mpegvideodata.c File Reference

#include <stdint.h>

Go to the source code of this file.

Variables
const uint8_t	ff_default_chroma_qscale_table [32]
const uint8_t	ff_mpeg2_non_linear_qscale [32]
const uint8_t	ff_mpeg12_dc_scale_table [4][32]
const uint8_t	ff_alternate_horizontal_scan [64]
const uint8_t	ff_alternate_vertical_scan [64]

Variable Documentation

ff_default_chroma_qscale_table

const uint8_t ff_default_chroma_qscale_table[32]

Initial value:

= {
     0,  1,  2,  3,  4,  5,  6,  7,  8,  9, 10, 11, 12, 13, 14, 15,
    16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31
}

Definition at line 21 of file mpegvideodata.c.

Referenced by ff_mpv_common_defaults().

ff_mpeg2_non_linear_qscale

const uint8_t ff_mpeg2_non_linear_qscale[32]

Initial value:

= {
     0,  1,  2,  3,  4,  5,   6,   7,
     8, 10, 12, 14, 16, 18,  20,  22,
    24, 28, 32, 36, 40, 44,  48,  52,
    56, 64, 72, 80, 88, 96, 104, 112,
}

Definition at line 26 of file mpegvideodata.c.

Referenced by dct_quantize_trellis_c(), dct_unquantize_mpeg2_inter_c(), dct_unquantize_mpeg2_intra_bitexact(), dct_unquantize_mpeg2_intra_c(), ff_convert_matrix(), mpeg_get_qscale(), and update_qscale().

ff_mpeg12_dc_scale_table

const uint8_t ff_mpeg12_dc_scale_table[4][32]

Initial value:

= {
{
    8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8,
    8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8,
},
{
    4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
    4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
},
{
    2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
    2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
},
{
    1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
    1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
},
}

Definition at line 33 of file mpegvideodata.c.

Referenced by encode_picture(), and ff_speedhq_encode_init().

ff_alternate_horizontal_scan

const uint8_t ff_alternate_horizontal_scan[64]

Initial value:

= {
     0,  1,  2,  3,  8,  9, 16, 17,
    10, 11,  4,  5,  6,  7, 15, 14,
    13, 12, 19, 18, 24, 25, 32, 33,
    26, 27, 20, 21, 22, 23, 28, 29,
    30, 31, 34, 35, 40, 41, 48, 49,
    42, 43, 36, 37, 38, 39, 44, 45,
    46, 47, 50, 51, 56, 57, 58, 59,
    52, 53, 54, 55, 60, 61, 62, 63,
}

Definition at line 52 of file mpegvideodata.c.

Referenced by decode_studio_vop_header(), decode_vop_header(), and ff_mpv_idct_init().

ff_alternate_vertical_scan

const uint8_t ff_alternate_vertical_scan[64]

Initial value:

= {
     0,  8, 16, 24,  1,  9,  2, 10,
    17, 25, 32, 40, 48, 56, 57, 49,
    41, 33, 26, 18,  3, 11,  4, 12,
    19, 27, 34, 42, 50, 58, 35, 43,
    51, 59, 20, 28,  5, 13,  6, 14,
    21, 29, 36, 44, 52, 60, 37, 45,
    53, 61, 22, 30,  7, 15, 23, 31,
    38, 46, 54, 62, 39, 47, 55, 63,
}

Definition at line 63 of file mpegvideodata.c.

Referenced by decode_studio_vop_header(), decode_vop_header(), ff_mpv_idct_init(), ipu_decode_frame(), and mpeg_decode_picture_coding_extension().