img2dec.c File Reference

#include "libavutil/avstring.h"
#include "libavutil/log.h"
#include "libavutil/opt.h"
#include "libavutil/pixdesc.h"
#include "libavutil/parseutils.h"
#include "avformat.h"
#include "internal.h"

Include dependency graph for img2dec.c:

Go to the source code of this file.

Data Structures
struct	VideoDemuxData

Macros
#define	OFFSET(x)   offsetof(VideoDemuxData, x)
#define	DEC   AV_OPT_FLAG_DECODING_PARAM

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 (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 (AVProbeData *p)
static int	img_read_header (AVFormatContext *s1)
static int	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)

Variables
static const int	sizes [][2]
static const AVOption	options []

Macro Definition Documentation

#define DEC   AV_OPT_FLAG_DECODING_PARAM

Definition at line 432 of file img2dec.c.

#define OFFSET

(

x

)

offsetof(VideoDemuxData, x)

Definition at line 431 of file img2dec.c.

Function Documentation

static int find_image_range ( 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 125 of file img2dec.c.

Referenced by img_read_header().

static int img_read_close ( struct AVFormatContext *  s1 )

static

Definition at line 409 of file img2dec.c.

static int img_read_header ( AVFormatContext *  s1 )

static

Definition at line 193 of file img2dec.c.

static int img_read_packet ( AVFormatContext *  s1, AVPacket *  pkt  )

static

Definition at line 324 of file img2dec.c.

static int img_read_probe ( AVProbeData *  p )

static

Definition at line 178 of file img2dec.c.

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

static

Definition at line 420 of file img2dec.c.

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

static

Definition at line 80 of file img2dec.c.

Referenced by img_read_packet().

static int is_glob ( const char *  path )

static

Definition at line 95 of file img2dec.c.

Referenced by img_read_header(), and img_read_probe().

Variable Documentation

const AVOption options[]

static

Initial value:

= {
    { "framerate",    "set the video framerate",             OFFSET(framerate),    AV_OPT_TYPE_VIDEO_RATE, {.str = "25"}, 0, 0,   DEC },
    { "loop",         "force loop over input file sequence", OFFSET(loop),         AV_OPT_TYPE_INT,    {.i64 = 0   }, 0, 1,       DEC },

    { "pattern_type", "set pattern type",                    OFFSET(pattern_type), AV_OPT_TYPE_INT,    {.i64=PT_GLOB_SEQUENCE}, 0,       INT_MAX, DEC, "pattern_type"},
    { "glob_sequence","select glob/sequence pattern type",   0, AV_OPT_TYPE_CONST,  {.i64=PT_GLOB_SEQUENCE}, INT_MIN, INT_MAX, DEC, "pattern_type" },
    { "glob",         "select glob pattern type",            0, AV_OPT_TYPE_CONST,  {.i64=PT_GLOB         }, INT_MIN, INT_MAX, DEC, "pattern_type" },
    { "sequence",     "select sequence pattern type",        0, AV_OPT_TYPE_CONST,  {.i64=PT_SEQUENCE     }, INT_MIN, INT_MAX, DEC, "pattern_type" },

    { "pixel_format", "set video pixel format",              OFFSET(pixel_format), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0,       DEC },
    { "start_number", "set first number in the sequence",    OFFSET(start_number), AV_OPT_TYPE_INT,    {.i64 = 0   }, 0, INT_MAX, DEC },
    { "start_number_range", "set range for looking at the first sequence number", OFFSET(start_number_range), AV_OPT_TYPE_INT, {.i64 = 5}, 1, INT_MAX, DEC },
    { "video_size",   "set video size",                      OFFSET(width),        AV_OPT_TYPE_IMAGE_SIZE, {.str = NULL}, 0, 0,   DEC },
    { "frame_size",   "force frame size in bytes",           OFFSET(frame_size),   AV_OPT_TYPE_INT,    {.i64 = 0   }, 0, INT_MAX, DEC },
    { NULL },
}

Definition at line 433 of file img2dec.c.

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 68 of file img2dec.c.

Referenced by aac_encode_init(), encode_frame(), infer_size(), ra144_decode_frame(), ra144_encode_frame(), setup_partitions(), svq1_decode_init(), and x8_vlc_init().