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authorMax Kellermann <max@duempel.org>2013-07-28 13:18:48 +0200
committerMax Kellermann <max@duempel.org>2013-07-28 13:18:48 +0200
commit43f613d9be9aa2953dcfc0aacfbdfb56d5d1a708 (patch)
tree70cd76be89e7aa8c7e92690eeabb331d31abf346 /src/decoder_api.h
parent2277d143fa4e407bffa9cb169820c9612ebae7a0 (diff)
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decoder_api: convert to C++
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-/*
- * Copyright (C) 2003-2011 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.
- */
-
-/*! \file
- * \brief The MPD Decoder API
- *
- * This is the public API which is used by decoder plugins to
- * communicate with the mpd core.
- */
-
-#ifndef MPD_DECODER_API_H
-#define MPD_DECODER_API_H
-
-#include "check.h"
-#include "decoder_command.h"
-#include "decoder_plugin.h"
-#include "input_stream.h"
-#include "replay_gain_info.h"
-#include "tag.h"
-#include "audio_format.h"
-#include "conf.h"
-
-#include <stdbool.h>
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-/**
- * Notify the player thread that it has finished initialization and
- * that it has read the song's meta data.
- *
- * @param decoder the decoder object
- * @param audio_format the audio format which is going to be sent to
- * decoder_data()
- * @param seekable true if the song is seekable
- * @param total_time the total number of seconds in this song; -1 if unknown
- */
-void
-decoder_initialized(struct decoder *decoder,
- const struct audio_format *audio_format,
- bool seekable, float total_time);
-
-/**
- * Determines the pending decoder command.
- *
- * @param decoder the decoder object
- * @return the current command, or DECODE_COMMAND_NONE if there is no
- * command pending
- */
-enum decoder_command
-decoder_get_command(struct decoder *decoder);
-
-/**
- * Called by the decoder when it has performed the requested command
- * (dc->command). This function resets dc->command and wakes up the
- * player thread.
- *
- * @param decoder the decoder object
- */
-void
-decoder_command_finished(struct decoder *decoder);
-
-/**
- * Call this when you have received the DECODE_COMMAND_SEEK command.
- *
- * @param decoder the decoder object
- * @return the destination position for the week
- */
-double
-decoder_seek_where(struct decoder *decoder);
-
-/**
- * Call this instead of decoder_command_finished() when seeking has
- * failed.
- *
- * @param decoder the decoder object
- */
-void
-decoder_seek_error(struct decoder *decoder);
-
-/**
- * Blocking read from the input stream.
- *
- * @param decoder the decoder object
- * @param is the input stream to read from
- * @param buffer the destination buffer
- * @param length the maximum number of bytes to read
- * @return the number of bytes read, or 0 if one of the following
- * occurs: end of file; error; command (like SEEK or STOP).
- */
-size_t
-decoder_read(struct decoder *decoder, struct input_stream *is,
- void *buffer, size_t length);
-
-/**
- * Sets the time stamp for the next data chunk [seconds]. The MPD
- * core automatically counts it up, and a decoder plugin only needs to
- * use this function if it thinks that adding to the time stamp based
- * on the buffer size won't work.
- */
-void
-decoder_timestamp(struct decoder *decoder, double t);
-
-/**
- * This function is called by the decoder plugin when it has
- * successfully decoded block of input data.
- *
- * @param decoder the decoder object
- * @param is an input stream which is buffering while we are waiting
- * for the player
- * @param data the source buffer
- * @param length the number of bytes in the buffer
- * @return the current command, or DECODE_COMMAND_NONE if there is no
- * command pending
- */
-enum decoder_command
-decoder_data(struct decoder *decoder, struct input_stream *is,
- const void *data, size_t length,
- uint16_t kbit_rate);
-
-/**
- * This function is called by the decoder plugin when it has
- * successfully decoded a tag.
- *
- * @param decoder the decoder object
- * @param is an input stream which is buffering while we are waiting
- * for the player
- * @param tag the tag to send
- * @return the current command, or DECODE_COMMAND_NONE if there is no
- * command pending
- */
-enum decoder_command
-decoder_tag(struct decoder *decoder, struct input_stream *is,
- const struct tag *tag);
-
-/**
- * Set replay gain values for the following chunks.
- *
- * @param decoder the decoder object
- * @param rgi the replay_gain_info object; may be NULL to invalidate
- * the previous replay gain values
- */
-void
-decoder_replay_gain(struct decoder *decoder,
- const struct replay_gain_info *replay_gain_info);
-
-/**
- * Store MixRamp tags.
- *
- * @param decoder the decoder object
- * @param mixramp_start the mixramp_start tag; may be NULL to invalidate
- * @param mixramp_end the mixramp_end tag; may be NULL to invalidate
- */
-void
-decoder_mixramp(struct decoder *decoder,
- char *mixramp_start, char *mixramp_end);
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif