img2dec.c File Reference

#include "config_components.h"
#include <sys/stat.h>
#include "libavutil/avstring.h"
#include "libavutil/log.h"
#include "libavutil/mem.h"
#include "libavutil/opt.h"
#include "libavutil/pixdesc.h"
#include "libavutil/intreadwrite.h"
#include "libavcodec/gif.h"
#include "avformat.h"
#include "avio_internal.h"
#include "demux.h"
#include "internal.h"
#include "img2.h"
#include "os_support.h"
#include "libavcodec/jpegxl_parse.h"
#include "libavcodec/mjpeg.h"
#include "libavcodec/vbn.h"
#include "libavcodec/xwd.h"
#include "subtitles.h"

Go to the source code of this file.

Macros
#define	_DEFAULT_SOURCE
#define	_BSD_SOURCE
#define	OFFSET(x)   offsetof(VideoDemuxData, x)
#define	DEC   AV_OPT_FLAG_DECODING_PARAM
#define	COMMON_OPTIONS
#define	IMAGEAUTO_DEMUXER_0(imgname, codecid)
#define	IMAGEAUTO_DEMUXER_1(imgname, codecid)
#define	IMAGEAUTO_DEMUXER_2(imgname, codecid, enabled)   IMAGEAUTO_DEMUXER_ ## enabled(imgname, codecid)
#define	IMAGEAUTO_DEMUXER_3(imgname, codecid, config)   IMAGEAUTO_DEMUXER_2(imgname, codecid, config)
#define	IMAGEAUTO_DEMUXER_EXT(imgname, codecid, uppercase_name)
#define	IMAGEAUTO_DEMUXER(imgname, codecid)   IMAGEAUTO_DEMUXER_EXT(imgname, codecid, codecid)

Functions
static int	infer_size (int *width_ptr, int *height_ptr, int size)
static int	is_glob (const char *path)
static int	find_image_range (AVIOContext *pb, int *pfirst_index, int *plast_index, const char *path, int start_index, int start_index_range)
	Get index range of image files matched by path. More...
static int	img_read_probe (const AVProbeData *p)
int	ff_img_read_header (AVFormatContext *s1)
static int	add_filename_as_pkt_side_data (char *filename, AVPacket *pkt)
	Add this frame's source path and basename to packet's sidedata as a dictionary, so it can be used by filters like 'drawtext'. More...
int	ff_img_read_packet (AVFormatContext *s1, AVPacket *pkt)
static int	img_read_close (struct AVFormatContext *s1)
static int	img_read_seek (AVFormatContext *s, int stream_index, int64_t timestamp, int flags)
static int	bmp_probe (const AVProbeData *p)
static int	cri_probe (const AVProbeData *p)
static int	dds_probe (const AVProbeData *p)
static int	dpx_probe (const AVProbeData *p)
static int	exr_probe (const AVProbeData *p)
static int	j2k_probe (const AVProbeData *p)
static int	jpeg_probe (const AVProbeData *p)
static int	jpegls_probe (const AVProbeData *p)
static int	jpegxl_probe (const AVProbeData *p)
static int	pcx_probe (const AVProbeData *p)
static int	qdraw_probe (const AVProbeData *p)
static int	pictor_probe (const AVProbeData *p)
static int	png_probe (const AVProbeData *p)
static int	psd_probe (const AVProbeData *p)
static int	sgi_probe (const AVProbeData *p)
static int	sunrast_probe (const AVProbeData *p)
static int	svg_probe (const AVProbeData *p)
static int	tiff_probe (const AVProbeData *p)
static int	webp_probe (const AVProbeData *p)
static int	pnm_magic_check (const AVProbeData *p, int magic)
static int	pnm_probe (const AVProbeData *p)
static int	pbm_probe (const AVProbeData *p)
static int	pfm_probe (const AVProbeData *p)
static int	phm_probe (const AVProbeData *p)
static int	pgmx_probe (const AVProbeData *p)
static int	pgm_probe (const AVProbeData *p)
static int	pgmyuv_probe (const AVProbeData *p)
static int	pgx_probe (const AVProbeData *p)
static int	ppm_probe (const AVProbeData *p)
static int	pam_probe (const AVProbeData *p)
static int	hdr_probe (const AVProbeData *p)
static int	xbm_probe (const AVProbeData *p)
static int	xpm_probe (const AVProbeData *p)
static int	xwd_probe (const AVProbeData *p)
static int	gif_probe (const AVProbeData *p)
static int	photocd_probe (const AVProbeData *p)
static int	qoi_probe (const AVProbeData *p)
static int	gem_probe (const AVProbeData *p)
static int	vbn_probe (const AVProbeData *p)

Variables
static const int	sizes [][2]
static const AVOption	img2pipe_options []
static const AVClass	imagepipe_class

Macro Definition Documentation

_DEFAULT_SOURCE

#define _DEFAULT_SOURCE

Definition at line 25 of file img2dec.c.

_BSD_SOURCE

#define _BSD_SOURCE

Definition at line 26 of file img2dec.c.

OFFSET

#define OFFSET

(

x

)

offsetof(VideoDemuxData, x)

Definition at line 611 of file img2dec.c.

DEC

#define DEC   AV_OPT_FLAG_DECODING_PARAM

Definition at line 612 of file img2dec.c.

COMMON_OPTIONS

#define COMMON_OPTIONS

Value:

    { "framerate",    "set the video framerate", OFFSET(framerate),    AV_OPT_TYPE_VIDEO_RATE, {.str = "25"}, 0, INT_MAX, DEC }, \
    { "pixel_format", "set video pixel format",  OFFSET(pixel_format), AV_OPT_TYPE_STRING,     {.str = NULL}, 0, 0,       DEC }, \
    { "video_size",   "set video size",          OFFSET(width),        AV_OPT_TYPE_IMAGE_SIZE, {.str = NULL}, 0, 0,       DEC }, \
    { "loop",         "force loop over input file sequence", OFFSET(loop), AV_OPT_TYPE_BOOL,   {.i64 = 0   }, 0, 1,       DEC }, \
    { NULL },

Definition at line 613 of file img2dec.c.

IMAGEAUTO_DEMUXER_0

#define IMAGEAUTO_DEMUXER_0	(		imgname,
			codecid
	)

Definition at line 1208 of file img2dec.c.

IMAGEAUTO_DEMUXER_1

#define IMAGEAUTO_DEMUXER_1	(		imgname,
			codecid
	)

Value:

const FFInputFormat ff_image_ ## imgname ## _pipe_demuxer = {\
    .p.name         = AV_STRINGIFY(imgname) "_pipe",\
    .p.long_name    = NULL_IF_CONFIG_SMALL("piped " AV_STRINGIFY(imgname) " sequence"),\
    .p.priv_class   = &imagepipe_class,\
    .p.flags        = AVFMT_GENERIC_INDEX,\
    .priv_data_size = sizeof(VideoDemuxData),\
    .read_probe     = imgname ## _probe,\
    .read_header    = ff_img_read_header,\
    .read_packet    = ff_img_read_packet,\
    .raw_codec_id   = codecid,\
};

Definition at line 1209 of file img2dec.c.

IMAGEAUTO_DEMUXER_2

#define IMAGEAUTO_DEMUXER_2	(		imgname,
			codecid,
			enabled
	)		IMAGEAUTO_DEMUXER_ ## enabled(imgname, codecid)

Definition at line 1222 of file img2dec.c.

IMAGEAUTO_DEMUXER_3

#define IMAGEAUTO_DEMUXER_3	(		imgname,
			codecid,
			config
	)		IMAGEAUTO_DEMUXER_2(imgname, codecid, config)

Definition at line 1224 of file img2dec.c.

IMAGEAUTO_DEMUXER_EXT

#define IMAGEAUTO_DEMUXER_EXT	(		imgname,
			codecid,
			uppercase_name
	)

Value:

        IMAGEAUTO_DEMUXER_3(imgname, AV_CODEC_ID_ ## codecid,   \
                            CONFIG_IMAGE_ ## uppercase_name ## _PIPE_DEMUXER)

Definition at line 1226 of file img2dec.c.

IMAGEAUTO_DEMUXER

#define IMAGEAUTO_DEMUXER	(		imgname,
			codecid
	)		IMAGEAUTO_DEMUXER_EXT(imgname, codecid, codecid)

Definition at line 1229 of file img2dec.c.

Function Documentation

infer_size()

static int infer_size ( int *  width_ptr, int *  height_ptr, int  size  )

static

Definition at line 71 of file img2dec.c.

Referenced by ff_img_read_packet().

is_glob()

static int is_glob ( const char *  path )

static

Definition at line 86 of file img2dec.c.

Referenced by ff_img_read_header(), and img_read_probe().

find_image_range()

static int find_image_range ( AVIOContext *  pb, int *  pfirst_index, int *  plast_index, const char *  path, int  start_index, int  start_index_range  )

static

Get index range of image files matched by path.

Parameters

pfirst_index	pointer to index updated with the first number in the range
plast_index	pointer to index updated with the last number in the range
path	path which has to be matched by the image files in the range
start_index	minimum accepted value for the first index in the range

Returns

-1 if no image file could be found

Definition at line 116 of file img2dec.c.

Referenced by ff_img_read_header().

img_read_probe()

static int img_read_probe ( const AVProbeData *  p )

static

Definition at line 169 of file img2dec.c.

ff_img_read_header()

int ff_img_read_header

(

AVFormatContext *

s1

)

Definition at line 188 of file img2dec.c.

add_filename_as_pkt_side_data()

static int add_filename_as_pkt_side_data ( char *  filename, AVPacket *  pkt  )

static

Add this frame's source path and basename to packet's sidedata as a dictionary, so it can be used by filters like 'drawtext'.

Definition at line 390 of file img2dec.c.

Referenced by ff_img_read_packet().

ff_img_read_packet()

int ff_img_read_packet	(	AVFormatContext *	s1,
		AVPacket *	pkt
	)

Definition at line 412 of file img2dec.c.

img_read_close()

static int img_read_close ( struct AVFormatContext *  s1 )

static

Definition at line 580 of file img2dec.c.

img_read_seek()

static int img_read_seek ( AVFormatContext *  s, int  stream_index, int64_t  timestamp, int  flags  )

static

Definition at line 591 of file img2dec.c.

bmp_probe()

static int bmp_probe ( const AVProbeData *  p )

static

Definition at line 679 of file img2dec.c.

cri_probe()

static int cri_probe ( const AVProbeData *  p )

static

Definition at line 697 of file img2dec.c.

dds_probe()

static int dds_probe ( const AVProbeData *  p )

static

Definition at line 708 of file img2dec.c.

dpx_probe()

static int dpx_probe ( const AVProbeData *  p )

static

Definition at line 719 of file img2dec.c.

exr_probe()

static int exr_probe ( const AVProbeData *  p )

static

Definition at line 737 of file img2dec.c.

j2k_probe()

static int j2k_probe ( const AVProbeData *  p )

static

Definition at line 746 of file img2dec.c.

jpeg_probe()

static int jpeg_probe ( const AVProbeData *  p )

static

Definition at line 756 of file img2dec.c.

jpegls_probe()

static int jpegls_probe ( const AVProbeData *  p )

static

Definition at line 835 of file img2dec.c.

jpegxl_probe()

static int jpegxl_probe ( const AVProbeData *  p )

static

Definition at line 844 of file img2dec.c.

pcx_probe()

static int pcx_probe ( const AVProbeData *  p )

static

Definition at line 862 of file img2dec.c.

qdraw_probe()

static int qdraw_probe ( const AVProbeData *  p )

static

Definition at line 883 of file img2dec.c.

pictor_probe()

static int pictor_probe ( const AVProbeData *  p )

static

Definition at line 899 of file img2dec.c.

png_probe()

static int png_probe ( const AVProbeData *  p )

static

Definition at line 908 of file img2dec.c.

psd_probe()

static int psd_probe ( const AVProbeData *  p )

static

Definition at line 917 of file img2dec.c.

sgi_probe()

static int sgi_probe ( const AVProbeData *  p )

static

Definition at line 945 of file img2dec.c.

sunrast_probe()

static int sunrast_probe ( const AVProbeData *  p )

static

Definition at line 957 of file img2dec.c.

svg_probe()

static int svg_probe ( const AVProbeData *  p )

static

Definition at line 966 of file img2dec.c.

tiff_probe()

static int tiff_probe ( const AVProbeData *  p )

static

Definition at line 991 of file img2dec.c.

webp_probe()

static int webp_probe ( const AVProbeData *  p )

static

Definition at line 1001 of file img2dec.c.

pnm_magic_check()

static int pnm_magic_check ( const AVProbeData *  p, int  magic  )

static

Definition at line 1011 of file img2dec.c.

Referenced by pam_probe(), pbm_probe(), pfm_probe(), pgmx_probe(), phm_probe(), and ppm_probe().

pnm_probe()

static int pnm_probe ( const AVProbeData *  p )

inlinestatic

Definition at line 1018 of file img2dec.c.

Referenced by pam_probe(), pbm_probe(), pfm_probe(), pgmx_probe(), phm_probe(), and ppm_probe().

pbm_probe()

static int pbm_probe ( const AVProbeData *  p )

static

Definition at line 1029 of file img2dec.c.

pfm_probe()

static int pfm_probe ( const AVProbeData *  p )

static

Definition at line 1034 of file img2dec.c.

phm_probe()

static int phm_probe ( const AVProbeData *  p )

static

Definition at line 1040 of file img2dec.c.

pgmx_probe()

static int pgmx_probe ( const AVProbeData *  p )

inlinestatic

Definition at line 1046 of file img2dec.c.

Referenced by pgm_probe(), and pgmyuv_probe().

pgm_probe()

static int pgm_probe ( const AVProbeData *  p )

static

Definition at line 1051 of file img2dec.c.

pgmyuv_probe()

static int pgmyuv_probe ( const AVProbeData *  p )

static

Definition at line 1057 of file img2dec.c.

pgx_probe()

static int pgx_probe ( const AVProbeData *  p )

static

Definition at line 1063 of file img2dec.c.

ppm_probe()

static int ppm_probe ( const AVProbeData *  p )

static

Definition at line 1071 of file img2dec.c.

pam_probe()

static int pam_probe ( const AVProbeData *  p )

static

Definition at line 1076 of file img2dec.c.

hdr_probe()

static int hdr_probe ( const AVProbeData *  p )

static

Definition at line 1081 of file img2dec.c.

xbm_probe()

static int xbm_probe ( const AVProbeData *  p )

static

Definition at line 1088 of file img2dec.c.

xpm_probe()

static int xpm_probe ( const AVProbeData *  p )

static

Definition at line 1098 of file img2dec.c.

xwd_probe()

static int xwd_probe ( const AVProbeData *  p )

static

Definition at line 1107 of file img2dec.c.

gif_probe()

static int gif_probe ( const AVProbeData *  p )

static

Definition at line 1137 of file img2dec.c.

photocd_probe()

static int photocd_probe ( const AVProbeData *  p )

static

Definition at line 1150 of file img2dec.c.

qoi_probe()

static int qoi_probe ( const AVProbeData *  p )

static

Definition at line 1161 of file img2dec.c.

gem_probe()

static int gem_probe ( const AVProbeData *  p )

static

Definition at line 1178 of file img2dec.c.

vbn_probe()

static int vbn_probe ( const AVProbeData *  p )

static

Definition at line 1198 of file img2dec.c.

Variable Documentation

sizes

const int sizes[][2]

static

Initial value:

= {
    { 640, 480 },
    { 720, 480 },
    { 720, 576 },
    { 352, 288 },
    { 352, 240 },
    { 160, 128 },
    { 512, 384 },
    { 640, 352 },
    { 640, 240 },
}

Definition at line 59 of file img2dec.c.

Referenced by aac_encode_init(), av_image_alloc(), av_image_fill_plane_sizes(), av_image_fill_pointers(), av_image_get_buffer_size(), check_image_fill(), dequant_lsps(), encode_frame(), encode_slice(), ff_frame_pool_video_init(), get_video_buffer(), infer_completion_callback(), infer_size(), ra144_decode_frame(), ra144_encode_frame(), read_in_data(), setup_partitions(), and sga_decode_frame().

img2pipe_options

const AVOption img2pipe_options[]

static

Initial value:

= {
    { "frame_size", "force frame size in bytes", OFFSET(frame_size), AV_OPT_TYPE_INT, {.i64 = 0 }, 0, INT_MAX, DEC },
    COMMON_OPTIONS
}

Definition at line 657 of file img2dec.c.

imagepipe_class

const AVClass imagepipe_class

static

Initial value:

= {
    .class_name = "imagepipe demuxer",
    .item_name  = av_default_item_name,
    .option     = img2pipe_options,
    .version    = LIBAVUTIL_VERSION_INT,
}

Definition at line 661 of file img2dec.c.