/*
- * Copyright (C) 2005-2006 Andre Noll <maan@systemlinux.org>
+ * Copyright (C) 2005-2007 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
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
*/
+/** \file write.c Paraslash's standalone wav/raw player */
+
#include "para.h"
#include "string.h"
#include "write.cmdline.h"
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;
+ /** 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;
};
-static 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
/**
*/
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;
}
- cwt->channels = 2;
- cwt->samplerate = 44100;
- 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->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);
+ 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", cwt->channels, cwt->samplerate);
+ 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;
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 = -E_DELAY_TIMEOUT;
- if (tv_diff(&s->now, &idt->start_time, &diff) > 0)
+ 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;
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",
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++) {
int writer_num;
- wng->writer_nodes[i].conf = check_writer_arg(
+ g->writer_nodes[i].conf = check_writer_arg(
conf.writer_arg[i], &writer_num);
- if (!wng->writer_nodes[i].conf)
+ if (!g->writer_nodes[i].conf)
goto out;
- wng->writer_nodes[i].writer = &writers[writer_num];
- sprintf(wng->writer_nodes[i].task.status, "%s",
- writer_names[writer_num]);
+ g->writer_nodes[i].writer = &writers[writer_num];
}
ret = 1;
out:
if (ret > 0)
- return wng;
- free(wng);
+ return g;
+ free(g);
return NULL;
}
PARA_INFO_LOG("%s\n", PARA_STRERROR(-t->ret));
unregister_task(t);
wng_close(g);
- wng_destroy(g);
}
register_task(&idt.task);
}
+/**
+ * para_write's main function
+ *
+ * It registers the stdin task, the check_wav_task, the task for initial delay
+ * and all tasks for actually writing out the stream.
+ *
+ */
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();
- init_sched();
wng = check_args();
if (!wng)
projects / paraslash.git / blobdiff