diff options
author | Shitiz Garg <mail@dragooon.net> | 2012-01-03 16:19:28 +0530 |
---|---|---|
committer | Diego Biurrun <diego@biurrun.de> | 2012-01-03 15:25:54 +0100 |
commit | f37b4efe03b88d9b1a0865a10a4e6708556ddb07 (patch) | |
tree | ac11928084411758ecb06ac7c762d013cca3696c /libavcodec/dca.c | |
parent | 2e70b2de58c4505223f643723820d21fe398f2e9 (diff) | |
download | ffmpeg-f37b4efe03b88d9b1a0865a10a4e6708556ddb07.tar.gz |
dca: K&R formatting cosmetics
Signed-off-by: Diego Biurrun <diego@biurrun.de>
Diffstat (limited to 'libavcodec/dca.c')
-rw-r--r-- | libavcodec/dca.c | 546 |
1 files changed, 289 insertions, 257 deletions
diff --git a/libavcodec/dca.c b/libavcodec/dca.c index e3f87b92eb..3735b5a7fd 100644 --- a/libavcodec/dca.c +++ b/libavcodec/dca.c @@ -48,13 +48,13 @@ //#define TRACE -#define DCA_PRIM_CHANNELS_MAX (7) -#define DCA_SUBBANDS (32) -#define DCA_ABITS_MAX (32) /* Should be 28 */ -#define DCA_SUBSUBFRAMES_MAX (4) -#define DCA_SUBFRAMES_MAX (16) -#define DCA_BLOCKS_MAX (16) -#define DCA_LFE_MAX (3) +#define DCA_PRIM_CHANNELS_MAX (7) +#define DCA_SUBBANDS (32) +#define DCA_ABITS_MAX (32) /* Should be 28 */ +#define DCA_SUBSUBFRAMES_MAX (4) +#define DCA_SUBFRAMES_MAX (16) +#define DCA_BLOCKS_MAX (16) +#define DCA_LFE_MAX (3) enum DCAMode { DCA_MONO = 0, @@ -127,28 +127,45 @@ static const int dca_ext_audio_descr_mask[] = { * OV -> center back * All 2 channel configurations -> AV_CH_LAYOUT_STEREO */ - static const uint64_t dca_core_channel_layout[] = { - AV_CH_FRONT_CENTER, ///< 1, A - AV_CH_LAYOUT_STEREO, ///< 2, A + B (dual mono) - AV_CH_LAYOUT_STEREO, ///< 2, L + R (stereo) - AV_CH_LAYOUT_STEREO, ///< 2, (L+R) + (L-R) (sum-difference) - AV_CH_LAYOUT_STEREO, ///< 2, LT +RT (left and right total) - AV_CH_LAYOUT_STEREO|AV_CH_FRONT_CENTER, ///< 3, C+L+R - AV_CH_LAYOUT_STEREO|AV_CH_BACK_CENTER, ///< 3, L+R+S - AV_CH_LAYOUT_STEREO|AV_CH_FRONT_CENTER|AV_CH_BACK_CENTER, ///< 4, C + L + R+ S - AV_CH_LAYOUT_STEREO|AV_CH_SIDE_LEFT|AV_CH_SIDE_RIGHT, ///< 4, L + R +SL+ SR - AV_CH_LAYOUT_STEREO|AV_CH_FRONT_CENTER|AV_CH_SIDE_LEFT|AV_CH_SIDE_RIGHT, ///< 5, C + L + R+ SL+SR - AV_CH_LAYOUT_STEREO|AV_CH_SIDE_LEFT|AV_CH_SIDE_RIGHT|AV_CH_FRONT_LEFT_OF_CENTER|AV_CH_FRONT_RIGHT_OF_CENTER, ///< 6, CL + CR + L + R + SL + SR - AV_CH_LAYOUT_STEREO|AV_CH_BACK_LEFT|AV_CH_BACK_RIGHT|AV_CH_FRONT_CENTER|AV_CH_BACK_CENTER, ///< 6, C + L + R+ LR + RR + OV - AV_CH_FRONT_CENTER|AV_CH_FRONT_RIGHT_OF_CENTER|AV_CH_FRONT_LEFT_OF_CENTER|AV_CH_BACK_CENTER|AV_CH_BACK_LEFT|AV_CH_BACK_RIGHT, ///< 6, CF+ CR+LF+ RF+LR + RR - AV_CH_FRONT_LEFT_OF_CENTER|AV_CH_FRONT_CENTER|AV_CH_FRONT_RIGHT_OF_CENTER|AV_CH_LAYOUT_STEREO|AV_CH_SIDE_LEFT|AV_CH_SIDE_RIGHT, ///< 7, CL + C + CR + L + R + SL + SR - AV_CH_FRONT_LEFT_OF_CENTER|AV_CH_FRONT_RIGHT_OF_CENTER|AV_CH_LAYOUT_STEREO|AV_CH_SIDE_LEFT|AV_CH_SIDE_RIGHT|AV_CH_BACK_LEFT|AV_CH_BACK_RIGHT, ///< 8, CL + CR + L + R + SL1 + SL2+ SR1 + SR2 - AV_CH_FRONT_LEFT_OF_CENTER|AV_CH_FRONT_CENTER|AV_CH_FRONT_RIGHT_OF_CENTER|AV_CH_LAYOUT_STEREO|AV_CH_SIDE_LEFT|AV_CH_BACK_CENTER|AV_CH_SIDE_RIGHT, ///< 8, CL + C+ CR + L + R + SL + S+ SR + AV_CH_FRONT_CENTER, ///< 1, A + AV_CH_LAYOUT_STEREO, ///< 2, A + B (dual mono) + AV_CH_LAYOUT_STEREO, ///< 2, L + R (stereo) + AV_CH_LAYOUT_STEREO, ///< 2, (L + R) + (L - R) (sum-difference) + AV_CH_LAYOUT_STEREO, ///< 2, LT + RT (left and right total) + AV_CH_LAYOUT_STEREO | AV_CH_FRONT_CENTER, ///< 3, C + L + R + AV_CH_LAYOUT_STEREO | AV_CH_BACK_CENTER, ///< 3, L + R + S + AV_CH_LAYOUT_STEREO | AV_CH_FRONT_CENTER | AV_CH_BACK_CENTER, ///< 4, C + L + R + S + AV_CH_LAYOUT_STEREO | AV_CH_SIDE_LEFT | AV_CH_SIDE_RIGHT, ///< 4, L + R + SL + SR + + AV_CH_LAYOUT_STEREO | AV_CH_FRONT_CENTER | AV_CH_SIDE_LEFT | + AV_CH_SIDE_RIGHT, ///< 5, C + L + R + SL + SR + + AV_CH_LAYOUT_STEREO | AV_CH_SIDE_LEFT | AV_CH_SIDE_RIGHT | + AV_CH_FRONT_LEFT_OF_CENTER | AV_CH_FRONT_RIGHT_OF_CENTER, ///< 6, CL + CR + L + R + SL + SR + + AV_CH_LAYOUT_STEREO | AV_CH_BACK_LEFT | AV_CH_BACK_RIGHT | + AV_CH_FRONT_CENTER | AV_CH_BACK_CENTER, ///< 6, C + L + R + LR + RR + OV + + AV_CH_FRONT_CENTER | AV_CH_FRONT_RIGHT_OF_CENTER | + AV_CH_FRONT_LEFT_OF_CENTER | AV_CH_BACK_CENTER | + AV_CH_BACK_LEFT | AV_CH_BACK_RIGHT, ///< 6, CF + CR + LF + RF + LR + RR + + AV_CH_FRONT_LEFT_OF_CENTER | AV_CH_FRONT_CENTER | + AV_CH_FRONT_RIGHT_OF_CENTER | AV_CH_LAYOUT_STEREO | + AV_CH_SIDE_LEFT | AV_CH_SIDE_RIGHT, ///< 7, CL + C + CR + L + R + SL + SR + + AV_CH_FRONT_LEFT_OF_CENTER | AV_CH_FRONT_RIGHT_OF_CENTER | + AV_CH_LAYOUT_STEREO | AV_CH_SIDE_LEFT | AV_CH_SIDE_RIGHT | + AV_CH_BACK_LEFT | AV_CH_BACK_RIGHT, ///< 8, CL + CR + L + R + SL1 + SL2 + SR1 + SR2 + + AV_CH_FRONT_LEFT_OF_CENTER | AV_CH_FRONT_CENTER | + AV_CH_FRONT_RIGHT_OF_CENTER | AV_CH_LAYOUT_STEREO | + AV_CH_SIDE_LEFT | AV_CH_BACK_CENTER | AV_CH_SIDE_RIGHT, ///< 8, CL + C + CR + L + R + SL + S + SR }; static const int8_t dca_lfe_index[] = { - 1,2,2,2,2,3,2,3,2,3,2,3,1,3,2,3 + 1, 2, 2, 2, 2, 3, 2, 3, 2, 3, 2, 3, 1, 3, 2, 3 }; static const int8_t dca_channel_reorder_lfe[][9] = { @@ -227,19 +244,19 @@ static const int8_t dca_channel_reorder_nolfe_xch[][9] = { { 3, 2, 4, 0, 1, 5, 8, 7, 6}, }; -#define DCA_DOLBY 101 /* FIXME */ +#define DCA_DOLBY 101 /* FIXME */ -#define DCA_CHANNEL_BITS 6 -#define DCA_CHANNEL_MASK 0x3F +#define DCA_CHANNEL_BITS 6 +#define DCA_CHANNEL_MASK 0x3F -#define DCA_LFE 0x80 +#define DCA_LFE 0x80 -#define HEADER_SIZE 14 +#define HEADER_SIZE 14 -#define DCA_MAX_FRAME_SIZE 16384 -#define DCA_MAX_EXSS_HEADER_SIZE 4096 +#define DCA_MAX_FRAME_SIZE 16384 +#define DCA_MAX_EXSS_HEADER_SIZE 4096 -#define DCA_BUFFER_PADDING_SIZE 1024 +#define DCA_BUFFER_PADDING_SIZE 1024 /** Bit allocation */ typedef struct { @@ -254,9 +271,11 @@ static BitAlloc dca_tmode; ///< transition mode VLCs static BitAlloc dca_scalefactor; ///< scalefactor VLCs static BitAlloc dca_smpl_bitalloc[11]; ///< samples VLCs -static av_always_inline int get_bitalloc(GetBitContext *gb, BitAlloc *ba, int idx) +static av_always_inline int get_bitalloc(GetBitContext *gb, BitAlloc *ba, + int idx) { - return get_vlc2(gb, ba->vlc[idx].table, ba->vlc[idx].bits, ba->wrap) + ba->offset; + return get_vlc2(gb, ba->vlc[idx].table, ba->vlc[idx].bits, ba->wrap) + + ba->offset; } typedef struct { @@ -307,8 +326,8 @@ typedef struct { float scalefactor_adj[DCA_PRIM_CHANNELS_MAX][DCA_ABITS_MAX]; ///< scale factor adjustment /* Primary audio coding side information */ - int subsubframes[DCA_SUBFRAMES_MAX]; ///< number of subsubframes - int partial_samples[DCA_SUBFRAMES_MAX]; ///< partial subsubframe samples count + int subsubframes[DCA_SUBFRAMES_MAX]; ///< number of subsubframes + int partial_samples[DCA_SUBFRAMES_MAX]; ///< partial subsubframe samples count int prediction_mode[DCA_PRIM_CHANNELS_MAX][DCA_SUBBANDS]; ///< prediction mode (ADPCM used or not) int prediction_vq[DCA_PRIM_CHANNELS_MAX][DCA_SUBBANDS]; ///< prediction VQ coefs int bitalloc[DCA_PRIM_CHANNELS_MAX][DCA_SUBBANDS]; ///< bit allocation index @@ -335,13 +354,13 @@ typedef struct { float scale_bias; ///< output scale DECLARE_ALIGNED(32, float, subband_samples)[DCA_BLOCKS_MAX][DCA_PRIM_CHANNELS_MAX][DCA_SUBBANDS][8]; - DECLARE_ALIGNED(32, float, samples)[(DCA_PRIM_CHANNELS_MAX+1)*256]; - const float *samples_chanptr[DCA_PRIM_CHANNELS_MAX+1]; + DECLARE_ALIGNED(32, float, samples)[(DCA_PRIM_CHANNELS_MAX + 1) * 256]; + const float *samples_chanptr[DCA_PRIM_CHANNELS_MAX + 1]; uint8_t dca_buffer[DCA_MAX_FRAME_SIZE + DCA_MAX_EXSS_HEADER_SIZE + DCA_BUFFER_PADDING_SIZE]; int dca_buffer_size; ///< how much data is in the dca_buffer - const int8_t* channel_order_tab; ///< channel reordering table, lfe and non lfe + const int8_t *channel_order_tab; ///< channel reordering table, lfe and non lfe GetBitContext gb; /* Current position in DCA frame */ int current_subframe; @@ -416,13 +435,15 @@ static av_cold void dca_init_vlcs(void) } for (i = 0; i < 10; i++) - for (j = 0; j < 7; j++){ - if (!bitalloc_codes[i][j]) break; - dca_smpl_bitalloc[i+1].offset = bitalloc_offsets[i]; - dca_smpl_bitalloc[i+1].wrap = 1 + (j > 4); - dca_smpl_bitalloc[i+1].vlc[j].table = &dca_table[dca_vlc_offs[c]]; - dca_smpl_bitalloc[i+1].vlc[j].table_allocated = dca_vlc_offs[c + 1] - dca_vlc_offs[c]; - init_vlc(&dca_smpl_bitalloc[i+1].vlc[j], bitalloc_maxbits[i][j], + for (j = 0; j < 7; j++) { + if (!bitalloc_codes[i][j]) + break; + dca_smpl_bitalloc[i + 1].offset = bitalloc_offsets[i]; + dca_smpl_bitalloc[i + 1].wrap = 1 + (j > 4); + dca_smpl_bitalloc[i + 1].vlc[j].table = &dca_table[dca_vlc_offs[c]]; + dca_smpl_bitalloc[i + 1].vlc[j].table_allocated = dca_vlc_offs[c + 1] - dca_vlc_offs[c]; + + init_vlc(&dca_smpl_bitalloc[i + 1].vlc[j], bitalloc_maxbits[i][j], bitalloc_sizes[i], bitalloc_bits[i][j], 1, 1, bitalloc_codes[i][j], 2, 2, INIT_VLC_USE_NEW_STATIC); @@ -433,19 +454,19 @@ static av_cold void dca_init_vlcs(void) static inline void get_array(GetBitContext *gb, int *dst, int len, int bits) { - while(len--) + while (len--) *dst++ = get_bits(gb, bits); } -static int dca_parse_audio_coding_header(DCAContext * s, int base_channel) +static int dca_parse_audio_coding_header(DCAContext *s, int base_channel) { int i, j; static const float adj_table[4] = { 1.0, 1.1250, 1.2500, 1.4375 }; static const int bitlen[11] = { 0, 1, 2, 2, 2, 2, 3, 3, 3, 3, 3 }; - static const int thr[11] = { 0, 1, 3, 3, 3, 3, 7, 7, 7, 7, 7 }; + static const int thr[11] = { 0, 1, 3, 3, 3, 3, 7, 7, 7, 7, 7 }; - s->total_channels = get_bits(&s->gb, 3) + 1 + base_channel; - s->prim_channels = s->total_channels; + s->total_channels = get_bits(&s->gb, 3) + 1 + base_channel; + s->prim_channels = s->total_channels; if (s->prim_channels > DCA_PRIM_CHANNELS_MAX) s->prim_channels = DCA_PRIM_CHANNELS_MAX; @@ -488,23 +509,28 @@ static int dca_parse_audio_coding_header(DCAContext * s, int base_channel) get_bits(&s->gb, 16); } - s->current_subframe = 0; + s->current_subframe = 0; s->current_subsubframe = 0; #ifdef TRACE av_log(s->avctx, AV_LOG_DEBUG, "subframes: %i\n", s->subframes); av_log(s->avctx, AV_LOG_DEBUG, "prim channels: %i\n", s->prim_channels); - for (i = base_channel; i < s->prim_channels; i++){ - av_log(s->avctx, AV_LOG_DEBUG, "subband activity: %i\n", s->subband_activity[i]); - av_log(s->avctx, AV_LOG_DEBUG, "vq start subband: %i\n", s->vq_start_subband[i]); - av_log(s->avctx, AV_LOG_DEBUG, "joint intensity: %i\n", s->joint_intensity[i]); - av_log(s->avctx, AV_LOG_DEBUG, "transient mode codebook: %i\n", s->transient_huffman[i]); - av_log(s->avctx, AV_LOG_DEBUG, "scale factor codebook: %i\n", s->scalefactor_huffman[i]); - av_log(s->avctx, AV_LOG_DEBUG, "bit allocation quantizer: %i\n", s->bitalloc_huffman[i]); + for (i = base_channel; i < s->prim_channels; i++) { + av_log(s->avctx, AV_LOG_DEBUG, "subband activity: %i\n", + s->subband_activity[i]); + av_log(s->avctx, AV_LOG_DEBUG, "vq start subband: %i\n", + s->vq_start_subband[i]); + av_log(s->avctx, AV_LOG_DEBUG, "joint intensity: %i\n", + s->joint_intensity[i]); + av_log(s->avctx, AV_LOG_DEBUG, "transient mode codebook: %i\n", + s->transient_huffman[i]); + av_log(s->avctx, AV_LOG_DEBUG, "scale factor codebook: %i\n", + s->scalefactor_huffman[i]); + av_log(s->avctx, AV_LOG_DEBUG, "bit allocation quantizer: %i\n", + s->bitalloc_huffman[i]); av_log(s->avctx, AV_LOG_DEBUG, "quant index huff:"); for (j = 0; j < 11; j++) - av_log(s->avctx, AV_LOG_DEBUG, " %i", - s->quant_index_huffman[i][j]); + av_log(s->avctx, AV_LOG_DEBUG, " %i", s->quant_index_huffman[i][j]); av_log(s->avctx, AV_LOG_DEBUG, "\n"); av_log(s->avctx, AV_LOG_DEBUG, "scalefac adj:"); for (j = 0; j < 11; j++) @@ -513,10 +539,10 @@ static int dca_parse_audio_coding_header(DCAContext * s, int base_channel) } #endif - return 0; + return 0; } -static int dca_parse_frame_header(DCAContext * s) +static int dca_parse_frame_header(DCAContext *s) { init_get_bits(&s->gb, s->dca_buffer, s->dca_buffer_size * 8); @@ -565,7 +591,8 @@ static int dca_parse_frame_header(DCAContext * s) /* FIXME: channels mixing levels */ s->output = s->amode; - if (s->lfe) s->output |= DCA_LFE; + if (s->lfe) + s->output |= DCA_LFE; #ifdef TRACE av_log(s->avctx, AV_LOG_DEBUG, "frame type: %i\n", s->frame_type); @@ -614,15 +641,15 @@ static int dca_parse_frame_header(DCAContext * s) static inline int get_scale(GetBitContext *gb, int level, int value) { - if (level < 5) { - /* huffman encoded */ - value += get_bitalloc(gb, &dca_scalefactor, level); - } else if (level < 8) - value = get_bits(gb, level + 1); - return value; + if (level < 5) { + /* huffman encoded */ + value += get_bitalloc(gb, &dca_scalefactor, level); + } else if (level < 8) + value = get_bits(gb, level + 1); + return value; } -static int dca_subframe_header(DCAContext * s, int base_channel, int block_index) +static int dca_subframe_header(DCAContext *s, int base_channel, int block_index) { /* Primary audio coding side information */ int j, k; @@ -631,7 +658,7 @@ static int dca_subframe_header(DCAContext * s, int base_channel, int block_index return AVERROR_INVALIDDATA; if (!base_channel) { - s->subsubframes[s->current_subframe] = get_bits(&s->gb, 2) + 1; + s->subsubframes[s->current_subframe] = get_bits(&s->gb, 2) + 1; s->partial_samples[s->current_subframe] = get_bits(&s->gb, 3); } @@ -667,8 +694,8 @@ static int dca_subframe_header(DCAContext * s, int base_channel, int block_index } if (s->bitalloc[j][k] > 26) { -// av_log(s->avctx,AV_LOG_DEBUG,"bitalloc index [%i][%i] too big (%i)\n", -// j, k, s->bitalloc[j][k]); + // av_log(s->avctx, AV_LOG_DEBUG, "bitalloc index [%i][%i] too big (%i)\n", + // j, k, s->bitalloc[j][k]); return AVERROR_INVALIDDATA; } } @@ -693,7 +720,8 @@ static int dca_subframe_header(DCAContext * s, int base_channel, int block_index const uint32_t *scale_table; int scale_sum; - memset(s->scale_factor[j], 0, s->subband_activity[j] * sizeof(s->scale_factor[0][0][0]) * 2); + memset(s->scale_factor[j], 0, + s->subband_activity[j] * sizeof(s->scale_factor[0][0][0]) * 2); if (s->scalefactor_huffman[j] == 6) scale_table = scale_factor_quant7; @@ -811,9 +839,11 @@ static int dca_subframe_header(DCAContext * s, int base_channel, int block_index } #ifdef TRACE - av_log(s->avctx, AV_LOG_DEBUG, "subsubframes: %i\n", s->subsubframes[s->current_subframe]); + av_log(s->avctx, AV_LOG_DEBUG, "subsubframes: %i\n", + s->subsubframes[s->current_subframe]); av_log(s->avctx, AV_LOG_DEBUG, "partial samples: %i\n", s->partial_samples[s->current_subframe]); + for (j = base_channel; j < s->prim_channels; j++) { av_log(s->avctx, AV_LOG_DEBUG, "prediction mode:"); for (k = 0; k < s->subband_activity[j]; k++) @@ -822,12 +852,12 @@ static int dca_subframe_header(DCAContext * s, int base_channel, int block_index } for (j = base_channel; j < s->prim_channels; j++) { for (k = 0; k < s->subband_activity[j]; k++) - av_log(s->avctx, AV_LOG_DEBUG, - "prediction coefs: %f, %f, %f, %f\n", - (float) adpcm_vb[s->prediction_vq[j][k]][0] / 8192, - (float) adpcm_vb[s->prediction_vq[j][k]][1] / 8192, - (float) adpcm_vb[s->prediction_vq[j][k]][2] / 8192, - (float) adpcm_vb[s->prediction_vq[j][k]][3] / 8192); + av_log(s->avctx, AV_LOG_DEBUG, + "prediction coefs: %f, %f, %f, %f\n", + (float) adpcm_vb[s->prediction_vq[j][k]][0] / 8192, + (float) adpcm_vb[s->prediction_vq[j][k]][1] / 8192, + (float) adpcm_vb[s->prediction_vq[j][k]][2] / 8192, + (float) adpcm_vb[s->prediction_vq[j][k]][3] / 8192); } for (j = base_channel; j < s->prim_channels; j++) { av_log(s->avctx, AV_LOG_DEBUG, "bitalloc index: "); @@ -863,8 +893,10 @@ static int dca_subframe_header(DCAContext * s, int base_channel, int block_index if (!base_channel && s->prim_channels > 2 && s->downmix) { av_log(s->avctx, AV_LOG_DEBUG, "Downmix coeffs:\n"); for (j = 0; j < s->prim_channels; j++) { - av_log(s->avctx, AV_LOG_DEBUG, "Channel 0,%d = %f\n", j, dca_downmix_coeffs[s->downmix_coef[j][0]]); - av_log(s->avctx, AV_LOG_DEBUG, "Channel 1,%d = %f\n", j, dca_downmix_coeffs[s->downmix_coef[j][1]]); + av_log(s->avctx, AV_LOG_DEBUG, "Channel 0, %d = %f\n", j, + dca_downmix_coeffs[s->downmix_coef[j][0]]); + av_log(s->avctx, AV_LOG_DEBUG, "Channel 1, %d = %f\n", j, + dca_downmix_coeffs[s->downmix_coef[j][1]]); } av_log(s->avctx, AV_LOG_DEBUG, "\n"); } @@ -885,7 +917,7 @@ static int dca_subframe_header(DCAContext * s, int base_channel, int block_index return 0; } -static void qmf_32_subbands(DCAContext * s, int chans, +static void qmf_32_subbands(DCAContext *s, int chans, float samples_in[32][8], float *samples_out, float scale) { @@ -895,7 +927,7 @@ static void qmf_32_subbands(DCAContext * s, int chans, int sb_act = s->subband_activity[chans]; int subindex; - scale *= sqrt(1/8.0); + scale *= sqrt(1 / 8.0); /* Select filter */ if (!s->multirate_inter) /* Non-perfect reconstruction */ @@ -909,18 +941,18 @@ static void qmf_32_subbands(DCAContext * s, int chans, /* Reconstructed channel sample index */ for (subindex = 0; subindex < 8; subindex++) { /* Load in one sample from each subband and clear inactive subbands */ - for (i = 0; i < sb_act; i++){ + for (i = 0; i < sb_act; i++) { unsigned sign = (i - 1) & 2; - uint32_t v = AV_RN32A(&samples_in[i][subindex]) ^ sign << 30; + uint32_t v = AV_RN32A(&samples_in[i][subindex]) ^ sign << 30; AV_WN32A(&s->raXin[i], v); } s->synth.synth_filter_float(&s->imdct, - s->subband_fir_hist[chans], &s->hist_index[chans], - s->subband_fir_noidea[chans], prCoeff, - samples_out, s->raXin, scale); - samples_out+= 32; - + s->subband_fir_hist[chans], + &s->hist_index[chans], + s->subband_fir_noidea[chans], prCoeff, + samples_out, s->raXin, scale); + samples_out += 32; } } @@ -950,45 +982,44 @@ static void lfe_interpolation_fir(DCAContext *s, int decimation_select, } /* Interpolation */ for (deciindex = 0; deciindex < num_deci_sample; deciindex++) { - s->dcadsp.lfe_fir(samples_out, samples_in, prCoeff, decifactor, - scale); + s->dcadsp.lfe_fir(samples_out, samples_in, prCoeff, decifactor, scale); samples_in++; samples_out += 2 * decifactor; } } /* downmixing routines */ -#define MIX_REAR1(samples, si1, rs, coef) \ - samples[i] += samples[si1] * coef[rs][0]; \ - samples[i+256] += samples[si1] * coef[rs][1]; - -#define MIX_REAR2(samples, si1, si2, rs, coef) \ - samples[i] += samples[si1] * coef[rs][0] + samples[si2] * coef[rs+1][0]; \ - samples[i+256] += samples[si1] * coef[rs][1] + samples[si2] * coef[rs+1][1]; - -#define MIX_FRONT3(samples, coef) \ - t = samples[i+c]; \ - u = samples[i+l]; \ - v = samples[i+r]; \ +#define MIX_REAR1(samples, si1, rs, coef) \ + samples[i] += samples[si1] * coef[rs][0]; \ + samples[i+256] += samples[si1] * coef[rs][1]; + +#define MIX_REAR2(samples, si1, si2, rs, coef) \ + samples[i] += samples[si1] * coef[rs][0] + samples[si2] * coef[rs + 1][0]; \ + samples[i+256] += samples[si1] * coef[rs][1] + samples[si2] * coef[rs + 1][1]; + +#define MIX_FRONT3(samples, coef) \ + t = samples[i + c]; \ + u = samples[i + l]; \ + v = samples[i + r]; \ samples[i] = t * coef[0][0] + u * coef[1][0] + v * coef[2][0]; \ samples[i+256] = t * coef[0][1] + u * coef[1][1] + v * coef[2][1]; -#define DOWNMIX_TO_STEREO(op1, op2) \ - for (i = 0; i < 256; i++){ \ - op1 \ - op2 \ +#define DOWNMIX_TO_STEREO(op1, op2) \ + for (i = 0; i < 256; i++) { \ + op1 \ + op2 \ } static void dca_downmix(float *samples, int srcfmt, int downmix_coef[DCA_PRIM_CHANNELS_MAX][2], const int8_t *channel_mapping) { - int c,l,r,sl,sr,s; + int c, l, r, sl, sr, s; int i; float t, u, v; float coef[DCA_PRIM_CHANNELS_MAX][2]; - for (i=0; i<DCA_PRIM_CHANNELS_MAX; i++) { + for (i = 0; i < DCA_PRIM_CHANNELS_MAX; i++) { coef[i][0] = dca_downmix_coeffs[downmix_coef[i][0]]; coef[i][1] = dca_downmix_coeffs[downmix_coef[i][1]]; } @@ -1007,11 +1038,11 @@ static void dca_downmix(float *samples, int srcfmt, c = channel_mapping[0] * 256; l = channel_mapping[1] * 256; r = channel_mapping[2] * 256; - DOWNMIX_TO_STEREO(MIX_FRONT3(samples, coef),); + DOWNMIX_TO_STEREO(MIX_FRONT3(samples, coef), ); break; case DCA_2F1R: s = channel_mapping[2] * 256; - DOWNMIX_TO_STEREO(MIX_REAR1(samples, i + s, 2, coef),); + DOWNMIX_TO_STEREO(MIX_REAR1(samples, i + s, 2, coef), ); break; case DCA_3F1R: c = channel_mapping[0] * 256; @@ -1024,12 +1055,12 @@ static void dca_downmix(float *samples, int srcfmt, case DCA_2F2R: sl = channel_mapping[2] * 256; sr = channel_mapping[3] * 256; - DOWNMIX_TO_STEREO(MIX_REAR2(samples, i + sl, i + sr, 2, coef),); + DOWNMIX_TO_STEREO(MIX_REAR2(samples, i + sl, i + sr, 2, coef), ); break; case DCA_3F2R: - c = channel_mapping[0] * 256; - l = channel_mapping[1] * 256; - r = channel_mapping[2] * 256; + c = channel_mapping[0] * 256; + l = channel_mapping[1] * 256; + r = channel_mapping[2] * 256; sl = channel_mapping[3] * 256; sr = channel_mapping[4] * 256; DOWNMIX_TO_STEREO(MIX_FRONT3(samples, coef), @@ -1049,7 +1080,7 @@ static int decode_blockcode(int code, int levels, int *values) for (i = 0; i < 4; i++) { int div = FASTDIV(code, levels); - values[i] = code - offset - div*levels; + values[i] = code - offset - div * levels; code = div; } @@ -1063,8 +1094,8 @@ static int decode_blockcodes(int code1, int code2, int levels, int *values) } #endif -static const uint8_t abits_sizes[7] = { 7, 10, 12, 13, 15, 17, 19 }; -static const uint8_t abits_levels[7] = { 3, 5, 7, 9, 13, 17, 25 }; +static const uint8_t abits_sizes[7] = { 7, 10, 12, 13, 15, 17, 19 }; +static const uint8_t abits_levels[7] = { 3, 5, 7, 9, 13, 17, 25 }; #ifndef int8x8_fmul_int32 static inline void int8x8_fmul_int32(float *dst, const int8_t *src, int scale) @@ -1076,7 +1107,7 @@ static inline void int8x8_fmul_int32(float *dst, const int8_t *src, int scale) } #endif -static int dca_subsubframe(DCAContext * s, int base_channel, int block_index) +static int dca_subsubframe(DCAContext *s, int base_channel, int block_index) { int k, l; int subsubframe = s->current_subsubframe; @@ -1119,20 +1150,21 @@ static int dca_subsubframe(DCAContext * s, int base_channel, int block_index) /* * Extract bits from the bit stream */ - if (!abits){ + if (!abits) { memset(subband_samples[k][l], 0, 8 * sizeof(subband_samples[0][0][0])); } else { /* Deal with transients */ int sfi = s->transition_mode[k][l] && subsubframe >= s->transition_mode[k][l]; - float rscale = quant_step_size * s->scale_factor[k][l][sfi] * s->scalefactor_adj[k][sel]; + float rscale = quant_step_size * s->scale_factor[k][l][sfi] * + s->scalefactor_adj[k][sel]; - if (abits >= 11 || !dca_smpl_bitalloc[abits].vlc[sel].table){ - if (abits <= 7){ + if (abits >= 11 || !dca_smpl_bitalloc[abits].vlc[sel].table) { + if (abits <= 7) { /* Block code */ int block_code1, block_code2, size, levels, err; - size = abits_sizes[abits-1]; - levels = abits_levels[abits-1]; + size = abits_sizes[abits - 1]; + levels = abits_levels[abits - 1]; block_code1 = get_bits(&s->gb, size); block_code2 = get_bits(&s->gb, size); @@ -1143,19 +1175,20 @@ static int dca_subsubframe(DCAContext * s, int base_channel, int block_index) "ERROR: block code look-up failed\n"); return AVERROR_INVALIDDATA; } - }else{ + } else { /* no coding */ for (m = 0; m < 8; m++) block[m] = get_sbits(&s->gb, abits - 3); } - }else{ + } else { /* Huffman coded */ for (m = 0; m < 8; m++) - block[m] = get_bitalloc(&s->gb, &dca_smpl_bitalloc[abits], sel); + block[m] = get_bitalloc(&s->gb, + &dca_smpl_bitalloc[abits], sel); } s->fmt_conv.int32_to_float_fmul_scalar(subband_samples[k][l], - block, rscale, 8); + block, rscale, 8); } /* @@ -1172,8 +1205,7 @@ static int dca_subsubframe(DCAContext * s, int base_channel, int block_index) else if (s->predictor_history) subband_samples[k][l][m] += (adpcm_vb[s->prediction_vq[k][l]][n - 1] * - s->subband_samples_hist[k][l][m - n + - 4] / 8192); + s->subband_samples_hist[k][l][m - n + 4] / 8192); } } } @@ -1187,7 +1219,8 @@ static int dca_subsubframe(DCAContext * s, int base_channel, int block_index) int hfvq = s->high_freq_vq[k][l]; if (!s->debug_flag & 0x01) { - av_log(s->avctx, AV_LOG_DEBUG, "Stream with high frequencies VQ coding\n"); + av_log(s->avctx, AV_LOG_DEBUG, + "Stream with high frequencies VQ coding\n"); s->debug_flag |= 0x01; } @@ -1211,23 +1244,25 @@ static int dca_subsubframe(DCAContext * s, int base_channel, int block_index) /* Backup predictor history for adpcm */ for (k = base_channel; k < s->prim_channels; k++) for (l = 0; l < s->vq_start_subband[k]; l++) - memcpy(s->subband_samples_hist[k][l], &subband_samples[k][l][4], - 4 * sizeof(subband_samples[0][0][0])); + memcpy(s->subband_samples_hist[k][l], + &subband_samples[k][l][4], + 4 * sizeof(subband_samples[0][0][0])); return 0; } -static int dca_filter_channels(DCAContext * s, int block_index) +static int dca_filter_channels(DCAContext *s, int block_index) { float (*subband_samples)[DCA_SUBBANDS][8] = s->subband_samples[block_index]; int k; /* 32 subbands QMF */ for (k = 0; k < s->prim_channels; k++) { -/* static float pcm_to_double[8] = - {32768.0, 32768.0, 524288.0, 524288.0, 0, 8388608.0, 8388608.0};*/ - qmf_32_subbands(s, k, subband_samples[k], &s->samples[256 * s->channel_order_tab[k]], - M_SQRT1_2*s->scale_bias /*pcm_to_double[s->source_pcm_res] */ ); +/* static float pcm_to_double[8] = { 32768.0, 32768.0, 524288.0, 524288.0, + 0, 8388608.0, 8388608.0 };*/ + qmf_32_subbands(s, k, subband_samples[k], + &s->samples[256 * s->channel_order_tab[k]], + M_SQRT1_2 * s->scale_bias /* pcm_to_double[s->source_pcm_res] */); } /* Down mixing */ @@ -1240,7 +1275,7 @@ static int dca_filter_channels(DCAContext * s, int block_index) lfe_interpolation_fir(s, s->lfe, 2 * s->lfe, s->lfe_data + 2 * s->lfe * (block_index + 4), &s->samples[256 * dca_lfe_index[s->amode]], - (1.0/256.0)*s->scale_bias); + (1.0 / 256.0) * s->scale_bias); /* Outputs 20bits pcm samples */ } @@ -1248,7 +1283,7 @@ static int dca_filter_channels(DCAContext * s, int block_index) } -static int dca_subframe_footer(DCAContext * s, int base_channel) +static int dca_subframe_footer(DCAContext *s, int base_channel) { int aux_data_count = 0, i; @@ -1280,7 +1315,7 @@ static int dca_subframe_footer(DCAContext * s, int base_channel) * @param s pointer to the DCAContext */ -static int dca_decode_block(DCAContext * s, int base_channel, int block_index) +static int dca_decode_block(DCAContext *s, int base_channel, int block_index) { int ret; @@ -1328,8 +1363,8 @@ static int dca_decode_block(DCAContext * s, int base_channel, int block_index) /** * Convert bitstream to one representation based on sync marker */ -static int dca_convert_bitstream(const uint8_t * src, int src_size, uint8_t * dst, - int max_size) +static int dca_convert_bitstream(const uint8_t *src, int src_size, uint8_t *dst, + int max_size) { uint32_t mrk; int i, tmp; @@ -1337,7 +1372,7 @@ static int dca_convert_bitstream(const uint8_t * src, int src_size, uint8_t * ds uint16_t *sdst = (uint16_t *) dst; PutBitContext pb; - if ((unsigned)src_size > (unsigned)max_size) { + if ((unsigned) src_size > (unsigned) max_size) { // av_log(NULL, AV_LOG_ERROR, "Input frame size larger than DCA_MAX_FRAME_SIZE!\n"); // return -1; src_size = max_size; @@ -1372,18 +1407,16 @@ static int dca_convert_bitstream(const uint8_t * src, int src_size, uint8_t * ds static int dca_exss_mask2count(int mask) { /* count bits that mean speaker pairs twice */ - return av_popcount(mask) - + av_popcount(mask & ( - DCA_EXSS_CENTER_LEFT_RIGHT - | DCA_EXSS_FRONT_LEFT_RIGHT - | DCA_EXSS_FRONT_HIGH_LEFT_RIGHT - | DCA_EXSS_WIDE_LEFT_RIGHT - | DCA_EXSS_SIDE_LEFT_RIGHT - | DCA_EXSS_SIDE_HIGH_LEFT_RIGHT - | DCA_EXSS_SIDE_REAR_LEFT_RIGHT - | DCA_EXSS_REAR_LEFT_RIGHT - | DCA_EXSS_REAR_HIGH_LEFT_RIGHT - )); + return av_popcount(mask) + + av_popcount(mask & (DCA_EXSS_CENTER_LEFT_RIGHT | + DCA_EXSS_FRONT_LEFT_RIGHT | + DCA_EXSS_FRONT_HIGH_LEFT_RIGHT | + DCA_EXSS_WIDE_LEFT_RIGHT | + DCA_EXSS_SIDE_LEFT_RIGHT | + DCA_EXSS_SIDE_HIGH_LEFT_RIGHT | + DCA_EXSS_SIDE_REAR_LEFT_RIGHT | + DCA_EXSS_REAR_LEFT_RIGHT | + DCA_EXSS_REAR_HIGH_LEFT_RIGHT)); } /** @@ -1409,7 +1442,7 @@ static int dca_exss_parse_asset_header(DCAContext *s) int header_size; int channels; int embedded_stereo = 0; - int embedded_6ch = 0; + int embedded_6ch = 0; int drc_code_present; int extensions_mask; int i, j; @@ -1544,7 +1577,8 @@ static int dca_exss_parse_asset_header(DCAContext *s) if (!(extensions_mask & DCA_EXT_CORE)) av_log(s->avctx, AV_LOG_WARNING, "DTS core detection mismatch.\n"); if ((extensions_mask & DCA_CORE_EXTS) != s->core_ext_mask) - av_log(s->avctx, AV_LOG_WARNING, "DTS extensions detection mismatch (%d, %d)\n", + av_log(s->avctx, AV_LOG_WARNING, + "DTS extensions detection mismatch (%d, %d)\n", extensions_mask & DCA_CORE_EXTS, s->core_ext_mask); return 0; @@ -1569,7 +1603,7 @@ static void dca_exss_parse_header(DCAContext *s) ss_index = get_bits(&s->gb, 2); blownup = get_bits1(&s->gb); - skip_bits(&s->gb, 8 + 4 * blownup); // header_size + skip_bits(&s->gb, 8 + 4 * blownup); // header_size skip_bits(&s->gb, 16 + 4 * blownup); // hd_size s->static_fields = get_bits1(&s->gb); @@ -1610,18 +1644,18 @@ static void dca_exss_parse_header(DCAContext *s) int mix_out_mask_size; skip_bits(&s->gb, 2); // adjustment level - mix_out_mask_size = (get_bits(&s->gb, 2) + 1) << 2; - s->num_mix_configs = get_bits(&s->gb, 2) + 1; + mix_out_mask_size = (get_bits(&s->gb, 2) + 1) << 2; + s->num_mix_configs = get_bits(&s->gb, 2) + 1; for (i = 0; i < s->num_mix_configs; i++) { - int mix_out_mask = get_bits(&s->gb, mix_out_mask_size); + int mix_out_mask = get_bits(&s->gb, mix_out_mask_size); s->mix_config_num_ch[i] = dca_exss_mask2count(mix_out_mask); } } } for (i = 0; i < num_assets; i++) - skip_bits_long(&s->gb, 16 + 4 * blownup); // asset size + skip_bits_long(&s->gb, 16 + 4 * blownup); // asset size for (i = 0; i < num_assets; i++) { if (dca_exss_parse_asset_header(s)) @@ -1668,8 +1702,8 @@ static int dca_decode_frame(AVCodecContext *avctx, void *data, } //set AVCodec values with parsed data avctx->sample_rate = s->sample_rate; - avctx->bit_rate = s->bit_rate; - avctx->frame_size = s->sample_blocks * 32; + avctx->bit_rate = s->bit_rate; + avctx->frame_size = s->sample_blocks * 32; s->profile = FF_PROFILE_DTS; @@ -1701,72 +1735,71 @@ static int dca_decode_frame(AVCodecContext *avctx, void *data, /* extensions start at 32-bit boundaries into bitstream */ skip_bits_long(&s->gb, (-get_bits_count(&s->gb)) & 31); - while(core_ss_end - get_bits_count(&s->gb) >= 32) { - uint32_t bits = get_bits_long(&s->gb, 32); + while (core_ss_end - get_bits_count(&s->gb) >= 32) { + uint32_t bits = get_bits_long(&s->gb, 32); - switch(bits) { - case 0x5a5a5a5a: { - int ext_amode, xch_fsize; + switch (bits) { + case 0x5a5a5a5a: { + int ext_amode, xch_fsize; - s->xch_base_channel = s->prim_channels; + s->xch_base_channel = s->prim_channels; - /* validate sync word using XCHFSIZE field */ - xch_fsize = show_bits(&s->gb, 10); - if((s->frame_size != (get_bits_count(&s->gb) >> 3) - 4 + xch_fsize) && - (s->frame_size != (get_bits_count(&s->gb) >> 3) - 4 + xch_fsize + 1)) - continue; - - /* skip length-to-end-of-frame field for the moment */ - skip_bits(&s->gb, 10); - - s->core_ext_mask |= DCA_EXT_XCH; + /* validate sync word using XCHFSIZE field */ + xch_fsize = show_bits(&s->gb, 10); + if ((s->frame_size != (get_bits_count(&s->gb) >> 3) - 4 + xch_fsize) && + (s->frame_size != (get_bits_count(&s->gb) >> 3) - 4 + xch_fsize + 1)) + continue; - /* extension amode should == 1, number of channels in extension */ - /* AFAIK XCh is not used for more channels */ - if ((ext_amode = get_bits(&s->gb, 4)) != 1) { - av_log(avctx, AV_LOG_ERROR, "XCh extension amode %d not" - " supported!\n",ext_amode); - continue; - } + /* skip length-to-end-of-frame field for the moment */ + skip_bits(&s->gb, 10); - /* much like core primary audio coding header */ - dca_parse_audio_coding_header(s, s->xch_base_channel); + s->core_ext_mask |= DCA_EXT_XCH; - for (i = 0; i < (s->sample_blocks / 8); i++) { - if ((ret = dca_decode_block(s, s->xch_base_channel, i))) { - av_log(avctx, AV_LOG_ERROR, "error decoding XCh extension\n"); + /* extension amode(number of channels in extension) should be 1 */ + /* AFAIK XCh is not used for more channels */ + if ((ext_amode = get_bits(&s->gb, 4)) != 1) { + av_log(avctx, AV_LOG_ERROR, "XCh extension amode %d not" + " supported!\n", ext_amode); continue; } + + /* much like core primary audio coding header */ + dca_parse_audio_coding_header(s, s->xch_base_channel); + + for (i = 0; i < (s->sample_blocks / 8); i++) + if ((ret = dca_decode_block(s, s->xch_base_channel, i))) { + av_log(avctx, AV_LOG_ERROR, "error decoding XCh extension\n"); + continue; + } + + s->xch_present = 1; + break; } + case 0x47004a03: + /* XXCh: extended channels */ + /* usually found either in core or HD part in DTS-HD HRA streams, + * but not in DTS-ES which contains XCh extensions instead */ + s->core_ext_mask |= DCA_EXT_XXCH; + break; + + case 0x1d95f262: { + int fsize96 = show_bits(&s->gb, 12) + 1; + if (s->frame_size != (get_bits_count(&s->gb) >> 3) - 4 + fsize96) + continue; - s->xch_present = 1; - break; - } - case 0x47004a03: - /* XXCh: extended channels */ - /* usually found either in core or HD part in DTS-HD HRA streams, - * but not in DTS-ES which contains XCh extensions instead */ - s->core_ext_mask |= DCA_EXT_XXCH; - break; - - case 0x1d95f262: { - int fsize96 = show_bits(&s->gb, 12) + 1; - if (s->frame_size != (get_bits_count(&s->gb) >> 3) - 4 + fsize96) - continue; - - av_log(avctx, AV_LOG_DEBUG, "X96 extension found at %d bits\n", get_bits_count(&s->gb)); - skip_bits(&s->gb, 12); - av_log(avctx, AV_LOG_DEBUG, "FSIZE96 = %d bytes\n", fsize96); - av_log(avctx, AV_LOG_DEBUG, "REVNO = %d\n", get_bits(&s->gb, 4)); - - s->core_ext_mask |= DCA_EXT_X96; - break; - } - } + av_log(avctx, AV_LOG_DEBUG, "X96 extension found at %d bits\n", + get_bits_count(&s->gb)); + skip_bits(&s->gb, 12); + av_log(avctx, AV_LOG_DEBUG, "FSIZE96 = %d bytes\n", fsize96); + av_log(avctx, AV_LOG_DEBUG, "REVNO = %d\n", get_bits(&s->gb, 4)); - skip_bits_long(&s->gb, (-get_bits_count(&s->gb)) & 31); - } + s->core_ext_mask |= DCA_EXT_X96; + break; + } + } + skip_bits_long(&s->gb, (-get_bits_count(&s->gb)) & 31); + } } else { /* no supported extensions, skip the rest of the core substream */ skip_bits_long(&s->gb, core_ss_end - get_bits_count(&s->gb)); @@ -1778,15 +1811,15 @@ static int dca_decode_frame(AVCodecContext *avctx, void *data, s->profile = FF_PROFILE_DTS_ES; /* check for ExSS (HD part) */ - if (s->dca_buffer_size - s->frame_size > 32 - && get_bits_long(&s->gb, 32) == DCA_HD_MARKER) + if (s->dca_buffer_size - s->frame_size > 32 && + get_bits_long(&s->gb, 32) == DCA_HD_MARKER) dca_exss_parse_header(s); avctx->profile = s->profile; channels = s->prim_channels + !!s->lfe; - if (s->amode<16) { + if (s->amode < 16) { avctx->channel_layout = dca_core_channel_layout[s->amode]; if (s->xch_present && (!avctx->request_channels || @@ -1818,7 +1851,7 @@ static int dca_decode_frame(AVCodecContext *avctx, void *data, avctx->channel_layout = AV_CH_LAYOUT_STEREO; } } else { - av_log(avctx, AV_LOG_ERROR, "Non standard configuration %d !\n",s->amode); + av_log(avctx, AV_LOG_ERROR, "Non standard configuration %d !\n", s->amode); return AVERROR_INVALIDDATA; } @@ -1844,8 +1877,8 @@ static int dca_decode_frame(AVCodecContext *avctx, void *data, av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n"); return ret; } - samples_flt = (float *)s->frame.data[0]; - samples_s16 = (int16_t *)s->frame.data[0]; + samples_flt = (float *) s->frame.data[0]; + samples_s16 = (int16_t *) s->frame.data[0]; /* filter to get final output */ for (i = 0; i < (s->sample_blocks / 8); i++) { @@ -1853,10 +1886,10 @@ static int dca_decode_frame(AVCodecContext *avctx, void *data, /* If this was marked as a DTS-ES stream we need to subtract back- */ /* channel from SL & SR to remove matrixed back-channel signal */ - if((s->source_pcm_res & 1) && s->xch_present) { - float* back_chan = s->samples + s->channel_order_tab[s->xch_base_channel] * 256; - float* lt_chan = s->samples + s->channel_order_tab[s->xch_base_channel - 2] * 256; - float* rt_chan = s->samples + s->channel_order_tab[s->xch_base_channel - 1] * 256; + if ((s->source_pcm_res & 1) && s->xch_present) { + float *back_chan = s->samples + s->channel_order_tab[s->xch_base_channel] * 256; + float *lt_chan = s->samples + s->channel_order_tab[s->xch_base_channel - 2] * 256; + float *rt_chan = s->samples + s->channel_order_tab[s->xch_base_channel - 1] * 256; s->dsp.vector_fmac_scalar(lt_chan, back_chan, -M_SQRT1_2, 256); s->dsp.vector_fmac_scalar(rt_chan, back_chan, -M_SQRT1_2, 256); } @@ -1875,12 +1908,11 @@ static int dca_decode_frame(AVCodecContext *avctx, void *data, /* update lfe history */ lfe_samples = 2 * s->lfe * (s->sample_blocks / 8); - for (i = 0; i < 2 * s->lfe * 4; i++) { + for (i = 0; i < 2 * s->lfe * 4; i++) s->lfe_data[i] = s->lfe_data[i + lfe_samples]; - } - *got_frame_ptr = 1; - *(AVFrame *)data = s->frame; + *got_frame_ptr = 1; + *(AVFrame *) data = s->frame; return buf_size; } @@ -1893,7 +1925,7 @@ static int dca_decode_frame(AVCodecContext *avctx, void *data, * @param avctx pointer to the AVCodecContext */ -static av_cold int dca_decode_init(AVCodecContext * avctx) +static av_cold int dca_decode_init(AVCodecContext *avctx) { DCAContext *s = avctx->priv_data; int i; @@ -1907,15 +1939,15 @@ static av_cold int dca_decode_init(AVCodecContext * avctx) ff_dcadsp_init(&s->dcadsp); ff_fmt_convert_init(&s->fmt_conv, avctx); - for (i = 0; i < DCA_PRIM_CHANNELS_MAX+1; i++) + for (i = 0; i < DCA_PRIM_CHANNELS_MAX + 1; i++) s->samples_chanptr[i] = s->samples + i * 256; if (avctx->request_sample_fmt == AV_SAMPLE_FMT_FLT) { avctx->sample_fmt = AV_SAMPLE_FMT_FLT; - s->scale_bias = 1.0 / 32768.0; + s->scale_bias = 1.0 / 32768.0; } else { avctx->sample_fmt = AV_SAMPLE_FMT_S16; - s->scale_bias = 1.0; + s->scale_bias = 1.0; } /* allow downmixing to stereo */ @@ -1930,7 +1962,7 @@ static av_cold int dca_decode_init(AVCodecContext * avctx) return 0; } -static av_cold int dca_decode_end(AVCodecContext * avctx) +static av_cold int dca_decode_end(AVCodecContext *avctx) { DCAContext *s = avctx->priv_data; ff_mdct_end(&s->imdct); @@ -1947,17 +1979,17 @@ static const AVProfile profiles[] = { }; AVCodec ff_dca_decoder = { - .name = "dca", - .type = AVMEDIA_TYPE_AUDIO, - .id = CODEC_ID_DTS, - .priv_data_size = sizeof(DCAContext), - .init = dca_decode_init, - .decode = dca_decode_frame, - .close = dca_decode_end, - .long_name = NULL_IF_CONFIG_SMALL("DCA (DTS Coherent Acoustics)"), - .capabilities = CODEC_CAP_CHANNEL_CONF | CODEC_CAP_DR1, - .sample_fmts = (const enum AVSampleFormat[]) { - AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_NONE - }, - .profiles = NULL_IF_CONFIG_SMALL(profiles), + .name = "dca", + .type = AVMEDIA_TYPE_AUDIO, + .id = CODEC_ID_DTS, + .priv_data_size = sizeof(DCAContext), + .init = dca_decode_init, + .decode = dca_decode_frame, + .close = dca_decode_end, + .long_name = NULL_IF_CONFIG_SMALL("DCA (DTS Coherent Acoustics)"), + .capabilities = CODEC_CAP_CHANNEL_CONF | CODEC_CAP_DR1, + .sample_fmts = (const enum AVSampleFormat[]) { AV_SAMPLE_FMT_FLT, + AV_SAMPLE_FMT_S16, + AV_SAMPLE_FMT_NONE }, + .profiles = NULL_IF_CONFIG_SMALL(profiles), }; |