只要你装对了东西 这程序保证能用。
文件server.cpp中的程序代码
#include
#include
#include
#include
#include
#include
#include
#include
#include
#include
#include
#include
#include
#include
#include
#include
#include "jrtplib3/rtpsession.h"
#include "jrtplib3/rtppacket.h"
#include "jrtplib3/rtpudpv4transmitter.h"
#include "jrtplib3/rtpipv4address.h"
#include "jrtplib3/rtpsessionparams.h"
#include "jrtplib3/rtperrors.h"
#include
#include "cxvid.h"
#include "tcp.h"
#define OUTFRMNUMB 4
static int XDIM=320,YDIM=240;
uint8_t localip[] = { 202, 194, 26, 67 };
#define Packetfixlength 7000
#define frameheadfixlength 50
RTPTime delay (0.0001);
int status;
int nread;
RTPSession session;
RTPSessionParams sessionparams;
RTPUDPv4TransmissionParams transparams;
int sendpacket (unsigned char *framepointer, int framelength);
struct frame_t{
char header[5];
int nbframe;
double seqtimes;
int deltatimes;
int w;
int h;
int size;
int format;
unsigned short bright;
unsigned short contrast;
unsigned short colors;
unsigned short exposure;
unsigned char wakeup;
int acknowledge;
} __attribute__ ((packed));
struct vdIn {
int fd;
char *videodevice ;
struct video_mmap vmmap;
struct video_capability videocap;
int mmapsize;
struct video_mbuf videombuf;
struct video_picture videopict;
struct video_window videowin;
struct video_channel videochan;
int cameratype ;
char *cameraname;
char bridge[9];
int palette; // available palette
int channel ; int grabMethod ;
unsigned char *pFramebuffer;
unsigned char *ptframe[4];
int framelock[4];
pthread_mutex_t grabmutex;
int framesizeIn ;
volatile int frame_cour;
int bppIn;
int hdrwidth;
int hdrheight;
int formatIn;
int signalquit;
};
struct vdIn videoIn;
int init_v4l (struct vdIn *vd);
static int SetVideoPict (struct vdIn *vd);
static int GetVideoPict (struct vdIn *vd);
int close_v4l (struct vdIn *vd);
int init_videoIn (struct vdIn *vd, char *device, int width, int height,int format ,int grabmethod);
int v4lGrab (struct vdIn *vd );
void *grab (void *);
void *service (void *ir);
void sigchld_handler(int s);
int main ()
{
char *videodevice = "/dev/video0";
int err;
int grabmethod = 1;
int width = 320;
int height = 240;
int i;
int serv_sock,new_sock;
pthread_t w1;
pthread_t server_th;
int sin_size;
unsigned short serverport = 7070;
struct sockaddr_in their_addr;
struct sigaction sa;
sessionparams.SetOwnTimestampUnit (1 / 90000);
sessionparams.SetAcceptOwnPackets (true);
sessionparams.SetMaximumPacketSize (10000);
transparams.SetPortbase (8000);
status = session.Create (sessionparams, &transparams);
if (status < 0)
{
exit (-1);
}
RTPIPv4Address addr (localip, 7000);
status = session.AddDestination (addr);
if (status < 0)
{
exit (-1);
}
memset (&videoIn, 0, sizeof (struct vdIn));
if (init_videoIn
(&videoIn, videodevice, width, height, VIDEO_PALETTE_YUV420P,grabmethod) != 0)
printf (" damned encore rate !!\n");
if((err= pthread_create (&w1, NULL,grab, NULL)) != 0){
printf("thread grabbing error %d \n",err);
close_v4l (&videoIn);
exit(1);
}
serv_sock = open_sock(serverport);
signal(SIGPIPE, SIG_IGN); /* Ignore sigpipe */
sa.sa_handler = sigchld_handler;
sigemptyset(&sa.sa_mask);
sa.sa_flags = SA_RESTART;
syslog(LOG_ERR," server Listening on Port %d\n",serverport);
printf("Waiting .... for connection. CTrl_c to stop !!!! \n");
while (videoIn.signalquit)
{
sin_size = sizeof(struct sockaddr_in);
if ((new_sock = accept(serv_sock, (struct sockaddr *)&their_addr, (size_t *)&sin_size)) == -1)
{
continue;
}
syslog(LOG_ERR,"Got connection from %s\n",inet_ntoa(their_addr.sin_addr));
printf("Got connection from %s\n",inet_ntoa(their_addr.sin_addr));
pthread_create(&server_th, NULL, service, &new_sock);
}
pthread_join (w1, NULL);
close(serv_sock);
close_v4l (&videoIn);
}
void
*grab (void*)
{
int err = 0;
for (;;)
{
err = v4lGrab(&videoIn);
if (!videoIn.signalquit || (err < 0)){
printf("GRABBER going out !!!!! \n");
break;
}
}
}
void
*service (void *ir)
{
int *id = (int*) ir;
int frameout = 1;
struct frame_t *headerframe;
int ret;
int sock;
int framecount=0;
int retsize=0;
int ack = 0;
unsigned char x = 0;
unsigned char y = 0;
int err;
unsigned char wakeup = 0;
unsigned char cmd = 0;
unsigned short bright;
unsigned short contrast;
sock = *id;
for (;;)
{
ack =1;
redo:
while ((frameout == videoIn.frame_cour) && videoIn.signalquit) usleep(1000);
if (videoIn.signalquit){
videoIn.framelock[frameout]++;
headerframe = (struct frame_t *) videoIn.ptframe[frameout];
headerframe->acknowledge = ack;
headerframe->bright = bright;
headerframe->contrast = contrast;
headerframe->wakeup = wakeup;
if(headerframe->size == 0){
// frame corrupt get another one
videoIn.framelock[frameout]--;
frameout = (frameout+1)% OUTFRMNUMB;
goto redo;
}
ret=sendpacket((unsigned char *)headerframe,sizeof(struct frame_t));
printf("\n sock send out");
if(!wakeup)
{
printf("\nthe packat is %d",headerframe->size);
ret=sendpacket((unsigned char*)(videoIn.ptframe[frameout]+sizeof(struct frame_t)),headerframe->size);
}
videoIn.framelock[frameout]--;
frameout = (frameout+1)% OUTFRMNUMB;
} else {
printf("reader %d going out \n",*id);
break;
}
}
close_sock(sock);
pthread_exit(NULL);
}
void sigchld_handler(int s)
{
videoIn.signalquit = 0;
}
int
init_videoIn (struct vdIn *vd, char *device, int width, int height,
int format, int grabmethod)
{
int err = -1;
int i;
if (vd == NULL || device == NULL)
return -1;
if (width == 0 || height == 0)
return -1;
if(grabmethod < 0 || grabmethod > 1)
grabmethod = 1; //read by default;
// check format
vd->videodevice = NULL;
vd->cameraname = NULL;
vd->videodevice = NULL;
vd->videodevice = (char *) realloc (vd->videodevice, 16);
vd->cameraname = (char *) realloc (vd->cameraname, 32);
snprintf (vd->videodevice, 12, "%s", device);
printf("video %s \n",vd->videodevice);
memset (vd->cameraname, 0, sizeof (vd->cameraname));
memset(vd->bridge, 0, sizeof(vd->bridge));
vd->signalquit = 1;
vd->hdrwidth = width;
vd->hdrheight = height;
/* compute the max frame size */
vd->formatIn = format;
vd->bppIn = (8 * 3) >> 1;
vd->grabMethod = grabmethod; //mmap or read
vd->pFramebuffer = NULL;
/* init and check all setting */
err = init_v4l (vd);
/* allocate the 4 frames output buffer */
for (i = 0; i < OUTFRMNUMB; i++)
{
vd->ptframe[i] = NULL;
vd->ptframe[i] =
(unsigned char *) realloc (vd->ptframe[i], sizeof(struct frame_t) + (size_t) vd->framesizeIn );
vd->framelock[i] = 0;
}
vd->frame_cour = 0;
pthread_mutex_init (&vd->grabmutex, NULL);
return err;
}
static int
GetVideoPict (struct vdIn *vd)
{
if (ioctl (vd->fd, VIDIOCGPICT, &vd->videopict) < 0)
exit(1);
printf ("VIDIOCGPICT brightnes=%d hue=%d color=%d contrast=%d whiteness=%d"
"depth=%d palette=%d\n", vd->videopict.brightness,
vd->videopict.hue, vd->videopict.colour, vd->videopict.contrast,
vd->videopict.whiteness, vd->videopict.depth,
vd->videopict.palette);
return 0;
}
int
init_v4l (struct vdIn *vd)
{
int f;
int erreur = 0;
int err;
if ((vd->fd = open (vd->videodevice, O_RDWR)) == -1)
exit(1);
if (ioctl (vd->fd, VIDIOCGCAP, &(vd->videocap)) == -1)
exit(1);
printf ("Camera found: %s \n", vd->videocap.name);
snprintf (vd->cameraname, 32, "%s", vd->videocap.name);
erreur = GetVideoPict (vd);
if (ioctl (vd->fd, VIDIOCGCHAN, &vd->videochan) == -1)
{
printf ("Hmm did not support Video_channel\n");
vd->cameratype = UNOW;
}
else
{
if (vd->videochan.name){
printf ("Bridge found: %s \n", vd->videochan.name);
snprintf (vd->bridge, 9, "%s", vd->videochan.name);
}
else
{
vd->cameratype = UNOW;
}
}
printf ("StreamId: %d Camera\n", vd->cameratype);
printf (" Format asked %d check %d\n",vd->formatIn, err);
vd->videopict.palette = vd->formatIn;
vd->videopict.depth = (8 * 3) >> 1;
vd->bppIn = (8 * 3) >> 1;
vd->framesizeIn = (vd->hdrwidth * vd->hdrheight * vd->bppIn) >> 3;
erreur = SetVideoPict (vd);
erreur = GetVideoPict (vd);
if (vd->formatIn != vd->videopict.palette ||
vd->bppIn != vd->videopict.depth)
exit(1);
if (erreur < 0)
exit(1);
printf (" grabbing method default MMAP asked \n");
// MMAP VIDEO acquisition
memset (&(vd->videombuf), 0, sizeof (vd->videombuf));
if (ioctl (vd->fd, VIDIOCGMBUF, &(vd->videombuf)) < 0)
{
perror (" init VIDIOCGMBUF FAILED\n");
}
printf ("VIDIOCGMBUF size %d frames %d offets[0]=%d offsets[1]=%d\n",
vd->videombuf.size, vd->videombuf.frames,
vd->videombuf.offsets[0], vd->videombuf.offsets[1]);
vd->pFramebuffer =
(unsigned char *) mmap (0, vd->videombuf.size, PROT_READ | PROT_WRITE,
MAP_SHARED, vd->fd, 0);
vd->mmapsize = vd->videombuf.size;
vd->vmmap.height = vd->hdrheight;
vd->vmmap.width = vd->hdrwidth;
vd->vmmap.format = vd->formatIn;
for (f = 0; f < vd->videombuf.frames; f++)
{
vd->vmmap.frame = f;
if (ioctl (vd->fd, VIDIOCMCAPTURE, &(vd->vmmap)))
{
perror ("cmcapture");
}
}
vd->vmmap.frame = 0;
vd->frame_cour = 0;
return erreur;
}
int
v4lGrab (struct vdIn *vd )
{
static int frame = 0;
int len;
int status;
int count = 0;
int size;
int erreur = 0;
int m4vsize = 0;
int qualite = 1024;
struct frame_t *headerframe;
double timecourant =0;
double temps = 0;
/******XVID****/
unsigned char *mp4_buffer = NULL;
unsigned char *in_buffer = NULL;
int key;
int stats_type;
int stats_quant;
int stats_length;
int sse[3];
int enc_result;
int input_num;
/******************/
vd->vmmap.height = vd->hdrheight;
vd->vmmap.width = vd->hdrwidth;
vd->vmmap.format = vd->formatIn;
if (ioctl (vd->fd, VIDIOCSYNC,&vd->vmmap.frame) < 0)
{
perror ("cvsync err\n");
erreur = -1;
}
/* Is there someone using the frame */
while((vd->framelock[vd->frame_cour] != 0) && vd->signalquit)
usleep(1000);
pthread_mutex_lock (&vd->grabmutex);
/********************************XVID******************************************/
in_buffer = (unsigned char *) malloc(IMAGE_SIZE(XDIM, YDIM));
if (!in_buffer)
{printf("in_buffer err!");
goto free_all_memory;}
mp4_buffer = (unsigned char *) malloc(IMAGE_SIZE(XDIM, YDIM) * 2);
if (mp4_buffer==NULL)
{
fprintf(stderr,"malloc error");
goto free_all_memory;
}
enc_result = enc_init(1);
if (enc_result) {
fprintf(stderr, "Encore INIT problem, return value %d\n", enc_result);
goto release_all;
}
memcpy(in_buffer,vd->pFramebuffer + vd->videombuf.offsets[vd->vmmap.frame],IMAGE_SIZE(XDIM, YDIM));
printf("the framesize is %d",IMAGE_SIZE(XDIM, YDIM));
m4vsize=enc_main((uint8_t *)in_buffer,
mp4_buffer,&key, &stats_type,&stats_quant, &stats_length, sse);
printf("the m4vsize is %d!!!!\n\n",m4vsize);
memcpy(vd->ptframe[vd->frame_cour]+ sizeof(struct frame_t),mp4_buffer,m4vsize);
/****************************************************************************/
headerframe=(struct frame_t*)vd->ptframe[vd->frame_cour];
snprintf(headerframe->header,5,"%s","SPCA");
headerframe->deltatimes=(int)(headerframe->seqtimes-timecourant);
headerframe->w = vd->hdrwidth;
headerframe->h = vd->hdrheight;
headerframe->size = (( m4vsize < 0)?0:m4vsize);
headerframe->format = vd->formatIn;
headerframe->nbframe = frame++;
pthread_mutex_unlock (&vd->grabmutex);
/************************************/
if ((ioctl (vd->fd, VIDIOCMCAPTURE, &(vd->vmmap))) < 0)
{
perror ("cmcapture");
printf (">>cmcapture err %d\n", status);
erreur = -1;
}
vd->vmmap.frame = (vd->vmmap.frame + 1) % vd->videombuf.frames;
vd->frame_cour = (vd->frame_cour +1) % OUTFRMNUMB;
//printf("frame nb %d\n",vd->vmmap.frame);
release_all:
if (enc_handle) {
enc_result = enc_stop();
if (enc_result)
fprintf(stderr, "Encore RELEASE problem return value %d\n",
enc_result);
}
free_all_memory:
printf("free the mem");
free(mp4_buffer);
free(in_buffer);
return erreur;
}
static int
SetVideoPict (struct vdIn *vd)
{
if (ioctl (vd->fd, VIDIOCSPICT, &vd->videopict) < 0)
exit(1);
printf ("VIDIOCSPICT brightnes=%d hue=%d color=%d contrast=%d whiteness=%d"
"depth=%d palette=%d\n", vd->videopict.brightness,
vd->videopict.hue, vd->videopict.colour, vd->videopict.contrast,
vd->videopict.whiteness, vd->videopict.depth,
vd->videopict.palette);
return 0;
}
int
close_v4l (struct vdIn *vd)
{
int i;
printf ("unmapping frame buffer\n");
munmap (vd->pFramebuffer, vd->mmapsize);
printf ("close video_device\n");
close (vd->fd);
if (vd->videodevice)
{
free (vd->videodevice);
vd->videodevice = NULL;
}
if (vd->cameraname)
{
free (vd->cameraname);
vd->cameraname = NULL;
}
for (i = 0; i < OUTFRMNUMB; i++)
{
if (vd->ptframe[i])
{
free (vd->ptframe[i]);
vd->ptframe[i] = NULL;
vd->framelock[i] = 0;
printf ("freeing output buffer %d\n",i);
}
}
pthread_mutex_destroy (&vd->grabmutex);
}
int sendpacket ( unsigned char *framepointer, int framelength)
{
bool done = false;
while (!done)
{
if (framelength > Packetfixlength)
{
framelength -= Packetfixlength;
nread = Packetfixlength;
}
else
{
nread = framelength;
framelength = 0;
}
if (nread!=frameheadfixlength&&framelength==0)
{status = session.SendPacket(framepointer, nread,26,1,1000);}
else {status = session.SendPacket(framepointer, nread,26,0,1000);}
if (status < 0)
{
exit (-1);
}
RTPTime::Wait (delay);
framepointer += Packetfixlength;
printf("%d",nread);
if (framelength == 0)
return (10);
}
}
文件cxvid.h中的程序代码
#define FRAMERATE_INCR 1001
#define SMALL_EPS (1e-10)
#define IMAGE_SIZE(x,y) ((x)*(y)*3/2)
#define UNOW 1
#define WIDTH 352
#define HEIGHT 288
#define BPPIN 8
void *enc_handle = NULL;
int enc_init(int use_assembler);
int enc_main(unsigned char *image,
unsigned char *bitstream,
int *key,
int *stats_type,
int *stats_quant,
int *stats_length,
int stats[3]);
int enc_stop();
文件cxvid.c文件的程序代码
#include
#include
#include
#include
#include "xvid.h"
#define FRAMERATE_INCR 1001
#define SMALL_EPS (1e-10)
#define IMAGE_SIZE(x,y) ((x)*(y)*3/2)
#define UNOW 1
#define WIDTH 352
#define HEIGHT 288
#define BPPIN 8
static float ARG_FRAMERATE = 25.00f;
static int ARG_QUALITY = 4;
static int ARG_MAXKEYINTERVAL = 250;
static int use_assembler = 0;
static void *enc_handle = NULL;
static const int motion_presets[] = {
/* quality 0 */
0,
/* quality 1 */
XVID_ME_ADVANCEDDIAMOND16,
/* quality 2 */
XVID_ME_ADVANCEDDIAMOND16 | XVID_ME_HALFPELREFINE16,
/* quality 3 */
XVID_ME_ADVANCEDDIAMOND16 | XVID_ME_HALFPELREFINE16 |
XVID_ME_ADVANCEDDIAMOND8 | XVID_ME_HALFPELREFINE8,
/* quality 4 */
XVID_ME_ADVANCEDDIAMOND16 | XVID_ME_HALFPELREFINE16 |
XVID_ME_ADVANCEDDIAMOND8 | XVID_ME_HALFPELREFINE8 |
XVID_ME_CHROMA_PVOP | XVID_ME_CHROMA_BVOP,
/* quality 5 */
XVID_ME_ADVANCEDDIAMOND16 | XVID_ME_HALFPELREFINE16 |
XVID_ME_ADVANCEDDIAMOND8 | XVID_ME_HALFPELREFINE8 |
XVID_ME_CHROMA_PVOP | XVID_ME_CHROMA_BVOP,
/* quality 6 */
XVID_ME_ADVANCEDDIAMOND16 | XVID_ME_HALFPELREFINE16 | XVID_ME_EXTSEARCH16 |
XVID_ME_ADVANCEDDIAMOND8 | XVID_ME_HALFPELREFINE8 | XVID_ME_EXTSEARCH8 |
XVID_ME_CHROMA_PVOP | XVID_ME_CHROMA_BVOP,
};
static const int vop_presets[] = {
/* quality 0 */
0,
/* quality 1 */
0,
/* quality 2 */
XVID_VOP_HALFPEL,
/* quality 3 */
XVID_VOP_HALFPEL | XVID_VOP_INTER4V,
/* quality 4 */
XVID_VOP_HALFPEL | XVID_VOP_INTER4V,
/* quality 5 */
XVID_VOP_HALFPEL | XVID_VOP_INTER4V |
XVID_VOP_TRELLISQUANT,
/* quality 6 */
XVID_VOP_HALFPEL | XVID_VOP_INTER4V |
XVID_VOP_TRELLISQUANT | XVID_VOP_HQACPRED,
};
static int XDIM=320,YDIM=240;
int
enc_init(int use_assembler)
{
int xerr;
xvid_plugin_single_t single;
xvid_plugin_2pass1_t rc2pass1;
xvid_plugin_2pass2_t rc2pass2;
xvid_enc_plugin_t plugins[7];
xvid_gbl_init_t xvid_gbl_init;
xvid_enc_create_t xvid_enc_create;
/*------------------------------------------------------------------------
* XviD core initialization
*----------------------------------------------------------------------*/
/* Set version -- version checking will done by xvidcore */
memset(&xvid_gbl_init, 0, sizeof(xvid_gbl_init));
xvid_gbl_init.version = XVID_VERSION;
xvid_gbl_init.debug = 0;
/* Do we have to enable ASM optimizations ? */
if (use_assembler) {
xvid_gbl_init.cpu_flags = 0;
}
/* Initialize XviD core -- Should be done once per __process__ */
xvid_global(NULL, XVID_GBL_INIT, &xvid_gbl_init, NULL);
/*------------------------------------------------------------------------
* XviD encoder initialization
*----------------------------------------------------------------------*/
/* Version again */
memset(&xvid_enc_create, 0, sizeof(xvid_enc_create));
xvid_enc_create.version = XVID_VERSION;
/* Width and Height of input frames */
xvid_enc_create.width = XDIM;
xvid_enc_create.height = YDIM;
xvid_enc_create.profile = XVID_PROFILE_S_L3;
/* init plugins */
xvid_enc_create.zones = NULL;
xvid_enc_create.num_zones = 0;
xvid_enc_create.plugins = NULL;
xvid_enc_create.num_plugins = 0;
/* No fancy thread tests */
xvid_enc_create.num_threads = 0;
/* Frame rate - Do some quick float fps = fincr/fbase hack */
if ((ARG_FRAMERATE - (int) ARG_FRAMERATE) < SMALL_EPS) {
xvid_enc_create.fincr = 1;
xvid_enc_create.fbase = (int) ARG_FRAMERATE;
} else {
xvid_enc_create.fincr = FRAMERATE_INCR;
xvid_enc_create.fbase = (int) (FRAMERATE_INCR * ARG_FRAMERATE);
}
/* Maximum key frame interval */
if (ARG_MAXKEYINTERVAL > 0) {
xvid_enc_create.max_key_interval = ARG_MAXKEYINTERVAL;
}else {
xvid_enc_create.max_key_interval = (int) ARG_FRAMERATE *10;
}
/* Bframes settings */
xvid_enc_create.max_bframes = 0;
xvid_enc_create.bquant_ratio = 150;
xvid_enc_create.bquant_offset = 100;
/* Dropping ratio frame -- we don't need that */
xvid_enc_create.frame_drop_ratio = 0;
/* Global encoder options */
xvid_enc_create.global = 0;
/* I use a small value here, since will not encode whole movies, but short clips */
xerr = xvid_encore(NULL, XVID_ENC_CREATE, &xvid_enc_create, NULL);
/* Retrieve the encoder instance from the structure */
enc_handle = xvid_enc_create.handle;
return (xerr);
}
int
enc_main(unsigned char *image,
unsigned char *bitstream,
int *key,
int *stats_type,
int *stats_quant,
int *stats_length,
int sse[3])
{
int ret;
xvid_enc_frame_t xvid_enc_frame;
xvid_enc_stats_t xvid_enc_stats;
/* Version for the frame and the stats */
memset(&xvid_enc_frame, 0, sizeof(xvid_enc_frame));
xvid_enc_frame.version = XVID_VERSION;
memset(&xvid_enc_stats, 0, sizeof(xvid_enc_stats));
xvid_enc_stats.version = XVID_VERSION;
/* Bind output buffer */
xvid_enc_frame.bitstream = bitstream;
xvid_enc_frame.length = -1;
/* Initialize input image fields */
if (image) {
xvid_enc_frame.input.plane[0] = image;
xvid_enc_frame.input.csp = XVID_CSP_I420;
xvid_enc_frame.input.stride[0] = XDIM;
} else {
xvid_enc_frame.input.csp = XVID_CSP_NULL;
}
/* Set up core's general features */
xvid_enc_frame.vol_flags = 0;
/* Set up core's general features */
xvid_enc_frame.vop_flags = vop_presets[ARG_QUALITY];
/* Frame type -- let core decide for us */
xvid_enc_frame.type = XVID_TYPE_AUTO;
/* Force the right quantizer -- It is internally managed by RC plugins */
xvid_enc_frame.quant = 3;
/* Set up motion estimation flags */
xvid_enc_frame.motion = motion_presets[ARG_QUALITY];
/* We don't use special matrices */
xvid_enc_frame.quant_intra_matrix = NULL;
xvid_enc_frame.quant_inter_matrix = NULL;
/* Encode the frame */
ret = xvid_encore(enc_handle, XVID_ENC_ENCODE, &xvid_enc_frame,
&xvid_enc_stats);
*key = (xvid_enc_frame.out_flags & XVID_KEYFRAME);
*stats_type = xvid_enc_stats.type;
*stats_quant = xvid_enc_stats.quant;
*stats_length = xvid_enc_stats.length;
sse[0] = xvid_enc_stats.sse_y;
sse[1] = xvid_enc_stats.sse_u;
sse[2] = xvid_enc_stats.sse_v;
return (ret);
}
int
enc_stop()
{
int xerr;
/* Destroy the encoder instance */
xerr = xvid_encore(enc_handle, XVID_ENC_DESTROY, NULL, NULL);
return (xerr);
}
文件tcp.h中的程序代码
static void
initaddr (struct sockaddr_in *servadrr,char *address,int port);
int
open_sock (int port);
void
close_sock (int sockhandle);
文件tcp.c中的程序代码
#include
#include
#include
#include
#include
#include
#include
#include
#include
#include
#define MAXCONNECT 5
static void
initaddr (struct sockaddr_in *servadrr,char *address,int port)
{
int adrsize = 0;
if(address){
adrsize = strlen(address);
if(adrsize < 7 || adrsize > 15)
exit(1);
servadrr->sin_addr.s_addr = inet_addr(address);
} else {
servadrr->sin_addr.s_addr = INADDR_ANY;
}
servadrr->sin_family = AF_INET;
servadrr->sin_port = htons (port);
memset (&(servadrr->sin_zero), '\0', 8);
}
int
open_sock (int port)
{
struct sockaddr_in servadr;
int server_handle;
int O_on = 1;
/* Create a new socket */
if ((server_handle = socket (AF_INET, SOCK_STREAM, 0)) == -1)
exit(1);
if (setsockopt (server_handle, SOL_SOCKET, SO_REUSEADDR,
&O_on, sizeof (int)) == -1)
exit(1);
/* Now set the server address struct and bind socket to the port*/
initaddr (&servadr,NULL, port);
if (bind
(server_handle, (struct sockaddr *) &servadr,
sizeof (struct sockaddr)) == -1)
exit(1);
/* Listen on the socket */
if (listen (server_handle, MAXCONNECT) == -1)
exit(1);
return server_handle;
}
void
close_sock (int sockhandle)
{
close (sockhandle);
}
客户端程序
MAKEFILE文件
##############################
# Client Makefile
##############################
INSTALLROOT=$(PWD)
CC=gcc
CPP=g++
INSTALL=install
APP_BINARY=client
BIN=/usr/local/bin
SERVFLAGS= -O2 -DLINUX $(WARNINGS)
MATH_LIB=-lm
SDL_ILD=-I/usr/include/SDL
SDL_LIB=-L/usr/liub -lSDL
SERVLIBS= $(MATH_LIB) -lpthread
JRTPLIBS=-I/usr/local/include/jrtplib3 -I/usr/local/include/jthread -L/usr/local/lib -ljthread -ljrtp -lxvidcore
#WARNINGS = -Wall \
# -Wundef -Wpointer-arith -Wbad-function-cast \
# -Wcast-align -Wwrite-strings -Wstrict-prototypes \
# -Wmissing-prototypes -Wmissing-declarations \
# -Wnested-externs -Winline -Wcast-qual -W \
# -Wno-unused
# -Wunused
CFLAGS =-O2 -DLINUX $(SDLFLAGS) $(WARNINGS)
CPPFLAGS = $(CFLAGS)
SHCFLAGS= -O2 -ffast-math -fforce-addr -fstrict-aliasing -fomit-frame-pointer
#CLIBFLAGS= -O9 -falign-functions=4 -march=athlon
#LIB_ENCODE = libjpgenc.a
#LIB_ENCODE_OBJECTS = encoder.o huffman.o marker.o quant.o
OBJECTS=tcp.o dxvid.o client.c
# Makefile commands:
#libjpgenc: $(LIB_ENCODE_OBJECTS)
# ld -r $(LIB_ENCODE_OBJECTS) -o $(LIB_ENCODE)
all: client
clean:
@echo "Cleaning up directory."
rm -f *.a *.o $(APP_BINARY) server *~ log errlog
# Applications:
client: $(OBJECTS)
$(CPP) $(CFLAGS) $(OBJECTS) $(X11_LIB) $(XPM_LIB)\
$(SDL_LIB) \
$(SDL_ILD) \
$(MATH_LIB) \
$(JRTPLIBS)\
$(SERVLIBS)\
-o $(APP_BINARY)
chmod 755 $(APP_BINARY)
tcp.o : tcp.c tcp.h
$(CC) $(SHCFLAGS) -c -o $@ $<
cxvid.o: dxvid.c dxvid.h
$(CC) $(SHCFLAGS) -c -o $@ $<
install: client
$(INSTALL) -s -m 755 -g root -o root client $(BIN)
文件client.c程序源码
#include
#include
#include
#include
#include
#include
#include
#include
#include
#include
#include
#include
#include
#include "tcp.h"
#include "rtpsession.h"
#include "rtppacket.h"
#include "rtpudpv4transmitter.h"
#include "rtpipv4address.h"
#include "rtpsessionparams.h"
#include "rtperrors.h"
#include "rtpsourcedata.h"
#include
#include
#include
#include
#include "dxvid.h"
#define BUFFER_SIZE (2*1024*1024)
SDL_Overlay *overlay;
SDL_Rect rect;
int SHXDIM =320;//display size
int SHYDIM =240;
SDL_Surface *screen;
char receivebuffer[1000000];
char *receivepointer = receivebuffer;
bool visiflag = false;
int receivepayloadlength = 0;
int headreceiveflag=0;
RTPUDPv4TransmissionParams transparams;
RTPSessionParams sessparams;
void
checkerror (int rtperr)
{
if (rtperr < 0)
{
std::cout << "ERROR: " << RTPGetErrorString (rtperr) << std::endl;
exit (-1);
}
}
class MyRTPSession:public RTPSession
{
protected:
void OnPollThreadStep ();
int ProcessRTPPacket (const RTPSourceData & srcdat,
const RTPPacket & rtppack);
};
MyRTPSession sess;
void
MyRTPSession::OnPollThreadStep ()
{
BeginDataAccess ();
// check incoming packets
if (GotoFirstSourceWithData ())
{
do
{
RTPPacket *pack;
RTPSourceData *srcdat;
srcdat = GetCurrentSourceInfo ();
while ((pack = GetNextPacket ()) != NULL&&visiflag==false)
{
ProcessRTPPacket (*srcdat, *pack);
delete pack;
}
}
while (GotoNextSourceWithData ());
}
if (visiflag==false) printf(" \n %d",receivepayloadlength);
EndDataAccess ();
}
int
MyRTPSession::ProcessRTPPacket (const RTPSourceData & srcdat,
const RTPPacket & rtppack)
{
int i;
char * payloadpointer = (char *)rtppack.GetPayloadData ();
// You can inspect the packet and the source's info here
std::cout << "Got packet " << rtppack.
GetExtendedSequenceNumber () << " from SSRC " << srcdat.
GetSSRC () << std::endl;
bool packermarker = rtppack.HasMarker ();
if (headreceiveflag==0)
{ if(rtppack.GetPayloadLength ()==50) headreceiveflag=1;
else {printf("error");
return (-1);}
}
if (!packermarker)
{ memcpy(receivepointer,payloadpointer,rtppack.GetPayloadLength ());
//for (i = 0; i < rtppack.GetPayloadLength (); i++)
//*(receivepointer++) = *(payloadpointer++);
receivepointer+=rtppack.GetPayloadLength ();
receivepayloadlength += rtppack.GetPayloadLength ();
visiflag = false;
}
else
{memcpy(receivepointer,payloadpointer,rtppack.GetPayloadLength ());
// for (i = 0; i < rtppack.GetPayloadLength (); i++)
//*(receivepointer++) = *(payloadpointer++);
receivepointer+=rtppack.GetPayloadLength ();
receivepayloadlength += rtppack.GetPayloadLength ();
visiflag = true;headreceiveflag=0;
}
}
struct frame_t{
char header[5];
int nbframe;
double seqtimes;
int deltatimes;
int w;
int h;
int size;
int format;
unsigned short bright;
unsigned short contrast;
unsigned short colors;
unsigned short exposure;
unsigned char wakeup;
int acknowledge;
} __attribute__ ((packed));
int readm4v(int sock, unsigned char **buf,struct frame_t *headerframe,int statOn);
int Client (char *Ip, short port,int owidth, int oheight, int statOn);
static int videoOk = 0;
void init_SDL();
int main(int argc, char *argv[])
{
int statOn = 0;
int owidth = 0;
int oheight = 0;
int i;
uint16_t portbase, destport;
uint32_t destip;
std::string ipstr;
int status;
sessparams.SetOwnTimestampUnit (1.0/90000);
/*********************************/
char *AdIpPort;
char AdIp[]= "000.000.000.000";
unsigned short ports = 0;
/*********************************/
std::cout << "Enter local portbase:" << std::endl;
std::cin >> portbase;
std::cout << std::endl;
transparams.SetPortbase (portbase);
status = sess.Create (sessparams, &transparams);
checkerror (status);
for (i = 1; i < argc; i++) {
/* skip bad arguments */
if (argv[i] == NULL || *argv[i] == 0 || *argv[i] != '-') {
continue;
}
if (strcmp (argv[i], "-w") == 0) {
if (i + 1 >= argc) {
printf ("No parameter specified with -w, aborting.\n");
exit (1);
}
AdIpPort = strdup (argv[i + 1]);
if(reportip(AdIpPort,AdIp,&ports) < 0)
printf("error in port convertion \n");
printf ("using Server %s Port %d \n",AdIp,ports);
}
}
Client(AdIp,ports,owidth,oheight, statOn);
}
int Client (char *Ip, short port,int owidth, int oheight, int statOn)
{
struct frame_t *headerframe;
//struct client_t *messcallback;
unsigned char *buf = NULL;
int width,height;
int jpegsize;
int sock_client;
int run = 1;
int quit =1;
int keypressed =0;
int bpp = 3;
struct tm *tdate;
time_t curdate;
char titre[21];
size_t outbytes;
SDL_Event event;
int fps = 25;
FILE *out;
int used_bytes;
int status;
unsigned char *out_buffer=NULL;
xvid_dec_stats_t xvid_dec_stats;
int bufframenum;
unsigned char *mp4_buffer;
unsigned char *mp4_ptr;
int useful_bytes;
useful_bytes=0;
int i;
int fpsdelay;
uint32_t lastftick;
int paused=0;
int resized=0;
int y;
uint8_t *outy,*outu,*outv,*op[3];
mp4_buffer = (unsigned char *) malloc(BUFFER_SIZE);
if (!mp4_buffer)
goto free_all_memory;
out_buffer = (unsigned char *)malloc(XDIM*YDIM*3/2);
if (!out_buffer)
goto free_all_memory;
init_SDL();
sock_client = open_clientsock(Ip,port);
headerframe=(struct frame_t*)malloc(sizeof(struct frame_t));
status = dec_init(1, 0);
if (status) {
fprintf(stderr,
"Decore INIT problem, return value %d\n", status);
goto release_all;
}
/* set the start frame */
i=0;
fpsdelay=1000/fps;
lastftick=SDL_GetTicks();
do
{
if((useful_bytes = readm4v(sock_client,&buf,headerframe,statOn)) < 0){
printf(" No size !!! exit fatal \n");
goto error;}
mp4_ptr=buf;
while (SDL_PollEvent(&event))
{
switch (event.type)
{
case SDL_VIDEORESIZE:
screen=SDL_SetVideoMode(event.resize.w, event.resize.h, 0, SDL_RESIZABLE | SDL_SWSURFACE);
rect.w=event.resize.w;
rect.h=event.resize.h;
if (paused)
{
resized=1;
}
break;
case SDL_KEYDOWN:
if (event.key.keysym.sym == SDLK_SPACE)
{
paused=!paused;
break;
}
if (event.key.keysym.sym != SDLK_ESCAPE)
{
goto release_all;
}
case SDL_QUIT:
goto release_all;
}
}
if ((!paused)||(resized))
{
if (((SDL_GetTicks()-lastftick)>fpsdelay)||(resized))
{
lastftick=SDL_GetTicks();
/* This loop is needed to handle VOL/NVOP reading */
do{
/* Decode frame */
used_bytes = dec_main(mp4_ptr, out_buffer, useful_bytes, &xvid_dec_stats);
printf ("the usedbytes is %d\n",used_bytes);
if(xvid_dec_stats.type==XVID_TYPE_VOL
&& (xvid_dec_stats.data.vol.width != XDIM
||xvid_dec_stats.data.vol.height != YDIM))
{printf("panduan\n");
//reallocate bigger out frame
free(out_buffer);
XDIM = xvid_dec_stats.data.vol.width;
YDIM = xvid_dec_stats.data.vol.height;
out_buffer = (unsigned char *) malloc(XDIM*YDIM*3/2);
if (!out_buffer)
goto free_all_memory;
//reallocate bigger yuv overlay
SDL_FreeYUVOverlay(overlay);
overlay = SDL_CreateYUVOverlay(XDIM, YDIM, SDL_YV12_OVERLAY, screen);
if (!overlay)
{
fprintf(stderr, "Couldn't create overlay: %s\n", SDL_GetError());
exit(4);
}
}
if(used_bytes > 0) {
mp4_ptr += used_bytes;
useful_bytes -= used_bytes;
}
}while (xvid_dec_stats.type <= 0 && useful_bytes > 0);
SDL_LockSurface(screen);
SDL_LockYUVOverlay(overlay);
outy = out_buffer;
outu = out_buffer+XDIM*YDIM;
outv = out_buffer+XDIM*YDIM*5/4;
for(y=0;y
{
op[0]=overlay->pixels[0]+overlay->pitches[0]*y;
op[1]=overlay->pixels[1]+overlay->pitches[1]*(y/2);
op[2]=overlay->pixels[2]+overlay->pitches[2]*(y/2);
memcpy(op[0],outy+y*XDIM,XDIM);
if(y%2 == 0)
{
memcpy(op[1],outu+XDIM/2*y/2,XDIM/2);
memcpy(op[2],outv+XDIM/2*y/2,XDIM/2);
}
}
SDL_UnlockYUVOverlay(overlay);
SDL_UnlockSurface(screen);
SDL_DisplayYUVOverlay(overlay, &rect);
if (resized)
resized = 0;
}
}
SDL_Delay(10);
} while (1 );
useful_bytes = 0; /* Empty buffer */
release_all:
if (dec_handle) {
status = dec_stop();
if (status)
fprintf(stderr, "decore RELEASE problem return value %d\n", status);
}
error:
close_sock(sock_client);
free(buf);
free(headerframe);
SDL_Quit ();
free_all_memory:
free(out_buffer);
free(mp4_buffer);
return 0;
}
int readm4v(int sock, unsigned char **buf,struct frame_t *headerframe,int statOn)
{
int byteread,bytewrite;
while (1){
if (visiflag==true ) break;
usleep(10);
}
memcpy(headerframe,receivebuffer,sizeof(struct frame_t));
if(statOn)
printf (" key %s nb %d width %d height %d times %dms size %d \n",headerframe->header,
headerframe->nbframe,headerframe->w,headerframe->h,headerframe->deltatimes,headerframe->size);
if(headerframe->size && !headerframe->wakeup){
//if(headerframe->size){
*buf=(unsigned char*) realloc(*buf,headerframe->size);
memcpy(*buf,receivebuffer+sizeof(struct frame_t),headerframe->size);
/*if((byteread = read_sock(sock,*buf,headerframe->size)) < 0){
printf("Seem server is gone !! try later \n");
goto error;}
*/}
//printf("buf read %d \n",byteread);
if(headerframe->acknowledge)
usleep(5000);
printf("h");
receivepayloadlength = 0;
receivepointer = receivebuffer;
visiflag=false;
return ((headerframe->wakeup)?0:(headerframe->size));
//return (headerframe->size);
error:
return -1;
}
void init_SDL()
{
if (SDL_Init (SDL_INIT_VIDEO) < 0)
{ videoOk=0;
fprintf (stderr, "Couldn't initialize SDL: %s\n", SDL_GetError());
exit (1);
}
videoOk=1;
atexit (SDL_Quit);
screen = SDL_SetVideoMode (320, 240, 0, SDL_HWSURFACE
| SDL_DOUBLEBUF
| SDL_ANYFORMAT
| SDL_RESIZABLE);
if (screen == NULL)
{
fprintf(stderr, "Couldn't set video mode: %s\n", SDL_GetError());
exit(2);
}
if (0 == screen->flags & SDL_HWSURFACE)
{
fprintf(stderr,"Can't get hardware surface\n");
exit(3);
}
SDL_WM_SetCaption ("SDL MultiMedia Application", NULL);
overlay = SDL_CreateYUVOverlay(XDIM, YDIM, SDL_YV12_OVERLAY, screen);
if (!overlay)
{
fprintf(stderr, "Couldn't create overlay: %s\n", SDL_GetError());
exit(4);
}
//show the overlay status
printf("Created %dx%dx%d %s %s overlay\n",overlay->w,overlay->h,overlay->planes,
overlay->hw_overlay?"hardware":"software",
overlay->format==SDL_YV12_OVERLAY?"YV12":
overlay->format==SDL_IYUV_OVERLAY?"IYUV":
overlay->format==SDL_YUY2_OVERLAY?"YUY2":
overlay->format==SDL_UYVY_OVERLAY?"UYVY":
overlay->format==SDL_YVYU_OVERLAY?"YVYU":
"Unknown");
rect.x=0;
rect.y=0;
rect.w=SHXDIM;
rect.h=SHYDIM;
}
文件dxvid.h程序源码
#define CSP XVID_CSP_I420
#define BPP 1
int *dec_handle=NULL;
int XDIM=352;
int YDIM=288;
int
dec_init(int use_assembler, int debug_level);
int
dec_main(unsigned char *istream,
unsigned char *ostream,
int istream_size,
xvid_dec_stats_t *xvid_dec_stats);
int dec_stop();
文件dxvid.c程序源码
#include
#include
#include
#include
#include
#include
#include
#include
#include "dxvid.h"
int
dec_main(unsigned char *istream,
unsigned char *ostream,
int istream_size,
xvid_dec_stats_t *xvid_dec_stats)
{
int ret;
xvid_dec_frame_t xvid_dec_frame;
/* Reset all structures */
memset(&xvid_dec_frame, 0, sizeof(xvid_dec_frame_t));
memset(xvid_dec_stats, 0, sizeof(xvid_dec_stats_t));
/* Set version */
xvid_dec_frame.version = XVID_VERSION;
xvid_dec_stats->version = XVID_VERSION;
/* No general flags to set */
xvid_dec_frame.general = 0;
/* Input stream */
xvid_dec_frame.bitstream = istream;
xvid_dec_frame.length = istream_size;
/* Output frame structure */
xvid_dec_frame.output.plane[0] = ostream;
xvid_dec_frame.output.stride[0] = XDIM*BPP;
xvid_dec_frame.output.csp = CSP;
ret = xvid_decore(dec_handle, XVID_DEC_DECODE, &xvid_dec_frame, xvid_dec_stats);
return(ret);
}
/* close decoder to release resources */
int
dec_stop()
{
int ret;
ret = xvid_decore(dec_handle, XVID_DEC_DESTROY, NULL, NULL);
return(ret);
}
/*****************************************************************************
* Routines for decoding: init decoder, use, and stop decoder
****************************************************************************/
/* init decoder before first run */
int
dec_init(int use_assembler, int debug_level)
{
int ret;
xvid_gbl_init_t xvid_gbl_init;
xvid_dec_create_t xvid_dec_create;
/* Reset the structure with zeros */
memset(&xvid_gbl_init, 0, sizeof(xvid_gbl_init_t));
memset(&xvid_dec_create, 0, sizeof(xvid_dec_create_t));
/*------------------------------------------------------------------------
* XviD core initialization
*----------------------------------------------------------------------*/
/* Version */
xvid_gbl_init.version = XVID_VERSION;
/* Assembly setting */
if(use_assembler)
xvid_gbl_init.cpu_flags = 0;
else
xvid_gbl_init.cpu_flags = XVID_CPU_FORCE;
xvid_gbl_init.debug = debug_level;
xvid_global(NULL, 0, &xvid_gbl_init, NULL);
/*------------------------------------------------------------------------
* XviD encoder initialization
*----------------------------------------------------------------------*/
/* Version */
xvid_dec_create.version = XVID_VERSION;
/*
* Image dimensions -- set to 0, xvidcore will resize when ever it is
* needed
*/
xvid_dec_create.width = 0;
xvid_dec_create.height = 0;
ret = xvid_decore(NULL, XVID_DEC_CREATE, &xvid_dec_create, NULL);
dec_handle = (int *)xvid_dec_create.handle;
return(ret);
}
文件tcp.h程序源码
#include
#include
#include
void
close_sock (int sockhandle);
int
reportip( char *src, char *ip, unsigned short *port);
static void initaddr (struct sockaddr_in *servadrr,char *address,int port);
int open_clientsock(char * address, int port);
文件tcp.c程序源码
#include
#include
#include
#include
#include
#include
#include
#include "tcp.h"
int open_clientsock(char * address, int port)
{
struct sockaddr_in servadr;
int client_handle;
/* Create a new socket */
if ((client_handle = socket (AF_INET, SOCK_STREAM, 0)) == -1)
exit(1);
/* Now set the server address struct and connect client socket to the port*/
initaddr (&servadr,address,port);
if (connect(client_handle,(struct sockaddr *) &servadr,
sizeof (struct sockaddr)) == -1)
exit(1);
return client_handle;
}
static void
initaddr (struct sockaddr_in *servadrr,char *address,int port)
{
int adrsize = 0;
if(address){
adrsize = strlen(address);
if(adrsize < 7 || adrsize > 15)
exit(1);
servadrr->sin_addr.s_addr = inet_addr(address);
} else {
servadrr->sin_addr.s_addr = INADDR_ANY;
}
servadrr->sin_family = AF_INET;
servadrr->sin_port = htons (port);
memset (&(servadrr->sin_zero), '\0', 8);
}
int
reportip( char *src, char *ip, unsigned short *port)
{
int j,k,done,ipdone,nbpt=0;
char *AdIpPort= src;
char *AdIp = ip;
char Ports[] = "65536";
j=0;k=0;done=0;ipdone=0;
while(j < 22){
switch (AdIpPort[j]){
case '\0':
done =1;
break;
case '.':
nbpt++;
if(nbpt > 3){
printf("error fatal \n");
return -1;
}
break;
case ':':
k = 0; ipdone = 1;
AdIp[j++] ='\0';
break;
default:
break;
}
if (ipdone)
Ports[k++]=AdIpPort[j++];
else
AdIp[k++]=AdIpPort[j++];
if(done) break;
}
*port = (unsigned short) atoi (Ports);
//printf ("Ip %s Port %s \n",AdIp,Ports);
if(*port < 1024) {
printf("ERROR Set default port to 7070 \n");
*port = 7070;
}
return 0;
}
void
close_sock (int sockhandle)
{
close (sockhandle);
}
xiaolin3325 于 2008-12-31 13:50:46发表:
没注释(6)m:b (6)m:b
yucexuei 于 2008-12-31 11:23:20发表:
大家来支持我们的朋友
喜欢结交
论坛朋友
tkfly0324 于 2008-12-30 14:22:08发表:
楼主 怎么没有文档呀
注释也没有呀
cwqing1973 于 2008-11-24 18:17:08发表:
其实对于写程序，我自我的感觉是这样的，它的使用只比做一动画片或者一个特定的图片差不多啊，只是它的方法与实现方式不同而已。如果楼主能一一说明，对于我们来说，最好不过了。
zhouguoping 于 2008-11-24 13:37:47发表:
gfhlole你好！
最近看了你的代码，没有搞懂。您能解释一下结构体：
struct frame_t{
char header[5];
int nbframe;
double seqtimes;
int deltatimes;
int w;
int h;
int size;
int format;
unsigned short bright;
unsigned short contrast;
unsigned short colors;
unsigned short exposure;
unsigned char wakeup;
int acknowledge;
} __attribute__ ((packed));
中成员header、nbframe、seqtimes、deltatimes、wakeup、acknowledge的含义及作用吗？
谢谢！！
beyondfly 于 2007-10-09 19:11:01发表:
好东西，有空好好研究研究
drunkedfish 于 2007-10-03 23:27:06发表:
高手啊 可惜看不明白:0L
奶茶dsk 于 2007-10-03 01:29:28发表:
:0D1 :0D1 ，谢谢楼主分享。。
tenfon 于 2007-09-27 15:49:21发表:
等把你这程序分析完了。也差不多可以自己写一条了呀。。。谢谢给思路了呵