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author | Matthias P. Braendli <matthias.braendli@mpb.li> | 2016-02-15 02:44:20 +0100 |
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committer | Matthias P. Braendli <matthias.braendli@mpb.li> | 2016-02-15 02:44:20 +0100 |
commit | 22f1fce330059ef8a383cf327a023d6a9da5ad3e (patch) | |
tree | 6893f158dcaaaa1b9f1317923c32a841ba31f768 /libtoolame-dab/toolame.c | |
parent | 891bb2592944aa2be2d81e1583e73e632e70537f (diff) | |
download | fdk-aac-dabplus-22f1fce330059ef8a383cf327a023d6a9da5ad3e.tar.gz fdk-aac-dabplus-22f1fce330059ef8a383cf327a023d6a9da5ad3e.tar.bz2 fdk-aac-dabplus-22f1fce330059ef8a383cf327a023d6a9da5ad3e.zip |
Include toolame-dab as library
Diffstat (limited to 'libtoolame-dab/toolame.c')
-rw-r--r-- | libtoolame-dab/toolame.c | 1457 |
1 files changed, 1457 insertions, 0 deletions
diff --git a/libtoolame-dab/toolame.c b/libtoolame-dab/toolame.c new file mode 100644 index 0000000..09eb69e --- /dev/null +++ b/libtoolame-dab/toolame.c @@ -0,0 +1,1457 @@ +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#if defined(JACK_INPUT) +# include <jack/jack.h> +# include <jack/ringbuffer.h> +#endif +#include "common.h" +#include "encoder.h" +#include "musicin.h" +#include "options.h" +#include "audio_read.h" +#include "bitstream.h" +#include "mem.h" +#include "crc.h" +#include "psycho_n1.h" +#include "psycho_0.h" +#include "psycho_1.h" +#include "psycho_2.h" +#include "psycho_3.h" +#include "psycho_4.h" +#include "encode.h" +#include "availbits.h" +#include "subband.h" +#include "encode_new.h" +#include "toolame.h" +#include "xpad.h" +#include "utils.h" +#include "vlc_input.h" +#include "zmqoutput.h" + +#include <assert.h> + +music_in_t musicin; +Bit_stream_struc bs; +char *programName; +char toolameversion[] = "0.2l-ODR"; + +const int FPAD_LENGTH=2; + +void global_init (void) +{ + glopts.usepsy = TRUE; + glopts.usepadbit = TRUE; + glopts.quickmode = FALSE; + glopts.quickcount = 10; + glopts.downmix = FALSE; + glopts.byteswap = FALSE; + glopts.channelswap = FALSE; + glopts.vbr = FALSE; + glopts.vbrlevel = 0; + glopts.athlevel = 0; + glopts.verbosity = 2; + glopts.input_select = 0; +} + +/************************************************************************ + * + * main + * + * PURPOSE: MPEG II Encoder with + * psychoacoustic models 1 (MUSICAM) and 2 (AT&T) + * + * SEMANTICS: One overlapping frame of audio of up to 2 channels are + * processed at a time in the following order: + * (associated routines are in parentheses) + * + * 1. Filter sliding window of data to get 32 subband + * samples per channel. + * (window_subband,filter_subband) + * + * 2. If joint stereo mode, combine left and right channels + * for subbands above #jsbound#. + * (combine_LR) + * + * 3. Calculate scalefactors for the frame, and + * also calculate scalefactor select information. + * (*_scale_factor_calc) + * + * 4. Calculate psychoacoustic masking levels using selected + * psychoacoustic model. + * (psycho_i, psycho_ii) + * + * 5. Perform iterative bit allocation for subbands with low + * mask_to_noise ratios using masking levels from step 4. + * (*_main_bit_allocation) + * + * 6. If error protection flag is active, add redundancy for + * error protection. + * (*_CRC_calc) + * + * 7. Pack bit allocation, scalefactors, and scalefactor select + *headerrmation onto bitstream. + * (*_encode_bit_alloc,*_encode_scale,transmission_pattern) + * + * 8. Quantize subbands and pack them into bitstream + * (*_subband_quantization, *_sample_encoding) + * + ************************************************************************/ + +static frame_info frame; +static frame_header header; +static int frameNum; +static int xpad_len; +static int psycount; +static int model; +static unsigned int crc; + +typedef double SBS[2][3][SCALE_BLOCK][SBLIMIT]; +typedef double JSBS[3][SCALE_BLOCK][SBLIMIT]; +typedef unsigned int SUB[2][3][SCALE_BLOCK][SBLIMIT]; + +static SBS *sb_sample; +static JSBS *j_sample; +static SUB *subband; + +static unsigned int scalar[2][3][SBLIMIT]; +static unsigned int j_scale[3][SBLIMIT]; + +static double smr[2][SBLIMIT]; +static double max_sc[2][SBLIMIT]; +static short sam[2][1344]; + +/* Used to keep the SNR values for the fast/quick psy models */ +static FLOAT smrdef[2][32]; + +static unsigned int scfsi[2][SBLIMIT]; +static unsigned int bit_alloc[2][SBLIMIT]; + +static uint8_t* xpad_data; + +int toolame_init(void) +{ + frameNum = 0; + psycount = 0; + + header.extension = 0; + frame.header = &header; + frame.tab_num = -1; /* no table loaded */ + frame.alloc = NULL; + header.version = MPEG_AUDIO_ID; /* Default: MPEG-1 */ + + sb_sample = (SBS *) mem_alloc (sizeof (SBS), "sb_sample"); + j_sample = (JSBS *) mem_alloc (sizeof (JSBS), "j_sample"); + subband = (SUB *) mem_alloc (sizeof (SUB), "subband"); + memset ((char *) scalar, 0, sizeof (scalar)); + memset ((char *) j_scale, 0, sizeof (j_scale)); + memset ((char *) smr, 0, sizeof (smr)); + memset ((char *) max_sc, 0, sizeof (max_sc)); + memset ((char *) sam, 0, sizeof (sam)); + memset ((char *) scfsi, 0, sizeof (scfsi)); + memset ((char *) bit_alloc, 0, sizeof (bit_alloc)); + + xpad_data = NULL; + + return 0; +} + +int toolame_encode_frame(short buffer[2][1152]) +{ + extern int minimum; + const int nch = frame.nch; + const int error_protection = header.error_protection; + + short *win_buf[2] = {&buffer[0][0], &buffer[1][0]}; + + int adb = available_bits (&header, &glopts); + int lg_frame = adb / 8; + if (header.dab_extension) { + /* You must have one frame in memory if you are in DAB mode */ + /* in conformity of the norme ETS 300 401 http://www.etsi.org */ + /* see bitstream.c */ + if (frameNum == 1) + minimum = lg_frame + MINIMUM; + adb -= header.dab_extension * 8 + (xpad_len ? xpad_len : FPAD_LENGTH) * 8; + } + + { + int gr, bl, ch; + /* New polyphase filter + Combines windowing and filtering. Ricardo Feb'03 */ + for( gr = 0; gr < 3; gr++ ) + for ( bl = 0; bl < 12; bl++ ) + for ( ch = 0; ch < nch; ch++ ) + WindowFilterSubband( &buffer[ch][gr * 12 * 32 + 32 * bl], ch, + &(*sb_sample)[ch][gr][bl][0] ); + } + +#ifdef REFERENCECODE + { + /* Old code. left here for reference */ + int gr, bl, ch; + for (gr = 0; gr < 3; gr++) + for (bl = 0; bl < SCALE_BLOCK; bl++) + for (ch = 0; ch < nch; ch++) { + window_subband (&win_buf[ch], &(*win_que)[ch][0], ch); + filter_subband (&(*win_que)[ch][0], &(*sb_sample)[ch][gr][bl][0]); + } + } +#endif + + +#ifdef NEWENCODE + scalefactor_calc_new(*sb_sample, scalar, nch, frame.sblimit); + find_sf_max (scalar, &frame, max_sc); + if (frame.actual_mode == MPG_MD_JOINT_STEREO) { + /* this way we calculate more mono than we need */ + /* but it is cheap */ + combine_LR_new (*sb_sample, *j_sample, frame.sblimit); + scalefactor_calc_new (j_sample, &j_scale, 1, frame.sblimit); + } +#else + scale_factor_calc (*sb_sample, scalar, nch, frame.sblimit); + pick_scale (scalar, &frame, max_sc); + if (frame.actual_mode == MPG_MD_JOINT_STEREO) { + /* this way we calculate more mono than we need */ + /* but it is cheap */ + combine_LR (*sb_sample, *j_sample, frame.sblimit); + scale_factor_calc (j_sample, &j_scale, 1, frame.sblimit); + } +#endif + + + + if ((glopts.quickmode == TRUE) && (++psycount % glopts.quickcount != 0)) { + /* We're using quick mode, so we're only calculating the model every + 'quickcount' frames. Otherwise, just copy the old ones across */ + for (int ch = 0; ch < nch; ch++) { + for (int sb = 0; sb < SBLIMIT; sb++) + smr[ch][sb] = smrdef[ch][sb]; + } + } else { + /* calculate the psymodel */ + switch (model) { + case -1: + psycho_n1 (smr, nch); + break; + case 0: /* Psy Model A */ + psycho_0 (smr, nch, scalar, (FLOAT) s_freq[header.version][header.sampling_frequency] * 1000); + break; + case 1: + psycho_1 (buffer, max_sc, smr, &frame); + break; + case 2: + for (int ch = 0; ch < nch; ch++) { + psycho_2 (&buffer[ch][0], &sam[ch][0], ch, &smr[ch][0], //snr32, + (FLOAT) s_freq[header.version][header.sampling_frequency] * + 1000, &glopts); + } + break; + case 3: + /* Modified psy model 1 */ + psycho_3 (buffer, max_sc, smr, &frame, &glopts); + break; + case 4: + /* Modified Psycho Model 2 */ + for (int ch = 0; ch < nch; ch++) { + psycho_4 (&buffer[ch][0], &sam[ch][0], ch, &smr[ch][0], // snr32, + (FLOAT) s_freq[header.version][header.sampling_frequency] * + 1000, &glopts); + } + break; + case 5: + /* Model 5 comparse model 1 and 3 */ + psycho_1 (buffer, max_sc, smr, &frame); + fprintf(stdout,"1 "); + smr_dump(smr,nch); + psycho_3 (buffer, max_sc, smr, &frame, &glopts); + fprintf(stdout,"3 "); + smr_dump(smr,nch); + break; + case 6: + /* Model 6 compares model 2 and 4 */ + for (int ch = 0; ch < nch; ch++) + psycho_2 (&buffer[ch][0], &sam[ch][0], ch, &smr[ch][0], //snr32, + (FLOAT) s_freq[header.version][header.sampling_frequency] * + 1000, &glopts); + fprintf(stdout,"2 "); + smr_dump(smr,nch); + for (int ch = 0; ch < nch; ch++) + psycho_4 (&buffer[ch][0], &sam[ch][0], ch, &smr[ch][0], // snr32, + (FLOAT) s_freq[header.version][header.sampling_frequency] * + 1000, &glopts); + fprintf(stdout,"4 "); + smr_dump(smr,nch); + break; + case 7: + fprintf(stdout,"Frame: %i\n",frameNum); + /* Dump the SMRs for all models */ + psycho_1 (buffer, max_sc, smr, &frame); + fprintf(stdout,"1"); + smr_dump(smr, nch); + psycho_3 (buffer, max_sc, smr, &frame, &glopts); + fprintf(stdout,"3"); + smr_dump(smr,nch); + for (int ch = 0; ch < nch; ch++) + psycho_2 (&buffer[ch][0], &sam[ch][0], ch, &smr[ch][0], //snr32, + (FLOAT) s_freq[header.version][header.sampling_frequency] * + 1000, &glopts); + fprintf(stdout,"2"); + smr_dump(smr,nch); + for (int ch = 0; ch < nch; ch++) + psycho_4 (&buffer[ch][0], &sam[ch][0], ch, &smr[ch][0], // snr32, + (FLOAT) s_freq[header.version][header.sampling_frequency] * + 1000, &glopts); + fprintf(stdout,"4"); + smr_dump(smr,nch); + break; + case 8: + /* Compare 0 and 4 */ + psycho_n1 (smr, nch); + fprintf(stdout,"0"); + smr_dump(smr,nch); + + for (int ch = 0; ch < nch; ch++) + psycho_4 (&buffer[ch][0], &sam[ch][0], ch, &smr[ch][0], // snr32, + (FLOAT) s_freq[header.version][header.sampling_frequency] * + 1000, &glopts); + fprintf(stdout,"4"); + smr_dump(smr,nch); + break; + default: + fprintf (stderr, "Invalid psy model specification: %i\n", model); + exit (0); + } + + if (glopts.quickmode == TRUE) + /* copy the smr values and reuse them later */ + for (int ch = 0; ch < nch; ch++) { + for (int sb = 0; sb < SBLIMIT; sb++) + smrdef[ch][sb] = smr[ch][sb]; + } + + if (glopts.verbosity > 4) + smr_dump(smr, nch); + + + + + } + +#ifdef NEWENCODE + sf_transmission_pattern (scalar, scfsi, &frame); + main_bit_allocation_new (smr, scfsi, bit_alloc, &adb, &frame, &glopts); + //main_bit_allocation (smr, scfsi, bit_alloc, &adb, &frame, &glopts); + + if (error_protection) + CRC_calc (&frame, bit_alloc, scfsi, &crc); + + write_header (&frame, &bs); + //encode_info (&frame, &bs); + if (error_protection) + putbits (&bs, crc, 16); + write_bit_alloc (bit_alloc, &frame, &bs); + //encode_bit_alloc (bit_alloc, &frame, &bs); + write_scalefactors(bit_alloc, scfsi, scalar, &frame, &bs); + //encode_scale (bit_alloc, scfsi, scalar, &frame, &bs); + subband_quantization_new (scalar, *sb_sample, j_scale, *j_sample, bit_alloc, + *subband, &frame); + //subband_quantization (scalar, *sb_sample, j_scale, *j_sample, bit_alloc, + // *subband, &frame); + write_samples_new(*subband, bit_alloc, &frame, &bs); + //sample_encoding (*subband, bit_alloc, &frame, &bs); +#else + transmission_pattern (scalar, scfsi, &frame); + main_bit_allocation (smr, scfsi, bit_alloc, &adb, &frame, &glopts); + if (error_protection) + CRC_calc (&frame, bit_alloc, scfsi, &crc); + encode_info (&frame, &bs); + if (error_protection) + encode_CRC (crc, &bs); + encode_bit_alloc (bit_alloc, &frame, &bs); + encode_scale (bit_alloc, scfsi, scalar, &frame, &bs); + subband_quantization (scalar, *sb_sample, j_scale, *j_sample, bit_alloc, + *subband, &frame); + sample_encoding (*subband, bit_alloc, &frame, &bs); +#endif + + + /* If not all the bits were used, write out a stack of zeros */ + for (int i = 0; i < adb; i++) { + put1bit (&bs, 0); + } + + + if (xpad_len) { + assert(xpad_len > 2); + + // insert available X-PAD + for (int i = header.dab_length - xpad_len; + i < header.dab_length - FPAD_LENGTH; + i++) { + putbits (&bs, xpad_data[i], 8); + } + } + + + for (int i = header.dab_extension - 1; i >= 0; i--) { + CRC_calcDAB (&frame, bit_alloc, scfsi, scalar, &crc, i); + /* this crc is for the previous frame in DAB mode */ + if (bs.buf_byte_idx + lg_frame < bs.buf_size) + bs.buf[bs.buf_byte_idx + lg_frame] = crc; + /* reserved 2 bytes for F-PAD in DAB mode */ + putbits (&bs, crc, 8); + } + + if (xpad_len) { + /* The F-PAD is also given us by mot-encoder */ + putbits (&bs, xpad_data[header.dab_length - 2], 8); + putbits (&bs, xpad_data[header.dab_length - 1], 8); + } + else { + putbits (&bs, 0, 16); // FPAD is all-zero + } +} + +int oldmain (int argc, char **argv) +{ + SBS *sb_sample; + JSBS *j_sample; +#ifdef REFERENCECODE + typedef double IN[2][HAN_SIZE]; + IN *win_que; +#endif + typedef unsigned int SUB[2][3][SCALE_BLOCK][SBLIMIT]; + SUB *subband; + + frame_info frame; + frame_header header; + char original_file_name[MAX_NAME_SIZE]; + char encoded_file_name[MAX_NAME_SIZE]; + short **win_buf; + static short buffer[2][1152]; + static unsigned int bit_alloc[2][SBLIMIT], scfsi[2][SBLIMIT]; + static unsigned int scalar[2][3][SBLIMIT], j_scale[3][SBLIMIT]; + static double smr[2][SBLIMIT], lgmin[2][SBLIMIT], max_sc[2][SBLIMIT]; + // FLOAT snr32[32]; + short sam[2][1344]; /* was [1056]; */ + int model, nch, error_protection; + static unsigned int crc; + int sb, ch, adb; + unsigned long frameBits, sentBits = 0; + unsigned long num_samples; + int lg_frame; + int i; + + /* Keep track of peaks */ + int peak_left = 0; + int peak_right = 0; + + char* mot_file = NULL; + char* icy_file = NULL; + + /* Used to keep the SNR values for the fast/quick psy models */ + static FLOAT smrdef[2][32]; + + static int psycount = 0; + extern int minimum; + + sb_sample = (SBS *) mem_alloc (sizeof (SBS), "sb_sample"); + j_sample = (JSBS *) mem_alloc (sizeof (JSBS), "j_sample"); +#ifdef REFERENCECODE + win_que = (IN *) mem_alloc (sizeof (IN), "Win_que"); +#endif + subband = (SUB *) mem_alloc (sizeof (SUB), "subband"); + win_buf = (short **) mem_alloc (sizeof (short *) * 2, "win_buf"); + + /* clear buffers */ + memset ((char *) buffer, 0, sizeof (buffer)); + memset ((char *) bit_alloc, 0, sizeof (bit_alloc)); + memset ((char *) scalar, 0, sizeof (scalar)); + memset ((char *) j_scale, 0, sizeof (j_scale)); + memset ((char *) scfsi, 0, sizeof (scfsi)); + memset ((char *) smr, 0, sizeof (smr)); + memset ((char *) lgmin, 0, sizeof (lgmin)); + memset ((char *) max_sc, 0, sizeof (max_sc)); + //memset ((char *) snr32, 0, sizeof (snr32)); + memset ((char *) sam, 0, sizeof (sam)); + + global_init (); + + header.extension = 0; + frame.header = &header; + frame.tab_num = -1; /* no table loaded */ + frame.alloc = NULL; + header.version = MPEG_AUDIO_ID; /* Default: MPEG-1 */ + + programName = argv[0]; + if (argc == 1) /* no command-line args */ + short_usage (); + else + parse_args (argc, argv, &frame, &model, &num_samples, original_file_name, + encoded_file_name, &mot_file, &icy_file); + print_config (&frame, &model, original_file_name, encoded_file_name); + + uint8_t* xpad_data = NULL; + if (mot_file) { + if (header.dab_length <= 0) { + fprintf(stderr, "Invalid XPAD length specified\n"); + return 1; + } + + int err = xpad_init(mot_file, header.dab_length + 1); + if (err == -1) { + fprintf(stderr, "XPAD reader initialisation failed\n"); + return 1; + } + + xpad_data = malloc(header.dab_length + 1); + } + + /* this will load the alloc tables and do some other stuff */ + hdr_to_frps (&frame); + nch = frame.nch; + error_protection = header.error_protection; + + unsigned long samps_read; + while ((samps_read = get_audio(&musicin, buffer, num_samples, nch, &header)) > 0) { + /* Check if we have new PAD data + */ + int xpad_len = 0; + if (mot_file) { + xpad_len = xpad_read_len(xpad_data, header.dab_length + 1); + + if (xpad_len == -1) { + fprintf(stderr, "Error reading XPAD data\n"); + xpad_len = 0; + } + else if (xpad_len == 0) { + // no PAD available + } + else if (xpad_len == header.dab_length + 1) { +//#define XPAD_DEBUG +#ifdef XPAD_DEBUG + fprintf(stderr, "XPAD:"); + for (i = 0; i < xpad_len; i++) + fprintf(stderr, " %02X", xpad_data[i]); + fprintf(stderr, "\n"); +#endif + // everything OK + xpad_len = xpad_data[header.dab_length]; + assert(xpad_len > 2); + } + else { + fprintf(stderr, "xpad length=%d\n", xpad_len); + abort(); + } + } + + unsigned long j; + for (j = 0; j < 1152; j++) { + peak_left = MAX(peak_left, buffer[0][j]); + } + for (j = 0; j < 1152; j++) { + peak_right = MAX(peak_right, buffer[1][j]); + } + + // We can always set the zmq peaks, even if the output is not + // used, it just writes some variables + zmqoutput_set_peaks(peak_left, peak_right); + + if (glopts.verbosity > 1) + if (++frameNum % 10 == 0) { + + fprintf(stderr, "[%4u", frameNum); + + if (mot_file) { + fprintf(stderr, " %s", + xpad_len > 0 ? "p" : " "); + } + + if (glopts.show_level) { + fprintf(stderr, " (%6d|%-6d) ", + peak_left, peak_right); + + fprintf(stderr, "] [%6s|%-6s]\r", + level(0, &peak_left), + level(1, &peak_right) ); + } + else { + fprintf(stderr, "]\r"); + } + } + + fflush(stderr); + win_buf[0] = &buffer[0][0]; + win_buf[1] = &buffer[1][0]; + + adb = available_bits (&header, &glopts); + lg_frame = adb / 8; + if (header.dab_extension) { + /* You must have one frame in memory if you are in DAB mode */ + /* in conformity of the norme ETS 300 401 http://www.etsi.org */ + /* see bitstream.c */ + if (frameNum == 1) + minimum = lg_frame + MINIMUM; + adb -= header.dab_extension * 8 + (xpad_len ? xpad_len : FPAD_LENGTH) * 8; + } + + { + int gr, bl, ch; + /* New polyphase filter + Combines windowing and filtering. Ricardo Feb'03 */ + for( gr = 0; gr < 3; gr++ ) + for ( bl = 0; bl < 12; bl++ ) + for ( ch = 0; ch < nch; ch++ ) + WindowFilterSubband( &buffer[ch][gr * 12 * 32 + 32 * bl], ch, + &(*sb_sample)[ch][gr][bl][0] ); + } + +#ifdef REFERENCECODE + { + /* Old code. left here for reference */ + int gr, bl, ch; + for (gr = 0; gr < 3; gr++) + for (bl = 0; bl < SCALE_BLOCK; bl++) + for (ch = 0; ch < nch; ch++) { + window_subband (&win_buf[ch], &(*win_que)[ch][0], ch); + filter_subband (&(*win_que)[ch][0], &(*sb_sample)[ch][gr][bl][0]); + } + } +#endif + + +#ifdef NEWENCODE + scalefactor_calc_new(*sb_sample, scalar, nch, frame.sblimit); + find_sf_max (scalar, &frame, max_sc); + if (frame.actual_mode == MPG_MD_JOINT_STEREO) { + /* this way we calculate more mono than we need */ + /* but it is cheap */ + combine_LR_new (*sb_sample, *j_sample, frame.sblimit); + scalefactor_calc_new (j_sample, &j_scale, 1, frame.sblimit); + } +#else + scale_factor_calc (*sb_sample, scalar, nch, frame.sblimit); + pick_scale (scalar, &frame, max_sc); + if (frame.actual_mode == MPG_MD_JOINT_STEREO) { + /* this way we calculate more mono than we need */ + /* but it is cheap */ + combine_LR (*sb_sample, *j_sample, frame.sblimit); + scale_factor_calc (j_sample, &j_scale, 1, frame.sblimit); + } +#endif + + + + if ((glopts.quickmode == TRUE) && (++psycount % glopts.quickcount != 0)) { + /* We're using quick mode, so we're only calculating the model every + 'quickcount' frames. Otherwise, just copy the old ones across */ + for (ch = 0; ch < nch; ch++) { + for (sb = 0; sb < SBLIMIT; sb++) + smr[ch][sb] = smrdef[ch][sb]; + } + } else { + /* calculate the psymodel */ + switch (model) { + case -1: + psycho_n1 (smr, nch); + break; + case 0: /* Psy Model A */ + psycho_0 (smr, nch, scalar, (FLOAT) s_freq[header.version][header.sampling_frequency] * 1000); + break; + case 1: + psycho_1 (buffer, max_sc, smr, &frame); + break; + case 2: + for (ch = 0; ch < nch; ch++) { + psycho_2 (&buffer[ch][0], &sam[ch][0], ch, &smr[ch][0], //snr32, + (FLOAT) s_freq[header.version][header.sampling_frequency] * + 1000, &glopts); + } + break; + case 3: + /* Modified psy model 1 */ + psycho_3 (buffer, max_sc, smr, &frame, &glopts); + break; + case 4: + /* Modified Psycho Model 2 */ + for (ch = 0; ch < nch; ch++) { + psycho_4 (&buffer[ch][0], &sam[ch][0], ch, &smr[ch][0], // snr32, + (FLOAT) s_freq[header.version][header.sampling_frequency] * + 1000, &glopts); + } + break; + case 5: + /* Model 5 comparse model 1 and 3 */ + psycho_1 (buffer, max_sc, smr, &frame); + fprintf(stdout,"1 "); + smr_dump(smr,nch); + psycho_3 (buffer, max_sc, smr, &frame, &glopts); + fprintf(stdout,"3 "); + smr_dump(smr,nch); + break; + case 6: + /* Model 6 compares model 2 and 4 */ + for (ch = 0; ch < nch; ch++) + psycho_2 (&buffer[ch][0], &sam[ch][0], ch, &smr[ch][0], //snr32, + (FLOAT) s_freq[header.version][header.sampling_frequency] * + 1000, &glopts); + fprintf(stdout,"2 "); + smr_dump(smr,nch); + for (ch = 0; ch < nch; ch++) + psycho_4 (&buffer[ch][0], &sam[ch][0], ch, &smr[ch][0], // snr32, + (FLOAT) s_freq[header.version][header.sampling_frequency] * + 1000, &glopts); + fprintf(stdout,"4 "); + smr_dump(smr,nch); + break; + case 7: + fprintf(stdout,"Frame: %i\n",frameNum); + /* Dump the SMRs for all models */ + psycho_1 (buffer, max_sc, smr, &frame); + fprintf(stdout,"1"); + smr_dump(smr, nch); + psycho_3 (buffer, max_sc, smr, &frame, &glopts); + fprintf(stdout,"3"); + smr_dump(smr,nch); + for (ch = 0; ch < nch; ch++) + psycho_2 (&buffer[ch][0], &sam[ch][0], ch, &smr[ch][0], //snr32, + (FLOAT) s_freq[header.version][header.sampling_frequency] * + 1000, &glopts); + fprintf(stdout,"2"); + smr_dump(smr,nch); + for (ch = 0; ch < nch; ch++) + psycho_4 (&buffer[ch][0], &sam[ch][0], ch, &smr[ch][0], // snr32, + (FLOAT) s_freq[header.version][header.sampling_frequency] * + 1000, &glopts); + fprintf(stdout,"4"); + smr_dump(smr,nch); + break; + case 8: + /* Compare 0 and 4 */ + psycho_n1 (smr, nch); + fprintf(stdout,"0"); + smr_dump(smr,nch); + + for (ch = 0; ch < nch; ch++) + psycho_4 (&buffer[ch][0], &sam[ch][0], ch, &smr[ch][0], // snr32, + (FLOAT) s_freq[header.version][header.sampling_frequency] * + 1000, &glopts); + fprintf(stdout,"4"); + smr_dump(smr,nch); + break; + default: + fprintf (stderr, "Invalid psy model specification: %i\n", model); + exit (0); + } + + if (glopts.quickmode == TRUE) + /* copy the smr values and reuse them later */ + for (ch = 0; ch < nch; ch++) { + for (sb = 0; sb < SBLIMIT; sb++) + smrdef[ch][sb] = smr[ch][sb]; + } + + if (glopts.verbosity > 4) + smr_dump(smr, nch); + + + + + } + +#ifdef NEWENCODE + sf_transmission_pattern (scalar, scfsi, &frame); + main_bit_allocation_new (smr, scfsi, bit_alloc, &adb, &frame, &glopts); + //main_bit_allocation (smr, scfsi, bit_alloc, &adb, &frame, &glopts); + + if (error_protection) + CRC_calc (&frame, bit_alloc, scfsi, &crc); + + write_header (&frame, &bs); + //encode_info (&frame, &bs); + if (error_protection) + putbits (&bs, crc, 16); + write_bit_alloc (bit_alloc, &frame, &bs); + //encode_bit_alloc (bit_alloc, &frame, &bs); + write_scalefactors(bit_alloc, scfsi, scalar, &frame, &bs); + //encode_scale (bit_alloc, scfsi, scalar, &frame, &bs); + subband_quantization_new (scalar, *sb_sample, j_scale, *j_sample, bit_alloc, + *subband, &frame); + //subband_quantization (scalar, *sb_sample, j_scale, *j_sample, bit_alloc, + // *subband, &frame); + write_samples_new(*subband, bit_alloc, &frame, &bs); + //sample_encoding (*subband, bit_alloc, &frame, &bs); +#else + transmission_pattern (scalar, scfsi, &frame); + main_bit_allocation (smr, scfsi, bit_alloc, &adb, &frame, &glopts); + if (error_protection) + CRC_calc (&frame, bit_alloc, scfsi, &crc); + encode_info (&frame, &bs); + if (error_protection) + encode_CRC (crc, &bs); + encode_bit_alloc (bit_alloc, &frame, &bs); + encode_scale (bit_alloc, scfsi, scalar, &frame, &bs); + subband_quantization (scalar, *sb_sample, j_scale, *j_sample, bit_alloc, + *subband, &frame); + sample_encoding (*subband, bit_alloc, &frame, &bs); +#endif + + + /* If not all the bits were used, write out a stack of zeros */ + for (i = 0; i < adb; i++) + put1bit (&bs, 0); + + + if (xpad_len) { + assert(xpad_len > 2); + + // insert available X-PAD + for (i = header.dab_length - xpad_len; i < header.dab_length - FPAD_LENGTH; i++) + putbits (&bs, xpad_data[i], 8); + } + + + for (i = header.dab_extension - 1; i >= 0; i--) { + CRC_calcDAB (&frame, bit_alloc, scfsi, scalar, &crc, i); + /* this crc is for the previous frame in DAB mode */ + if (bs.buf_byte_idx + lg_frame < bs.buf_size) + bs.buf[bs.buf_byte_idx + lg_frame] = crc; + /* reserved 2 bytes for F-PAD in DAB mode */ + putbits (&bs, crc, 8); + } + + if (xpad_len) { + /* The F-PAD is also given us by mot-encoder */ + putbits (&bs, xpad_data[header.dab_length - 2], 8); + putbits (&bs, xpad_data[header.dab_length - 1], 8); + } + else { + putbits (&bs, 0, 16); // FPAD is all-zero + } + +#if defined(VLC_INPUT) + if (glopts.input_select == INPUT_SELECT_VLC) { + vlc_in_write_icy(); + } +#endif + + + frameBits = sstell (&bs) - sentBits; + + if (frameBits % 8) { /* a program failure */ + fprintf (stderr, "Sent %ld bits = %ld slots plus %ld\n", frameBits, + frameBits / 8, frameBits % 8); + fprintf (stderr, "If you are reading this, the program is broken\n"); + fprintf (stderr, "Please report a bug.\n"); + exit(1); + } + + sentBits += frameBits; + + // Reset peak measurement + peak_left = 0; + peak_right = 0; + } + + fprintf(stdout, "Main loop has quit with samps_read = %zu\n", samps_read); + + close_bit_stream_w (&bs); + + if ((glopts.verbosity > 1) && (glopts.vbr == TRUE)) { + int i; +#ifdef NEWENCODE + extern int vbrstats_new[15]; +#else + extern int vbrstats[15]; +#endif + fprintf (stdout, "VBR stats:\n"); + for (i = 1; i < 15; i++) + fprintf (stdout, "%4i ", bitrate[header.version][i]); + fprintf (stdout, "\n"); + for (i = 1; i < 15; i++) +#ifdef NEWENCODE + fprintf (stdout,"%4i ",vbrstats_new[i]); +#else + fprintf (stdout, "%4i ", vbrstats[i]); +#endif + fprintf (stdout, "\n"); + } + + fprintf (stderr, + "Avg slots/frame = %.3f; b/smp = %.2f; bitrate = %.3f kbps\n", + (FLOAT) sentBits / (frameNum * 8), + (FLOAT) sentBits / (frameNum * 1152), + (FLOAT) sentBits / (frameNum * 1152) * + s_freq[header.version][header.sampling_frequency]); + + if (glopts.input_select == INPUT_SELECT_WAV) { + if ( fclose (musicin.wav_input) != 0) { + fprintf (stderr, "Could not close \"%s\".\n", original_file_name); + exit (2); + } + } + + fprintf (stderr, "\nDone\n"); + exit (0); +} + +/************************************************************************ + * + * print_config + * + * PURPOSE: Prints the encoding parameters used + * + ************************************************************************/ + +void print_config (frame_info * frame, int *psy, char *inPath, + char *outPath) +{ + frame_header *header = frame->header; + + if (glopts.verbosity == 0) + return; + + fprintf (stderr, "--------------------------------------------\n"); + if (glopts.input_select == INPUT_SELECT_JACK) { + fprintf (stderr, "Input JACK\n"); + fprintf (stderr, " name %s\n", musicin.jack_name); + } + else if (glopts.input_select == INPUT_SELECT_WAV) { + fprintf (stderr, "Input File : '%s' %.1f kHz\n", + (strcmp (inPath, "-") ? inPath : "stdin"), + s_freq[header->version][header->sampling_frequency]); + } + else if (glopts.input_select == INPUT_SELECT_VLC) { + fprintf (stderr, "Input VLC\n"); + fprintf (stderr, " URI %s\n", inPath); + } + + fprintf (stderr, "Output File: '%s'\n", + (strcmp (outPath, "-") ? outPath : "stdout")); + fprintf (stderr, "%d kbps ", bitrate[header->version][header->bitrate_index]); + fprintf (stderr, "%s ", version_names[header->version]); + if (header->mode != MPG_MD_JOINT_STEREO) + fprintf (stderr, "Layer II %s Psycho model=%d (Mode_Extension=%d)\n", + mode_names[header->mode], *psy, header->mode_ext); + else + fprintf (stderr, "Layer II %s Psy model %d \n", mode_names[header->mode], + *psy); + + fprintf (stderr, "[De-emph:%s\tCopyright:%s\tOriginal:%s\tCRC:%s]\n", + ((header->emphasis) ? "On" : "Off"), + ((header->copyright) ? "Yes" : "No"), + ((header->original) ? "Yes" : "No"), + ((header->error_protection) ? "On" : "Off")); + + fprintf (stderr, "[Padding:%s\tByte-swap:%s\tChanswap:%s\tDAB:%s]\n", + ((glopts.usepadbit) ? "Normal" : "Off"), + ((glopts.byteswap) ? "On" : "Off"), + ((glopts.channelswap) ? "On" : "Off"), + ((glopts.dab) ? "On" : "Off")); + + if (glopts.vbr == TRUE) + fprintf (stderr, "VBR Enabled. Using MNR boost of %f\n", glopts.vbrlevel); + fprintf(stderr,"ATH adjustment %f\n",glopts.athlevel); + + fprintf (stderr, "--------------------------------------------\n"); +} + + +/************************************************************************ + * + * usage + * + * PURPOSE: Writes command line syntax to the file specified by #stderr# + * + ************************************************************************/ + +void usage (void) +{ /* print syntax & exit */ + /* FIXME: maybe have an option to display better definitions of help codes, and + long equivalents of the flags */ + fprintf (stdout, "\nToolame-DAB version %s\n (http://opendigitalradio.org)\n", + toolameversion); + fprintf (stdout, "MPEG Audio Layer II encoder for DAB\n\n"); + fprintf (stdout, "usage: \n"); + fprintf (stdout, "\t%s [options] (<infile>|-j <jackname>|-V <libvlc url>) <output>\n\n", programName); + + fprintf (stdout, "Options:\n"); + fprintf (stdout, "Input\n"); + fprintf (stdout, "\t-s sfrq input smpl rate in kHz (dflt %4.1f)\n", + DFLT_SFQ); + fprintf (stdout, "\t-a downmix from stereo to mono\n"); + fprintf (stdout, "\t-x force byte-swapping of input\n"); + fprintf (stdout, "\t-g swap channels of input file\n"); + +#if defined(JACK_INPUT) + fprintf (stdout, "\t-j use jack input\n"); +#else + fprintf (stdout, "\t-j DISABLED: JACK input not compiled in\n"); +#endif + +#if defined(VLC_INPUT) + fprintf (stdout, "\t-V use libvlc input\n"); +#else + fprintf (stdout, "\t-V DISABLED: libvlc input not compiled in\n"); +#endif + + fprintf (stdout, "\t-W file when using libvlc input, write the ICY-Text to file\n"); + fprintf (stdout, "\t-L enable audio level display\n"); + fprintf (stdout, "Output\n"); + fprintf (stdout, "\t-m mode channel mode : s/d/j/m (dflt %4c)\n", + DFLT_MOD); + fprintf (stdout, "\t-y psy psychoacoustic model 0/1/2/3 (dflt %4u)\n", + DFLT_PSY); + fprintf (stdout, "\t-b br total bitrate in kbps (dflt 192)\n"); + fprintf (stdout, "\t-v lev vbr mode\n"); + fprintf (stdout, "\t-l lev ATH level (dflt 0)\n"); + fprintf (stdout, "Operation\n"); + // fprintf (stdout, "\t-f fast mode (turns off psy model)\n"); + // deprecate the -f switch. use "-y 0" instead. + fprintf (stdout, + "\t-q num quick mode. only calculate psy model every num frames\n"); + fprintf (stdout, "Misc\n"); + fprintf (stdout, "\t-d emp de-emphasis n/5/c (dflt %4c)\n", + DFLT_EMP); + fprintf (stdout, "\t-c mark as copyright\n"); + fprintf (stdout, "\t-o mark as original\n"); + fprintf (stdout, "\t-e add error protection\n"); + fprintf (stdout, "\t-r force padding bit/frame off\n"); + fprintf (stdout, "\t-p len " + "enable PAD, and read len bytes of X-PAD data per frame\n"); + fprintf (stdout, "\t-P file " + "read X-PAD data from mot-encoder from the specified file\n"); + fprintf (stdout, "\t-t talkativity 0=no messages (dflt 2)\n"); + fprintf (stdout, "Files\n"); + fprintf (stdout, + "\tinput input sound file. (WAV,AIFF,PCM or use '/dev/stdin')\n"); + fprintf (stdout, "\toutput output bit stream of encoded audio\n"); + fprintf (stdout, "\t prefix with tcp:// to use a ZMQ output\n"); + fprintf (stdout, "\t Several ZMQ destinations can be given,\n"); + fprintf (stdout, "\t separated by semicolons.\n"); + fprintf (stdout, + "\n\tAllowable bitrates for 16, 22.05 and 24kHz sample input\n"); + fprintf (stdout, + "\t8, 16, 24, 32, 40, 48, 56, 64, 80, 96, 112, 128, 144, 160\n"); + fprintf (stdout, + "\n\tAllowable bitrates for 32, 44.1 and 48kHz sample input\n"); + fprintf (stdout, + "\t32, 48, 56, 64, 80, 96, 112, 128, 160, 192, 224, 256, 320, 384\n"); + exit (1); +} + +/********************************************* + * void short_usage(void) + ********************************************/ +void short_usage (void) +{ + /* print a bit of info about the program */ + fprintf (stderr, "Toolame-DAB version %s\n (http://opendigitalradio.org)\n", + toolameversion); + fprintf (stderr, "MPEG Audio Layer II encoder for DAB\n\n"); +#if defined(JACK_INPUT) && defined(VLC_INPUT) + fprintf (stderr, "USAGE: %s [options] (<infile>|-j <jackname>|-V <libvlc url>) [output]\n\n", programName); +#elif defined(JACK_INPUT) + fprintf (stderr, "USAGE: %s [options] (<infile>|-j <jackname>) [output]\n\n", programName); + fprintf (stderr, "VLC input not compiled in\n"); +#elif defined(VLC_INPUT) + fprintf (stderr, "USAGE: %s [options] (<infile>|-V <libvlc url>) [output]\n\n", programName); + fprintf (stderr, "JACK input not compiled in\n"); +#else + fprintf (stderr, "USAGE: %s [options] <infile> [output]\n\n", programName); + fprintf (stderr, "Neither JACK nor libVLC input compiled in\n"); +#endif + fprintf (stderr, "Try \"%s -h\" for more information.\n", programName); + exit (0); +} + +/************************************************************************ + * + * parse_args + * + * PURPOSE: Sets encoding parameters to the specifications of the + * command line. Default settings are used for parameters + * not specified in the command line. + * + * SEMANTICS: The command line is parsed according to the following + * syntax: + * + * -j turns on JACK input + * -V turns on libVLC input + * -L turns on audio level display + * -m is followed by the mode + * -y is followed by the psychoacoustic model number + * -s is followed by the sampling rate + * -b is followed by the total bitrate, irrespective of the mode + * -d is followed by the emphasis flag + * -c is followed by the copyright/no_copyright flag + * -o is followed by the original/not_original flag + * -e is followed by the error_protection on/off flag + * -f turns off psy model (fast mode) + * -q <i> only calculate psy model every ith frame + * -a downmix from stereo to mono + * -r turn off padding bits in frames. + * -x force byte swapping of input + * -g swap the channels on an input file + * -t talkativity. how verbose should the program be. 0 = no messages. + * + * If the input file is in AIFF format, the sampling frequency is read + * from the AIFF header. + * + * The input and output filenames are read into #inpath# and #outpath#. + * + ************************************************************************/ + +void parse_args (int argc, char **argv, frame_info * frame, int *psy, + unsigned long *num_samples, char inPath[MAX_NAME_SIZE], + char outPath[MAX_NAME_SIZE], char **mot_file, char **icy_file) +{ + FLOAT srate; + int brate; + frame_header *header = frame->header; + int err = 0, i = 0; + long samplerate = 0; + + /* preset defaults */ + inPath[0] = '\0'; + outPath[0] = '\0'; + header->lay = DFLT_LAY; + switch (DFLT_MOD) { + case 's': + header->mode = MPG_MD_STEREO; + header->mode_ext = 0; + break; + case 'd': + header->mode = MPG_MD_DUAL_CHANNEL; + header->mode_ext = 0; + break; + /* in j-stereo mode, no default header->mode_ext was defined, gave error.. + now default = 2 added by MFC 14 Dec 1999. */ + case 'j': + header->mode = MPG_MD_JOINT_STEREO; + header->mode_ext = 2; + break; + case 'm': + header->mode = MPG_MD_MONO; + header->mode_ext = 0; + break; + default: + fprintf (stderr, "%s: Bad mode dflt %c\n", programName, DFLT_MOD); + abort (); + } + *psy = DFLT_PSY; + if ((header->sampling_frequency = + SmpFrqIndex ((long) (1000 * DFLT_SFQ), &header->version)) < 0) { + fprintf (stderr, "%s: bad sfrq default %.2f\n", programName, DFLT_SFQ); + abort (); + } + header->bitrate_index = 14; + brate = 0; + switch (DFLT_EMP) { + case 'n': + header->emphasis = 0; + break; + case '5': + header->emphasis = 1; + break; + case 'c': + header->emphasis = 3; + break; + default: + fprintf (stderr, "%s: Bad emph dflt %c\n", programName, DFLT_EMP); + abort (); + } + header->copyright = 0; + header->original = 0; + header->error_protection = FALSE; + header->dab_extension = 0; + + glopts.input_select = INPUT_SELECT_WAV; + + /* process args */ + while (++i < argc && err == 0) { + char c, *token, *arg, *nextArg; + int argUsed; + + token = argv[i]; + if (*token++ == '-') { + if (i + 1 < argc) + nextArg = argv[i + 1]; + else + nextArg = ""; + argUsed = 0; + if (!*token) { + /* The user wants to use stdin and/or stdout. */ + if (inPath[0] == '\0') + strncpy (inPath, argv[i], MAX_NAME_SIZE); + else if (outPath[0] == '\0') + strncpy (outPath, argv[i], MAX_NAME_SIZE); + } + while ((c = *token++)) { + if (*token /* NumericQ(token) */ ) + arg = token; + else + arg = nextArg; + switch (c) { + case 'm': + argUsed = 1; + if (*arg == 's') { + header->mode = MPG_MD_STEREO; + header->mode_ext = 0; + } else if (*arg == 'd') { + header->mode = MPG_MD_DUAL_CHANNEL; + header->mode_ext = 0; + } else if (*arg == 'j') { + header->mode = MPG_MD_JOINT_STEREO; + } else if (*arg == 'm') { + header->mode = MPG_MD_MONO; + header->mode_ext = 0; + } else { + fprintf (stderr, "%s: -m mode must be s/d/j/m not %s\n", + programName, arg); + err = 1; + } + break; + case 'y': + *psy = atoi (arg); + argUsed = 1; + break; + + case 'L': + glopts.show_level = 1; + break; + + case 's': + argUsed = 1; + srate = atof (arg); + /* samplerate = rint( 1000.0 * srate ); $A */ + samplerate = (long) ((1000.0 * srate) + 0.5); + if ((header->sampling_frequency = + SmpFrqIndex ((long) samplerate, &header->version)) < 0) + err = 1; + break; + + case 'j': + glopts.input_select = INPUT_SELECT_JACK; + break; + + case 'b': + argUsed = 1; + brate = atoi (arg); + break; + case 'd': + argUsed = 1; + if (*arg == 'n') + header->emphasis = 0; + else if (*arg == '5') + header->emphasis = 1; + else if (*arg == 'c') + header->emphasis = 3; + else { + fprintf (stderr, "%s: -d emp must be n/5/c not %s\n", programName, + arg); + err = 1; + } + break; + case 'P': + argUsed = 1; + *mot_file = arg; + break; + case 'p': + argUsed = 1; + header->dab_length = atoi(arg); + break; + case 'c': + header->copyright = 1; + break; + case 'o': + header->original = 1; + break; + case 'e': + header->error_protection = TRUE; + break; + case 'r': + glopts.usepadbit = FALSE; + header->padding = 0; + break; + case 'q': + argUsed = 1; + glopts.quickmode = TRUE; + glopts.usepsy = TRUE; + glopts.quickcount = atoi (arg); + if (glopts.quickcount == 0) { + /* just don't use psy model */ + glopts.usepsy = FALSE; + glopts.quickcount = FALSE; + } + break; + case 'a': + glopts.downmix = TRUE; + header->mode = MPG_MD_MONO; + header->mode_ext = 0; + break; + case 'x': + glopts.byteswap = TRUE; + break; + case 'v': + argUsed = 1; + glopts.vbr = TRUE; + glopts.vbrlevel = atof (arg); + glopts.usepadbit = FALSE; /* don't use padding for VBR */ + header->padding = 0; + /* MFC Feb 2003: in VBR mode, joint stereo doesn't make + any sense at the moment, as there are no noisy subbands + according to bits_for_nonoise in vbr mode */ + header->mode = MPG_MD_STEREO; /* force stereo mode */ + header->mode_ext = 0; + break; + case 'V': + glopts.input_select = INPUT_SELECT_VLC; + break; + case 'W': + argUsed = 1; + *icy_file = arg; + break; + case 'l': + argUsed = 1; + glopts.athlevel = atof(arg); + break; + case 'h': + usage (); + break; + case 'g': + glopts.channelswap = TRUE; + break; + case 't': + argUsed = 1; + glopts.verbosity = atoi (arg); + break; + default: + fprintf (stderr, "%s: unrec option %c\n", programName, c); + err = 1; + break; + } + if (argUsed) { + if (arg == token) + token = ""; /* no more from token */ + else + ++i; /* skip arg we used */ + arg = ""; + argUsed = 0; + } + } + } else { + if (inPath[0] == '\0') + strcpy (inPath, argv[i]); + else if (outPath[0] == '\0') + strcpy (outPath, argv[i]); + else { + fprintf (stderr, "%s: excess arg %s\n", programName, argv[i]); + err = 1; + } + } + } + + /* Always enable DAB mode */ + header->error_protection = TRUE; + header->dab_extension = 4; + header->padding = 0; + glopts.dab = TRUE; + + if (err) + usage (); /* If err has occured, then call usage() */ + + if (glopts.input_select != INPUT_SELECT_JACK && inPath[0] == '\0') + usage (); /* If not in jack-mode and no file specified, then call usage() */ + + if (outPath[0] == '\0') { + /* replace old extension with new one, 1992-08-19, 1995-06-12 shn */ + new_ext (inPath, DFLT_EXT, outPath); + } + + if (glopts.input_select == INPUT_SELECT_JACK) { +#if defined(JACK_INPUT) + musicin.jack_name = inPath; + *num_samples = MAX_U_32_NUM; + + setup_jack(header, musicin.jack_name); +#else + fprintf(stderr, "JACK input not compiled in\n"); + exit(1); +#endif + } + else if (glopts.input_select == INPUT_SELECT_WAV) { + if (!strcmp (inPath, "-")) { + musicin.wav_input = stdin; /* read from stdin */ + *num_samples = MAX_U_32_NUM; + } else { + if ((musicin.wav_input = fopen (inPath, "rb")) == NULL) { + fprintf (stderr, "Could not find \"%s\".\n", inPath); + exit (1); + } + parse_input_file (musicin.wav_input, inPath, header, num_samples); + } + } + else if (glopts.input_select == INPUT_SELECT_VLC) { + if (samplerate == 0) { + fprintf (stderr, "Samplerate not specified\n"); + exit (1); + } + *num_samples = MAX_U_32_NUM; + int channels = (header->mode == MPG_MD_MONO) ? 1 : 2; +#if defined(VLC_INPUT) + if (vlc_in_prepare(glopts.verbosity, samplerate, inPath, channels, *icy_file) != 0) { + fprintf(stderr, "VLC initialisation failed\n"); + exit(1); + } +#else + fprintf(stderr, "VLC input not compiled in\n"); + exit(1); +#endif + } + else { + fprintf(stderr, "INVALID INPUT\n"); + exit(1); + } + + + /* check for a valid bitrate */ + if (brate == 0) + brate = bitrate[header->version][10]; + + /* Check to see we have a sane value for the bitrate for this version */ + if ((header->bitrate_index = BitrateIndex (brate, header->version)) < 0) + err = 1; + + if (header->dab_extension) { + /* in 48 kHz (= MPEG-1) */ + /* if the bit rate per channel is less then 56 kbit/s, we have 2 scf-crc */ + /* else we have 4 scf-crc */ + /* in 24 kHz (= MPEG-2), we have 4 scf-crc */ + if (header->version == MPEG_AUDIO_ID && (brate / (header->mode == MPG_MD_MONO ? 1 : 2) < 56)) + header->dab_extension = 2; + } + + bs.zmq_framesize = 3 * brate; + + /* All options are hunky dory, open the input audio file and + return to the main drag */ + open_bit_stream_w (&bs, outPath, BUFFER_SIZE); +} + + +void smr_dump(double smr[2][SBLIMIT], int nch) { + int ch, sb; + + fprintf(stdout,"SMR:"); + for (ch = 0;ch<nch; ch++) { + if (ch==1) + fprintf(stdout," "); + for (sb=0;sb<SBLIMIT;sb++) + fprintf(stdout,"%3.0f ",smr[ch][sb]); + fprintf(stdout,"\n"); + } +} + |