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Encoder: Fixed an issue in handling FPS greater than 60

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FPS > 60 was resulting in an integer overflow, so using float now.

Change-Id: I4626ba6a43167c00c42dd6440df37bd1eb1f151a
This commit is contained in:
Harish Mahendrakar 2015-08-03 12:13:51 +05:30
parent c858165962
commit 2eaba5ebd1
1 changed files with 10 additions and 2 deletions
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12
encoder/ih264e_time_stamp.c
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@ -84,6 +84,7 @@
#include "ih264e_structs.h"
#include "ih264e_rc_mem_interface.h"
#include "ih264e_time_stamp.h"
#include "irc_common.h"
#include "irc_rate_control_api.h"
@ -278,8 +279,15 @@ void ih264e_init_frame_time(frame_time_t *ps_frame_time,
* frame times increase */
WORD32 i4_gcd = gcd(u4_src_frm_rate, u4_tgt_frm_rate);
ps_frame_time->common_time_base = (u4_src_frm_rate * u4_tgt_frm_rate)
/ i4_gcd;
/* Avoiding overflow by doing calculations in float */
number_t s_src_frm_rate, s_tgt_frm_rate, s_gcd, s_common_time_base, s_numerator;
SET_VAR_Q(s_src_frm_rate, u4_src_frm_rate, 0);
SET_VAR_Q(s_tgt_frm_rate, u4_tgt_frm_rate, 0);
SET_VAR_Q(s_gcd, i4_gcd, 0);
mult32_var_q(s_src_frm_rate, s_tgt_frm_rate, &s_numerator);
div32_var_q(s_numerator, s_gcd, &s_common_time_base);
number_t_to_word32(s_common_time_base, &(ps_frame_time->common_time_base));
/* The source and target increment per vop is initialized */
ps_frame_time->u4_src_frm_time_incr = ps_frame_time->common_time_base