stream_pvr.c

君正早期ucos系统(只有早期的才不没有打包成库),MPLAYER,文件系统,图片解码,浏览,电子书,录音,想学ucos,识货的人就下吧 russblock fmradio explore set

  }

  memset (&vt, 0, sizeof(vt));
  if (ioctl (pvr->dev_fd, VIDIOC_G_TUNER, &vt) < 0)
  {
    mp_msg (MSGT_OPEN, MSGL_ERR, "%s can't set tuner (%s).\n",
            LOG_LEVEL_V4L2, strerror (errno));
    return -1;
  }

  /* just a notification */
  if (!vt.signal)
    mp_msg (MSGT_OPEN, MSGL_ERR, "%s NO SIGNAL at frequency %d (%d)\n",
            LOG_LEVEL_V4L2, pvr->freq, vf.frequency);
  else
    mp_msg (MSGT_OPEN, MSGL_STATUS, "%s Got signal at frequency %d (%d)\n",
            LOG_LEVEL_V4L2, pvr->freq, vf.frequency);

  return 0;
}

static int
set_station_by_step (struct pvr_t *pvr, int step, int v4lAction) 
{
  if (!pvr || !pvr->stationlist.list) 
    return -1;

  if (pvr->stationlist.enabled >= abs (step))
  {
    int gotcha = 0;
    int chidx = pvr->chan_idx + step;

    while (!gotcha)
    {
      chidx = (chidx + pvr->stationlist.used) % pvr->stationlist.used;

      mp_msg (MSGT_OPEN, MSGL_DBG2,
              "%s Offset switch: current %d, enabled %d, step %d -> %d\n",
              LOG_LEVEL_V4L2, pvr->chan_idx,
              pvr->stationlist.enabled, step, chidx);

      if (!pvr->stationlist.list[chidx].enabled)
      {
        mp_msg (MSGT_OPEN, MSGL_DBG2,
                "%s Switch disabled to user station channel: %8s - freq: %8d - station: %s\n", LOG_LEVEL_V4L2, 
                pvr->stationlist.list[chidx].name,
                pvr->stationlist.list[chidx].freq,
                pvr->stationlist.list[chidx].station);
        chidx += FFSIGN (step);
      }
      else
        gotcha = 1;
    }

    pvr->freq = pvr->stationlist.list[chidx].freq;
    pvr->chan_idx_last = pvr->chan_idx;
    pvr->chan_idx = chidx;

    mp_msg (MSGT_OPEN, MSGL_INFO,
            "%s Switch to user station channel: %8s - freq: %8d - station: %s\n", LOG_LEVEL_V4L2, 
            pvr->stationlist.list[chidx].name,
            pvr->stationlist.list[chidx].freq,
            pvr->stationlist.list[chidx].station);

    if (v4lAction)
      return set_v4l2_freq (pvr);

    return (pvr->freq > 0) ? 0 : -1;
  }

  mp_msg (MSGT_OPEN, MSGL_ERR,
          "%s Ooops couldn't set freq by channel entry step %d to current %d, enabled %d\n", LOG_LEVEL_V4L2, 
          step, pvr->chan_idx, pvr->stationlist.enabled);

  return -1;
}

static int
set_station_by_channelname_or_freq (struct pvr_t *pvr, const char *channel,
                                    int freq, int v4lAction)
{
  int i = 0;

  if (!pvr || !pvr->stationlist.list) 
    return -1;

  if (0 >= pvr->stationlist.enabled)
  {
    mp_msg (MSGT_OPEN, MSGL_WARN,
            "%s No enabled station, cannot switch channel/frequency\n",
            LOG_LEVEL_V4L2);
    return -1;
  }

  if (channel)
  {
    /* select by channel */
    for (i = 0; i < pvr->stationlist.used ; i++)
    {
      if (!strcasecmp (pvr->stationlist.list[i].name, channel))
      {
        if (!pvr->stationlist.list[i].enabled)
        {
          mp_msg (MSGT_OPEN, MSGL_WARN,
                  "%s Switch disabled to user station channel: %8s - freq: %8d - station: %s\n", LOG_LEVEL_V4L2, 
                  pvr->stationlist.list[i].name,
                  pvr->stationlist.list[i].freq,
                  pvr->stationlist.list[i].station);

          return -1;
        }

        pvr->freq = pvr->stationlist.list[i].freq;
        pvr->chan_idx_last = pvr->chan_idx;
        pvr->chan_idx = i;
        break;
      }
    }
  }
  else if (freq >= 0)
  {
    /* select by freq */
    for (i = 0; i < pvr->stationlist.used; i++)
    {
      if (pvr->stationlist.list[i].freq == freq)
      {
        if (!pvr->stationlist.list[i].enabled)
        {
          mp_msg (MSGT_OPEN, MSGL_WARN,
                  "%s Switch disabled to user station channel: %8s - freq: %8d - station: %s\n", LOG_LEVEL_V4L2, 
                  pvr->stationlist.list[i].name,
                  pvr->stationlist.list[i].freq,
                  pvr->stationlist.list[i].station);
          
          return -1;
        }

        pvr->freq = pvr->stationlist.list[i].freq;
        pvr->chan_idx_last = pvr->chan_idx;
        pvr->chan_idx = i;
        break;
      }
    }
  }

  if (i >= pvr->stationlist.used)
  {
    if (channel)
      mp_msg (MSGT_OPEN, MSGL_WARN,
              "%s unable to find channel %s\n", LOG_LEVEL_V4L2, channel);
    else
      mp_msg (MSGT_OPEN, MSGL_WARN,
              "%s unable to find frequency %d\n", LOG_LEVEL_V4L2, freq);
    return -1;
  }

  mp_msg (MSGT_OPEN, MSGL_INFO,
          "%s Switch to user station channel: %8s - freq: %8d - station: %s\n", LOG_LEVEL_V4L2, 
          pvr->stationlist.list[i].name,
          pvr->stationlist.list[i].freq,
          pvr->stationlist.list[i].station);

  if (v4lAction)
    return set_v4l2_freq (pvr);

  return (pvr->freq > 0) ? 0 : -1;
}

static int 
force_freq_step (struct pvr_t *pvr, int step)
{
  int freq;

  if (!pvr) 
    return -1;

  freq = pvr->freq+step;

  if (freq)
  {
    mp_msg (MSGT_OPEN, MSGL_INFO,
            "%s Force Frequency %d + %d = %d \n", LOG_LEVEL_V4L2, 
            pvr->freq, step, freq);

    pvr->freq = freq;

    return set_v4l2_freq (pvr);
  }
  
  return -1;
}

static void
parse_encoder_options (struct pvr_t *pvr)
{
  if (!pvr)
    return;

  /* -pvr aspect=digit */
  if (pvr_param_aspect_ratio >= 0 && pvr_param_aspect_ratio <= 3)
    pvr->aspect = pvr_param_aspect_ratio;

  /* -pvr arate=x */
  if (pvr_param_sample_rate != 0)
  {
    switch (pvr_param_sample_rate)
    {
    case 32000:
      pvr->samplerate = V4L2_MPEG_AUDIO_SAMPLING_FREQ_32000;
      break;
    case 44100:
      pvr->samplerate = V4L2_MPEG_AUDIO_SAMPLING_FREQ_44100;
      break;
    case 48000:
      pvr->samplerate = V4L2_MPEG_AUDIO_SAMPLING_FREQ_48000;
      break;
    default:
      break;
    }
  }

  /* -pvr alayer=x */
  if (pvr_param_audio_layer == 1)
    pvr->layer = V4L2_MPEG_AUDIO_ENCODING_LAYER_1;
  else if (pvr_param_audio_layer == 2)
    pvr->layer = V4L2_MPEG_AUDIO_ENCODING_LAYER_2;
  else if (pvr_param_audio_layer == 3)
    pvr->layer = V4L2_MPEG_AUDIO_ENCODING_LAYER_3;

  /* -pvr abitrate=x */
  if (pvr_param_audio_bitrate != 0)
  {
    if (pvr->layer == V4L2_MPEG_AUDIO_ENCODING_LAYER_1)
    {
      switch (pvr_param_audio_bitrate)
      {
      case 32:
        pvr->audio_rate = V4L2_MPEG_AUDIO_L1_BITRATE_32K;
        break;
      case 64:
        pvr->audio_rate = V4L2_MPEG_AUDIO_L1_BITRATE_64K;
        break;
      case 96:
        pvr->audio_rate = V4L2_MPEG_AUDIO_L1_BITRATE_96K;
        break;
      case 128:
        pvr->audio_rate = V4L2_MPEG_AUDIO_L1_BITRATE_128K;
        break;
      case 160:
        pvr->audio_rate = V4L2_MPEG_AUDIO_L1_BITRATE_160K;
        break;
      case 192:
        pvr->audio_rate = V4L2_MPEG_AUDIO_L1_BITRATE_192K;
        break;
      case 224:
        pvr->audio_rate = V4L2_MPEG_AUDIO_L1_BITRATE_224K;
        break;
      case 256:
        pvr->audio_rate = V4L2_MPEG_AUDIO_L1_BITRATE_256K;
        break;
      case 288:
        pvr->audio_rate = V4L2_MPEG_AUDIO_L1_BITRATE_288K;
        break;
      case 320:
        pvr->audio_rate = V4L2_MPEG_AUDIO_L1_BITRATE_320K;
        break;
      case 352:
        pvr->audio_rate = V4L2_MPEG_AUDIO_L1_BITRATE_352K;
        break;
      case 384:
        pvr->audio_rate = V4L2_MPEG_AUDIO_L1_BITRATE_384K;
        break;
      case 416:
        pvr->audio_rate = V4L2_MPEG_AUDIO_L1_BITRATE_416K;
        break;
      case 448:
        pvr->audio_rate = V4L2_MPEG_AUDIO_L1_BITRATE_448K;
        break;
      default:
        break;
      }
    }
    
    else if (pvr->layer == V4L2_MPEG_AUDIO_ENCODING_LAYER_2)
    {
      switch (pvr_param_audio_bitrate)
      {
      case 32:
        pvr->audio_rate = V4L2_MPEG_AUDIO_L2_BITRATE_32K;
        break;
      case 48:
        pvr->audio_rate = V4L2_MPEG_AUDIO_L2_BITRATE_48K;
        break;
      case 56:
        pvr->audio_rate = V4L2_MPEG_AUDIO_L2_BITRATE_56K;
        break;
      case 64:
        pvr->audio_rate = V4L2_MPEG_AUDIO_L2_BITRATE_64K;
        break;
      case 80:
        pvr->audio_rate = V4L2_MPEG_AUDIO_L2_BITRATE_80K;
        break;
      case 96:
        pvr->audio_rate = V4L2_MPEG_AUDIO_L2_BITRATE_96K;
        break;
      case 112:
        pvr->audio_rate = V4L2_MPEG_AUDIO_L2_BITRATE_112K;
        break;
      case 128:
        pvr->audio_rate = V4L2_MPEG_AUDIO_L2_BITRATE_128K;
        break;
      case 160:
        pvr->audio_rate = V4L2_MPEG_AUDIO_L2_BITRATE_160K;
        break;
      case 192:
        pvr->audio_rate = V4L2_MPEG_AUDIO_L2_BITRATE_192K;
        break;
      case 224:
        pvr->audio_rate = V4L2_MPEG_AUDIO_L2_BITRATE_224K;
        break;
      case 256:
        pvr->audio_rate = V4L2_MPEG_AUDIO_L2_BITRATE_256K;
        break;
      case 320:
        pvr->audio_rate = V4L2_MPEG_AUDIO_L2_BITRATE_320K;
        break;
      case 384:
        pvr->audio_rate = V4L2_MPEG_AUDIO_L2_BITRATE_384K;
        break;
      default:
        break;
      }
    }

    else if (pvr->layer == V4L2_MPEG_AUDIO_ENCODING_LAYER_3)
    {
      switch (pvr_param_audio_bitrate)
      {
      case 32:
        pvr->audio_rate = V4L2_MPEG_AUDIO_L3_BITRATE_32K;
        break;
      case 40:
        pvr->audio_rate = V4L2_MPEG_AUDIO_L3_BITRATE_40K;
        break;
      case 48:
        pvr->audio_rate = V4L2_MPEG_AUDIO_L3_BITRATE_48K;
        break;
      case 56:
        pvr->audio_rate = V4L2_MPEG_AUDIO_L3_BITRATE_56K;
        break;
      case 64:
        pvr->audio_rate = V4L2_MPEG_AUDIO_L3_BITRATE_64K;
        break;
      case 80:
        pvr->audio_rate = V4L2_MPEG_AUDIO_L3_BITRATE_80K;
        break;
      case 96:
        pvr->audio_rate = V4L2_MPEG_AUDIO_L3_BITRATE_96K;
        break;
      case 112:
        pvr->audio_rate = V4L2_MPEG_AUDIO_L3_BITRATE_112K;
        break;
      case 128:
        pvr->audio_rate = V4L2_MPEG_AUDIO_L3_BITRATE_128K;
        break;
      case 160:
        pvr->audio_rate = V4L2_MPEG_AUDIO_L3_BITRATE_160K;
        break;
      case 192:
        pvr->audio_rate = V4L2_MPEG_AUDIO_L3_BITRATE_192K;
        break;
      case 224:
        pvr->audio_rate = V4L2_MPEG_AUDIO_L3_BITRATE_224K;
        break;
      case 256:
        pvr->audio_rate = V4L2_MPEG_AUDIO_L3_BITRATE_256K;
        break;
      case 320:
        pvr->audio_rate = V4L2_MPEG_AUDIO_L3_BITRATE_320K;
        break;
      default:
        break;
      }
    }
  }
  
  /* -pvr amode=x */
  if (pvr_param_audio_mode)
  {
    if (!strcmp (pvr_param_audio_mode, PVR_AUDIO_MODE_ARG_STEREO))
      pvr->audio_mode = V4L2_MPEG_AUDIO_MODE_STEREO;
    else if (!strcmp (pvr_param_audio_mode, PVR_AUDIO_MODE_ARG_JOINT_STEREO))
      pvr->audio_mode = V4L2_MPEG_AUDIO_MODE_JOINT_STEREO;
    else if (!strcmp (pvr_param_audio_mode, PVR_AUDIO_MODE_ARG_DUAL))
      pvr->audio_mode = V4L2_MPEG_AUDIO_MODE_DUAL;
    else if (!strcmp (pvr_param_audio_mode, PVR_AUDIO_MODE_ARG_MONO))
      pvr->audio_mode = V4L2_MPEG_AUDIO_MODE_MONO;
  }

  /* -pvr vbitrate=x */
  if (pvr_param_bitrate)
    pvr->bitrate = pvr_param_bitrate;

  /* -pvr vmode=x */
  if (pvr_param_bitrate_mode)
  {
    if (!strcmp (pvr_param_bitrate_mode, PVR_VIDEO_BITRATE_MODE_ARG_VBR))
      pvr->bitrate_mode = V4L2_MPEG_VIDEO_BITRATE_MODE_VBR;
    else if (!strcmp (pvr_param_bitrate_mode, PVR_VIDEO_BITRATE_MODE_ARG_CBR))
      pvr->bitrate_mode = V4L2_MPEG_VIDEO_BITRATE_MODE_CBR;
  }

  /* -pvr vpeak=x */
  if (pvr_param_bitrate_peak)
    pvr->bitrate_peak = pvr_param_bitrate_peak;

  /* -pvr fmt=x */
  if (pvr_param_stream_type)
  {
    if (!strcmp (pvr_param_stream_type, PVR_VIDEO_STREAM_TYPE_PS))
      pvr->stream_type = V4L2_MPEG_STREAM_TYPE_MPEG2_PS;
    else if (!strcmp (pvr_param_stream_type, PVR_VIDEO_STREAM_TYPE_TS))
      pvr->stream_type = V4L2_MPEG_STREAM_TYPE_MPEG2_TS;
    else if (!strcmp (pvr_param_stream_type, PVR_VIDEO_STREAM_TYPE_MPEG1))
      pvr->stream_type = V4L2_MPEG_STREAM_TYPE_MPEG1_SS;
    else if (!strcmp (pvr_param_stream_type, PVR_VIDEO_STREAM_TYPE_DVD))
      pvr->stream_type = V4L2_MPEG_STREAM_TYPE_MPEG2_DVD;
    else if (!strcmp (pvr_param_stream_type, PVR_VIDEO_STREAM_TYPE_VCD))
      pvr->stream_type = V4L2_MPEG_STREAM_TYPE_MPEG1_VCD;
    else if (!strcmp (pvr_param_stream_type, PVR_VIDEO_STREAM_TYPE_SVCD))
      pvr->stream_type = V4L2_MPEG_STREAM_TYPE_MPEG2_SVCD;
  }
}

static void
add_v4l2_ext_control (struct v4l2_ext_control *ctrl,
                      uint32_t id, int32_t value)
{
  ctrl->id = id; 
  ctrl->value = value;
}

static int
set_encoder_settings (struct pvr_t *pvr)
{
  struct v4l2_ext_control *ext_ctrl = NULL;
  struct v4l2_ext_controls ctrls;
  uint32_t count = 0;
  
  if (!pvr)
    return -1;
  
  if (pvr->dev_fd < 0)
    return -1;

  ext_ctrl = (struct v4l2_ext_control *)
    malloc (PVR_MAX_CONTROLS * sizeof (struct v4l2_ext_control)); 

  add_v4l2_ext_control (&ext_ctrl[count++], V4L2_CID_MPEG_VIDEO_ASPECT,
                        pvr->aspect);

  add_v4l2_ext_control (&ext_ctrl[count++], V4L2_CID_MPEG_AUDIO_SAMPLING_FREQ,
                        pvr->samplerate);

  add_v4l2_ext_control (&ext_ctrl[count++], V4L2_CID_MPEG_AUDIO_ENCODING,
                        pvr->layer);

  switch (pvr->layer)
  {
  case V4L2_MPEG_AUDIO_ENCODING_LAYER_1:
    add_v4l2_ext_control (&ext_ctrl[count++], V4L2_CID_MPEG_AUDIO_L1_BITRATE,
                          pvr->audio_rate);
    break;
  case V4L2_MPEG_AUDIO_ENCODING_LAYER_2:
    add_v4l2_ext_control (&ext_ctrl[count++], V4L2_CID_MPEG_AUDIO_L2_BITRATE,
                          pvr->audio_rate);
    break;
  case V4L2_MPEG_AUDIO_ENCODING_LAYER_3:
    add_v4l2_ext_control (&ext_ctrl[count++], V4L2_CID_MPEG_AUDIO_L3_BITRATE,
                          pvr->audio_rate);
    break;
  default:
    break;
  }

  add_v4l2_ext_control (&ext_ctrl[count++], V4L2_CID_MPEG_AUDIO_MODE,
                        pvr->audio_mode);

  add_v4l2_ext_control (&ext_ctrl[count++], V4L2_CID_MPEG_VIDEO_BITRATE,
                        pvr->bitrate);

  add_v4l2_ext_control (&ext_ctrl[count++], V4L2_CID_MPEG_VIDEO_BITRATE_PEAK,
                        pvr->bitrate_peak);

  add_v4l2_ext_control (&ext_ctrl[count++], V4L2_CID_MPEG_VIDEO_BITRATE_MODE,
                        pvr->bitrate_mode);

  add_v4l2_ext_control (&ext_ctrl[count++], V4L2_CID_MPEG_STREAM_TYPE,
                        pvr->stream_type);

  /* set new encoding settings */
  ctrls.ctrl_class = V4L2_CTRL_CLASS_MPEG; 
  ctrls.count = count; 
  ctrls.controls = ext_ctrl;
  
  if (ioctl (pvr->dev_fd, VIDIOC_S_EXT_CTRLS, &ctrls) < 0)
  {
    mp_msg (MSGT_OPEN, MSGL_ERR, "%s Error setting MPEG controls (%s).\n",
            LOG_LEVEL_ENCODER, strerror (errno));
    free (ext_ctrl); 
    return -1;
  }

  free (ext_ctrl); 

  return 0;
}

static void
parse_v4l2_tv_options (struct pvr_t *pvr)
{
  if (!pvr)
    return;

  /* Create our station/channel list */
  parse_setup_stationlist (pvr);

  if (pvr->param_channel)
  {
    if (set_station_by_channelname_or_freq (pvr, pvr->param_channel,
                                            -1, 0) >= 0)
    {
      if (stream_tv_defaults.freq)
      {
        mp_msg (MSGT_OPEN, MSGL_HINT,
                "%s tv param freq %s is overwritten by channel setting freq %d\n", LOG_LEVEL_V4L2, 
                stream_tv_defaults.freq, pvr->freq);
      }
    }
  }
  
  if (pvr->freq < 0 && stream_tv_defaults.freq)
  {
    mp_msg (MSGT_OPEN, MSGL_HINT, "%s tv param freq %s is used directly\n",
            LOG_LEVEL_V4L2, stream_tv_defaults.freq);

    if (set_station_by_channelname_or_freq (pvr, NULL,
                                            atoi (stream_tv_defaults.freq), 0)<0)
      {
        mp_msg (MSGT_OPEN, MSGL_WARN,
                "%s tv param freq %s invalid to set station\n",
                LOG_LEVEL_V4L2, stream_tv_defaults.freq);
      }
  }
  
  if (stream_tv_defaults.device)
  {
    if (pvr->video_dev)
      free (pvr->video_dev);
    pvr->video_dev = strdup (stream_tv_defaults.device);
  }
  
  if (stream_tv_defaults.noaudio)
    pvr->mute = stream_tv_defaults.noaudio;

  if (stream_tv_defaults.input)
    pvr->input = stream_tv_defaults.input;
  
  if (stream_tv_defaults.normid)
    pvr->normid = stream_tv_defaults.normid;
  
  if (stream_tv_defaults.brightness)
    pvr->brightness = stream_tv_defaults.brightness;
  
  if (stream_tv_defaults.contrast)
    pvr->contrast = stream_tv_defaults.contrast;
  
  if (stream_tv_defaults.hue)
    pvr->hue = stream_tv_defaults.hue;
  
  if (stream_tv_defaults.saturation)
    pvr->saturation = stream_tv_defaults.saturation;

  if (stream_tv_defaults.width)
    pvr->width = stream_tv_defaults.width;

  if (stream_tv_defaults.height)
    pvr->height = stream_tv_defaults.height;
}

static int
set_v4l2_settings (struct pvr_t *pvr)
{