce] = get_bits(gb, 5) + 1; ++used_entries; } else - tmp_vlc_bits[ce]=0; + tmp_vlc_bits[ce] = 0; } } else { AV_DEBUG(" not sparse \n"); - used_entries=entries; - for(ce=0;ce<entries;++ce) - tmp_vlc_bits[ce]=get_bits(gb, 5)+1; + used_entries = entries; + for (ce = 0; ce < entries; ++ce) + tmp_vlc_bits[ce] = get_bits(gb, 5) + 1; } } else { - uint_fast16_t current_entry=0; - uint_fast8_t current_length=get_bits(gb, 5)+1; + uint_fast16_t current_entry = 0; + uint_fast8_t current_length = get_bits(gb, 5)+1; AV_DEBUG(" ordered, current length: %d \n", current_length); //FIXME - used_entries=entries; - for(;current_entry<used_entries && current_length <= 32;++current_length) { + used_entries = entries; + for (; current_entry < used_entries && current_length <= 32; ++current_length) { uint_fast16_t i, number; AV_DEBUG(" number bits: %d ", ilog(entries - current_entry)); - number=get_bits(gb, ilog(entries - current_entry)); + number = get_bits(gb, ilog(entries - current_entry)); AV_DEBUG(" number: %d \n", number); - for(i=current_entry;i<number+current_entry;++i) - if (i<used_entries) - tmp_vlc_bits[i]=current_length; + for (i = current_entry; i < number+current_entry; ++i) + if (i < used_entries) + tmp_vlc_bits[i] = current_length; current_entry+=number; } @@ -313,70 +313,70 @@ static int vorbis_parse_setup_hdr_codebooks(vorbis_context *vc) } } - codebook_setup->lookup_type=get_bits(gb, 4); + codebook_setup->lookup_type = get_bits(gb, 4); - AV_DEBUG(" lookup type: %d : %s \n", codebook_setup->lookup_type, codebook_setup->lookup_type ? "vq" : "no lookup" ); + AV_DEBUG(" lookup type: %d : %s \n", codebook_setup->lookup_type, codebook_setup->lookup_type ? "vq" : "no lookup"); // If the codebook is used for (inverse) VQ, calculate codevectors. - if (codebook_setup->lookup_type==1) { + if (codebook_setup->lookup_type == 1) { uint_fast16_t i, j, k; - uint_fast16_t codebook_lookup_values=ff_vorbis_nth_root(entries, codebook_setup->dimensions); + uint_fast16_t codebook_lookup_values = ff_vorbis_nth_root(entries, codebook_setup->dimensions); uint_fast16_t codebook_multiplicands[codebook_lookup_values]; - float codebook_minimum_value=vorbisfloat2float(get_bits_long(gb, 32)); - float codebook_delta_value=vorbisfloat2float(get_bits_long(gb, 32)); - uint_fast8_t codebook_value_bits=get_bits(gb, 4)+1; - uint_fast8_t codebook_sequence_p=get_bits1(gb); + float codebook_minimum_value = vorbisfloat2float(get_bits_long(gb, 32)); + float codebook_delta_value = vorbisfloat2float(get_bits_long(gb, 32)); + uint_fast8_t codebook_value_bits = get_bits(gb, 4)+1; + uint_fast8_t codebook_sequence_p = get_bits1(gb); AV_DEBUG(" We expect %d numbers for building the codevectors. \n", codebook_lookup_values); AV_DEBUG(" delta %f minmum %f \n", codebook_delta_value, codebook_minimum_value); - for(i=0;i<codebook_lookup_values;++i) { - codebook_multiplicands[i]=get_bits(gb, codebook_value_bits); + for (i = 0; i < codebook_lookup_values; ++i) { + codebook_multiplicands[i] = get_bits(gb, codebook_value_bits); AV_DEBUG(" multiplicands*delta+minmum : %e \n", (float)codebook_multiplicands[i]*codebook_delta_value+codebook_minimum_value); AV_DEBUG(" multiplicand %d \n", codebook_multiplicands[i]); } // Weed out unused vlcs and build codevector vector - codebook_setup->codevectors=used_entries ? av_mallocz(used_entries*codebook_setup->dimensions * sizeof(float)) : NULL; - for(j=0, i=0;i<entries;++i) { - uint_fast8_t dim=codebook_setup->dimensions; + codebook_setup->codevectors = used_entries ? av_mallocz(used_entries*codebook_setup->dimensions * sizeof(float)) : NULL; + for (j = 0, i = 0; i < entries; ++i) { + uint_fast8_t dim = codebook_setup->dimensions; if (tmp_vlc_bits[i]) { - float last=0.0; - uint_fast32_t lookup_offset=i; + float last = 0.0; + uint_fast32_t lookup_offset = i; #ifdef V_DEBUG av_log(vc->avccontext, AV_LOG_INFO, "Lookup offset %d ,", i); #endif - for(k=0;k<dim;++k) { + for (k = 0; k < dim; ++k) { uint_fast32_t multiplicand_offset = lookup_offset % codebook_lookup_values; - codebook_setup->codevectors[j*dim+k]=codebook_multiplicands[multiplicand_offset]*codebook_delta_value+codebook_minimum_value+last; + codebook_setup->codevectors[j * dim + k] = codebook_multiplicands[multiplicand_offset] * codebook_delta_value + codebook_minimum_value + last; if (codebook_sequence_p) - last=codebook_setup->codevectors[j*dim+k]; + last = codebook_setup->codevectors[j * dim + k]; lookup_offset/=codebook_lookup_values; } - tmp_vlc_bits[j]=tmp_vlc_bits[i]; + tmp_vlc_bits[j] = tmp_vlc_bits[i]; #ifdef V_DEBUG av_log(vc->avccontext, AV_LOG_INFO, "real lookup offset %d, vector: ", j); - for(k=0;k<dim;++k) - av_log(vc->avccontext, AV_LOG_INFO, " %f ", codebook_setup->codevectors[j*dim+k]); + for (k = 0; k < dim; ++k) + av_log(vc->avccontext, AV_LOG_INFO, " %f ", codebook_setup->codevectors[j * dim + k]); av_log(vc->avccontext, AV_LOG_INFO, "\n"); #endif ++j; } } - if (j!=used_entries) { + if (j != used_entries) { av_log(vc->avccontext, AV_LOG_ERROR, "Bug in codevector vector building code. \n"); goto error; } - entries=used_entries; - } else if (codebook_setup->lookup_type>=2) { + entries = used_entries; + } else if (codebook_setup->lookup_type >= 2) { av_log(vc->avccontext, AV_LOG_ERROR, "Codebook lookup type not supported. \n"); goto error; } @@ -386,17 +386,17 @@ static int vorbis_parse_setup_hdr_codebooks(vorbis_context *vc) av_log(vc->avccontext, AV_LOG_ERROR, " Invalid code lengths while generating vlcs. \n"); goto error; } - codebook_setup->maxdepth=0; - for(t=0;t<entries;++t) - if (tmp_vlc_bits[t]>=codebook_setup->maxdepth) - codebook_setup->maxdepth=tmp_vlc_bits[t]; + codebook_setup->maxdepth = 0; + for (t = 0; t < entries; ++t) + if (tmp_vlc_bits[t] >= codebook_setup->maxdepth) + codebook_setup->maxdepth = tmp_vlc_bits[t]; - if(codebook_setup->maxdepth > 3*V_NB_BITS) - codebook_setup->nb_bits=V_NB_BITS2; + if (codebook_setup->maxdepth > 3 * V_NB_BITS) + codebook_setup->nb_bits = V_NB_BITS2; else - codebook_setup->nb_bits=V_NB_BITS; + codebook_setup->nb_bits = V_NB_BITS; - codebook_setup->maxdepth=(codebook_setup->maxdepth+codebook_setup->nb_bits-1)/codebook_setup->nb_bits; + codebook_setup->maxdepth = (codebook_setup->maxdepth+codebook_setup->nb_bits - 1) / codebook_setup->nb_bits; if (init_vlc(&codebook_setup->vlc, codebook_setup->nb_bits, entries, tmp_vlc_bits, sizeof(*tmp_vlc_bits), sizeof(*tmp_vlc_bits), tmp_vlc_codes, sizeof(*tmp_vlc_codes), sizeof(*tmp_vlc_codes), INIT_VLC_LE)) { av_log(vc->avccontext, AV_LOG_ERROR, " Error generating vlc tables. \n"); @@ -419,12 +419,12 @@ error: static int vorbis_parse_setup_hdr_tdtransforms(vorbis_context *vc) { - GetBitContext *gb=&vc->gb; + GetBitContext *gb = &vc->gb; uint_fast8_t i; - uint_fast8_t vorbis_time_count=get_bits(gb, 6)+1; + uint_fast8_t vorbis_time_count = get_bits(gb, 6) + 1; - for(i=0;i<vorbis_time_count;++i) { - uint_fast16_t vorbis_tdtransform=get_bits(gb, 16); + for (i = 0; i < vorbis_time_count; ++i) { + uint_fast16_t vorbis_tdtransform = get_bits(gb, 16); AV_DEBUG(" Vorbis time domain transform %d: %d \n", vorbis_time_count, vorbis_tdtransform); @@ -440,40 +440,40 @@ static int vorbis_parse_setup_hdr_tdtransforms(vorbis_context *vc) static uint_fast8_t vorbis_floor0_decode(vorbis_context *vc, vorbis_floor_data *vfu, float *vec); -static void create_map( vorbis_context * vc, uint_fast8_t floor_number ); +static void create_map(vorbis_context *vc, uint_fast8_t floor_number); static uint_fast8_t vorbis_floor1_decode(vorbis_context *vc, vorbis_floor_data *vfu, float *vec); static int vorbis_parse_setup_hdr_floors(vorbis_context *vc) { - GetBitContext *gb=&vc->gb; + GetBitContext *gb = &vc->gb; uint_fast16_t i,j,k; - vc->floor_count=get_bits(gb, 6)+1; + vc->floor_count = get_bits(gb, 6) + 1; - vc->floors=av_mallocz(vc->floor_count * sizeof(vorbis_floor)); + vc->floors = av_mallocz(vc->floor_count * sizeof(vorbis_floor)); - for (i=0;i<vc->floor_count;++i) { - vorbis_floor *floor_setup=&vc->floors[i]; + for (i = 0; i < vc->floor_count; ++i) { + vorbis_floor *floor_setup = &vc->floors[i]; - floor_setup->floor_type=get_bits(gb, 16); + floor_setup->floor_type = get_bits(gb, 16); AV_DEBUG(" %d. floor type %d \n", i, floor_setup->floor_type); - if (floor_setup->floor_type==1) { - uint_fast8_t maximum_class=0; - uint_fast8_t rangebits; - uint_fast16_t floor1_values=2; + if (floor_setup->floor_type == 1) { + uint_fast8_t maximum_class = 0; + uint_fast8_t rangebits; + uint_fast16_t floor1_values = 2; - floor_setup->decode=vorbis_floor1_decode; + floor_setup->decode = vorbis_floor1_decode; - floor_setup->data.t1.partitions=get_bits(gb, 5); + floor_setup->data.t1.partitions = get_bits(gb, 5); AV_DEBUG(" %d.floor: %d partitions \n", i, floor_setup->data.t1.partitions); - for(j=0;j<floor_setup->data.t1.partitions;++j) { - floor_setup->data.t1.partition_class[j]=get_bits(gb, 4); - if (floor_setup->data.t1.partition_class[j]>maximum_class) - maximum_class=floor_setup->data.t1.partition_class[j]; + for (j = 0; j < floor_setup->data.t1.partitions; ++j) { + floor_setup->data.t1.partition_class[j] = get_bits(gb, 4); + if (floor_setup->data.t1.partition_class[j] > maximum_class) + maximum_class = floor_setup->data.t1.partition_class[j]; AV_DEBUG(" %d. floor %d partition class %d \n", i, j, floor_setup->data.t1.partition_class[j]); @@ -481,53 +481,53 @@ static int vorbis_parse_setup_hdr_floors(vorbis_context *vc) AV_DEBUG(" maximum class %d \n", maximum_class); - floor_setup->data.t1.maximum_class=maximum_class; + floor_setup->data.t1.maximum_class = maximum_class; - for(j=0;j<=maximum_class;++j) { - floor_setup->data.t1.class_dimensions[j]=get_bits(gb, 3)+1; - floor_setup->data.t1.class_subclasses[j]=get_bits(gb, 2); + for (j = 0; j <= maximum_class; ++j) { + floor_setup->data.t1.class_dimensions[j] = get_bits(gb, 3) + 1; + floor_setup->data.t1.class_subclasses[j] = get_bits(gb, 2); AV_DEBUG(" %d floor %d class dim: %d subclasses %d \n", i, j, floor_setup->data.t1.class_dimensions[j], floor_setup->data.t1.class_subclasses[j]); if (floor_setup->data.t1.class_subclasses[j]) { - int bits=get_bits(gb, 8); - if (bits>=vc->codebook_count) { + int bits = get_bits(gb, 8); + if (bits >= vc->codebook_count) { av_log(vc->avccontext, AV_LOG_ERROR, "Masterbook index %d is out of range.\n", bits); return -1; } - floor_setup->data.t1.class_masterbook[j]=bits; + floor_setup->data.t1.class_masterbook[j] = bits; AV_DEBUG(" masterbook: %d \n", floor_setup->data.t1.class_masterbook[j]); } - for(k=0;k<(1<<floor_setup->data.t1.class_subclasses[j]);++k) { - int16_t bits=get_bits(gb, 8)-1; - if (bits!=-1 && bits>=vc->codebook_count) { + for (k = 0; k < (1 << floor_setup->data.t1.class_subclasses[j]); ++k) { + int16_t bits = get_bits(gb, 8) - 1; + if (bits != -1 && bits >= vc->codebook_count) { av_log(vc->avccontext, AV_LOG_ERROR, "Subclass book index %d is out of range.\n", bits); return -1; } - floor_setup->data.t1.subclass_books[j][k]=bits; + floor_setup->data.t1.subclass_books[j][k] = bits; AV_DEBUG(" book %d. : %d \n", k, floor_setup->data.t1.subclass_books[j][k]); } } - floor_setup->data.t1.multiplier=get_bits(gb, 2)+1; - floor_setup->data.t1.x_list_dim=2; + floor_setup->data.t1.multiplier = get_bits(gb, 2) + 1; + floor_setup->data.t1.x_list_dim = 2; - for(j=0;j<floor_setup->data.t1.partitions;++j) + for (j = 0; j < floor_setup->data.t1.partitions; ++j) floor_setup->data.t1.x_list_dim+=floor_setup->data.t1.class_dimensions[floor_setup->data.t1.partition_class[j]]; - floor_setup->data.t1.list=av_mallocz(floor_setup->data.t1.x_list_dim * sizeof(vorbis_floor1_entry)); + floor_setup->data.t1.list = av_mallocz(floor_setup->data.t1.x_list_dim * sizeof(vorbis_floor1_entry)); - rangebits=get_bits(gb, 4); + rangebits = get_bits(gb, 4); floor_setup->data.t1.list[0].x = 0; - floor_setup->data.t1.list[1].x = (1<<rangebits); + floor_setup->data.t1.list[1].x = (1 << rangebits); - for(j=0;j<floor_setup->data.t1.partitions;++j) { - for(k=0;k<floor_setup->data.t1.class_dimensions[floor_setup->data.t1.partition_class[j]];++k,++floor1_values) { - floor_setup->data.t1.list[floor1_values].x=get_bits(gb, rangebits); + for (j = 0; j < floor_setup->data.t1.partitions; ++j) { + for (k = 0; k < floor_setup->data.t1.class_dimensions[floor_setup->data.t1.partition_class[j]]; ++k, ++floor1_values) { + floor_setup->data.t1.list[floor1_values].x = get_bits(gb, rangebits); AV_DEBUG(" %d. floor1 Y coord. %d \n", floor1_values, floor_setup->data.t1.list[floor1_values].x); } @@ -535,15 +535,15 @@ static int vorbis_parse_setup_hdr_floors(vorbis_context *vc) // Precalculate order of x coordinates - needed for decode ff_vorbis_ready_floor1_list(floor_setup->data.t1.list, floor_setup->data.t1.x_list_dim); - } else if(floor_setup->floor_type==0) { - uint_fast8_t max_codebook_dim=0; + } else if (floor_setup->floor_type == 0) { + uint_fast8_t max_codebook_dim = 0; - floor_setup->decode=vorbis_floor0_decode; + floor_setup->decode = vorbis_floor0_decode; - floor_setup->data.t0.order=get_bits(gb, 8); - floor_setup->data.t0.rate=get_bits(gb, 16); - floor_setup->data.t0.bark_map_size=get_bits(gb, 16); - floor_setup->data.t0.amplitude_bits=get_bits(gb, 6); + floor_setup->data.t0.order = get_bits(gb, 8); + floor_setup->data.t0.rate = get_bits(gb, 16); + floor_setup->data.t0.bark_map_size = get_bits(gb, 16); + floor_setup->data.t0.amplitude_bits = get_bits(gb, 6); /* zero would result in a div by zero later * * 2^0 - 1 == 0 */ if (floor_setup->data.t0.amplitude_bits == 0) { @@ -551,38 +551,38 @@ static int vorbis_parse_setup_hdr_floors(vorbis_context *vc) "Floor 0 amplitude bits is 0.\n"); return -1; } - floor_setup->data.t0.amplitude_offset=get_bits(gb, 8); - floor_setup->data.t0.num_books=get_bits(gb, 4)+1; + floor_setup->data.t0.amplitude_offset = get_bits(gb, 8); + floor_setup->data.t0.num_books = get_bits(gb, 4) + 1; /* allocate mem for booklist */ - floor_setup->data.t0.book_list= + floor_setup->data.t0.book_list = av_malloc(floor_setup->data.t0.num_books); - if(!floor_setup->data.t0.book_list) + if (!floor_setup->data.t0.book_list) return -1; /* read book indexes */ { int idx; uint_fast8_t book_idx; - for (idx=0;idx<floor_setup->data.t0.num_books;++idx) { - book_idx=get_bits(gb, 8); - if (book_idx>=vc->codebook_count) + for (idx = 0; idx < floor_setup->data.t0.num_books; ++idx) { + book_idx = get_bits(gb, 8); + if (book_idx >= vc->codebook_count) return -1; - floor_setup->data.t0.book_list[idx]=book_idx; + floor_setup->data.t0.book_list[idx] = book_idx; if (vc->codebooks[book_idx].dimensions > max_codebook_dim) - max_codebook_dim=vc->codebooks[book_idx].dimensions; + max_codebook_dim = vc->codebooks[book_idx].dimensions; } } - create_map( vc, i ); + create_map(vc, i); /* allocate mem for lsp coefficients */ { /* codebook dim is for padding if codebook dim doesn't * * divide order+1 then we need to read more data */ - floor_setup->data.t0.lsp= + floor_setup->data.t0.lsp = av_malloc((floor_setup->data.t0.order+1 + max_codebook_dim) * sizeof(float)); - if(!floor_setup->data.t0.lsp) + if (!floor_setup->data.t0.lsp) return -1; } @@ -601,10 +601,10 @@ static int vorbis_parse_setup_hdr_floors(vorbis_context *vc) floor_setup->data.t0.book_list); { int idx; - for (idx=0;idx<floor_setup->data.t0.num_books;++idx) { - AV_DEBUG( " Book %d: %u\n", - idx+1, - floor_setup->data.t0.book_list[idx] ); + for (idx = 0; idx < floor_setup->data.t0.num_books; ++idx) { + AV_DEBUG(" Book %d: %u\n", + idx+1, + floor_setup->data.t0.book_list[idx]); } } #endif @@ -620,38 +620,38 @@ static int vorbis_parse_setup_hdr_floors(vorbis_context *vc) static int vorbis_parse_setup_hdr_residues(vorbis_context *vc) { - GetBitContext *gb=&vc->gb; + GetBitContext *gb = &vc->gb; uint_fast8_t i, j, k; - vc->residue_count=get_bits(gb, 6)+1; - vc->residues=av_mallocz(vc->residue_count * sizeof(vorbis_residue)); + vc->residue_count = get_bits(gb, 6)+1; + vc->residues = av_mallocz(vc->residue_count * sizeof(vorbis_residue)); AV_DEBUG(" There are %d residues. \n", vc->residue_count); - for(i=0;i<vc->residue_count;++i) { - vorbis_residue *res_setup=&vc->residues[i]; + for (i = 0; i < vc->residue_count; ++i) { + vorbis_residue *res_setup = &vc->residues[i]; uint_fast8_t cascade[64]; uint_fast8_t high_bits; uint_fast8_t low_bits; - res_setup->type=get_bits(gb, 16); + res_setup->type = get_bits(gb, 16); AV_DEBUG(" %d. residue type %d \n", i, res_setup->type); - res_setup->begin=get_bits(gb, 24); - res_setup->end=get_bits(gb, 24); - res_setup->partition_size=get_bits(gb, 24)+1; + res_setup->begin = get_bits(gb, 24); + res_setup->end = get_bits(gb, 24); + res_setup->partition_size = get_bits(gb, 24) + 1; /* Validations to prevent a buffer overflow later. */ - if (res_setup->begin>res_setup->end - || res_setup->end>vc->blocksize[1]/(res_setup->type==2?1:2) - || (res_setup->end-res_setup->begin)/res_setup->partition_size>V_MAX_PARTITIONS) { - av_log(vc->avccontext, AV_LOG_ERROR, "partition out of bounds: type, begin, end, size, blocksize: %"PRIdFAST16", %"PRIdFAST32", %"PRIdFAST32", %"PRIdFAST32", %"PRIdFAST32"\n", res_setup->type, res_setup->begin, res_setup->end, res_setup->partition_size, vc->blocksize[1]/2); + if (res_setup->begin>res_setup->end || + res_setup->end>vc->blocksize[1] / (res_setup->type == 2 ? 1 : 2) || + (res_setup->end-res_setup->begin) / res_setup->partition_size > V_MAX_PARTITIONS) { + av_log(vc->avccontext, AV_LOG_ERROR, "partition out of bounds: type, begin, end, size, blocksize: %"PRIdFAST16", %"PRIdFAST32", %"PRIdFAST32", %"PRIdFAST32", %"PRIdFAST32"\n", res_setup->type, res_setup->begin, res_setup->end, res_setup->partition_size, vc->blocksize[1] / 2); return -1; } - res_setup->classifications=get_bits(gb, 6)+1; - res_setup->classbook=get_bits(gb, 8); - if (res_setup->classbook>=vc->codebook_count) { + res_setup->classifications = get_bits(gb, 6) + 1; + res_setup->classbook = get_bits(gb, 8); + if (res_setup->classbook >= vc->codebook_count) { av_log(vc->avccontext, AV_LOG_ERROR, "classbook value %d out of range. \n", res_setup->classbook); return -1; } @@ -659,33 +659,33 @@ static int vorbis_parse_setup_hdr_residues(vorbis_context *vc) AV_DEBUG(" begin %d end %d part.size %d classif.s %d classbook %d \n", res_setup->begin, res_setup->end, res_setup->partition_size, res_setup->classifications, res_setup->classbook); - for(j=0;j<res_setup->classifications;++j) { - high_bits=0; - low_bits=get_bits(gb, 3); + for (j = 0; j < res_setup->classifications; ++j) { + high_bits = 0; + low_bits = get_bits(gb, 3); if (get_bits1(gb)) - high_bits=get_bits(gb, 5); - cascade[j]=(high_bits<<3)+low_bits; + high_bits = get_bits(gb, 5); + cascade[j] = (high_bits << 3) + low_bits; AV_DEBUG(" %d class casscade depth: %d \n", j, ilog(cascade[j])); } - res_setup->maxpass=0; - for(j=0;j<res_setup->classifications;++j) { - for(k=0;k<8;++k) { - if (cascade[j]&(1<<k)) { - int bits=get_bits(gb, 8); - if (bits>=vc->codebook_count) { + res_setup->maxpass = 0; + for (j = 0; j < res_setup->classifications; ++j) { + for (k = 0; k < 8; ++k) { + if (cascade[j]&(1 << k)) { + int bits = get_bits(gb, 8); + if (bits >= vc->codebook_count) { av_log(vc->avccontext, AV_LOG_ERROR, "book value %d out of range. \n", bits); return -1; } - res_setup->books[j][k]=bits; + res_setup->books[j][k] = bits; AV_DEBUG(" %d class casscade depth %d book: %d \n", j, k, res_setup->books[j][k]); if (k>res_setup->maxpass) - res_setup->maxpass=k; + res_setup->maxpass = k; } else { - res_setup->books[j][k]=-1; + res_setup->books[j][k] = -1; } } } @@ -697,75 +697,75 @@ static int vorbis_parse_setup_hdr_residues(vorbis_context *vc) static int vorbis_parse_setup_hdr_mappings(vorbis_context *vc) { - GetBitContext *gb=&vc->gb; + GetBitContext *gb = &vc->gb; uint_fast8_t i, j; - vc->mapping_count=get_bits(gb, 6)+1; - vc->mappings=av_mallocz(vc->mapping_count * sizeof(vorbis_mapping)); + vc->mapping_count = get_bits(gb, 6)+1; + vc->mappings = av_mallocz(vc->mapping_count * sizeof(vorbis_mapping)); AV_DEBUG(" There are %d mappings. \n", vc->mapping_count); - for(i=0;i<vc->mapping_count;++i) { - vorbis_mapping *mapping_setup=&vc->mappings[i]; + for (i = 0; i < vc->mapping_count; ++i) { + vorbis_mapping *mapping_setup = &vc->mappings[i]; if (get_bits(gb, 16)) { av_log(vc->avccontext, AV_LOG_ERROR, "Other mappings than type 0 are not compliant with the Vorbis I specification. \n"); return -1; } if (get_bits1(gb)) { - mapping_setup->submaps=get_bits(gb, 4)+1; + mapping_setup->submaps = get_bits(gb, 4) + 1; } else { - mapping_setup->submaps=1; + mapping_setup->submaps = 1; } if (get_bits1(gb)) { - mapping_setup->coupling_steps=get_bits(gb, 8)+1; - mapping_setup->magnitude=av_mallocz(mapping_setup->coupling_steps * sizeof(uint_fast8_t)); - mapping_setup->angle =av_mallocz(mapping_setup->coupling_steps * sizeof(uint_fast8_t)); - for(j=0;j<mapping_setup->coupling_steps;++j) { - mapping_setup->magnitude[j]=get_bits(gb, ilog(vc->audio_channels-1)); - mapping_setup->angle[j]=get_bits(gb, ilog(vc->audio_channels-1)); - if (mapping_setup->magnitude[j]>=vc->audio_channels) { + mapping_setup->coupling_steps = get_bits(gb, 8) + 1; + mapping_setup->magnitude = av_mallocz(mapping_setup->coupling_steps * sizeof(uint_fast8_t)); + mapping_setup->angle = av_mallocz(mapping_setup->coupling_steps * sizeof(uint_fast8_t)); + for (j = 0; j < mapping_setup->coupling_steps; ++j) { + mapping_setup->magnitude[j] = get_bits(gb, ilog(vc->audio_channels - 1)); + mapping_setup->angle[j] = get_bits(gb, ilog(vc->audio_channels - 1)); + if (mapping_setup->magnitude[j] >= vc->audio_channels) { av_log(vc->avccontext, AV_LOG_ERROR, "magnitude channel %d out of range. \n", mapping_setup->magnitude[j]); return -1; } - if (mapping_setup->angle[j]>=vc->audio_channels) { + if (mapping_setup->angle[j] >= vc->audio_channels) { av_log(vc->avccontext, AV_LOG_ERROR, "angle channel %d out of range. \n", mapping_setup->angle[j]); return -1; } } } else { - mapping_setup->coupling_steps=0; + mapping_setup->coupling_steps = 0; } AV_DEBUG(" %d mapping coupling steps: %d \n", i, mapping_setup->coupling_steps); - if(get_bits(gb, 2)) { + if (get_bits(gb, 2)) { av_log(vc->avccontext, AV_LOG_ERROR, "%d. mapping setup data invalid. \n", i); return -1; // following spec. } if (mapping_setup->submaps>1) { - mapping_setup->mux=av_mallocz(vc->audio_channels * sizeof(uint_fast8_t)); - for(j=0;j<vc->audio_channels;++j) - mapping_setup->mux[j]=get_bits(gb, 4); + mapping_setup->mux = av_mallocz(vc->audio_channels * sizeof(uint_fast8_t)); + for (j = 0; j < vc->audio_channels; ++j) + mapping_setup->mux[j] = get_bits(gb, 4); } - for(j=0;j<mapping_setup->submaps;++j) { + for (j = 0; j < mapping_setup->submaps; ++j) { int bits; skip_bits(gb, 8); // FIXME check? - bits=get_bits(gb, 8); - if (bits>=vc->floor_count) { + bits = get_bits(gb, 8); + if (bits >= vc->floor_count) { av_log(vc->avccontext, AV_LOG_ERROR, "submap floor value %d out of range. \n", bits); return -1; } - mapping_setup->submap_floor[j]=bits; - bits=get_bits(gb, 8); - if (bits>=vc->residue_count) { + mapping_setup->submap_floor[j] = bits; + bits = get_bits(gb, 8); + if (bits >= vc->residue_count) { av_log(vc->avccontext, AV_LOG_ERROR, "submap residue value %d out of range. \n", bits); return -1; } - mapping_setup->submap_residue[j]=bits; + mapping_setup->submap_residue[j] = bits; AV_DEBUG(" %d mapping %d submap : floor %d, residue %d \n", i, j, mapping_setup->submap_floor[j], mapping_setup->submap_residue[j]); } @@ -775,36 +775,36 @@ static int vorbis_parse_setup_hdr_mappings(vorbis_context *vc) // Process modes part -static void create_map( vorbis_context * vc, uint_fast8_t floor_number ) +static void create_map(vorbis_context *vc, uint_fast8_t floor_number) { - vorbis_floor * floors=vc->floors; - vorbis_floor0 * vf; + vorbis_floor *floors = vc->floors; + vorbis_floor0 *vf; int idx; int_fast8_t blockflag; - int_fast32_t * map; + int_fast32_t *map; int_fast32_t n; //TODO: could theoretically be smaller? - for (blockflag=0;blockflag<2;++blockflag) { - n=vc->blocksize[blockflag]/2; - floors[floor_number].data.t0.map[blockflag]= - av_malloc((n+1) * sizeof(int_fast32_t)); // n+sentinel + for (blockflag = 0; blockflag < 2; ++blockflag) { + n = vc->blocksize[blockflag] / 2; + floors[floor_number].data.t0.map[blockflag] = + av_malloc((n+1) * sizeof(int_fast32_t)); // n + sentinel - map=floors[floor_number].data.t0.map[blockflag]; - vf=&floors[floor_number].data.t0; + map = floors[floor_number].data.t0.map[blockflag]; + vf = &floors[floor_number].data.t0; - for (idx=0; idx<n;++idx) { - map[idx]=floor( BARK((vf->rate*idx)/(2.0f*n)) * - ((vf->bark_map_size)/ - BARK(vf->rate/2.0f )) ); - if (vf->bark_map_size-1 < map[idx]) - map[idx]=vf->bark_map_size-1; - } - map[n]=-1; - vf->map_size[blockflag]=n; + for (idx = 0; idx < n; ++idx) { + map[idx] = floor(BARK((vf->rate * idx) / (2.0f * n)) * + ((vf->bark_map_size) / + BARK(vf->rate / 2.0f))); + if (vf->bark_map_size-1 < map[idx]) + map[idx] = vf->bark_map_size - 1; + } + map[n] = -1; + vf->map_size[blockflag] = n; } # ifdef V_DEBUG - for(idx=0;idx<=n;++idx) { + for (idx = 0; idx <= n; ++idx) { AV_DEBUG("floor0 map: map at pos %d is %d\n", idx, map[idx]); } @@ -813,22 +813,22 @@ static void create_map( vorbis_context * vc, uint_fast8_t floor_number ) static int vorbis_parse_setup_hdr_modes(vorbis_context *vc) { - GetBitContext *gb=&vc->gb; + GetBitContext *gb = &vc->gb; uint_fast8_t i; - vc->mode_count=get_bits(gb, 6)+1; - vc->modes=av_mallocz(vc->mode_count * sizeof(vorbis_mode)); + vc->mode_count = get_bits(gb, 6) + 1; + vc->modes = av_mallocz(vc->mode_count * sizeof(vorbis_mode)); AV_DEBUG(" There are %d modes.\n", vc->mode_count); - for(i=0;i<vc->mode_count;++i) { - vorbis_mode *mode_setup=&vc->modes[i]; + for (i = 0; i < vc->mode_count; ++i) { + vorbis_mode *mode_setup = &vc->modes[i]; - mode_setup->blockflag=get_bits1(gb); - mode_setup->windowtype=get_bits(gb, 16); //FIXME check - mode_setup->transformtype=get_bits(gb, 16); //FIXME check - mode_setup->mapping=get_bits(gb, 8); - if (mode_setup->mapping>=vc->mapping_count) { + mode_setup->blockflag = get_bits1(gb); + mode_setup->windowtype = get_bits(gb, 16); //FIXME check + mode_setup->transformtype = get_bits(gb, 16); //FIXME check + mode_setup->mapping = get_bits(gb, 8); + if (mode_setup->mapping >= vc->mapping_count) { av_log(vc->avccontext, AV_LOG_ERROR, "mode mapping value %d out of range. \n", mode_setup->mapping); return -1; } @@ -842,11 +842,11 @@ static int vorbis_parse_setup_hdr_modes(vorbis_context *vc) static int vorbis_parse_setup_hdr(vorbis_context *vc) { - GetBitContext *gb=&vc->gb; + GetBitContext *gb = &vc->gb; - if ((get_bits(gb, 8)!='v') || (get_bits(gb, 8)!='o') || - (get_bits(gb, 8)!='r') || (get_bits(gb, 8)!='b') || - (get_bits(gb, 8)!='i') || (get_bits(gb, 8)!='s')) { + if ((get_bits(gb, 8) != 'v') || (get_bits(gb, 8) != 'o') || + (get_bits(gb, 8) != 'r') || (get_bits(gb, 8) != 'b') || + (get_bits(gb, 8) != 'i') || (get_bits(gb, 8) != 's')) { av_log(vc->avccontext, AV_LOG_ERROR, " Vorbis setup header packet corrupt (no vorbis signature). \n"); return -1; } @@ -887,68 +887,67 @@ static int vorbis_parse_setup_hdr(vorbis_context *vc) static int vorbis_parse_id_hdr(vorbis_context *vc) { - GetBitContext *gb=&vc->gb; + GetBitContext *gb = &vc->gb; uint_fast8_t bl0, bl1; - if ((get_bits(gb, 8)!='v') || (get_bits(gb, 8)!='o') || - (get_bits(gb, 8)!='r') || (get_bits(gb, 8)!='b') || - (get_bits(gb, 8)!='i') || (get_bits(gb, 8)!='s')) { + if ((get_bits(gb, 8) != 'v') || (get_bits(gb, 8) != 'o') || + (get_bits(gb, 8) != 'r') || (get_bits(gb, 8) != 'b') || + (get_bits(gb, 8) != 'i') || (get_bits(gb, 8) != 's')) { av_log(vc->avccontext, AV_LOG_ERROR, " Vorbis id header packet corrupt (no vorbis signature). \n"); return -1; } - vc->version=get_bits_long(gb, 32); //FIXME check 0 - vc->audio_channels=get_bits(gb, 8); - if(vc->audio_channels <= 0){ + vc->version = get_bits_long(gb, 32); //FIXME check 0 + vc->audio_channels = get_bits(gb, 8); + if (vc->audio_channels <= 0) { av_log(vc->avccontext, AV_LOG_ERROR, "Invalid number of channels\n"); return -1; } - vc->audio_samplerate=get_bits_long(gb, 32); - if(vc->audio_samplerate <= 0){ + vc->audio_samplerate = get_bits_long(gb, 32); + if (vc->audio_samplerate <= 0) { av_log(vc->avccontext, AV_LOG_ERROR, "Invalid samplerate\n"); return -1; } - vc->bitrate_maximum=get_bits_long(gb, 32); - vc->bitrate_nominal=get_bits_long(gb, 32); - vc->bitrate_minimum=get_bits_long(gb, 32); - bl0=get_bits(gb, 4); - bl1=get_bits(gb, 4); - vc->blocksize[0]=(1<<bl0); - vc->blocksize[1]=(1<<bl1); - if (bl0>13 || bl0<6 || bl1>13 || bl1<6 || bl1<bl0) { + vc->bitrate_maximum = get_bits_long(gb, 32); + vc->bitrate_nominal = get_bits_long(gb, 32); + vc->bitrate_minimum = get_bits_long(gb, 32); + bl0 = get_bits(gb, 4); + bl1 = get_bits(gb, 4); + vc->blocksize[0] = (1 << bl0); + vc->blocksize[1] = (1 << bl1); + if (bl0 > 13 || bl0 < 6 || bl1 > 13 || bl1 < 6 || bl1 < bl0) { av_log(vc->avccontext, AV_LOG_ERROR, " Vorbis id header packet corrupt (illegal blocksize). \n"); return -3; } // output format int16 - if (vc->blocksize[1]/2 * vc->audio_channels * 2 > - AVCODEC_MAX_AUDIO_FRAME_SIZE) { + if (vc->blocksize[1] / 2 * vc->audio_channels * 2 > AVCODEC_MAX_AUDIO_FRAME_SIZE) { av_log(vc->avccontext, AV_LOG_ERROR, "Vorbis channel count makes " "output packets too large.\n"); return -4; } - vc->win[0]=ff_vorbis_vwin[bl0-6]; - vc->win[1]=ff_vorbis_vwin[bl1-6]; + vc->win[0] = ff_vorbis_vwin[bl0 - 6]; + vc->win[1] = ff_vorbis_vwin[bl1 - 6]; if ((get_bits1(gb)) == 0) { av_log(vc->avccontext, AV_LOG_ERROR, " Vorbis id header packet corrupt (framing flag not set). \n"); return -2; } - vc->channel_residues= av_malloc((vc->blocksize[1]/2)*vc->audio_channels * sizeof(float)); - vc->channel_floors = av_malloc((vc->blocksize[1]/2)*vc->audio_channels * sizeof(float)); - vc->saved = av_mallocz((vc->blocksize[1]/4)*vc->audio_channels * sizeof(float)); - vc->previous_window=0; + vc->channel_residues = av_malloc((vc->blocksize[1] / 2) * vc->audio_channels * sizeof(float)); + vc->channel_floors = av_malloc((vc->blocksize[1] / 2) * vc->audio_channels * sizeof(float)); + vc->saved = av_mallocz((vc->blocksize[1] / 4) * vc->audio_channels * sizeof(float)); + vc->previous_window = 0; - ff_mdct_init(&vc->mdct[0], bl0, 1, vc->exp_bias ? -(1<<15) : -1.0); - ff_mdct_init(&vc->mdct[1], bl1, 1, vc->exp_bias ? -(1<<15) : -1.0); + ff_mdct_init(&vc->mdct[0], bl0, 1, vc->exp_bias ? -(1 << 15) : -1.0); + ff_mdct_init(&vc->mdct[1], bl1, 1, vc->exp_bias ? -(1 << 15) : -1.0); AV_DEBUG(" vorbis version %d \n audio_channels %d \n audio_samplerate %d \n bitrate_max %d \n bitrate_nom %d \n bitrate_min %d \n blk_0 %d blk_1 %d \n ", vc->version, vc->audio_channels, vc->audio_samplerate, vc->bitrate_maximum, vc->bitrate_nominal, vc->bitrate_minimum, vc->blocksize[0], vc->blocksize[1]); /* - BLK=vc->blocksize[0]; - for(i=0;i<BLK/2;++i) { - vc->win[0][i]=sin(0.5*3.14159265358*(sin(((float)i+0.5)/(float)BLK*3.14159265358))*(sin(((float)i+0.5)/(float)BLK*3.14159265358))); + BLK = vc->blocksize[0]; + for (i = 0; i < BLK / 2; ++i) { + vc->win[0][i] = sin(0.5*3.14159265358*(sin(((float)i + 0.5) / (float)BLK*3.14159265358))*(sin(((float)i + 0.5) / (float)BLK*3.14159265358))); } */ @@ -960,8 +959,8 @@ static int vorbis_parse_id_hdr(vorbis_context *vc) static av_cold int vorbis_decode_init(AVCodecContext *avccontext) { vorbis_context *vc = avccontext->priv_data ; - uint8_t *headers = avccontext->extradata; - int headers_len=avccontext->extradata_size; + uint8_t *headers = avccontext->extradata; + int headers_len = avccontext->extradata_size; uint8_t *header_start[3]; int header_len[3]; GetBitContext *gb = &(vc->gb); @@ -970,12 +969,12 @@ static av_cold int vorbis_decode_init(AVCodecContext *avccontext) vc->avccontext = avccontext; dsputil_init(&vc->dsp, avccontext); - if(vc->dsp.float_to_int16_interleave == ff_float_to_int16_interleave_c) { + if (vc->dsp.float_to_int16_interleave == ff_float_to_int16_interleave_c) { vc->add_bias = 385; vc->exp_bias = 0; } else { vc->add_bias = 0; - vc->exp_bias = 15<<23; + vc->exp_bias = 15 << 23; } if (!headers_len) { @@ -989,8 +988,8 @@ static av_cold int vorbis_decode_init(AVCodecContext *avccontext) } init_get_bits(gb, header_start[0], header_len[0]*8); - hdr_type=get_bits(gb, 8); - if (hdr_type!=1) { + hdr_type = get_bits(gb, 8); + if (hdr_type != 1) { av_log(avccontext, AV_LOG_ERROR, "First header is not the id header.\n"); return -1; } @@ -1001,8 +1000,8 @@ static av_cold int vorbis_decode_init(AVCodecContext *avccontext) } init_get_bits(gb, header_start[2], header_len[2]*8); - hdr_type=get_bits(gb, 8); - if (hdr_type!=5) { + hdr_type = get_bits(gb, 8); + if (hdr_type != 5) { av_log(avccontext, AV_LOG_ERROR, "Third header is not the setup header.\n"); vorbis_free(vc); return -1; @@ -1013,10 +1012,10 @@ static av_cold int vorbis_decode_init(AVCodecContext *avccontext) return -1; } - avccontext->channels = vc->audio_channels; + avccontext->channels = vc->audio_channels; avccontext->sample_rate = vc->audio_samplerate; - avccontext->frame_size = FFMIN(vc->blocksize[0], vc->blocksize[1])>>2; - avccontext->sample_fmt = SAMPLE_FMT_S16; + avccontext->frame_size = FFMIN(vc->blocksize[0], vc->blocksize[1]) >> 2; + avccontext->sample_fmt = SAMPLE_FMT_S16; return 0 ; } @@ -1028,45 +1027,43 @@ static av_cold int vorbis_decode_init(AVCodecContext *avccontext) static uint_fast8_t vorbis_floor0_decode(vorbis_context *vc, vorbis_floor_data *vfu, float *vec) { - vorbis_floor0 * vf=&vfu->t0; - float * lsp=vf->lsp; + vorbis_floor0 *vf = &vfu->t0; + float *lsp = vf->lsp; uint_fast32_t amplitude; uint_fast32_t book_idx; - uint_fast8_t blockflag=vc->modes[vc->mode_number].blockflag; + uint_fast8_t blockflag = vc->modes[vc->mode_number].blockflag; - amplitude=get_bits(&vc->gb, vf->amplitude_bits); - if (amplitude>0) { + amplitude = get_bits(&vc->gb, vf->amplitude_bits); + if (amplitude > 0) { float last = 0; uint_fast16_t lsp_len = 0; uint_fast16_t idx; vorbis_codebook codebook; - book_idx=get_bits(&vc->gb, ilog(vf->num_books)); - if ( book_idx >= vf->num_books ) { - av_log( vc->avccontext, AV_LOG_ERROR, - "floor0 dec: booknumber too high!\n" ); - book_idx= 0; + book_idx = get_bits(&vc->gb, ilog(vf->num_books)); + if (book_idx >= vf->num_books) { + av_log(vc->avccontext, AV_LOG_ERROR, + "floor0 dec: booknumber too high!\n"); + book_idx = 0; //FIXME: look above } - AV_DEBUG( "floor0 dec: booknumber: %u\n", book_idx ); - codebook=vc->codebooks[vf->book_list[book_idx]]; + AV_DEBUG("floor0 dec: booknumber: %u\n", book_idx); + codebook = vc->codebooks[vf->book_list[book_idx]]; while (lsp_len<vf->order) { int vec_off; - AV_DEBUG( "floor0 dec: book dimension: %d\n", codebook.dimensions ); - AV_DEBUG( "floor0 dec: maximum depth: %d\n", codebook.maxdepth ); + AV_DEBUG("floor0 dec: book dimension: %d\n", codebook.dimensions); + AV_DEBUG("floor0 dec: maximum depth: %d\n", codebook.maxdepth); /* read temp vector */ - vec_off=get_vlc2(&vc->gb, - codebook.vlc.table, - codebook.nb_bits, - codebook.maxdepth ) * - codebook.dimensions; - AV_DEBUG( "floor0 dec: vector offset: %d\n", vec_off ); + vec_off = get_vlc2(&vc->gb, codebook.vlc.table, + codebook.nb_bits, codebook.maxdepth) + * codebook.dimensions; + AV_DEBUG("floor0 dec: vector offset: %d\n", vec_off); /* copy each vector component and add last to it */ - for (idx=0; idx<codebook.dimensions; ++idx) - lsp[lsp_len+idx]=codebook.codevectors[vec_off+idx]+last; - last=lsp[lsp_len+idx-1]; /* set last to last vector component */ + for (idx = 0; idx < codebook.dimensions; ++idx) + lsp[lsp_len+idx] = codebook.codevectors[vec_off+idx] + last; + last = lsp[lsp_len+idx-1]; /* set last to last vector component */ lsp_len += codebook.dimensions; } @@ -1074,59 +1071,57 @@ static uint_fast8_t vorbis_floor0_decode(vorbis_context *vc, /* DEBUG: output lsp coeffs */ { int idx; - for ( idx = 0; idx < lsp_len; ++idx ) - AV_DEBUG("floor0 dec: coeff at %d is %f\n", idx, lsp[idx] ); + for (idx = 0; idx < lsp_len; ++idx) + AV_DEBUG("floor0 dec: coeff at %d is %f\n", idx, lsp[idx]); } #endif /* synthesize floor output vector */ { int i; - int order=vf->order; - float wstep=M_PI/vf->bark_map_size; + int order = vf->order; + float wstep = M_PI / vf->bark_map_size; - for(i=0;i<order;i++) - lsp[i]=2.0f*cos(lsp[i]); + for (i = 0; i < order; i++) + lsp[i] = 2.0f * cos(lsp[i]); - AV_DEBUG("floor0 synth: map_size=%d; m=%d; wstep=%f\n", + AV_DEBUG("floor0 synth: map_size = %d; m = %d; wstep = %f\n", vf->map_size, order, wstep); - i=0; - while(i<vf->map_size[blockflag]) { - int j, iter_cond=vf->map[blockflag][i]; - float p=0.5f; - float q=0.5f; - float two_cos_w=2.0f*cos(wstep*iter_cond); // needed all times + i = 0; + while (i < vf->map_size[blockflag]) { + int j, iter_cond = vf->map[blockflag][i]; + float p = 0.5f; + float q = 0.5f; + float two_cos_w = 2.0f * cos(wstep * iter_cond); // needed all times /* similar part for the q and p products */ - for(j=0;j+1<order;j+=2) { - q *= lsp[j] -two_cos_w; - p *= lsp[j+1]-two_cos_w; + for (j = 0; j + 1 < order; j += 2) { + q *= lsp[j] - two_cos_w; + p *= lsp[j + 1] - two_cos_w; } - if(j==order) { // even order - p *= p*(2.0f-two_cos_w); - q *= q*(2.0f+two_cos_w); + if (j == order) { // even order + p *= p * (2.0f - two_cos_w); + q *= q * (2.0f + two_cos_w); } else { // odd order q *= two_cos_w-lsp[j]; // one more time for q /* final step and square */ - p *= p*(4.f-two_cos_w*two_cos_w); + p *= p * (4.f - two_cos_w * two_cos_w); q *= q; } /* calculate linear floor value */ { - q=exp( ( - ( (amplitude*vf->amplitude_offset)/ - (((1<<vf->amplitude_bits)-1) * sqrt(p+q)) ) - - vf->amplitude_offset ) * .11512925f - ); + q = exp((((amplitude*vf->amplitude_offset) / + (((1 << vf->amplitude_bits) - 1) * sqrt(p + q))) + - vf->amplitude_offset) * .11512925f); } /* fill vector */ do { - vec[i]=q; ++i; - } while (vf->map[blockflag][i]==iter_cond); + vec[i] = q; ++i; + } while (vf->map[blockflag][i] == iter_cond); } } } else { @@ -1142,10 +1137,10 @@ static uint_fast8_t vorbis_floor0_decode(vorbis_context *vc, static uint_fast8_t vorbis_floor1_decode(vorbis_context *vc, vorbis_floor_data *vfu, float *vec) { - vorbis_floor1 * vf=&vfu->t1; - GetBitContext *gb=&vc->gb; - uint_fast16_t range_v[4]={ 256, 128, 86, 64 }; - uint_fast16_t range=range_v[vf->multiplier-1]; + vorbis_floor1 *vf = &vfu->t1; + GetBitContext *gb = &vc->gb; + uint_fast16_t range_v[4] = { 256, 128, 86, 64 }; + uint_fast16_t range = range_v[vf->multiplier-1]; uint_fast16_t floor1_Y[vf->x_list_dim]; uint_fast16_t floor1_Y_final[vf->x_list_dim]; int floor1_flag[vf->x_list_dim]; @@ -1157,7 +1152,7 @@ static uint_fast8_t vorbis_floor1_decode(vorbis_context *vc, int_fast16_t book; uint_fast16_t offset; uint_fast16_t i,j; - /*u*/int_fast16_t adx, ady, off, predicted; // WTF ? dy/adx= (unsigned)dy/adx ? + /*u*/int_fast16_t adx, ady, off, predicted; // WTF ? dy/adx = (unsigned)dy/adx ? int_fast16_t dy, err; @@ -1166,36 +1161,36 @@ static uint_fast8_t vorbis_floor1_decode(vorbis_context *vc, // Read values (or differences) for the floor's points - floor1_Y[0]=get_bits(gb, ilog(range-1)); - floor1_Y[1]=get_bits(gb, ilog(range-1)); + floor1_Y[0] = get_bits(gb, ilog(range - 1)); + floor1_Y[1] = get_bits(gb, ilog(range - 1)); AV_DEBUG("floor 0 Y %d floor 1 Y %d \n", floor1_Y[0], floor1_Y[1]); - offset=2; - for(i=0;i<vf->partitions;++i) { - class_=vf->partition_class[i]; - cdim=vf->class_dimensions[class_]; - cbits=vf->class_subclasses[class_]; - csub=(1<<cbits)-1; - cval=0; + offset = 2; + for (i = 0; i < vf->partitions; ++i) { + class_ = vf->partition_class[i]; + cdim = vf->class_dimensions[class_]; + cbits = vf->class_subclasses[class_]; + csub = (1 << cbits) - 1; + cval = 0; AV_DEBUG("Cbits %d \n", cbits); if (cbits) // this reads all subclasses for this partition's class - cval=get_vlc2(gb, vc->codebooks[vf->class_masterbook[class_]].vlc.table, - vc->codebooks[vf->class_masterbook[class_]].nb_bits, 3); + cval = get_vlc2(gb, vc->codebooks[vf->class_masterbook[class_]].vlc.table, + vc->codebooks[vf->class_masterbook[class_]].nb_bits, 3); - for(j=0;j<cdim;++j) { - book=vf->subclass_books[class_][cval & csub]; + for (j = 0; j < cdim; ++j) { + book = vf->subclass_books[class_][cval & csub]; AV_DEBUG("book %d Cbits %d cval %d bits:%d \n", book, cbits, cval, get_bits_count(gb)); - cval=cval>>cbits; - if (book>-1) { - floor1_Y[offset+j]=get_vlc2(gb, vc->codebooks[book].vlc.table, + cval = cval >> cbits; + if (book > -1) { + floor1_Y[offset+j] = get_vlc2(gb, vc->codebooks[book].vlc.table, vc->codebooks[book].nb_bits, 3); } else { - floor1_Y[offset+j]=0; + floor1_Y[offset+j] = 0; } AV_DEBUG(" floor(%d) = %d \n", vf->list[offset+j].x, floor1_Y[offset+j]); @@ -1205,57 +1200,57 @@ static uint_fast8_t vorbis_floor1_decode(vorbis_context *vc, // Amplitude calculation from the differences - floor1_flag[0]=1; - floor1_flag[1]=1; - floor1_Y_final[0]=floor1_Y[0]; - floor1_Y_final[1]=floor1_Y[1]; + floor1_flag[0] = 1; + floor1_flag[1] = 1; + floor1_Y_final[0] = floor1_Y[0]; + floor1_Y_final[1] = floor1_Y[1]; - for(i=2;i<vf->x_list_dim;++i) { + for (i = 2; i < vf->x_list_dim; ++i) { uint_fast16_t val, highroom, lowroom, room; uint_fast16_t high_neigh_offs; uint_fast16_t low_neigh_offs; - low_neigh_offs=vf->list[i].low; - high_neigh_offs=vf->list[i].high; - dy=floor1_Y_final[high_neigh_offs]-floor1_Y_final[low_neigh_offs]; // render_point begin - adx=vf->list[high_neigh_offs].x-vf->list[low_neigh_offs].x; - ady= FFABS(dy); - err=ady*(vf->list[i].x-vf->list[low_neigh_offs].x); - off=(int16_t)err/(int16_t)adx; - if (dy<0) { - predicted=floor1_Y_final[low_neigh_offs]-off; + low_neigh_offs = vf->list[i].low; + high_neigh_offs = vf->list[i].high; + dy = floor1_Y_final[high_neigh_offs] - floor1_Y_final[low_neigh_offs]; // render_point begin + adx = vf->list[high_neigh_offs].x - vf->list[low_neigh_offs].x; + ady = FFABS(dy); + err = ady * (vf->list[i].x - vf->list[low_neigh_offs].x); + off = (int16_t)err / (int16_t)adx; + if (dy < 0) { + predicted = floor1_Y_final[low_neigh_offs] - off; } else { - predicted=floor1_Y_final[low_neigh_offs]+off; + predicted = floor1_Y_final[low_neigh_offs] + off; } // render_point end - val=floor1_Y[i]; - highroom=range-predicted; - lowroom=predicted; + val = floor1_Y[i]; + highroom = range-predicted; + lowroom = predicted; if (highroom < lowroom) { - room=highroom*2; + room = highroom * 2; } else { - room=lowroom*2; // SPEC mispelling + room = lowroom * 2; // SPEC mispelling } if (val) { - floor1_flag[low_neigh_offs]=1; - floor1_flag[high_neigh_offs]=1; - floor1_flag[i]=1; - if (val>=room) { + floor1_flag[low_neigh_offs] = 1; + floor1_flag[high_neigh_offs] = 1; + floor1_flag[i] = 1; + if (val >= room) { if (highroom > lowroom) { - floor1_Y_final[i]=val-lowroom+predicted; + floor1_Y_final[i] = val - lowroom + predicted; } else { - floor1_Y_final[i]=predicted-val+highroom-1; + floor1_Y_final[i] = predicted - val + highroom - 1; } } else { if (val & 1) { - floor1_Y_final[i]=predicted-(val+1)/2; + floor1_Y_final[i] = predicted - (val + 1) / 2; } else { - floor1_Y_final[i]=predicted+val/2; + floor1_Y_final[i] = predicted + val / 2; } } } else { - floor1_flag[i]=0; - floor1_Y_final[i]=predicted; + floor1_flag[i] = 0; + floor1_Y_final[i] = predicted; } AV_DEBUG(" Decoded floor(%d) = %d / val %d \n", vf->list[i].x, floor1_Y_final[i], val); @@ -1277,139 +1272,139 @@ static av_always_inline int vorbis_residue_decode_internal(vorbis_context *vc, uint_fast8_t ch, uint_fast8_t *do_not_decode, float *vec, - uint_fast16_t - vlen, int vr_type) + uint_fast16_t vlen, + int vr_type) { - GetBitContext *gb=&vc->gb; - uint_fast8_t c_p_c=vc->codebooks[vr->classbook].dimensions; - uint_fast16_t n_to_read=vr->end-vr->begin; - uint_fast16_t ptns_to_read=n_to_read/vr->partition_size; + GetBitContext *gb = &vc->gb; + uint_fast8_t c_p_c = vc->codebooks[vr->classbook].dimensions; + uint_fast16_t n_to_read = vr->end-vr->begin; + uint_fast16_t ptns_to_read = n_to_read/vr->partition_size; uint_fast8_t classifs[ptns_to_read*vc->audio_channels]; uint_fast8_t pass; uint_fast8_t ch_used; uint_fast8_t i,j,l; uint_fast16_t k; - if (vr_type==2) { - for(j=1;j<ch;++j) - do_not_decode[0]&=do_not_decode[j]; // FIXME - clobbering input + if (vr_type == 2) { + for (j = 1; j < ch; ++j) + do_not_decode[0] &= do_not_decode[j]; // FIXME - clobbering input if (do_not_decode[0]) return 0; - ch_used=1; + ch_used = 1; } else { - ch_used=ch; + ch_used = ch; } AV_DEBUG(" residue type 0/1/2 decode begin, ch: %d cpc %d \n", ch, c_p_c); - for(pass=0;pass<=vr->maxpass;++pass) { // FIXME OPTIMIZE? + for (pass = 0; pass <= vr->maxpass; ++pass) { // FIXME OPTIMIZE? uint_fast16_t voffset; uint_fast16_t partition_count; uint_fast16_t j_times_ptns_to_read; - voffset=vr->begin; - for(partition_count=0;partition_count<ptns_to_read;) { // SPEC error + voffset = vr->begin; + for (partition_count = 0; partition_count < ptns_to_read;) { // SPEC error if (!pass) { uint_fast32_t inverse_class = ff_inverse[vr->classifications]; - for(j_times_ptns_to_read=0, j=0;j<ch_used;++j) { + for (j_times_ptns_to_read = 0, j = 0; j < ch_used; ++j) { if (!do_not_decode[j]) { - uint_fast32_t temp=get_vlc2(gb, vc->codebooks[vr->classbook].vlc.table, + uint_fast32_t temp = get_vlc2(gb, vc->codebooks[vr->classbook].vlc.table, vc->codebooks[vr->classbook].nb_bits, 3); AV_DEBUG("Classword: %d \n", temp); - assert(vr->classifications > 1 && temp<=65536); //needed for inverse[] - for(i=0;i<c_p_c;++i) { + assert(vr->classifications > 1 && temp <= 65536); //needed for inverse[] + for (i = 0; i < c_p_c; ++i) { uint_fast32_t temp2; - temp2=(((uint_fast64_t)temp) * inverse_class)>>32; - if (partition_count+c_p_c-1-i < ptns_to_read) - classifs[j_times_ptns_to_read+partition_count+c_p_c-1-i]=temp-temp2*vr->classifications; - temp=temp2; + temp2 = (((uint_fast64_t)temp) * inverse_class) >> 32; + if (partition_count + c_p_c - 1 - i < ptns_to_read) + classifs[j_times_ptns_to_read + partition_count + c_p_c - 1 - i] = temp - temp2 * vr->classifications; + temp = temp2; } } - j_times_ptns_to_read+=ptns_to_read; + j_times_ptns_to_read += ptns_to_read; } } - for(i=0;(i<c_p_c) && (partition_count<ptns_to_read);++i) { - for(j_times_ptns_to_read=0, j=0;j<ch_used;++j) { + for (i = 0; (i < c_p_c) && (partition_count < ptns_to_read); ++i) { + for (j_times_ptns_to_read = 0, j = 0; j < ch_used; ++j) { uint_fast16_t voffs; if (!do_not_decode[j]) { - uint_fast8_t vqclass=classifs[j_times_ptns_to_read+partition_count]; - int_fast16_t vqbook=vr->books[vqclass][pass]; + uint_fast8_t vqclass = classifs[j_times_ptns_to_read+partition_count]; + int_fast16_t vqbook = vr->books[vqclass][pass]; - if (vqbook>=0 && vc->codebooks[vqbook].codevectors) { + if (vqbook >= 0 && vc->codebooks[vqbook].codevectors) { uint_fast16_t coffs; - unsigned dim= vc->codebooks[vqbook].dimensions; // not uint_fast8_t: 64bit is slower here on amd64 - uint_fast16_t step= dim==1 ? vr->partition_size - : FASTDIV(vr->partition_size, dim); - vorbis_codebook codebook= vc->codebooks[vqbook]; - - if (vr_type==0) { - - voffs=voffset+j*vlen; - for(k=0;k<step;++k) { - coffs=get_vlc2(gb, codebook.vlc.table, codebook.nb_bits, 3) * dim; - for(l=0;l<dim;++l) - vec[voffs+k+l*step]+=codebook.codevectors[coffs+l]; // FPMATH + unsigned dim = vc->codebooks[vqbook].dimensions; // not uint_fast8_t: 64bit is slower here on amd64 + uint_fast16_t step = dim == 1 ? vr->partition_size + : FASTDIV(vr->partition_size, dim); + vorbis_codebook codebook = vc->codebooks[vqbook]; + + if (vr_type == 0) { + + voffs = voffset+j*vlen; + for (k = 0; k < step; ++k) { + coffs = get_vlc2(gb, codebook.vlc.table, codebook.nb_bits, 3) * dim; + for (l = 0; l < dim; ++l) + vec[voffs + k + l * step] += codebook.codevectors[coffs + l]; // FPMATH } - } else if (vr_type==1) { - voffs=voffset+j*vlen; - for(k=0;k<step;++k) { - coffs=get_vlc2(gb, codebook.vlc.table, codebook.nb_bits, 3) * dim; - for(l=0;l<dim;++l, ++voffs) { + } else if (vr_type == 1) { + voffs = voffset + j * vlen; + for (k = 0; k < step; ++k) { + coffs = get_vlc2(gb, codebook.vlc.table, codebook.nb_bits, 3) * dim; + for (l = 0; l < dim; ++l, ++voffs) { vec[voffs]+=codebook.codevectors[coffs+l]; // FPMATH AV_DEBUG(" pass %d offs: %d curr: %f change: %f cv offs.: %d \n", pass, voffs, vec[voffs], codebook.codevectors[coffs+l], coffs); } } - } else if (vr_type==2 && ch==2 && (voffset&1)==0 && (dim&1)==0) { // most frequent case optimized - voffs=voffset>>1; - - if(dim==2) { - for(k=0;k<step;++k) { - coffs=get_vlc2(gb, codebook.vlc.table, codebook.nb_bits, 3) * 2; - vec[voffs+k ]+=codebook.codevectors[coffs ]; // FPMATH - vec[voffs+k+vlen]+=codebook.codevectors[coffs+1]; // FPMATH + } else if (vr_type == 2 && ch == 2 && (voffset & 1) == 0 && (dim & 1) == 0) { // most frequent case optimized + voffs = voffset >> 1; + + if (dim == 2) { + for (k = 0; k < step; ++k) { + coffs = get_vlc2(gb, codebook.vlc.table, codebook.nb_bits, 3) * 2; + vec[voffs + k ] += codebook.codevectors[coffs ]; // FPMATH + vec[voffs + k + vlen] += codebook.codevectors[coffs + 1]; // FPMATH } - } else if(dim==4) { - for(k=0;k<step;++k, voffs+=2) { - coffs=get_vlc2(gb, codebook.vlc.table, codebook.nb_bits, 3) * 4; - vec[voffs ]+=codebook.codevectors[coffs ]; // FPMATH - vec[voffs+1 ]+=codebook.codevectors[coffs+2]; // FPMATH - vec[voffs+vlen ]+=codebook.codevectors[coffs+1]; // FPMATH - vec[voffs+vlen+1]+=codebook.codevectors[coffs+3]; // FPMATH + } else if (dim == 4) { + for (k = 0; k < step; ++k, voffs += 2) { + coffs = get_vlc2(gb, codebook.vlc.table, codebook.nb_bits, 3) * 4; + vec[voffs ] += codebook.codevectors[coffs ]; // FPMATH + vec[voffs + 1 ] += codebook.codevectors[coffs + 2]; // FPMATH + vec[voffs + vlen ] += codebook.codevectors[coffs + 1]; // FPMATH + vec[voffs + vlen + 1] += codebook.codevectors[coffs + 3]; // FPMATH } } else - for(k=0;k<step;++k) { - coffs=get_vlc2(gb, codebook.vlc.table, codebook.nb_bits, 3) * dim; - for(l=0;l<dim;l+=2, voffs++) { - vec[voffs ]+=codebook.codevectors[coffs+l ]; // FPMATH - vec[voffs+vlen]+=codebook.codevectors[coffs+l+1]; // FPMATH + for (k = 0; k < step; ++k) { + coffs = get_vlc2(gb, codebook.vlc.table, codebook.nb_bits, 3) * dim; + for (l = 0; l < dim; l += 2, voffs++) { + vec[voffs ] += codebook.codevectors[coffs + l ]; // FPMATH + vec[voffs + vlen] += codebook.codevectors[coffs + l + 1]; // FPMATH - AV_DEBUG(" pass %d offs: %d curr: %f change: %f cv offs.: %d+%d \n", pass, voffset/ch+(voffs%ch)*vlen, vec[voffset/ch+(voffs%ch)*vlen], codebook.codevectors[coffs+l], coffs, l); + AV_DEBUG(" pass %d offs: %d curr: %f change: %f cv offs.: %d+%d \n", pass, voffset / ch + (voffs % ch) * vlen, vec[voffset / ch + (voffs % ch) * vlen], codebook.codevectors[coffs + l], coffs, l); } } - } else if (vr_type==2) { - voffs=voffset; + } else if (vr_type == 2) { + voffs = voffset; - for(k=0;k<step;++k) { - coffs=get_vlc2(gb, codebook.vlc.table, codebook.nb_bits, 3) * dim; - for(l=0;l<dim;++l, ++voffs) { - vec[voffs/ch+(voffs%ch)*vlen]+=codebook.codevectors[coffs+l]; // FPMATH FIXME use if and counter instead of / and % + for (k = 0; k < step; ++k) { + coffs = get_vlc2(gb, codebook.vlc.table, codebook.nb_bits, 3) * dim; + for (l = 0; l < dim; ++l, ++voffs) { + vec[voffs / ch + (voffs % ch) * vlen] += codebook.codevectors[coffs + l]; // FPMATH FIXME use if and counter instead of / and % - AV_DEBUG(" pass %d offs: %d curr: %f change: %f cv offs.: %d+%d \n", pass, voffset/ch+(voffs%ch)*vlen, vec[voffset/ch+(voffs%ch)*vlen], codebook.codevectors[coffs+l], coffs, l); + AV_DEBUG(" pass %d offs: %d curr: %f change: %f cv offs.: %d+%d \n", pass, voffset / ch + (voffs % ch) * vlen, vec[voffset / ch + (voffs % ch) * vlen], codebook.codevectors[coffs + l], coffs, l); } } } } } - j_times_ptns_to_read+=ptns_to_read; + j_times_ptns_to_read += ptns_to_read; } ++partition_count; - voffset+=vr->partition_size; + voffset += vr->partition_size; } } } @@ -1421,11 +1416,11 @@ static inline int vorbis_residue_decode(vorbis_context *vc, vorbis_residue *vr, uint_fast8_t *do_not_decode, float *vec, uint_fast16_t vlen) { - if (vr->type==2) + if (vr->type == 2) return vorbis_residue_decode_internal(vc, vr, ch, do_not_decode, vec, vlen, 2); - else if (vr->type==1) + else if (vr->type == 1) return vorbis_residue_decode_internal(vc, vr, ch, do_not_decode, vec, vlen, 1); - else if (vr->type==0) + else if (vr->type == 0) return vorbis_residue_decode_internal(vc, vr, ch, do_not_decode, vec, vlen, 0); else { av_log(vc->avccontext, AV_LOG_ERROR, " Invalid residue type while residue decode?! \n"); @@ -1436,22 +1431,22 @@ static inline int vorbis_residue_decode(vorbis_context *vc, vorbis_residue *vr, void vorbis_inverse_coupling(float *mag, float *ang, int blocksize) { int i; - for(i=0; i<blocksize; i++) { - if (mag[i]>0.0) { - if (ang[i]>0.0) { - ang[i]=mag[i]-ang[i]; + for (i = 0; i < blocksize; i++) { + if (mag[i] > 0.0) { + if (ang[i] > 0.0) { + ang[i] = mag[i] - ang[i]; } else { - float temp=ang[i]; - ang[i]=mag[i]; - mag[i]+=temp; + float temp = ang[i]; + ang[i] = mag[i]; + mag[i] += temp; } } else { - if (ang[i]>0.0) { - ang[i]+=mag[i]; + if (ang[i] > 0.0) { + ang[i] += mag[i]; } else { - float temp=ang[i]; - ang[i]=mag[i]; - mag[i]-=temp; + float temp = ang[i]; + ang[i] = mag[i]; + mag[i] -= temp; } } } @@ -1461,10 +1456,10 @@ static void copy_normalize(float *dst, float *src, int len, int exp_bias, float add_bias) { int i; - if(exp_bias) { + if (exp_bias) { memcpy(dst, src, len * sizeof(float)); } else { - for(i=0; i<len; i++) + for (i = 0; i < len; i++) dst[i] = src[i] + add_bias; } } @@ -1473,9 +1468,9 @@ static void copy_normalize(float *dst, float *src, int len, int exp_bias, static int vorbis_parse_audio_packet(vorbis_context *vc) { - GetBitContext *gb=&vc->gb; + GetBitContext *gb = &vc->gb; - uint_fast8_t previous_window=vc->previous_window; + uint_fast8_t previous_window = vc->previous_window; uint_fast8_t mode_number; uint_fast8_t blockflag; uint_fast16_t blocksize; @@ -1483,11 +1478,11 @@ static int vorbis_parse_audio_packet(vorbis_context *vc) uint_fast8_t no_residue[vc->audio_channels]; uint_fast8_t do_not_decode[vc->audio_channels]; vorbis_mapping *mapping; - float *ch_res_ptr=vc->channel_residues; - float *ch_floor_ptr=vc->channel_floors; + float *ch_res_ptr = vc->channel_residues; + float *ch_floor_ptr = vc->channel_floors; uint_fast8_t res_chan[vc->audio_channels]; - uint_fast8_t res_num=0; - int_fast16_t retlen=0; + uint_fast8_t res_num = 0; + int_fast16_t retlen = 0; float fadd_bias = vc->add_bias; if (get_bits1(gb)) { @@ -1495,116 +1490,116 @@ static int vorbis_parse_audio_packet(vorbis_context *vc) return -1; // packet type not audio } - if (vc->mode_count==1) { - mode_number=0; + if (vc->mode_count == 1) { + mode_number = 0; } else { - mode_number=get_bits(gb, ilog(vc->mode_count-1)); + mode_number = get_bits(gb, ilog(vc->mode_count-1)); } - if (mode_number>=vc->mode_count) { + if (mode_number >= vc->mode_count) { av_log(vc->avccontext, AV_LOG_ERROR, "mode number %d out of range.\n", mode_number); return -1; } - vc->mode_number=mode_number; - mapping=&vc->mappings[vc->modes[mode_number].mapping]; + vc->mode_number = mode_number; + mapping = &vc->mappings[vc->modes[mode_number].mapping]; AV_DEBUG(" Mode number: %d , mapping: %d , blocktype %d \n", mode_number, vc->modes[mode_number].mapping, vc->modes[mode_number].blockflag); - blockflag=vc->modes[mode_number].blockflag; - blocksize=vc->blocksize[blockflag]; + blockflag = vc->modes[mode_number].blockflag; + blocksize = vc->blocksize[blockflag]; if (blockflag) skip_bits(gb, 2); // previous_window, next_window - memset(ch_res_ptr, 0, sizeof(float)*vc->audio_channels*blocksize/2); //FIXME can this be removed ? - memset(ch_floor_ptr, 0, sizeof(float)*vc->audio_channels*blocksize/2); //FIXME can this be removed ? + memset(ch_res_ptr, 0, sizeof(float) * vc->audio_channels * blocksize / 2); //FIXME can this be removed ? + memset(ch_floor_ptr, 0, sizeof(float) * vc->audio_channels * blocksize / 2); //FIXME can this be removed ? // Decode floor - for(i=0;i<vc->audio_channels;++i) { + for (i = 0; i < vc->audio_channels; ++i) { vorbis_floor *floor; - if (mapping->submaps>1) { - floor=&vc->floors[mapping->submap_floor[mapping->mux[i]]]; + if (mapping->submaps > 1) { + floor = &vc->floors[mapping->submap_floor[mapping->mux[i]]]; } else { - floor=&vc->floors[mapping->submap_floor[0]]; + floor = &vc->floors[mapping->submap_floor[0]]; } - no_residue[i]=floor->decode(vc, &floor->data, ch_floor_ptr); - ch_floor_ptr+=blocksize/2; + no_residue[i] = floor->decode(vc, &floor->data, ch_floor_ptr); + ch_floor_ptr += blocksize / 2; } // Nonzero vector propagate - for(i=mapping->coupling_steps-1;i>=0;--i) { + for (i = mapping->coupling_steps - 1; i >= 0; --i) { if (!(no_residue[mapping->magnitude[i]] & no_residue[mapping->angle[i]])) { - no_residue[mapping->magnitude[i]]=0; - no_residue[mapping->angle[i]]=0; + no_residue[mapping->magnitude[i]] = 0; + no_residue[mapping->angle[i]] = 0; } } // Decode residue - for(i=0;i<mapping->submaps;++i) { + for (i = 0; i < mapping->submaps; ++i) { vorbis_residue *residue; - uint_fast8_t ch=0; + uint_fast8_t ch = 0; - for(j=0;j<vc->audio_channels;++j) { - if ((mapping->submaps==1) || (i==mapping->mux[j])) { - res_chan[j]=res_num; + for (j = 0; j < vc->audio_channels; ++j) { + if ((mapping->submaps == 1) || (i == mapping->mux[j])) { + res_chan[j] = res_num; if (no_residue[j]) { - do_not_decode[ch]=1; + do_not_decode[ch] = 1; } else { - do_not_decode[ch]=0; + do_not_decode[ch] = 0; } ++ch; ++res_num; } } - residue=&vc->residues[mapping->submap_residue[i]]; + residue = &vc->residues[mapping->submap_residue[i]]; vorbis_residue_decode(vc, residue, ch, do_not_decode, ch_res_ptr, blocksize/2); - ch_res_ptr+=ch*blocksize/2; + ch_res_ptr += ch * blocksize / 2; } // Inverse coupling - for(i=mapping->coupling_steps-1;i>=0;--i) { //warning: i has to be signed + for (i = mapping->coupling_steps - 1; i >= 0; --i) { //warning: i has to be signed float *mag, *ang; - mag=vc->channel_residues+res_chan[mapping->magnitude[i]]*blocksize/2; - ang=vc->channel_residues+res_chan[mapping->angle[i]]*blocksize/2; - vc->dsp.vorbis_inverse_coupling(mag, ang, blocksize/2); + mag = vc->channel_residues+res_chan[mapping->magnitude[i]] * blocksize / 2; + ang = vc->channel_residues+res_chan[mapping->angle[i]] * blocksize / 2; + vc->dsp.vorbis_inverse_coupling(mag, ang, blocksize / 2); } // Dotproduct, MDCT - for(j=vc->audio_channels-1;j>=0;j--) { - ch_floor_ptr=vc->channel_floors+j*blocksize/2; - ch_res_ptr=vc->channel_residues+res_chan[j]*blocksize/2; - vc->dsp.vector_fmul(ch_floor_ptr, ch_res_ptr, blocksize/2); + for (j = vc->audio_channels-1;j >= 0; j--) { + ch_floor_ptr = vc->channel_floors + j * blocksize / 2; + ch_res_ptr = vc->channel_residues + res_chan[j] * blocksize / 2; + vc->dsp.vector_fmul(ch_floor_ptr, ch_res_ptr, blocksize / 2); ff_imdct_half(&vc->mdct[blockflag], ch_res_ptr, ch_floor_ptr); } // Overlap/add, save data for next overlapping FPMATH - retlen = (blocksize + vc->blocksize[previous_window])/4; - for(j=0;j<vc->audio_channels;j++) { - uint_fast16_t bs0=vc->blocksize[0]; - uint_fast16_t bs1=vc->blocksize[1]; - float *residue=vc->channel_residues+res_chan[j]*blocksize/2; - float *saved=vc->saved+j*bs1/4; - float *ret=vc->channel_floors+j*retlen; - float *buf=residue; - const float *win=vc->win[blockflag&previous_window]; - - if(blockflag == previous_window) { - vc->dsp.vector_fmul_window(ret, saved, buf, win, fadd_bias, blocksize/4); - } else if(blockflag > previous_window) { - vc->dsp.vector_fmul_window(ret, saved, buf, win, fadd_bias, bs0/4); + retlen = (blocksize + vc->blocksize[previous_window]) / 4; + for (j = 0; j < vc->audio_channels; j++) { + uint_fast16_t bs0 = vc->blocksize[0]; + uint_fast16_t bs1 = vc->blocksize[1]; + float *residue = vc->channel_residues + res_chan[j] * blocksize / 2; + float *saved = vc->saved + j * bs1 / 4; + float *ret = vc->channel_floors + j * retlen; + float *buf = residue; + const float *win = vc->win[blockflag & previous_window]; + + if (blockflag == previous_window) { + vc->dsp.vector_fmul_window(ret, saved, buf, win, fadd_bias, blocksize / 4); + } else if (blockflag > previous_window) { + vc->dsp.vector_fmul_window(ret, saved, buf, win, fadd_bias, bs0 / 4); copy_normalize(ret+bs0/2, buf+bs0/4, (bs1-bs0)/4, vc->exp_bias, fadd_bias); } else { - copy_normalize(ret, saved, (bs1-bs0)/4, vc->exp_bias, fadd_bias); - vc->dsp.vector_fmul_window(ret+(bs1-bs0)/4, saved+(bs1-bs0)/4, buf, win, fadd_bias, bs0/4); + copy_normalize(ret, saved, (bs1 - bs0) / 4, vc->exp_bias, fadd_bias); + vc->dsp.vector_fmul_window(ret + (bs1 - bs0) / 4, saved + (bs1 - bs0) / 4, buf, win, fadd_bias, bs0 / 4); } - memcpy(saved, buf+blocksize/4, blocksize/4*sizeof(float)); + memcpy(saved, buf + blocksize / 4, blocksize / 4 * sizeof(float)); } vc->previous_window = blockflag; @@ -1614,11 +1609,11 @@ static int vorbis_parse_audio_packet(vorbis_context *vc) // Return the decoded audio packet through the standard api static int vorbis_decode_frame(AVCodecContext *avccontext, - void *data, int *data_size, - AVPacket *avpkt) + void *data, int *data_size, + AVPacket *avpkt) { const uint8_t *buf = avpkt->data; - int buf_size = avpkt->size; + int buf_size = avpkt->size; vorbis_context *vc = avccontext->priv_data ; GetBitContext *gb = &(vc->gb); const float *channel_ptrs[vc->audio_channels]; @@ -1626,32 +1621,32 @@ static int vorbis_decode_frame(AVCodecContext *avccontext, int_fast16_t len; - if(!buf_size) + if (!buf_size) return 0; AV_DEBUG("packet length %d \n", buf_size); init_get_bits(gb, buf, buf_size*8); - len=vorbis_parse_audio_packet(vc); + len = vorbis_parse_audio_packet(vc); - if (len<=0) { - *data_size=0; + if (len <= 0) { + *data_size = 0; return buf_size; } if (!vc->first_frame) { - vc->first_frame=1; - *data_size=0; + vc->first_frame = 1; + *data_size = 0; return buf_size ; } AV_DEBUG("parsed %d bytes %d bits, returned %d samples (*ch*bits) \n", get_bits_count(gb)/8, get_bits_count(gb)%8, len); - for(i=0; i<vc->audio_channels; i++) - channel_ptrs[i] = vc->channel_floors+i*len; + for (i = 0; i < vc->audio_channels; i++) + channel_ptrs[i] = vc->channel_floors + i * len; vc->dsp.float_to_int16_interleave(data, channel_ptrs, len, vc->audio_channels); - *data_size=len*2*vc->audio_channels; + *data_size = len * 2 * vc->audio_channels; return buf_size ; } |