diff options
author | Jun Zhao <mypopydev@gmail.com> | 2018-06-04 16:32:37 +0300 |
---|---|---|
committer | Jun Zhao <jun.zhao@intel.com> | 2018-06-10 03:46:09 +0300 |
commit | 4030d3d3f4951c3df63e8231df90621eb75bb832 (patch) | |
tree | c96bc7b9391e0cc8c731b6aa34b3f85319d49b7c /libavcodec/dolby_e.c | |
parent | 5686c4489a017209367c03fbc40011db7134581a (diff) |
lavc/dolby_e: fix make checkheaders warning
move the the function init_tables() definitions from header file
to .c file to fix make checkheaders warning.
Signed-off-by: Jun Zhao <mypopydev@gmail.com>
Diffstat (limited to 'libavcodec/dolby_e.c')
-rw-r--r-- | libavcodec/dolby_e.c | 87 |
1 files changed, 87 insertions, 0 deletions
diff --git a/libavcodec/dolby_e.c b/libavcodec/dolby_e.c index 91a00ce878..429612ec08 100644 --- a/libavcodec/dolby_e.c +++ b/libavcodec/dolby_e.c @@ -681,6 +681,93 @@ static av_cold int dolby_e_close(AVCodecContext *avctx) return 0; } + +static av_cold void init_tables(void) +{ + int i, j; + + for (i = 1; i < 17; i++) + mantissa_tab1[i][0] = 1.0f / (1 << i - 1); + + for (i = 2; i < 16; i++) { + mantissa_tab1[i][1] = 1.0f / ((1 << i) - 1); + mantissa_tab1[i][2] = 0.5f / ((1 << i) - 1); + mantissa_tab1[i][3] = 0.25f / ((1 << i) - 1); + } + + mantissa_tab1[i][1] = 0.5f / (1 << 15); + mantissa_tab1[i][2] = 0.75f / (1 << 15); + mantissa_tab1[i][3] = 0.875f / (1 << 15); + + for (i = 1; i < 17; i++) { + mantissa_tab2[i][1] = mantissa_tab1[i][0] * 0.5f; + mantissa_tab2[i][2] = mantissa_tab1[i][0] * 0.75f; + mantissa_tab2[i][3] = mantissa_tab1[i][0] * 0.875f; + for (j = 1; j < 4; j++) + mantissa_tab3[i][j] = 1.0f / (1 << i) + 1.0f / (1 << j) - 1.0f / (1 << i + j); + } + + mantissa_tab3[1][3] = 0.6875f; + + for (i = 0; i < 25; i++) { + exponent_tab[i * 2 ] = 1.0f / (1 << i); + exponent_tab[i * 2 + 1] = M_SQRT1_2 / (1 << i); + } + + for (i = 1; i < 1024; i++) + gain_tab[i] = exp2f((i - 960) / 64.0f); + + // short 1 + ff_kbd_window_init(window, 3.0f, 128); + for (i = 0; i < 128; i++) + window[128 + i] = window[127 - i]; + + // start + for (i = 0; i < 192; i++) + window[256 + i] = start_window[i]; + + // short 2 + for (i = 0; i < 192; i++) + window[448 + i] = short_window2[i]; + for (i = 0; i < 64; i++) + window[640 + i] = window[63 - i]; + + // short 3 + for (i = 0; i < 64; i++) + window[704 + i] = short_window3[i]; + for (i = 0; i < 192; i++) + window[768 + i] = window[64 + i]; + + // bridge + for (i = 0; i < 128; i++) + window[960 + i] = window[i]; + for (i = 0; i < 64; i++) + window[1088 + i] = 1.0f; + + // long + ff_kbd_window_init(window + 1408, 3.0f, 256); + for (i = 0; i < 640; i++) + window[1664 + i] = 1.0f; + for (i = 0; i < 256; i++) + window[2304 + i] = window[1152 + i] = window[1663 - i]; + + // reverse start + for (i = 0; i < 192; i++) + window[2560 + i] = window[447 - i]; + + // reverse short 2 + for (i = 0; i < 256; i++) + window[2752 + i] = window[703 - i]; + + // reverse short 3 + for (i = 0; i < 256; i++) + window[3008 + i] = window[959 - i]; + + // reverse bridge + for (i = 0; i < 448; i++) + window[3264 + i] = window[1407 - i]; +} + static av_cold int dolby_e_init(AVCodecContext *avctx) { static AVOnce init_once = AV_ONCE_INIT; |