vfwcap.c File Reference
#include "libavformat/avformat.h"
#include "libavformat/internal.h"
#include "libavutil/log.h"
#include "libavutil/opt.h"
#include "libavutil/parseutils.h"
#include <windows.h>
#include <vfw.h>

Go to the source code of this file.

Data Structures

struct  vfw_ctx

Macros

#define HWND_MESSAGE   ((HWND)-3)
#define BI_RGB   0
#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 PixelFormat vfw_pixfmt (DWORD biCompression, WORD biBitCount)
static enum CodecID 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, AVFormatParameters *ap)
static int vfw_read_packet (AVFormatContext *s, AVPacket *pkt)

Variables

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

Macro Definition Documentation

#define BI_RGB   0

Definition at line 34 of file vfwcap.c.

Referenced by vfw_pixfmt(), and vfw_read_header().

#define DEC   AV_OPT_FLAG_DECODING_PARAM

Definition at line 459 of file vfwcap.c.

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

Definition at line 90 of file vfwcap.c.

Referenced by dump_bih(), dump_captureparms(), and dump_videohdr().

#define HWND_MESSAGE   ((HWND)-3)

Definition at line 32 of file vfwcap.c.

Referenced by vfw_read_header().

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

Definition at line 458 of file vfwcap.c.

Function Documentation

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

Definition at line 139 of file vfwcap.c.

Referenced by vfw_read_header().

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

Definition at line 93 of file vfwcap.c.

Referenced by vfw_read_header().

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

Definition at line 122 of file vfwcap.c.

Referenced by videostream_cb().

static int shall_we_drop ( AVFormatContext s)
static

Definition at line 157 of file vfwcap.c.

Referenced by videostream_cb().

static enum CodecID vfw_codecid ( DWORD  biCompression)
static

Definition at line 78 of file vfwcap.c.

Referenced by vfw_read_header().

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

Definition at line 50 of file vfwcap.c.

Referenced by vfw_read_header().

static int vfw_read_close ( AVFormatContext s)
static

Definition at line 215 of file vfwcap.c.

Referenced by vfw_read_header().

static int vfw_read_header ( AVFormatContext s,
AVFormatParameters ap 
)
static

Definition at line 241 of file vfwcap.c.

static int vfw_read_packet ( AVFormatContext s,
AVPacket pkt 
)
static

Definition at line 429 of file vfwcap.c.

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

Definition at line 173 of file vfwcap.c.

Referenced by vfw_read_header().

Variable Documentation

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

Definition at line 473 of file vfwcap.c.

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 460 of file vfwcap.c.

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

Definition at line 466 of file vfwcap.c.