C++ (Cpp) droid_media_buffer_create_from_raw_data示例

示例#1

文件： gstdroidmediabuffer.c 项目： mlehtima/gst-droid

GstMemory *
gst_droid_media_buffer_allocator_alloc_from_data (GstAllocator * allocator,
    GstVideoInfo * info, DroidMediaData * data, DroidMediaBufferCallbacks * cb)
{
  GstDroidMediaBufferMemory *mem;
  DroidMediaBuffer *buffer;
  int format;
  GstDroidMediaBufferAllocator *alloc;

  if (!GST_IS_DROID_MEDIA_BUFFER_ALLOCATOR (allocator)) {
    GST_WARNING_OBJECT (allocator,
        "allocator is not the correct allocator for droidmediabuffer");
    return NULL;
  }

  alloc = (GstDroidMediaBufferAllocator *) allocator;

  if (info->finfo->format == GST_VIDEO_FORMAT_YV12) {
    format = alloc->c.HAL_PIXEL_FORMAT_YV12;
  } else if (info->finfo->format == GST_VIDEO_FORMAT_NV21) {
    format = alloc->c.HAL_PIXEL_FORMAT_YCrCb_420_SP;
  } else {
    GST_WARNING_OBJECT (allocator,
        "Unknown GStreamer format %s",
        gst_video_format_to_string (info->finfo->format));
    return NULL;
  }

  mem = g_slice_new0 (GstDroidMediaBufferMemory);

  buffer =
      droid_media_buffer_create_from_raw_data (info->width, info->height,
      GST_VIDEO_INFO_COMP_STRIDE (info, 0),
      GST_VIDEO_INFO_COMP_STRIDE (info, 1), format, data, cb);
  if (!buffer) {
    GST_ERROR_OBJECT (allocator, "failed to acquire media buffer");
    g_slice_free (GstDroidMediaBufferMemory, mem);
    return NULL;
  }

  mem->buffer = buffer;

  gst_memory_init (GST_MEMORY_CAST (mem),
      GST_MEMORY_FLAG_NO_SHARE | GST_MEMORY_FLAG_NOT_MAPPABLE, allocator, NULL,
      0, 0, 0, 0);

  GST_DEBUG_OBJECT (allocator, "alloc %p", mem);

  return GST_MEMORY_CAST (mem);
}

示例#2

文件： gstdroidmediabuffer.c 项目： sailfishos/gst-droid

GstMemory *
gst_droid_media_buffer_allocator_alloc_from_data (GstAllocator * allocator,
    GstVideoInfo * info, DroidMediaData * data, DroidMediaBufferCallbacks * cb)
{
  GstDroidMediaBufferMemory *mem;
  DroidMediaBuffer *buffer;
  DroidMediaBufferInfo droid_info;
  int format_index;

  if (!GST_IS_DROID_MEDIA_BUFFER_ALLOCATOR (allocator)) {
    GST_WARNING_OBJECT (allocator,
        "allocator is not the correct allocator for droidmediabuffer");
    return NULL;
  }

  format_index =
      gst_droid_media_buffer_index_of_gst_format (info->finfo->format);

  if (format_index == GST_DROID_MEDIA_BUFFER_FORMAT_COUNT) {
    GST_WARNING_OBJECT (allocator,
        "Unknown GStreamer format %s",
        gst_video_format_to_string (info->finfo->format));
    return NULL;
  }

  buffer =
      droid_media_buffer_create_from_raw_data (info->width, info->height,
      GST_VIDEO_INFO_COMP_STRIDE (info, 0),
      GST_VIDEO_INFO_COMP_STRIDE (info, 1),
      gst_droid_media_buffer_formats[format_index].hal_format, data, cb);
  if (!buffer) {
    GST_ERROR_OBJECT (allocator, "failed to acquire media buffer");
    return NULL;
  }

  droid_media_buffer_get_info (buffer, &droid_info);

  mem = gst_droid_media_buffer_allocator_alloc_from_buffer (allocator, buffer,
      format_index, info->width, info->height, droid_info.stride);

  GST_DEBUG_OBJECT (allocator, "alloc %p", mem);

  return GST_MEMORY_CAST (mem);
}