static GstFlowReturn
gst_inter_video_src_create (GstBaseSrc * src, guint64 offset, guint size,
GstBuffer ** buf)
{
GstInterVideoSrc *intervideosrc = GST_INTER_VIDEO_SRC (src);
GstBuffer *buffer;
GST_DEBUG_OBJECT (intervideosrc, "create");
buffer = NULL;
g_mutex_lock (intervideosrc->surface->mutex);
if (intervideosrc->surface->video_buffer) {
buffer = gst_buffer_ref (intervideosrc->surface->video_buffer);
intervideosrc->surface->video_buffer_count++;
if (intervideosrc->surface->video_buffer_count >= 30) {
gst_buffer_unref (intervideosrc->surface->video_buffer);
intervideosrc->surface->video_buffer = NULL;
}
}
g_mutex_unlock (intervideosrc->surface->mutex);
if (buffer == NULL) {
GstMapInfo map;
buffer =
gst_buffer_new_and_alloc (GST_VIDEO_INFO_SIZE (&intervideosrc->info));
gst_buffer_map (buffer, &map, GST_MAP_WRITE);
memset (map.data, 16, GST_VIDEO_INFO_COMP_STRIDE (&intervideosrc->info, 0) *
GST_VIDEO_INFO_COMP_HEIGHT (&intervideosrc->info, 0));
memset (map.data + GST_VIDEO_INFO_COMP_OFFSET (&intervideosrc->info, 1),
128,
2 * GST_VIDEO_INFO_COMP_STRIDE (&intervideosrc->info, 1) *
GST_VIDEO_INFO_COMP_HEIGHT (&intervideosrc->info, 1));
gst_buffer_unmap (buffer, &map);
}
buffer = gst_buffer_make_writable (buffer);
GST_BUFFER_TIMESTAMP (buffer) =
gst_util_uint64_scale_int (GST_SECOND * intervideosrc->n_frames,
GST_VIDEO_INFO_FPS_D (&intervideosrc->info),
GST_VIDEO_INFO_FPS_N (&intervideosrc->info));
GST_DEBUG_OBJECT (intervideosrc, "create ts %" GST_TIME_FORMAT,
GST_TIME_ARGS (GST_BUFFER_TIMESTAMP (buffer)));
GST_BUFFER_DURATION (buffer) =
gst_util_uint64_scale_int (GST_SECOND * (intervideosrc->n_frames + 1),
GST_VIDEO_INFO_FPS_D (&intervideosrc->info),
GST_VIDEO_INFO_FPS_N (&intervideosrc->info)) -
GST_BUFFER_TIMESTAMP (buffer);
GST_BUFFER_OFFSET (buffer) = intervideosrc->n_frames;
GST_BUFFER_OFFSET_END (buffer) = -1;
GST_BUFFER_FLAG_UNSET (buffer, GST_BUFFER_FLAG_DISCONT);
if (intervideosrc->n_frames == 0) {
GST_BUFFER_FLAG_SET (buffer, GST_BUFFER_FLAG_DISCONT);
}
intervideosrc->n_frames++;
*buf = buffer;
return GST_FLOW_OK;
}
static void
gst_deinterlace_method_setup_impl (GstDeinterlaceMethod * self,
GstVideoInfo * vinfo)
{
gint i;
GstDeinterlaceMethodClass *klass = GST_DEINTERLACE_METHOD_GET_CLASS (self);
self->vinfo = vinfo;
self->deinterlace_frame = NULL;
if (GST_VIDEO_INFO_FORMAT (self->vinfo) == GST_VIDEO_FORMAT_UNKNOWN)
return;
for (i = 0; i < 4; i++) {
self->width[i] = GST_VIDEO_INFO_COMP_WIDTH (vinfo, i);
self->height[i] = GST_VIDEO_INFO_COMP_HEIGHT (vinfo, i);
self->offset[i] = GST_VIDEO_INFO_COMP_OFFSET (vinfo, i);
self->row_stride[i] = GST_VIDEO_INFO_COMP_STRIDE (vinfo, i);
self->pixel_stride[i] = GST_VIDEO_INFO_COMP_PSTRIDE (vinfo, i);
}
switch (GST_VIDEO_INFO_FORMAT (self->vinfo)) {
case GST_VIDEO_FORMAT_YUY2:
self->deinterlace_frame = klass->deinterlace_frame_yuy2;
break;
case GST_VIDEO_FORMAT_YVYU:
self->deinterlace_frame = klass->deinterlace_frame_yvyu;
break;
case GST_VIDEO_FORMAT_UYVY:
self->deinterlace_frame = klass->deinterlace_frame_uyvy;
break;
case GST_VIDEO_FORMAT_I420:
self->deinterlace_frame = klass->deinterlace_frame_i420;
break;
case GST_VIDEO_FORMAT_YV12:
self->deinterlace_frame = klass->deinterlace_frame_yv12;
break;
case GST_VIDEO_FORMAT_Y444:
self->deinterlace_frame = klass->deinterlace_frame_y444;
break;
case GST_VIDEO_FORMAT_Y42B:
self->deinterlace_frame = klass->deinterlace_frame_y42b;
break;
case GST_VIDEO_FORMAT_Y41B:
self->deinterlace_frame = klass->deinterlace_frame_y41b;
break;
case GST_VIDEO_FORMAT_AYUV:
self->deinterlace_frame = klass->deinterlace_frame_ayuv;
break;
case GST_VIDEO_FORMAT_NV12:
self->deinterlace_frame = klass->deinterlace_frame_nv12;
break;
case GST_VIDEO_FORMAT_NV21:
self->deinterlace_frame = klass->deinterlace_frame_nv21;
break;
case GST_VIDEO_FORMAT_ARGB:
case GST_VIDEO_FORMAT_xRGB:
self->deinterlace_frame = klass->deinterlace_frame_argb;
break;
case GST_VIDEO_FORMAT_ABGR:
case GST_VIDEO_FORMAT_xBGR:
self->deinterlace_frame = klass->deinterlace_frame_abgr;
break;
case GST_VIDEO_FORMAT_RGBA:
case GST_VIDEO_FORMAT_RGBx:
self->deinterlace_frame = klass->deinterlace_frame_rgba;
break;
case GST_VIDEO_FORMAT_BGRA:
case GST_VIDEO_FORMAT_BGRx:
self->deinterlace_frame = klass->deinterlace_frame_bgra;
break;
case GST_VIDEO_FORMAT_RGB:
self->deinterlace_frame = klass->deinterlace_frame_rgb;
break;
case GST_VIDEO_FORMAT_BGR:
self->deinterlace_frame = klass->deinterlace_frame_bgr;
break;
default:
self->deinterlace_frame = NULL;
break;
}
}