Exemple #1
0
gboolean
gst_droidcamsrc_dev_start (GstDroidCamSrcDev * dev, gboolean apply_settings)
{
  gboolean ret = FALSE;
  GstDroidCamSrc *src = GST_DROIDCAMSRC (GST_PAD_PARENT (dev->imgsrc->pad));

  g_rec_mutex_lock (dev->lock);

  if (dev->running) {
    GST_WARNING_OBJECT (src, "preview is already running");
    ret = TRUE;
    goto out;
  }

  GST_DEBUG_OBJECT (src, "dev start");

  if (!gst_buffer_pool_set_active (dev->pool, TRUE)) {
    GST_ERROR_OBJECT (src, "Failed to activate buffer pool");
    goto out;
  }

  if (apply_settings) {
    gst_droidcamsrc_apply_mode_settings (src, SET_ONLY);
  }

  /* now set params */
  if (!gst_droidcamsrc_dev_set_params (dev)) {
    goto out;
  }

  if (dev->use_raw_data) {
    GST_INFO_OBJECT (src, "Using raw data mode");
    droid_media_camera_set_preview_callback_flags (dev->cam,
        dev->c.CAMERA_FRAME_CALLBACK_FLAG_CAMERA);
  } else {
    GST_INFO_OBJECT (src, "Using native buffers mode");
    droid_media_camera_set_preview_callback_flags (dev->cam,
        dev->c.CAMERA_FRAME_CALLBACK_FLAG_NOOP);
  }

  if (!droid_media_camera_start_preview (dev->cam)) {
    GST_ERROR_OBJECT (src, "error starting preview");
    goto out;
  }

  dev->running = TRUE;

  ret = TRUE;

out:
  if (ret != TRUE) {
    gst_buffer_pool_set_active (dev->pool, FALSE);
  }

  g_rec_mutex_unlock (dev->lock);
  return ret;
}
Exemple #2
0
gboolean
gst_droidcamsrc_mode_negotiate (GstDroidCamSrcMode * mode, GstPad * pad)
{
  gboolean ret;
  gboolean running;

  g_rec_mutex_lock (&mode->src->dev_lock);

  running = gst_droidcamsrc_dev_is_running (mode->src->dev);

  if (running && pad == mode->vfsrc) {
    /* stop preview */
    gst_droidcamsrc_dev_stop (mode->src->dev);
  }

  gst_droidcamsrc_mode_negotiate_pad (mode, pad, FALSE);

  if (pad == mode->vfsrc) {
    /* start which will also apply the settings */
    if (running) {
      ret = gst_droidcamsrc_dev_start (mode->src->dev, FALSE);
    } else {
      ret = gst_droidcamsrc_apply_params (mode->src);
    }

    /* now update max-zoom that we have a preview size */
    gst_droidcamsrc_dev_update_params (mode->src->dev);
    gst_droidcamsrc_update_max_zoom (mode->src);
  } else {
    /* apply settings */
    ret = gst_droidcamsrc_dev_set_params (mode->src->dev);
  }

  g_rec_mutex_unlock (&mode->src->dev_lock);

  return ret;
}