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img2dec.c File Reference
#include <sys/stat.h>
#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"

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.
 
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 OFFSET (   x)    offsetof(VideoDemuxData, x)

Definition at line 454 of file img2dec.c.

#define DEC   AV_OPT_FLAG_DECODING_PARAM

Definition at line 455 of file img2dec.c.

Function Documentation

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

Definition at line 82 of file img2dec.c.

Referenced by img_read_packet().

static int is_glob ( const char *  path)
static

Definition at line 97 of file img2dec.c.

Referenced by img_read_header(), and img_read_probe().

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_indexpointer to index updated with the first number in the range
plast_indexpointer to index updated with the last number in the range
pathpath which has to be matched by the image files in the range
start_indexminimum accepted value for the first index in the range
Returns
-1 if no image file could be found

Definition at line 127 of file img2dec.c.

Referenced by img_read_header().

static int img_read_probe ( AVProbeData p)
static

Definition at line 180 of file img2dec.c.

static int img_read_header ( AVFormatContext s1)
static

Definition at line 195 of file img2dec.c.

static int img_read_packet ( AVFormatContext s1,
AVPacket pkt 
)
static

Definition at line 331 of file img2dec.c.

static int img_read_close ( struct AVFormatContext s1)
static

Definition at line 423 of file img2dec.c.

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

Definition at line 434 of file img2dec.c.

Variable Documentation

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 70 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().

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 },
{ "ts_from_file", "set frame timestamp from file's one", OFFSET(ts_from_file), AV_OPT_TYPE_INT, {.i64 = 0 }, 0, 1, DEC },
{ NULL },
}

Definition at line 456 of file img2dec.c.