/*
- * Copyright (C) 2005-2006 Andre Noll <maan@systemlinux.org>
+ * Copyright (C) 2005-2013 Andre Noll <maan@systemlinux.org>
*
- * 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 <regex.h>
+#include <sys/types.h>
+
#include "para.h"
#include "string.h"
#include "write.cmdline.h"
#include "list.h"
#include "sched.h"
+#include "ggo.h"
#include "stdin.h"
+#include "buffer_tree.h"
#include "write.h"
#include "write_common.h"
#include "fd.h"
#include "error.h"
+#include "version.h"
+#include "check_wav.h"
INIT_WRITE_ERRLISTS;
-struct check_wav_task {
- char *buf;
- size_t *loaded;
- int *eof;
- unsigned channels;
- unsigned samplerate;
- struct task task;
-};
+static struct write_args_info conf;
-struct initial_delay_task {
- struct timeval start_time;
- struct task task;
-};
+static struct stdin_task sit;
-static struct write_args_info conf;
-struct stdin_task sit;
-struct check_wav_task cwt;
-struct initial_delay_task idt;
-static struct writer_node_group *wng;
+static int loglevel;
+INIT_STDERR_LOGGING(loglevel)
-#define WAV_HEADER_LEN 44
+__noreturn static void print_help_and_die(void)
+{
+ int d = conf.detailed_help_given;
+ const char **p = d? write_args_info_detailed_help
+ : write_args_info_help;
+
+ printf_or_die("%s\n\n", WRITE_CMDLINE_PARSER_PACKAGE "-"
+ WRITE_CMDLINE_PARSER_VERSION);
+ printf_or_die("%s\n\n", write_args_info_usage);
+ for (; *p; p++)
+ printf_or_die("%s\n", *p);
+ print_writer_helps(d);
+ exit(0);
+}
-/**
- * test if audio buffer contains a valid wave header
+/*
+ * Parse config and register a task for a writer node.
+ *
+ * \param arg Command line arguments.
+ * \param parent The new node will be a child of \a parent.
+ * \param wn The writer node.
*
- * \return If not, return -E_NO_WAV_HEADER, otherwise, return zero. If
- * there is less than WAV_HEADER_LEN bytes awailable, return one.
+ * If arg is \p NULL, the OS-dependent default writer is used with no
+ * arguments. The default writers are alsa for Linux, osx for OS X, oss for
+ * *BSD, and the file writer if the default writer is not supported.
+ *
+ * Once the writer configuration has been retrieved from the ->parse_config
+ * callback a writer node is created, its buffer tree node is added to the
+ * buffer tree as a child of the given parent.
+ *
+ * Finally, the new writer node's task structure is initialized and registered
+ * to the paraslash scheduler.
+ *
+ * \return Standard.
*/
-static void check_wav_pre_select(__a_unused struct sched *s, struct task *t)
+static void setup_writer_node(const char *arg, struct btr_node *parent,
+ struct writer_node *wn, struct sched *s)
{
- struct check_wav_task *cwt = t->private_data;
- unsigned char *a;
-
- if (*cwt->loaded < WAV_HEADER_LEN) {
- t->ret = *cwt->eof? -E_PREMATURE_END : 1;
- return;
- }
- cwt->channels = 2;
- cwt->samplerate = 44100;
- a = (unsigned char*)cwt->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->samplerate = 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 = -E_WAV_HEADER_SUCCESS;
- PARA_INFO_LOG("channels: %d, sample rate: %d\n", cwt->channels, cwt->samplerate);
+ wn->conf = check_writer_arg_or_die(arg, &wn->writer_num);
+ register_writer_node(wn, parent, s);
}
-static void initial_delay_pre_select(struct sched *s, struct task *t)
-{
- struct initial_delay_task *idt = t->private_data;
- struct timeval diff;
-
- t->ret = -E_NO_DELAY;
- if (!idt->start_time.tv_sec && !idt->start_time.tv_usec)
- return;
- t->ret = -E_DELAY_TIMEOUT;
- if (tv_diff(now, &idt->start_time, &diff) > 0)
- return;
- t->ret = 1;
- if (tv_diff(&s->timeout , &diff, NULL) > 0)
- s->timeout = diff;
-}
+struct write_task {
+ struct task task;
+ struct check_wav_context *cwc;
+};
-void para_log(int ll, const char* fmt,...)
+static void write_pre_select(struct sched *s, struct task *t)
{
- va_list argp;
-
- if (ll < conf.loglevel_arg)
- return;
- va_start(argp, fmt);
- vfprintf(stderr, fmt, argp);
- va_end(argp);
+ struct write_task *wt = container_of(t, struct write_task, task);
+ check_wav_pre_select(s, wt->cwc);
}
-static struct writer_node_group *check_args(void)
+static void write_post_select(__a_unused struct sched *s, struct task *t)
{
- int i, ret = -E_WRITE_SYNTAX;
- struct writer_node_group *wng = NULL;
-
- if (conf.list_writers_given) {
- char *msg = NULL;
- FOR_EACH_WRITER(i) {
- char *tmp = make_message("%s%s%s",
- i? msg : "",
- i? " " : "",
- writer_names[i]);
- free(msg);
- msg = tmp;
- }
- fprintf(stderr, "%s\n", msg);
- 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",
- &sec, &usec) != 2)
- goto out;
- idt.start_time.tv_sec = sec;
- idt.start_time.tv_usec = usec;
- }
- if (!conf.writer_given) {
- wng = setup_default_wng();
- ret = 1;
- goto out;
- }
- wng = wng_new(conf.writer_given);
- ret = -E_WRITE_SYNTAX;
- for (i = 0; i < conf.writer_given; i++) {
- int writer_num;
- wng->writer_nodes[i].conf = check_writer_arg(
- conf.writer_arg[i], &writer_num);
- if (!wng->writer_nodes[i].conf)
- goto out;
- wng->writer_nodes[i].writer = &writers[writer_num];
- }
- ret = 1;
-out:
- if (ret > 0)
- return wng;
- free(wng);
- return NULL;
+ struct write_task *wt = container_of(t, struct write_task, task);
+ t->error = check_wav_post_select(wt->cwc);
}
-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)
+static int setup_and_schedule(void)
{
- int ret;
+ int i, ret;
+ struct btr_node *cw_btrn;
+ struct writer_node *wns;
+ static struct sched s;
+ struct wav_params wp;
+ struct write_task wt = {
+ .task = {
+ .pre_select = write_pre_select,
+ .post_select = write_post_select,
+ .status = "write task",
+ },
+ };
+
+ loglevel = get_loglevel_by_name(conf.loglevel_arg);
+ sit.btrn = btr_new_node(&(struct btr_node_description)
+ EMBRACE(.name = "stdin"));
+ stdin_set_defaults(&sit);
+ register_task(&s, &sit.task);
- PARA_INFO_LOG("%s\n", PARA_STRERROR(-t->ret));
- unregister_task(t);
- wng->buf = sit.buf;
- wng->loaded = &sit.loaded;
- 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));
- exit(EXIT_FAILURE);
+ COPY_WAV_PARMS(&wp, &conf);
+ wt.cwc = check_wav_init(sit.btrn, NULL, &wp, &cw_btrn);
+ register_task(&s, &wt.task);
+ if (!conf.writer_given) {
+ wns = para_calloc(sizeof(*wns));
+ setup_writer_node(NULL, cw_btrn, wns, &s);
+ i = 1;
+ } else {
+ wns = para_calloc(conf.writer_given * sizeof(*wns));
+ for (i = 0; i < conf.writer_given; i++)
+ setup_writer_node(conf.writer_arg[i], cw_btrn,
+ wns + i, &s);
}
-}
-static void cwt_event_handler(struct task *t)
-{
- if (t->ret != -E_NO_WAV_HEADER && t->ret != -E_WAV_HEADER_SUCCESS) {
- PARA_ERROR_LOG("%s\n", PARA_STRERROR(-t->ret));
- exit(EXIT_FAILURE);
+ s.default_timeout.tv_sec = 10;
+ s.default_timeout.tv_usec = 50000;
+ ret = schedule(&s);
+ if (ret >= 0) {
+ int j;
+ for (j = 0; j < i; j++) {
+ struct task *t = &wns[j].task;
+ assert(t->error < 0);
+ if (t->error != -E_WRITE_COMMON_EOF
+ && t->error != -E_BTR_EOF) {
+ PARA_ERROR_LOG("%s: %s\n", t->status,
+ para_strerror(-t->error));
+ if (ret >= 0)
+ ret = t->error;
+ }
+ }
}
- 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.event_handler = idt_event_handler;
- sprintf(idt.task.status, "initial_delay");
- register_task(&idt.task);
+ for (i--; i >= 0; i--) {
+ struct writer_node *wn = wns + i;
+ struct writer *w = writers + wn->writer_num;
+
+ w->close(wn);
+ btr_remove_node(&wn->btrn);
+ w->free_config(wn->conf);
+ free(wn->conf);
+ }
+ free(wns);
+ check_wav_shutdown(wt.cwc);
+ return ret;
}
+/**
+ * Para_write's main function.
+ *
+ * \param argc The usual argument counter.
+ * \param argv The usual argument vector.
+ *
+ * It sets up and starts the tasks and the buffer tree nodes determined by
+ * command line options.
+ *
+ * \return \p EXIT_SUCCESS or EXIT_FAILURE
+ */
int main(int argc, char *argv[])
{
- int ret = -E_WRITE_SYNTAX;
- struct sched s;
+ int ret;
+ writer_init();
write_cmdline_parser(argc, argv, &conf);
- init_supported_writers();
+ HANDLE_VERSION_FLAG("write", conf);
+ if (conf.help_given || conf.detailed_help_given)
+ print_help_and_die();
- wng = check_args();
- if (!wng)
- goto out;
- 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.event_handler = cwt_event_handler;
- cwt.buf = sit.buf;
- cwt.loaded = &sit.loaded;
- cwt.eof = &sit.eof;
- sprintf(cwt.task.status, "check wav");
- register_task(&cwt.task);
-
- s.default_timeout.tv_sec = 1;
- s.default_timeout.tv_usec = 0;
- ret = sched(&s);
-
-out:
+ ret = setup_and_schedule();
if (ret < 0) {
- PARA_ERROR_LOG("%s\n", PARA_STRERROR(-ret));
- ret = EXIT_FAILURE;
- } else
- ret = EXIT_SUCCESS;
- return ret;
+ PARA_ERROR_LOG("%s\n", para_strerror(-ret));
+ exit(EXIT_FAILURE);
+ }
+ exit(EXIT_SUCCESS);
}