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Viewing changes to src/decoder/wildmidi_decoder_plugin.c

  • Committer: Bazaar Package Importer
  • Author(s): Angel Abad
  • Date: 2011-02-02 12:26:30 UTC
  • mfrom: (1.5.11 upstream)
  • Revision ID: james.westby@ubuntu.com-20110202122630-bdyx8w4k94doz4fs
Tags: 0.16.1-1ubuntu1
* Merge from debian unstable. Remaining changes:
  - debian/control:
    + Don't build-depend on libmikmod2-dev (Debian bug #510675).
    + Move avahi-daemon from Suggests field to Recommends field.
  - debian/mpd.init.d:
    + Read mpd user from mpd.conf.
  - debian/control, debian/rules:
    + Add libmp3lame-dev to the build dependencies and enable lame.

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src/decoder/wildmidi_decoder_plugin.c
 
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/*
 
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 * Copyright (C) 2003-2010 The Music Player Daemon Project
 
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 * http://www.musicpd.org
 
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 *
 
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 * This program is free software; you can redistribute it and/or modify
 
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 * it under the terms of the GNU General Public License as published by
 
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 * the Free Software Foundation; either version 2 of the License, or
 
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 * (at your option) any later version.
 
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 *
 
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 * This program is distributed in the hope that it will be useful,
 
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 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 
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 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 
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 * GNU General Public License for more details.
 
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 *
 
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 * You should have received a copy of the GNU General Public License along
 
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 * with this program; if not, write to the Free Software Foundation, Inc.,
 
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 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 
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 */
 
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#include "config.h"
 
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#include "decoder_api.h"
 
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#include <glib.h>
 
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#include <wildmidi_lib.h>
 
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#undef G_LOG_DOMAIN
 
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#define G_LOG_DOMAIN "wildmidi"
 
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enum {
 
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        WILDMIDI_SAMPLE_RATE = 48000,
 
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};
 
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static bool
 
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wildmidi_init(const struct config_param *param)
 
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{
 
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        const char *config_file;
 
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        int ret;
 
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        config_file = config_get_block_string(param, "config_file",
 
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                                              "/etc/timidity/timidity.cfg");
 
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        if (!g_file_test(config_file, G_FILE_TEST_IS_REGULAR)) {
 
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                g_debug("configuration file does not exist: %s", config_file);
 
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                return false;
 
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        }
 
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        ret = WildMidi_Init(config_file, WILDMIDI_SAMPLE_RATE, 0);
 
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        return ret == 0;
 
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}
 
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static void
 
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wildmidi_finish(void)
 
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{
 
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        WildMidi_Shutdown();
 
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}
 
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static void
 
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wildmidi_file_decode(struct decoder *decoder, const char *path_fs)
 
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{
 
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        static const struct audio_format audio_format = {
 
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                .sample_rate = WILDMIDI_SAMPLE_RATE,
 
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                .format = SAMPLE_FORMAT_S16,
 
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                .channels = 2,
 
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        };
 
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        midi *wm;
 
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        const struct _WM_Info *info;
 
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        enum decoder_command cmd;
 
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        wm = WildMidi_Open(path_fs);
 
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        if (wm == NULL)
 
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                return;
 
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        info = WildMidi_GetInfo(wm);
 
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        if (info == NULL) {
 
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                WildMidi_Close(wm);
 
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                return;
 
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        }
 
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        decoder_initialized(decoder, &audio_format, true,
 
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                            info->approx_total_samples / WILDMIDI_SAMPLE_RATE);
 
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        do {
 
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                char buffer[4096];
 
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                int len;
 
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                info = WildMidi_GetInfo(wm);
 
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                if (info == NULL)
 
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                        break;
 
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                len = WildMidi_GetOutput(wm, buffer, sizeof(buffer));
 
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                if (len <= 0)
 
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                        break;
 
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                cmd = decoder_data(decoder, NULL, buffer, len, 0);
 
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                if (cmd == DECODE_COMMAND_SEEK) {
 
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                        unsigned long seek_where = WILDMIDI_SAMPLE_RATE *
 
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                                decoder_seek_where(decoder);
 
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#ifdef HAVE_WILDMIDI_SAMPLED_SEEK
 
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                        WildMidi_SampledSeek(wm, &seek_where);
 
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#else
 
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                        WildMidi_FastSeek(wm, &seek_where);
 
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#endif
 
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                        decoder_command_finished(decoder);
 
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                        cmd = DECODE_COMMAND_NONE;
 
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                }
 
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        } while (cmd == DECODE_COMMAND_NONE);
 
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        WildMidi_Close(wm);
 
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}
 
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static struct tag *
 
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wildmidi_tag_dup(const char *path_fs)
 
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{
 
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        midi *wm = WildMidi_Open(path_fs);
 
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        if (wm == NULL)
 
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                return NULL;
 
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        const struct _WM_Info *info = WildMidi_GetInfo(wm);
 
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        if (info == NULL) {
 
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                WildMidi_Close(wm);
 
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                return NULL;
 
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        }
 
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        struct tag *tag = tag_new();
 
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        tag->time = info->approx_total_samples / WILDMIDI_SAMPLE_RATE;
 
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        WildMidi_Close(wm);
 
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        return tag;
 
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}
 
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static const char *const wildmidi_suffixes[] = {
 
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        "mid",
 
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        NULL
 
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};
 
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const struct decoder_plugin wildmidi_decoder_plugin = {
 
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        .name = "wildmidi",
 
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        .init = wildmidi_init,
 
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        .finish = wildmidi_finish,
 
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        .file_decode = wildmidi_file_decode,
 
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        .tag_dup = wildmidi_tag_dup,
 
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        .suffixes = wildmidi_suffixes,
 
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};