FreeCalypso > hg > freecalypso-tools
view ffstools/tiaud/decomp.c @ 619:f82551c77e58
libserial-newlnx: ASYNC_LOW_LATENCY patch reverted
Reports from Das Signal indicate that loadtools performance on Debian
is about the same as on Slackware, and that including or omitting the
ASYNC_LOW_LATENCY patch from Serg makes no difference. Because the
patch in question does not appear to be necessary, it is being reverted
until and unless someone other than Serg reports an actual real-world
system on which loadtools operation times are slowed compared to the
Mother's Slackware reference and on which Slackware-like performance
can be restored by setting the ASYNC_LOW_LATENCY flag.
author | Mychaela Falconia <falcon@freecalypso.org> |
---|---|
date | Thu, 27 Feb 2020 01:09:48 +0000 |
parents | 568e2a2b49c8 |
children | c458e33060bf |
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/* * This utility decompiles a binary /aud/*.cfg file read out of FFS * into our ASCII text representation. */ #include <sys/types.h> #include <sys/file.h> #include <sys/stat.h> #include <stdio.h> #include <stdint.h> #include <endian.h> #include <stdlib.h> #include <unistd.h> #include "binstruct.h" struct audio_cfg_bin bin; FILE *outf; read_bin_file(filename) char *filename; { int fd; struct stat st; fd = open(filename, O_RDONLY); if (fd < 0) { perror(filename); exit(1); } fstat(fd, &st); if (!S_ISREG(st.st_mode)) { fprintf(stderr, "%s is not a regular file\n", filename); exit(1); } if (st.st_size != sizeof(struct audio_cfg_bin)) { fprintf(stderr, "%s has the wrong length\n", filename); exit(1); } read(fd, &bin, sizeof bin); close(fd); } emit_fir(table) uint16_t *table; { int i; for (i = 0; i < 31; i++) { if ((i % 8) == 0) fprintf(outf, "\tfir %2d", i); fprintf(outf, " 0x%04X", le16toh(table[i])); if (i == 7 || i == 15 || i == 23 || i == 30) putc('\n', outf); } } emit_ascii() { int i; fprintf(outf, "voice-path %u\n", bin.voice_path); switch (bin.mic_mode) { case AUDIO_MICROPHONE_HANDHELD: fprintf(outf, "mic default {\n"); break; case AUDIO_MICROPHONE_HANDFREE: fprintf(outf, "mic aux {\n"); break; case AUDIO_MICROPHONE_HEADSET: fprintf(outf, "mic headset {\n"); break; default: fprintf(stderr, "error: unknown microphone mode 0x%02X\n", bin.mic_mode); exit(1); } fprintf(outf, "\tgain %d\n", bin.mic_bytes[0]); if (bin.mic_mode == AUDIO_MICROPHONE_HANDFREE) { fprintf(outf, "\textra-gain %d\n", bin.mic_bytes[1]); fprintf(outf, "\toutput-bias %d\n", bin.mic_bytes[2]); } else fprintf(outf, "\toutput-bias %d\n", bin.mic_bytes[1]); emit_fir(bin.mic_fir); fputs("}\n", outf); switch (bin.speaker_mode) { case AUDIO_SPEAKER_HANDHELD: fprintf(outf, "speaker ear {\n"); break; case AUDIO_SPEAKER_HANDFREE: fprintf(outf, "speaker aux {\n"); break; case AUDIO_SPEAKER_HEADSET: fprintf(outf, "speaker headset {\n"); break; case AUDIO_SPEAKER_BUZZER: fprintf(outf, "speaker buzzer {\n"); break; case AUDIO_SPEAKER_HANDHELD_HANDFREE: fprintf(outf, "speaker ear+aux {\n"); break; default: fprintf(stderr, "error: unknown speaker mode 0x%02X\n", bin.speaker_mode); exit(1); } if (bin.speaker_mode != AUDIO_SPEAKER_BUZZER) { fprintf(outf, "\tgain %d\n", bin.speaker_bytes[0]); fprintf(outf, "\taudio-filter %d\n", bin.speaker_bytes[1]); emit_fir(bin.speaker_fir); } else fprintf(outf, "\tactivate %d\n", bin.speaker_bytes[0]); fputs("}\n", outf); fprintf(outf, "sidetone %d\n", bin.sidetone_gain); fputs("aec", outf); for (i = 0; i < 5; i++) { putc(' ', outf); if (bin.aec_words[i]) fprintf(outf, "0x%X", le16toh(bin.aec_words[i])); else putc('0', outf); } putc('\n', outf); } main(argc, argv) char **argv; { if (argc < 2 || argc > 3) { fprintf(stderr, "usage: %s infile [outfile]\n", argv[0]); exit(1); } read_bin_file(argv[1]); if (argc > 2) { outf = fopen(argv[2], "w"); if (!outf) { perror(argv[2]); exit(1); } } else outf = stdout; emit_ascii(); exit(0); }