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/* the Music Player Daemon (MPD)
* Copyright (C) 2003-2007 by Warren Dukes (warren.dukes@gmail.com)
* Copyright (C) 2008 Max Kellermann <max@duempel.org>
* This project's homepage is: http://www.musicpd.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 02111-1307 USA
*/
#include "decoder_thread.h"
#include "decoder_control.h"
#include "decoder_internal.h"
#include "player_control.h"
#include "song.h"
#include "path.h"
#include "log.h"
#include "ls.h"
static void decodeStart(void)
{
struct decoder decoder;
int ret;
bool close_instream = true;
InputStream inStream;
struct decoder_plugin *plugin = NULL;
char path_max_fs[MPD_PATH_MAX];
char path_max_utf8[MPD_PATH_MAX];
song_get_url(dc.next_song, path_max_utf8);
if (!isRemoteUrl(path_max_utf8)) {
rmp2amp_r(path_max_fs,
utf8_to_fs_charset(path_max_fs, path_max_utf8));
} else
pathcpy_trunc(path_max_fs, path_max_utf8);
dc.current_song = dc.next_song; /* NEED LOCK */
if (openInputStream(&inStream, path_max_fs) < 0) {
dc.error = DECODE_ERROR_FILE;
goto stop_no_close;
}
decoder.seeking = false;
dc.state = DECODE_STATE_START;
dc.command = DECODE_COMMAND_NONE;
/* wait for the input stream to become ready; its metadata
will be available then */
while (!inStream.ready) {
if (dc.command != DECODE_COMMAND_NONE)
goto stop;
ret = bufferInputStream(&inStream);
if (ret < 0)
goto stop;
}
/* for http streams, seekable is determined in bufferInputStream */
dc.seekable = inStream.seekable;
if (dc.command == DECODE_COMMAND_STOP)
goto stop;
ret = DECODE_ERROR_UNKTYPE;
if (isRemoteUrl(path_max_utf8)) {
unsigned int next = 0;
/* first we try mime types: */
while (ret && (plugin = decoder_plugin_from_mime_type(inStream.mime, next++))) {
if (plugin->stream_decode == NULL)
continue;
if (!(plugin->stream_types & INPUT_PLUGIN_STREAM_URL))
continue;
if (plugin->try_decode != NULL
&& !plugin->try_decode(&inStream))
continue;
ret = plugin->stream_decode(&decoder, &inStream);
break;
}
/* if that fails, try suffix matching the URL: */
if (plugin == NULL) {
const char *s = getSuffix(path_max_utf8);
next = 0;
while (ret && (plugin = decoder_plugin_from_suffix(s, next++))) {
if (plugin->stream_decode == NULL)
continue;
if (!(plugin->stream_types &
INPUT_PLUGIN_STREAM_URL))
continue;
if (plugin->try_decode != NULL &&
!plugin->try_decode(&inStream))
continue;
decoder.plugin = plugin;
ret = plugin->stream_decode(&decoder,
&inStream);
break;
}
}
/* fallback to mp3: */
/* this is needed for bastard streams that don't have a suffix
or set the mimeType */
if (plugin == NULL) {
/* we already know our mp3Plugin supports streams, no
* need to check for stream{Types,DecodeFunc} */
if ((plugin = decoder_plugin_from_name("mp3"))) {
decoder.plugin = plugin;
ret = plugin->stream_decode(&decoder,
&inStream);
}
}
} else {
unsigned int next = 0;
const char *s = getSuffix(path_max_utf8);
while (ret && (plugin = decoder_plugin_from_suffix(s, next++))) {
if (!plugin->stream_types & INPUT_PLUGIN_STREAM_FILE)
continue;
if (plugin->try_decode != NULL &&
!plugin->try_decode(&inStream))
continue;
if (plugin->file_decode != NULL) {
closeInputStream(&inStream);
close_instream = false;
decoder.plugin = plugin;
ret = plugin->file_decode(&decoder,
path_max_fs);
break;
} else if (plugin->stream_decode != NULL) {
decoder.plugin = plugin;
ret = plugin->stream_decode(&decoder,
&inStream);
break;
}
}
}
if (ret < 0 || ret == DECODE_ERROR_UNKTYPE) {
if (ret != DECODE_ERROR_UNKTYPE)
dc.error = DECODE_ERROR_FILE;
else
dc.error = DECODE_ERROR_UNKTYPE;
}
stop:
if (close_instream)
closeInputStream(&inStream);
stop_no_close:
dc.state = DECODE_STATE_STOP;
dc.command = DECODE_COMMAND_NONE;
}
static void * decoder_task(mpd_unused void *arg)
{
while (1) {
assert(dc.state == DECODE_STATE_STOP);
if (dc.command == DECODE_COMMAND_START ||
dc.command == DECODE_COMMAND_SEEK) {
decodeStart();
} else if (dc.command == DECODE_COMMAND_STOP) {
dc.command = DECODE_COMMAND_NONE;
notify_signal(&pc.notify);
} else {
notify_wait(&dc.notify);
notify_signal(&pc.notify);
}
}
return NULL;
}
void decoder_thread_start(void)
{
pthread_attr_t attr;
pthread_t decoder_thread;
pthread_attr_init(&attr);
pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED);
if (pthread_create(&decoder_thread, &attr, decoder_task, NULL))
FATAL("Failed to spawn decoder task: %s\n", strerror(errno));
}
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