/*
 * 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.
 */

#include "config.h"
#include "chunk.h"
#include "audio_format.h"
#include "tag.h"

#include <libavutil/frame.h>
#include <libavutil/mem.h>
#include <libavutil/samplefmt.h>

#include <assert.h>

void
music_chunk_init(struct music_chunk *chunk)
{
	chunk->other = NULL;
	chunk->frame = NULL;
	chunk->tag = NULL;
	chunk->replay_gain_serial = 0;
#ifndef NDEBUG
    chunk->audio_format.format = AV_SAMPLE_FMT_NONE;
#endif
}

struct music_chunk *music_chunk_alloc(void)
{
    struct music_chunk *ret = av_mallocz(sizeof(*ret));

    if (!ret)
        return NULL;

    music_chunk_init(ret);
    return ret;
}

void music_chunk_free(struct music_chunk *chunk)
{
    if (!chunk)
        return;

    if (chunk->tag != NULL)
        tag_free(chunk->tag);

    av_frame_free(&chunk->frame);
    av_freep(&chunk);
}

#ifndef NDEBUG
bool
music_chunk_check_format(const struct music_chunk *chunk,
			 const struct audio_format *audio_format)
{
	assert(chunk != NULL);
	assert(audio_format != NULL);
	assert(audio_format_valid(audio_format));

	return !chunk->frame ||
		audio_format_equals(&chunk->audio_format, audio_format);
}
#endif