Initial version
Change-Id: I7efe9a589cd24edf86e8d086b40c27cbbf8b4017
diff --git a/encoder/irc_bit_allocation.h b/encoder/irc_bit_allocation.h
new file mode 100755
index 0000000..19ba0df
--- /dev/null
+++ b/encoder/irc_bit_allocation.h
@@ -0,0 +1,99 @@
+/******************************************************************************
+ *
+ * Copyright (C) 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ *****************************************************************************
+ * Originally developed and contributed by Ittiam Systems Pvt. Ltd, Bangalore
+*/
+
+#ifndef _BIT_ALLOCATION_H_
+#define _BIT_ALLOCATION_H_
+
+typedef struct bit_allocation_t *bit_allocation_handle;
+
+WORD32 irc_ba_num_fill_use_free_memtab(bit_allocation_handle *pps_bit_allocation,
+ itt_memtab_t *ps_memtab,
+ ITT_FUNC_TYPE_E e_func_type);
+
+void irc_ba_init_bit_allocation(bit_allocation_handle ps_bit_allocation,
+ pic_handling_handle ps_pic_handling,
+ WORD32 i4_num_intra_frm_interval,
+ WORD32 i4_bit_rate,
+ WORD32 i4_frm_rate,
+ WORD32 *u4_peak_bit_rate,
+ WORD32 i4_min_bitrate);
+
+/* Estimates the number of texture bits required by the current frame */
+WORD32 irc_ba_get_cur_frm_est_texture_bits(bit_allocation_handle ps_bit_allocation,
+ rc_rd_model_handle *pps_rd_model,
+ est_sad_handle ps_est_sad,
+ pic_handling_handle ps_pic_handling,
+ picture_type_e e_pic_type);
+
+/* Estimate the number of header bits required by the current frame */
+WORD32 irc_ba_get_cur_frm_est_header_bits(bit_allocation_handle ps_bit_allocation,
+ picture_type_e e_pic_type);
+
+/* Get the remaining bits allocated in the period */
+WORD32 irc_ba_get_rem_bits_in_period(bit_allocation_handle ps_bit_allocation,
+ pic_handling_handle ps_pic_handling);
+
+WORD32 irc_ba_get_frame_rate(bit_allocation_handle ps_bit_allocation);
+
+WORD32 irc_ba_get_bit_rate(bit_allocation_handle ps_bit_allocation);
+void irc_ba_get_peak_bit_rate(bit_allocation_handle ps_bit_allocation,
+ WORD32 *pi4_peak_bit_rate);
+
+/* Updates the bit allocation module with the actual encoded values */
+void irc_ba_update_cur_frm_consumed_bits(bit_allocation_handle ps_bit_allocation,
+ pic_handling_handle ps_pic_handling,
+ WORD32 i4_total_frame_bits,
+ WORD32 i4_model_updation_hdr_bits,
+ picture_type_e e_pic_type,
+ UWORD8 u1_is_scd,
+ WORD32 i4_last_frm_in_gop);
+
+void irc_ba_check_and_update_bit_allocation(bit_allocation_handle ps_bit_allocation,
+ pic_handling_handle ps_pic_handling,
+ WORD32 i4_cur_buf_size,
+ WORD32 i4_max_buf_size,
+ WORD32 i4_max_bits_inflow_per_frm,
+ WORD32 i4_tot_frame_bits);
+
+/* Based on the change in frame/bit rate update the remaining bits in period */
+void irc_ba_change_remaining_bits_in_period(bit_allocation_handle ps_bit_allocation,
+ pic_handling_handle ps_pic_handling,
+ WORD32 i4_bit_rate,
+ WORD32 i4_frame_rate,
+ WORD32 *i4_peak_bit_rate);
+
+/* Change the gop size in the middle of a current gop */
+void change_gop_size(bit_allocation_handle ps_bit_allocation,
+ WORD32 i4_intra_frm_interval,
+ WORD32 i4_inter_frm_interval,
+ WORD32 i4_num_intra_frm_interval);
+
+void update_rem_frms_in_period(bit_allocation_handle ps_bit_allocation,
+ picture_type_e e_pic_type,
+ UWORD8 u1_is_first_frm,
+ WORD32 i4_intra_frm_interval,
+ WORD32 i4_num_intra_frm_interval);
+
+void irc_ba_change_rem_bits_in_prd_at_force_I_frame(bit_allocation_handle ps_bit_allocation,
+ pic_handling_handle ps_pic_handling);
+
+void irc_ba_change_ba_peak_bit_rate(bit_allocation_handle ps_bit_allocation,
+ WORD32 *ai4_peak_bit_rate);
+#endif