FFmpeg
Data Structures | Macros | Functions | Variables
vfwcap.c File Reference
#include "libavutil/internal.h"
#include "libavutil/log.h"
#include "libavutil/opt.h"
#include "libavutil/parseutils.h"
#include "libavcodec/packet_internal.h"
#include "libavformat/demux.h"
#include "libavformat/internal.h"
#include <windows.h>
#include <vfw.h>
#include "avdevice.h"

Go to the source code of this file.

Data Structures

struct  vfw_ctx
 

Macros

#define HWND_MESSAGE   ((HWND) -3)
 
#define dstruct(pctx, sname, var, type)   av_log(pctx, AV_LOG_DEBUG, #var":\t%"type"\n", sname->var)
 
#define OFFSET(x)   offsetof(struct vfw_ctx, x)
 
#define DEC   AV_OPT_FLAG_DECODING_PARAM
 

Functions

static enum AVPixelFormat vfw_pixfmt (DWORD biCompression, WORD biBitCount)
 
static enum AVCodecID vfw_codecid (DWORD biCompression)
 
static void dump_captureparms (AVFormatContext *s, CAPTUREPARMS *cparms)
 
static void dump_videohdr (AVFormatContext *s, VIDEOHDR *vhdr)
 
static void dump_bih (AVFormatContext *s, BITMAPINFOHEADER *bih)
 
static int shall_we_drop (AVFormatContext *s)
 
static LRESULT CALLBACK videostream_cb (HWND hwnd, LPVIDEOHDR vdhdr)
 
static int vfw_read_close (AVFormatContext *s)
 
static int vfw_read_header (AVFormatContext *s)
 
static int vfw_read_packet (AVFormatContext *s, AVPacket *pkt)
 

Variables

static const AVOption options []
 
static const AVClass vfw_class
 
const FFInputFormat ff_vfwcap_demuxer
 

Macro Definition Documentation

◆ HWND_MESSAGE

#define HWND_MESSAGE   ((HWND) -3)

Definition at line 41 of file vfwcap.c.

◆ dstruct

#define dstruct (   pctx,
  sname,
  var,
  type 
)    av_log(pctx, AV_LOG_DEBUG, #var":\t%"type"\n", sname->var)

Definition at line 96 of file vfwcap.c.

◆ OFFSET

#define OFFSET (   x)    offsetof(struct vfw_ctx, x)

Definition at line 470 of file vfwcap.c.

◆ DEC

#define DEC   AV_OPT_FLAG_DECODING_PARAM

Definition at line 471 of file vfwcap.c.

Function Documentation

◆ vfw_pixfmt()

static enum AVPixelFormat vfw_pixfmt ( DWORD  biCompression,
WORD  biBitCount 
)
static

Definition at line 56 of file vfwcap.c.

Referenced by vfw_read_header().

◆ vfw_codecid()

static enum AVCodecID vfw_codecid ( DWORD  biCompression)
static

Definition at line 84 of file vfwcap.c.

Referenced by vfw_read_header().

◆ dump_captureparms()

static void dump_captureparms ( AVFormatContext s,
CAPTUREPARMS *  cparms 
)
static

Definition at line 99 of file vfwcap.c.

Referenced by vfw_read_header().

◆ dump_videohdr()

static void dump_videohdr ( AVFormatContext s,
VIDEOHDR *  vhdr 
)
static

Definition at line 128 of file vfwcap.c.

Referenced by videostream_cb().

◆ dump_bih()

static void dump_bih ( AVFormatContext s,
BITMAPINFOHEADER *  bih 
)
static

Definition at line 145 of file vfwcap.c.

Referenced by ff_print_AM_MEDIA_TYPE(), and vfw_read_header().

◆ shall_we_drop()

static int shall_we_drop ( AVFormatContext s)
static

Definition at line 163 of file vfwcap.c.

Referenced by videostream_cb().

◆ videostream_cb()

static LRESULT CALLBACK videostream_cb ( HWND  hwnd,
LPVIDEOHDR  vdhdr 
)
static

Definition at line 179 of file vfwcap.c.

Referenced by vfw_read_header().

◆ vfw_read_close()

static int vfw_read_close ( AVFormatContext s)
static

Definition at line 221 of file vfwcap.c.

Referenced by vfw_read_header().

◆ vfw_read_header()

static int vfw_read_header ( AVFormatContext s)
static

Definition at line 247 of file vfwcap.c.

◆ vfw_read_packet()

static int vfw_read_packet ( AVFormatContext s,
AVPacket pkt 
)
static

Definition at line 441 of file vfwcap.c.

Variable Documentation

◆ options

const AVOption options[]
static
Initial value:
= {
{ "video_size", "A string describing frame size, such as 640x480 or hd720.", OFFSET(video_size), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, DEC },
{ "framerate", "", OFFSET(framerate), AV_OPT_TYPE_STRING, {.str = "ntsc"}, 0, 0, DEC },
{ NULL },
}

Definition at line 472 of file vfwcap.c.

◆ vfw_class

const AVClass vfw_class
static
Initial value:
= {
.class_name = "VFW indev",
.item_name = av_default_item_name,
.option = options,
}

Definition at line 478 of file vfwcap.c.

◆ ff_vfwcap_demuxer

const FFInputFormat ff_vfwcap_demuxer
Initial value:
= {
.p.name = "vfwcap",
.p.long_name = NULL_IF_CONFIG_SMALL("VfW video capture"),
.p.flags = AVFMT_NOFILE,
.p.priv_class = &vfw_class,
.priv_data_size = sizeof(struct vfw_ctx),
.read_packet = vfw_read_packet,
.read_close = vfw_read_close,
}

Definition at line 486 of file vfwcap.c.

vfw_read_packet
static int vfw_read_packet(AVFormatContext *s, AVPacket *pkt)
Definition: vfwcap.c:441
vfw_read_close
static int vfw_read_close(AVFormatContext *s)
Definition: vfwcap.c:221
framerate
float framerate
Definition: av1_levels.c:29
LIBAVUTIL_VERSION_INT
#define LIBAVUTIL_VERSION_INT
Definition: version.h:85
read_header
static int read_header(FFV1Context *f)
Definition: ffv1dec.c:550
NULL
#define NULL
Definition: coverity.c:32
options
static const AVOption options[]
Definition: vfwcap.c:472
av_default_item_name
const char * av_default_item_name(void *ptr)
Return the context name.
Definition: log.c:237
vfw_read_header
static int vfw_read_header(AVFormatContext *s)
Definition: vfwcap.c:247
AV_CLASS_CATEGORY_DEVICE_VIDEO_INPUT
@ AV_CLASS_CATEGORY_DEVICE_VIDEO_INPUT
Definition: log.h:41
OFFSET
#define OFFSET(x)
Definition: vfwcap.c:470
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:106
AVFMT_NOFILE
#define AVFMT_NOFILE
Demuxer will use avio_open, no opened file should be provided by the caller.
Definition: avformat.h:468
vfw_class
static const AVClass vfw_class
Definition: vfwcap.c:478
vfw_ctx
Definition: vfwcap.c:44
AV_OPT_TYPE_STRING
@ AV_OPT_TYPE_STRING
Definition: opt.h:239
DEC
#define DEC
Definition: vfwcap.c:471