/* decode w/ buffering
* this will fork another process
* child process does decoding
* parent process does playing audio
*/
void decode() {
OutputBuffer * cb;
PlayerControl * pc;
DecoderControl * dc;
// fprintf(stderr,"In decode.c decode func :\r\n");
cb = &(getPlayerData()->buffer);
clearAllMetaChunkSets(cb);
cb->begin = 0;
cb->end = 0;
pc = &(getPlayerData()->playerControl);
dc = &(getPlayerData()->decoderControl);
dc->error = 0;
dc->seek = 0;
dc->stop = 0;
dc->start = 1;
if(mpm_get_id(MPM_DECODE)<=0) {
if(decoderInit(pc,cb,dc)<0) return;
}
decodeParent(pc, dc, cb);
// fprintf(stderr,"Exiting In decode.c decode func :\r\n");
}
JNIEXPORT jint JNICALL Java_com_example_enzocamtest_CamView_startCamera(JNIEnv* env,
jobject thiz, jstring deviceName, jint width, jint height)
{
int ret = 0;
const char* dev_name = (*env)->GetStringUTFChars(env, deviceName, 0);
/* Initialize all the structures we will be using */
mjpgDec = (struct decoderInstance *)calloc(1, sizeof(struct decoderInstance));
usbCam = (struct cameraInstance *)calloc(1, sizeof(struct cameraInstance));
camData = (struct mediaBuffer *)calloc(1, sizeof(struct mediaBuffer));
yuvData = (struct mediaBuffer *)calloc(1, sizeof(struct mediaBuffer));
y422_buf = (struct g2d_buf *)calloc(1, sizeof(struct g2d_buf));
/* Set properties for H264 AVC decoder */
mjpgDec->type = MJPEG;
/* Set properties for USB camera */
usbCam->type = MJPEG;
usbCam->width = width;
usbCam->height = height;
usbCam->fps = FPS;
strcpy(usbCam->deviceName, dev_name);
/* Init the VPU. This must be done before a codec can be used.
If this fails, we need to bail. */
ret = vpuInit();
if (ret < 0)
return -1;
if (cameraInit(usbCam) < 0)
ret = -1;
/* In order to init mjpg decoder, it must be supplied with bitstream
parse */
ret = cameraGetFrame(usbCam, camData);
if (ret < 0) {
err_msg("Could not get camera frame\n");
ret = -1;
}
if (decoderInit(mjpgDec, camData) < 0) {
err_msg("Could not init MJPG decoder\n");
ret = -1;
}
y420_buf = g2d_alloc(width * height * 2, 0);
rgb_buf = g2d_alloc(width * height * 2, 0);
rgb_surf.planes[0] = rgb_buf->buf_paddr;
rgb_surf.left = 0;
rgb_surf.top = 0;
rgb_surf.right = width;
rgb_surf.bottom = height;
rgb_surf.stride = width;
rgb_surf.width = width;
rgb_surf.height = height;
rgb_surf.rot = G2D_ROTATION_0;
rgb_surf.format = G2D_RGB565;
y420_surf.planes[0] = y420_buf->buf_paddr;
y420_surf.planes[1] = y420_surf.planes[0] + width*height;
y420_surf.planes[2] = y420_surf.planes[1] + width*height/4;
y420_surf.left = 0;
y420_surf.top = 0;
y420_surf.right = width;
y420_surf.bottom = height;
y420_surf.stride = width;
y420_surf.width = width;
y420_surf.height = height;
y420_surf.rot = G2D_ROTATION_0;
y420_surf.format = G2D_I420;
info_msg("Finished setting up JNI codec and camera!\n");
return ret;
}
