bool JMP3::update() { if (!init_done) { return false; } #ifdef MP3_SUPPORT int retry = 8;//FIXME:magic number JMP3_update_start: if (!m_paused) { if (sceMp3CheckStreamDataNeeded(m_mp3Handle) > 0) { fillBuffers(); } short* tempBuffer; int numDecoded = 0; while (true) { numDecoded = sceMp3Decode(m_mp3Handle, &tempBuffer); if (numDecoded > 0) break; int ret = sceMp3CheckStreamDataNeeded(m_mp3Handle); if (ret <= 0) break; fillBuffers(); } // Okay, let's see if we can't get something outputted :/ if (numDecoded == 0 || ((unsigned)numDecoded == 0x80671402)) { if (retry-- > 0){ //give me a recovery chance after suspend/resume... sceKernelDelayThread(1); goto JMP3_update_start; } sceMp3ResetPlayPosition(m_mp3Handle); if (!m_loop) m_paused = true; m_samplesPlayed = 0; } else { if (m_channel < 0 || m_lastDecoded != numDecoded) { if (m_channel >= 0) sceAudioSRCChRelease(); m_channel = sceAudioSRCChReserve(numDecoded / (2 * m_numChannels), m_samplingRate, m_numChannels); } // Output m_samplesPlayed += sceAudioSRCOutputBlocking(m_volume, tempBuffer); m_playTime = (m_samplingRate > 0) ? (m_samplesPlayed / (m_samplingRate/1000)) : 0; m_lastDecoded = numDecoded; } } #endif return true; }
int GetBufferSceMp3(short* buf,int length,float amp,int channel) { int byteLength = length<<2,i=0; if (streamsSceMp3[channel].paused || !streamsSceMp3[channel].initialized) { memset(buf,0,byteLength); return PSPAALIB_WARNING_PAUSED_BUFFER_REQUESTED; } while(streamsSceMp3[channel].bufSize<byteLength) { if(sceMp3CheckStreamDataNeeded(streamsSceMp3[channel].handle)) { FillBuffer(channel); } short* decodeBuf; int bytesDecoded=sceMp3Decode(streamsSceMp3[channel].handle,&decodeBuf); if (bytesDecoded <= 0) break; streamsSceMp3[channel].buf=(u8*)realloc(streamsSceMp3[channel].buf,streamsSceMp3[channel].bufSize+bytesDecoded); memcpy(streamsSceMp3[channel].buf+streamsSceMp3[channel].bufSize,decodeBuf,bytesDecoded); streamsSceMp3[channel].bufSize+=bytesDecoded; } unsigned char byte1, byte2; int how_many = (streamsSceMp3[channel].bufSize > byteLength ? byteLength : streamsSceMp3[channel].bufSize); for (i=0;i<2*length;i++) { byte1 = (2*i >= how_many) ? 0 : streamsSceMp3[channel].buf[2*i]; byte2 = (2*i+1 >= how_many) ? 0 : streamsSceMp3[channel].buf[2*i+1]; buf[i]=((short)(byte1 | byte2<<8))*amp; } streamsSceMp3[channel].bufSize-=how_many; memmove(streamsSceMp3[channel].buf,streamsSceMp3[channel].buf+how_many,streamsSceMp3[channel].bufSize); return PSPAALIB_SUCCESS; }
/* main routine */ int main(int argc, char *argv[]) { SceCtrlData pad; //init screen and callbacks pspDebugScreenInit(); pspDebugScreenClear(); SetupCallbacks(); // Setup Pad sceCtrlSetSamplingCycle(0); sceCtrlSetSamplingMode(0); // Load modules int status = sceUtilityLoadModule(PSP_MODULE_AV_AVCODEC); if (status<0) { ERRORMSG("ERROR: sceUtilityLoadModule(PSP_MODULE_AV_AVCODEC) returned 0x%08X\n", status); } status = sceUtilityLoadModule(PSP_MODULE_AV_MP3); if (status<0) { ERRORMSG("ERROR: sceUtilityLoadModule(PSP_MODULE_AV_MP3) returned 0x%08X\n", status); } // Open the input file int fd = sceIoOpen( MP3FILE, PSP_O_RDONLY, 0777 ); if (fd<0) { ERRORMSG("ERROR: Could not open file '%s' - 0x%08X\n", MP3FILE, fd); } // Init mp3 resources status = sceMp3InitResource(); if (status<0) { ERRORMSG("ERROR: sceMp3InitResource returned 0x%08X\n", status); } // Reserve a mp3 handle for our playback SceMp3InitArg mp3Init; mp3Init.mp3StreamStart = 0; mp3Init.mp3StreamEnd = sceIoLseek32( fd, 0, SEEK_END ); mp3Init.unk1 = 0; mp3Init.unk2 = 0; mp3Init.mp3Buf = mp3Buf; mp3Init.mp3BufSize = sizeof(mp3Buf); mp3Init.pcmBuf = pcmBuf; mp3Init.pcmBufSize = sizeof(pcmBuf); int handle = sceMp3ReserveMp3Handle( &mp3Init ); if (handle<0) { ERRORMSG("ERROR: sceMp3ReserveMp3Handle returned 0x%08X\n", handle); } // Fill the stream buffer with some data so that sceMp3Init has something to work with fillStreamBuffer( fd, handle ); status = sceMp3Init( handle ); if (status<0) { ERRORMSG("ERROR: sceMp3Init returned 0x%08X\n", status); } int channel = -1; int samplingRate = sceMp3GetSamplingRate( handle ); int numChannels = sceMp3GetMp3ChannelNum( handle ); int lastDecoded = 0; int volume = PSP_AUDIO_VOLUME_MAX; int numPlayed = 0; int paused = 0; int lastButtons = 0; int loop = 0; while (isrunning) { sceDisplayWaitVblankStart(); pspDebugScreenSetXY(0, 0); printf("PSP Mp3 Sample v1.0 by Raphael\n\n"); printf("Playing '%s'...\n", MP3FILE); printf(" %i Hz\n", samplingRate); printf(" %i kbit/s\n", sceMp3GetBitRate( handle )); printf(" %s\n", numChannels==2?"Stereo":"Mono"); printf(" %s\n\n", loop==0?"No loop":"Loop"); int playTime = samplingRate>0?numPlayed / samplingRate:0; printf(" Playtime: %02i:%02i\n", playTime/60, playTime%60 ); printf("\n\n\nPress CIRCLE to Pause/Resume playback\nPress TRIANGLE to reset playback\nPress CROSS to switch loop mode\nPress SQUARE to stop playback and quit\n"); if (!paused) { // Check if we need to fill our stream buffer if (sceMp3CheckStreamDataNeeded( handle )>0) { fillStreamBuffer( fd, handle ); } // Decode some samples short* buf; int bytesDecoded; int retries = 0; // We retry in case it's just that we reached the end of the stream and need to loop for (; retries<1; retries++) { bytesDecoded = sceMp3Decode( handle, &buf ); if (bytesDecoded>0) break; if (sceMp3CheckStreamDataNeeded( handle )<=0) break; if (!fillStreamBuffer( fd, handle )) { numPlayed = 0; } } if (bytesDecoded<0 && bytesDecoded!=0x80671402) { ERRORMSG("ERROR: sceMp3Decode returned 0x%08X\n", bytesDecoded); } // Nothing more to decode? Must have reached end of input buffer if (bytesDecoded==0 || bytesDecoded==0x80671402) { paused = 1; sceMp3ResetPlayPosition( handle ); numPlayed = 0; } else { // Reserve the Audio channel for our output if not yet done if (channel<0 || lastDecoded!=bytesDecoded) { if (channel>=0) sceAudioSRCChRelease(); channel = sceAudioSRCChReserve( bytesDecoded/(2*numChannels), samplingRate, numChannels ); } // Output the decoded samples and accumulate the number of played samples to get the playtime numPlayed += sceAudioSRCOutputBlocking( volume, buf ); } } sceCtrlPeekBufferPositive(&pad, 1); if (pad.Buttons!=lastButtons) { if (pad.Buttons & PSP_CTRL_CIRCLE) { paused ^= 1; } if (pad.Buttons & PSP_CTRL_TRIANGLE) { // Reset the stream and playback status sceMp3ResetPlayPosition( handle ); numPlayed = 0; } if (pad.Buttons & PSP_CTRL_CROSS) { loop = (loop==0?-1:0); status = sceMp3SetLoopNum( handle, loop ); if (status<0) { ERRORMSG("ERROR: sceMp3SetLoopNum returned 0x%08X\n", status); } } if (pad.Buttons & PSP_CTRL_SQUARE) { break; } lastButtons = pad.Buttons; } } // Cleanup time... if (channel>=0) sceAudioSRCChRelease(); status = sceMp3ReleaseMp3Handle( handle ); if (status<0) { ERRORMSG("ERROR: sceMp3ReleaseMp3Handle returned 0x%08X\n", status); } status = sceMp3TermResource(); if (status<0) { ERRORMSG("ERROR: sceMp3TermResource returned 0x%08X\n", status); } status = sceIoClose( fd ); if (status<0) { ERRORMSG("ERROR: sceIoClose returned 0x%08X\n", status); } sceKernelExitGame(); return 0; }