/********************************************************************************* * recordMyDesktop * ********************************************************************************** * * * Copyright (C) 2006 John Varouhakis * * * * * * This program 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. * * * * This program 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 this program; if not, write to the Free Software * * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA * * * * * * * * For further information contact me at biocrasher@gmail.com * **********************************************************************************/ #ifndef RECORDMYDESKTOP_H #define RECORDMYDESKTOP_H 1 #ifdef HAVE_CONFIG_H #include #endif #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include enum {UNSPECIFIED,OGG_THEORA_VORBIS}; /**Structs*/ typedef struct _DisplaySpecs{ //this struct holds some basic information int screen; //about the display,needed mostly for uint width; //validity checks at startup uint height; Window root; Visual *visual; GC gc; int depth; unsigned long bpixel; unsigned long wpixel; }DisplaySpecs; typedef struct _WGeometry{ //basic geometry of a window or area int x; int y; int width; int height; }WGeometry; typedef struct _RectArea{ //an area that has been damaged gets stored WGeometry geom; //in a list comprised of structs of this type struct _RectArea *prev,*next; }RectArea; typedef struct _BRWindow{ //a window to be recorded specs WGeometry geom; //window attributes WGeometry rgeom; //part of window that is recorded int nbytes; //size of zpixmap when screenshoting Window windowid; //id }BRWindow; typedef struct _ProgArgs{ int delay; //start up delay Window windowid; //window to record(default root) char *display; //display to connect(default :0) int x,y; //x,y offset(default 0,0) int width,height; //defaults to window width and height int quietmode; //no messages to stderr,stdout char *filename; //output file(default out.[ogg|*]) int encoding; //encoding(default OGG_THEORA_VORBIS) int cursor_color; //black or white=>1 or 0 int have_dummy_cursor;//disable/enable drawing the dummy cursor float fps; //desired framerate(default 15) unsigned int frequency; //desired frequency (default 22050) unsigned int channels; //no of channels(default 2) char *device; //default sound device(default according to alsa or oss) int nosound; //do not record sound(default 0) int noshared; //do not use shared memory extension(default disabled) int full_shots; //do not poll damage, take full screenshots int scshot; //take screenshot and exit(default 0) int scale_shot; //screenshot subscale factor(default 1) int v_bitrate,v_quality,s_quality;//video bitrate,video-sound quality int dropframes; //option for theora encoder }ProgArgs; //this struct will hold anything related to encoding AND //writting out to file. //**TODO add vorbis specifics*/ typedef struct _EncData{ ogg_stream_state m_ogg_ts;//theora ogg_stream_state m_ogg_vs;//vorbis ogg_page m_ogg_pg; ogg_packet m_ogg_pckt1; ogg_packet m_ogg_pckt2; theora_state m_th_st; theora_info m_th_inf; theora_comment m_th_cmmnt; yuv_buffer yuv; vorbis_info m_vo_inf; vorbis_comment m_vo_cmmnt; vorbis_dsp_state m_vo_dsp; vorbis_block m_vo_block; int x_offset, y_offset; FILE *fp; }EncData; typedef struct _SndBuffer{ signed char *data; struct _SndBuffer *next; }SndBuffer; //this structure holds any data related to the program //It's usage is mostly to be given as an argument to the //threads,so they will have access to the program data, avoiding //at the same time usage of any globals. typedef struct _ProgData{ ProgArgs args;//the program arguments DisplaySpecs specs;//Display specific information BRWindow brwin;//recording window Display *dpy;//curtrent display XImage *image;//the image that holds the current full screenshot unsigned char *dummy_pointer;//a dummy pointer to be drawn in every frame //data is casted to unsigned for later use in YUV buffer int dummy_p_size;//initially 16x16,always square unsigned char npxl;//this is the no pixel convention when drawing the dummy pointer char *datamain,//the data of the image above *datatemp;//buffer for the temporary image,which will be //preallocated in case shared memory is not used. RectArea *rect_root[2];//the interchanging list roots for storing the changed regions int list_selector,//selector for the above damage_event,//damage event base code damage_error,//damage error base code running; SndBuffer *sound_buffer; EncData *enc_data; int hard_pause;//if sound device doesn't support pause //we have to close and reopen int avd;//syncronization among audio and video unsigned int periodtime, frametime; pthread_mutex_t list_mutex[2],//mutexes for concurrency protection of the lists sound_buffer_mutex, yuv_mutex; pthread_cond_t time_cond,//this gets a broadcast by the handler whenever it's time to get a screenshot pause_cond,//this is blocks execution, when program is paused sound_buffer_ready,//sound encoding finished sound_data_read,//a buffer is ready for proccessing image_buffer_ready;//image encoding finished snd_pcm_t *sound_handle; snd_pcm_uframes_t periodsize; }ProgData; /**Globals*/ //I've read somewhere that I'll go to hell for using globals... int Paused,*Running,Aborted; pthread_cond_t *time_cond,*pause_cond; /**Macros*/ #define CLIP_EVENT_AREA(e,brwin,wgeom){\ if(((e)->area.x<=(brwin)->rgeom.x)&&((e)->area.y<=(brwin)->rgeom.y)&&\ ((e)->area.width>=(brwin)->rgeom.width)&&((e)->area.height<(brwin)->rgeom.height)){\ (wgeom)->x=(brwin)->rgeom.x;\ (wgeom)->y=(brwin)->rgeom.y;\ (wgeom)->width=(brwin)->rgeom.width;\ (wgeom)->height=(brwin)->rgeom.height;\ }\ else{\ (wgeom)->x=((((e)->area.x+(e)->area.width>=(brwin)->rgeom.x)&&\ ((e)->area.x<=(brwin)->rgeom.x+(brwin)->rgeom.width))?\ (((e)->area.x<=(brwin)->rgeom.x)?(brwin)->rgeom.x:(e)->area.x):-1);\ \ (wgeom)->y=((((e)->area.y+(e)->area.height>=(brwin)->rgeom.y)&&\ ((e)->area.y<=(brwin)->rgeom.y+(brwin)->rgeom.height))?\ (((e)->area.y<=(brwin)->rgeom.y)?(brwin)->rgeom.y:(e)->area.y):-1);\ \ (wgeom)->width=((e)->area.x<=(brwin)->rgeom.x)?\ (e)->area.width-((brwin)->rgeom.x-(e)->area.x):\ ((e)->area.x<=(brwin)->rgeom.x+(brwin)->rgeom.width)?\ (((brwin)->rgeom.width-(e)->area.x+(brwin)->rgeom.x<(e)->area.width)?\ (brwin)->rgeom.width-(e)->area.x+(brwin)->rgeom.x:e->area.width):-1;\ \ (wgeom)->height=((e)->area.y<=(brwin)->rgeom.y)?\ (e)->area.height-((brwin)->rgeom.y-(e)->area.y):\ ((e)->area.y<=(brwin)->rgeom.y+(brwin)->rgeom.height)?\ (((brwin)->rgeom.height-(e)->area.y+(brwin)->rgeom.y<(e)->area.height)?\ (brwin)->rgeom.height-(e)->area.y+(brwin)->rgeom.y:(e)->area.height):-1;\ \ if((wgeom)->width>(brwin)->rgeom.width)(wgeom)->width=(brwin)->rgeom.width;\ if((wgeom)->height>(brwin)->rgeom.height)(wgeom)->height=(brwin)->rgeom.height;\ }\ } #define CLIP_DUMMY_POINTER_AREA(dummy_p_area,brwin,wgeom){\ (wgeom)->x=((((dummy_p_area).x+(dummy_p_area).width>=(brwin)->rgeom.x)&&\ ((dummy_p_area).x<=(brwin)->rgeom.x+(brwin)->rgeom.width))?\ (((dummy_p_area).x<=(brwin)->rgeom.x)?(brwin)->rgeom.x:(dummy_p_area).x):-1);\ (wgeom)->y=((((dummy_p_area).y+(dummy_p_area).height>=(brwin)->rgeom.y)&&\ ((dummy_p_area).y<=(brwin)->rgeom.y+(brwin)->rgeom.height))?\ (((dummy_p_area).y<=(brwin)->rgeom.y)?(brwin)->rgeom.y:(dummy_p_area).y):-1);\ (wgeom)->width=((dummy_p_area).x<=(brwin)->rgeom.x)?\ (dummy_p_area).width-((brwin)->rgeom.x-(dummy_p_area).x):\ ((dummy_p_area).x<=(brwin)->rgeom.x+(brwin)->rgeom.width)?\ ((brwin)->rgeom.width-(dummy_p_area).x+(brwin)->rgeom.x<(dummy_p_area).width)?\ (brwin)->rgeom.width-(dummy_p_area).x+(brwin)->rgeom.x:(dummy_p_area).width:-1;\ (wgeom)->height=((dummy_p_area).y<=(brwin)->rgeom.y)?\ (dummy_p_area).height-((brwin)->rgeom.y-(dummy_p_area).y):\ ((dummy_p_area).y<=(brwin)->rgeom.y+(brwin)->rgeom.height)?\ ((brwin)->rgeom.height-(dummy_p_area).y+(brwin)->rgeom.y<(dummy_p_area).height)?\ (brwin)->rgeom.height-(dummy_p_area).y+(brwin)->rgeom.y:(dummy_p_area).height:-1;\ if((wgeom)->width>(brwin)->rgeom.width)(wgeom)->width=(brwin)->rgeom.width;\ if((wgeom)->height>(brwin)->rgeom.height)(wgeom)->height=(brwin)->rgeom.height;\ } #define DEFAULT_ARGS(args){\ (args)->delay=0;\ (args)->display=(char *)malloc(strlen(getenv("DISPLAY"))+1);\ strcpy((args)->display,getenv("DISPLAY"));\ (args)->windowid=(args)->x=(args)->y\ =(args)->width=(args)->height=(args)->quietmode\ =(args)->nosound=(args)->scshot=(args)->full_shots=0;\ (args)->noshared=(args)->scale_shot=1;\ (args)->dropframes=0;\ (args)->filename=(char *)malloc(8);\ strcpy((args)->filename,"out.ogg");\ (args)->encoding=OGG_THEORA_VORBIS;\ (args)->cursor_color=1;\ (args)->have_dummy_cursor=1;\ (args)->device=(char *)malloc(8);\ strcpy((args)->device,"hw:0,0");\ (args)->fps=15;\ (args)->channels=1;\ (args)->frequency=22050;\ (args)->v_bitrate=45000;\ (args)->v_quality=63;\ (args)->s_quality=10;\ } #define QUERY_DISPLAY_SPECS(display,specstruct){\ (specstruct)->screen=DefaultScreen(display);\ (specstruct)->width=DisplayWidth(display,(specstruct)->screen);\ (specstruct)->height=DisplayHeight(display,(specstruct)->screen);\ (specstruct)->root=RootWindow(display,(specstruct)->screen);\ (specstruct)->visual=DefaultVisual(display,(specstruct)->screen);\ (specstruct)->gc=DefaultGC(display,(specstruct)->screen);\ (specstruct)->depth=DefaultDepth(display,(specstruct)->screen);\ (specstruct)->bpixel=XBlackPixel(display,(specstruct)->screen);\ (specstruct)->wpixel=XWhitePixel(display,(specstruct)->screen);\ } #define UPDATE_YUV_BUFFER_SH(yuv,data,x_tm,y_tm,width_tm,height_tm){\ int i,k;\ for(k=y_tm;ky[i+k*yuv->y_width]=min(abs(data[(i+k*yuv->y_width)*4+2] * 2104 + data[(i+k*yuv->y_width)*4+1] * 4130 + data[(i+k*yuv->y_width)*4] * 802 + 4096 + 131072) >> 13, 235);\ if((k%2)&&(i%2)){\ yuv->u[i/2+k/2*yuv->uv_width]=min(abs(data[(i+k*yuv->y_width)*4+2] * -1214 + data[(i+k*yuv->y_width)*4+1] * -2384 + data[(i+k*yuv->y_width)*4] * 3598 + 4096 + 1048576) >> 13, 240);\ yuv->v[i/2+k/2*yuv->uv_width]=min(abs(data[(i+k*yuv->y_width)*4+2] * 3598 + data[(i+k*yuv->y_width)*4+1] * -3013 + data[(i+k*yuv->y_width)*4] * -585 + 4096 + 1048576) >> 13, 240);\ }\ }\ }\ } #define UPDATE_YUV_BUFFER_IM(yuv,data,x_tm,y_tm,width_tm,height_tm){\ int i,k,j=0;\ int x_2=x_tm/2,y_2=y_tm/2,y_width_2=yuv->y_width/2;\ for(k=0;ky[x_tm+i+(k+y_tm)*yuv->y_width]=min(abs(data[(j*4)+2] * 2104 + data[(j*4)+1] * 4130 + data[(j*4)] * 802 + 4096 + 131072) >> 13, 235);\ if((k%2)&&(i%2)){\ yuv->u[x_2+i/2+(k/2+y_2)*y_width_2]=min(abs(data[(k*width_tm+i)*4+2] * -1214 + data[(k*width_tm+i)*4+1] * -2384 + data[(k*width_tm+i)*4] * 3598 + 4096 + 1048576) >> 13, 240);\ yuv->v[x_2+i/2+(k/2+y_2)*y_width_2]=min(abs(data[(k*width_tm+i)*4+2] * 3598 + data[(k*width_tm+i)*4+1] * -3013 + data[(k*width_tm+i)*4] * -585 + 4096 + 1048576) >> 13, 240);\ }\ \ j++;\ }\ }\ } #define DUMMY_POINTER_TO_YUV(yuv,data_tm,x_tm,y_tm,width_tm,height_tm,no_pixel){\ int i,k,j=0;\ int x_2=x_tm/2,y_2=y_tm/2,y_width_2=(yuv)->y_width/2;\ for(k=0;ky[x_tm+i+(k+y_tm)*(yuv)->y_width]=min(abs(data_tm[(j*4)+2] * 2104 + data_tm[(j*4)+1] * 4130 + data_tm[(j*4)] * 802 + 4096 + 131072) >> 13, 235);\ if((k%2)&&(i%2)){\ yuv->u[x_2+i/2+(k/2+y_2)*y_width_2]=min(abs(data_tm[(k*width_tm+i)*4+2] * -1214 + data_tm[(k*width_tm+i)*4+1] * -2384 + data_tm[(k*width_tm+i)*4] * 3598 + 4096 + 1048576) >> 13, 240);\ yuv->v[x_2+i/2+(k/2+y_2)*y_width_2]=min(abs(data_tm[(k*width_tm+i)*4+2] * 3598 + data_tm[(k*width_tm+i)*4+1] * -3013 + data_tm[(k*width_tm+i)*4] * -585 + 4096 + 1048576) >> 13, 240);\ }\ }\ j++;\ }\ j+=16-width_tm;\ }\ } /**Function prototypes*/ void *PollDamage(void *pdata); void *GetFrame(void *pdata); void *EncodeImageBuffer(void *pdata); void *FlushToOgg(void *pdata); void UpdateYUVBuffer(yuv_buffer *yuv,unsigned char *data,int x,int y,int width,int height); void ClearList(RectArea **root); int RectInsert(RectArea **root,WGeometry *wgeom); int CollideRects(WGeometry *wgeom1,WGeometry *wgeom2,WGeometry **wgeom_return,int *ngeoms); void SetExpired(int signum); void RegisterCallbacks(ProgArgs *args); void UpdateImage(Display * dpy,yuv_buffer *yuv,pthread_mutex_t *yuv_mutex,DisplaySpecs *specs,RectArea **root,BRWindow *brwin,EncData *enc,char *datatemp,int noshmem); void XImageToYUV(XImage *imgz,yuv_buffer *yuv); int GetZPixmap(Display *dpy,Window root,char *data,int x,int y,int width,int height); int ParseArgs(int argc,char **argv,ProgArgs *arg_return); int QueryExtensions(Display *dpy,ProgArgs *args,int *damage_event,int *damage_error); int SetBRWindow(Display *dpy,BRWindow *brwin,DisplaySpecs *specs,ProgArgs *args); int ZPixmapToBMP(XImage *imgz,BRWindow *brwin,char *fname,int nbytes,int scale); unsigned char *MakeDummyPointer(DisplaySpecs *specs,int size,int color,int type,unsigned char *npxl); void UpdateYUVBufferSh(yuv_buffer *yuv,unsigned char *data,int x,int y,int width,int height); void UpdateYUVBufferIm(yuv_buffer *yuv,unsigned char *data,int x,int y,int width,int height); void *CaptureSound(void *pdata); void *EncodeSoundBuffer(void *pdata); snd_pcm_t *OpenDev(const char *pcm_dev,unsigned int channels,unsigned int *frequency,snd_pcm_uframes_t *periodsize,unsigned int *periodtime,int *hardpause); void InitEncoder(ProgData *pdata,EncData *enc_data_t); #endif