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Diffstat (limited to 'src/decoder/wildmidi_decoder_plugin.c')
-rw-r--r-- | src/decoder/wildmidi_decoder_plugin.c | 147 |
1 files changed, 147 insertions, 0 deletions
diff --git a/src/decoder/wildmidi_decoder_plugin.c b/src/decoder/wildmidi_decoder_plugin.c new file mode 100644 index 000000000..60696fb1a --- /dev/null +++ b/src/decoder/wildmidi_decoder_plugin.c @@ -0,0 +1,147 @@ +/* + * Copyright (C) 2003-2010 The Music Player Daemon Project + * 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., + * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. + */ + +#include "config.h" +#include "decoder_api.h" + +#include <glib.h> + +#include <wildmidi_lib.h> + +#undef G_LOG_DOMAIN +#define G_LOG_DOMAIN "wildmidi" + +enum { + WILDMIDI_SAMPLE_RATE = 48000, +}; + +static bool +wildmidi_init(const struct config_param *param) +{ + const char *config_file; + int ret; + + config_file = config_get_block_string(param, "config_file", + "/etc/timidity/timidity.cfg"); + if (!g_file_test(config_file, G_FILE_TEST_IS_REGULAR)) { + g_debug("configuration file does not exist: %s", config_file); + return false; + } + + ret = WildMidi_Init(config_file, WILDMIDI_SAMPLE_RATE, 0); + return ret == 0; +} + +static void +wildmidi_finish(void) +{ + WildMidi_Shutdown(); +} + +static void +wildmidi_file_decode(struct decoder *decoder, const char *path_fs) +{ + static const struct audio_format audio_format = { + .sample_rate = WILDMIDI_SAMPLE_RATE, + .format = SAMPLE_FORMAT_S16, + .channels = 2, + }; + midi *wm; + const struct _WM_Info *info; + enum decoder_command cmd; + + wm = WildMidi_Open(path_fs); + if (wm == NULL) + return; + + info = WildMidi_GetInfo(wm); + if (info == NULL) { + WildMidi_Close(wm); + return; + } + + decoder_initialized(decoder, &audio_format, true, + info->approx_total_samples / WILDMIDI_SAMPLE_RATE); + + do { + char buffer[4096]; + int len; + + info = WildMidi_GetInfo(wm); + if (info == NULL) + break; + + len = WildMidi_GetOutput(wm, buffer, sizeof(buffer)); + if (len <= 0) + break; + + cmd = decoder_data(decoder, NULL, buffer, len, 0); + + if (cmd == DECODE_COMMAND_SEEK) { + unsigned long seek_where = WILDMIDI_SAMPLE_RATE * + decoder_seek_where(decoder); + + WildMidi_SampledSeek(wm, &seek_where); + decoder_command_finished(decoder); + cmd = DECODE_COMMAND_NONE; + } + + } while (cmd == DECODE_COMMAND_NONE); + + WildMidi_Close(wm); +} + +static struct tag * +wildmidi_tag_dup(const char *path_fs) +{ + midi *wm; + const struct _WM_Info *info; + struct tag *tag; + + wm = WildMidi_Open(path_fs); + if (wm == NULL) + return NULL; + + info = WildMidi_GetInfo(wm); + if (info == NULL) { + WildMidi_Close(wm); + return NULL; + } + + tag = tag_new(); + tag->time = info->approx_total_samples / WILDMIDI_SAMPLE_RATE; + + WildMidi_Close(wm); + + return tag; +} + +static const char *const wildmidi_suffixes[] = { + "mid", + NULL +}; + +const struct decoder_plugin wildmidi_decoder_plugin = { + .name = "wildmidi", + .init = wildmidi_init, + .finish = wildmidi_finish, + .file_decode = wildmidi_file_decode, + .tag_dup = wildmidi_tag_dup, + .suffixes = wildmidi_suffixes, +}; |