aac_afh.c: Fix serious memory leak.
[paraslash.git] / write.c
diff --git a/write.c b/write.c
index 498dd78..64c08d8 100644 (file)
--- a/write.c
+++ b/write.c
@@ -1,21 +1,11 @@
 /*
- * 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
- *     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 "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 write_args_info conf;
-struct stdin_task sit;
-struct check_wav_task cwt;
-struct initial_delay_task idt;
+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
 
 /**
@@ -59,58 +64,49 @@ static struct writer_node_group *wng;
  */
 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(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;
@@ -126,8 +122,6 @@ 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",
@@ -137,25 +131,25 @@ 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++) {
                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];
+               g->writer_nodes[i].writer = &writers[writer_num];
        }
        ret = 1;
 out:
        if (ret > 0)
-               return wng;
-       free(wng);
+               return g;
+       free(g);
        return NULL;
 }
 
@@ -207,12 +201,24 @@ static void cwt_event_handler(struct task *t)
        register_task(&idt.task);
 }
 
+/**
+ * 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;
 
        write_cmdline_parser(argc, argv, &conf);
+       HANDLE_VERSION_FLAG("write", conf);
        init_supported_writers();
 
        wng = check_args();