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/*
* The contents of this file are subject to the Mozilla Public
* License Version 1.1 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
* implied. See the License for the specific language governing
* rights and limitations under the License.
*
* The Original Code is MPEG4IP.
*
* The Initial Developer of the Original Code is Cisco Systems Inc.
* Portions created by Cisco Systems Inc. are
* Copyright (C) Cisco Systems Inc. 2000, 2001. All Rights Reserved.
*
* Contributor(s):
* Bill May wmay@cisco.com
*
* Adapted to PD/PDP by Yves Degoyon (ydegoyon@free.fr)
*/
/*
* audio.h - provides a class that interfaces between the codec and
* the SDL audio application. Will provide for volume, buffering,
* syncronization
*/
#ifndef __PDP_MP4AUDIOSYNC__
#define __PDP_MP4AUDIOSYNC__
#include "audio.h"
#include "pdp_mp4player~.h"
#define DECODE_BUFFERS_MAX 32
class CPDPAudioSync : public CAudioSync {
public:
CPDPAudioSync(CPlayerSession *psptr, t_pdp_mp4player *pdp_father);
~CPDPAudioSync(void);
// APIs from codec
uint8_t *get_audio_buffer(void);
void filled_audio_buffer(uint64_t ts, int resync);
void set_config(int freq, int channels, int format, uint32_t max_buffer_size);
void set_eof(void);
void load_audio_buffer(uint8_t *from,
uint32_t bytes,
uint64_t ts,
int resync);
// APIs from sync task
int initialize_audio(int have_video);
int is_audio_ready(uint64_t &disptime);
uint64_t check_audio_sync(uint64_t current_time, int &have_eof);
void play_audio(void);
void audio_callback(Uint8 *stream, int len);
void flush_sync_buffers(void);
void flush_decode_buffers(void);
// Initialization, other APIs
void set_wait_sem(SDL_sem *p) { }; //m_audio_waiting = p; } ;
void set_volume(int volume);
private:
void audio_convert_data(void *from, uint32_t len);
volatile int m_dont_fill;
uint64_t m_buffer_ts;
uint32_t m_buffer_offset_on;
uint32_t m_buffer_size;
uint32_t m_fill_index, m_play_index;
volatile int m_buffer_filled[DECODE_BUFFERS_MAX];
uint64_t m_buffer_time[DECODE_BUFFERS_MAX];
uint64_t m_last_fill_timestamp;
uint64_t m_play_time;
SDL_AudioSpec m_obtained;
uint8_t *m_sample_buffer[DECODE_BUFFERS_MAX];
int m_config_set;
int m_audio_initialized;
int m_freq;
int m_channels;
int m_format;
int m_resync_required;
int m_audio_paused;
int m_consec_no_buffers;
volatile int m_audio_waiting_buffer;
int m_use_SDL_delay;
uint32_t m_resync_buffer;
SDL_sem *m_audio_waiting;
uint32_t m_skipped_buffers;
uint32_t m_didnt_fill_buffers;
int m_first_time;
int m_first_filled;
uint32_t m_msec_per_frame;
uint64_t m_buffer_latency;
int m_consec_wrong_latency;
int64_t m_wrong_latency_total;
int m_volume;
int m_do_sync;
int m_load_audio_do_next_resync;
uint32_t m_sample_size;
uint32_t m_play_sample_index;
uint32_t m_samples_loaded;
uint32_t m_bytes_per_sample;
uint64_t m_loaded_next_ts;
int m_silence;
void *m_convert_buffer;
t_pdp_mp4player *m_father;
};
CPDPAudioSync *pdp_create_audio_sync(CPlayerSession *, t_pdp_mp4player *pdp_father);
#endif
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