Implemented basic WAV playback support
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@ -1,5 +1,5 @@
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/* $Id$ */
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/* Copyright (c) 2011-2012 Pierre Pronchery <khorben@defora.org> */
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/* Copyright (c) 2011-2013 Pierre Pronchery <khorben@defora.org> */
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/* This file is part of DeforaOS Desktop Phone */
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/* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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@ -52,6 +52,22 @@ typedef struct _PhonePlugin
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int fd;
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} OSS;
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typedef struct _RIFFChunk
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{
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char ckID[4];
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uint32_t ckSize;
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uint8_t ckData[0];
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} RIFFChunk;
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typedef struct _WaveFormat
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{
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uint16_t wFormatTag;
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uint16_t wChannels;
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uint32_t dwSamplesPerSec;
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uint32_t dwAvgBytesPerSec;
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uint16_t wBlockAlign;
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} WaveFormat;
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/* prototypes */
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static OSS * _oss_init(PhonePluginHelper * helper);
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@ -104,6 +120,10 @@ static void _oss_destroy(OSS * oss)
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/* oss_event */
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static int _event_audio_play(OSS * oss, char const * sample);
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static int _event_audio_play_chunk(OSS * oss, FILE * fp);
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static int _event_audio_play_chunk_riff(OSS * oss, FILE * fp, RIFFChunk * rc);
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static int _event_audio_play_chunk_wave(OSS * oss, FILE * fp, RIFFChunk * rc);
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static int _event_modem_event(OSS * oss, ModemEvent * event);
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static int _event_volume_get(OSS * oss, gdouble * level);
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static int _event_volume_set(OSS * oss, gdouble level);
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@ -112,6 +132,9 @@ static int _oss_event(OSS * oss, PhoneEvent * event)
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{
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switch(event->type)
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{
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case PHONE_EVENT_TYPE_AUDIO_PLAY:
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return _event_audio_play(oss,
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event->audio_play.sample);
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case PHONE_EVENT_TYPE_MODEM_EVENT:
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return _event_modem_event(oss,
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event->modem_event.event);
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@ -125,6 +148,175 @@ static int _oss_event(OSS * oss, PhoneEvent * event)
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return 0;
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}
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static int _event_audio_play(OSS * oss, char const * sample)
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{
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const char path[] = DATADIR "/sounds/" PACKAGE;
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String * s;
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FILE * fp;
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/* XXX ignore errors */
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if((s = string_new_append(path, "/", sample, ".wav", NULL)) == NULL)
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return oss->helper->error(NULL, error_get(), 0);
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/* open the audio file */
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if((fp = fopen(s, "rb")) == NULL)
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{
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oss->helper->error(NULL, strerror(errno), 0);
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string_delete(s);
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return 0;
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}
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string_delete(s);
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/* go through every chunk */
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while(_event_audio_play_chunk(oss, fp) == 0);
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fclose(fp);
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return 0;
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}
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static int _event_audio_play_chunk(OSS * oss, FILE * fp)
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{
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RIFFChunk rc;
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if(fread(&rc, sizeof(rc.ckID) + sizeof(rc.ckSize), 1, fp) != 1)
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return -1;
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#if 0 /* FIXME for big endian */
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rc.ckSize = (rc.ckSize & 0xff000000) >> 24
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| (rc.ckSize & 0xff0000) >> 8
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| (rc.ckSize & 0xff00) << 8;
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| (rc.ckSize & 0xff) << 24;
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#endif
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#ifdef DEBUG
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fprintf(stderr, "DEBUG: chunk \"%c%c%c%c\"\n", rc.ckID[0],
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rc.ckID[1], rc.ckID[2], rc.ckID[3]);
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#endif
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if(strncmp(rc.ckID, "RIFF", 4) == 0)
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{
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if(_event_audio_play_chunk_riff(oss, fp, &rc) != 0)
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return -1;
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}
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for(; rc.ckSize > 0; rc.ckSize--)
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if(fgetc(fp) == EOF)
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return -1;
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/* FIXME implement the padding byte */
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return 0;
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}
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static int _event_audio_play_chunk_riff(OSS * oss, FILE * fp, RIFFChunk * rc)
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{
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char riffid[4];
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const char wave[4] = "WAVE";
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#ifdef DEBUG
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fprintf(stderr, "DEBUG: %s()\n", __func__);
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#endif
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if(rc->ckSize < sizeof(riffid)
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|| fread(&riffid, sizeof(riffid), 1, fp) != 1)
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return -1;
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rc->ckSize -= sizeof(riffid);
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if(strncmp(riffid, wave, sizeof(wave)) == 0)
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return _event_audio_play_chunk_wave(oss, fp, rc);
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/* skip the rest of the chunk */
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for(; rc->ckSize > 0; rc->ckSize--)
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if(fgetc(fp) == EOF)
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return -1;
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return 0;
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}
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static int _event_audio_play_chunk_wave(OSS * oss, FILE * fp, RIFFChunk * rc)
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{
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RIFFChunk rc2;
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#ifdef __NetBSD__
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const char devdsp[] = "/dev/sound";
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#else
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const char devdsp[] = "/dev/dsp";
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#endif
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const char data[4] = "data";
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const char fmt[4] = "fmt ";
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WaveFormat wf;
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int fd = -1;
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int format;
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uint8_t u8;
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while(rc->ckSize > 0)
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{
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/* read the current WAVE chunk */
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if(rc->ckSize < sizeof(rc2)
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|| fread(&rc2, sizeof(rc2), 1, fp) != 1)
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return -1;
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#if 0 /* FIXME for big endian */
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/* FIXME implement */
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#endif
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rc->ckSize -= sizeof(rc2);
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/* interpret the WAVE chunk */
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#ifdef DEBUG
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fprintf(stderr, "DEBUG: wave chunk \"%c%c%c%c\"\n", rc2.ckID[0],
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rc2.ckID[1], rc2.ckID[2], rc2.ckID[3]);
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#endif
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if(strncmp(rc2.ckID, fmt, sizeof(fmt)) == 0)
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{
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if(fd >= 0)
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{
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close(fd);
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return -1;
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}
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if(rc->ckSize < sizeof(wf)
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|| rc2.ckSize < sizeof(wf)
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|| fread(&wf, sizeof(wf), 1, fp) != 1)
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return -1;
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#if 0 /* FIXME for big endian */
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/* FIXME implement */
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#endif
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rc->ckSize -= sizeof(wf);
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rc2.ckSize -= sizeof(wf);
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#ifdef DEBUG
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fprintf(stderr, "DEBUG: 0x%04x format, %u channels\n",
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wf.wFormatTag, wf.wChannels);
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#endif
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switch(wf.wFormatTag)
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{
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case 0x01:
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if((fd = open(devdsp, O_WRONLY)) < 0)
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return -oss->helper->error(NULL,
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devdsp, 1);
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format = AFMT_U8;
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if(ioctl(fd, SNDCTL_DSP_SETFMT, &format)
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< 0)
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{
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close(fd);
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return -oss->helper->error(NULL,
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devdsp, 1);
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}
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break;
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default:
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return -1;
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}
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}
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else if(strncmp(rc2.ckID, data, sizeof(data)) == 0)
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{
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#if 0 /* FIXME for big endian */
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/* FIXME implement */
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#endif
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if(fd < 0)
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return -1;
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/* FIXME use a larger buffer instead */
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for(; fread(&u8, sizeof(u8), 1, fp) == 1;
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rc->ckSize -= sizeof(u8),
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rc2.ckSize -= sizeof(u8))
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if(write(fd, &u8, sizeof(u8)) != sizeof(u8))
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break;
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}
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/* skip the rest of the chunk */
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for(; rc2.ckSize > 0; rc2.ckSize--, rc->ckSize--)
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if(fgetc(fp) == EOF)
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{
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if(fd >= 0)
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close(fd);
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return -1;
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}
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}
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if(fd >= 0)
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close(fd);
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return 0;
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}
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static int _event_modem_event(OSS * oss, ModemEvent * event)
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{
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ModemCallDirection direction;
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