libavcodec/dirac.c File Reference

Dirac Decoder. More...

#include "libavutil/imgutils.h"
#include "dirac.h"
#include "avcodec.h"
#include "golomb.h"
#include "mpeg12data.h"

Go to the source code of this file.

Functions

static int parse_source_parameters (AVCodecContext *avctx, GetBitContext *gb, dirac_source_params *source)
 Dirac Specification -> 10.3 Parse Source Parameters.
int avpriv_dirac_parse_sequence_header (AVCodecContext *avctx, GetBitContext *gb, dirac_source_params *source)
 Dirac Specification -> 10.

Variables

static const dirac_source_params dirac_source_parameters_defaults []
static const AVRational dirac_preset_aspect_ratios []
 Dirac Specification -> Table 10.4 - Available preset pixel aspect ratio values.
static const AVRational dirac_frame_rate []
 Dirac Specification -> Values 9,10 of 10.3.5 Frame Rate.
struct {
   uint8_t   bitdepth
   enum AVColorRange   color_range
pixel_range_presets []
 Dirac Specification -> This should be equivalent to Table 10.5 Available signal range presets.
static enum AVColorPrimaries dirac_primaries []
struct {
   enum AVColorPrimaries   color_primaries
   enum AVColorSpace   colorspace
   enum AVColorTransferCharacteristic   color_trc
dirac_color_presets []
static enum PixelFormat dirac_pix_fmt [2][3]
 Dirac Specification -> Table 10.2 Supported chroma sampling formats + Luma Offset.


Detailed Description

Dirac Decoder.

Author:
Marco Gerards <marco@gnu.org>, David Conrad, Jordi Ortiz <nenjordi@gmail.com>

Definition in file dirac.c.


Function Documentation

int avpriv_dirac_parse_sequence_header ( AVCodecContext avctx,
GetBitContext gb,
dirac_source_params source 
)

Dirac Specification -> 10.

Sequence Header. sequence_header()

Definition at line 274 of file dirac.c.

Referenced by dirac_decode_data_unit(), and dirac_header().

static int parse_source_parameters ( AVCodecContext avctx,
GetBitContext gb,
dirac_source_params source 
) [static]

Dirac Specification -> 10.3 Parse Source Parameters.

source_parameters(base_video_format)

Definition at line 127 of file dirac.c.

Referenced by avpriv_dirac_parse_sequence_header().


Variable Documentation

uint8_t bitdepth

Definition at line 87 of file dirac.c.

Definition at line 103 of file dirac.c.

Definition at line 88 of file dirac.c.

Definition at line 105 of file dirac.c.

Definition at line 104 of file dirac.c.

struct { ... } dirac_color_presets[] [static]

Referenced by parse_source_parameters().

const AVRational dirac_frame_rate[] [static]

Initial value:

 {
    {15000, 1001},
    {25, 2},
}
Dirac Specification -> Values 9,10 of 10.3.5 Frame Rate.

Table 10.3 Available preset frame rate values

Definition at line 77 of file dirac.c.

enum PixelFormat dirac_pix_fmt[2][3] [static]

Initial value:

Dirac Specification -> Table 10.2 Supported chroma sampling formats + Luma Offset.

Definition at line 118 of file dirac.c.

Referenced by parse_source_parameters().

Initial value:

 {
    {1, 1},
    {10, 11},
    {12, 11},
    {40, 33},
    {16, 11},
    {4, 3},
}
Dirac Specification -> Table 10.4 - Available preset pixel aspect ratio values.

Definition at line 64 of file dirac.c.

Initial value:

Definition at line 96 of file dirac.c.

Referenced by parse_source_parameters().

Initial value:

 {
    { 640,  480,  2, 0, 0, 1,  1, 640,  480,  0, 0, 1, 0 },
    { 176,  120,  2, 0, 0, 9,  2, 176,  120,  0, 0, 1, 1 },
    { 176,  144,  2, 0, 1, 10, 3, 176,  144,  0, 0, 1, 2 },
    { 352,  240,  2, 0, 0, 9,  2, 352,  240,  0, 0, 1, 1 },
    { 352,  288,  2, 0, 1, 10, 3, 352,  288,  0, 0, 1, 2 },
    { 704,  480,  2, 0, 0, 9,  2, 704,  480,  0, 0, 1, 1 },
    { 704,  576,  2, 0, 1, 10, 3, 704,  576,  0, 0, 1, 2 },
    { 720,  480,  1, 1, 0, 4,  2, 704,  480,  8, 0, 3, 1 },
    { 720,  576,  1, 1, 1, 3,  3, 704,  576,  8, 0, 3, 2 },
    { 1280, 720,  1, 0, 1, 7,  1, 1280, 720,  0, 0, 3, 3 },
    { 1280, 720,  1, 0, 1, 6,  1, 1280, 720,  0, 0, 3, 3 },
    { 1920, 1080, 1, 1, 1, 4,  1, 1920, 1080, 0, 0, 3, 3 },
    { 1920, 1080, 1, 1, 1, 3,  1, 1920, 1080, 0, 0, 3, 3 },
    { 1920, 1080, 1, 0, 1, 7,  1, 1920, 1080, 0, 0, 3, 3 },
    { 1920, 1080, 1, 0, 1, 6,  1, 1920, 1080, 0, 0, 3, 3 },
    { 2048, 1080, 0, 0, 1, 2,  1, 2048, 1080, 0, 0, 4, 4 },
    { 4096, 2160, 0, 0, 1, 2,  1, 4096, 2160, 0, 0, 4, 4 },
    { 3840, 2160, 1, 0, 1, 7,  1, 3840, 2160, 0, 0, 3, 3 },
    { 3840, 2160, 1, 0, 1, 6,  1, 3840, 2160, 0, 0, 3, 3 },
    { 7680, 4320, 1, 0, 1, 7,  1, 3840, 2160, 0, 0, 3, 3 },
    { 7680, 4320, 1, 0, 1, 6,  1, 3840, 2160, 0, 0, 3, 3 },
}

Definition at line 36 of file dirac.c.

struct { ... } pixel_range_presets[] [static]

Dirac Specification -> This should be equivalent to Table 10.5 Available signal range presets.

Referenced by parse_source_parameters().


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