Mercurial > foo_out_sdl

comparison foosdk/sdk/foobar2000/helpers/dynamic_bitrate_helper.cpp @ 1:20d02a178406 default tip

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
*: check in everything else yay
author Paper <paper@tflc.us>
date Mon, 05 Jan 2026 02:15:46 -0500
parents
children
comparison
equal deleted inserted replaced
0:e9bb126753e7 1:20d02a178406
1 #include "StdAfx.h"
2
3 #include "dynamic_bitrate_helper.h"
4 #include <SDK/config_object.h>
5
6 static unsigned g_query_settings()
7 {
8 t_int32 temp;
9 try {
10 config_object::g_get_data_int32(standard_config_objects::int32_dynamic_bitrate_display_rate,temp);
11 } catch(std::exception const &) {return 9;}
12 if (temp < 0) return 0;
13 return (unsigned) temp;
14 }
15
16 dynamic_bitrate_helper::dynamic_bitrate_helper()
17 {
18 reset();
19 }
20
21 void dynamic_bitrate_helper::init()
22 {
23 if (!m_inited)
24 {
25 m_inited = true;
26 unsigned temp = g_query_settings();
27 if (temp > 0) {m_enabled = true; m_update_interval = 1.0 / (double) temp; }
28 else {m_enabled = false; m_update_interval = 0; }
29 m_last_duration = 0;
30 m_update_bits = 0;
31 m_update_time = 0;
32
33 }
34 }
35
36 void dynamic_bitrate_helper::on_frame(double p_duration,t_size p_bits)
37 {
38 init();
39 m_last_duration = p_duration;
40 m_update_time += p_duration;
41 m_update_bits += p_bits;
42 }
43
44 bool dynamic_bitrate_helper::on_update(file_info & p_out, double & p_timestamp_delta)
45 {
46 init();
47
48 bool ret = false;
49 if (m_enabled)
50 {
51 if (m_update_time > m_update_interval)
52 {
53 int val = (int) ( ((double)m_update_bits / m_update_time + 500.0) / 1000.0 );
54 if (val != p_out.info_get_bitrate_vbr())
55 {
56 p_timestamp_delta = - (m_update_time - m_last_duration); //relative to last frame beginning;
57 p_out.info_set_bitrate_vbr(val);
58 ret = true;
59 }
60 m_update_bits = 0;
61 m_update_time = 0;
62 }
63 }
64 else
65 {
66 m_update_bits = 0;
67 m_update_time = 0;
68 }
69
70 return ret;
71
72 }
73
74 void dynamic_bitrate_helper::reset()
75 {
76 m_inited = false;
77 }