C++ (Cpp) gst_buffer_add_gl_sync_meta 예제들

예제 #1

파일: gstglsyncmeta.c 프로젝트: Distrotech/gst-plugins-bad

static gboolean
_gst_gl_sync_meta_transform (GstBuffer * dest, GstMeta * meta,
    GstBuffer * buffer, GQuark type, gpointer data)
{
  GstGLSyncMeta *dmeta, *smeta;

  smeta = (GstGLSyncMeta *) meta;

  if (GST_META_TRANSFORM_IS_COPY (type)) {
    GstMetaTransformCopy *copy = data;

    if (!copy->region) {
      /* only copy if the complete data is copied as well */
      dmeta = gst_buffer_add_gl_sync_meta (smeta->context, dest);

      if (!dmeta)
        return FALSE;

      GST_LOG ("copy sync object %p from meta %p to %p", smeta->glsync,
          smeta, dmeta);

      /* Setting a sync point here relies on GstBuffer copying
       * metas after data */
      gst_gl_sync_meta_set_sync_point (dmeta, smeta->context);
    }
  } else {
    /* return FALSE, if transform type is not supported */
    return FALSE;
  }

  return TRUE;
}

예제 #2

파일: gstglbufferpool.c 프로젝트: Haifen/gst-plugins-bad

/* This function handles GstBuffer creation */
static GstFlowReturn
gst_gl_buffer_pool_alloc (GstBufferPool * pool, GstBuffer ** buffer,
    GstBufferPoolAcquireParams * params)
{
  GstGLMemoryAllocator *alloc;
  GstGLBufferPool *glpool = GST_GL_BUFFER_POOL_CAST (pool);
  GstGLBufferPoolPrivate *priv = glpool->priv;
  GstBuffer *buf;

  if (!(buf = gst_buffer_new ())) {
    goto no_buffer;
  }
#if GST_GL_HAVE_PLATFORM_EGL
  if (priv->want_eglimage) {
    /* alloc and append memories, also add video_meta and
     * texture_upload_meta */
    if (!gst_egl_image_memory_setup_buffer (glpool->context,
            priv->gl_params->v_info, buf))
      goto egl_image_mem_create_failed;

    *buffer = buf;

    return GST_FLOW_OK;
  }
#endif

  alloc = GST_GL_MEMORY_ALLOCATOR (priv->allocator);
  if (!gst_gl_memory_setup_buffer (alloc, buf, priv->gl_params))
    goto mem_create_failed;

  if (priv->add_glsyncmeta)
    gst_buffer_add_gl_sync_meta (glpool->context, buf);

  *buffer = buf;

  return GST_FLOW_OK;

  /* ERROR */
no_buffer:
  {
    GST_WARNING_OBJECT (pool, "can't create image");
    return GST_FLOW_ERROR;
  }
mem_create_failed:
  {
    GST_WARNING_OBJECT (pool, "Could not create GL Memory");
    return GST_FLOW_ERROR;
  }

#if GST_GL_HAVE_PLATFORM_EGL
egl_image_mem_create_failed:
  {
    GST_WARNING_OBJECT (pool, "Could not create EGLImage Memory");
    return GST_FLOW_ERROR;
  }
#endif
}

예제 #3

파일: gstglbufferpool.c 프로젝트: thaytan/gst-plugins-base

/* This function handles GstBuffer creation */
static GstFlowReturn
gst_gl_buffer_pool_alloc (GstBufferPool * pool, GstBuffer ** buffer,
    GstBufferPoolAcquireParams * params)
{
  GstGLMemoryAllocator *alloc;
  GstGLBufferPool *glpool = GST_GL_BUFFER_POOL_CAST (pool);
  GstGLBufferPoolPrivate *priv = glpool->priv;
  GstBuffer *buf;

  if (!(buf = gst_buffer_new ())) {
    goto no_buffer;
  }

  alloc = GST_GL_MEMORY_ALLOCATOR (priv->allocator);
  if (!gst_gl_memory_setup_buffer (alloc, buf, priv->gl_params, NULL, NULL, 0))
    goto mem_create_failed;

  if (priv->add_glsyncmeta)
    gst_buffer_add_gl_sync_meta (glpool->context, buf);

  *buffer = buf;

  return GST_FLOW_OK;

  /* ERROR */
no_buffer:
  {
    GST_WARNING_OBJECT (pool, "can't create image");
    return GST_FLOW_ERROR;
  }
mem_create_failed:
  {
    GST_WARNING_OBJECT (pool, "Could not create GL Memory");
    return GST_FLOW_ERROR;
  }
}

예제 #4

파일: gstglbufferpool.c 프로젝트: ndufresne/gst-plugins-bad

/* This function handles GstBuffer creation */
static GstFlowReturn
gst_gl_buffer_pool_alloc (GstBufferPool * pool, GstBuffer ** buffer,
    GstBufferPoolAcquireParams * params)
{
  GstGLBufferPool *glpool = GST_GL_BUFFER_POOL_CAST (pool);
  GstGLBufferPoolPrivate *priv = glpool->priv;
  GstVideoInfo *info;
  GstVideoAlignment *valign;
  GstBuffer *buf;

  info = &priv->info;
  valign = &priv->valign;

  if (!(buf = gst_buffer_new ())) {
    goto no_buffer;
  }
#if GST_GL_HAVE_PLATFORM_EGL
  if (priv->want_eglimage) {
    /* alloc and append memories, also add video_meta and
     * texture_upload_meta */
    if (!gst_egl_image_memory_setup_buffer (glpool->context, info, buf))
      goto egl_image_mem_create_failed;

    *buffer = buf;

    return GST_FLOW_OK;
  }
#endif

  if (!gst_gl_memory_setup_buffer (glpool->context, priv->tex_target,
          &priv->params, info, valign, buf))
    goto mem_create_failed;

  if (priv->add_uploadmeta)
    gst_gl_upload_meta_add_to_buffer (glpool->upload, buf);

  if (priv->add_glsyncmeta)
    gst_buffer_add_gl_sync_meta (glpool->context, buf);

  *buffer = buf;

  return GST_FLOW_OK;

  /* ERROR */
no_buffer:
  {
    GST_WARNING_OBJECT (pool, "can't create image");
    return GST_FLOW_ERROR;
  }
mem_create_failed:
  {
    GST_WARNING_OBJECT (pool, "Could not create GL Memory");
    return GST_FLOW_ERROR;
  }

#if GST_GL_HAVE_PLATFORM_EGL
egl_image_mem_create_failed:
  {
    GST_WARNING_OBJECT (pool, "Could not create EGLImage Memory");
    return GST_FLOW_ERROR;
  }
#endif
}