libavcodec/pngenc.c File Reference
#include "avcodec.h"
#include "bytestream.h"
#include "dsputil.h"
#include "png.h"
#include <zlib.h>
Go to the source code of this file.
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Data Structures |
struct | PNGEncContext |
Defines |
#define | IOBUF_SIZE 4096 |
Functions |
static void | png_get_interlaced_row (uint8_t *dst, int row_size, int bits_per_pixel, int pass, const uint8_t *src, int width) |
static void | sub_png_paeth_prediction (uint8_t *dst, uint8_t *src, uint8_t *top, int w, int bpp) |
static void | png_filter_row (DSPContext *dsp, uint8_t *dst, int filter_type, uint8_t *src, uint8_t *top, int size, int bpp) |
static uint8_t * | png_choose_filter (PNGEncContext *s, uint8_t *dst, uint8_t *src, uint8_t *top, int size, int bpp) |
static void | convert_from_rgb32 (uint8_t *dst, const uint8_t *src, int width) |
static void | png_write_chunk (uint8_t **f, uint32_t tag, const uint8_t *buf, int length) |
static int | png_write_row (PNGEncContext *s, const uint8_t *data, int size) |
static int | encode_frame (AVCodecContext *avctx, unsigned char *buf, int buf_size, void *data) |
static av_cold int | png_enc_init (AVCodecContext *avctx) |
Variables |
AVCodec | ff_png_encoder |
Define Documentation
Function Documentation
static void convert_from_rgb32 |
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uint8_t * |
dst, |
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const uint8_t * |
src, |
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int |
width | |
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static int encode_frame |
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AVCodecContext * |
avctx, |
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unsigned char * |
buf, |
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int |
buf_size, |
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void * |
data | |
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) |
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static uint8_t* png_choose_filter |
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PNGEncContext * |
s, |
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uint8_t * |
dst, |
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uint8_t * |
src, |
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uint8_t * |
top, |
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int |
size, |
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int |
bpp | |
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) |
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static void png_filter_row |
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DSPContext * |
dsp, |
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uint8_t * |
dst, |
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int |
filter_type, |
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uint8_t * |
src, |
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uint8_t * |
top, |
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int |
size, |
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int |
bpp | |
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) |
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static void png_get_interlaced_row |
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uint8_t * |
dst, |
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int |
row_size, |
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int |
bits_per_pixel, |
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int |
pass, |
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const uint8_t * |
src, |
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int |
width | |
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) |
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static void png_write_chunk |
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uint8_t ** |
f, |
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uint32_t |
tag, |
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const uint8_t * |
buf, |
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int |
length | |
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) |
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static int png_write_row |
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PNGEncContext * |
s, |
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const uint8_t * |
data, |
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int |
size | |
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) |
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static void sub_png_paeth_prediction |
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uint8_t * |
dst, |
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uint8_t * |
src, |
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uint8_t * |
top, |
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int |
w, |
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int |
bpp | |
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) |
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Variable Documentation
Initial value:
{
.name = "png",
.type = AVMEDIA_TYPE_VIDEO,
.id = CODEC_ID_PNG,
.priv_data_size = sizeof(PNGEncContext),
.init = png_enc_init,
.encode = encode_frame,
.pix_fmts= (const enum PixelFormat[]){PIX_FMT_RGB24, PIX_FMT_RGB32, PIX_FMT_PAL8, PIX_FMT_GRAY8, PIX_FMT_MONOBLACK, PIX_FMT_NONE},
.long_name= NULL_IF_CONFIG_SMALL("PNG image"),
}
Definition at line 439 of file pngenc.c.