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v4l2: Introduce DMABUF_IMPORT IO mode

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This commit is contained in:
Nicolas Dufresne 2014-04-14 12:19:39 -04:00
parent 1ab90ababa
commit eee61f39e5
3 changed files with 25 additions and 7 deletions
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15
sys/v4l2/gstv4l2bufferpool.c
View file

@ -115,6 +115,7 @@ gst_v4l2_buffer_pool_alloc_buffer (GstBufferPool * bpool, GstBuffer ** buffer,
pool->allocator);
break;
case GST_V4L2_IO_USERPTR:
case GST_V4L2_IO_DMABUF_IMPORT:
default:
newbuf = NULL;
g_assert_not_reached ();
@ -265,12 +266,15 @@ gst_v4l2_buffer_pool_set_config (GstBufferPool * bpool, GstStructure * config)
GST_V4L2_ALLOCATOR_CAN_ALLOCATE (pool->vallocator, USERPTR);
break;
case GST_V4L2_IO_RW:
default:
pool->allocator = g_object_ref (allocator);
pool->params = params;
/* No need to change the configuration */
goto done;
break;
case GST_V4L2_IO_DMABUF_IMPORT:
default:
g_assert_not_reached ();
break;
}
if (min_buffers < GST_V4L2_MIN_BUFFERS) {
@ -336,6 +340,7 @@ start_streaming (GstV4l2BufferPool * pool)
case GST_V4L2_IO_MMAP:
case GST_V4L2_IO_USERPTR:
case GST_V4L2_IO_DMABUF:
case GST_V4L2_IO_DMABUF_IMPORT:
GST_DEBUG_OBJECT (pool, "STREAMON");
if (v4l2_ioctl (pool->video_fd, VIDIOC_STREAMON, &obj->type) < 0)
goto start_failed;
@ -438,6 +443,7 @@ gst_v4l2_buffer_pool_start (GstBufferPool * bpool)
break;
}
case GST_V4L2_IO_USERPTR:
case GST_V4L2_IO_DMABUF_IMPORT:
default:
num_buffers = 0;
copy_threshold = 0;
@ -519,6 +525,7 @@ stop_streaming (GstV4l2BufferPool * pool)
case GST_V4L2_IO_MMAP:
case GST_V4L2_IO_USERPTR:
case GST_V4L2_IO_DMABUF:
case GST_V4L2_IO_DMABUF_IMPORT:
GST_DEBUG_OBJECT (pool, "STREAMOFF");
if (v4l2_ioctl (pool->video_fd, VIDIOC_STREAMOFF, &obj->type) < 0)
goto stop_failed;
@ -836,6 +843,7 @@ gst_v4l2_buffer_pool_acquire_buffer (GstBufferPool * bpool, GstBuffer ** buffer,
break;
case GST_V4L2_IO_USERPTR:
case GST_V4L2_IO_DMABUF_IMPORT:
default:
ret = GST_FLOW_ERROR;
g_assert_not_reached ();
@ -861,6 +869,7 @@ gst_v4l2_buffer_pool_acquire_buffer (GstBufferPool * bpool, GstBuffer ** buffer,
break;
case GST_V4L2_IO_USERPTR:
case GST_V4L2_IO_DMABUF_IMPORT:
default:
ret = GST_FLOW_ERROR;
g_assert_not_reached ();
@ -919,6 +928,7 @@ gst_v4l2_buffer_pool_release_buffer (GstBufferPool * bpool, GstBuffer * buffer)
break;
}
case GST_V4L2_IO_USERPTR:
case GST_V4L2_IO_DMABUF_IMPORT:
default:
g_assert_not_reached ();
break;
@ -970,6 +980,7 @@ gst_v4l2_buffer_pool_release_buffer (GstBufferPool * bpool, GstBuffer * buffer)
}
case GST_V4L2_IO_USERPTR:
case GST_V4L2_IO_DMABUF_IMPORT:
default:
g_assert_not_reached ();
break;
@ -1210,6 +1221,7 @@ gst_v4l2_buffer_pool_process (GstV4l2BufferPool * pool, GstBuffer * buf)
}
case GST_V4L2_IO_USERPTR:
case GST_V4L2_IO_DMABUF_IMPORT:
default:
g_assert_not_reached ();
break;
@ -1281,6 +1293,7 @@ gst_v4l2_buffer_pool_process (GstV4l2BufferPool * pool, GstBuffer * buf)
}
case GST_V4L2_IO_USERPTR:
case GST_V4L2_IO_DMABUF_IMPORT:
default:
g_assert_not_reached ();
break;

6
sys/v4l2/gstv4l2object.c
View file

@ -238,6 +238,8 @@ gst_v4l2_io_mode_get_type (void)
{GST_V4L2_IO_MMAP, "GST_V4L2_IO_MMAP", "mmap"},
{GST_V4L2_IO_USERPTR, "GST_V4L2_IO_USERPTR", "userptr"},
{GST_V4L2_IO_DMABUF, "GST_V4L2_IO_DMABUF", "dmabuf"},
{GST_V4L2_IO_DMABUF_IMPORT, "GST_V4L2_IO_DMABUF_IMPORT",
"dmabuf-import"},
{0, NULL, NULL}
};
@ -3123,8 +3125,10 @@ gst_v4l2_object_decide_allocation (GstV4l2Object * obj, GstQuery * query)
}
break;
case GST_V4L2_IO_MMAP:
case GST_V4L2_IO_USERPTR:
case GST_V4L2_IO_DMABUF:
/* FIXME in these case we actually prefer/need a downstream pool */
case GST_V4L2_IO_USERPTR:
case GST_V4L2_IO_DMABUF_IMPORT:
/* in streaming mode, prefer our own pool */
/* Check if we can use it ... */
if (can_use_own_pool) {

3
sys/v4l2/gstv4l2object.h
View file

@ -55,7 +55,8 @@ typedef enum {
GST_V4L2_IO_RW = 1,
GST_V4L2_IO_MMAP = 2,
GST_V4L2_IO_USERPTR = 3,
GST_V4L2_IO_DMABUF = 4
GST_V4L2_IO_DMABUF = 4,
GST_V4L2_IO_DMABUF_IMPORT = 5
} GstV4l2IOMode;
typedef gboolean (*GstV4l2GetInOutFunction) (GstV4l2Object * v4l2object, gint * input);