pixlet.c File Reference

#include <stdint.h>
#include "libavutil/intmath.h"
#include "libavutil/mem.h"
#include "avcodec.h"
#include "bytestream.h"
#include "codec_internal.h"
#include "decode.h"
#include "get_bits.h"
#include "thread.h"
#include "unary.h"

Go to the source code of this file.

Data Structures
struct	SubBand
struct	PixletContext

Macros
#define	NB_LEVELS   4
#define	PIXLET_MAGIC   0xDEADBEEF
#define	H   0
#define	V   1

Functions
static av_cold int	pixlet_init (AVCodecContext *avctx)
static void	free_buffers (AVCodecContext *avctx)
static av_cold int	pixlet_close (AVCodecContext *avctx)
static int	init_decoder (AVCodecContext *avctx)
static int	read_low_coeffs (AVCodecContext *avctx, int16_t *dst, int size, int width, ptrdiff_t stride)
static int	read_high_coeffs (AVCodecContext *avctx, const uint8_t *src, int16_t *dst, int size, int c, int a, int d, int width, ptrdiff_t stride)
static int	read_highpass (AVCodecContext *avctx, const uint8_t *ptr, int plane, AVFrame *frame)
static void	lowpass_prediction (int16_t *dst, int16_t *pred, int width, int height, ptrdiff_t stride)
static void	filterfn (int16_t *dest, int16_t *tmp, unsigned size, int64_t scale)
static void	reconstruction (AVCodecContext *avctx, int16_t *dest, unsigned width, unsigned height, ptrdiff_t stride, int64_t *scaling_h, int64_t *scaling_v)
static void	build_luma_lut (AVCodecContext *avctx, int depth)
static void	postprocess_luma (AVCodecContext *avctx, AVFrame *frame, int w, int h, int depth)
static void	postprocess_chroma (AVFrame *frame, int w, int h, int depth)
static int	decode_plane (AVCodecContext *avctx, int plane, const AVPacket *avpkt, AVFrame *frame)
static int	pixlet_decode_frame (AVCodecContext *avctx, AVFrame *p, int *got_frame, AVPacket *avpkt)

Variables
const FFCodec	ff_pixlet_decoder

Macro Definition Documentation

NB_LEVELS

#define NB_LEVELS   4

Definition at line 35 of file pixlet.c.

Referenced by av_log_default_callback(), init_decoder(), pixlet_decode_frame(), and reconstruction().

PIXLET_MAGIC

#define PIXLET_MAGIC   0xDEADBEEF

Definition at line 37 of file pixlet.c.

Referenced by read_highpass().

H

#define H   0

Definition at line 39 of file pixlet.c.

Referenced by addroi_config_input(), addroi_filter_frame(), check_loopfilter(), check_multiply3x3(), check_rgb2yuv(), check_yuv2rgb(), check_yuv2yuv(), decode_plane(), epx2_slice(), epx3_slice(), filter_channel(), filter_color(), filter_color2(), filter_frame(), filter_mono(), filter_plane_cols(), filter_plane_rows(), for(), for(), frame_header(), idct(), idct10(), idct_msa(), if(), init_demo(), loop_filter(), pred8x16_plane(), pred8x8_plane(), qrencode_config_input(), qrencodesrc_config_props(), and randomize_loopfilter_buffers().

V

#define V   1

Definition at line 40 of file pixlet.c.

Function Documentation

pixlet_init()

static av_cold int pixlet_init ( AVCodecContext * avctx )

static

Definition at line 65 of file pixlet.c.

free_buffers()

static void free_buffers ( AVCodecContext * avctx )

static

Definition at line 72 of file pixlet.c.

Referenced by pixlet_close(), and pixlet_decode_frame().

pixlet_close()

static av_cold int pixlet_close ( AVCodecContext * avctx )

static

Definition at line 81 of file pixlet.c.

init_decoder()

static int init_decoder ( AVCodecContext * avctx )

static

Definition at line 90 of file pixlet.c.

Referenced by pixlet_decode_frame().

read_low_coeffs()

static int read_low_coeffs ( AVCodecContext * avctx, int16_t * dst, int size, int width, ptrdiff_t stride )

static

Definition at line 125 of file pixlet.c.

Referenced by decode_plane().

read_high_coeffs()

static int read_high_coeffs ( AVCodecContext * avctx, const uint8_t * src, int16_t * dst, int size, int c, int a, int d, int width, ptrdiff_t stride )

static

Definition at line 200 of file pixlet.c.

Referenced by read_highpass().

read_highpass()

static int read_highpass ( AVCodecContext * avctx, const uint8_t * ptr, int plane, AVFrame * frame )

static

Definition at line 315 of file pixlet.c.

Referenced by decode_plane().

lowpass_prediction()

static void lowpass_prediction ( int16_t * dst, int16_t * pred, int width, int height, ptrdiff_t stride )

static

Definition at line 358 of file pixlet.c.

Referenced by decode_plane().

filterfn()

static void filterfn ( int16_t * dest, int16_t * tmp, unsigned size, int64_t scale )

static

Definition at line 378 of file pixlet.c.

Referenced by reconstruction().

reconstruction()

static void reconstruction ( AVCodecContext * avctx, int16_t * dest, unsigned width, unsigned height, ptrdiff_t stride, int64_t * scaling_h, int64_t * scaling_v )

static

Definition at line 423 of file pixlet.c.

Referenced by decode_plane().

build_luma_lut()

static void build_luma_lut ( AVCodecContext * avctx, int depth )

static

Definition at line 466 of file pixlet.c.

Referenced by pixlet_decode_frame().

postprocess_luma()

static void postprocess_luma ( AVCodecContext * avctx, AVFrame * frame, int w, int h, int depth )

static

Definition at line 479 of file pixlet.c.

Referenced by pixlet_decode_frame().

postprocess_chroma()

static void postprocess_chroma ( AVFrame * frame, int w, int h, int depth )

static

Definition at line 503 of file pixlet.c.

Referenced by pixlet_decode_frame().

decode_plane()

static int decode_plane ( AVCodecContext * avctx, int plane, const AVPacket * avpkt, AVFrame * frame )

static

Definition at line 527 of file pixlet.c.

Referenced by pixlet_decode_frame().

pixlet_decode_frame()

static int pixlet_decode_frame ( AVCodecContext * avctx, AVFrame * p, int * got_frame, AVPacket * avpkt )

static

Definition at line 603 of file pixlet.c.

Variable Documentation

ff_pixlet_decoder

const FFCodec ff_pixlet_decoder

Initial value:

= {
    .p.name           = "pixlet",
    CODEC_LONG_NAME("Apple Pixlet"),
    .p.type           = AVMEDIA_TYPE_VIDEO,
    .p.id             = AV_CODEC_ID_PIXLET,
    .init             = pixlet_init,
    .close            = pixlet_close,
    FF_CODEC_DECODE_CB(pixlet_decode_frame),
    .priv_data_size   = sizeof(PixletContext),
    .p.capabilities   = AV_CODEC_CAP_DR1 |
                        AV_CODEC_CAP_FRAME_THREADS,
    .caps_internal    = FF_CODEC_CAP_INIT_CLEANUP,
}

Definition at line 692 of file pixlet.c.