return BRC_UNDERFLOW;
}
- mfc_context->hrd.current_buffer_fullness += mfc_context->brc.bits_per_frame[0];
+ mfc_context->hrd.current_buffer_fullness += mfc_context->brc.bits_per_frame[encoder_context->layer.curr_frame_layer_id];
if (mfc_context->hrd.buffer_size > 0 && mfc_context->hrd.current_buffer_fullness > mfc_context->hrd.buffer_size) {
if (mfc_context->brc.mode == VA_RC_VBR)
mfc_context->hrd.current_buffer_fullness = mfc_context->hrd.buffer_size;
gen6_brc_status sts = BRC_NO_HRD_VIOLATION;
VAEncSliceParameterBufferH264 *pSliceParameter = (VAEncSliceParameterBufferH264 *)encode_state->slice_params_ext[0]->buffer;
int slicetype = intel_avc_enc_slice_type_fixup(pSliceParameter->slice_type);
- int qpi = mfc_context->brc.qp_prime_y[0][SLICE_TYPE_I];
- int qpp = mfc_context->brc.qp_prime_y[0][SLICE_TYPE_P];
- int qpb = mfc_context->brc.qp_prime_y[0][SLICE_TYPE_B];
+ int curr_frame_layer_id, next_frame_layer_id;
+ int qpi, qpp, qpb;
int qp; // quantizer of previously encoded slice of current type
int qpn; // predicted quantizer for next frame of current type in integer format
double qpf; // predicted quantizer for next frame of current type in float format
* y - how far we are from target HRD buffer fullness
*/
double x, y;
- double frame_size_alpha;
+ double frame_size_alpha, factor;
- qp = mfc_context->brc.qp_prime_y[0][slicetype];
+ if (encoder_context->layer.num_layers < 2 || encoder_context->layer.size_frame_layer_ids == 0) {
+ curr_frame_layer_id = 0;
+ next_frame_layer_id = 0;
+ } else {
+ curr_frame_layer_id = encoder_context->layer.curr_frame_layer_id;
+ next_frame_layer_id = encoder_context->layer.frame_layer_ids[encoder_context->num_frames_in_sequence % encoder_context->layer.size_frame_layer_ids];
+ }
+
+ /* checking wthether HRD compliance first */
+ sts = intel_mfc_update_hrd(encode_state, encoder_context, frame_bits);
+
+ if (sts == BRC_NO_HRD_VIOLATION) { // no HRD violation
+ /* nothing */
+ } else {
+ next_frame_layer_id = curr_frame_layer_id;
+ }
+
+ if (encoder_context->layer.num_layers < 2 || encoder_context->layer.size_frame_layer_ids == 0)
+ factor = 1.0;
+ else
+ factor = (double)encoder_context->brc.framerate_per_100s[next_frame_layer_id] / encoder_context->brc.framerate_per_100s[encoder_context->layer.num_layers - 1];
+
+ qpi = mfc_context->brc.qp_prime_y[next_frame_layer_id][SLICE_TYPE_I];
+ qpp = mfc_context->brc.qp_prime_y[next_frame_layer_id][SLICE_TYPE_P];
+ qpb = mfc_context->brc.qp_prime_y[next_frame_layer_id][SLICE_TYPE_B];
- target_frame_size = mfc_context->brc.target_frame_size[0][slicetype];
+ qp = mfc_context->brc.qp_prime_y[next_frame_layer_id][slicetype];
+
+ target_frame_size = mfc_context->brc.target_frame_size[next_frame_layer_id][slicetype];
if (mfc_context->hrd.buffer_capacity < 5)
frame_size_alpha = 0;
else
- frame_size_alpha = (double)mfc_context->brc.gop_nums[slicetype];
+ frame_size_alpha = (double)mfc_context->brc.gop_nums[slicetype] * factor;
if (frame_size_alpha > 30) frame_size_alpha = 30;
frame_size_next = target_frame_size + (double)(target_frame_size - frame_bits) /
(double)(frame_size_alpha + 1.);
/* making sure that with QP predictions we did do not leave QPs range */
BRC_CLIP(qpn, 1, 51);
- /* checking wthether HRD compliance is still met */
- sts = intel_mfc_update_hrd(encode_state, encoder_context, frame_bits);
-
/* calculating QP delta as some function*/
x = mfc_context->hrd.target_buffer_fullness - mfc_context->hrd.current_buffer_fullness;
if (x > 0) {
/* correcting QPs of slices of other types */
if (slicetype == SLICE_TYPE_P) {
if (abs(qpn + BRC_P_B_QP_DIFF - qpb) > 2)
- mfc_context->brc.qp_prime_y[0][SLICE_TYPE_B] += (qpn + BRC_P_B_QP_DIFF - qpb) >> 1;
+ mfc_context->brc.qp_prime_y[next_frame_layer_id][SLICE_TYPE_B] += (qpn + BRC_P_B_QP_DIFF - qpb) >> 1;
if (abs(qpn - BRC_I_P_QP_DIFF - qpi) > 2)
- mfc_context->brc.qp_prime_y[0][SLICE_TYPE_I] += (qpn - BRC_I_P_QP_DIFF - qpi) >> 1;
+ mfc_context->brc.qp_prime_y[next_frame_layer_id][SLICE_TYPE_I] += (qpn - BRC_I_P_QP_DIFF - qpi) >> 1;
} else if (slicetype == SLICE_TYPE_I) {
if (abs(qpn + BRC_I_B_QP_DIFF - qpb) > 4)
- mfc_context->brc.qp_prime_y[0][SLICE_TYPE_B] += (qpn + BRC_I_B_QP_DIFF - qpb) >> 2;
+ mfc_context->brc.qp_prime_y[next_frame_layer_id][SLICE_TYPE_B] += (qpn + BRC_I_B_QP_DIFF - qpb) >> 2;
if (abs(qpn + BRC_I_P_QP_DIFF - qpp) > 2)
- mfc_context->brc.qp_prime_y[0][SLICE_TYPE_P] += (qpn + BRC_I_P_QP_DIFF - qpp) >> 2;
+ mfc_context->brc.qp_prime_y[next_frame_layer_id][SLICE_TYPE_P] += (qpn + BRC_I_P_QP_DIFF - qpp) >> 2;
} else { // SLICE_TYPE_B
if (abs(qpn - BRC_P_B_QP_DIFF - qpp) > 2)
- mfc_context->brc.qp_prime_y[0][SLICE_TYPE_P] += (qpn - BRC_P_B_QP_DIFF - qpp) >> 1;
+ mfc_context->brc.qp_prime_y[next_frame_layer_id][SLICE_TYPE_P] += (qpn - BRC_P_B_QP_DIFF - qpp) >> 1;
if (abs(qpn - BRC_I_B_QP_DIFF - qpi) > 4)
- mfc_context->brc.qp_prime_y[0][SLICE_TYPE_I] += (qpn - BRC_I_B_QP_DIFF - qpi) >> 2;
+ mfc_context->brc.qp_prime_y[next_frame_layer_id][SLICE_TYPE_I] += (qpn - BRC_I_B_QP_DIFF - qpi) >> 2;
}
- BRC_CLIP(mfc_context->brc.qp_prime_y[0][SLICE_TYPE_I], 1, 51);
- BRC_CLIP(mfc_context->brc.qp_prime_y[0][SLICE_TYPE_P], 1, 51);
- BRC_CLIP(mfc_context->brc.qp_prime_y[0][SLICE_TYPE_B], 1, 51);
+ BRC_CLIP(mfc_context->brc.qp_prime_y[next_frame_layer_id][SLICE_TYPE_I], 1, 51);
+ BRC_CLIP(mfc_context->brc.qp_prime_y[next_frame_layer_id][SLICE_TYPE_P], 1, 51);
+ BRC_CLIP(mfc_context->brc.qp_prime_y[next_frame_layer_id][SLICE_TYPE_B], 1, 51);
} else if (sts == BRC_UNDERFLOW) { // underflow
if (qpn <= qp) qpn = qp + 1;
if (qpn > 51) {
}
}
- mfc_context->brc.qp_prime_y[0][slicetype] = qpn;
+ mfc_context->brc.qp_prime_y[next_frame_layer_id][slicetype] = qpn;
return sts;
}
{
struct gen6_mfc_context *mfc_context = encoder_context->mfc_context;
unsigned int rate_control_mode = encoder_context->rate_control_mode;
- int target_bit_rate = encoder_context->brc.bits_per_second[0];
+ int target_bit_rate = encoder_context->brc.bits_per_second[encoder_context->layer.num_layers - 1];
// current we only support CBR mode.
if (rate_control_mode == VA_RC_CBR) {
if (encoder_context->rate_control_mode == VA_RC_CQP)
qp = pic_param->pic_init_qp + slice_param->slice_qp_delta;
else
- qp = mfc_context->brc.qp_prime_y[0][slice_type];
+ qp = mfc_context->brc.qp_prime_y[encoder_context->layer.curr_frame_layer_id][slice_type];
if (vme_state_message == NULL)
return;
if (encoder_context->rate_control_mode == VA_RC_CQP)
qp = q_matrix->quantization_index[0];
else
- qp = mfc_context->brc.qp_prime_y[0][slice_type];
+ qp = mfc_context->brc.qp_prime_y[encoder_context->layer.curr_frame_layer_id][slice_type];
lambda = intel_lambda_qp(qp * QP_MAX / VP8_QP_MAX);
if (encoder_context->rate_control_mode == VA_RC_CQP)
qp = pic_param->pic_init_qp + slice_param->slice_qp_delta;
else
- qp = mfc_context->brc.qp_prime_y[0][slice_type];
+ qp = mfc_context->brc.qp_prime_y[encoder_context->layer.curr_frame_layer_id][slice_type];
#define USE_SCOREBOARD (1 << 21)
int qp;
int slice_type = intel_avc_enc_slice_type_fixup(slice_param->slice_type);
- qp = mfc_context->brc.qp_prime_y[0][slice_type];
+ qp = mfc_context->brc.qp_prime_y[encoder_context->layer.curr_frame_layer_id][slice_type];
intel_h264_enc_roi_cbr(ctx, qp, pParamROI,encode_state, encoder_context);
} else if (encoder_context->rate_control_mode == VA_RC_CQP){