gboolean gst_imx_vpu_framebuffer_array_set_framebuffer_in_gstbuffer(GstImxVpuFramebufferArray *framebuffer_array, GstBuffer *buffer, ImxVpuFramebuffer *framebuffer)
{
GstVideoMeta *video_meta;
GstImxVpuFramebufferMeta *vpu_meta;
GstImxPhysMemMeta *phys_mem_meta;
GstImxPhysMemory *memory;
video_meta = gst_buffer_get_video_meta(buffer);
if (video_meta == NULL)
{
GST_ERROR("buffer with pointer %p has no video metadata", (gpointer)buffer);
return FALSE;
}
vpu_meta = GST_IMX_VPU_FRAMEBUFFER_META_GET(buffer);
if (vpu_meta == NULL)
{
GST_ERROR("buffer with pointer %p has no VPU metadata", (gpointer)buffer);
return FALSE;
}
phys_mem_meta = GST_IMX_PHYS_MEM_META_GET(buffer);
if (phys_mem_meta == NULL)
{
GST_ERROR("buffer with pointer %p has no phys mem metadata", (gpointer)buffer);
return FALSE;
}
{
gsize x_padding = 0, y_padding = 0;
if (framebuffer_array->framebuffer_sizes.aligned_frame_width > video_meta->width)
x_padding = framebuffer_array->framebuffer_sizes.aligned_frame_width - video_meta->width;
if (framebuffer_array->framebuffer_sizes.aligned_frame_height > video_meta->height)
y_padding = framebuffer_array->framebuffer_sizes.aligned_frame_height - video_meta->height;
vpu_meta->framebuffer = framebuffer;
phys_mem_meta->phys_addr = (gst_imx_phys_addr_t)imx_vpu_dma_buffer_get_physical_address(framebuffer->dma_buffer);
phys_mem_meta->x_padding = x_padding;
phys_mem_meta->y_padding = y_padding;
GST_LOG("setting phys mem meta for buffer with pointer %p: phys addr %" GST_IMX_PHYS_ADDR_FORMAT " x/y padding %" G_GSIZE_FORMAT "/%" G_GSIZE_FORMAT, (gpointer)buffer, phys_mem_meta->phys_addr, phys_mem_meta->x_padding, phys_mem_meta->y_padding);
}
memory = gst_imx_vpu_framebuffer_array_get_gst_phys_memory(framebuffer);
/* remove any existing memory blocks */
gst_buffer_remove_all_memory(buffer);
/* and append the new memory block
* the memory is ref'd to prevent deallocation when it is later removed
* (either because this function is called again, or because the buffer
* is deallocated); refcount is 1 already at this point, since the memory
* is ref'd inside the framebuffer array, and unref'd when the array is
* shut down */
gst_buffer_append_memory(buffer, gst_memory_ref((GstMemory *)memory));
return TRUE;
}
static void
gst_droid_buffer_pool_reset_buffer (GstBufferPool * pool, GstBuffer * buffer)
{
GstDroidBufferPool *dpool = GST_DROID_BUFFER_POOL (pool);
gst_buffer_remove_all_memory (buffer);
GST_BUFFER_FLAG_UNSET (buffer, GST_BUFFER_FLAG_TAG_MEMORY);
g_mutex_lock (&dpool->lock);
++dpool->num_buffers;
GST_DEBUG_OBJECT (dpool, "num buffers: %d", dpool->num_buffers);
g_cond_signal (&dpool->cond);
g_mutex_unlock (&dpool->lock);
return GST_BUFFER_POOL_CLASS (parent_class)->reset_buffer (pool, buffer);
}
static GstFlowReturn gst_imx_v4l2_buffer_pool_acquire_buffer(GstBufferPool *bpool, GstBuffer **buffer, G_GNUC_UNUSED GstBufferPoolAcquireParams *params)
{
GstImxV4l2BufferPool *pool = GST_IMX_V4L2_BUFFER_POOL(bpool);
struct v4l2_buffer vbuffer;
GstBuffer *buf;
GstImxV4l2Meta *meta;
if (GST_BUFFER_POOL_IS_FLUSHING(bpool))
return GST_FLOW_FLUSHING;
memset(&vbuffer, 0, sizeof(vbuffer));
vbuffer.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
vbuffer.memory = V4L2_MEMORY_MMAP;
if (ioctl(GST_IMX_FD_OBJECT_GET_FD(pool->fd_obj_v4l), VIDIOC_DQBUF, &vbuffer) < 0)
{
GST_ERROR_OBJECT(pool, "VIDIOC_DQBUF failed: %s", g_strerror(errno));
return GST_FLOW_ERROR;
}
buf = pool->buffers[vbuffer.index];
GST_DEBUG_OBJECT(pool, "dqbuf %u %p", vbuffer.index, (gpointer)buf);
pool->buffers[vbuffer.index] = NULL;
g_assert(buf);
meta = GST_IMX_V4L2_META_GET(buf);
g_assert(meta);
gst_buffer_remove_all_memory(buf);
gst_buffer_append_memory(buf,
gst_memory_new_wrapped(0,
meta->mem, meta->vbuffer.length, 0,
vbuffer.bytesused, NULL, NULL));
GST_BUFFER_TIMESTAMP(buf) = GST_TIMEVAL_TO_TIME(vbuffer.timestamp);
*buffer = buf;
return GST_FLOW_OK;
}
