FFmpeg
Data Structures | Macros | Functions | Variables
notchlc.c File Reference
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "libavutil/intreadwrite.h"
#include "avcodec.h"
#include "bytestream.h"
#include "get_bits.h"
#include "internal.h"
#include "lzf.h"
#include "thread.h"

Go to the source code of this file.

Data Structures

struct  NotchLCContext
 

Macros

#define BITSTREAM_READER_LE
 
#define HISTORY_SIZE   (64 * 1024)
 

Functions

static av_cold int decode_init (AVCodecContext *avctx)
 
static int lz4_decompress (AVCodecContext *avctx, GetByteContext *gb, PutByteContext *pb)
 
static int decode_blocks (AVCodecContext *avctx, AVFrame *p, ThreadFrame *frame, unsigned uncompressed_size)
 
static int decode_frame (AVCodecContext *avctx, void *data, int *got_frame, AVPacket *avpkt)
 
static av_cold int decode_end (AVCodecContext *avctx)
 

Variables

const AVCodec ff_notchlc_decoder
 

Macro Definition Documentation

◆ BITSTREAM_READER_LE

#define BITSTREAM_READER_LE

Definition at line 26 of file notchlc.c.

◆ HISTORY_SIZE

#define HISTORY_SIZE   (64 * 1024)

Definition at line 74 of file notchlc.c.

Function Documentation

◆ decode_init()

static av_cold int decode_init ( AVCodecContext avctx)
static

Definition at line 63 of file notchlc.c.

◆ lz4_decompress()

static int lz4_decompress ( AVCodecContext avctx,
GetByteContext gb,
PutByteContext pb 
)
static

Definition at line 76 of file notchlc.c.

Referenced by decode_frame().

◆ decode_blocks()

static int decode_blocks ( AVCodecContext avctx,
AVFrame p,
ThreadFrame frame,
unsigned  uncompressed_size 
)
static

Definition at line 149 of file notchlc.c.

Referenced by decode_frame().

◆ decode_frame()

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

Definition at line 462 of file notchlc.c.

◆ decode_end()

static av_cold int decode_end ( AVCodecContext avctx)
static

Definition at line 528 of file notchlc.c.

Variable Documentation

◆ ff_notchlc_decoder

const AVCodec ff_notchlc_decoder
Initial value:
= {
.name = "notchlc",
.long_name = NULL_IF_CONFIG_SMALL("NotchLC"),
.priv_data_size = sizeof(NotchLCContext),
.close = decode_end,
.caps_internal = FF_CODEC_CAP_INIT_THREADSAFE,
}

Definition at line 540 of file notchlc.c.

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: internal.h:42
init
static av_cold int init(AVCodecContext *avctx)
Definition: avrndec.c:31
decode_frame
static int decode_frame(AVCodecContext *avctx, void *data, int *got_frame, AVPacket *avpkt)
Definition: notchlc.c:462
decode_init
static av_cold int decode_init(AVCodecContext *avctx)
Definition: notchlc.c:63
decode
static void decode(AVCodecContext *dec_ctx, AVPacket *pkt, AVFrame *frame, FILE *outfile)
Definition: decode_audio.c:71
AV_CODEC_CAP_FRAME_THREADS
#define AV_CODEC_CAP_FRAME_THREADS
Codec supports frame-level multithreading.
Definition: codec.h:113
NotchLCContext
Definition: notchlc.c:35
AV_CODEC_CAP_DR1
#define AV_CODEC_CAP_DR1
Codec uses get_buffer() or get_encode_buffer() for allocating buffers and supports custom allocators.
Definition: codec.h:52
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_ID_NOTCHLC
@ AV_CODEC_ID_NOTCHLC
Definition: codec_id.h:301
decode_end
static av_cold int decode_end(AVCodecContext *avctx)
Definition: notchlc.c:528
AVMEDIA_TYPE_VIDEO
@ AVMEDIA_TYPE_VIDEO
Definition: avutil.h:201