RFC 3&4 stage: FFmpeg style aint't my style
authorGuillaume Poirier <gpoirier@mplayerhq.hu>
Tue, 12 Dec 2006 22:32:08 +0000 (22:32 +0000)
committerGuillaume Poirier <gpoirier@mplayerhq.hu>
Tue, 12 Dec 2006 22:32:08 +0000 (22:32 +0000)
- Tabs are 4 width
- No tabs allowed

Originally committed as revision 7297 to svn://svn.ffmpeg.org/ffmpeg/trunk

libavformat/x11grab.c

index 8572968..29b238b 100644 (file)
@@ -8,7 +8,7 @@
  *                    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;
+        }
+    }
 }