diff options
author | Diego Biurrun <diego@biurrun.de> | 2005-12-17 21:14:38 +0300 |
---|---|---|
committer | Diego Biurrun <diego@biurrun.de> | 2005-12-17 21:14:38 +0300 |
commit | 115329f16062074e11ccf3b89ead6176606c9696 (patch) | |
tree | e98aa993905a702688bf821737ab9a443969fc28 /libavcodec/wmadec.c | |
parent | d76319b1ab716320f6e6a4d690b85fe4504ebd5b (diff) |
COSMETICS: Remove all trailing whitespace.
Originally committed as revision 4749 to svn://svn.ffmpeg.org/ffmpeg/trunk
Diffstat (limited to 'libavcodec/wmadec.c')
-rw-r--r-- | libavcodec/wmadec.c | 120 |
1 files changed, 60 insertions, 60 deletions
diff --git a/libavcodec/wmadec.c b/libavcodec/wmadec.c index 9ea685af1b..147bb5abbb 100644 --- a/libavcodec/wmadec.c +++ b/libavcodec/wmadec.c @@ -21,13 +21,13 @@ * @file wmadec.c * WMA compatible decoder. * This decoder handles Microsoft Windows Media Audio data, versions 1 & 2. - * WMA v1 is identified by audio format 0x160 in Microsoft media files + * WMA v1 is identified by audio format 0x160 in Microsoft media files * (ASF/AVI/WAV). WMA v2 is identified by audio format 0x161. * * To use this decoder, a calling application must supply the extra data * bytes provided with the WMA data. These are the extra, codec-specific - * bytes at the end of a WAVEFORMATEX data structure. Transmit these bytes - * to the decoder using the extradata[_size] fields in AVCodecContext. There + * bytes at the end of a WAVEFORMATEX data structure. Transmit these bytes + * to the decoder using the extradata[_size] fields in AVCodecContext. There * should be 4 extra bytes for v1 data and 6 extra bytes for v2 data. */ @@ -75,9 +75,9 @@ typedef struct WMADecodeContext { int coefs_start; /* first coded coef */ int coefs_end[BLOCK_NB_SIZES]; /* max number of coded coefficients */ int exponent_high_sizes[BLOCK_NB_SIZES]; - int exponent_high_bands[BLOCK_NB_SIZES][HIGH_BAND_MAX_SIZE]; + int exponent_high_bands[BLOCK_NB_SIZES][HIGH_BAND_MAX_SIZE]; VLC hgain_vlc; - + /* coded values in high bands */ int high_band_coded[MAX_CHANNELS][HIGH_BAND_MAX_SIZE]; int high_band_values[MAX_CHANNELS][HIGH_BAND_MAX_SIZE]; @@ -171,7 +171,7 @@ static void dump_floats(const char *name, int prec, const float *tab, int n) #endif /* XXX: use same run/length optimization as mpeg decoders */ -static void init_coef_vlc(VLC *vlc, +static void init_coef_vlc(VLC *vlc, uint16_t **prun_table, uint16_t **plevel_table, const CoefVLCTable *vlc_table) { @@ -213,7 +213,7 @@ static int wma_decode_init(AVCodecContext * avctx) volatile float bps; int sample_rate1; int coef_vlc_table; - + s->sample_rate = avctx->sample_rate; s->nb_channels = avctx->channels; s->bit_rate = avctx->bit_rate; @@ -224,7 +224,7 @@ static int wma_decode_init(AVCodecContext * avctx) } else { s->version = 2; } - + /* extract flag infos */ flags1 = 0; flags2 = 0; @@ -233,7 +233,7 @@ static int wma_decode_init(AVCodecContext * avctx) flags1 = extradata[0] | (extradata[1] << 8); flags2 = extradata[2] | (extradata[3] << 8); } else if (s->version == 2 && avctx->extradata_size >= 6) { - flags1 = extradata[0] | (extradata[1] << 8) | + flags1 = extradata[0] | (extradata[1] << 8) | (extradata[2] << 16) | (extradata[3] << 24); flags2 = extradata[4] | (extradata[5] << 8); } @@ -244,7 +244,7 @@ static int wma_decode_init(AVCodecContext * avctx) /* compute MDCT block size */ if (s->sample_rate <= 16000) { s->frame_len_bits = 9; - } else if (s->sample_rate <= 22050 || + } else if (s->sample_rate <= 22050 || (s->sample_rate <= 32000 && s->version == 1)) { s->frame_len_bits = 10; } else { @@ -271,15 +271,15 @@ static int wma_decode_init(AVCodecContext * avctx) /* if version 2, then the rates are normalized */ sample_rate1 = s->sample_rate; if (s->version == 2) { - if (sample_rate1 >= 44100) + if (sample_rate1 >= 44100) sample_rate1 = 44100; - else if (sample_rate1 >= 22050) + else if (sample_rate1 >= 22050) sample_rate1 = 22050; - else if (sample_rate1 >= 16000) + else if (sample_rate1 >= 16000) sample_rate1 = 16000; - else if (sample_rate1 >= 11025) + else if (sample_rate1 >= 11025) sample_rate1 = 11025; - else if (sample_rate1 >= 8000) + else if (sample_rate1 >= 8000) sample_rate1 = 8000; } @@ -299,7 +299,7 @@ static int wma_decode_init(AVCodecContext * avctx) } else if (sample_rate1 == 22050) { if (bps1 >= 1.16) s->use_noise_coding = 0; - else if (bps1 >= 0.72) + else if (bps1 >= 0.72) high_freq = high_freq * 0.7; else high_freq = high_freq * 0.6; @@ -329,9 +329,9 @@ static int wma_decode_init(AVCodecContext * avctx) } dprintf("flags1=0x%x flags2=0x%x\n", flags1, flags2); dprintf("version=%d channels=%d sample_rate=%d bitrate=%d block_align=%d\n", - s->version, s->nb_channels, s->sample_rate, s->bit_rate, + s->version, s->nb_channels, s->sample_rate, s->bit_rate, s->block_align); - dprintf("bps=%f bps1=%f high_freq=%f bitoffset=%d\n", + dprintf("bps=%f bps1=%f high_freq=%f bitoffset=%d\n", bps, bps1, high_freq, s->byte_offset_bits); dprintf("use_noise_coding=%d use_exp_vlc=%d nb_block_sizes=%d\n", s->use_noise_coding, s->use_exp_vlc, s->nb_block_sizes); @@ -340,7 +340,7 @@ static int wma_decode_init(AVCodecContext * avctx) { int a, b, pos, lpos, k, block_len, i, j, n; const uint8_t *table; - + if (s->version == 1) { s->coefs_start = 3; } else { @@ -355,7 +355,7 @@ static int wma_decode_init(AVCodecContext * avctx) a = wma_critical_freqs[i]; b = s->sample_rate; pos = ((block_len * 2 * a) + (b >> 1)) / b; - if (pos > block_len) + if (pos > block_len) pos = block_len; s->exponent_bands[0][i] = pos - lpos; if (pos >= block_len) { @@ -390,7 +390,7 @@ static int wma_decode_init(AVCodecContext * avctx) b = s->sample_rate; pos = ((block_len * 2 * a) + (b << 1)) / (4 * b); pos <<= 2; - if (pos > block_len) + if (pos > block_len) pos = block_len; if (pos > lpos) s->exponent_bands[k][j++] = pos - lpos; @@ -405,7 +405,7 @@ static int wma_decode_init(AVCodecContext * avctx) /* max number of coefs */ s->coefs_end[k] = (s->frame_len - ((s->frame_len * 9) / 100)) >> k; /* high freq computation */ - s->high_band_start[k] = (int)((block_len * 2 * high_freq) / + s->high_band_start[k] = (int)((block_len * 2 * high_freq) / s->sample_rate + 0.5); n = s->exponent_sizes[k]; j = 0; @@ -425,7 +425,7 @@ static int wma_decode_init(AVCodecContext * avctx) s->exponent_high_sizes[k] = j; #if 0 tprintf("%5d: coefs_end=%d high_band_start=%d nb_high_bands=%d: ", - s->frame_len >> k, + s->frame_len >> k, s->coefs_end[k], s->high_band_start[k], s->exponent_high_sizes[k]); @@ -440,8 +440,8 @@ static int wma_decode_init(AVCodecContext * avctx) { int i, j; for(i = 0; i < s->nb_block_sizes; i++) { - tprintf("%5d: n=%2d:", - s->frame_len >> i, + tprintf("%5d: n=%2d:", + s->frame_len >> i, s->exponent_sizes[i]); for(j=0;j<s->exponent_sizes[i];j++) tprintf(" %d", s->exponent_bands[i][j]); @@ -453,7 +453,7 @@ static int wma_decode_init(AVCodecContext * avctx) /* init MDCT */ for(i = 0; i < s->nb_block_sizes; i++) ff_mdct_init(&s->mdct_ctx[i], s->frame_len_bits - i + 1, 1); - + /* init MDCT windows : simple sinus window */ for(i = 0; i < s->nb_block_sizes; i++) { int n, j; @@ -468,7 +468,7 @@ static int wma_decode_init(AVCodecContext * avctx) } s->reset_block_lengths = 1; - + if (s->use_noise_coding) { /* init the noise generator */ @@ -476,7 +476,7 @@ static int wma_decode_init(AVCodecContext * avctx) s->noise_mult = 0.02; else s->noise_mult = 0.04; - + #ifdef TRACE for(i=0;i<NOISE_TAB_SIZE;i++) s->noise_table[i] = 1.0 * s->noise_mult; @@ -492,13 +492,13 @@ static int wma_decode_init(AVCodecContext * avctx) } } #endif - init_vlc(&s->hgain_vlc, 9, sizeof(hgain_huffbits), + init_vlc(&s->hgain_vlc, 9, sizeof(hgain_huffbits), hgain_huffbits, 1, 1, hgain_huffcodes, 2, 2, 0); } if (s->use_exp_vlc) { - init_vlc(&s->exp_vlc, 9, sizeof(scale_huffbits), + init_vlc(&s->exp_vlc, 9, sizeof(scale_huffbits), scale_huffbits, 1, 1, scale_huffcodes, 4, 4, 0); } else { @@ -572,7 +572,7 @@ static inline float pow_m1_4(WMADecodeContext *s, float x) } static void wma_lsp_to_curve_init(WMADecodeContext *s, int frame_len) -{ +{ float wdel, a, b; int i, e, m; @@ -610,8 +610,8 @@ static void wma_lsp_to_curve_init(WMADecodeContext *s, int frame_len) /* NOTE: We use the same code as Vorbis here */ /* XXX: optimize it further with SSE/3Dnow */ -static void wma_lsp_to_curve(WMADecodeContext *s, - float *out, float *val_max_ptr, +static void wma_lsp_to_curve(WMADecodeContext *s, + float *out, float *val_max_ptr, int n, float *lsp) { int i, j; @@ -661,7 +661,7 @@ static int decode_exp_vlc(WMADecodeContext *s, int ch) int last_exp, n, code; const uint16_t *ptr, *band_ptr; float v, *q, max_scale, *q_end; - + band_ptr = s->exponent_bands[s->frame_len_bits - s->block_len_bits]; ptr = band_ptr; q = s->exponents[ch]; @@ -719,7 +719,7 @@ static int wma_decode_block(WMADecodeContext *s) /* compute current block length */ if (s->use_variable_block_len) { n = av_log2(s->nb_block_sizes - 1) + 1; - + if (s->reset_block_lengths) { s->reset_block_lengths = 0; v = get_bits(&s->gb, n); @@ -776,7 +776,7 @@ static int wma_decode_block(WMADecodeContext *s) if (a != 127) break; } - + if (total_gain < 15) coef_nb_bits = 13; else if (total_gain < 32) @@ -831,13 +831,13 @@ static int wma_decode_block(WMADecodeContext *s) } } } - + /* exposant can be interpolated in short blocks. */ parse_exponents = 1; if (s->block_len_bits != s->frame_len_bits) { parse_exponents = get_bits(&s->gb, 1); } - + if (parse_exponents) { for(ch = 0; ch < s->nb_channels; ch++) { if (s->channel_coded[ch]) { @@ -852,7 +852,7 @@ static int wma_decode_block(WMADecodeContext *s) } else { for(ch = 0; ch < s->nb_channels; ch++) { if (s->channel_coded[ch]) { - interpolate_array(s->exponents[ch], 1 << s->prev_block_len_bits, + interpolate_array(s->exponents[ch], 1 << s->prev_block_len_bits, s->block_len); } } @@ -910,7 +910,7 @@ static int wma_decode_block(WMADecodeContext *s) align_get_bits(&s->gb); } } - + /* normalize */ { int n4 = s->block_len / 2; @@ -940,16 +940,16 @@ static int wma_decode_block(WMADecodeContext *s) *coefs++ = s->noise_table[s->noise_index] * (*exponents++) * mult1; s->noise_index = (s->noise_index + 1) & (NOISE_TAB_SIZE - 1); } - + n1 = s->exponent_high_sizes[bsize]; /* compute power of high bands */ - exp_ptr = exponents + - s->high_band_start[bsize] - + exp_ptr = exponents + + s->high_band_start[bsize] - s->coefs_start; last_high_band = 0; /* avoid warning */ for(j=0;j<n1;j++) { - n = s->exponent_high_bands[s->frame_len_bits - + n = s->exponent_high_bands[s->frame_len_bits - s->block_len_bits][j]; if (s->high_band_coded[ch][j]) { float e2, v; @@ -968,10 +968,10 @@ static int wma_decode_block(WMADecodeContext *s) /* main freqs and high freqs */ for(j=-1;j<n1;j++) { if (j < 0) { - n = s->high_band_start[bsize] - + n = s->high_band_start[bsize] - s->coefs_start; } else { - n = s->exponent_high_bands[s->frame_len_bits - + n = s->exponent_high_bands[s->frame_len_bits - s->block_len_bits][j]; } if (j >= 0 && s->high_band_coded[ch][j]) { @@ -1026,7 +1026,7 @@ static int wma_decode_block(WMADecodeContext *s) } } #endif - + if (s->ms_stereo && s->channel_coded[1]) { float a, b; int i; @@ -1039,7 +1039,7 @@ static int wma_decode_block(WMADecodeContext *s) memset(s->coefs[0], 0, sizeof(float) * s->block_len); s->channel_coded[0] = 1; } - + for(i = 0; i < s->block_len; i++) { a = s->coefs[0][i]; b = s->coefs[1][i]; @@ -1092,7 +1092,7 @@ static int wma_decode_block(WMADecodeContext *s) } } - + for(ch = 0; ch < s->nb_channels; ch++) { if (s->channel_coded[ch]) { FFTSample output[BLOCK_MAX_SIZE * 2] __attribute__((aligned(16))); @@ -1101,7 +1101,7 @@ static int wma_decode_block(WMADecodeContext *s) n = s->block_len; n4 = s->block_len / 2; - ff_imdct_calc(&s->mdct_ctx[bsize], + ff_imdct_calc(&s->mdct_ctx[bsize], output, s->coefs[ch], s->mdct_tmp); /* XXX: optimize all that by build the window and @@ -1156,7 +1156,7 @@ static int wma_decode_frame(WMADecodeContext *s, int16_t *samples) s->block_pos = 0; for(;;) { ret = wma_decode_block(s); - if (ret < 0) + if (ret < 0) return -1; if (ret) break; @@ -1182,7 +1182,7 @@ static int wma_decode_frame(WMADecodeContext *s, int16_t *samples) memmove(&s->frame_out[ch][0], &s->frame_out[ch][s->frame_len], s->frame_len * sizeof(float)); /* XXX: suppress this */ - memset(&s->frame_out[ch][s->frame_len], 0, + memset(&s->frame_out[ch][s->frame_len], 0, s->frame_len * sizeof(float)); } @@ -1192,7 +1192,7 @@ static int wma_decode_frame(WMADecodeContext *s, int16_t *samples) return 0; } -static int wma_decode_superframe(AVCodecContext *avctx, +static int wma_decode_superframe(AVCodecContext *avctx, void *data, int *data_size, uint8_t *buf, int buf_size) { @@ -1200,18 +1200,18 @@ static int wma_decode_superframe(AVCodecContext *avctx, int nb_frames, bit_offset, i, pos, len; uint8_t *q; int16_t *samples; - + tprintf("***decode_superframe:\n"); if(buf_size==0){ s->last_superframe_len = 0; return 0; } - + samples = data; init_get_bits(&s->gb, buf, buf_size*8); - + if (s->use_bit_reservoir) { /* read super frame header */ get_bits(&s->gb, 4); /* super frame index */ @@ -1222,7 +1222,7 @@ static int wma_decode_superframe(AVCodecContext *avctx, if (s->last_superframe_len > 0) { // printf("skip=%d\n", s->last_bitoffset); /* add bit_offset bits to last frame */ - if ((s->last_superframe_len + ((bit_offset + 7) >> 3)) > + if ((s->last_superframe_len + ((bit_offset + 7) >> 3)) > MAX_CODED_SUPERFRAME_SIZE) goto fail; q = s->last_superframe + s->last_superframe_len; @@ -1234,7 +1234,7 @@ static int wma_decode_superframe(AVCodecContext *avctx, if (len > 0) { *q++ = (get_bits)(&s->gb, len) << (8 - len); } - + /* XXX: bit_offset bits into last frame */ init_get_bits(&s->gb, s->last_superframe, MAX_CODED_SUPERFRAME_SIZE*8); /* skip unused bits */ @@ -1253,7 +1253,7 @@ static int wma_decode_superframe(AVCodecContext *avctx, len = pos & 7; if (len > 0) skip_bits(&s->gb, len); - + s->reset_block_lengths = 1; for(i=0;i<nb_frames;i++) { if (wma_decode_frame(s, samples) < 0) @@ -1306,7 +1306,7 @@ static int wma_decode_end(AVCodecContext *avctx) av_free(s->run_table[i]); av_free(s->level_table[i]); } - + return 0; } |