/* * aplay.c - plays and records * * CREATIVE LABS VOICE-files * Microsoft WAVE-files * SPARC AUDIO .AU-files * Raw Data * * Copyright (c) by Jaroslav Kysela * Based on vplay program by Michael Beck * * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. * */ #include #include #include #include #include #include #include #include #include #include #include "aconfig.h" #include "formats.h" #include "version.h" #define DEFAULT_SPEED 8000 #define FORMAT_DEFAULT -1 #define FORMAT_RAW 0 #define FORMAT_VOC 1 #define FORMAT_WAVE 2 #define FORMAT_AU 3 /* global data */ char *command; snd_pcm_t *pcm_handle; struct snd_pcm_channel_info cinfo; snd_pcm_format_t rformat, format; int timelimit = 0; int quiet_mode = 0; int verbose_mode = 0; int format_change = 0; int active_format = FORMAT_DEFAULT; int mode = SND_PCM_MODE_BLOCK; int direction = SND_PCM_OPEN_PLAYBACK; int channel = SND_PCM_CHANNEL_PLAYBACK; int mmap_flag = 0; int frag = 0; int frags = 0; char *audiobuf = NULL; snd_pcm_mmap_control_t *mmap_control = NULL; char *mmap_data = NULL; long mmap_size = 0; int buffer_size = -1; char silence = 0; int count; int vocmajor, vocminor; /* functions */ int (*fcn_info)(snd_pcm_t *handle, snd_pcm_channel_info_t *info); int (*fcn_params)(snd_pcm_t *handle, snd_pcm_channel_params_t *params); int (*fcn_setup)(snd_pcm_t *handle, snd_pcm_channel_setup_t *setup); int (*fcn_status)(snd_pcm_t *handle, snd_pcm_channel_status_t *status); int (*fcn_flush)(snd_pcm_t *handle, int channel); ssize_t (*fcn_write)(snd_pcm_t *handle, const void *buffer, size_t size); ssize_t (*fcn_read)(snd_pcm_t *handle, void *buffer, size_t size); /* needed prototypes */ static void playback(char *filename); static void capture(char *filename); static void begin_voc(int fd, u_long count); static void end_voc(int fd); static void begin_wave(int fd, u_long count); static void end_wave(int fd); static void begin_au(int fd, u_long count); struct fmt_capture { void (*start) (int fd, u_long count); void (*end) (int fd); char *what; } fmt_rec_table[] = { { NULL, end_wave, "raw data" }, { begin_voc, end_voc, "VOC" }, { begin_wave, end_wave, "WAVE" }, { begin_au, end_wave, "Sparc Audio" } }; static char *get_format(int format) { static char *formats[] = { "Signed 8-bit", "Unsigned 8-bit", "Signed 16-bit Little Endian", "Signed 16-bit Big Endian", "Unsigned 16-bit Little Endian", "Unsigned 16-bit Big Endian", "Signed 24-bit Little Endian", "Signed 24-bit Big Endian", "Unsigned 24-bit Little Endian", "Unsigned 24-bit Big Endian", "Signed 32-bit Little Endian", "Signed 32-bit Big Endian", "Unsigned 32-bit Little Endian", "Unsigned 32-bit Big Endian", "Float Little Endian", "Float Big Endian", "Float64 Little Endian", "Float64 Big Endian", "IEC-958 Little Endian", "IEC-958 Big Endian", "Mu-Law", "A-Law", "Ima-ADPCM", "MPEG", "GSM" }; if (format < 0 || format > SND_PCM_SFMT_GSM) return "Unknown"; return formats[format]; } static void check_new_format(snd_pcm_format_t * format) { if (cinfo.min_rate > format->rate || cinfo.max_rate < format->rate) { fprintf(stderr, "%s: unsupported rate %iHz (valid range is %iHz-%iHz)\n", command, format->rate, cinfo.min_rate, cinfo.max_rate); exit(1); } if (!(cinfo.formats & (1 << format->format))) { fprintf(stderr, "%s: requested format %s isn't supported with hardware\n", command, get_format(format->format)); exit(1); } } static void usage(char *command) { fprintf(stderr, "Usage: %s [switches] [filename] ...\n" "Available switches:\n" "\n" " -h,--help help\n" " -V,--version print current version\n" " -l list all soundcards and digital audio devices\n" " -c select card # or card id (0-%i), defaults to 0\n" " -d select device #, defaults to 0\n" " -q quiet mode\n" " -v file format Voc\n" " -u file format Sparc Audio (.au)\n" " -w file format Wave\n" " -r file format Raw\n" " -S stereo\n" " -t timelimit (seconds)\n" " -s speed (Hz)\n" " -b sample size (8,16 bits)\n" " -m set CD-ROM quality (44100Hz,stereo,16-bit linear)\n" " -M set DAT quality (48000Hz,stereo,16-bit linear)\n" " -p compression type (alaw, ulaw, adpcm)\n" " -e stream mode\n" " -E mmap mode\n" ,command, snd_cards()-1); } static void device_list(void) { snd_ctl_t *handle; int card, err, dev, idx; unsigned int mask; struct snd_ctl_hw_info info; snd_pcm_info_t pcminfo; snd_pcm_channel_info_t chninfo; mask = snd_cards_mask(); if (!mask) { printf("%s: no soundcards found...\n", command); return; } for (card = 0; card < SND_CARDS; card++) { if (!(mask & (1 << card))) continue; if ((err = snd_ctl_open(&handle, card)) < 0) { printf("Error: control open (%i): %s\n", card, snd_strerror(err)); continue; } if ((err = snd_ctl_hw_info(handle, &info)) < 0) { printf("Error: control hardware info (%i): %s\n", card, snd_strerror(err)); snd_ctl_close(handle); continue; } for (dev = 0; dev < info.pcmdevs; dev++) { if ((err = snd_ctl_pcm_info(handle, dev, &pcminfo)) < 0) { printf("Error: control digital audio info (%i): %s\n", card, snd_strerror(err)); continue; } printf("%s: %i [%s] / #%i: %s\n", info.name, card + 1, info.id, dev, pcminfo.name); printf(" Directions: %s%s%s\n", pcminfo.flags & SND_PCM_INFO_PLAYBACK ? "playback " : "", pcminfo.flags & SND_PCM_INFO_CAPTURE ? "capture " : "", pcminfo.flags & SND_PCM_INFO_DUPLEX ? "duplex " : ""); printf(" Playback subdevices: %i\n", pcminfo.playback + 1); printf(" Capture subdevices: %i\n", pcminfo.capture + 1); if (pcminfo.flags & SND_PCM_INFO_PLAYBACK) { for (idx = 0; idx <= pcminfo.playback; idx++) { memset(&chninfo, 0, sizeof(chninfo)); chninfo.channel = SND_PCM_CHANNEL_PLAYBACK; if ((err = snd_ctl_pcm_channel_info(handle, dev, idx, &chninfo)) < 0) { printf("Error: control digital audio playback info (%i): %s\n", card, snd_strerror(err)); } else { printf(" Playback subdevice #%i: %s\n", idx, chninfo.subname); } } } if (pcminfo.flags & SND_PCM_INFO_CAPTURE) { for (idx = 0; idx <= pcminfo.capture; idx++) { memset(&chninfo, 0, sizeof(chninfo)); chninfo.channel = SND_PCM_CHANNEL_CAPTURE; if ((err = snd_ctl_pcm_channel_info(handle, dev, 0, &chninfo)) < 0) { printf("Error: control digital audio capture info (%i): %s\n", card, snd_strerror(err)); } else { printf(" Capture subdevice #%i: %s\n", idx, chninfo.subname); } } } } snd_ctl_close(handle); } } static void version(void) { fprintf(stderr, "%s: version " SND_UTIL_VERSION_STR " by Jaroslav Kysela \n", command); } int main(int argc, char *argv[]) { int card, dev, tmp, err, c; card = 0; dev = 0; command = argv[0]; active_format = FORMAT_DEFAULT; if (strstr(argv[0], "arecord")) { direction = SND_PCM_OPEN_CAPTURE; channel = SND_PCM_CHANNEL_CAPTURE; active_format = FORMAT_WAVE; command = "Arecord"; } else if (strstr(argv[0], "aplay")) { direction = SND_PCM_OPEN_PLAYBACK; channel = SND_PCM_CHANNEL_PLAYBACK; command = "Aplay"; } else { fprintf(stderr, "Error: command should be named either arecord or aplay\n"); return 1; } buffer_size = -1; memset(&rformat, 0, sizeof(rformat)); rformat.interleave = 1; rformat.format = SND_PCM_SFMT_U8; rformat.rate = DEFAULT_SPEED; rformat.voices = 1; if (argc > 1 && !strcmp(argv[1], "--help")) { usage(command); return 0; } if (argc > 1 && !strcmp(argv[1], "--version")) { version(); return 0; } while ((c = getopt(argc, argv, "hlc:d:qs:So:t:b:vrwuxB:c:p:mMVeE")) != EOF) switch (c) { case 'h': usage(command); return 0; case 'l': device_list(); return 0; case 'c': card = snd_card_name(optarg); if (card < 0) { fprintf(stderr, "Error: soundcard '%s' not found\n", optarg); return 1; } break; case 'd': dev = atoi(optarg); if (dev < 0 || dev > 32) { fprintf(stderr, "Error: device %i is invalid\n", dev); return 1; } break; case 'S': rformat.voices = 2; break; case 'o': tmp = atoi(optarg); if (tmp < 1 || tmp > 32) { fprintf(stderr, "Error: value %i for voices is invalid\n", tmp); return 1; } break; case 'q': quiet_mode = 1; break; case 'r': active_format = FORMAT_RAW; break; case 'v': active_format = FORMAT_VOC; break; case 'w': active_format = FORMAT_WAVE; break; case 'u': active_format = FORMAT_AU; rformat.format = SND_PCM_SFMT_MU_LAW; break; case 's': tmp = atoi(optarg); if (tmp < 300) tmp *= 1000; rformat.rate = tmp; if (tmp < 2000 || tmp > 128000) { fprintf(stderr, "Error: bad speed value %i\n", tmp); return 1; } break; case 't': timelimit = atoi(optarg); break; case 'b': tmp = atoi(optarg); switch (tmp) { case 8: rformat.format = SND_PCM_SFMT_U8; break; case 16: rformat.format = SND_PCM_SFMT_S16_LE; break; } break; case 'x': verbose_mode = 1; quiet_mode = 0; break; case 'p': if (!strcmp(optarg, "alaw")) { rformat.format = SND_PCM_SFMT_A_LAW; active_format = FORMAT_RAW; break; } else if (!strcmp(optarg, "ulaw") || !strcmp(optarg, "mulaw")) { rformat.format = SND_PCM_SFMT_MU_LAW; active_format = FORMAT_RAW; break; } if (!strcmp(optarg, "adpcm")) { rformat.format = SND_PCM_SFMT_IMA_ADPCM; active_format = FORMAT_RAW; break; } fprintf(stderr, "Error: wrong extended format '%s'\n", optarg); return 1; case 'm': case 'M': rformat.format = SND_PCM_SFMT_S16_LE; rformat.rate = c == 'M' ? 48000 : 44100; rformat.voices = 2; break; case 'V': version(); return 0; case 'e': if (!mmap_flag) { mode = SND_PCM_MODE_STREAM; if (direction == SND_PCM_OPEN_CAPTURE) direction = SND_PCM_OPEN_STREAM_CAPTURE; if (direction == SND_PCM_OPEN_PLAYBACK) direction = SND_PCM_OPEN_STREAM_PLAYBACK; } break; case 'E': if (mode == SND_PCM_MODE_BLOCK) mmap_flag = 1; break; default: usage(command); return 1; } if (!quiet_mode) version(); fcn_info = snd_pcm_plugin_info; fcn_params = snd_pcm_plugin_params; fcn_setup = snd_pcm_plugin_setup; fcn_status = snd_pcm_plugin_status; fcn_flush = snd_pcm_plugin_flush; fcn_write = snd_pcm_plugin_write; fcn_read = snd_pcm_plugin_read; if (mmap_flag) { fcn_info = snd_pcm_channel_info; fcn_params = snd_pcm_channel_params; fcn_setup = snd_pcm_channel_setup; fcn_status = snd_pcm_channel_status; fcn_flush = snd_pcm_flush_channel; fcn_write = snd_pcm_write; fcn_read = snd_pcm_read; } if ((err = snd_pcm_open(&pcm_handle, card, dev, direction)) < 0) { fprintf(stderr, "Error: audio open error: %s\n", snd_strerror(err)); return 1; } memset(&cinfo, 0, sizeof(cinfo)); cinfo.channel = channel; if ((err = fcn_info(pcm_handle, &cinfo)) < 0) { fprintf(stderr, "Error: channel info error: %s\n", snd_strerror(err)); return 1; } buffer_size = 1024; format = rformat; audiobuf = (char *)malloc(1024); if (audiobuf == NULL) { fprintf(stderr, "Error: not enough memory\n"); return 1; } if (optind > argc - 1) { if (channel == SND_PCM_CHANNEL_PLAYBACK) playback(NULL); else capture(NULL); } else { while (optind <= argc - 1) { if (channel == SND_PCM_CHANNEL_PLAYBACK) playback(argv[optind++]); else capture(argv[optind++]); } } snd_pcm_close(pcm_handle); return 0; } /* * Test, if it is a .VOC file and return >=0 if ok (this is the length of rest) * < 0 if not */ static int test_vocfile(void *buffer) { VocHeader *vp = buffer; if (strstr(vp->magic, VOC_MAGIC_STRING)) { vocminor = vp->version & 0xFF; vocmajor = vp->version / 256; if (vp->version != (0x1233 - vp->coded_ver)) return -2; /* coded version mismatch */ return vp->headerlen - sizeof(VocHeader); /* 0 mostly */ } return -1; /* magic string fail */ } /* * test, if it's a .WAV file, 0 if ok (and set the speed, stereo etc.) * < 0 if not */ static int test_wavefile(void *buffer) { WaveHeader *wp = buffer; if (wp->main_chunk == WAV_RIFF && wp->chunk_type == WAV_WAVE && wp->sub_chunk == WAV_FMT && wp->data_chunk == WAV_DATA) { if (wp->format != WAV_PCM_CODE) { fprintf(stderr, "%s: can't play not PCM-coded WAVE-files\n", command); exit(1); } if (wp->modus < 1 || wp->modus > 32) { fprintf(stderr, "%s: can't play WAVE-files with %d tracks\n", command, wp->modus); exit(1); } format.voices = wp->modus; switch (wp->bit_p_spl) { case 8: format.format = SND_PCM_SFMT_U8; break; case 16: format.format = SND_PCM_SFMT_S16_LE; break; default: fprintf(stderr, "%s: can't play WAVE-files with sample %d bits wide\n", command, wp->bit_p_spl); } format.rate = wp->sample_fq; count = wp->data_length; check_new_format(&format); return 0; } return -1; } /* */ static int test_au(int fd, void *buffer) { AuHeader *ap = buffer; if (ntohl(ap->magic) != AU_MAGIC) return -1; if (ntohl(ap->hdr_size) > 128 || ntohl(ap->hdr_size) < 24) return -1; count = ntohl(ap->data_size); switch (ntohl(ap->encoding)) { case AU_FMT_ULAW: format.format = SND_PCM_SFMT_MU_LAW; break; case AU_FMT_LIN8: format.format = SND_PCM_SFMT_U8; break; case AU_FMT_LIN16: format.format = SND_PCM_SFMT_U16_LE; break; default: return -1; } format.rate = ntohl(ap->sample_rate); if (format.rate < 2000 || format.rate > 256000) return -1; format.voices = ntohl(ap->channels); if (format.voices < 1 || format.voices > 128) return -1; if (read(fd, buffer + sizeof(AuHeader), ntohl(ap->hdr_size) - sizeof(AuHeader)) < 0) { fprintf(stderr, "%s: read error\n", command); exit(1); } check_new_format(&format); return 0; } /* * writing zeros from the zerobuf to simulate silence, * perhaps it's enough to use a long var instead of zerobuf ? */ static void write_zeros(unsigned x) { unsigned l; char *buf; buf = (char *) malloc(buffer_size); if (!buf) { fprintf(stderr, "%s: can allocate buffer for zeros\n", command); return; /* not fatal error */ } memset(buf, 128, buffer_size); while (x > 0) { l = x; if (l > buffer_size) l = buffer_size; if (fcn_write(pcm_handle, buf, l) != l) { fprintf(stderr, "%s: write error\n", command); exit(1); } x -= l; } } static void set_format(void) { unsigned int bps; /* bytes per second */ unsigned int size; /* fragment size */ struct snd_pcm_channel_params params; struct snd_pcm_channel_setup setup; if (!format_change) return; bps = format.rate * format.voices; silence = 0x00; switch (format.format) { case SND_PCM_SFMT_U8: silence = 0x80; break; case SND_PCM_SFMT_U16_LE: case SND_PCM_SFMT_U16_BE: bps <<= 1; silence = 0x80; break; case SND_PCM_SFMT_S8: silence = 0x00; break; case SND_PCM_SFMT_S16_LE: case SND_PCM_SFMT_S16_BE: bps <<= 1; silence = 0x00; break; case SND_PCM_SFMT_IMA_ADPCM: bps >>= 2; silence = 0x00; break; } bps >>= 2; /* ok.. this buffer should be 0.25 sec */ if (bps < 16) bps = 16; size = 1; while ((size << 1) < bps) size <<= 1; if (mmap_flag) snd_pcm_munmap(pcm_handle, channel); fcn_flush(pcm_handle, channel); /* to be in right state */ memset(¶ms, 0, sizeof(params)); params.mode = mode; params.channel = channel; memcpy(¶ms.format, &format, sizeof(format)); if (channel == SND_PCM_CHANNEL_PLAYBACK) { params.start_mode = SND_PCM_START_FULL; } else { params.start_mode = SND_PCM_START_DATA; } params.stop_mode = SND_PCM_STOP_STOP; if (mode == SND_PCM_MODE_BLOCK) { params.buf.block.frag_size = size; // params.buf.block.frag_size = 128; params.buf.block.frags_max = -1; /* little trick (playback only) */ // params.buf.block.frags_max = 1; params.buf.block.frags_min = 1; } else { params.buf.stream.queue_size = 1024 * 1024; /* maximum */ // params.buf.stream.queue_size = 8192; params.buf.stream.fill = SND_PCM_FILL_SILENCE; params.buf.stream.max_fill = 1024; } if (fcn_params(pcm_handle, ¶ms) < 0) { fprintf(stderr, "%s: unable to set channel params\n", command); exit(1); } if (mmap_flag) { if (snd_pcm_mmap(pcm_handle, channel, &mmap_control, (void **)&mmap_data)<0) { fprintf(stderr, "%s: unable to mmap memory\n", command); exit(1); } } if (snd_pcm_plugin_prepare(pcm_handle, channel) < 0) { fprintf(stderr, "%s: unable to prepare channel\n", command); exit(1); } memset(&setup, 0, sizeof(setup)); setup.mode = mode; setup.channel = channel; if (fcn_setup(pcm_handle, &setup) < 0) { fprintf(stderr, "%s: unable to obtain setup\n", command); exit(1); } frags = setup.buf.block.frags; buffer_size = mode == SND_PCM_MODE_BLOCK ? setup.buf.block.frag_size : setup.buf.stream.queue_size; audiobuf = (char *)realloc(audiobuf, buffer_size); if (audiobuf == NULL) { fprintf(stderr, "%s: not enough memory\n", command); exit(1); } // printf("real buffer_size = %i, frags = %i, total = %i\n", buffer_size, setup.buf.block.frags, setup.buf.block.frags * buffer_size); format_change = 0; } /* * ok, let's play a .voc file */ static void voc_play(int fd, int ofs, char *name) { int l; VocBlockType *bp; VocVoiceData *vd; VocExtBlock *eb; u_long nextblock, in_buffer; u_char *data = audiobuf; char was_extended = 0, output = 0; u_short *sp, repeat = 0; u_long silence; int filepos = 0; #define COUNT(x) nextblock -= x; in_buffer -=x ;data += x #define COUNT1(x) in_buffer -=x ;data += x if (!quiet_mode) { fprintf(stderr, "Playing Creative Labs Voice file '%s'...\n", name); } /* first we waste the rest of header, ugly but we don't need seek */ while (ofs > buffer_size) { if (read(fd, audiobuf, buffer_size) != buffer_size) { fprintf(stderr, "%s: read error\n", command); exit(1); } ofs -= buffer_size; } if (ofs) if (read(fd, audiobuf, ofs) != ofs) { fprintf(stderr, "%s: read error\n", command); exit(1); } format.format = SND_PCM_SFMT_U8; format.voices = 1; format.rate = DEFAULT_SPEED; format_change = 1; set_format(); in_buffer = nextblock = 0; while (1) { Fill_the_buffer: /* need this for repeat */ if (in_buffer < 32) { /* move the rest of buffer to pos 0 and fill the audiobuf up */ if (in_buffer) memcpy(audiobuf, data, in_buffer); data = audiobuf; if ((l = read(fd, audiobuf + in_buffer, buffer_size - in_buffer)) > 0) in_buffer += l; else if (!in_buffer) { /* the file is truncated, so simulate 'Terminator' and reduce the datablock for save landing */ nextblock = audiobuf[0] = 0; if (l == -1) { perror(name); exit(-1); } } } while (!nextblock) { /* this is a new block */ if (in_buffer < sizeof(VocBlockType)) return; bp = (VocBlockType *) data; COUNT1(sizeof(VocBlockType)); nextblock = VOC_DATALEN(bp); if (output && !quiet_mode) fprintf(stderr, "\n"); /* write /n after ASCII-out */ output = 0; switch (bp->type) { case 0: #if 0 d_printf("Terminator\n"); #endif return; /* VOC-file stop */ case 1: vd = (VocVoiceData *) data; COUNT1(sizeof(VocVoiceData)); /* we need a SYNC, before we can set new SPEED, STEREO ... */ if (!was_extended) { format.rate = (int) (vd->tc); format.rate = 1000000 / (256 - format.rate); #if 0 d_printf("Voice data %d Hz\n", dsp_speed); #endif if (vd->pack) { /* /dev/dsp can't it */ fprintf(stderr, "%s: can't play packed .voc files\n", command); return; } if (format.voices == 2) /* if we are in Stereo-Mode, switch back */ format.voices = 1; } else { /* there was extended block */ format.voices = 2; was_extended = 0; } format_change = 1; set_format(); break; case 2: /* nothing to do, pure data */ #if 0 d_printf("Voice continuation\n"); #endif break; case 3: /* a silence block, no data, only a count */ sp = (u_short *) data; COUNT1(sizeof(u_short)); format.rate = (int) (*data); COUNT1(1); format.rate = 1000000 / (256 - format.rate); format_change = 1; set_format(); silence = (((u_long) * sp) * 1000) / format.rate; #if 0 d_printf("Silence for %d ms\n", (int) silence); #endif write_zeros(*sp); snd_pcm_flush_playback(pcm_handle); break; case 4: /* a marker for syncronisation, no effect */ sp = (u_short *) data; COUNT1(sizeof(u_short)); #if 0 d_printf("Marker %d\n", *sp); #endif break; case 5: /* ASCII text, we copy to stderr */ output = 1; #if 0 d_printf("ASCII - text :\n"); #endif break; case 6: /* repeat marker, says repeatcount */ /* my specs don't say it: maybe this can be recursive, but I don't think somebody use it */ repeat = *(u_short *) data; COUNT1(sizeof(u_short)); #if 0 d_printf("Repeat loop %d times\n", repeat); #endif if (filepos >= 0) { /* if < 0, one seek fails, why test another */ if ((filepos = lseek(fd, 0, 1)) < 0) { fprintf(stderr, "%s: can't play loops; %s isn't seekable\n", command, name); repeat = 0; } else { filepos -= in_buffer; /* set filepos after repeat */ } } else { repeat = 0; } break; case 7: /* ok, lets repeat that be rewinding tape */ if (repeat) { if (repeat != 0xFFFF) { #if 0 d_printf("Repeat loop %d\n", repeat); #endif --repeat; } #if 0 else d_printf("Neverending loop\n"); #endif lseek(fd, filepos, 0); in_buffer = 0; /* clear the buffer */ goto Fill_the_buffer; } #if 0 else d_printf("End repeat loop\n"); #endif break; case 8: /* the extension to play Stereo, I have SB 1.0 :-( */ was_extended = 1; eb = (VocExtBlock *) data; COUNT1(sizeof(VocExtBlock)); format.rate = (int) (eb->tc); format.rate = 256000000L / (65536 - format.rate); format.voices = eb->mode == VOC_MODE_STEREO ? 2 : 1; if (format.voices == 2) format.rate = format.rate >> 1; if (eb->pack) { /* /dev/dsp can't it */ fprintf(stderr, "%s: can't play packed .voc files\n", command); return; } #if 0 d_printf("Extended block %s %d Hz\n", (eb->mode ? "Stereo" : "Mono"), dsp_speed); #endif break; default: fprintf(stderr, "%s: unknown blocktype %d. terminate.\n", command, bp->type); return; } /* switch (bp->type) */ } /* while (! nextblock) */ /* put nextblock data bytes to dsp */ l = in_buffer; if (nextblock < l) l = nextblock; if (l) { if (output && !quiet_mode) { if (write(2, data, l) != l) { /* to stderr */ fprintf(stderr, "%s: write error\n", command); exit(1); } } else { if (fcn_write(pcm_handle, data, l) != l) { fprintf(stderr, "%s: write error\n", command); exit(1); } } COUNT(l); } } /* while(1) */ } /* that was a big one, perhaps somebody split it :-) */ /* setting the globals for playing raw data */ static void init_raw_data(void) { format = rformat; } /* calculate the data count to read from/to dsp */ static u_long calc_count(void) { u_long count; if (!timelimit) count = 0x7fffffff; else { count = timelimit * format.rate * format.voices; switch (format.format) { case SND_PCM_SFMT_S16_LE: case SND_PCM_SFMT_S16_BE: case SND_PCM_SFMT_U16_LE: case SND_PCM_SFMT_U16_BE: count *= 2; break; case SND_PCM_SFMT_IMA_ADPCM: count /= 4; break; } } return count; } /* write a .VOC-header */ static void begin_voc(int fd, u_long cnt) { VocHeader vh; VocBlockType bt; VocVoiceData vd; VocExtBlock eb; strncpy(vh.magic, VOC_MAGIC_STRING, 20); vh.magic[19] = 0x1A; vh.headerlen = sizeof(VocHeader); vh.version = VOC_ACTUAL_VERSION; vh.coded_ver = 0x1233 - VOC_ACTUAL_VERSION; if (write(fd, &vh, sizeof(VocHeader)) != sizeof(VocHeader)) { fprintf(stderr, "%s: write error\n", command); exit(1); } if (format.voices > 1) { /* write a extended block */ bt.type = 8; bt.datalen = 4; bt.datalen_m = bt.datalen_h = 0; if (write(fd, &bt, sizeof(VocBlockType)) != sizeof(VocBlockType)) { fprintf(stderr, "%s: write error\n", command); exit(1); } eb.tc = (u_short) (65536 - 256000000L / (format.rate << 1)); eb.pack = 0; eb.mode = 1; if (write(fd, &eb, sizeof(VocExtBlock)) != sizeof(VocExtBlock)) { fprintf(stderr, "%s: write error\n", command); exit(1); } } bt.type = 1; cnt += sizeof(VocVoiceData); /* Voice_data block follows */ bt.datalen = (u_char) (cnt & 0xFF); bt.datalen_m = (u_char) ((cnt & 0xFF00) >> 8); bt.datalen_h = (u_char) ((cnt & 0xFF0000) >> 16); if (write(fd, &bt, sizeof(VocBlockType)) != sizeof(VocBlockType)) { fprintf(stderr, "%s: write error\n", command); exit(1); } vd.tc = (u_char) (256 - (1000000 / format.rate)); vd.pack = 0; if (write(fd, &vd, sizeof(VocVoiceData)) != sizeof(VocVoiceData)) { fprintf(stderr, "%s: write error\n", command); exit(1); } } /* write a WAVE-header */ static void begin_wave(int fd, u_long cnt) { WaveHeader wh; int bits; bits = 8; switch (format.format) { case SND_PCM_SFMT_U8: bits = 8; break; case SND_PCM_SFMT_S16_LE: bits = 16; break; default: fprintf(stderr, "%s: Wave doesn't support %s format...\n", command, get_format(format.format)); exit(1); } wh.main_chunk = WAV_RIFF; wh.length = cnt + sizeof(WaveHeader) - 8; wh.chunk_type = WAV_WAVE; wh.sub_chunk = WAV_FMT; wh.sc_len = 16; wh.format = WAV_PCM_CODE; wh.modus = format.voices; wh.sample_fq = format.rate; #if 0 wh.byte_p_spl = (samplesize == 8) ? 1 : 2; wh.byte_p_sec = dsp_speed * wh.modus * wh.byte_p_spl; #else wh.byte_p_spl = wh.modus * ((bits + 7) / 8); wh.byte_p_sec = wh.byte_p_spl * format.rate; #endif wh.bit_p_spl = bits; wh.data_chunk = WAV_DATA; wh.data_length = cnt; if (write(fd, &wh, sizeof(WaveHeader)) != sizeof(WaveHeader)) { fprintf(stderr, "%s: write error\n", command); exit(1); } } /* write a Au-header */ static void begin_au(int fd, u_long cnt) { AuHeader ah; ah.magic = htonl(AU_MAGIC); ah.hdr_size = htonl(24); ah.data_size = htonl(cnt); switch (format.format) { case SND_PCM_SFMT_MU_LAW: ah.encoding = htonl(AU_FMT_ULAW); break; case SND_PCM_SFMT_U8: ah.encoding = htonl(AU_FMT_LIN8); break; case SND_PCM_SFMT_S16_LE: ah.encoding = htonl(AU_FMT_LIN16); break; default: fprintf(stderr, "%s: Sparc Audio doesn't support %s format...\n", command, get_format(format.format)); exit(1); } ah.sample_rate = htonl(format.rate); ah.channels = htonl(format.voices); if (write(fd, &ah, sizeof(AuHeader)) != sizeof(AuHeader)) { fprintf(stderr, "%s: write error\n", command); exit(1); } } /* closing .VOC */ static void end_voc(int fd) { char dummy = 0; /* Write a Terminator */ if (write(fd, &dummy, 1) != 1) { fprintf(stderr, "%s: write error", command); exit(1); } if (fd != 1) close(fd); } static void end_wave(int fd) { /* only close output */ if (fd != 1) close(fd); } static void header(int rtype, char *name) { if (!quiet_mode) { fprintf(stderr, "%s %s '%s' : ", (channel == SND_PCM_CHANNEL_PLAYBACK) ? "Playing" : "Recording", fmt_rec_table[rtype].what, name); fprintf(stderr, "%s, ", get_format(format.format)); fprintf(stderr, "Rate %d Hz, ", format.rate); if (format.voices == 1) fprintf(stderr, "Mono"); else if (format.voices == 2) fprintf(stderr, "Stereo"); else fprintf(stderr, "Voices %i", format.voices); fprintf(stderr, "\n"); } } /* playback write error hander */ void playback_write_error(void) { snd_pcm_channel_status_t status; memset(&status, 0, sizeof(status)); status.channel = channel; if (fcn_status(pcm_handle, &status)<0) { fprintf(stderr, "playback channel status error\n"); exit(1); } if (status.status == SND_PCM_STATUS_UNDERRUN) { printf("underrun at position %u!!!\n", status.scount); if (snd_pcm_plugin_prepare(pcm_handle, SND_PCM_CHANNEL_PLAYBACK)<0) { fprintf(stderr, "underrun: playback channel prepare error\n"); exit(1); } frag = 0; return; /* ok, data should be accepted again */ } fprintf(stderr, "write error\n"); exit(1); } /* capture read error hander */ void capture_read_error(void) { snd_pcm_channel_status_t status; memset(&status, 0, sizeof(status)); status.channel = channel; if (fcn_status(pcm_handle, &status)<0) { fprintf(stderr, "capture channel status error\n"); exit(1); } if (status.status == SND_PCM_STATUS_OVERRUN) { printf("overrun at position %u!!!\n", status.scount); if (snd_pcm_plugin_prepare(pcm_handle, SND_PCM_CHANNEL_CAPTURE)<0) { fprintf(stderr, "overrun: capture channel prepare error\n"); exit(1); } frag = 0; return; /* ok, data should be accepted again */ } fprintf(stderr, "read error\n"); exit(1); } /* playing raw data */ void playback_go(int fd, int loaded, u_long count, int rtype, char *name) { int l, r; u_long c; header(rtype, name); format_change = 1; set_format(); while (count) { l = loaded; loaded = 0; do { c = count; if (c + l > buffer_size) c = buffer_size - l; if ((r = read(fd, audiobuf + l, c)) <= 0) break; l += r; } while (mode != SND_PCM_MODE_STREAM || l < buffer_size); if (l > 0) { #if 0 sleep(1); #endif if (mmap_flag) { if (l != buffer_size) memset(audiobuf + l, silence, buffer_size - l); while (mmap_control->fragments[frag].data) { switch (mmap_control->status.status) { case SND_PCM_STATUS_PREPARED: if (snd_pcm_channel_go(pcm_handle, SND_PCM_CHANNEL_PLAYBACK)<0) { fprintf(stderr, "%s: unable to start playback\n", command); exit(1); } break; case SND_PCM_STATUS_RUNNING: break; case SND_PCM_STATUS_UNDERRUN: playback_write_error(); break; default: fprintf(stderr, "%s: bad status (mmap) = %i\n", command, mmap_control->status.status); } usleep(10000); } memcpy(mmap_data + mmap_control->fragments[frag].addr, audiobuf, buffer_size); mmap_control->fragments[frag].data = 1; frag++; frag %= frags; } else if (mode == SND_PCM_MODE_BLOCK) { if (l != buffer_size) memset(audiobuf + l, silence, buffer_size - l); while (fcn_write(pcm_handle, audiobuf, buffer_size) != buffer_size) playback_write_error(); count -= l; } else { char *buf = audiobuf; while (l > 0) { while ((r = fcn_write(pcm_handle, buf, l)) < 0) { playback_write_error(); } #if 0 { static int x = 1024*1024; if (r > 0 && r < x) { x = r; printf("smallest - %i\n", x); } } #endif l -= r; count -= r; buf += r; if (r < 32) usleep(10000); } } } else { if (l == -1) perror(name); count = 0; /* Stop */ } } /* while (count) */ fcn_flush(pcm_handle, SND_PCM_CHANNEL_PLAYBACK); } /* captureing raw data, this proc handels WAVE files and .VOCs (as one block) */ void capture_go(int fd, int loaded, u_long count, int rtype, char *name) { int l; u_long c; header(rtype, name); format_change = 1; set_format(); while (count) { c = count; if (mmap_flag) { while (!mmap_control->fragments[frag].data) { switch (mmap_control->status.status) { case SND_PCM_STATUS_PREPARED: if (snd_pcm_channel_go(pcm_handle, SND_PCM_CHANNEL_CAPTURE)<0) { fprintf(stderr, "%s: unable to start capture\n", command); exit(1); } break; case SND_PCM_STATUS_RUNNING: break; case SND_PCM_STATUS_OVERRUN: capture_read_error(); break; default: fprintf(stderr, "%s: bad status (mmap) = %i\n", command, mmap_control->status.status); } usleep(10000); } if (c > buffer_size) c = buffer_size; if (write(fd, mmap_data + mmap_control->fragments[frag].addr, c) != c) { perror(name); exit(-1); } mmap_control->fragments[frag].data = 0; frag++; frag %= frags; count -= c; } else { if ((l = fcn_read(pcm_handle, audiobuf, buffer_size)) > 0) { #if 0 { static int x = 1024*1024; if (l < x) { x = l; printf("smallest - %i\n", x); } } #endif if (c > l) c = l; if (write(fd, audiobuf, c) != c) { perror(name); exit(-1); } count -= c; } if (l < 0) { fprintf(stderr, "read error: %s\n", snd_strerror(l)); exit(-1); } if (l == 0) usleep(10000); } } } /* * let's play or capture it (capture_type says VOC/WAVE/raw) */ static void playback(char *name) { int fd, ofs; fcn_flush(pcm_handle, SND_PCM_CHANNEL_PLAYBACK); if (!name || !strcmp(name, "-")) { fd = 0; name = "stdin"; } else { if ((fd = open(name, O_RDONLY, 0)) == -1) { perror(name); exit(1); } } /* read the file header */ if (read(fd, audiobuf, sizeof(AuHeader)) != sizeof(AuHeader)) { fprintf(stderr, "%s: read error", command); exit(1); } if (test_au(fd, audiobuf) >= 0) { rformat.format = SND_PCM_SFMT_MU_LAW; playback_go(fd, 0, count, FORMAT_AU, name); goto __end; } if (read(fd, audiobuf + sizeof(AuHeader), sizeof(VocHeader) - sizeof(AuHeader)) != sizeof(VocHeader) - sizeof(AuHeader)) { fprintf(stderr, "%s: read error", command); exit(1); } if ((ofs = test_vocfile(audiobuf)) >= 0) { voc_play(fd, ofs, name); goto __end; } /* read bytes for WAVE-header */ if (read(fd, audiobuf + sizeof(VocHeader), sizeof(WaveHeader) - sizeof(VocHeader)) != sizeof(WaveHeader) - sizeof(VocHeader)) { fprintf(stderr, "%s: read error", command); exit(1); } if (test_wavefile(audiobuf) >= 0) { playback_go(fd, 0, count, FORMAT_WAVE, name); } else { /* should be raw data */ check_new_format(&rformat); init_raw_data(); count = calc_count(); playback_go(fd, sizeof(WaveHeader), count, FORMAT_RAW, name); } __end: if (fd != 0) close(fd); } static void capture(char *name) { int fd; snd_pcm_flush_capture(pcm_handle); if (!name || !strcmp(name, "-")) { fd = 1; name = "stdout"; } else { remove(name); if ((fd = open(name, O_WRONLY | O_CREAT, 0644)) == -1) { perror(name); exit(1); } } count = calc_count() & 0xFFFFFFFE; /* WAVE-file should be even (I'm not sure), but wasting one byte isn't a problem (this can only be in 8 bit mono) */ if (fmt_rec_table[active_format].start) fmt_rec_table[active_format].start(fd, count); check_new_format(&rformat); capture_go(fd, 0, count, active_format, name); fmt_rec_table[active_format].end(fd); }