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2026-08-24 10:03:24 +08:00

128 lines
3.4 KiB
C

/*
* Copyright (C) 2017 Amlogic, Inc. All rights reserved.
*
* 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.,
* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
* Description: adpcm decoder
*/
#ifndef _CODEC_MESSAGE_HEADERS
#define _CODEC_MESSAGE_HEADERS
#define SUB_FMT_VALID (1<<1)
#define CHANNEL_VALID (1<<2)
#define SAMPLE_RATE_VALID (1<<3)
#define DATA_WIDTH_VALID (1<<4)
#define AUDIO_EXTRA_DATA_SIZE (2048*2)
struct digit_raw_output_info {
int framelength;
unsigned char* framebuf;
int frame_size;
int frame_samples;
unsigned char* rawptr;
//for AC3
int sampleratecode;
int bsmod;
int bpf;
int brst;
int length;
int padsize;
int mode;
unsigned int syncword1;
unsigned int syncword2;
unsigned int syncword3;
unsigned int syncword1_mask;
unsigned int syncword2_mask;
unsigned int syncword3_mask;
unsigned chstat0_l;
unsigned chstat0_r;
unsigned chstat1_l;
unsigned chstat1_r;
unsigned can_bypass;
};
struct frame_fmt {
int valid;
int sub_fmt;
int channel_num;
int sample_rate;
int data_width;
int buffered_len;/*dsp codec,buffered origan data len*/
int format;
unsigned int total_byte_parsed;
union {
unsigned int total_sample_decoded;
void *pcm_encoded_info; //used for encoded pcm info
} data;
unsigned int bps;
void* private_data;
struct digit_raw_output_info * digit_raw_output_info;
};
typedef struct pcm51_encoded_info_s {
unsigned int InfoValidFlag; //only if InfoValidFlag==1 can userspace start reading the data in 51pcm_buf;
unsigned int SampFs; //sampling frequency
unsigned int NumCh; //total output valid channels( including LFE channel if LFE is valid)
unsigned int AcMode; //audio coding mode
unsigned int LFEFlag; //indicating the output buffers cotains LFE components if LFEFlag==1
unsigned int BitsPerSamp; //bits count used to indicates a pcm_samples
} pcm51_encoded_info_t;
struct frame_info {
int len;
unsigned long offset;/*steam start to here*/
unsigned long buffered_len;/*data buffer in dsp,pcm datalen*/
int reversed[1];/*for cache aligned 32 bytes*/
};
struct audio_info {
int valid;
int sample_rate;
int channels;
int bitrate;
int codec_id;
int block_align;
int extradata_size;
char extradata[AUDIO_EXTRA_DATA_SIZE];
};
typedef enum {
DECODE_INIT_ERR,
DECODE_FATAL_ERR,
} error_code_t;
struct dsp_working_info {
int status;
int sp;
int pc;
int ilink1;
int ilink2;
int blink;
int jiffies;
int out_wp;
int out_rp;
int buffered_len;//pcm buffered at the dsp side
int es_offset;//stream read offset since start decoder
int reserved[5];
};
#endif