raw.c

/*
 * RAW muxer and demuxer
 * Copyright (c) 2001 Fabrice Bellard
 * Copyright (c) 2005 Alex Beregszaszi
 *
 * This file is part of FFmpeg.
 *
 * FFmpeg is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * FFmpeg 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
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with FFmpeg; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
 */

#include "libavutil/crc.h"
#include "libavcodec/ac3_parser.h"
#include "libavcodec/get_bits.h"
#include "libavcodec/bytestream.h"
#include "avformat.h"
#include "raw.h"
#include "id3v2.h"
#include "id3v1.h"

/* simple formats */

#if CONFIG_ROQ_MUXER
static int roq_write_header(struct AVFormatContext *s)
{
    static const uint8_t header[] = {
        0x84, 0x10, 0xFF, 0xFF, 0xFF, 0xFF, 0x1E, 0x00
    };

    put_buffer(s->pb, header, 8);
    put_flush_packet(s->pb);

    return 0;
}
#endif

#if CONFIG_NULL_MUXER
static int null_write_packet(struct AVFormatContext *s, AVPacket *pkt)
{
    return 0;
}
#endif

#if CONFIG_MUXERS
static int raw_write_packet(struct AVFormatContext *s, AVPacket *pkt)
{
    put_buffer(s->pb, pkt->data, pkt->size);
    put_flush_packet(s->pb);
    return 0;
}
#endif

#if CONFIG_DEMUXERS
/* raw input */
static int raw_read_header(AVFormatContext *s, AVFormatParameters *ap)
{
    AVStream *st;
    enum CodecID id;