[Libva] [ROI 2/2] Encoding: Add ROI example
Pengfei Qu
Pengfei.Qu at intel.com
Tue Jun 28 11:03:58 UTC 2016
From: Zhao Yakui <yakui.zhao at intel.com>
Signed-off-by: Zhao Yakui <yakui.zhao at intel.com>
Signed-off-by: pjl <ceciliapeng at intel.com>
Signed-off-by: ceciliapeng <cecilia.peng at intel.com>
Signed-off-by: Pengfei Qu <Pengfei.Qu at intel.com>
---
test/encode/avcenc.c | 75 +++++++++++++++++++++++++++++++++++++++++++++++++---
1 file changed, 71 insertions(+), 4 deletions(-)
diff --git a/test/encode/avcenc.c b/test/encode/avcenc.c
index 74729fb..9cfc5b4 100644
--- a/test/encode/avcenc.c
+++ b/test/encode/avcenc.c
@@ -154,6 +154,7 @@ static struct {
VABufferID packed_sei_header_param_buf_id; /* the SEI buffer */
VABufferID packed_sei_buf_id;
VABufferID misc_parameter_hrd_buf_id;
+ VABufferID misc_parameter_roi_buf_id;
int num_slices;
int codedbuf_i_size;
@@ -185,7 +186,7 @@ static void create_encode_pipe()
{
VAEntrypoint entrypoints[5];
int num_entrypoints,slice_entrypoint;
- VAConfigAttrib attrib[2];
+ VAConfigAttrib attrib[3];
int major_ver, minor_ver;
VAStatus va_status;
@@ -209,8 +210,11 @@ static void create_encode_pipe()
/* find out the format for the render target, and rate control mode */
attrib[0].type = VAConfigAttribRTFormat;
attrib[1].type = VAConfigAttribRateControl;
+
+ /* This is to query whether the ROI is supported */
+ attrib[2].type = VAConfigAttribEncROI;
vaGetConfigAttributes(va_dpy, avcenc_context.profile, select_entrypoint,
- &attrib[0], 2);
+ &attrib[0], 3);
if ((attrib[0].value & VA_RT_FORMAT_YUV420) == 0) {
/* not find desired YUV420 RT format */
@@ -225,9 +229,15 @@ static void create_encode_pipe()
attrib[0].value = VA_RT_FORMAT_YUV420; /* set to desired RT format */
attrib[1].value = avcenc_context.rate_control_method; /* set to desired RC mode */
+ /* This is to create one context with ROI supported
+ * Only when it is supported, it is possible to pass ROI buffer on-the fly
+ * so that it can use the given ROI config for one frame.
+ * If ROI buffer is not passed, it will continue the original encoding mode.
+ */
+ attrib[2].value = 0x0101;
va_status = vaCreateConfig(va_dpy, avcenc_context.profile, select_entrypoint,
- &attrib[0], 2,&avcenc_context.config_id);
+ &attrib[0], 3,&avcenc_context.config_id);
CHECK_VASTATUS(va_status, "vaCreateConfig");
/* Create a context for this decode pipe */
@@ -814,16 +824,68 @@ static int begin_picture(FILE *yuv_fp, int frame_num, int display_num, int slice
vaUnmapBuffer(va_dpy, avcenc_context.misc_parameter_hrd_buf_id);
+ /* ROI parameter */
+ VAEncMiscParameterBufferROI *misc_roi_param;
+
+ /* restriction: current the driver only supports only one ROI num based on returned config_attribute */
+ int roi_num = 1;
+ vaCreateBuffer(va_dpy,
+ avcenc_context.context_id,
+ VAEncMiscParameterBufferType,
+ sizeof(VAEncMiscParameterBuffer) + sizeof(VAEncMiscParameterBufferROI) + roi_num * sizeof(VAEncROI),
+ 1,
+ NULL,
+ &avcenc_context.misc_parameter_roi_buf_id);
+ vaMapBuffer(va_dpy,
+ avcenc_context.misc_parameter_roi_buf_id,
+ (void **)&misc_param);
+ misc_param->type = VAEncMiscParameterTypeROI;
+ misc_roi_param = (VAEncMiscParameterBufferROI *)misc_param->data;
+
+ {
+ /*
+ * Max/Min delta_qp is only used in CBR mode. It is ingored under CQP mode.
+ * max_delta_qp means the allowed upper bound of qp delta. (qp + X)
+ * min_delta_qp means the allowed lower bound of qp delta. (qp -X)
+ * So it will be better that it is positive. Otherwise the driver will
+ * use the default bound setting.
+ */
+ misc_roi_param->max_delta_qp = 3;
+ misc_roi_param->min_delta_qp = 3;
+ /* one example of ROI region conf.
+ * please change it on the fly.
+ */
+ VAEncROI *region_roi =(VAEncROI *)((char *)misc_param + sizeof(VAEncMiscParameterBuffer) +
+ sizeof(VAEncMiscParameterBufferROI));
+
+ /*
+ * Under CQP mode roi_value specifies the qp_delta that is added to frame qp
+ * Under CBR mode roi_value specifies the important level (positive means that
+ * it is important. negative means that it is less important).
+ */
+ region_roi->roi_value = 4;
+ region_roi->roi_rectangle.x = 0;
+ region_roi->roi_rectangle.y = 0;
+ region_roi->roi_rectangle.width = 120;
+ region_roi->roi_rectangle.height = 120;
+
+ misc_roi_param->roi = region_roi;
+ misc_roi_param->num_roi = 1;
+ }
+
+ vaUnmapBuffer(va_dpy, avcenc_context.misc_parameter_roi_buf_id);
return 0;
}
int avcenc_render_picture()
{
VAStatus va_status;
- VABufferID va_buffers[10];
+ VABufferID va_buffers[20];
unsigned int num_va_buffers = 0;
int i;
+ memset(&va_buffers, 0xff, sizeof(va_buffers));
+
va_buffers[num_va_buffers++] = avcenc_context.seq_param_buf_id;
va_buffers[num_va_buffers++] = avcenc_context.pic_param_buf_id;
@@ -848,6 +910,9 @@ int avcenc_render_picture()
if (avcenc_context.misc_parameter_hrd_buf_id != VA_INVALID_ID)
va_buffers[num_va_buffers++] = avcenc_context.misc_parameter_hrd_buf_id;
+ if (avcenc_context.misc_parameter_roi_buf_id != VA_INVALID_ID)
+ va_buffers[num_va_buffers++] = avcenc_context.misc_parameter_roi_buf_id;
+
va_status = vaBeginPicture(va_dpy,
avcenc_context.context_id,
surface_ids[avcenc_context.current_input_surface]);
@@ -904,6 +969,7 @@ static void end_picture()
avcenc_destroy_buffers(&avcenc_context.slice_param_buf_id[0], avcenc_context.num_slices);
avcenc_destroy_buffers(&avcenc_context.codedbuf_buf_id, 1);
avcenc_destroy_buffers(&avcenc_context.misc_parameter_hrd_buf_id, 1);
+ avcenc_destroy_buffers(&avcenc_context.misc_parameter_roi_buf_id, 1);
memset(avcenc_context.slice_param, 0, sizeof(avcenc_context.slice_param));
avcenc_context.num_slices = 0;
@@ -1831,6 +1897,7 @@ static void avcenc_context_init(int width, int height)
avcenc_context.upload_thread_value = -1;
avcenc_context.packed_sei_header_param_buf_id = VA_INVALID_ID;
avcenc_context.packed_sei_buf_id = VA_INVALID_ID;
+ avcenc_context.misc_parameter_roi_buf_id = VA_INVALID_ID;
if (qp_value == -1)
avcenc_context.rate_control_method = VA_RC_CBR;
--
2.7.4
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