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Diffstat (limited to 'ffmpeg1/libavdevice/x11grab.c')
-rw-r--r--ffmpeg1/libavdevice/x11grab.c628
1 files changed, 628 insertions, 0 deletions
diff --git a/ffmpeg1/libavdevice/x11grab.c b/ffmpeg1/libavdevice/x11grab.c
new file mode 100644
index 0000000..6124006
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+++ b/ffmpeg1/libavdevice/x11grab.c
@@ -0,0 +1,628 @@
+/*
+ * X11 video grab interface
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg integration:
+ * Copyright (C) 2006 Clemens Fruhwirth <clemens@endorphin.org>
+ * Edouard Gomez <ed.gomez@free.fr>
+ *
+ * This file contains code from grab.c:
+ * Copyright (c) 2000-2001 Fabrice Bellard
+ *
+ * This file contains code from the xvidcap project:
+ * Copyright (C) 1997-1998 Rasca, Berlin
+ * 2003-2004 Karl H. Beckers, Frankfurt
+ *
+ * FFmpeg is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * X11 frame device demuxer
+ * @author Clemens Fruhwirth <clemens@endorphin.org>
+ * @author Edouard Gomez <ed.gomez@free.fr>
+ */
+
+#include "config.h"
+#include "libavformat/internal.h"
+#include "libavutil/log.h"
+#include "libavutil/opt.h"
+#include "libavutil/parseutils.h"
+#include "libavutil/time.h"
+#include <time.h>
+#include <X11/cursorfont.h>
+#include <X11/X.h>
+#include <X11/Xlib.h>
+#include <X11/Xlibint.h>
+#include <X11/Xproto.h>
+#include <X11/Xutil.h>
+#include <sys/shm.h>
+#include <X11/extensions/shape.h>
+#include <X11/extensions/XShm.h>
+#include <X11/extensions/Xfixes.h>
+#include "avdevice.h"
+
+/**
+ * X11 Device Demuxer context
+ */
+struct x11grab {
+ const AVClass *class; /**< Class for private options. */
+ int frame_size; /**< Size in bytes of a grabbed frame */
+ AVRational time_base; /**< Time base */
+ int64_t time_frame; /**< Current time */
+
+ int width; /**< Width of the grab frame */
+ int height; /**< Height of the grab frame */
+ int x_off; /**< Horizontal top-left corner coordinate */
+ int y_off; /**< Vertical top-left corner coordinate */
+
+ Display *dpy; /**< X11 display from which x11grab grabs frames */
+ XImage *image; /**< X11 image holding the grab */
+ int use_shm; /**< !0 when using XShm extension */
+ XShmSegmentInfo shminfo; /**< When using XShm, keeps track of XShm infos */
+ int draw_mouse; /**< Set by a private option. */
+ int follow_mouse; /**< Set by a private option. */
+ int show_region; /**< set by a private option. */
+ char *framerate; /**< Set by a private option. */
+
+ Window region_win; /**< This is used by show_region option. */
+};
+
+#define REGION_WIN_BORDER 3
+/**
+ * Draw grabbing region window
+ *
+ * @param s x11grab context
+ */
+static void
+x11grab_draw_region_win(struct x11grab *s)
+{
+ Display *dpy = s->dpy;
+ int screen;
+ Window win = s->region_win;
+ GC gc;
+
+ screen = DefaultScreen(dpy);
+ gc = XCreateGC(dpy, win, 0, 0);
+ XSetForeground(dpy, gc, WhitePixel(dpy, screen));
+ XSetBackground(dpy, gc, BlackPixel(dpy, screen));
+ XSetLineAttributes(dpy, gc, REGION_WIN_BORDER, LineDoubleDash, 0, 0);
+ XDrawRectangle(dpy, win, gc,
+ 1, 1,
+ (s->width + REGION_WIN_BORDER * 2) - 1 * 2 - 1,
+ (s->height + REGION_WIN_BORDER * 2) - 1 * 2 - 1);
+ XFreeGC(dpy, gc);
+}
+
+/**
+ * Initialize grabbing region window
+ *
+ * @param s x11grab context
+ */
+static void
+x11grab_region_win_init(struct x11grab *s)
+{
+ Display *dpy = s->dpy;
+ int screen;
+ XSetWindowAttributes attribs;
+ XRectangle rect;
+
+ screen = DefaultScreen(dpy);
+ attribs.override_redirect = True;
+ s->region_win = XCreateWindow(dpy, RootWindow(dpy, screen),
+ s->x_off - REGION_WIN_BORDER,
+ s->y_off - REGION_WIN_BORDER,
+ s->width + REGION_WIN_BORDER * 2,
+ s->height + REGION_WIN_BORDER * 2,
+ 0, CopyFromParent,
+ InputOutput, CopyFromParent,
+ CWOverrideRedirect, &attribs);
+ rect.x = 0;
+ rect.y = 0;
+ rect.width = s->width;
+ rect.height = s->height;
+ XShapeCombineRectangles(dpy, s->region_win,
+ ShapeBounding, REGION_WIN_BORDER, REGION_WIN_BORDER,
+ &rect, 1, ShapeSubtract, 0);
+ XMapWindow(dpy, s->region_win);
+ XSelectInput(dpy, s->region_win, ExposureMask | StructureNotifyMask);
+ x11grab_draw_region_win(s);
+}
+
+/**
+ * Initialize the x11 grab device demuxer (public device demuxer API).
+ *
+ * @param s1 Context from avformat core
+ * @return <ul>
+ * <li>AVERROR(ENOMEM) no memory left</li>
+ * <li>AVERROR(EIO) other failure case</li>
+ * <li>0 success</li>
+ * </ul>
+ */
+static int
+x11grab_read_header(AVFormatContext *s1)
+{
+ struct x11grab *x11grab = s1->priv_data;
+ Display *dpy;
+ AVStream *st = NULL;
+ enum AVPixelFormat input_pixfmt;
+ XImage *image;
+ int x_off = 0;
+ int y_off = 0;
+ int screen;
+ int use_shm;
+ char *dpyname, *offset;
+ int ret = 0;
+ AVRational framerate;
+
+ dpyname = av_strdup(s1->filename);
+ if (!dpyname)
+ goto out;
+
+ offset = strchr(dpyname, '+');
+ if (offset) {
+ sscanf(offset, "%d,%d", &x_off, &y_off);
+ if (strstr(offset, "nomouse")) {
+ av_log(s1, AV_LOG_WARNING,
+ "'nomouse' specification in argument is deprecated: "
+ "use 'draw_mouse' option with value 0 instead\n");
+ x11grab->draw_mouse = 0;
+ }
+ *offset= 0;
+ }
+
+ if ((ret = av_parse_video_rate(&framerate, x11grab->framerate)) < 0) {
+ av_log(s1, AV_LOG_ERROR, "Could not parse framerate: %s.\n", x11grab->framerate);
+ goto out;
+ }
+ av_log(s1, AV_LOG_INFO, "device: %s -> display: %s x: %d y: %d width: %d height: %d\n",
+ s1->filename, dpyname, x_off, y_off, x11grab->width, x11grab->height);
+
+ dpy = XOpenDisplay(dpyname);
+ av_freep(&dpyname);
+ if(!dpy) {
+ av_log(s1, AV_LOG_ERROR, "Could not open X display.\n");
+ ret = AVERROR(EIO);
+ goto out;
+ }
+
+ st = avformat_new_stream(s1, NULL);
+ if (!st) {
+ ret = AVERROR(ENOMEM);
+ goto out;
+ }
+ avpriv_set_pts_info(st, 64, 1, 1000000); /* 64 bits pts in us */
+
+ screen = DefaultScreen(dpy);
+
+ if (x11grab->follow_mouse) {
+ int screen_w, screen_h;
+ Window w;
+
+ screen_w = DisplayWidth(dpy, screen);
+ screen_h = DisplayHeight(dpy, screen);
+ XQueryPointer(dpy, RootWindow(dpy, screen), &w, &w, &x_off, &y_off, &ret, &ret, &ret);
+ x_off -= x11grab->width / 2;
+ y_off -= x11grab->height / 2;
+ x_off = FFMIN(FFMAX(x_off, 0), screen_w - x11grab->width);
+ y_off = FFMIN(FFMAX(y_off, 0), screen_h - x11grab->height);
+ av_log(s1, AV_LOG_INFO, "followmouse is enabled, resetting grabbing region to x: %d y: %d\n", x_off, y_off);
+ }
+
+ use_shm = XShmQueryExtension(dpy);
+ av_log(s1, AV_LOG_INFO, "shared memory extension%s found\n", use_shm ? "" : " not");
+
+ if(use_shm) {
+ int scr = XDefaultScreen(dpy);
+ image = XShmCreateImage(dpy,
+ DefaultVisual(dpy, scr),
+ DefaultDepth(dpy, scr),
+ ZPixmap,
+ NULL,
+ &x11grab->shminfo,
+ x11grab->width, x11grab->height);
+ x11grab->shminfo.shmid = shmget(IPC_PRIVATE,
+ image->bytes_per_line * image->height,
+ IPC_CREAT|0777);
+ if (x11grab->shminfo.shmid == -1) {
+ av_log(s1, AV_LOG_ERROR, "Fatal: Can't get shared memory!\n");
+ ret = AVERROR(ENOMEM);
+ goto out;
+ }
+ x11grab->shminfo.shmaddr = image->data = shmat(x11grab->shminfo.shmid, 0, 0);
+ x11grab->shminfo.readOnly = False;
+
+ if (!XShmAttach(dpy, &x11grab->shminfo)) {
+ av_log(s1, AV_LOG_ERROR, "Fatal: Failed to attach shared memory!\n");
+ /* needs some better error subroutine :) */
+ ret = AVERROR(EIO);
+ goto out;
+ }
+ } else {
+ image = XGetImage(dpy, RootWindow(dpy, screen),
+ x_off,y_off,
+ x11grab->width, x11grab->height,
+ AllPlanes, ZPixmap);
+ }
+
+ switch (image->bits_per_pixel) {
+ case 8:
+ av_log (s1, AV_LOG_DEBUG, "8 bit palette\n");
+ input_pixfmt = AV_PIX_FMT_PAL8;
+ break;
+ case 16:
+ if ( image->red_mask == 0xf800 &&
+ image->green_mask == 0x07e0 &&
+ image->blue_mask == 0x001f ) {
+ av_log (s1, AV_LOG_DEBUG, "16 bit RGB565\n");
+ input_pixfmt = AV_PIX_FMT_RGB565;
+ } else if (image->red_mask == 0x7c00 &&
+ image->green_mask == 0x03e0 &&
+ image->blue_mask == 0x001f ) {
+ av_log(s1, AV_LOG_DEBUG, "16 bit RGB555\n");
+ input_pixfmt = AV_PIX_FMT_RGB555;
+ } else {
+ av_log(s1, AV_LOG_ERROR, "RGB ordering at image depth %i not supported ... aborting\n", image->bits_per_pixel);
+ av_log(s1, AV_LOG_ERROR, "color masks: r 0x%.6lx g 0x%.6lx b 0x%.6lx\n", image->red_mask, image->green_mask, image->blue_mask);
+ ret = AVERROR(EIO);
+ goto out;
+ }
+ break;
+ case 24:
+ if ( image->red_mask == 0xff0000 &&
+ image->green_mask == 0x00ff00 &&
+ image->blue_mask == 0x0000ff ) {
+ input_pixfmt = AV_PIX_FMT_BGR24;
+ } else if ( image->red_mask == 0x0000ff &&
+ image->green_mask == 0x00ff00 &&
+ image->blue_mask == 0xff0000 ) {
+ input_pixfmt = AV_PIX_FMT_RGB24;
+ } else {
+ av_log(s1, AV_LOG_ERROR,"rgb ordering at image depth %i not supported ... aborting\n", image->bits_per_pixel);
+ av_log(s1, AV_LOG_ERROR, "color masks: r 0x%.6lx g 0x%.6lx b 0x%.6lx\n", image->red_mask, image->green_mask, image->blue_mask);
+ ret = AVERROR(EIO);
+ goto out;
+ }
+ break;
+ case 32:
+ input_pixfmt = AV_PIX_FMT_0RGB32;
+ break;
+ default:
+ av_log(s1, AV_LOG_ERROR, "image depth %i not supported ... aborting\n", image->bits_per_pixel);
+ ret = AVERROR(EINVAL);
+ goto out;
+ }
+
+ x11grab->frame_size = x11grab->width * x11grab->height * image->bits_per_pixel/8;
+ x11grab->dpy = dpy;
+ x11grab->time_base = av_inv_q(framerate);
+ x11grab->time_frame = av_gettime() / av_q2d(x11grab->time_base);
+ x11grab->x_off = x_off;
+ x11grab->y_off = y_off;
+ x11grab->image = image;
+ x11grab->use_shm = use_shm;
+
+ st->codec->codec_type = AVMEDIA_TYPE_VIDEO;
+ st->codec->codec_id = AV_CODEC_ID_RAWVIDEO;
+ st->codec->width = x11grab->width;
+ st->codec->height = x11grab->height;
+ st->codec->pix_fmt = input_pixfmt;
+ st->codec->time_base = x11grab->time_base;
+ st->codec->bit_rate = x11grab->frame_size * 1/av_q2d(x11grab->time_base) * 8;
+
+out:
+ av_free(dpyname);
+ return ret;
+}
+
+/**
+ * Paint a mouse pointer in an X11 image.
+ *
+ * @param image image to paint the mouse pointer to
+ * @param s context used to retrieve original grabbing rectangle
+ * coordinates
+ */
+static void
+paint_mouse_pointer(XImage *image, struct x11grab *s)
+{
+ int x_off = s->x_off;
+ int y_off = s->y_off;
+ int width = s->width;
+ int height = s->height;
+ Display *dpy = s->dpy;
+ XFixesCursorImage *xcim;
+ int x, y;
+ int line, column;
+ int to_line, to_column;
+ int pixstride = image->bits_per_pixel >> 3;
+ /* Warning: in its insanity, xlib provides unsigned image data through a
+ * char* pointer, so we have to make it uint8_t to make things not break.
+ * Anyone who performs further investigation of the xlib API likely risks
+ * permanent brain damage. */
+ uint8_t *pix = image->data;
+ Cursor c;
+ Window w;
+ XSetWindowAttributes attr;
+
+ /* Code doesn't currently support 16-bit or PAL8 */
+ if (image->bits_per_pixel != 24 && image->bits_per_pixel != 32)
+ return;
+
+ c = XCreateFontCursor(dpy, XC_left_ptr);
+ w = DefaultRootWindow(dpy);
+ attr.cursor = c;
+ XChangeWindowAttributes(dpy, w, CWCursor, &attr);
+
+ xcim = XFixesGetCursorImage(dpy);
+
+ x = xcim->x - xcim->xhot;
+ y = xcim->y - xcim->yhot;
+
+ to_line = FFMIN((y + xcim->height), (height + y_off));
+ to_column = FFMIN((x + xcim->width), (width + x_off));
+
+ for (line = FFMAX(y, y_off); line < to_line; line++) {
+ for (column = FFMAX(x, x_off); column < to_column; column++) {
+ int xcim_addr = (line - y) * xcim->width + column - x;
+ int image_addr = ((line - y_off) * width + column - x_off) * pixstride;
+ int r = (uint8_t)(xcim->pixels[xcim_addr] >> 0);
+ int g = (uint8_t)(xcim->pixels[xcim_addr] >> 8);
+ int b = (uint8_t)(xcim->pixels[xcim_addr] >> 16);
+ int a = (uint8_t)(xcim->pixels[xcim_addr] >> 24);
+
+ if (a == 255) {
+ pix[image_addr+0] = r;
+ pix[image_addr+1] = g;
+ pix[image_addr+2] = b;
+ } else if (a) {
+ /* pixel values from XFixesGetCursorImage come premultiplied by alpha */
+ pix[image_addr+0] = r + (pix[image_addr+0]*(255-a) + 255/2) / 255;
+ pix[image_addr+1] = g + (pix[image_addr+1]*(255-a) + 255/2) / 255;
+ pix[image_addr+2] = b + (pix[image_addr+2]*(255-a) + 255/2) / 255;
+ }
+ }
+ }
+
+ XFree(xcim);
+ xcim = NULL;
+}
+
+
+/**
+ * Read new data in the image structure.
+ *
+ * @param dpy X11 display to grab from
+ * @param d
+ * @param image Image where the grab will be put
+ * @param x Top-Left grabbing rectangle horizontal coordinate
+ * @param y Top-Left grabbing rectangle vertical coordinate
+ * @return 0 if error, !0 if successful
+ */
+static int
+xget_zpixmap(Display *dpy, Drawable d, XImage *image, int x, int y)
+{
+ xGetImageReply rep;
+ xGetImageReq *req;
+ long nbytes;
+
+ if (!image) {
+ return 0;
+ }
+
+ LockDisplay(dpy);
+ GetReq(GetImage, req);
+
+ /* First set up the standard stuff in the request */
+ req->drawable = d;
+ req->x = x;
+ req->y = y;
+ req->width = image->width;
+ req->height = image->height;
+ req->planeMask = (unsigned int)AllPlanes;
+ req->format = ZPixmap;
+
+ if (!_XReply(dpy, (xReply *)&rep, 0, xFalse) || !rep.length) {
+ UnlockDisplay(dpy);
+ SyncHandle();
+ return 0;
+ }
+
+ nbytes = (long)rep.length << 2;
+ _XReadPad(dpy, image->data, nbytes);
+
+ UnlockDisplay(dpy);
+ SyncHandle();
+ return 1;
+}
+
+/**
+ * Grab a frame from x11 (public device demuxer API).
+ *
+ * @param s1 Context from avformat core
+ * @param pkt Packet holding the brabbed frame
+ * @return frame size in bytes
+ */
+static int
+x11grab_read_packet(AVFormatContext *s1, AVPacket *pkt)
+{
+ struct x11grab *s = s1->priv_data;
+ Display *dpy = s->dpy;
+ XImage *image = s->image;
+ int x_off = s->x_off;
+ int y_off = s->y_off;
+
+ int screen;
+ Window root;
+ int follow_mouse = s->follow_mouse;
+
+ int64_t curtime, delay;
+ struct timespec ts;
+
+ /* Calculate the time of the next frame */
+ s->time_frame += INT64_C(1000000);
+
+ /* wait based on the frame rate */
+ for(;;) {
+ curtime = av_gettime();
+ delay = s->time_frame * av_q2d(s->time_base) - curtime;
+ if (delay <= 0) {
+ if (delay < INT64_C(-1000000) * av_q2d(s->time_base)) {
+ s->time_frame += INT64_C(1000000);
+ }
+ break;
+ }
+ ts.tv_sec = delay / 1000000;
+ ts.tv_nsec = (delay % 1000000) * 1000;
+ nanosleep(&ts, NULL);
+ }
+
+ av_init_packet(pkt);
+ pkt->data = image->data;
+ pkt->size = s->frame_size;
+ pkt->pts = curtime;
+
+ screen = DefaultScreen(dpy);
+ root = RootWindow(dpy, screen);
+ if (follow_mouse) {
+ int screen_w, screen_h;
+ int pointer_x, pointer_y, _;
+ Window w;
+
+ screen_w = DisplayWidth(dpy, screen);
+ screen_h = DisplayHeight(dpy, screen);
+ XQueryPointer(dpy, root, &w, &w, &pointer_x, &pointer_y, &_, &_, &_);
+ if (follow_mouse == -1) {
+ // follow the mouse, put it at center of grabbing region
+ x_off += pointer_x - s->width / 2 - x_off;
+ y_off += pointer_y - s->height / 2 - y_off;
+ } else {
+ // follow the mouse, but only move the grabbing region when mouse
+ // reaches within certain pixels to the edge.
+ if (pointer_x > x_off + s->width - follow_mouse) {
+ x_off += pointer_x - (x_off + s->width - follow_mouse);
+ } else if (pointer_x < x_off + follow_mouse)
+ x_off -= (x_off + follow_mouse) - pointer_x;
+ if (pointer_y > y_off + s->height - follow_mouse) {
+ y_off += pointer_y - (y_off + s->height - follow_mouse);
+ } else if (pointer_y < y_off + follow_mouse)
+ y_off -= (y_off + follow_mouse) - pointer_y;
+ }
+ // adjust grabbing region position if it goes out of screen.
+ s->x_off = x_off = FFMIN(FFMAX(x_off, 0), screen_w - s->width);
+ s->y_off = y_off = FFMIN(FFMAX(y_off, 0), screen_h - s->height);
+
+ if (s->show_region && s->region_win)
+ XMoveWindow(dpy, s->region_win,
+ s->x_off - REGION_WIN_BORDER,
+ s->y_off - REGION_WIN_BORDER);
+ }
+
+ if (s->show_region) {
+ if (s->region_win) {
+ XEvent evt;
+ // clean up the events, and do the initinal draw or redraw.
+ for (evt.type = NoEventMask; XCheckMaskEvent(dpy, ExposureMask | StructureNotifyMask, &evt); );
+ if (evt.type)
+ x11grab_draw_region_win(s);
+ } else {
+ x11grab_region_win_init(s);
+ }
+ }
+
+ if(s->use_shm) {
+ if (!XShmGetImage(dpy, root, image, x_off, y_off, AllPlanes)) {
+ av_log (s1, AV_LOG_INFO, "XShmGetImage() failed\n");
+ }
+ } else {
+ if (!xget_zpixmap(dpy, root, image, x_off, y_off)) {
+ av_log (s1, AV_LOG_INFO, "XGetZPixmap() failed\n");
+ }
+ }
+
+ if (s->draw_mouse) {
+ paint_mouse_pointer(image, s);
+ }
+
+ return s->frame_size;
+}
+
+/**
+ * Close x11 frame grabber (public device demuxer API).
+ *
+ * @param s1 Context from avformat core
+ * @return 0 success, !0 failure
+ */
+static int
+x11grab_read_close(AVFormatContext *s1)
+{
+ struct x11grab *x11grab = s1->priv_data;
+
+ /* Detach cleanly from shared mem */
+ if (x11grab->use_shm) {
+ XShmDetach(x11grab->dpy, &x11grab->shminfo);
+ shmdt(x11grab->shminfo.shmaddr);
+ shmctl(x11grab->shminfo.shmid, IPC_RMID, NULL);
+ }
+
+ /* Destroy X11 image */
+ if (x11grab->image) {
+ XDestroyImage(x11grab->image);
+ x11grab->image = NULL;
+ }
+
+ if (x11grab->region_win) {
+ XDestroyWindow(x11grab->dpy, x11grab->region_win);
+ }
+
+ /* Free X11 display */
+ XCloseDisplay(x11grab->dpy);
+ return 0;
+}
+
+#define OFFSET(x) offsetof(struct x11grab, x)
+#define DEC AV_OPT_FLAG_DECODING_PARAM
+static const AVOption options[] = {
+ { "draw_mouse", "draw the mouse pointer", OFFSET(draw_mouse), AV_OPT_TYPE_INT, {.i64 = 1}, 0, 1, DEC },
+
+ { "follow_mouse", "move the grabbing region when the mouse pointer reaches within specified amount of pixels to the edge of region",
+ OFFSET(follow_mouse), AV_OPT_TYPE_INT, {.i64 = 0}, -1, INT_MAX, DEC, "follow_mouse" },
+ { "centered", "keep the mouse pointer at the center of grabbing region when following",
+ 0, AV_OPT_TYPE_CONST, {.i64 = -1}, INT_MIN, INT_MAX, DEC, "follow_mouse" },
+
+ { "framerate", "set video frame rate", OFFSET(framerate), AV_OPT_TYPE_STRING, {.str = "ntsc"}, 0, 0, DEC },
+ { "show_region", "show the grabbing region", OFFSET(show_region), AV_OPT_TYPE_INT, {.i64 = 0}, 0, 1, DEC },
+ { "video_size", "set video frame size", OFFSET(width), AV_OPT_TYPE_IMAGE_SIZE, {.str = "vga"}, 0, 0, DEC },
+ { NULL },
+};
+
+static const AVClass x11_class = {
+ .class_name = "X11grab indev",
+ .item_name = av_default_item_name,
+ .option = options,
+ .version = LIBAVUTIL_VERSION_INT,
+};
+
+/** x11 grabber device demuxer declaration */
+AVInputFormat ff_x11grab_demuxer = {
+ .name = "x11grab",
+ .long_name = NULL_IF_CONFIG_SMALL("X11grab"),
+ .priv_data_size = sizeof(struct x11grab),
+ .read_header = x11grab_read_header,
+ .read_packet = x11grab_read_packet,
+ .read_close = x11grab_read_close,
+ .flags = AVFMT_NOFILE,
+ .priv_class = &x11_class,
+};
generated by cgit v1.2.3 (git 2.39.1) at 2025-12-06 20:41:43 +0000