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author | Måns Rullgård <mans@mansr.com> | 2007-02-05 19:35:36 +0000 |
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committer | Måns Rullgård <mans@mansr.com> | 2007-02-05 19:35:36 +0000 |
commit | ac49ddc60df866a042d9023b1d9230b3ab2c0cad (patch) | |
tree | 77de42acfcd3dccfd48140b5614b7afe8f2a636c | |
parent | d6ceace3e25bc68687409412df07b059e13c7664 (diff) | |
download | ffmpeg-ac49ddc60df866a042d9023b1d9230b3ab2c0cad.tar.gz |
cosmetic: indent sensibly so code can be read at all
Originally committed as revision 7835 to svn://svn.ffmpeg.org/ffmpeg/trunk
-rw-r--r-- | libavcodec/dtsdec.c | 364 |
1 files changed, 177 insertions, 187 deletions
diff --git a/libavcodec/dtsdec.c b/libavcodec/dtsdec.c index a58a3ccb99..df15f158c7 100644 --- a/libavcodec/dtsdec.c +++ b/libavcodec/dtsdec.c @@ -44,8 +44,8 @@ #define CONVERT_BIAS 384 #endif -static inline -int16_t convert (int32_t i) +static inline int16_t +convert(int32_t i) { #ifdef LIBDTS_FIXED i >>= 15; @@ -56,265 +56,255 @@ int16_t convert (int32_t i) } static void -convert2s16_2 (sample_t * _f, int16_t * s16) +convert2s16_2(sample_t * _f, int16_t * s16) { - int i; - int32_t * f = (int32_t *) _f; + int i; + int32_t *f = (int32_t *) _f; - for (i = 0; i < 256; i++) - { - s16[2*i] = convert (f[i]); - s16[2*i+1] = convert (f[i+256]); + for(i = 0; i < 256; i++) { + s16[2 * i] = convert(f[i]); + s16[2 * i + 1] = convert(f[i + 256]); } } static void -convert2s16_4 (sample_t * _f, int16_t * s16) +convert2s16_4(sample_t * _f, int16_t * s16) { - int i; - int32_t * f = (int32_t *) _f; + int i; + int32_t *f = (int32_t *) _f; - for (i = 0; i < 256; i++) - { - s16[4*i] = convert (f[i]); - s16[4*i+1] = convert (f[i+256]); - s16[4*i+2] = convert (f[i+512]); - s16[4*i+3] = convert (f[i+768]); + for(i = 0; i < 256; i++) { + s16[4 * i] = convert(f[i]); + s16[4 * i + 1] = convert(f[i + 256]); + s16[4 * i + 2] = convert(f[i + 512]); + s16[4 * i + 3] = convert(f[i + 768]); } } static void -convert2s16_5 (sample_t * _f, int16_t * s16) +convert2s16_5(sample_t * _f, int16_t * s16) { - int i; - int32_t * f = (int32_t *) _f; + int i; + int32_t *f = (int32_t *) _f; - for (i = 0; i < 256; i++) - { - s16[5*i] = convert (f[i]); - s16[5*i+1] = convert (f[i+256]); - s16[5*i+2] = convert (f[i+512]); - s16[5*i+3] = convert (f[i+768]); - s16[5*i+4] = convert (f[i+1024]); + for(i = 0; i < 256; i++) { + s16[5 * i] = convert(f[i]); + s16[5 * i + 1] = convert(f[i + 256]); + s16[5 * i + 2] = convert(f[i + 512]); + s16[5 * i + 3] = convert(f[i + 768]); + s16[5 * i + 4] = convert(f[i + 1024]); } } static void -convert2s16_multi (sample_t * _f, int16_t * s16, int flags) +convert2s16_multi(sample_t * _f, int16_t * s16, int flags) { - int i; - int32_t * f = (int32_t *) _f; + int i; + int32_t *f = (int32_t *) _f; - switch (flags) - { + switch (flags) { case DTS_MONO: - for (i = 0; i < 256; i++) - { - s16[5*i] = s16[5*i+1] = s16[5*i+2] = s16[5*i+3] = 0; - s16[5*i+4] = convert (f[i]); + for(i = 0; i < 256; i++) { + s16[5 * i] = s16[5 * i + 1] = s16[5 * i + 2] = s16[5 * i + 3] = + 0; + s16[5 * i + 4] = convert(f[i]); } - break; + break; case DTS_CHANNEL: case DTS_STEREO: case DTS_DOLBY: - convert2s16_2 (_f, s16); - break; + convert2s16_2(_f, s16); + break; case DTS_3F: - for (i = 0; i < 256; i++) - { - s16[5*i] = convert (f[i]); - s16[5*i+1] = convert (f[i+512]); - s16[5*i+2] = s16[5*i+3] = 0; - s16[5*i+4] = convert (f[i+256]); + for(i = 0; i < 256; i++) { + s16[5 * i] = convert(f[i]); + s16[5 * i + 1] = convert(f[i + 512]); + s16[5 * i + 2] = s16[5 * i + 3] = 0; + s16[5 * i + 4] = convert(f[i + 256]); } - break; + break; case DTS_2F2R: - convert2s16_4 (_f, s16); - break; + convert2s16_4(_f, s16); + break; case DTS_3F2R: - convert2s16_5 (_f, s16); - break; + convert2s16_5(_f, s16); + break; case DTS_MONO | DTS_LFE: - for (i = 0; i < 256; i++) - { - s16[6*i] = s16[6*i+1] = s16[6*i+2] = s16[6*i+3] = 0; - s16[6*i+4] = convert (f[i+256]); - s16[6*i+5] = convert (f[i]); + for(i = 0; i < 256; i++) { + s16[6 * i] = s16[6 * i + 1] = s16[6 * i + 2] = s16[6 * i + 3] = + 0; + s16[6 * i + 4] = convert(f[i + 256]); + s16[6 * i + 5] = convert(f[i]); } - break; + break; case DTS_CHANNEL | DTS_LFE: case DTS_STEREO | DTS_LFE: case DTS_DOLBY | DTS_LFE: - for (i = 0; i < 256; i++) - { - s16[6*i] = convert (f[i+256]); - s16[6*i+1] = convert (f[i+512]); - s16[6*i+2] = s16[6*i+3] = s16[6*i+4] = 0; - s16[6*i+5] = convert (f[i]); + for(i = 0; i < 256; i++) { + s16[6 * i] = convert(f[i + 256]); + s16[6 * i + 1] = convert(f[i + 512]); + s16[6 * i + 2] = s16[6 * i + 3] = s16[6 * i + 4] = 0; + s16[6 * i + 5] = convert(f[i]); } - break; + break; case DTS_3F | DTS_LFE: - for (i = 0; i < 256; i++) - { - s16[6*i] = convert (f[i+256]); - s16[6*i+1] = convert (f[i+768]); - s16[6*i+2] = s16[6*i+3] = 0; - s16[6*i+4] = convert (f[i+512]); - s16[6*i+5] = convert (f[i]); + for(i = 0; i < 256; i++) { + s16[6 * i] = convert(f[i + 256]); + s16[6 * i + 1] = convert(f[i + 768]); + s16[6 * i + 2] = s16[6 * i + 3] = 0; + s16[6 * i + 4] = convert(f[i + 512]); + s16[6 * i + 5] = convert(f[i]); } - break; + break; case DTS_2F2R | DTS_LFE: - for (i = 0; i < 256; i++) - { - s16[6*i] = convert (f[i+256]); - s16[6*i+1] = convert (f[i+512]); - s16[6*i+2] = convert (f[i+768]); - s16[6*i+3] = convert (f[i+1024]); - s16[6*i+4] = 0; - s16[6*i+5] = convert (f[i]); + for(i = 0; i < 256; i++) { + s16[6 * i] = convert(f[i + 256]); + s16[6 * i + 1] = convert(f[i + 512]); + s16[6 * i + 2] = convert(f[i + 768]); + s16[6 * i + 3] = convert(f[i + 1024]); + s16[6 * i + 4] = 0; + s16[6 * i + 5] = convert(f[i]); } - break; + break; case DTS_3F2R | DTS_LFE: - for (i = 0; i < 256; i++) - { - s16[6*i] = convert (f[i+256]); - s16[6*i+1] = convert (f[i+768]); - s16[6*i+2] = convert (f[i+1024]); - s16[6*i+3] = convert (f[i+1280]); - s16[6*i+4] = convert (f[i+512]); - s16[6*i+5] = convert (f[i]); + for(i = 0; i < 256; i++) { + s16[6 * i] = convert(f[i + 256]); + s16[6 * i + 1] = convert(f[i + 768]); + s16[6 * i + 2] = convert(f[i + 1024]); + s16[6 * i + 3] = convert(f[i + 1280]); + s16[6 * i + 4] = convert(f[i + 512]); + s16[6 * i + 5] = convert(f[i]); } - break; + break; } } static int -channels_multi (int flags) +channels_multi(int flags) { - if (flags & DTS_LFE) - return 6; - else if (flags & 1) /* center channel */ - return 5; - else if ((flags & DTS_CHANNEL_MASK) == DTS_2F2R) - return 4; - else - return 2; + if(flags & DTS_LFE) + return 6; + else if(flags & 1) /* center channel */ + return 5; + else if((flags & DTS_CHANNEL_MASK) == DTS_2F2R) + return 4; + else + return 2; } static int -dts_decode_frame (AVCodecContext *avctx, void *data, int *data_size, - uint8_t *buff, int buff_size) +dts_decode_frame(AVCodecContext * avctx, void *data, int *data_size, + uint8_t * buff, int buff_size) { - uint8_t * start = buff; - uint8_t * end = buff + buff_size; - static uint8_t buf[BUFFER_SIZE]; - static uint8_t * bufptr = buf; - static uint8_t * bufpos = buf + HEADER_SIZE; - int16_t *out_samples = data; - static int sample_rate; - static int frame_length; - static int flags; - int bit_rate; - int len; - dts_state_t *state = avctx->priv_data; + uint8_t *start = buff; + uint8_t *end = buff + buff_size; + static uint8_t buf[BUFFER_SIZE]; + static uint8_t *bufptr = buf; + static uint8_t *bufpos = buf + HEADER_SIZE; + int16_t *out_samples = data; + static int sample_rate; + static int frame_length; + static int flags; + int bit_rate; + int len; + dts_state_t *state = avctx->priv_data; - *data_size = 0; + *data_size = 0; - while (1) - { - len = end - start; - if (!len) - break; - if (len > bufpos - bufptr) - len = bufpos - bufptr; - memcpy (bufptr, start, len); - bufptr += len; - start += len; - if (bufptr != bufpos) - return start - buff; - if (bufpos != buf + HEADER_SIZE) - break; + while(1) { + len = end - start; + if(!len) + break; + if(len > bufpos - bufptr) + len = bufpos - bufptr; + memcpy(bufptr, start, len); + bufptr += len; + start += len; + if(bufptr != bufpos) + return start - buff; + if(bufpos != buf + HEADER_SIZE) + break; - { - int length; + { + int length; - length = dts_syncinfo (state, buf, &flags, &sample_rate, - &bit_rate, &frame_length); - if (!length) - { - av_log (NULL, AV_LOG_INFO, "skip\n"); - for (bufptr = buf; bufptr < buf + HEADER_SIZE-1; bufptr++) + length = + dts_syncinfo(state, buf, &flags, &sample_rate, &bit_rate, + &frame_length); + if(!length) { + av_log(NULL, AV_LOG_INFO, "skip\n"); + for(bufptr = buf; bufptr < buf + HEADER_SIZE - 1; bufptr++) bufptr[0] = bufptr[1]; - continue; - } - bufpos = buf + length; + continue; } + bufpos = buf + length; + } } - { - level_t level; - sample_t bias; - int i; + { + level_t level; + sample_t bias; + int i; - flags = 2; /* ???????????? */ - level = CONVERT_LEVEL; - bias = CONVERT_BIAS; + flags = 2; /* ???????????? */ + level = CONVERT_LEVEL; + bias = CONVERT_BIAS; - flags |= DTS_ADJUST_LEVEL; - if (dts_frame (state, buf, &flags, &level, bias)) + flags |= DTS_ADJUST_LEVEL; + if(dts_frame(state, buf, &flags, &level, bias)) + goto error; + avctx->sample_rate = sample_rate; + avctx->channels = channels_multi(flags); + avctx->bit_rate = bit_rate; + for(i = 0; i < dts_blocks_num(state); i++) { + if(dts_block(state)) goto error; - avctx->sample_rate = sample_rate; - avctx->channels = channels_multi (flags); - avctx->bit_rate = bit_rate; - for (i = 0; i < dts_blocks_num (state); i++) - { - if (dts_block (state)) - goto error; - { - int chans; - chans = channels_multi (flags); - convert2s16_multi (dts_samples (state), out_samples, - flags & (DTS_CHANNEL_MASK | DTS_LFE)); + { + int chans; + + chans = channels_multi(flags); + convert2s16_multi(dts_samples(state), out_samples, + flags & (DTS_CHANNEL_MASK | DTS_LFE)); - out_samples += 256 * chans; - *data_size += 256 * sizeof (int16_t) * chans; - } - } - bufptr = buf; - bufpos = buf + HEADER_SIZE; - return start-buff; - error: - av_log (NULL, AV_LOG_ERROR, "error\n"); - bufptr = buf; - bufpos = buf + HEADER_SIZE; + out_samples += 256 * chans; + *data_size += 256 * sizeof(int16_t) * chans; } + } + bufptr = buf; + bufpos = buf + HEADER_SIZE; + return start - buff; + error: + av_log(NULL, AV_LOG_ERROR, "error\n"); + bufptr = buf; + bufpos = buf + HEADER_SIZE; + } - return start-buff; + return start - buff; } static int -dts_decode_init (AVCodecContext *avctx) +dts_decode_init(AVCodecContext * avctx) { - avctx->priv_data = dts_init (0); - if (avctx->priv_data == NULL) - return -1; + avctx->priv_data = dts_init(0); + if(avctx->priv_data == NULL) + return -1; - return 0; + return 0; } static int -dts_decode_end (AVCodecContext *s) +dts_decode_end(AVCodecContext * s) { - return 0; + return 0; } AVCodec dts_decoder = { - "dts", - CODEC_TYPE_AUDIO, - CODEC_ID_DTS, - sizeof (dts_state_t *), - dts_decode_init, - NULL, - dts_decode_end, - dts_decode_frame, + "dts", + CODEC_TYPE_AUDIO, + CODEC_ID_DTS, + sizeof(dts_state_t *), + dts_decode_init, + NULL, + dts_decode_end, + dts_decode_frame, }; 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