Adapt the patch to more recent FFmpeg habits

- Indentation
- Use av_log instead of fprintf
- Removed strdup of the device name. It was unused
- Cleaned things a bit
(patch by Edouard Gomez)

Originally committed as revision 7303 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Edouard Gomez 2006-12-13 08:46:31 +00:00 committed by Guillaume Poirier
parent f58f4ce19d
commit 2909f17717
1 changed files with 429 additions and 413 deletions

View File

@ -1,6 +1,6 @@
/*
* X11 video grab interface
* Copyright (c) 2006 Clemens Fruhwirth
* Copyright (C) 2006 Clemens Fruhwirth
*
* A quick note on licensing. This file is a mixture of LGPL code
* (ffmpeg) and GPL code (xvidcap). The result is a file that must
@ -42,6 +42,7 @@
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include "avformat.h"
#include <unistd.h>
#include <fcntl.h>
@ -58,8 +59,8 @@
#include <sys/shm.h>
#include <X11/extensions/XShm.h>
typedef struct {
typedef struct
{
Display *dpy;
int frame_format;
int frame_size;
@ -77,66 +78,71 @@ typedef struct {
int mouse_wanted;
} X11Grab;
static int x11grab_read_header(AVFormatContext *s1, AVFormatParameters *ap)
static int
x11grab_read_header(AVFormatContext *s1, AVFormatParameters *ap)
{
X11Grab *x11grab = s1->priv_data;
Display *dpy;
AVStream *st;
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;
char *device_parsing = strdup(ap->device);
int use_shm;
dpy = XOpenDisplay(NULL);
if(!dpy)
if(!dpy) {
goto fail;
}
sscanf(device_parsing,"x11:%d,%d",&x_off, &y_off);
fprintf(stderr,"device: %s -> x: %d y: %d width: %d height: %d\n", ap->device, x_off, y_off, ap->width, ap->height);
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) {
fprintf(stderr,"x11grab: AVParameters don't have any video size. Use -s.\n");
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)
if (!st) {
return -ENOMEM;
}
av_set_pts_info(st, 48, 1, 1000000); /* 48 bits pts in us */
use_shm = XShmQueryExtension(dpy);
fprintf(stderr,"x11grab: shared memory extension %s\n",use_shm?"found":"not found");
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);
ZPixmap,
NULL,
&x11grab->shminfo,
ap->width, ap->height);
x11grab->shminfo.shmid = shmget(IPC_PRIVATE,
image->bytes_per_line * image->height, IPC_CREAT|0777);
image->bytes_per_line * image->height,
IPC_CREAT|0777);
if (x11grab->shminfo.shmid == -1) {
fprintf(stderr,"Fatal: Can't get shared memory!\n");
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) == 0) {
fprintf(stderr,"Fatal: Failed to attach shared memory!\n");
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 {
} else {
image = XGetImage(dpy, RootWindow(dpy, DefaultScreen(dpy)),
x_off,y_off,
ap->width,ap->height,
@ -145,22 +151,22 @@ static int x11grab_read_header(AVFormatContext *s1, AVFormatParameters *ap)
switch (image->bits_per_pixel) {
case 8:
fprintf (stderr, "x11grab: 8 bit pallete\n");
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 ) {
fprintf (stderr, "x11grab: 16 bit RGB565\n");
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 ) {
fprintf (stderr, "x11grab: 16 bit RGB555\n");
av_log(s1, AV_LOG_DEBUG, "16 bit RGB555\n");
input_pixfmt = PIX_FMT_RGB555;
} else {
fprintf (stderr, "x11grab: RGB ordering at image depth %i not supported ... aborting\n", image->bits_per_pixel);
fprintf (stderr, "x11grab: color masks: r 0x%.6X g 0x%.6X b 0x%.6X\n", image->red_mask, image->green_mask, image->blue_mask);
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;
@ -173,8 +179,8 @@ static int x11grab_read_header(AVFormatContext *s1, AVFormatParameters *ap)
&& image->blue_mask == 0xFF0000 ) {
input_pixfmt = PIX_FMT_RGB24;
} else {
fprintf (stderr, "xtoffmpeg.XImageToFFMPEG(): rgb ordering at image depth %i not supported ... aborting\n", image->bits_per_pixel);
fprintf (stderr, "xtoffmpeg.XImageToFFMPEG(): color masks: r 0x%.6X g 0x%.6X b 0x%.6X\n", image->red_mask, image->green_mask, image->blue_mask);
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;
@ -190,14 +196,14 @@ static int x11grab_read_header(AVFormatContext *s1, AVFormatParameters *ap)
// this matches both ARGB32 and ABGR32
input_pixfmt = PIX_FMT_ARGB32;
} else {
fprintf (stderr, "xtoffmpeg.XImageToFFMPEG(): image depth %i not supported ... aborting\n", image->bits_per_pixel);
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:
fprintf (stderr, "xtoffmpeg.XImageToFFMPEG(): image depth %i not supported ... aborting\n", image->bits_per_pixel);
av_log(s1, AV_LOG_ERROR, "image depth %i not supported ... aborting\n", image->bits_per_pixel);
return -1;
}
@ -227,16 +233,24 @@ static int x11grab_read_header(AVFormatContext *s1, AVFormatParameters *ap)
return 0;
fail:
av_free(st);
av_free(device_parsing);
return AVERROR_IO;
}
uint16_t mousePointerBlack[] = { 0, 49152, 40960, 36864, 34816, 33792, 33280, 33024, 32896, 32832,
33728, 37376, 43264, 51456, 1152, 1152, 576, 576, 448, 0 };
uint16_t mousePointerWhite[] = { 0, 0, 16384, 24576, 28672, 30720, 31744, 32256, 32512, 32640, 31744,
27648, 17920, 1536, 768, 768, 384, 384, 0, 0 };
static const uint16_t mousePointerBlack[] =
{
0, 49152, 40960, 36864, 34816, 33792, 33280, 33024, 32896, 32832,
33728, 37376, 43264, 51456, 1152, 1152, 576, 576, 448, 0
};
static void getCurrentPointer(X11Grab *s, int *x, int *y) {
static const uint16_t mousePointerWhite[] =
{
0, 0, 16384, 24576, 28672, 30720, 31744, 32256, 32512, 32640, 31744,
27648, 17920, 1536, 768, 768, 384, 384, 0, 0
};
static void
getCurrentPointer(AVFormatContext *s1, X11Grab *s, int *x, int *y)
{
Window mrootwindow, childwindow;
int dummy;
Display *dpy = s->dpy;
@ -244,26 +258,26 @@ static void getCurrentPointer(X11Grab *s, int *x, int *y) {
mrootwindow = DefaultRootWindow(dpy);
if (XQueryPointer(dpy, mrootwindow, &mrootwindow, &childwindow,
x, y, &dummy, &dummy, &dummy)) {
x, y, &dummy, &dummy, (unsigned int*)&dummy)) {
} else {
fprintf(stderr,"couldn't find mouse pointer\n");
av_log(s1, AV_LOG_INFO, "couldn't find mouse pointer\n");
*x = -1;
*y = -1;
}
}
static void paintMousePointer(X11Grab *s, int *x, int *y, XImage *image) {
static void
paintMousePointer(AVFormatContext *s1, X11Grab *s, int *x, int *y, XImage *image)
{
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) ) {
if ( (*x - x_off) >= 0 && *x < (width + x_off)
&& (*y - y_off) >= 0 && *y < (height + y_off) ) {
int line;
uint8_t *im_data = image->data;
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
@ -275,7 +289,7 @@ static void paintMousePointer(X11Grab *s, int *x, int *y, XImage *image) {
int width_cursor;
uint16_t bm_b, bm_w, mask;
for (line = 0; line < 20; line++ ) {
for (line = 0; line < min(20, (y_off + height) - *y); line++ ) {
if (s->mouse_wanted == 1) {
bm_b = mousePointerBlack[line];
bm_w = mousePointerWhite[line];
@ -292,11 +306,14 @@ static void paintMousePointer(X11Grab *s, int *x, int *y, XImage *image) {
// pointer_b_bit = ( ( bm_b & mask ) > 0 );
// pointer_w_bit = ( ( bm_w & mask ) > 0 );
// printf("%i ", pointer_b_bit, pointer_w_bit );
if (( bm_b & mask) > 0 ) {
*cursor &= ((~ image->red_mask) & (~ image->green_mask) & (~image->blue_mask ));
*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 );
*cursor |= ( image->red_mask
| image->green_mask
| image->blue_mask );
}
mask >>= 1;
}
@ -307,12 +324,13 @@ static void paintMousePointer(X11Grab *s, int *x, int *y, XImage *image) {
break;
#if 0
case 24: // not sure this can occur at all ..........
fprintf(stderr,"input image bits_per_pixel %i not implemented with mouse pointer capture ... aborting!\n",
av_log(s1, AV_LOG_ERROR, "input image bits_per_pixel %i not implemented with mouse pointer capture ... aborting!\n",
image->bits_per_pixel);
fprintf(stderr,"Please file a bug at http://www.sourceforge.net/projects/xvidcap/\n");
av_log(s1, AV_LOG_ERROR, "Please file a bug at http://www.sourceforge.net/projects/xvidcap/\n");
exit(1);
break;
case 16: {
case 16:
{
uint16_t *cursor;
int width;
uint16_t bm_b, bm_w, mask;
@ -331,19 +349,19 @@ static void paintMousePointer(X11Grab *s, int *x, int *y, XImage *image) {
((width + *x) < (mjob->area->width + mjob->area->x)&&width < 6);
cursor++, width++) {
// Boolean pointer_b_bit, pointer_w_bit;
// pointer_b_bit = ( ( bm_b & mask ) > 0 );
// pointer_w_bit = ( ( bm_w & mask ) > 0 );
// printf("%i ", pointer_b_bit, pointer_w_bit );
if (( bm_b & mask ) > 0 ) {
*cursor &= ((~ image->red_mask) & (~ image->green_mask) & (~
image->blue_mask ));
*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 );
*cursor |= ( image->red_mask
| image->green_mask
| image->blue_mask );
}
mask >>= 1;
}
// printf("\n");
@ -351,7 +369,8 @@ static void paintMousePointer(X11Grab *s, int *x, int *y, XImage *image) {
}
}
break;
case 8: {
case 8:
{
uint8_t *cursor;
int width;
uint16_t bm_b, bm_w, mask;
@ -370,11 +389,9 @@ static void paintMousePointer(X11Grab *s, int *x, int *y, XImage *image) {
((width + *x) < (mjob->area->width + mjob->area->x)&&width < 6);
cursor++, width++) {
// Boolean pointer_b_bit, pointer_w_bit;
// pointer_b_bit = ( ( bm_b & mask ) > 0 );
// pointer_w_bit = ( ( bm_w & mask ) > 0 );
// printf("%i ", pointer_b_bit, pointer_w_bit );
if ((bm_b & mask) > 0 ) {
*cursor = 0;
} else if (( bm_w & mask) > 0 ) {
@ -390,7 +407,7 @@ static void paintMousePointer(X11Grab *s, int *x, int *y, XImage *image) {
}
break;
default:
fprintf(stderr,"input image bits_per_pixel %i not supported with mouse pointer capture ... aborting!\n",
av_log(s1, AV_LOG_ERROR, "input image bits_per_pixel %i not supported with mouse pointer capture ... aborting!\n",
image->bits_per_pixel);
exit(1);
@ -411,26 +428,26 @@ XGetZPixmap(Display *dpy, Drawable d, XImage *image, int x, int y)
xGetImageReq *req;
long nbytes;
if (!image)
return (False);
if (!image) {
return False;
}
LockDisplay(dpy);
GetReq(GetImage, req);
/*
* first set up the standard stuff in the request
*/
/* 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 = AllPlanes;
req->planeMask = (unsigned int)AllPlanes;
req->format = ZPixmap;
if (_XReply(dpy, (xReply *) &rep, 0, xFalse) == 0 ||
rep.length == 0) {
if (!_XReply(dpy, (xReply *) &rep, 0, xFalse) || !rep.length) {
UnlockDisplay(dpy);
SyncHandle();
return (False);
return False;
}
nbytes = (long)rep.length << 2;
@ -438,7 +455,7 @@ XGetZPixmap(Display *dpy, Drawable d, XImage *image, int x, int y)
UnlockDisplay(dpy);
SyncHandle();
return (True);
return True;
}
static int x11grab_read_packet(AVFormatContext *s1, AVPacket *pkt)
@ -461,7 +478,7 @@ static int x11grab_read_packet(AVFormatContext *s1, AVPacket *pkt)
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) {
/* printf("grabbing is %d frames late (dropping)\n", (int) -(delay / 16666)); */
av_log(s1, AV_LOG_DEBUG, "grabbing is %d frames late (dropping)\n", (int) -(delay / 16666));
s->time_frame += int64_t_C(1000000);
}
break;
@ -471,27 +488,26 @@ static int x11grab_read_packet(AVFormatContext *s1, AVPacket *pkt)
nanosleep(&ts, NULL);
}
if (av_new_packet(pkt, s->frame_size) < 0)
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)) {
fprintf(stderr,"XShmGetImage() failed\n");
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");
}
}
else {
XGetZPixmap(dpy,
RootWindow(dpy, DefaultScreen(dpy)),
image, x_off, y_off);
};
{
int pointer_x, pointer_y;
getCurrentPointer(s, &pointer_x, &pointer_y);
paintMousePointer(s, &pointer_x, &pointer_y, image);
getCurrentPointer(s1, s, &pointer_x, &pointer_y);
paintMousePointer(s1, s, &pointer_x, &pointer_y, image);
}
#warning FIXME - avoid memcpy
@ -502,14 +518,14 @@ static int x11grab_read_packet(AVFormatContext *s1, AVPacket *pkt)
static int x11grab_read_close(AVFormatContext *s1)
{
X11Grab *x11grab = s1->priv_data;
XCloseDisplay(x11grab->dpy);
return 0;
}
AVInputFormat x11_grab_device_demuxer = {
AVInputFormat x11_grab_device_demuxer =
{
"x11grab",
"X11grab",
"X11 frame graber",
sizeof(X11Grab),
NULL,
x11grab_read_header,