dxv.c File Reference

#include <stdint.h>
#include "libavutil/imgutils.h"
#include "libavutil/mem.h"
#include "avcodec.h"
#include "bytestream.h"
#include "codec_internal.h"
#include "dxv.h"
#include "lzf.h"
#include "texturedsp.h"
#include "thread.h"

Go to the source code of this file.

Data Structures
struct	DXVContext
struct	OpcodeTable

Macros
#define	CHECKPOINT(x)

Functions
static int	dxv_decompress_dxt1 (AVCodecContext *avctx)
static int	fill_ltable (GetByteContext *gb, uint32_t *table, int *nb_elements)
static int	fill_optable (unsigned *table0, OpcodeTable *table1, int nb_elements)
static int	get_opcodes (GetByteContext *gb, uint32_t *table, uint8_t *dst, int op_size, int nb_elements)
static int	dxv_decompress_opcodes (GetByteContext *gb, void *dstp, size_t op_size)
static int	dxv_decompress_cgo (DXVContext *ctx, GetByteContext *gb, uint8_t *tex_data, int tex_size, uint8_t *op_data, int *oindex, int op_size, uint8_t **dstp, int *statep, uint8_t **tab0, uint8_t **tab1, int offset)
static int	dxv_decompress_cocg (DXVContext *ctx, GetByteContext *gb, uint8_t *tex_data, int tex_size, uint8_t *op_data0, uint8_t *op_data1, int max_op_size0, int max_op_size1)
static int	dxv_decompress_yo (DXVContext *ctx, GetByteContext *gb, uint8_t *tex_data, int tex_size, uint8_t *op_data, int max_op_size)
static int	dxv_decompress_ycg6 (AVCodecContext *avctx)
static int	dxv_decompress_yg10 (AVCodecContext *avctx)
static int	dxv_decompress_dxt5 (AVCodecContext *avctx)
static int	dxv_decompress_lzf (AVCodecContext *avctx)
static int	dxv_decompress_raw (AVCodecContext *avctx)
static int	dxv_decode (AVCodecContext *avctx, AVFrame *frame, int *got_frame, AVPacket *avpkt)
static av_cold int	dxv_init (AVCodecContext *avctx)
static av_cold int	dxv_close (AVCodecContext *avctx)

Variables
const FFCodec	ff_dxv_decoder

Macro Definition Documentation

CHECKPOINT

#define CHECKPOINT

(

x

)

Value:

    do {                                                                      \
        if (state == 0) {                                                     \
            if (bytestream2_get_bytes_left(gbc) < 4)                          \
                return AVERROR_INVALIDDATA;                                   \
            value = bytestream2_get_le32(gbc);                                \
            state = 16;                                                       \
        }                                                                     \
        op = value & 0x3;                                                     \
        value >>= 2;                                                          \
        state--;                                                              \
        switch (op) {                                                         \
        case 1:                                                               \
            idx = x;                                                          \
            break;                                                            \
        case 2:                                                               \
            idx = (bytestream2_get_byte(gbc) + 2) * x;                        \
            if (idx > pos) {                                                  \
                av_log(avctx, AV_LOG_ERROR, "idx %d > %d\n", idx, pos);       \
                return AVERROR_INVALIDDATA;                                   \
            }                                                                 \
            break;                                                            \
        case 3:                                                               \
            idx = (bytestream2_get_le16(gbc) + 0x102) * x;                    \
            if (idx > pos) {                                                  \
                av_log(avctx, AV_LOG_ERROR, "idx %d > %d\n", idx, pos);       \
                return AVERROR_INVALIDDATA;                                   \
            }                                                                 \
            break;                                                            \
        }                                                                     \
    } while(0)

Definition at line 59 of file dxv.c.

Function Documentation

dxv_decompress_dxt1()

static int dxv_decompress_dxt1 ( AVCodecContext *  avctx )

static

Definition at line 91 of file dxv.c.

Referenced by dxv_decode().

fill_ltable()

static int fill_ltable ( GetByteContext *  gb, uint32_t *  table, int *  nb_elements  )

static

Definition at line 146 of file dxv.c.

Referenced by dxv_decompress_opcodes().

fill_optable()

static int fill_optable ( unsigned *  table0, OpcodeTable *  table1, int  nb_elements  )

static

Definition at line 190 of file dxv.c.

Referenced by get_opcodes().

get_opcodes()

static int get_opcodes ( GetByteContext *  gb, uint32_t *  table, uint8_t *  dst, int  op_size, int  nb_elements  )

static

Definition at line 231 of file dxv.c.

Referenced by dxv_decompress_opcodes().

dxv_decompress_opcodes()

static int dxv_decompress_opcodes ( GetByteContext *  gb, void *  dstp, size_t  op_size  )

static

Definition at line 273 of file dxv.c.

Referenced by dxv_decompress_cocg(), and dxv_decompress_yo().

dxv_decompress_cgo()

static int dxv_decompress_cgo ( DXVContext *  ctx, GetByteContext *  gb, uint8_t *  tex_data, int  tex_size, uint8_t *  op_data, int *  oindex, int  op_size, uint8_t **  dstp, int *  statep, uint8_t **  tab0, uint8_t **  tab1, int  offset  )

static

Definition at line 300 of file dxv.c.

Referenced by dxv_decompress_cocg(), and dxv_decompress_yo().

dxv_decompress_cocg()

static int dxv_decompress_cocg ( DXVContext *  ctx, GetByteContext *  gb, uint8_t *  tex_data, int  tex_size, uint8_t *  op_data0, uint8_t *  op_data1, int  max_op_size0, int  max_op_size1  )

static

Definition at line 540 of file dxv.c.

Referenced by dxv_decompress_ycg6(), and dxv_decompress_yg10().

dxv_decompress_yo()

static int dxv_decompress_yo ( DXVContext *  ctx, GetByteContext *  gb, uint8_t *  tex_data, int  tex_size, uint8_t *  op_data, int  max_op_size  )

static

Definition at line 596 of file dxv.c.

Referenced by dxv_decompress_ycg6().

dxv_decompress_ycg6()

static int dxv_decompress_ycg6 ( AVCodecContext *  avctx )

static

Definition at line 638 of file dxv.c.

Referenced by dxv_decode().

dxv_decompress_yg10()

static int dxv_decompress_yg10 ( AVCodecContext *  avctx )

static

Definition at line 654 of file dxv.c.

Referenced by dxv_decode().

dxv_decompress_dxt5()

static int dxv_decompress_dxt5 ( AVCodecContext *  avctx )

static

Definition at line 671 of file dxv.c.

Referenced by dxv_decode().

dxv_decompress_lzf()

static int dxv_decompress_lzf ( AVCodecContext *  avctx )

static

Definition at line 828 of file dxv.c.

Referenced by dxv_decode().

dxv_decompress_raw()

static int dxv_decompress_raw ( AVCodecContext *  avctx )

static

Definition at line 834 of file dxv.c.

Referenced by dxv_decode().

dxv_decode()

static int dxv_decode ( AVCodecContext *  avctx, AVFrame *  frame, int *  got_frame, AVPacket *  avpkt  )

static

Definition at line 846 of file dxv.c.

dxv_init()

static av_cold int dxv_init ( AVCodecContext *  avctx )

static

Definition at line 1075 of file dxv.c.

dxv_close()

static av_cold int dxv_close ( AVCodecContext *  avctx )

static

Definition at line 1095 of file dxv.c.

Variable Documentation

ff_dxv_decoder

const FFCodec ff_dxv_decoder

Initial value:

= {
    .p.name         = "dxv",
    CODEC_LONG_NAME("Resolume DXV"),
    .p.type         = AVMEDIA_TYPE_VIDEO,
    .p.id           = AV_CODEC_ID_DXV,
    .init           = dxv_init,
    FF_CODEC_DECODE_CB(dxv_decode),
    .close          = dxv_close,
    .priv_data_size = sizeof(DXVContext),
    .p.capabilities = AV_CODEC_CAP_DR1 |
                      AV_CODEC_CAP_SLICE_THREADS |
                      AV_CODEC_CAP_FRAME_THREADS,
    .caps_internal  = FF_CODEC_CAP_INIT_CLEANUP,
}

Definition at line 1114 of file dxv.c.