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Viewing changes to src/decoder/AdPlugDecoderPlugin.cxx

  • Committer: Package Import Robot
  • Author(s): Steve Kowalik
  • Date: 2013-11-12 18:17:40 UTC
  • mfrom: (2.2.36 sid)
  • Revision ID: package-import@ubuntu.com-20131112181740-72aa4zihehoobedp
Tags: 0.18.3-1ubuntu1
* Merge from Debian unstable.  Remaining changes:
  - Add libmp3lame-dev to Build-Depends, and enable LAME.
  - Read the user for the daemon from the config file in the init script.
  - Move avahi-daemon from Suggests to Recommends.
  - Added apport hook to include user configuration file.

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src/decoder/AdPlugDecoderPlugin.cxx
 
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/*
 
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 * Copyright (C) 2003-2013 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 "AdPlugDecoderPlugin.h"
 
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#include "tag/TagHandler.hxx"
 
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#include "DecoderAPI.hxx"
 
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#include "CheckAudioFormat.hxx"
 
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#include "util/Error.hxx"
 
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#include "util/Macros.hxx"
 
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#include "Log.hxx"
 
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#include <adplug/adplug.h>
 
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#include <adplug/emuopl.h>
 
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#include <assert.h>
 
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static unsigned sample_rate;
 
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static bool
 
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adplug_init(const config_param &param)
 
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{
 
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        Error error;
 
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        sample_rate = param.GetBlockValue("sample_rate", 48000u);
 
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        if (!audio_check_sample_rate(sample_rate, error)) {
 
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                LogError(error);
 
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                return false;
 
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        }
 
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        return true;
 
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}
 
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static void
 
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adplug_file_decode(Decoder &decoder, const char *path_fs)
 
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{
 
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        CEmuopl opl(sample_rate, true, true);
 
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        opl.init();
 
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        CPlayer *player = CAdPlug::factory(path_fs, &opl);
 
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        if (player == nullptr)
 
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                return;
 
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        const AudioFormat audio_format(sample_rate, SampleFormat::S16, 2);
 
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        assert(audio_format.IsValid());
 
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        decoder_initialized(decoder, audio_format, false,
 
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                player->songlength() / 1000.);
 
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        int16_t buffer[2048];
 
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        const unsigned frames_per_buffer = ARRAY_SIZE(buffer) / 2;
 
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        DecoderCommand cmd;
 
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        do {
 
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                if (!player->update())
 
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                        break;
 
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                opl.update(buffer, frames_per_buffer);
 
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                cmd = decoder_data(decoder, nullptr,
 
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                                   buffer, sizeof(buffer),
 
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                                   0);
 
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        } while (cmd == DecoderCommand::NONE);
 
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        delete player;
 
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}
 
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static void
 
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adplug_scan_tag(TagType type, const std::string &value,
 
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                const struct tag_handler *handler, void *handler_ctx)
 
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{
 
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        if (!value.empty())
 
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                tag_handler_invoke_tag(handler, handler_ctx,
 
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                                       type, value.c_str());
 
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}
 
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static bool
 
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adplug_scan_file(const char *path_fs,
 
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                 const struct tag_handler *handler, void *handler_ctx)
 
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{
 
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        CEmuopl opl(sample_rate, true, true);
 
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        opl.init();
 
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        CPlayer *player = CAdPlug::factory(path_fs, &opl);
 
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        if (player == nullptr)
 
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                return false;
 
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        tag_handler_invoke_duration(handler, handler_ctx,
 
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                                    player->songlength() / 1000);
 
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        if (handler->tag != nullptr) {
 
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                adplug_scan_tag(TAG_TITLE, player->gettitle(),
 
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                                handler, handler_ctx);
 
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                adplug_scan_tag(TAG_ARTIST, player->getauthor(),
 
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                                handler, handler_ctx);
 
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                adplug_scan_tag(TAG_COMMENT, player->getdesc(),
 
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                                handler, handler_ctx);
 
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        }
 
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        delete player;
 
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        return true;
 
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}
 
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static const char *const adplug_suffixes[] = {
 
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        "amd",
 
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        "d00",
 
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        "hsc",
 
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        "laa",
 
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        "rad",
 
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        "raw",
 
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        "sa2",
 
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        nullptr
 
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};
 
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const struct DecoderPlugin adplug_decoder_plugin = {
 
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        "adplug",
 
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        adplug_init,
 
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        nullptr,
 
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        nullptr,
 
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        adplug_file_decode,
 
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        adplug_scan_file,
 
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        nullptr,
 
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        nullptr,
 
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        adplug_suffixes,
 
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        nullptr,
 
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};