* Edouard Gomez <ed.gomez@free.fr>
*
* This file contains code from grab.c:
- * Copyright (c) 2000-2001 Fabrice Bellard
+ * Copyright (c) 2000-2001 Fabrice Bellard
*
* This file contains code from the xvidcap project:
* Copyright (C) 1997-1998 Rasca, Berlin
typedef struct
{
- Display *dpy;
- int frame_format;
- int frame_size;
- int frame_rate;
- int frame_rate_base;
- int64_t time_frame;
-
- int height;
- int width;
- int x_off;
- int y_off;
- XImage *image;
- int use_shm;
- XShmSegmentInfo shminfo;
- int mouse_wanted;
+ Display *dpy;
+ int frame_format;
+ int frame_size;
+ int frame_rate;
+ int frame_rate_base;
+ int64_t time_frame;
+
+ int height;
+ int width;
+ int x_off;
+ int y_off;
+ XImage *image;
+ int use_shm;
+ XShmSegmentInfo shminfo;
+ int mouse_wanted;
} X11Grab;
static int
x11grab_read_header(AVFormatContext *s1, AVFormatParameters *ap)
{
- X11Grab *x11grab = s1->priv_data;
- Display *dpy;
- AVStream *st = NULL;
- int width, height;
- int frame_rate, frame_rate_base, frame_size;
- int input_pixfmt;
- XImage *image;
- int x_off=0; int y_off = 0;
- int use_shm;
-
- dpy = XOpenDisplay(NULL);
- if(!dpy) {
- goto fail;
- }
-
- sscanf(ap->device, "x11:%d,%d", &x_off, &y_off);
- av_log(s1, AV_LOG_INFO, "device: %s -> x: %d y: %d width: %d height: %d\n", ap->device, x_off, y_off, ap->width, ap->height);
-
- if (!ap || ap->width <= 0 || ap->height <= 0 || ap->time_base.den <= 0) {
- av_log(s1, AV_LOG_ERROR, "AVParameters don't have any video size. Use -s.\n");
- return AVERROR_IO;
- }
-
- width = ap->width;
- height = ap->height;
- frame_rate = ap->time_base.den;
- frame_rate_base = ap->time_base.num;
-
- st = av_new_stream(s1, 0);
- if (!st) {
- return -ENOMEM;
- }
- av_set_pts_info(st, 64, 1, 1000000); /* 64 bits pts in us */
-
- use_shm = XShmQueryExtension(dpy);
- av_log(s1, AV_LOG_INFO, "shared memory extension %s\n", use_shm ? "found" : "not found");
-
- if(use_shm) {
- int scr = XDefaultScreen(dpy);
- image = XShmCreateImage(dpy,
- DefaultVisual(dpy, scr),
- DefaultDepth(dpy, scr),
- ZPixmap,
- NULL,
- &x11grab->shminfo,
- ap->width, ap->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");
- return -ENOMEM;
- }
- 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 :) */
- return AVERROR_IO;
- }
- } else {
- image = XGetImage(dpy, RootWindow(dpy, DefaultScreen(dpy)),
- x_off,y_off,
- ap->width,ap->height,
- AllPlanes, ZPixmap);
- }
-
- switch (image->bits_per_pixel) {
- case 8:
- av_log (s1, AV_LOG_DEBUG, "8 bit pallete\n");
- input_pixfmt = PIX_FMT_PAL8;
- break;
- case 16:
- if ( image->red_mask == 0xF800 && image->green_mask == 0x07E0
- && image->blue_mask == 0x1F ) {
- av_log (s1, AV_LOG_DEBUG, "16 bit RGB565\n");
- input_pixfmt = PIX_FMT_RGB565;
- } else if ( image->red_mask == 0x7C00 &&
- image->green_mask == 0x03E0 &&
- image->blue_mask == 0x1F ) {
- av_log(s1, AV_LOG_DEBUG, "16 bit RGB555\n");
- input_pixfmt = 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);
- return AVERROR_IO;
- }
- break;
- case 24:
- if ( image->red_mask == 0xFF0000 &&
- image->green_mask == 0xFF00
- && image->blue_mask == 0xFF ) {
- input_pixfmt = PIX_FMT_BGR24;
- } else if ( image->red_mask == 0xFF && image->green_mask == 0xFF00
- && image->blue_mask == 0xFF0000 ) {
- input_pixfmt = 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);
- return AVERROR_IO;
- }
- break;
- case 32:
+ X11Grab *x11grab = s1->priv_data;
+ Display *dpy;
+ AVStream *st = NULL;
+ int width, height;
+ int frame_rate, frame_rate_base, frame_size;
+ int input_pixfmt;
+ XImage *image;
+ int x_off=0; int y_off = 0;
+ int use_shm;
+
+ dpy = XOpenDisplay(NULL);
+ if(!dpy) {
+ goto fail;
+ }
+
+ sscanf(ap->device, "x11:%d,%d", &x_off, &y_off);
+ av_log(s1, AV_LOG_INFO, "device: %s -> x: %d y: %d width: %d height: %d\n", ap->device, x_off, y_off, ap->width, ap->height);
+
+ if (!ap || ap->width <= 0 || ap->height <= 0 || ap->time_base.den <= 0) {
+ av_log(s1, AV_LOG_ERROR, "AVParameters don't have any video size. Use -s.\n");
+ return AVERROR_IO;
+ }
+
+ width = ap->width;
+ height = ap->height;
+ frame_rate = ap->time_base.den;
+ frame_rate_base = ap->time_base.num;
+
+ st = av_new_stream(s1, 0);
+ if (!st) {
+ return -ENOMEM;
+ }
+ av_set_pts_info(st, 64, 1, 1000000); /* 64 bits pts in us */
+
+ use_shm = XShmQueryExtension(dpy);
+ av_log(s1, AV_LOG_INFO, "shared memory extension %s\n", use_shm ? "found" : "not found");
+
+ if(use_shm) {
+ int scr = XDefaultScreen(dpy);
+ image = XShmCreateImage(dpy,
+ DefaultVisual(dpy, scr),
+ DefaultDepth(dpy, scr),
+ ZPixmap,
+ NULL,
+ &x11grab->shminfo,
+ ap->width, ap->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");
+ return -ENOMEM;
+ }
+ 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 :) */
+ return AVERROR_IO;
+ }
+ } else {
+ image = XGetImage(dpy, RootWindow(dpy, DefaultScreen(dpy)),
+ x_off,y_off,
+ ap->width,ap->height,
+ AllPlanes, ZPixmap);
+ }
+
+ switch (image->bits_per_pixel) {
+ case 8:
+ av_log (s1, AV_LOG_DEBUG, "8 bit pallete\n");
+ input_pixfmt = PIX_FMT_PAL8;
+ break;
+ case 16:
+ if ( image->red_mask == 0xF800 && image->green_mask == 0x07E0
+ && image->blue_mask == 0x1F ) {
+ av_log (s1, AV_LOG_DEBUG, "16 bit RGB565\n");
+ input_pixfmt = PIX_FMT_RGB565;
+ } else if ( image->red_mask == 0x7C00 &&
+ image->green_mask == 0x03E0 &&
+ image->blue_mask == 0x1F ) {
+ av_log(s1, AV_LOG_DEBUG, "16 bit RGB555\n");
+ input_pixfmt = 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);
+ return AVERROR_IO;
+ }
+ break;
+ case 24:
+ if ( image->red_mask == 0xFF0000 &&
+ image->green_mask == 0xFF00
+ && image->blue_mask == 0xFF ) {
+ input_pixfmt = PIX_FMT_BGR24;
+ } else if ( image->red_mask == 0xFF && image->green_mask == 0xFF00
+ && image->blue_mask == 0xFF0000 ) {
+ input_pixfmt = 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);
+ return AVERROR_IO;
+ }
+ break;
+ case 32:
#if 0
- GetColorInfo (image, &c_info);
- if ( c_info.alpha_mask == 0xFF000000 && image->green_mask == 0xFF00 ) {
- /* byte order is relevant here, not endianness
- * endianness is handled by avcodec, but atm no such thing
- * as having ABGR, instead of ARGB in a word. Since we
- * need this for Solaris/SPARC, but need to do the conversion
- * for every frame we do it outside of this loop, cf. below
- * this matches both ARGB32 and ABGR32 */
- input_pixfmt = PIX_FMT_ARGB32;
- } else {
- av_log(s1, AV_LOG_ERROR,"image depth %i not supported ... aborting\n", image->bits_per_pixel);
- return AVERROR_IO;
- }
+ GetColorInfo (image, &c_info);
+ if ( c_info.alpha_mask == 0xFF000000 && image->green_mask == 0xFF00 ) {
+ /* byte order is relevant here, not endianness
+ * endianness is handled by avcodec, but atm no such thing
+ * as having ABGR, instead of ARGB in a word. Since we
+ * need this for Solaris/SPARC, but need to do the conversion
+ * for every frame we do it outside of this loop, cf. below
+ * this matches both ARGB32 and ABGR32 */
+ input_pixfmt = PIX_FMT_ARGB32;
+ } else {
+ av_log(s1, AV_LOG_ERROR,"image depth %i not supported ... aborting\n", image->bits_per_pixel);
+ return AVERROR_IO;
+ }
#endif
- input_pixfmt = PIX_FMT_RGBA32;
- break;
- default:
- av_log(s1, AV_LOG_ERROR, "image depth %i not supported ... aborting\n", image->bits_per_pixel);
- return -1;
- }
-
- frame_size = width * height * image->bits_per_pixel/8;
- x11grab->frame_size = frame_size;
- x11grab->dpy = dpy;
- x11grab->width = ap->width;
- x11grab->height = ap->height;
- x11grab->frame_rate = frame_rate;
- x11grab->frame_rate_base = frame_rate_base;
- x11grab->time_frame = av_gettime() * frame_rate / frame_rate_base;
- x11grab->x_off = x_off;
- x11grab->y_off = y_off;
- x11grab->image = image;
- x11grab->use_shm = use_shm;
- x11grab->mouse_wanted = 1;
-
- st->codec->codec_type = CODEC_TYPE_VIDEO;
- st->codec->codec_id = CODEC_ID_RAWVIDEO;
- st->codec->width = width;
- st->codec->height = height;
- st->codec->pix_fmt = input_pixfmt;
- st->codec->time_base.den = frame_rate;
- st->codec->time_base.num = frame_rate_base;
- st->codec->bit_rate = frame_size * 1/av_q2d(st->codec->time_base) * 8;
-
- return 0;
+ input_pixfmt = PIX_FMT_RGBA32;
+ break;
+ default:
+ av_log(s1, AV_LOG_ERROR, "image depth %i not supported ... aborting\n", image->bits_per_pixel);
+ return -1;
+ }
+
+ frame_size = width * height * image->bits_per_pixel/8;
+ x11grab->frame_size = frame_size;
+ x11grab->dpy = dpy;
+ x11grab->width = ap->width;
+ x11grab->height = ap->height;
+ x11grab->frame_rate = frame_rate;
+ x11grab->frame_rate_base = frame_rate_base;
+ x11grab->time_frame = av_gettime() * frame_rate / frame_rate_base;
+ x11grab->x_off = x_off;
+ x11grab->y_off = y_off;
+ x11grab->image = image;
+ x11grab->use_shm = use_shm;
+ x11grab->mouse_wanted = 1;
+
+ st->codec->codec_type = CODEC_TYPE_VIDEO;
+ st->codec->codec_id = CODEC_ID_RAWVIDEO;
+ st->codec->width = width;
+ st->codec->height = height;
+ st->codec->pix_fmt = input_pixfmt;
+ st->codec->time_base.den = frame_rate;
+ st->codec->time_base.num = frame_rate_base;
+ st->codec->bit_rate = frame_size * 1/av_q2d(st->codec->time_base) * 8;
+
+ return 0;
fail:
- av_free(st);
- return AVERROR_IO;
+ av_free(st);
+ return AVERROR_IO;
}
static void
getCurrentPointer(AVFormatContext *s1, X11Grab *s, int *x, int *y)
{
- Window mrootwindow, childwindow;
- int dummy;
- Display *dpy = s->dpy;
-
- mrootwindow = DefaultRootWindow(dpy);
-
- if (XQueryPointer(dpy, mrootwindow, &mrootwindow, &childwindow,
- x, y, &dummy, &dummy, (unsigned int*)&dummy)) {
- } else {
- av_log(s1, AV_LOG_INFO, "couldn't find mouse pointer\n");
- *x = -1;
- *y = -1;
- }
+ Window mrootwindow, childwindow;
+ int dummy;
+ Display *dpy = s->dpy;
+
+ mrootwindow = DefaultRootWindow(dpy);
+
+ if (XQueryPointer(dpy, mrootwindow, &mrootwindow, &childwindow,
+ x, y, &dummy, &dummy, (unsigned int*)&dummy)) {
+ } else {
+ av_log(s1, AV_LOG_INFO, "couldn't find mouse pointer\n");
+ *x = -1;
+ *y = -1;
+ }
}
-#define DRAW_CURSOR_TEMPLATE(type_t) \
-do { \
-type_t *cursor; \
-int width_cursor; \
-uint16_t bm_b, bm_w, mask; \
-\
-for (line = 0; line < min(20, (y_off + height) - *y); line++ ) { \
- if (s->mouse_wanted == 1) { \
- bm_b = mousePointerBlack[line]; \
- bm_w = mousePointerWhite[line]; \
- } else { \
- bm_b = mousePointerWhite[line]; \
- bm_w = mousePointerBlack[line]; \
- } \
- mask = ( 0x0001 << 15 ); \
-\
- for (cursor = (type_t*) im_data, width_cursor = 0; \
- ((width_cursor + *x) < (width + x_off) && width_cursor < 16); \
- cursor++, width_cursor++) { \
- if ( ( bm_b & mask ) > 0 ) { \
- *cursor &= ((~ image->red_mask) & (~ image->green_mask) & (~image->blue_mask )); \
- } else if ( ( bm_w & mask ) > 0 ) { \
- *cursor |= (image->red_mask | image->green_mask | image->blue_mask ); \
- } \
- mask >>= 1; \
- } \
- im_data += image->bytes_per_line; \
-} \
-} while (0)
+#define DRAW_CURSOR_TEMPLATE(type_t) \
+ do { \
+ type_t *cursor; \
+ int width_cursor; \
+ uint16_t bm_b, bm_w, mask; \
+ \
+ for (line = 0; line < min(20, (y_off + height) - *y); line++ ) { \
+ if (s->mouse_wanted == 1) { \
+ bm_b = mousePointerBlack[line]; \
+ bm_w = mousePointerWhite[line]; \
+ } else { \
+ bm_b = mousePointerWhite[line]; \
+ bm_w = mousePointerBlack[line]; \
+ } \
+ mask = ( 0x0001 << 15 ); \
+ \
+ for (cursor = (type_t*) im_data, width_cursor = 0; \
+ ((width_cursor + *x) < (width + x_off) && width_cursor < 16); \
+ cursor++, width_cursor++) { \
+ if ( ( bm_b & mask ) > 0 ) { \
+ *cursor &= ((~ image->red_mask) & (~ image->green_mask) & (~image->blue_mask )); \
+ } else if ( ( bm_w & mask ) > 0 ) { \
+ *cursor |= (image->red_mask | image->green_mask | image->blue_mask ); \
+ } \
+ mask >>= 1; \
+ } \
+ im_data += image->bytes_per_line; \
+ } \
+ } while (0)
static void
paintMousePointer(AVFormatContext *s1, X11Grab *s, int *x, int *y, XImage *image)
{
- static const uint16_t const mousePointerBlack[] =
- {
- 0, 49152, 40960, 36864, 34816,
- 33792, 33280, 33024, 32896, 32832,
- 33728, 37376, 43264, 51456, 1152,
- 1152, 576, 576, 448, 0
- };
-
- static const uint16_t const mousePointerWhite[] =
- {
- 0, 0, 16384, 24576, 28672,
- 30720, 31744, 32256, 32512, 32640,
- 31744, 27648, 17920, 1536, 768,
- 768, 384, 384, 0, 0
- };
-
- int x_off = s->x_off;
- int y_off = s->y_off;
- int width = s->width;
- int height = s->height;
-
- if ( (*x - x_off) >= 0 && *x < (width + x_off)
- && (*y - y_off) >= 0 && *y < (height + y_off) ) {
- int line;
- uint8_t *im_data = (uint8_t*)image->data;
-
- im_data += (image->bytes_per_line * (*y - y_off)); // shift to right line
- im_data += (image->bits_per_pixel / 8 * (*x - x_off)); // shift to right pixel
-
- switch(image->bits_per_pixel) {
- case 32:
- DRAW_CURSOR_TEMPLATE(uint32_t);
- break;
- case 16:
- DRAW_CURSOR_TEMPLATE(uint16_t);
- break;
- default:
- /* XXX: How do we deal with 24bit and 8bit modes ? */
- break;
- }
- }
+ static const uint16_t const mousePointerBlack[] =
+ {
+ 0, 49152, 40960, 36864, 34816,
+ 33792, 33280, 33024, 32896, 32832,
+ 33728, 37376, 43264, 51456, 1152,
+ 1152, 576, 576, 448, 0
+ };
+
+ static const uint16_t const mousePointerWhite[] =
+ {
+ 0, 0, 16384, 24576, 28672,
+ 30720, 31744, 32256, 32512, 32640,
+ 31744, 27648, 17920, 1536, 768,
+ 768, 384, 384, 0, 0
+ };
+
+ int x_off = s->x_off;
+ int y_off = s->y_off;
+ int width = s->width;
+ int height = s->height;
+
+ if ( (*x - x_off) >= 0 && *x < (width + x_off)
+ && (*y - y_off) >= 0 && *y < (height + y_off) ) {
+ int line;
+ uint8_t *im_data = (uint8_t*)image->data;
+
+ im_data += (image->bytes_per_line * (*y - y_off)); // shift to right line
+ im_data += (image->bits_per_pixel / 8 * (*x - x_off)); // shift to right pixel
+
+ switch(image->bits_per_pixel) {
+ case 32:
+ DRAW_CURSOR_TEMPLATE(uint32_t);
+ break;
+ case 16:
+ DRAW_CURSOR_TEMPLATE(uint16_t);
+ break;
+ default:
+ /* XXX: How do we deal with 24bit and 8bit modes ? */
+ break;
+ }
+ }
}
static int
XGetZPixmap(Display *dpy, Drawable d, XImage *image, int x, int y)
{
- xGetImageReply rep;
- xGetImageReq *req;
- long nbytes;
-
- if (!image) {
- return False;
- }
-
- 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 False;
- }
-
- nbytes = (long)rep.length << 2;
- _XReadPad(dpy, image->data, nbytes);
-
- UnlockDisplay(dpy);
- SyncHandle();
- return True;
+ xGetImageReply rep;
+ xGetImageReq *req;
+ long nbytes;
+
+ if (!image) {
+ return False;
+ }
+
+ 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 False;
+ }
+
+ nbytes = (long)rep.length << 2;
+ _XReadPad(dpy, image->data, nbytes);
+
+ UnlockDisplay(dpy);
+ SyncHandle();
+ return True;
}
static int x11grab_read_packet(AVFormatContext *s1, AVPacket *pkt)
{
- 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;
-
- int64_t curtime, delay;
- struct timespec ts;
-
- /* Calculate the time of the next frame */
- s->time_frame += int64_t_C(1000000);
-
- /* wait based on the frame rate */
- for(;;) {
- curtime = av_gettime();
- delay = s->time_frame * s->frame_rate_base / s->frame_rate - curtime;
- if (delay <= 0) {
- if (delay < int64_t_C(-1000000) * s->frame_rate_base / s->frame_rate) {
- s->time_frame += int64_t_C(1000000);
- }
- break;
- }
- ts.tv_sec = delay / 1000000;
- ts.tv_nsec = (delay % 1000000) * 1000;
- nanosleep(&ts, NULL);
- }
-
- if (av_new_packet(pkt, s->frame_size) < 0) {
- return AVERROR_IO;
- }
-
- pkt->pts = curtime & ((1LL << 48) - 1);
-
- if(s->use_shm) {
- if (!XShmGetImage(dpy, RootWindow(dpy, DefaultScreen(dpy)), image, x_off, y_off, AllPlanes)) {
- av_log (s1, AV_LOG_INFO, "XShmGetImage() failed\n");
- }
- } else {
- if (!XGetZPixmap(dpy, RootWindow(dpy, DefaultScreen(dpy)), image, x_off, y_off)) {
- av_log (s1, AV_LOG_INFO, "XGetZPixmap() failed\n");
- }
- }
-
- {
- int pointer_x, pointer_y;
- getCurrentPointer(s1, s, &pointer_x, &pointer_y);
- paintMousePointer(s1, s, &pointer_x, &pointer_y, image);
- }
-
-
- /* XXX: avoid memcpy */
- memcpy(pkt->data, image->data, s->frame_size);
- return s->frame_size;
+ 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;
+
+ int64_t curtime, delay;
+ struct timespec ts;
+
+ /* Calculate the time of the next frame */
+ s->time_frame += int64_t_C(1000000);
+
+ /* wait based on the frame rate */
+ for(;;) {
+ curtime = av_gettime();
+ delay = s->time_frame * s->frame_rate_base / s->frame_rate - curtime;
+ if (delay <= 0) {
+ if (delay < int64_t_C(-1000000) * s->frame_rate_base / s->frame_rate) {
+ s->time_frame += int64_t_C(1000000);
+ }
+ break;
+ }
+ ts.tv_sec = delay / 1000000;
+ ts.tv_nsec = (delay % 1000000) * 1000;
+ nanosleep(&ts, NULL);
+ }
+
+ if (av_new_packet(pkt, s->frame_size) < 0) {
+ return AVERROR_IO;
+ }
+
+ pkt->pts = curtime & ((1LL << 48) - 1);
+
+ if(s->use_shm) {
+ if (!XShmGetImage(dpy, RootWindow(dpy, DefaultScreen(dpy)), image, x_off, y_off, AllPlanes)) {
+ av_log (s1, AV_LOG_INFO, "XShmGetImage() failed\n");
+ }
+ } else {
+ if (!XGetZPixmap(dpy, RootWindow(dpy, DefaultScreen(dpy)), image, x_off, y_off)) {
+ av_log (s1, AV_LOG_INFO, "XGetZPixmap() failed\n");
+ }
+ }
+
+ {
+ int pointer_x, pointer_y;
+ getCurrentPointer(s1, s, &pointer_x, &pointer_y);
+ paintMousePointer(s1, s, &pointer_x, &pointer_y, image);
+ }
+
+
+ /* XXX: avoid memcpy */
+ memcpy(pkt->data, image->data, s->frame_size);
+ return s->frame_size;
}
static int x11grab_read_close(AVFormatContext *s1)
{
- 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;
- }
-
- /* Free X11 display */
- XCloseDisplay(x11grab->dpy);
- return 0;
+ 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;
+ }
+
+ /* Free X11 display */
+ XCloseDisplay(x11grab->dpy);
+ return 0;
}
AVInputFormat x11_grab_device_demuxer =
{
- "x11grab",
- "X11grab",
- sizeof(X11Grab),
- NULL,
- x11grab_read_header,
- x11grab_read_packet,
- x11grab_read_close,
- .flags = AVFMT_NOFILE,
+ "x11grab",
+ "X11grab",
+ sizeof(X11Grab),
+ NULL,
+ x11grab_read_header,
+ x11grab_read_packet,
+ x11grab_read_close,
+ .flags = AVFMT_NOFILE,
};
projects / platform / upstream / libav.git / commitdiff