mirror of
https://github.com/tuxbox-fork-migrations/recycled-ni-libstb-hal.git
synced 2025-08-26 15:02:43 +02:00
adding armbox
Origin commit data
------------------
Branch: master
Commit: d8c3c47b86
Author: TangoCash <eric@loxat.de>
Date: 2017-09-12 (Tue, 12 Sep 2017)
------------------
No further description and justification available within origin commit message!
------------------
This commit was generated by Migit
This commit is contained in:
TangoCash
480
libarmbox/audio.cpp
Normal file
480
libarmbox/audio.cpp
Normal file
@@ -0,0 +1,480 @@
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#include <cstdio>
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#include <cstdlib>
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#include <cstring>
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#include <algorithm>
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#include <sys/fcntl.h>
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#include <sys/ioctl.h>
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#include <unistd.h>
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#include <linux/dvb/audio.h>
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#include "audio_lib.h"
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#include "audio_mixer.h"
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#include "lt_debug.h"
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#define AUDIO_DEVICE "/dev/dvb/adapter0/audio0"
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#define lt_debug(args...) _lt_debug(TRIPLE_DEBUG_AUDIO, this, args)
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#define lt_info(args...) _lt_info(TRIPLE_DEBUG_AUDIO, this, args)
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#include <linux/soundcard.h>
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cAudio * audioDecoder = NULL;
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static int proc_put(const char *path, const char *value, const int len)
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{
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int ret, ret2;
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int pfd = open(path, O_WRONLY);
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if (pfd < 0)
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return pfd;
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ret = write(pfd, value, len);
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ret2 = close(pfd);
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if (ret2 < 0)
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return ret2;
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return ret;
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}
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cAudio::cAudio(void *, void *, void *)
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{
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fd = -1;
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clipfd = -1;
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mixer_fd = -1;
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mixerAnalog = mixerHDMI = mixerSPDIF = NULL;
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volumeAnalog = volumeHDMI = volumeSPDIF = 0;
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mixersMuted = false;
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openDevice();
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Muted = false;
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}
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cAudio::~cAudio(void)
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{
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closeMixers();
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closeDevice();
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}
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void cAudio::openDevice(void)
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{
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openMixers();
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if (fd < 0)
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{
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if ((fd = open(AUDIO_DEVICE, O_RDWR)) < 0)
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lt_info("openDevice: open failed (%m)\n");
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fcntl(fd, F_SETFD, FD_CLOEXEC);
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do_mute(true, false);
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}
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else
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lt_info("openDevice: already open (fd = %d)\n", fd);
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}
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void cAudio::closeDevice(void)
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{
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closeMixers();
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if (fd > -1) {
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close(fd);
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fd = -1;
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}
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if (clipfd > -1) {
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close(clipfd);
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clipfd = -1;
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}
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if (mixer_fd > -1) {
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close(mixer_fd);
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mixer_fd = -1;
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}
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}
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int cAudio::do_mute(bool enable, bool remember)
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{
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lt_debug("%s(%d, %d)\n", __FUNCTION__, enable, remember);
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char str[4];
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if (remember)
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Muted = enable;
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sprintf(str, "%d", Muted);
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proc_put("/proc/stb/audio/j1_mute", str, strlen(str));
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if (!enable)
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{
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int f = open("/proc/stb/avs/0/volume", O_RDWR);
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read(f, str, 4);
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close(f);
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str[3] = '\0';
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proc_put("/proc/stb/avs/0/volume", str, strlen(str));
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}
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return 0;
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}
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int map_volume(const int volume)
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{
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unsigned char vol = volume;
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if (vol > 100)
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vol = 100;
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vol = 63 - vol * 63 / 100;
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return vol;
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}
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int cAudio::setVolume(unsigned int left, unsigned int right)
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{
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lt_debug("%s(%d, %d)\n", __func__, left, right);
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volume = (left + right) / 2;
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int v = map_volume(volume);
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#if 0
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if (clipfd != -1 && mixer_fd != -1) {
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int tmp = 0;
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/* not sure if left / right is correct here, but it is always the same anyways ;-) */
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if (! Muted)
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tmp = left << 8 | right;
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int ret = ioctl(mixer_fd, MIXER_WRITE(mixer_num), &tmp);
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if (ret == -1)
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lt_info("%s: MIXER_WRITE(%d),%04x: %m\n", __func__, mixer_num, tmp);
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return ret;
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}
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#endif
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char str[4];
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sprintf(str, "%d", v);
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proc_put("/proc/stb/avs/0/volume", str, strlen(str));
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return 0;
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}
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int cAudio::Start(void)
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{
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int ret;
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ret = ioctl(fd, AUDIO_PLAY);
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return ret;
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}
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int cAudio::Stop(void)
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{
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return ioctl(fd, AUDIO_STOP);
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}
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bool cAudio::Pause(bool Pcm)
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{
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ioctl(fd, Pcm ? AUDIO_PAUSE : AUDIO_CONTINUE, 1);
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return true;
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}
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void cAudio::SetSyncMode(AVSYNC_TYPE Mode)
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{
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lt_debug("%s %d\n", __func__, Mode);
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ioctl(fd, AUDIO_SET_AV_SYNC, Mode);
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}
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// E2 streamtype values. These correspond to
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// player2/linux/drivers/media/dvb/stm/dvb/dvb_audio.c:AudioIoctlSetBypassMode
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#define AUDIO_STREAMTYPE_AC3 0
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#define AUDIO_STREAMTYPE_MPEG 1
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#define AUDIO_STREAMTYPE_DTS 2
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#define AUDIO_STREAMTYPE_AAC 8
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#define AUDIO_STREAMTYPE_AACHE 9
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void cAudio::SetStreamType(AUDIO_FORMAT type)
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{
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int bypass = AUDIO_STREAMTYPE_MPEG;
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lt_debug("%s %d\n", __FUNCTION__, type);
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StreamType = type;
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switch (type)
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{
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case AUDIO_FMT_DD_PLUS:
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case AUDIO_FMT_DOLBY_DIGITAL:
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bypass = AUDIO_STREAMTYPE_AC3;
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break;
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case AUDIO_FMT_AAC:
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bypass = AUDIO_STREAMTYPE_AAC;
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break;
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case AUDIO_FMT_AAC_PLUS:
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bypass = AUDIO_STREAMTYPE_AACHE;
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break;
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case AUDIO_FMT_DTS:
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bypass = AUDIO_STREAMTYPE_DTS;
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break;
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default:
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break;
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}
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// Normaly the encoding should be set using AUDIO_SET_ENCODING
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// But as we implemented the behavior to bypass (cause of e2) this is correct here
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if (ioctl(fd, AUDIO_SET_BYPASS_MODE, bypass) < 0)
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lt_info("%s: AUDIO_SET_BYPASS_MODE failed (%m)\n", __func__);
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}
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int cAudio::setChannel(int channel)
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{
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lt_debug("%s %d\n", __FUNCTION__, channel);
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return 0;
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}
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int cAudio::PrepareClipPlay(int ch, int srate, int bits, int little_endian)
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{
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int fmt;
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unsigned int devmask, stereo, usable;
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const char *dsp_dev = getenv("DSP_DEVICE");
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const char *mix_dev = getenv("MIX_DEVICE");
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lt_debug("%s ch %d srate %d bits %d le %d\n", __FUNCTION__, ch, srate, bits, little_endian);
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if (clipfd > -1) {
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lt_info("%s: clipfd already opened (%d)\n", __FUNCTION__, clipfd);
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return -1;
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}
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mixer_num = -1;
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/* a different DSP device can be given with DSP_DEVICE and MIX_DEVICE
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* if this device cannot be opened, we fall back to the internal OSS device
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* Example:
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* modprobe snd-usb-audio
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* export DSP_DEVICE=/dev/sound/dsp2
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* export MIX_DEVICE=/dev/sound/mixer2
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* neutrino
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*/
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if ((!dsp_dev) || (access(dsp_dev, W_OK))) {
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if (dsp_dev)
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lt_info("%s: DSP_DEVICE is set (%s) but cannot be opened,"
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" fall back to /dev/dsp1\n", __func__, dsp_dev);
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dsp_dev = "/dev/dsp1";
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}
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lt_info("%s: dsp_dev %s mix_dev %s\n", __func__, dsp_dev, mix_dev); /* NULL mix_dev is ok */
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/* the tdoss dsp driver seems to work only on the second open(). really. */
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clipfd = open(dsp_dev, O_WRONLY);
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if (clipfd < 0) {
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lt_info("%s open %s: %m\n", dsp_dev, __FUNCTION__);
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return -1;
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}
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fcntl(clipfd, F_SETFD, FD_CLOEXEC);
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/* no idea if we ever get little_endian == 0 */
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if (little_endian)
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fmt = AFMT_S16_BE;
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else
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fmt = AFMT_S16_LE;
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if (ioctl(clipfd, SNDCTL_DSP_SETFMT, &fmt))
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perror("SNDCTL_DSP_SETFMT");
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if (ioctl(clipfd, SNDCTL_DSP_CHANNELS, &ch))
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perror("SNDCTL_DSP_CHANNELS");
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if (ioctl(clipfd, SNDCTL_DSP_SPEED, &srate))
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perror("SNDCTL_DSP_SPEED");
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if (ioctl(clipfd, SNDCTL_DSP_RESET))
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perror("SNDCTL_DSP_RESET");
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if (!mix_dev)
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return 0;
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mixer_fd = open(mix_dev, O_RDWR);
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if (mixer_fd < 0) {
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lt_info("%s: open mixer %s failed (%m)\n", __func__, mix_dev);
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/* not a real error */
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return 0;
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}
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if (ioctl(mixer_fd, SOUND_MIXER_READ_DEVMASK, &devmask) == -1) {
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lt_info("%s: SOUND_MIXER_READ_DEVMASK %m\n", __func__);
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devmask = 0;
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}
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if (ioctl(mixer_fd, SOUND_MIXER_READ_STEREODEVS, &stereo) == -1) {
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lt_info("%s: SOUND_MIXER_READ_STEREODEVS %m\n", __func__);
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stereo = 0;
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}
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usable = devmask & stereo;
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if (usable == 0) {
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lt_info("%s: devmask: %08x stereo: %08x, no usable dev :-(\n",
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__func__, devmask, stereo);
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close(mixer_fd);
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mixer_fd = -1;
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return 0; /* TODO: should we treat this as error? */
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}
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/* __builtin_popcount needs GCC, it counts the set bits... */
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if (__builtin_popcount (usable) != 1) {
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/* TODO: this code is not yet tested as I have only single-mixer devices... */
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lt_info("%s: more than one mixer control: devmask %08x stereo %08x\n"
|
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"%s: querying MIX_NUMBER environment variable...\n",
|
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__func__, devmask, stereo, __func__);
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const char *tmp = getenv("MIX_NUMBER");
|
||||
if (tmp)
|
||||
mixer_num = atoi(tmp);
|
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lt_info("%s: mixer_num is %d -> device %08x\n",
|
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__func__, mixer_num, (mixer_num >= 0) ? (1 << mixer_num) : 0);
|
||||
/* no error checking, you'd better know what you are doing... */
|
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} else {
|
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mixer_num = 0;
|
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while (!(usable & 0x01)) {
|
||||
mixer_num++;
|
||||
usable >>= 1;
|
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}
|
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}
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setVolume(volume, volume);
|
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|
||||
return 0;
|
||||
}
|
||||
|
||||
int cAudio::WriteClip(unsigned char *buffer, int size)
|
||||
{
|
||||
int ret;
|
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// lt_debug("cAudio::%s\n", __FUNCTION__);
|
||||
if (clipfd < 0) {
|
||||
lt_info("%s: clipfd not yet opened\n", __FUNCTION__);
|
||||
return -1;
|
||||
}
|
||||
ret = write(clipfd, buffer, size);
|
||||
if (ret < 0)
|
||||
lt_info("%s: write error (%m)\n", __FUNCTION__);
|
||||
return ret;
|
||||
};
|
||||
|
||||
int cAudio::StopClip()
|
||||
{
|
||||
lt_debug("%s\n", __FUNCTION__);
|
||||
if (clipfd < 0) {
|
||||
lt_info("%s: clipfd not yet opened\n", __FUNCTION__);
|
||||
return -1;
|
||||
}
|
||||
close(clipfd);
|
||||
clipfd = -1;
|
||||
if (mixer_fd >= -1) {
|
||||
close(mixer_fd);
|
||||
mixer_fd = -1;
|
||||
}
|
||||
setVolume(volume, volume);
|
||||
return 0;
|
||||
};
|
||||
|
||||
void cAudio::getAudioInfo(int &type, int &layer, int &freq, int &bitrate, int &mode)
|
||||
{
|
||||
lt_debug("%s\n", __FUNCTION__);
|
||||
type = 0;
|
||||
layer = 0;
|
||||
freq = 0;
|
||||
bitrate = 0;
|
||||
mode = 0;
|
||||
#if 0
|
||||
unsigned int atype;
|
||||
static const int freq_mpg[] = {44100, 48000, 32000, 0};
|
||||
static const int freq_ac3[] = {48000, 44100, 32000, 0};
|
||||
scratchl2 i;
|
||||
if (ioctl(fd, MPEG_AUD_GET_DECTYP, &atype) < 0)
|
||||
perror("cAudio::getAudioInfo MPEG_AUD_GET_DECTYP");
|
||||
if (ioctl(fd, MPEG_AUD_GET_STATUS, &i) < 0)
|
||||
perror("cAudio::getAudioInfo MPEG_AUD_GET_STATUS");
|
||||
|
||||
type = atype;
|
||||
#if 0
|
||||
/* this does not work, some of the values are negative?? */
|
||||
AMPEGStatus A;
|
||||
memcpy(&A, &i.word00, sizeof(i.word00));
|
||||
layer = A.audio_mpeg_layer;
|
||||
mode = A.audio_mpeg_mode;
|
||||
bitrate = A.audio_mpeg_bitrate;
|
||||
switch(A.audio_mpeg_frequency)
|
||||
#endif
|
||||
/* layer and bitrate are not used anyway... */
|
||||
layer = 0; //(i.word00 >> 17) & 3;
|
||||
bitrate = 0; //(i.word00 >> 12) & 3;
|
||||
switch (type)
|
||||
{
|
||||
case 0: /* MPEG */
|
||||
mode = (i.word00 >> 6) & 3;
|
||||
freq = freq_mpg[(i.word00 >> 10) & 3];
|
||||
break;
|
||||
case 1: /* AC3 */
|
||||
mode = (i.word00 >> 28) & 7;
|
||||
freq = freq_ac3[(i.word00 >> 16) & 3];
|
||||
break;
|
||||
default:
|
||||
mode = 0;
|
||||
freq = 0;
|
||||
}
|
||||
//fprintf(stderr, "type: %d layer: %d freq: %d bitrate: %d mode: %d\n", type, layer, freq, bitrate, mode);
|
||||
#endif
|
||||
};
|
||||
|
||||
void cAudio::SetSRS(int /*iq_enable*/, int /*nmgr_enable*/, int /*iq_mode*/, int /*iq_level*/)
|
||||
{
|
||||
lt_debug("%s\n", __FUNCTION__);
|
||||
};
|
||||
|
||||
void cAudio::SetHdmiDD(bool enable)
|
||||
{
|
||||
const char *opt[] = { "pcm", "spdif" };
|
||||
lt_debug("%s %d\n", __func__, enable);
|
||||
proc_put("/proc/stb/hdmi/audio_source", opt[enable], strlen(opt[enable]));
|
||||
}
|
||||
|
||||
void cAudio::SetSpdifDD(bool enable)
|
||||
{
|
||||
lt_debug("%s %d\n", __func__, enable);
|
||||
setBypassMode(!enable);
|
||||
}
|
||||
|
||||
void cAudio::ScheduleMute(bool On)
|
||||
{
|
||||
lt_debug("%s %d\n", __FUNCTION__, On);
|
||||
}
|
||||
|
||||
void cAudio::EnableAnalogOut(bool enable)
|
||||
{
|
||||
lt_debug("%s %d\n", __FUNCTION__, enable);
|
||||
}
|
||||
|
||||
#define AUDIO_BYPASS_ON 0
|
||||
#define AUDIO_BYPASS_OFF 1
|
||||
void cAudio::setBypassMode(bool disable)
|
||||
{
|
||||
const char *opt[] = { "passthrough", "downmix" };
|
||||
lt_debug("%s %d\n", __func__, disable);
|
||||
proc_put("/proc/stb/audio/ac3", opt[disable], strlen(opt[disable]));
|
||||
}
|
||||
|
||||
void cAudio::openMixers(void)
|
||||
{
|
||||
if (!mixerAnalog)
|
||||
mixerAnalog = new mixerVolume("Analog", "1");
|
||||
if (!mixerHDMI)
|
||||
mixerHDMI = new mixerVolume("HDMI", "1");
|
||||
if (!mixerSPDIF)
|
||||
mixerSPDIF = new mixerVolume("SPDIF", "1");
|
||||
}
|
||||
|
||||
void cAudio::closeMixers(void)
|
||||
{
|
||||
delete mixerAnalog;
|
||||
delete mixerHDMI;
|
||||
delete mixerSPDIF;
|
||||
mixerAnalog = mixerHDMI = mixerSPDIF = NULL;
|
||||
}
|
||||
|
||||
void cAudio::setMixerVolume(const char *name, long value, bool remember)
|
||||
{
|
||||
if (!strcmp(name, "Analog")) {
|
||||
mixerAnalog->setVolume(value);
|
||||
if (remember)
|
||||
volumeAnalog = value;
|
||||
}
|
||||
if (!strcmp(name, "HDMI")) {
|
||||
mixerHDMI->setVolume(value);
|
||||
if (remember)
|
||||
volumeHDMI = value;
|
||||
}
|
||||
if (!strcmp(name, "SPDIF")) {
|
||||
mixerSPDIF->setVolume(value);
|
||||
if (remember)
|
||||
volumeSPDIF = value;
|
||||
}
|
||||
}
|
||||
|
||||
void cAudio::muteMixers(bool m)
|
||||
{
|
||||
if (m && !mixersMuted) {
|
||||
mixersMuted = true;
|
||||
setMixerVolume("Analog", 0, false);
|
||||
setMixerVolume("HDMI", 0, false);
|
||||
setMixerVolume("SPDIF", 0, false);
|
||||
} else if (!m && mixersMuted) {
|
||||
mixersMuted = false;
|
||||
setMixerVolume("Analog", volumeAnalog, false);
|
||||
setMixerVolume("HDMI", volumeHDMI, false);
|
||||
setMixerVolume("SPDIF", volumeSPDIF, false);
|
||||
}
|
||||
}
|
||||
Reference in New Issue
Block a user