Renamed Opus dec
Additionally made very minor changes to fix 80 character line limit in some places. Signed-off-by: Mahyar Koshkouei <deltabeard@users.noreply.github.com>
This commit is contained in:
Mahyar Koshkouei
187
source/opus.c
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187
source/opus.c
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/********************************************************************
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* *
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* THIS FILE IS PART OF THE libopusfile SOFTWARE CODEC SOURCE CODE. *
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* USE, DISTRIBUTION AND REPRODUCTION OF THIS LIBRARY SOURCE IS *
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* GOVERNED BY A BSD-STYLE SOURCE LICENSE INCLUDED WITH THIS SOURCE *
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* IN 'COPYING'. PLEASE READ THESE TERMS BEFORE DISTRIBUTING. *
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* *
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* THE libopusfile SOURCE CODE IS (C) COPYRIGHT 1994-2012 *
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* by the Xiph.Org Foundation and contributors http://www.xiph.org/ *
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* *
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********************************************************************/
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#include <3ds.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <errno.h>
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#include <string.h>
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#include <opus/opusfile.h>
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// Number of samples per second * channels * size of one sample
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#define CHANNEL 0x08
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#define BUFFER_SIZE 120*48*2*sizeof(opus_int16)*32
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int convOpus(const char* in, const char *outf)
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{
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OggOpusFile *of;
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FILE *wav;
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ogg_int64_t duration = 0;
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int ret;
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int output_seekable;
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ogg_int64_t nsamples = 0;
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opus_int16* pcm = linearAlloc(120*48*2*sizeof(opus_int16)*32);
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ndspWaveBuf waveBuf;
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of = op_open_file(in, &ret);
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if((wav = fopen(outf, "w+")) == NULL)
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{
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fprintf(stderr, "Failed to open file '%s': %i %s\n",outf,errno, strerror(errno));
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return EXIT_FAILURE;
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}
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if(of == NULL)
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{
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fprintf(stderr, "Failed to open file '%s': %i\n",in,ret);
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return EXIT_FAILURE;
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}
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// Not really required.
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output_seekable = fseek(wav, 0, SEEK_CUR);
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if(op_seekable(of))
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{
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fprintf(stderr, "\nTotal number of links: %i\n", op_link_count(of));
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// Get PCM length of entire stream.
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duration = op_pcm_total(of, -1);
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fprintf(stderr, "Total duration: ");
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fprintf(stderr, " (%li samples @ 48 kHz)\n", (long)duration);
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}
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else if(output_seekable < 0)
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fprintf(stderr,"WARNING: Neither input nor output are seekable.\n");
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/* Initialise DSP stuff */
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if(R_FAILED(ndspInit()))
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{
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printf("Initialising ndsp failed.");
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goto out;
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}
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ndspSetOutputMode(NDSP_OUTPUT_STEREO);
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ndspChnReset(CHANNEL);
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ndspChnWaveBufClear(CHANNEL);
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/* Polyphase sounds much better than linear or no interpolation */
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ndspChnSetInterp(CHANNEL, NDSP_INTERP_POLYPHASE);
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ndspChnSetRate(CHANNEL, 48000);
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ndspChnSetFormat(CHANNEL, NDSP_FORMAT_STEREO_PCM16);
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memset(&waveBuf, 0, sizeof(waveBuf));
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waveBuf.data_vaddr = &pcm;
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fprintf(stderr, "PCM %d, %d\n", sizeof(pcm), sizeof(*pcm));
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for(;;)
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{
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u32 kDown;
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static int num = 0;
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int semsamples = 0;
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hidScanInput();
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gfxFlushBuffers();
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gfxSwapBuffers();
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gspWaitForVBlank();
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kDown = hidKeysDown();
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if(kDown & KEY_B)
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break;
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/* Returns number of samples decoded. */
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for(int i = 0; i < 32; i++)
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{
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ret = op_read_stereo(of, pcm + (120*48*2*i), 120*48*2);
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nsamples += ret;
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semsamples += ret;
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}
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if(ret < 0)
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{
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fprintf(stderr, "\nError decoding '%s': %i\n", in, ret);
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ret = EXIT_FAILURE;
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break;
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}
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if(ret == 0)
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{
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ret = EXIT_SUCCESS;
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break;
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}
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waveBuf.nsamples = semsamples;
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fprintf(stderr, "Ret: %d, #: %d, Sample: %li", ret, num++,
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(long)semsamples);
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DSP_FlushDataCache(pcm, 120*48*2*sizeof(opus_int16)*32);
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ndspChnWaveBufAdd(CHANNEL, &waveBuf);
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while(waveBuf.status != NDSP_WBUF_DONE)
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{
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u32 kDown;
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hidScanInput();
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kDown = hidKeysDown();
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if(kDown & KEY_B)
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break;
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if(kDown & KEY_START)
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goto out;
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printf("Status: %d:%s\n", waveBuf.status,
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waveBuf.status == NDSP_WBUF_QUEUED ? "Que'd" : "Playing");
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}
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#if 0
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// Number of samples read * size of each sample * number of channels
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if(fwrite(pcm, ret * sizeof(opus_int16) * 2, 1, wav) == 0)
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{
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fprintf(stderr, "\nError writing decoded audio data: %s\n",
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strerror(errno));
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ret = EXIT_FAILURE;
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break;
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}
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waveBuf[0].data_vaddr = &pcm[0];
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waveBuf[0].nsamples = ret;
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ndspChnWaveBufAdd(CHANNEL, &waveBuf[0]);
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while(ndspChnIsPlaying(CHANNEL) == false)
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{}
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while(ndspChnIsPlaying(CHANNEL) == true)
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{}
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printf(" Buf0: %s.", waveBuf[0].status == NDSP_WBUF_QUEUED ? "Queued" : "Playing");
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#endif
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}
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if(ret == EXIT_SUCCESS)
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{
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fprintf(stderr, "\nDone: played ");
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fprintf(stderr, " (%li samples @ 48 kHz).\n", (long)nsamples);
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}
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if(op_seekable(of) && nsamples != duration)
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{
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fprintf(stderr, "\nWARNING: Number of output samples does not match "
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"declared file duration.\n");
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if(output_seekable < 0)
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fprintf(stderr, "Output WAV file will be corrupt.\n");
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}
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if(fclose(wav) != 0)
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fprintf(stderr, "\nError closing file: %d - %s\n", errno, strerror(errno));
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out:
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ndspExit();
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op_free(of);
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linearFree(pcm);
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return ret;
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}
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