dfa.c File Reference

#include <inttypes.h>
#include "avcodec.h"
#include "bytestream.h"
#include "internal.h"
#include "libavutil/avassert.h"
#include "libavutil/imgutils.h"
#include "libavutil/mem.h"

Go to the source code of this file.

Data Structures
struct	DfaContext

Typedefs
typedef int(*	chunk_decoder) (GetByteContext *gb, uint8_t *frame, int width, int height)

Functions
static av_cold int	dfa_decode_init (AVCodecContext *avctx)
static int	decode_copy (GetByteContext *gb, uint8_t *frame, int width, int height)
static int	decode_tsw1 (GetByteContext *gb, uint8_t *frame, int width, int height)
static int	decode_dsw1 (GetByteContext *gb, uint8_t *frame, int width, int height)
static int	decode_dds1 (GetByteContext *gb, uint8_t *frame, int width, int height)
static int	decode_bdlt (GetByteContext *gb, uint8_t *frame, int width, int height)
static int	decode_wdlt (GetByteContext *gb, uint8_t *frame, int width, int height)
static int	decode_tdlt (GetByteContext *gb, uint8_t *frame, int width, int height)
static int	decode_blck (GetByteContext *gb, uint8_t *frame, int width, int height)
static int	dfa_decode_frame (AVCodecContext *avctx, void *data, int *got_frame, AVPacket *avpkt)
static av_cold int	dfa_decode_end (AVCodecContext *avctx)

Variables
static const chunk_decoder	decoder [8]
static const char *const	chunk_name [8]
AVCodec	ff_dfa_decoder

Typedef Documentation

chunk_decoder

typedef int(* chunk_decoder) (GetByteContext *gb, uint8_t *frame, int width, int height)

Definition at line 328 of file dfa.c.

Function Documentation

dfa_decode_init()

static av_cold int dfa_decode_init ( AVCodecContext *  avctx )

static

Definition at line 38 of file dfa.c.

decode_copy()

static int decode_copy ( GetByteContext *  gb, uint8_t *  frame, int  width, int  height  )

static

Definition at line 56 of file dfa.c.

decode_tsw1()

static int decode_tsw1 ( GetByteContext *  gb, uint8_t *  frame, int  width, int  height  )

static

Definition at line 65 of file dfa.c.

decode_dsw1()

static int decode_dsw1 ( GetByteContext *  gb, uint8_t *  frame, int  width, int  height  )

static

Definition at line 108 of file dfa.c.

decode_dds1()

static int decode_dds1 ( GetByteContext *  gb, uint8_t *  frame, int  width, int  height  )

static

Definition at line 145 of file dfa.c.

decode_bdlt()

static int decode_bdlt ( GetByteContext *  gb, uint8_t *  frame, int  width, int  height  )

static

Definition at line 196 of file dfa.c.

decode_wdlt()

static int decode_wdlt ( GetByteContext *  gb, uint8_t *  frame, int  width, int  height  )

static

Definition at line 238 of file dfa.c.

decode_tdlt()

static int decode_tdlt ( GetByteContext *  gb, uint8_t *  frame, int  width, int  height  )

static

Definition at line 299 of file dfa.c.

decode_blck()

static int decode_blck ( GetByteContext *  gb, uint8_t *  frame, int  width, int  height  )

static

Definition at line 321 of file dfa.c.

dfa_decode_frame()

static int dfa_decode_frame ( AVCodecContext *  avctx, void *  data, int *  got_frame, AVPacket *  avpkt  )

static

Definition at line 339 of file dfa.c.

dfa_decode_end()

static av_cold int dfa_decode_end ( AVCodecContext *  avctx )

static

Definition at line 406 of file dfa.c.

Variable Documentation

decoder

const chunk_decoder decoder[8]

static

Initial value:

= {
    decode_copy, decode_tsw1, decode_bdlt, decode_wdlt,
    decode_tdlt, decode_dsw1, decode_blck, decode_dds1,
}

Examples:

hw_decode.c, qsvdec.c, and vaapi_transcode.c.

Definition at line 330 of file dfa.c.

Referenced by av_find_best_stream(), commit_bitstream_and_slice_buffer(), dfa_decode_frame(), ff_dxva2_commit_buffer(), ff_dxva2_common_end_frame(), ffmal_update_format(), ffmmal_flush(), ffmmal_init_decoder(), ffmmal_read_frame(), ffmmal_stop_decoder(), main(), open_input_file(), rkmpp_flush(), rkmpp_init_decoder(), rkmpp_receive_frame(), rkmpp_release_decoder(), rkmpp_retrieve_frame(), rkmpp_send_packet(), and rkmpp_write_data().

chunk_name

const char* const chunk_name[8]

static

Initial value:

= {
    "COPY", "TSW1", "BDLT", "WDLT", "TDLT", "DSW1", "BLCK", "DDS1"
}

Definition at line 335 of file dfa.c.

Referenced by dfa_decode_frame().

ff_dfa_decoder

AVCodec ff_dfa_decoder

Initial value:

= {
    .name           = "dfa",
    .long_name      = NULL_IF_CONFIG_SMALL("Chronomaster DFA"),
    .type           = AVMEDIA_TYPE_VIDEO,
    .id             = AV_CODEC_ID_DFA,
    .priv_data_size = sizeof(DfaContext),
    .init           = dfa_decode_init,
    .close          = dfa_decode_end,
    .decode         = dfa_decode_frame,
    .capabilities   = AV_CODEC_CAP_DR1,
}

Definition at line 415 of file dfa.c.