e184ef1027
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@21695 a1c6a512-1295-4272-9138-f99709370657
97 lines
3.1 KiB
C
97 lines
3.1 KiB
C
/***************************************************************************
|
|
* __________ __ ___.
|
|
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
|
|
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
|
|
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
|
|
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
|
|
* \/ \/ \/ \/ \/
|
|
* $Id$
|
|
*
|
|
* Copyright (C) 2009 Mohamed Tarek
|
|
*
|
|
* 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 software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
|
|
* KIND, either express or implied.
|
|
*
|
|
****************************************************************************/
|
|
#ifndef _RM_H
|
|
#define _RM_H
|
|
|
|
#include <stdio.h>
|
|
#include <inttypes.h>
|
|
|
|
enum codecs{cook};
|
|
typedef struct rm_packet
|
|
{
|
|
uint8_t *frames[100]; /* Pointers to ordered audio frames in buffer */
|
|
uint16_t version;
|
|
uint16_t length;
|
|
uint32_t timestamp;
|
|
uint16_t stream_number;
|
|
uint8_t flags;
|
|
|
|
#ifdef TEST
|
|
uint8_t data[30000]; /* Reordered data. No malloc, hence the size */
|
|
#endif
|
|
}RMPacket;
|
|
|
|
typedef struct rm_context
|
|
{
|
|
/* Demux Context */
|
|
int old_format;
|
|
int current_stream;
|
|
int remaining_len;
|
|
int audio_stream_num; /*< Stream number for audio packets*/
|
|
int audio_pkt_cnt; /* Output packet counter*/
|
|
|
|
/* Stream Variables */
|
|
uint32_t data_offset;
|
|
uint32_t duration;
|
|
uint32_t audiotimestamp; /* Audio packet timestamp*/
|
|
uint16_t sub_packet_cnt; /* Subpacket counter, used while reading */
|
|
uint16_t sub_packet_size, sub_packet_h, coded_framesize; /* Descrambling parameters from container */
|
|
uint16_t audio_framesize; /* Audio frame size from container */
|
|
uint16_t sub_packet_lengths[16]; /* Length of each subpacket */
|
|
|
|
/* Codec Context */
|
|
enum codecs codec_type;
|
|
uint16_t block_align;
|
|
uint32_t nb_packets;
|
|
int frame_number;
|
|
uint32_t extradata_size;
|
|
uint16_t sample_rate;
|
|
uint16_t nb_channels;
|
|
uint32_t bit_rate;
|
|
uint16_t flags;
|
|
|
|
/*cook extradata*/
|
|
uint32_t cook_version;
|
|
uint16_t samples_pf_pc; /* samples per frame per channel */
|
|
uint16_t nb_subbands; /* number of subbands in the frequency domain */
|
|
/* extra 8 bytes for joint-stereo data */
|
|
uint32_t unused;
|
|
uint16_t js_subband_start; /* joint stereo subband start */
|
|
uint16_t js_vlc_bits;
|
|
|
|
} RMContext;
|
|
|
|
int real_parse_header(int fd, RMContext *rmctx);
|
|
|
|
/* Get a (sub_packet_h*frames_per_packet) number of audio frames from a memory buffer */
|
|
int rm_get_packet(uint8_t **src,RMContext *rmctx, RMPacket *pkt);
|
|
|
|
#ifdef TEST
|
|
|
|
int filesize(int fd);
|
|
void advance_buffer(uint8_t **buf, int val);
|
|
|
|
/* Get a (sub_packet_h*frames_per_packet) number of audio frames from a file descriptor */
|
|
void rm_get_packet_fd(int fd,RMContext *rmctx, RMPacket *pkt);
|
|
|
|
#endif /* TEST */
|
|
|
|
#endif /* _RM_H */
|