X-Git-Url: http://git.tuebingen.mpg.de/?p=paraslash.git;a=blobdiff_plain;f=write.c;h=7b95d6b37eb3865d475a3bda4f822ec3e9b60893;hp=7e6d47a56beb5e827ebbaa7d31cf2560f6b8f49f;hb=d9f939fe8a68267a62b68546b17e1ec9a34aab0b;hpb=3c5c2ebfc2d651f2f77d0df89cbb58a2068bcad0;ds=sidebyside diff --git a/write.c b/write.c index 7e6d47a5..7b95d6b3 100644 --- a/write.c +++ b/write.c @@ -1,21 +1,14 @@ /* - * Copyright (C) 2005-2006 Andre Noll + * Copyright (C) 2005-2007 Andre Noll * - * 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., 59 Temple Place - Suite 330, Boston, MA 02111, USA. + * Licensed under the GPL v2. For licencing details see COPYING. */ +/** \file write.c Paraslash's standalone wav/raw player. */ + +#include +#include + #include "para.h" #include "string.h" #include "write.cmdline.h" @@ -29,87 +22,90 @@ INIT_WRITE_ERRLISTS; +/** Check if given buffer contains a valid wave header. */ struct check_wav_task { + /** The buffer to check. */ char *buf; + /** Number of bytes loaded in \a buf. */ size_t *loaded; + /** Non-zero if end of file was reached. */ int *eof; + /** Number of channels specified in wav header given by \a buf. */ unsigned channels; - unsigned sample_rate; + /** Samplerate specified in wav header given by \a buf. */ + unsigned samplerate; + /** The task structure for this task. */ struct task task; }; +/** Delay writing until given time. */ struct initial_delay_task { + /** The time the first data should be written out. */ struct timeval start_time; + /** The task structure for this task. */ struct task task; }; -struct gengetopt_args_info conf; -struct stdin_task sit; -struct check_wav_task cwt; -struct initial_delay_task idt; +static struct write_args_info conf; +static struct stdin_task sit; +static struct check_wav_task cwt; +static struct initial_delay_task idt; static struct writer_node_group *wng; +/** Length of a standard wav header. */ #define WAV_HEADER_LEN 44 /** - * test if audio buffer contains a valid wave header + * Test if audio buffer contains a valid wave header. * * \return If not, return -E_NO_WAV_HEADER, otherwise, return zero. If * there is less than WAV_HEADER_LEN bytes awailable, return one. */ -static void check_wav_pre_select(struct sched *s, struct task *t) +static void check_wav_pre_select(__a_unused struct sched *s, struct task *t) { - struct check_wav_task *cwt = t->private_data; + struct check_wav_task *wt = t->private_data; unsigned char *a; - if (*cwt->loaded < WAV_HEADER_LEN) { - t->ret = *cwt->eof? -E_PREMATURE_END : 1; + if (*wt->loaded < WAV_HEADER_LEN) { + t->ret = *wt->eof? -E_PREMATURE_END : 1; return; } - a = (unsigned char*)cwt->buf; + wt->channels = 2; + wt->samplerate = 44100; + a = (unsigned char*)wt->buf; t->ret = -E_NO_WAV_HEADER; if (a[0] != 'R' || a[1] != 'I' || a[2] != 'F' || a[3] != 'F') return; - cwt->channels = (unsigned) a[22]; - cwt->sample_rate = a[24] + (a[25] << 8) + (a[26] << 16) + (a[27] << 24); - *cwt->loaded -= WAV_HEADER_LEN; - memmove(cwt->buf, cwt->buf + WAV_HEADER_LEN, *cwt->loaded); - t->ret = 0; - PARA_INFO_LOG("channels: %d, sample_rate: %d\n", cwt->channels, cwt->sample_rate); + wt->channels = (unsigned) a[22]; + wt->samplerate = a[24] + (a[25] << 8) + (a[26] << 16) + (a[27] << 24); + *wt->loaded -= WAV_HEADER_LEN; + memmove(wt->buf, wt->buf + WAV_HEADER_LEN, *wt->loaded); + t->ret = -E_WAV_HEADER_SUCCESS; + PARA_INFO_LOG("channels: %d, sample rate: %d\n", wt->channels, wt->samplerate); } static void initial_delay_pre_select(struct sched *s, struct task *t) { - struct initial_delay_task *idt = t->private_data; + struct initial_delay_task *dt = t->private_data; struct timeval diff; - PARA_ERROR_LOG("task %p, ret: %d\n", t, t->ret); t->ret = -E_NO_DELAY; - if (!idt->start_time.tv_sec && !idt->start_time.tv_usec) + if (!dt->start_time.tv_sec && !dt->start_time.tv_usec) return; - t->ret = 0; /* timeout */ - if (tv_diff(&s->now, &idt->start_time, &diff) > 0) + t->ret = -E_DELAY_TIMEOUT; + if (tv_diff(now, &dt->start_time, &diff) > 0) return; t->ret = 1; if (tv_diff(&s->timeout , &diff, NULL) > 0) s->timeout = diff; } -void para_log(int ll, const char* fmt,...) -{ - va_list argp; - - if (ll < conf.loglevel_arg) - return; - va_start(argp, fmt); - vfprintf(stderr, fmt, argp); - va_end(argp); -} +INIT_STDERR_LOGGING(conf.loglevel_arg) static struct writer_node_group *check_args(void) { int i, ret = -E_WRITE_SYNTAX; - struct writer_node_group *wng = NULL; + struct writer_node_group *g = NULL; if (conf.list_writers_given) { char *msg = NULL; @@ -125,8 +121,6 @@ static struct writer_node_group *check_args(void) free(msg); exit(EXIT_SUCCESS); } - if (conf.prebuffer_arg < 0 || conf.prebuffer_arg > 100) - goto out; if (conf.start_time_given) { long unsigned sec, usec; if (sscanf(conf.start_time_arg, "%lu:%lu", @@ -136,34 +130,50 @@ static struct writer_node_group *check_args(void) idt.start_time.tv_usec = usec; } if (!conf.writer_given) { - wng = setup_default_wng(); + g = setup_default_wng(); ret = 1; goto out; } - wng = wng_new(conf.writer_given); + g = wng_new(conf.writer_given); + ret = -E_WRITE_SYNTAX; for (i = 0; i < conf.writer_given; i++) { - ret = check_writer_arg(conf.writer_arg[i]); - if (ret < 0) + int writer_num; + g->writer_nodes[i].conf = check_writer_arg( + conf.writer_arg[i], &writer_num); + if (!g->writer_nodes[i].conf) goto out; - wng->writer_nodes[i].writer = &writers[ret]; + g->writer_nodes[i].writer = &writers[writer_num]; } ret = 1; out: - if (ret > 0) { - return wng; - } - free(wng); + if (ret > 0) + return g; + free(g); return NULL; } -static void idt_error_handler(struct task *t) +static void wng_event_handler(struct task *t) +{ + struct writer_node_group *g = t->private_data; + + PARA_INFO_LOG("%s\n", PARA_STRERROR(-t->ret)); + unregister_task(t); + wng_close(g); +} + + +static void idt_event_handler(struct task *t) { - PARA_ERROR_LOG("task %p, ret: %d\n", t, t->ret); int ret; + + PARA_INFO_LOG("%s\n", PARA_STRERROR(-t->ret)); unregister_task(t); wng->buf = sit.buf; wng->loaded = &sit.loaded; - wng->eof = &sit.eof; + wng->input_eof = &sit.eof; + wng->task.event_handler = wng_event_handler; + wng->channels = &cwt.channels; + wng->samplerate = &cwt.samplerate; ret = wng_open(wng); if (ret < 0) { PARA_ERROR_LOG("%s\n", PARA_STRERROR(-ret)); @@ -171,63 +181,61 @@ static void idt_error_handler(struct task *t) } } -static void cwt_error_handler(struct task *t) +static void cwt_event_handler(struct task *t) { - PARA_ERROR_LOG("task %p, ret: %d\n", t, t->ret); - if (t->ret < 0) { + if (t->ret != -E_NO_WAV_HEADER && t->ret != -E_WAV_HEADER_SUCCESS) { PARA_ERROR_LOG("%s\n", PARA_STRERROR(-t->ret)); - if (t->ret != -E_NO_WAV_HEADER && t->ret != -E_PRE_EOF) - exit(EXIT_FAILURE); - if (t->ret == -E_PRE_EOF) { - conf.channels_arg = cwt.channels; - conf.sample_rate_arg = cwt.sample_rate; - } + exit(EXIT_FAILURE); } + PARA_INFO_LOG("%s\n", PARA_STRERROR(-t->ret)); unregister_task(t); +// if (t->ret == -E_WAV_HEADER_SUCCESS) { +// conf.channels_arg = cwt.channels; +// conf.sample_rate_arg = cwt.sample_rate; +// } idt.task.pre_select = initial_delay_pre_select; idt.task.private_data = &idt; - idt.task.error_handler = idt_error_handler; - idt.task.flags = PRE_EOF_IS_ERROR; + idt.task.event_handler = idt_event_handler; + sprintf(idt.task.status, "initial_delay"); register_task(&idt.task); } -static void stdin_error_handler(struct task *t) -{ - unregister_task(t); - PARA_INFO_LOG("task %p, ret: %d\n", t, t->ret); - if (t->ret < 0) - PARA_ERROR_LOG("%s\n", PARA_STRERROR(-t->ret)); -} - +/** + * Para_write's main function. + * + * \param argc The usual argument counter. + * \param argv The usual argument vector. + * + * It registers the stdin task, the check_wav_task, the task for initial delay + * and all tasks for actually writing out the stream. + * + * \return \p EXIT_SUCCESS or EXIT_FAILURE + */ int main(int argc, char *argv[]) { int ret = -E_WRITE_SYNTAX; struct sched s; - cmdline_parser(argc, argv, &conf); + write_cmdline_parser(argc, argv, &conf); + HANDLE_VERSION_FLAG("write", conf); + init_supported_writers(); + wng = check_args(); if (!wng) goto out; - init_supported_writers(); - init_sched(); - - sit.bufsize = 16 * 1024, - sit.buf = para_malloc(16 * 1024), - sit.loaded = 0, - sit.task.pre_select = stdin_pre_select; - sit.task.post_select = stdin_post_select; - sit.task.error_handler = stdin_error_handler; - sit.task.flags = POST_EOF_IS_ERROR; - sit.task.private_data = &sit; + stdin_set_defaults(&sit); + if (conf.bufsize_given) + sit.bufsize = conf.bufsize_arg; + sit.buf = para_malloc(sit.bufsize), register_task(&sit.task); cwt.task.pre_select = check_wav_pre_select; cwt.task.private_data = &cwt; - cwt.task.error_handler = cwt_error_handler; + cwt.task.event_handler = cwt_event_handler; cwt.buf = sit.buf; cwt.loaded = &sit.loaded; cwt.eof = &sit.eof; - cwt.task.flags = PRE_EOF_IS_ERROR; + sprintf(cwt.task.status, "check wav"); register_task(&cwt.task); s.default_timeout.tv_sec = 1;