FFmpeg
Macros | Enumerations | Functions | Variables
hapenc.c File Reference
#include <stdint.h>
#include "snappy-c.h"
#include "libavutil/frame.h"
#include "libavutil/imgutils.h"
#include "libavutil/intreadwrite.h"
#include "libavutil/opt.h"
#include "avcodec.h"
#include "bytestream.h"
#include "codec_internal.h"
#include "encode.h"
#include "hap.h"
#include "texturedsp.h"

Go to the source code of this file.

Macros

#define HAP_MAX_CHUNKS   64
 
#define OFFSET(x)   offsetof(HapContext, x)
 
#define FLAGS   AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM
 

Enumerations

enum  HapHeaderLength { HAP_HDR_SHORT = 4, HAP_HDR_LONG = 8 }
 

Functions

static int compress_texture (AVCodecContext *avctx, uint8_t *out, int out_length, const AVFrame *f)
 
static void hap_write_section_header (PutByteContext *pbc, enum HapHeaderLength header_length, int section_length, enum HapSectionType section_type)
 
static int hap_compress_frame (AVCodecContext *avctx, uint8_t *dst)
 
static int hap_decode_instructions_length (HapContext *ctx)
 
static int hap_header_length (HapContext *ctx)
 
static void hap_write_frame_header (HapContext *ctx, uint8_t *dst, int frame_length)
 
static int hap_encode (AVCodecContext *avctx, AVPacket *pkt, const AVFrame *frame, int *got_packet)
 
static av_cold int hap_init (AVCodecContext *avctx)
 
static av_cold int hap_close (AVCodecContext *avctx)
 

Variables

static const AVOption options []
 
static const AVClass hapenc_class
 
const FFCodec ff_hap_encoder
 

Detailed Description

Hap encoder

Fourcc: Hap1, Hap5, HapY

https://github.com/Vidvox/hap/blob/master/documentation/HapVideoDRAFT.md

Definition in file hapenc.c.

Macro Definition Documentation

◆ HAP_MAX_CHUNKS

#define HAP_MAX_CHUNKS   64

Definition at line 47 of file hapenc.c.

◆ OFFSET

#define OFFSET (   x)    offsetof(HapContext, x)

Definition at line 328 of file hapenc.c.

◆ FLAGS

Definition at line 329 of file hapenc.c.

Enumeration Type Documentation

◆ HapHeaderLength

Enumerator
HAP_HDR_SHORT 
HAP_HDR_LONG 

Definition at line 49 of file hapenc.c.

Function Documentation

◆ compress_texture()

static int compress_texture ( AVCodecContext avctx,
uint8_t *  out,
int  out_length,
const AVFrame f 
)
static

Definition at line 56 of file hapenc.c.

Referenced by hap_encode().

◆ hap_write_section_header()

static void hap_write_section_header ( PutByteContext pbc,
enum HapHeaderLength  header_length,
int  section_length,
enum HapSectionType  section_type 
)
static

Definition at line 72 of file hapenc.c.

Referenced by hap_write_frame_header().

◆ hap_compress_frame()

static int hap_compress_frame ( AVCodecContext avctx,
uint8_t *  dst 
)
static

Definition at line 89 of file hapenc.c.

Referenced by hap_encode().

◆ hap_decode_instructions_length()

static int hap_decode_instructions_length ( HapContext ctx)
static

Definition at line 137 of file hapenc.c.

Referenced by hap_header_length(), and hap_write_frame_header().

◆ hap_header_length()

static int hap_header_length ( HapContext ctx)
static

Definition at line 146 of file hapenc.c.

Referenced by hap_encode().

◆ hap_write_frame_header()

static void hap_write_frame_header ( HapContext ctx,
uint8_t *  dst,
int  frame_length 
)
static

Definition at line 159 of file hapenc.c.

Referenced by hap_encode().

◆ hap_encode()

static int hap_encode ( AVCodecContext avctx,
AVPacket pkt,
const AVFrame frame,
int got_packet 
)
static

Definition at line 191 of file hapenc.c.

◆ hap_init()

static av_cold int hap_init ( AVCodecContext avctx)
static

Definition at line 232 of file hapenc.c.

◆ hap_close()

static av_cold int hap_close ( AVCodecContext avctx)
static

Definition at line 319 of file hapenc.c.

Variable Documentation

◆ options

const AVOption options[]
static
Initial value:
= {
{ "format", NULL, OFFSET(opt_tex_fmt), AV_OPT_TYPE_INT, { .i64 = HAP_FMT_RGBDXT1 }, HAP_FMT_RGBDXT1, HAP_FMT_YCOCGDXT5, FLAGS, "format" },
{ "hap", "Hap 1 (DXT1 textures)", 0, AV_OPT_TYPE_CONST, { .i64 = HAP_FMT_RGBDXT1 }, 0, 0, FLAGS, "format" },
{ "hap_alpha", "Hap Alpha (DXT5 textures)", 0, AV_OPT_TYPE_CONST, { .i64 = HAP_FMT_RGBADXT5 }, 0, 0, FLAGS, "format" },
{ "hap_q", "Hap Q (DXT5-YCoCg textures)", 0, AV_OPT_TYPE_CONST, { .i64 = HAP_FMT_YCOCGDXT5 }, 0, 0, FLAGS, "format" },
{ "chunks", "chunk count", OFFSET(opt_chunk_count), AV_OPT_TYPE_INT, {.i64 = 1 }, 1, HAP_MAX_CHUNKS, FLAGS, },
{ "compressor", "second-stage compressor", OFFSET(opt_compressor), AV_OPT_TYPE_INT, { .i64 = HAP_COMP_SNAPPY }, HAP_COMP_NONE, HAP_COMP_SNAPPY, FLAGS, "compressor" },
{ "none", "None", 0, AV_OPT_TYPE_CONST, { .i64 = HAP_COMP_NONE }, 0, 0, FLAGS, "compressor" },
{ "snappy", "Snappy", 0, AV_OPT_TYPE_CONST, { .i64 = HAP_COMP_SNAPPY }, 0, 0, FLAGS, "compressor" },
{ NULL },
}

Definition at line 330 of file hapenc.c.

◆ hapenc_class

const AVClass hapenc_class
static
Initial value:
= {
.class_name = "Hap encoder",
.item_name = av_default_item_name,
.option = options,
}

Definition at line 342 of file hapenc.c.

◆ ff_hap_encoder

const FFCodec ff_hap_encoder
Initial value:
= {
.p.name = "hap",
.p.long_name = NULL_IF_CONFIG_SMALL("Vidvox Hap"),
.p.type = AVMEDIA_TYPE_VIDEO,
.p.id = AV_CODEC_ID_HAP,
.priv_data_size = sizeof(HapContext),
.p.priv_class = &hapenc_class,
.p.capabilities = AV_CODEC_CAP_SLICE_THREADS,
.init = hap_init,
.close = hap_close,
.p.pix_fmts = (const enum AVPixelFormat[]) {
},
.caps_internal = FF_CODEC_CAP_INIT_THREADSAFE |
}

Definition at line 349 of file hapenc.c.

AVPixelFormat
AVPixelFormat
Pixel format.
Definition: pixfmt.h:64
HAP_FMT_YCOCGDXT5
@ HAP_FMT_YCOCGDXT5
Definition: hap.h:36
FF_CODEC_CAP_INIT_CLEANUP
#define FF_CODEC_CAP_INIT_CLEANUP
The codec allows calling the close function for deallocation even if the init function returned a fai...
Definition: codec_internal.h:39
OFFSET
#define OFFSET(x)
Definition: hapenc.c:328
HapContext
Definition: hap.h:61
hapenc_class
static const AVClass hapenc_class
Definition: hapenc.c:342
hap_init
static av_cold int hap_init(AVCodecContext *avctx)
Definition: hapenc.c:232
hap_close
static av_cold int hap_close(AVCodecContext *avctx)
Definition: hapenc.c:319
FF_CODEC_ENCODE_CB
#define FF_CODEC_ENCODE_CB(func)
Definition: codec_internal.h:263
HAP_FMT_RGBADXT5
@ HAP_FMT_RGBADXT5
Definition: hap.h:35
HAP_COMP_SNAPPY
@ HAP_COMP_SNAPPY
Definition: hap.h:42
HAP_COMP_NONE
@ HAP_COMP_NONE
Definition: hap.h:41
AV_PIX_FMT_RGBA
@ AV_PIX_FMT_RGBA
packed RGBA 8:8:8:8, 32bpp, RGBARGBA...
Definition: pixfmt.h:93
LIBAVUTIL_VERSION_INT
#define LIBAVUTIL_VERSION_INT
Definition: version.h:85
NULL
#define NULL
Definition: coverity.c:32
av_default_item_name
const char * av_default_item_name(void *ptr)
Return the context name.
Definition: log.c:237
options
static const AVOption options[]
Definition: hapenc.c:330
NULL_IF_CONFIG_SMALL
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification.
Definition: internal.h:117
AV_CODEC_CAP_SLICE_THREADS
#define AV_CODEC_CAP_SLICE_THREADS
Codec supports slice-based (or partition-based) multithreading.
Definition: codec.h:117
FLAGS
#define FLAGS
Definition: hapenc.c:329
FF_CODEC_CAP_INIT_THREADSAFE
#define FF_CODEC_CAP_INIT_THREADSAFE
The codec does not modify any global variables in the init function, allowing to call the init functi...
Definition: codec_internal.h:31
hap_encode
static int hap_encode(AVCodecContext *avctx, AVPacket *pkt, const AVFrame *frame, int *got_packet)
Definition: hapenc.c:191
HAP_MAX_CHUNKS
#define HAP_MAX_CHUNKS
Definition: hapenc.c:47
AV_CODEC_ID_HAP
@ AV_CODEC_ID_HAP
Definition: codec_id.h:239
HAP_FMT_RGBDXT1
@ HAP_FMT_RGBDXT1
Definition: hap.h:34
AV_PIX_FMT_NONE
@ AV_PIX_FMT_NONE
Definition: pixfmt.h:65
AV_OPT_TYPE_INT
@ AV_OPT_TYPE_INT
Definition: opt.h:225
AVMEDIA_TYPE_VIDEO
@ AVMEDIA_TYPE_VIDEO
Definition: avutil.h:201
AV_OPT_TYPE_CONST
@ AV_OPT_TYPE_CONST
Definition: opt.h:234