avin_web.c File Reference

#include <gpac/internal/media_dev.h>
#include <gpac/constants.h>
#include <gpac/network.h>

Include dependency graph for avin_web.c:

Data Structures
struct	GF_WebGrab

Macros
#define	OFFS(_n)   #_n, offsetof(GF_WebGrab, _n)

Functions
static GF_Err	webgrab_process_dummy (GF_Filter *filter)
const GF_FilterRegister *	webgrab_register (GF_FilterSession *session)

Variables
static GF_FilterCapability	WebGrabCaps []
static const GF_FilterArgs	WebGrabArgs []
GF_FilterRegister	GF_WebGrabRegister

---

Data Structure Documentation

GF_WebGrab

struct GF_WebGrab

Collaboration diagram for GF_WebGrab:

Data Fields
char *	src
GF_PropVec2i	vsize
Bool	back
Bool	ntp
Bool	alpha
GF_Fraction	fps
GF_Err	init_err
Bool	a_playing
Bool	v_playing
GF_Filter *	filter
GF_FilterPid *	vpid
GF_FilterPid *	apid
u32	w
u32	h
u32	pfmt
u32	out_size
u32	samplerate
u32	channels
u32	afmt
GF_FilterPacket *	pck_v
Bool	init_play_done
Bool	is_canvas
u32	bytes_per_sample
u64	canvas_last_ts
u64	canvas_init_ts
u32	nb_frames
u64	next_time
GF_List *	video_pcks
GF_List *	audio_pcks

Macro Definition Documentation

OFFS

#define OFFS

(

_n

)

#_n, offsetof(GF_WebGrab, _n)

Function Documentation

webgrab_process_dummy()

static GF_Err webgrab_process_dummy ( GF_Filter *  filter )

static

webgrab_register()

const GF_FilterRegister* webgrab_register

(

GF_FilterSession *

session

)

Here is the call graph for this function:

Variable Documentation

WebGrabCaps

GF_FilterCapability WebGrabCaps[]

static

Initial value:

=
{
        CAP_UINT(GF_CAPS_OUTPUT, GF_PROP_PID_STREAM_TYPE, GF_STREAM_VISUAL),
        CAP_UINT(GF_CAPS_OUTPUT, GF_PROP_PID_CODECID, GF_CODECID_RAW),
        {0},
        CAP_UINT(GF_CAPS_OUTPUT, GF_PROP_PID_STREAM_TYPE, GF_STREAM_AUDIO),
        CAP_UINT(GF_CAPS_OUTPUT, GF_PROP_PID_CODECID, GF_CODECID_RAW),
}

WebGrabArgs

const GF_FilterArgs WebGrabArgs[]

static

Initial value:

=
{
        { OFFS(src), "source url", GF_PROP_STRING, NULL, NULL, 0},
        { OFFS(vsize), "desired webcam resolution", GF_PROP_VEC2I, "0x0", NULL, GF_FS_ARG_HINT_ADVANCED},
        { OFFS(back), "use back camera", GF_PROP_BOOL, "false", NULL, GF_FS_ARG_HINT_ADVANCED},
        { OFFS(ntp), "mark packets with NTP", GF_PROP_BOOL, "false", NULL, GF_FS_ARG_HINT_ADVANCED},
        { OFFS(alpha), "keep alpha when brabbing canvas", GF_PROP_BOOL, "false", NULL, GF_FS_ARG_HINT_ADVANCED},
        { OFFS(fps), "framerate to use when grabbing images - 0 FPS means single image", GF_PROP_FRACTION, "0/1", NULL, GF_FS_ARG_HINT_ADVANCED},
        {0}
}

GF_WebGrabRegister

GF_FilterRegister GF_WebGrabRegister

Initial value:

= {
        .name = "webgrab",
 
        GF_FS_SET_HELP("This filter grabs audio and video streams MediaStreamTrackProcessor of the browser\n"
        "\n"
        "Supported URL schemes:\n"
        "- video:// grabs from camera\n"
        "- audio:// grabs from microphone\n"
        "- av:// grabs both audio from microphone and video from camera\n"
        "- video://ELTID grabs from DOM element with ID `ELTID` (the element must be a valid element accepted by `VideoFrame` constructor)\n"
        )
        .args = WebGrabArgs,
        SETCAPS(WebGrabCaps),
        
        .flags = GF_FS_REG_MAIN_THREAD|GF_FS_REG_ASYNC_BLOCK,
        .private_size = sizeof(GF_WebGrab),
 
 
 
 
 
 
 
        .process = webgrab_process_dummy,
 
        .hint_class_type = GF_FS_CLASS_MM_IO
}