Ejemplos de gst_v4l2_object_decide_allocation en C++ (Cpp)

Ejemplo n.º 1

Archivo: gstv4l2transform.c Proyecto: BigBrother-International/gst-plugins-good

static gboolean
gst_v4l2_transform_decide_allocation (GstBaseTransform * trans,
    GstQuery * query)
{
  GstV4l2Transform *self = GST_V4L2_TRANSFORM (trans);
  gboolean ret = FALSE;

  GST_DEBUG_OBJECT (self, "called");

  if (gst_v4l2_object_decide_allocation (self->v4l2capture, query)) {
    GstBufferPool *pool = GST_BUFFER_POOL (self->v4l2capture->pool);

    ret = GST_BASE_TRANSFORM_CLASS (parent_class)->decide_allocation (trans,
        query);

    if (!gst_buffer_pool_set_active (pool, TRUE))
      goto activate_failed;
  }

  return ret;

activate_failed:
  GST_ELEMENT_ERROR (self, RESOURCE, SETTINGS,
      ("failed to activate bufferpool"), ("failed to activate bufferpool"));
  return TRUE;
}

Ejemplo n.º 2

Archivo: gstv4l2videodec.c Proyecto: Kurento/gst-plugins-good

static gboolean
gst_v4l2_video_dec_decide_allocation (GstVideoDecoder * decoder,
    GstQuery * query)
{
  GstV4l2VideoDec *self = GST_V4L2_VIDEO_DEC (decoder);
  GstClockTime latency;
  gboolean ret = FALSE;

  if (gst_v4l2_object_decide_allocation (self->v4l2capture, query))
    ret = GST_VIDEO_DECODER_CLASS (parent_class)->decide_allocation (decoder,
        query);

  latency = self->v4l2capture->min_buffers * self->v4l2capture->duration;
  gst_video_decoder_set_latency (decoder, latency, latency);

  return ret;
}

Ejemplo n.º 3

Archivo: gstv4l2src.c Proyecto: DylanZA/gst-plugins-good

static gboolean
gst_v4l2src_decide_allocation (GstBaseSrc * bsrc, GstQuery * query)
{
  GstV4l2Src *src = GST_V4L2SRC (bsrc);
  gboolean ret = TRUE;

  if (src->pending_set_fmt) {
    GstCaps *caps = gst_pad_get_current_caps (GST_BASE_SRC_PAD (bsrc));

    if (!gst_v4l2_object_stop (src->v4l2object))
      return FALSE;
    ret = gst_v4l2src_set_format (src, caps);
    gst_caps_unref (caps);
    src->pending_set_fmt = FALSE;
  }

  if (ret) {
    ret = gst_v4l2_object_decide_allocation (src->v4l2object, query);
    if (ret)
      ret = GST_BASE_SRC_CLASS (parent_class)->decide_allocation (bsrc, query);
  }

  if (ret) {
    if (!gst_buffer_pool_set_active (src->v4l2object->pool, TRUE))
      goto activate_failed;
  }

  return ret;

activate_failed:
  {
    GST_ELEMENT_ERROR (src, RESOURCE, SETTINGS,
        (_("Failed to allocate required memory.")),
        ("Buffer pool activation failed"));
    return FALSE;
  }
}

Ejemplo n.º 4

Archivo: gstv4l2src.c Proyecto: vatavuserban/gst-plugins-good

static gboolean
gst_v4l2src_decide_allocation (GstBaseSrc * bsrc, GstQuery * query)
{
  GstV4l2Src *src = GST_V4L2SRC (bsrc);
  gboolean ret = FALSE;

  if (gst_v4l2_object_decide_allocation (src->v4l2object, query))
    ret = GST_BASE_SRC_CLASS (parent_class)->decide_allocation (bsrc, query);

  if (ret) {
    if (!gst_buffer_pool_set_active (src->v4l2object->pool, TRUE))
      goto activate_failed;
  }

  return ret;

activate_failed:
  {
    GST_ELEMENT_ERROR (src, RESOURCE, SETTINGS,
        (_("Failed to allocate required memory.")),
        ("Buffer pool activation failed"));
    return FALSE;
  }
}

Ejemplo n.º 5

Archivo: gstv4l2videodec.c Proyecto: hizukiayaka/gst-plugins-good

static gboolean
gst_v4l2_video_dec_decide_allocation (GstVideoDecoder * decoder,
    GstQuery * query)
{
  GstV4l2VideoDec *self = GST_V4L2_VIDEO_DEC (decoder);
  GstClockTime latency;
  gboolean ret = FALSE;

  if (gst_v4l2_object_decide_allocation (self->v4l2capture, query))
    ret = GST_VIDEO_DECODER_CLASS (parent_class)->decide_allocation (decoder,
        query);

  if (GST_CLOCK_TIME_IS_VALID (self->v4l2capture->duration)) {
    latency = self->v4l2capture->min_buffers * self->v4l2capture->duration;
    GST_DEBUG_OBJECT (self, "Setting latency: %" GST_TIME_FORMAT " (%"
        G_GUINT32_FORMAT " * %" G_GUINT64_FORMAT, GST_TIME_ARGS (latency),
        self->v4l2capture->min_buffers, self->v4l2capture->duration);
    gst_video_decoder_set_latency (decoder, latency, latency);
  } else {
    GST_WARNING_OBJECT (self, "Duration invalid, not setting latency");
  }

  return ret;
}