/*
- * Copyright (C) 2005-2006 Andre Noll <maan@systemlinux.org>
+ * Copyright (C) 2012 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.
*/
-/*
- * Based in parts on aplay.c from the alsa-utils-1.0.8 package,
- * Copyright (c) by Jaroslav Kysela <perex@suse.cz>, which is
- * based on the vplay program by Michael Beck.
- */
+/** \file play.c Paraslash's standalone player. */
+
+#include <regex.h>
-#define WAV_HEADER_LEN 44
-#include <sys/time.h> /* gettimeofday */
#include "para.h"
-#include "fd.h"
+#include "list.h"
#include "play.cmdline.h"
-#include <alsa/asoundlib.h>
-
-enum { E_BROKEN_CONF, /* Broken configuration for this PCM */
- E_ACCESS_TYPE, /* Access type not available */
- E_SAMPLE_FORMAT, /* Sample format not available */
- E_CHANNEL_COUNT, /* Channels count not available */
- E_HW_PARAMS, /* Unable to install hw params */
- E_SW_PARAMS, /* Unable to install sw params */
- E_BAD_PERIOD, /* Can't use period equal to buffer size */
- E_GET_XFER, /* Unable to obtain xfer align */
- E_SET_XFER, /* snd_pcm_sw_params_set_xfer_align failed */
- E_MEM, /* not enough memory */
- E_READ, /* read error */
- E_WRITE, /* write error */
- E_PIPE, /* write to pipe with other side closed */
- E_PCM_OPEN, /* unable to open pcm */
- E_SND_PCM_INFO, /* pcm info error */
- E_GET_BUFFER_TIME, /* snd_pcm_hw_params_get_buffer_time_max failed */
- E_SET_BUFFER_TIME, /* snd_pcm_hw_params_set_buffer_time_near failed */
- E_SET_RATE, /* snd_pcm_hw_params_set_rate_near failed */
- E_START_THRESHOLD, /* snd_pcm_sw_params_set_start_threshold failed */
- E_STOP_THRESHOLD, /* snd_pcm_sw_params_set_stop_threshold failed */
- E_LOG, /* snd_output_stdio_attach failed */
- E_SYNTAX /* could not parse start_time option */
-};
-
-#define FORMAT SND_PCM_FORMAT_S16_LE
-
-#define EXIT(EXP) \
-do { if (EXP) \
- fprintf (stderr, "error: " #EXP "\n"); exit(EXP);} \
-while (0)
-
-static snd_pcm_t *handle;
-static snd_pcm_uframes_t chunk_size;
-static unsigned char *audiobuf;
-static size_t bytes_per_frame;
-static struct timeval *start_time;
-static struct gengetopt_args_info conf;
-
-void para_log(__a_unused int ll, const char* fmt,...)
-{
- va_list argp;
-
- va_start(argp, fmt);
- vfprintf(stderr, fmt, argp);
- va_end(argp);
-}
-
-/*
- * read_wav_header - read WAV_HEADER_LEN bytes from stdin to audio buffer
- *
- * Exit on errors and on eof before WAV_HEADER_LEN could be read.
- */
-static void read_wav_header(void)
-{
- ssize_t ret, count = 0;
-
- while (count < WAV_HEADER_LEN) {
- ret = read(STDIN_FILENO, audiobuf + count, WAV_HEADER_LEN - count);
- if (ret <= 0)
- EXIT(E_READ);
- count += ret;
- }
-}
-
-/*
- * open and prepare the PCM handle for writing
- *
- * Install PCM software and hardware configuration. Exit on errors.
- */
-static void alsa_init(void)
-{
- snd_pcm_hw_params_t *hwparams;
- snd_pcm_sw_params_t *swparams;
- snd_pcm_uframes_t buffer_size, xfer_align, start_threshold,
- stop_threshold;
- unsigned buffer_time = 0;
- int err;
- snd_pcm_info_t *info;
- snd_output_t *log;
-
- snd_pcm_info_alloca(&info);
- if (snd_output_stdio_attach(&log, stderr, 0) < 0)
- EXIT(E_LOG);
- err = snd_pcm_open(&handle, conf.device_arg,
- SND_PCM_STREAM_PLAYBACK, 0);
- if (err < 0)
- EXIT(E_PCM_OPEN);
- if ((err = snd_pcm_info(handle, info)) < 0)
- EXIT(E_SND_PCM_INFO);
+#include "filter.cmdline.h"
+#include "error.h"
+#include "ggo.h"
+#include "buffer_tree.h"
+#include "version.h"
+#include "string.h"
+#include "sched.h"
+#include "filter.h"
+#include "afh.h"
+#include "recv.h"
+#include "write.h"
+#include "write_common.h"
+#include "fd.h"
- snd_pcm_hw_params_alloca(&hwparams);
- snd_pcm_sw_params_alloca(&swparams);
- if (snd_pcm_hw_params_any(handle, hwparams) < 0)
- EXIT(E_BROKEN_CONF);
- if (snd_pcm_hw_params_set_access(handle, hwparams,
- SND_PCM_ACCESS_RW_INTERLEAVED) < 0)
- EXIT(E_ACCESS_TYPE);
- if (snd_pcm_hw_params_set_format(handle, hwparams, FORMAT) < 0)
- EXIT(E_SAMPLE_FORMAT);
- if (snd_pcm_hw_params_set_channels(handle, hwparams, conf.channels_arg) < 0)
- EXIT(E_CHANNEL_COUNT);
- if (snd_pcm_hw_params_set_rate_near(handle, hwparams,
- (unsigned int*) &conf.sample_rate_arg, 0) < 0)
- EXIT(E_SET_RATE);
- err = snd_pcm_hw_params_get_buffer_time_max(hwparams, &buffer_time, 0);
- if (err < 0 || !buffer_time)
- EXIT(E_GET_BUFFER_TIME);
- PARA_DEBUG_LOG("buffer time: %d\n", buffer_time);
- if (snd_pcm_hw_params_set_buffer_time_near(handle, hwparams,
- &buffer_time, 0) < 0)
- EXIT(E_SET_BUFFER_TIME);
- if (snd_pcm_hw_params(handle, hwparams) < 0)
- EXIT(E_HW_PARAMS);
- snd_pcm_hw_params_get_period_size(hwparams, &chunk_size, 0);
- snd_pcm_hw_params_get_buffer_size(hwparams, &buffer_size);
- PARA_DEBUG_LOG("buffer size: %lu, period_size: %lu\n", buffer_size, chunk_size);
- if (chunk_size == buffer_size)
- EXIT(E_BAD_PERIOD);
- snd_pcm_sw_params_current(handle, swparams);
- err = snd_pcm_sw_params_get_xfer_align(swparams, &xfer_align);
- if (err < 0 || !xfer_align)
- EXIT(E_GET_XFER);
-// snd_pcm_sw_params_set_sleep_min(handle, swparams, 0);
- snd_pcm_sw_params_set_avail_min(handle, swparams, chunk_size);
- /* round to closest transfer boundary */
- start_threshold = (buffer_size / xfer_align) * xfer_align;
- if (start_threshold < 1)
- start_threshold = 1;
- if (snd_pcm_sw_params_set_start_threshold(handle, swparams,
- start_threshold) < 0)
- EXIT(E_START_THRESHOLD);
- stop_threshold = buffer_size;
- if (snd_pcm_sw_params_set_stop_threshold(handle, swparams,
- stop_threshold) < 0)
- EXIT(E_STOP_THRESHOLD);
- if (snd_pcm_sw_params_set_xfer_align(handle, swparams, xfer_align) < 0)
- EXIT(E_SET_XFER);
- if (snd_pcm_sw_params(handle, swparams) < 0)
- EXIT(E_SW_PARAMS);
- bytes_per_frame = snd_pcm_format_physical_width(FORMAT) * conf.channels_arg / 8;
-}
+static struct play_args_info conf;
-/**
- * push out pcm frames
- * \param data pointer do data to be written
- * \param nbytes number of bytes (not frames)
- *
- * \return Number of bytes written. Exit on errors.
- */
-int alsa_write(u_char *data, size_t nbytes)
-{
- size_t count = nbytes / bytes_per_frame;
- snd_pcm_sframes_t r, result = 0;
- while (count > 0) {
- /* write interleaved frames */
- r = snd_pcm_writei(handle, data, count);
- if (r < 0)
- PARA_ERROR_LOG("write error: %s\n", snd_strerror(r));
- if (r == -EAGAIN || (r >= 0 && r < count))
- snd_pcm_wait(handle, 1);
- else if (r == -EPIPE)
- snd_pcm_prepare(handle);
- else if (r < 0)
- EXIT(E_WRITE);
- if (r > 0) {
- result += r;
- count -= r;
- data += r * bytes_per_frame;
- }
- }
- return result * bytes_per_frame;
-}
+/** Initialize the array of errors for para_play. */
+INIT_PLAY_ERRLISTS;
-void alsa_shutdown(void)
-{
- snd_pcm_drain(handle);
- snd_pcm_close(handle);
- snd_config_update_free_global();
-}
+/* Activate the afh receiver. */
+extern void afh_recv_init(struct receiver *r);
+#undef AFH_RECEIVER
+#define AFH_RECEIVER {.name = "afh", .init = afh_recv_init},
+DEFINE_RECEIVER_ARRAY;
-/*
- * start_time_in_future - check if current time is later than start_time
- * \param diff pointer to write remaining time to
- *
- * If start_time was not given, or current time is later than given
- * start_time, return 0. Otherwise, return 1 and write the time
- * difference between current time and start_time to diff. diff may be
- * NULL.
- *
- */
-static int start_time_in_future(struct timeval *diff)
-{
- struct timeval now;
+/* FIXME: This is needed by the amp filter. */
+char *stat_item_values[NUM_STAT_ITEMS] = {NULL};
- if (!conf.start_time_given)
- return 0;
- gettimeofday(&now, NULL);
- return tv_diff(start_time, &now, diff) > 0? 1 : 0;
-}
+static int loglevel = LL_WARNING;
+INIT_STDERR_LOGGING(loglevel);
-/*
- * do_initial_delay - sleep until time given at command line
- *
- * This is called if the initial buffer is filled. It returns
- * immediately if no start_time was given at the command line
- * or if the given start time is in the past.
- *
- */
-static void do_initial_delay(struct timeval *delay)
+__noreturn static void print_help_and_die(void)
{
- do
- para_select(1, NULL, NULL, delay);
- while (start_time_in_future(delay));
+ int d = conf.detailed_help_given;
+ const char **p = d? play_args_info_detailed_help
+ : play_args_info_help;
+
+ printf_or_die("%s\n\n", PLAY_CMDLINE_PARSER_PACKAGE "-"
+ PLAY_CMDLINE_PARSER_VERSION);
+ printf_or_die("%s\n\n", play_args_info_usage);
+ for (; *p; p++)
+ printf_or_die("%s\n", *p);
+ print_filter_helps(d);
+ print_writer_helps(d);
+ exit(0);
}
-/*
- * play_pcm - play raw pcm data
- * \param loaded number of bytes already loaded
- *
- * If start_time was given, prebuffer data until buffer is full or
- * start_time is reached. In any case, do not start playing before
- * start_time.
- */
-static void play_pcm(size_t loaded)
+static void parse_config_or_die(int argc, char *argv[])
{
- size_t chunk_bytes, bufsize, written = 0, prebuf_size;
- ssize_t ret;
- unsigned char *p;
- struct timeval delay;
-
- alsa_init();
- chunk_bytes = chunk_size * bytes_per_frame;
- bufsize = (conf.bufsize_arg * 1024 / chunk_bytes) * chunk_bytes;
- audiobuf = realloc(audiobuf, bufsize);
- if (!audiobuf)
- EXIT(E_MEM);
- prebuf_size = conf.prebuffer_arg * bufsize / 100;
-again:
- if (!written) {
- if (loaded < prebuf_size)
- goto read;
- if (start_time && start_time_in_future(&delay)) {
- do_initial_delay(&delay);
- start_time = NULL;
- }
+ int ret;
+ char *config_file;
+ struct play_cmdline_parser_params params = {
+ .override = 0,
+ .initialize = 1,
+ .check_required = 0,
+ .check_ambiguity = 0,
+ .print_errors = 1
+ };
+
+ if (play_cmdline_parser_ext(argc, argv, &conf, ¶ms))
+ exit(EXIT_FAILURE);
+ HANDLE_VERSION_FLAG("play", conf);
+ if (conf.help_given || conf.detailed_help_given)
+ print_help_and_die();
+ loglevel = get_loglevel_by_name(conf.loglevel_arg);
+ if (conf.config_file_given)
+ config_file = para_strdup(conf.config_file_arg);
+ else {
+ char *home = para_homedir();
+ config_file = make_message("%s/.paraslash/play.conf", home);
+ free(home);
}
- p = audiobuf;
- while (loaded >= chunk_bytes) {
- ret = alsa_write(p, chunk_bytes);
- p += ret;
- written += ret;
- loaded -= ret;
+ ret = file_exists(config_file);
+ if (conf.config_file_given && !ret) {
+ PARA_EMERG_LOG("can not read config file %s\n", config_file);
+ goto err;
}
- if (loaded && p != audiobuf)
- memmove(audiobuf, p, loaded);
-read:
- ret = read(STDIN_FILENO, audiobuf + loaded, bufsize - loaded);
- if (ret < 0)
- EXIT(E_READ);
if (ret) {
- loaded += ret;
- goto again;
+ params.initialize = 0;
+ params.check_required = 1;
+ play_cmdline_parser_config_file(config_file, &conf, ¶ms);
}
- alsa_shutdown();
-}
-
-/*
- * check_wave - test if audio buffer contains a valid wave header
- *
- * If not, return 0, otherwise, store number of channels and sample rate
- * in struct conf and return WAV_HEADER_LEN.
- */
-static size_t check_wave(void)
-{
- unsigned char *a = audiobuf;
- if (a[0] != 'R' || a[1] != 'I' || a[2] != 'F' || a[3] != 'F')
- return WAV_HEADER_LEN;
- conf.channels_arg = (unsigned) a[22];
- conf.sample_rate_arg = a[24] + (a[25] << 8) + (a[26] << 16) + (a[27] << 24);
- return 0;
+ free(config_file);
+ return;
+err:
+ free(config_file);
+ exit(EXIT_FAILURE);
}
int main(int argc, char *argv[])
{
- struct timeval tv;
+ /* needed this early to make help work */
+ recv_init();
+ filter_init();
+ writer_init();
- cmdline_parser(argc, argv, &conf);
- if (conf.start_time_given) {
- if (sscanf(conf.start_time_arg, "%lu:%lu",
- &tv.tv_sec, &tv.tv_usec) != 2)
- EXIT(E_SYNTAX);
- start_time = &tv;
- }
- audiobuf = malloc(WAV_HEADER_LEN);
- read_wav_header();
- play_pcm(check_wave());
- free(audiobuf);
- return EXIT_SUCCESS;
+ parse_config_or_die(argc, argv);
+ return 0;
}
projects / paraslash.git / blobdiff