static int ogg_is_our_file(char *filename)
{
char *ext;
FILE *file;
unsigned long file_length;
OggVorbis_File temp_ogg;
//check parameters
if ((!filename) || (!ogg_file))
{
PE_DBG_PRINTF("MusicEngine: ogg_is_our_file() invalid parameter filename or ogg_file! \n");
return FALSE;
}
ext = strrchr(filename, (int)'.');
if (ext)
{
if (!strncasecmp(ext, ".OGG", 4))
{
#ifndef ENABLE_PE_CACHE
file = fopen(filename, "rb"); // is our file, open file
if (!file)
{
return FALSE;
}
#else
ogg_info_cache_id = pe_cache_open(filename, NULL, OGG_CACHE_SIZE, OGG_BLOCK_SIZE);
if (ogg_info_cache_id < 0)
{
libc_printf("<%d> <%s> pe_cache_open failed!\n", __LINE__, __FUNCTION__);
return FALSE;
}
file = (FILE *)(((UINT32)ogg_info_cache_id | PE_CACHE_ID_TAG));
#endif
if(ov_test(file, &temp_ogg, NULL, 0) < 0) // 这里跟着调用的文件系统函数,不是pe_cache 接口
{
PE_DBG_PRINTF("Input does not appear to be an Ogg bitstream.\n");
#ifndef ENABLE_PE_CACHE
fclose(file); // if test not ogg, close file
#else
pe_cache_close(ogg_info_cache_id);
ogg_info_cache_id = -1;
#endif
return FALSE;
}
ov_clear(&temp_ogg); // 如果完成，在这里就会调用close
return TRUE;
}
}
PE_DBG_PRINTF("Input does not appear to be an Ogg bitstream.\n");
return FALSE;
}
static int gif_abort(void)
{
struct osd_device *osd_dev;
/*
if(jpeg_file.id > 0)
{
osal_mutex_lock(jpeg_file.lock, TMO_FEVR);
jpeg_file.mp_cb = NULL;
osal_mutex_unlock(jpeg_file.lock);
imagedec_stop(jpeg_file.id);
while(jpeg_file.task_terminated == 1)
{
osal_task_sleep(10);
}
}
*/
//gif_file fh;
#ifdef ENABLE_PE_CACHE
if(gif_cache_id >= 0) pe_cache_close(gif_cache_id);
gif_cache_id = -1;
#endif
#ifdef ENABLE_PE_CACHE
fh = 1;
#endif
if (gif == NULL)
return 0;
gif_stop(gif, fh);
gif_close(gif);
alpha_value_flag = 0;
#ifdef DUAL_ENABLE
osd_dev = (struct osd_device *)dev_get_by_id(HLD_DEV_TYPE_OSD, 0);
OSDDrv_ShowOnOff((HANDLE)osd_dev,FALSE);
OSDDrv_Close((HANDLE)osd_dev);
tran_use_number = 256;
#endif
gif = NULL;
}
static int ogg_play_file(char *filename, mp_callback_func cb)
{
OSAL_T_CTSK ogg_engine_play_task_attribute;
unsigned long ogg_engine_flag;
PE_DBG_PRINTF("MusicEngine: ==> ogg_play_file()! \n");
//check parameters
if ((!filename) || (!cb) || (!ogg_file))
{
PE_DBG_PRINTF("MusicEngine: ogg_play_file() invalid parameter filename or cb or ogg_file! \n");
return -1;
}
//init ogg_file
#ifdef ENABLE_PE_CACHE
ogg_cache_id = pe_cache_open(filename, NULL, OGG_CACHE_SIZE, OGG_BLOCK_SIZE);
if(ogg_cache_id < 0)
{
PE_DBG_PRINTF("MusicEngine: ogg_play_file() pe_cache_open failed! \n");
return -1;
}
ogg_file->file = (FILE *)((UINT32)ogg_cache_id | PE_CACHE_ID_TAG); //只有在作了这个操作之后,以后的文件系统函数才是pe_cache接口
#else
ogg_file->file = fopen(filename, "rb");
if (!ogg_file->file)
{
PE_DBG_PRINTF("MusicEngine: ogg_play_file() fopen failed! \n");
return -1;
}
#endif
ogg_file->seek_to = 0;
ogg_file->command = 0;
ogg_file->stop_imm = TRUE;
ogg_engine.ogg_engine_flag_id = OSAL_INVALID_ID;
ogg_engine.ogg_engine_task_id = OSAL_INVALID_ID;
deca_io_control((struct deca_device *)dev_get_by_id(HLD_DEV_TYPE_DECA, 0), DECA_SET_STR_TYPE, AUDIO_OGG );
prev_sp_l = 0;
prev_sp_r = 0;
g_pcm_sample_num = 0;
g_pcm_current_using = 0;
g_temp_pcm_buff = (char *)(ogg_file->processed_pcm_buff+ON_PCM_BUFF_LEN*8);
//code to create flag
ogg_engine_flag = OGG_ENGINE_FLAG_INITIALIZE;
ogg_engine.ogg_engine_flag_id = osal_flag_create(ogg_engine_flag);
if ( ogg_engine.ogg_engine_flag_id == OSAL_INVALID_ID)
{
PE_DBG_PRINTF("MusicEngine: ogg_play_file() osal_flag_create failure! \n");
#ifdef ENABLE_PE_CACHE
pe_cache_close(ogg_cache_id);
ogg_cache_id = -1;
#else
fclose(ogg_file->file);
#endif
return -1;
}
//start thread
ogg_engine_play_task_attribute.stksz = OGG_ENGINE_PLAY_TASK_STACKSIZE*8;
ogg_engine_play_task_attribute.quantum = OGG_ENGINE_PLAY_TASK_QUANTUM;
ogg_engine_play_task_attribute.itskpri = OSAL_PRI_HIGH;//OSAL_PRI_NORMAL ;
ogg_engine_play_task_attribute.para1 = (unsigned long)cb;
//ogg_engine_play_task_attribute.para2 =;
ogg_engine_play_task_attribute.name[0] = 'O';
ogg_engine_play_task_attribute.name[1] = 'G';
ogg_engine_play_task_attribute.name[2] = 'G';
ogg_engine_play_task_attribute.task = (FP)ogg_play_task;
ogg_engine.ogg_engine_task_id = osal_task_create(&ogg_engine_play_task_attribute);
if(ogg_engine.ogg_engine_task_id == OSAL_INVALID_ID)
{
PE_DBG_PRINTF("MusicEngine: ogg_play_file() osal_task_create failed! \n");
osal_flag_delete(ogg_engine.ogg_engine_flag_id);
ogg_engine.ogg_engine_flag_id = OSAL_INVALID_ID;
#ifdef ENABLE_PE_CACHE
pe_cache_close(ogg_cache_id);
ogg_cache_id = -1;
#else
fclose(ogg_file->file);
#endif
return -1;
}
//code to sync
osal_flag_wait(&ogg_engine_flag, ogg_engine.ogg_engine_flag_id, OGG_ENGINE_FLAG_MASK, OSAL_TWF_ORW | OSAL_TWF_CLR, OSAL_WAIT_FOREVER_TIME);
if (ogg_engine_flag != OGG_ENGINE_FLAG_SUCCESS)
{
osal_flag_delete(ogg_engine.ogg_engine_flag_id);
ogg_engine.ogg_engine_flag_id = OSAL_INVALID_ID;
//fclose(ogg_file->file);
return -1;
}
PE_DBG_PRINTF("MusicEngine: <== ogg_play_file()! \n");
return 0;
}
static void ogg_play_task(mp_callback_func cb)
{
long ret = 0;
int current_section = 0;
double time_seek_to = 0;
vorbis_info *vi;
struct snd_device *sound_dev;
int *processed_pcm;
double song_time;
PE_DBG_PRINTF("MusicEngine: ==> ogg_play_task()! \n");
sound_dev = (struct snd_device*)dev_get_by_type(NULL, HLD_DEV_TYPE_SND);
processed_pcm = (int*)ogg_file->processed_pcm_buff;
if (ov_open(ogg_file->file, &ogg_file->vf, NULL, 0) < 0)
{
PE_DBG_PRINTF("MusicEngine: ogg_play_task() ov_open failed! \n");
#ifdef ENABLE_PE_CACHE
pe_cache_close(ogg_cache_id); // 这个ogg_cache_id是在play_file时打开
ogg_cache_id = -1;
#else
fclose(ogg_file->file);
#endif
//FREE(processed_pcm);
osal_flag_set(ogg_engine.ogg_engine_flag_id, OGG_ENGINE_FLAG_UNSUCCESSFUL);
return;
}
else
{
PE_DBG_PRINTF("MusicEngine: ov_opened \n");
{
vorbis_info *vi = ov_info(&ogg_file->vf, -1);
if (!vi)
{
PE_DBG_PRINTF("MusicEngine: ov_info failed!\n");
ov_clear(&ogg_file->vf);
osal_flag_set(ogg_engine.ogg_engine_flag_id, OGG_ENGINE_FLAG_UNSUCCESSFUL);
return;
}
ogg_file->samplerate = vi->rate;
ogg_file->channel = vi->channels;
PE_DBG_PRINTF("\nBitstream is %d channel, %ldHz\n", vi->channels, vi->rate);
song_time = ov_time_total(&ogg_file->vf, -1);
if (song_time <= 0)
{
PE_DBG_PRINTF("MusicEngine: ov_info failed!\n");
ov_clear(&ogg_file->vf);
osal_flag_set(ogg_engine.ogg_engine_flag_id, OGG_ENGINE_FLAG_UNSUCCESSFUL);
}
}
osal_flag_set(ogg_engine.ogg_engine_flag_id, OGG_ENGINE_FLAG_SUCCESS);
}
//all work success, we can start to play
while (ogg_file->command != OGG_CMD_STOP)
{
if (ogg_file->seek_to != 0)
{
time_seek_to = ov_time_tell(&ogg_file->vf);
time_seek_to = time_seek_to + (ogg_file->seek_to * 1000);
if (time_seek_to < 0)
{
time_seek_to = 0;
}
else if (time_seek_to > song_time)
{
time_seek_to = song_time;
}
ret = ov_time_seek(&ogg_file->vf, time_seek_to);
if (ret < 0)
{
//seek failed
}
osal_task_dispatch_off();
ogg_file->seek_to = 0;
osal_task_dispatch_on();
}
if (ogg_file->command == OGG_CMD_NONE)
{
ret = ov_read(&ogg_file->vf, (void *)ogg_file->pcm_out_buff, 2304, ¤t_section);
if (ret == 0)
{
PE_DBG_PRINTF("file end!\n");
//EOF we need call back
osal_task_dispatch_off();
if (ogg_file->command != OGG_CMD_STOP)
{
ogg_file->command = OGG_CMD_WAIT_FOR_STOP;
}
osal_task_dispatch_on();
cb(MP_MUSIC_PLAYBACK_END, 0);
osal_task_sleep(10);
}
else if (ret < 0)
{
PE_DBG_PRINTF("error!!!\n");
/* error in the stream. Not a problem, just reporting it in case we (the app) cares. In this case, we don't. */
osal_task_dispatch_off();
if (ogg_file->command != OGG_CMD_STOP)
{
ogg_file->command = OGG_CMD_WAIT_FOR_STOP;
}
osal_task_dispatch_on();
cb(MP_MUSIC_PLAYBACK_END, 0);
osal_task_sleep(10);
}
else
{
/* we don't bother dealing with sample rate changes, etc, but you'll have to*/
process_ogg_pcm(sound_dev, ret, processed_pcm);
}
}
else
{
osal_task_sleep(10);
}
}
ov_clear(&ogg_file->vf);
ogg_avoid_under_run = 0;
snd_io_control(sound_dev, SND_CC_MUTE, 0);
snd_stop(sound_dev);
//FREE(processed_pcm);
osal_flag_set(ogg_engine.ogg_engine_flag_id, OGG_ENGINE_FLAG_TASK_EXIT); // task结束，发出EXIT消息
PE_DBG_PRINTF("MusicEngine: <== ogg_play_task()! \n");
}
static int ogg_get_song_info(char *filename, MusicInfo *music_info)
{
int status = 3;
FILE *file;
unsigned long file_length;
int bitrate;
double song_time;
OggVorbis_File temp_ogg;
PE_DBG_PRINTF("MusicEngine: ==> ogg_get_song_info()! \n");
if ((!filename) || (!music_info) || (!ogg_file))
{
PE_DBG_PRINTF("MusicEngine: ogg_get_song_info() invalid parameter filename or music_info or ogg_file!\n");
return -1;
}
#ifndef ENABLE_PE_CACHE
file = fopen(filename, "rb"); // get_song_info打开文件
if (!file)
{
PE_DBG_PRINTF("MusicEngine: ogg_get_song_info() fopen failed! \n");
return -1;
}
fseek(file, 0, SEEK_END);
file_length = ftell(file);
music_info->file_length = file_length;
fseek(file, 0, SEEK_SET);
#else
ogg_info_cache_id = pe_cache_open(filename, NULL, OGG_CACHE_SIZE, OGG_BLOCK_SIZE);
if (0 > ogg_info_cache_id)
{
libc_printf("<%d><%s> pe_cache_open failed!\n", __LINE__, __FUNCTION__);
return -1;
}
file = (FILE *)(((UINT32)ogg_info_cache_id | PE_CACHE_ID_TAG));
pe_cache_seek(ogg_info_cache_id, 0, SEEK_END);
file_length = pe_cache_tell(ogg_info_cache_id);
music_info->file_length = file_length;
pe_cache_seek(ogg_info_cache_id, 0, SEEK_SET);
#endif
if(ov_open(file, &temp_ogg, NULL, 0) < 0) // 如果这里紧跟着调用ov的函数,则里面的文件系统函数都是stdio,不是pe_cache
{
PE_DBG_PRINTF("Input does not appear to be an Ogg bitstream.\n");
#ifndef ENABLE_PE_CACHE
fclose(file);
#else
pe_cache_close(ogg_info_cache_id);
ogg_info_cache_id = -1;
#endif
return -1;
}
song_time = ov_time_total(&temp_ogg, -1);
if (song_time < 0)
{
PE_DBG_PRINTF("Can not get song time from Ogg bitstream.\n");
song_time = 0;
}
music_info->time = song_time / 1000;
ov_clear(&temp_ogg); // get_song_info完毕,在这里close文件
PE_DBG_PRINTF("MusicEngine: <== ogg_get_song_info()! \n");
return status;
}