hvirtual/quicktime/ffmpeg/libavcodec/asv1.c File Reference

#include "avcodec.h"
#include "dsputil.h"
#include "mpegvideo.h"

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Data Structures

struct  ASV1Context

Defines

#define VLC_BITS   6
#define ASV2_LEVEL_VLC_BITS   10

Functions

static void init_vlcs (ASV1Context *a)
static int asv2_get_bits (GetBitContext *gb, int n)
static void asv2_put_bits (PutBitContext *pb, int n, int v)
static int asv1_get_level (GetBitContext *gb)
static int asv2_get_level (GetBitContext *gb)
static void asv1_put_level (PutBitContext *pb, int level)
static void asv2_put_level (PutBitContext *pb, int level)
static int asv1_decode_block (ASV1Context *a, DCTELEM block[64])
static int asv2_decode_block (ASV1Context *a, DCTELEM block[64])
static void asv1_encode_block (ASV1Context *a, DCTELEM block[64])
static void asv2_encode_block (ASV1Context *a, DCTELEM block[64])
static int decode_mb (ASV1Context *a, DCTELEM block[6][64])
static int encode_mb (ASV1Context *a, DCTELEM block[6][64])
static void idct_put (ASV1Context *a, int mb_x, int mb_y)
static void dct_get (ASV1Context *a, int mb_x, int mb_y)
static int decode_frame (AVCodecContext *avctx, void *data, int *data_size, uint8_t *buf, int buf_size)
static int encode_frame (AVCodecContext *avctx, unsigned char *buf, int buf_size, void *data)
static void common_init (AVCodecContext *avctx)
static int decode_init (AVCodecContext *avctx)
static int encode_init (AVCodecContext *avctx)
static int decode_end (AVCodecContext *avctx)

Variables

static const uint8_t scantab [64]
static const uint8_t ccp_tab [17][2]
static const uint8_t level_tab [7][2]
static const uint8_t dc_ccp_tab [8][2]
static const uint8_t ac_ccp_tab [16][2]
static const uint8_t asv2_level_tab [63][2]
static VLC ccp_vlc
static VLC level_vlc
static VLC dc_ccp_vlc
static VLC ac_ccp_vlc
static VLC asv2_level_vlc
AVCodec asv1_decoder
AVCodec asv2_decoder

Detailed Description

ASUS V1/V2 codec.

Definition in file asv1.c.

Define Documentation

#define ASV2_LEVEL_VLC_BITS   10

Definition at line 33 of file asv1.c.

Referenced by asv2_get_level(), and init_vlcs().

#define VLC_BITS   6

Definition at line 32 of file asv1.c.

Referenced by asv1_decode_block(), asv1_get_level(), asv2_decode_block(), decode_422_bitstream(), decode_bgr_bitstream(), decode_gray_bitstream(), init_vlcs(), read_huffman_tables(), and read_old_huffman_tables().

Function Documentation

static int asv1_decode_block ( ASV1Context *  a,
DCTELEM  block[64] 
) [inline, static]

Definition at line 180 of file asv1.c.

References asv1_get_level(), av_log(), AV_LOG_ERROR, ASV1Context::avctx, ASV1Context::gb, get_bits(), get_vlc2(), ASV1Context::intra_matrix, ScanTable::permutated, ASV1Context::scantable, VLC::table, and VLC_BITS.

Referenced by decode_mb().

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static void asv1_encode_block ( ASV1Context *  a,
DCTELEM  block[64] 
) [inline, static]

Definition at line 233 of file asv1.c.

References asv1_put_level(), ccp_tab, ASV1Context::pb, put_bits(), ASV1Context::q_intra_matrix, and scantab.

Referenced by encode_mb().

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static int asv1_get_level ( GetBitContext *  gb  )  [inline, static]

Definition at line 146 of file asv1.c.

References get_sbits(), get_vlc2(), VLC::table, and VLC_BITS.

Referenced by asv1_decode_block().

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static void asv1_put_level ( PutBitContext *  pb,
int  level 
) [inline, static]

Definition at line 160 of file asv1.c.

References level_tab, and put_bits().

Referenced by asv1_encode_block().

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static int asv2_decode_block ( ASV1Context *  a,
DCTELEM  block[64] 
) [inline, static]

Definition at line 205 of file asv1.c.

References asv2_get_bits(), asv2_get_level(), ASV1Context::gb, get_vlc2(), ASV1Context::intra_matrix, ScanTable::permutated, ASV1Context::scantable, VLC::table, and VLC_BITS.

Referenced by decode_mb().

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static void asv2_encode_block ( ASV1Context *  a,
DCTELEM  block[64] 
) [inline, static]

Definition at line 266 of file asv1.c.

References ac_ccp_tab, asv2_put_bits(), asv2_put_level(), dc_ccp_tab, ASV1Context::pb, put_bits(), ASV1Context::q_intra_matrix, and scantab.

Referenced by encode_mb().

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static int asv2_get_bits ( GetBitContext *  gb,
int  n 
) [inline, static]

Definition at line 138 of file asv1.c.

References ff_reverse, and get_bits().

Referenced by asv2_decode_block(), and asv2_get_level().

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static int asv2_get_level ( GetBitContext *  gb  )  [inline, static]

Definition at line 153 of file asv1.c.

References asv2_get_bits(), ASV2_LEVEL_VLC_BITS, get_vlc2(), and VLC::table.

Referenced by asv2_decode_block().

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static void asv2_put_bits ( PutBitContext *  pb,
int  n,
int  v 
) [inline, static]

Definition at line 142 of file asv1.c.

References ff_reverse, and put_bits().

Referenced by asv2_encode_block(), and asv2_put_level().

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static void asv2_put_level ( PutBitContext *  pb,
int  level 
) [inline, static]

Definition at line 170 of file asv1.c.

References asv2_level_tab, asv2_put_bits(), and put_bits().

Referenced by asv2_encode_block().

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static void common_init ( AVCodecContext *  avctx  )  [static]

Definition at line 518 of file asv1.c.

References a, ASV1Context::avctx, AVCodecContext::coded_frame, ASV1Context::dsp, dsputil_init(), AVCodecContext::height, ASV1Context::mb_height, ASV1Context::mb_height2, ASV1Context::mb_width, ASV1Context::mb_width2, ASV1Context::picture, AVCodecContext::priv_data, and AVCodecContext::width.

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static void dct_get ( ASV1Context *  a,
int  mb_x,
int  mb_y 
) [inline, static]

Definition at line 360 of file asv1.c.

References ASV1Context::avctx, ASV1Context::block, CODEC_FLAG_GRAY, ASV1Context::dsp, DSPContext::fdct, AVCodecContext::flags, DSPContext::get_pixels, and ASV1Context::picture.

Referenced by encode_frame().

static int decode_end ( AVCodecContext *  avctx  )  [static]

Definition at line 590 of file asv1.c.

References a, av_freep(), ASV1Context::bitstream_buffer, ASV1Context::bitstream_buffer_size, ASV1Context::picture, and AVCodecContext::priv_data.

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static int decode_frame ( AVCodecContext *  avctx,
void *  data,
int *  data_size,
uint8_t *  buf,
int  buf_size 
) [static]

Definition at line 384 of file asv1.c.

References a, av_fast_realloc(), av_log(), AV_LOG_ERROR, ASV1Context::bitstream_buffer, ASV1Context::bitstream_buffer_size, ASV1Context::block, DSPContext::bswap_buf, AVCodecContext::codec_id, CODEC_ID_ASV1, decode_mb(), ASV1Context::dsp, emms_c, FF_INPUT_BUFFER_PADDING_SIZE, ff_reverse, ASV1Context::gb, get_bits1(), get_bits_count(), AVCodecContext::get_buffer, I_TYPE, idct_put(), init_get_bits(), ASV1Context::mb_height, ASV1Context::mb_height2, ASV1Context::mb_width, ASV1Context::mb_width2, ASV1Context::picture, picture, AVCodecContext::priv_data, AVCodecContext::release_buffer, and s.

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static int decode_init ( AVCodecContext *  avctx  )  [static]

Definition at line 532 of file asv1.c.

References a, av_log(), AV_LOG_ERROR, av_malloc(), AVCodecContext::codec_id, CODEC_ID_ASV1, common_init(), ASV1Context::dsp, AVCodecContext::extradata, ff_init_scantable(), ff_mpeg1_default_intra_matrix, DSPContext::idct_permutation, init_vlcs(), ASV1Context::intra_matrix, ASV1Context::inv_qscale, ASV1Context::mb_height, ASV1Context::mb_width, ASV1Context::picture, AVCodecContext::pix_fmt, PIX_FMT_YUV420P, AVCodecContext::priv_data, scantab, and ASV1Context::scantable.

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static int decode_mb ( ASV1Context *  a,
DCTELEM  block[6][64] 
) [inline, static]

Definition at line 304 of file asv1.c.

References asv1_decode_block(), asv2_decode_block(), ASV1Context::avctx, DSPContext::clear_blocks, AVCodecContext::codec_id, CODEC_ID_ASV1, and ASV1Context::dsp.

Referenced by decode_frame(), decode_slice(), ff_er_frame_end(), and guess_mv().

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static int encode_frame ( AVCodecContext *  avctx,
unsigned char *  buf,
int  buf_size,
void *  data 
) [static]

Definition at line 464 of file asv1.c.

References a, align_put_bits(), ASV1Context::block, DSPContext::bswap_buf, AVCodecContext::codec_id, CODEC_ID_ASV1, dct_get(), ASV1Context::dsp, emms_c, encode_mb(), ff_reverse, I_TYPE, init_put_bits(), ASV1Context::mb_height, ASV1Context::mb_height2, ASV1Context::mb_width, ASV1Context::mb_width2, ASV1Context::pb, ASV1Context::picture, AVCodecContext::priv_data, put_bits(), and put_bits_count().

Referenced by MPA_encode_frame().

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static int encode_init ( AVCodecContext *  avctx  )  [static]

Definition at line 566 of file asv1.c.

References a, av_mallocz(), AVCodecContext::codec_id, CODEC_ID_ASV1, common_init(), AVCodecContext::extradata, AVCodecContext::extradata_size, ff_mpeg1_default_intra_matrix, FF_QUALITY_SCALE, AVCodecContext::global_quality, ASV1Context::inv_qscale, le2me_32, AVCodecContext::priv_data, and ASV1Context::q_intra_matrix.

Referenced by hdr_to_frps().

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static int encode_mb ( ASV1Context *  a,
DCTELEM  block[6][64] 
) [inline, static]

Definition at line 323 of file asv1.c.

References asv1_encode_block(), asv2_encode_block(), av_log(), AV_LOG_ERROR, ASV1Context::avctx, PutBitContext::buf, PutBitContext::buf_end, AVCodecContext::codec_id, CODEC_ID_ASV1, ASV1Context::pb, and put_bits_count().

Referenced by encode_frame().

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static void idct_put ( ASV1Context *  a,
int  mb_x,
int  mb_y 
) [inline, static]

Definition at line 341 of file asv1.c.

References ASV1Context::avctx, ASV1Context::block, CODEC_FLAG_GRAY, ASV1Context::dsp, AVCodecContext::flags, DSPContext::idct_put, and ASV1Context::picture.

static void init_vlcs ( ASV1Context *  a  )  [static]

Definition at line 113 of file asv1.c.

References ac_ccp_tab, asv2_level_tab, ASV2_LEVEL_VLC_BITS, ccp_tab, dc_ccp_tab, init_vlc(), level_tab, and VLC_BITS.

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Variable Documentation

const uint8_t ac_ccp_tab[16][2] [static]

Initial value:

{
    {0x00,2}, {0x3B,6}, {0x0A,4}, {0x3A,6},
    {0x02,3}, {0x39,6}, {0x3C,6}, {0x38,6},
    {0x03,3}, {0x3D,6}, {0x08,4}, {0x1F,5},
    {0x09,4}, {0x0B,4}, {0x0D,4}, {0x0C,4},
}

Definition at line 83 of file asv1.c.

Referenced by asv2_encode_block(), and init_vlcs().

VLC ac_ccp_vlc [static]

Definition at line 110 of file asv1.c.

AVCodec asv1_decoder

Initial value:

 {
    "asv1",
    CODEC_TYPE_VIDEO,
    CODEC_ID_ASV1,
    sizeof(ASV1Context),
    decode_init,
    NULL,
    decode_end,
    decode_frame,
    CODEC_CAP_DR1,
}

Definition at line 600 of file asv1.c.

Referenced by avcodec_register_all().

AVCodec asv2_decoder

Initial value:

 {
    "asv2",
    CODEC_TYPE_VIDEO,
    CODEC_ID_ASV2,
    sizeof(ASV1Context),
    decode_init,
    NULL,
    decode_end,
    decode_frame,
    CODEC_CAP_DR1,
}

Definition at line 612 of file asv1.c.

Referenced by avcodec_register_all().

const uint8_t asv2_level_tab[63][2] [static]

Initial value:

{
    {0x3F,10},{0x2F,10},{0x37,10},{0x27,10},{0x3B,10},{0x2B,10},{0x33,10},{0x23,10},
    {0x3D,10},{0x2D,10},{0x35,10},{0x25,10},{0x39,10},{0x29,10},{0x31,10},{0x21,10},
    {0x1F, 8},{0x17, 8},{0x1B, 8},{0x13, 8},{0x1D, 8},{0x15, 8},{0x19, 8},{0x11, 8},
    {0x0F, 6},{0x0B, 6},{0x0D, 6},{0x09, 6},
    {0x07, 4},{0x05, 4},
    {0x03, 2},
    {0x00, 5},
    {0x02, 2},
    {0x04, 4},{0x06, 4},
    {0x08, 6},{0x0C, 6},{0x0A, 6},{0x0E, 6},
    {0x10, 8},{0x18, 8},{0x14, 8},{0x1C, 8},{0x12, 8},{0x1A, 8},{0x16, 8},{0x1E, 8},
    {0x20,10},{0x30,10},{0x28,10},{0x38,10},{0x24,10},{0x34,10},{0x2C,10},{0x3C,10},
    {0x22,10},{0x32,10},{0x2A,10},{0x3A,10},{0x26,10},{0x36,10},{0x2E,10},{0x3E,10},
}

Definition at line 90 of file asv1.c.

Referenced by asv2_put_level(), and init_vlcs().

VLC asv2_level_vlc [static]

Definition at line 111 of file asv1.c.

const uint8_t ccp_tab[17][2] [static]

Initial value:

{
    {0x2,2}, {0x7,5}, {0xB,5}, {0x3,5},
    {0xD,5}, {0x5,5}, {0x9,5}, {0x1,5},
    {0xE,5}, {0x6,5}, {0xA,5}, {0x2,5}, 
    {0xC,5}, {0x4,5}, {0x8,5}, {0x3,2},
    {0xF,5}, 
}

Definition at line 66 of file asv1.c.

Referenced by asv1_encode_block(), and init_vlcs().

VLC ccp_vlc [static]

Definition at line 107 of file asv1.c.

const uint8_t dc_ccp_tab[8][2] [static]

Initial value:

{
    {0x1,2}, {0xD,4}, {0xF,4}, {0xC,4},
    {0x5,3}, {0xE,4}, {0x4,3}, {0x0,2},
}

Definition at line 78 of file asv1.c.

Referenced by asv2_encode_block(), and init_vlcs().

VLC dc_ccp_vlc [static]

Definition at line 109 of file asv1.c.

const uint8_t level_tab[7][2] [static]

Initial value:

{
    {3,4}, {3,3}, {3,2}, {0,3}, {2,2}, {2,3}, {2,4}
}

Definition at line 74 of file asv1.c.

Referenced by asv1_put_level(), and init_vlcs().

VLC level_vlc [static]

Definition at line 108 of file asv1.c.

const uint8_t scantab[64] [static]

Initial value:

{
    0x00,0x08,0x01,0x09,0x10,0x18,0x11,0x19,
    0x02,0x0A,0x03,0x0B,0x12,0x1A,0x13,0x1B,
    0x04,0x0C,0x05,0x0D,0x20,0x28,0x21,0x29,
    0x06,0x0E,0x07,0x0F,0x14,0x1C,0x15,0x1D,
    0x22,0x2A,0x23,0x2B,0x30,0x38,0x31,0x39,
    0x16,0x1E,0x17,0x1F,0x24,0x2C,0x25,0x2D,
    0x32,0x3A,0x33,0x3B,0x26,0x2E,0x27,0x2F,
    0x34,0x3C,0x35,0x3D,0x36,0x3E,0x37,0x3F,
}

Definition at line 54 of file asv1.c.

Referenced by asv1_encode_block(), asv2_encode_block(), and decode_init().

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