void dump_cvpixel_buffer (CVPixelBufferRef pixbuf) { gsize left, right, top, bottom; GST_LOG ("buffer %p", pixbuf); if (CVPixelBufferLockBaseAddress (pixbuf, 0)) { GST_WARNING ("Couldn't lock base adress on pixel buffer !"); return; } GST_LOG ("Width:%" G_GSIZE_FORMAT " , Height:%" G_GSIZE_FORMAT, CVPixelBufferGetWidth (pixbuf), CVPixelBufferGetHeight (pixbuf)); GST_LOG ("Format:%" GST_FOURCC_FORMAT, GST_FOURCC_ARGS (CVPixelBufferGetPixelFormatType (pixbuf))); GST_LOG ("base address:%p", CVPixelBufferGetBaseAddress (pixbuf)); GST_LOG ("Bytes per row:%" G_GSIZE_FORMAT, CVPixelBufferGetBytesPerRow (pixbuf)); GST_LOG ("Data Size:%" G_GSIZE_FORMAT, CVPixelBufferGetDataSize (pixbuf)); GST_LOG ("Plane count:%" G_GSIZE_FORMAT, CVPixelBufferGetPlaneCount (pixbuf)); CVPixelBufferGetExtendedPixels (pixbuf, &left, &right, &top, &bottom); GST_LOG ("Extended pixels. left/right/top/bottom : %" G_GSIZE_FORMAT "/%" G_GSIZE_FORMAT "/%" G_GSIZE_FORMAT "/%" G_GSIZE_FORMAT, left, right, top, bottom); CVPixelBufferUnlockBaseAddress (pixbuf, 0); }
void jit_gl_hap_draw_frame(void *jitob, CVImageBufferRef frame) { t_jit_gl_hap * x = (t_jit_gl_hap*)jitob; CFTypeID imageType = CFGetTypeID(frame); OSType newPixelFormat; if(x->validframe) return; if (imageType == CVPixelBufferGetTypeID()) { // Update the texture CVBufferRetain(frame); if(x->buffer) { CVPixelBufferUnlockBaseAddress(x->buffer, kCVPixelBufferLock_ReadOnly); CVBufferRelease(x->buffer); } x->buffer = frame; CVPixelBufferLockBaseAddress(x->buffer, kCVPixelBufferLock_ReadOnly); x->dim[0] = CVPixelBufferGetWidth(x->buffer); x->dim[1] = CVPixelBufferGetHeight(x->buffer); newPixelFormat = CVPixelBufferGetPixelFormatType(x->buffer); if(x->buffer && x->hap_format==JIT_GL_HAP_PF_HAP) { size_t extraRight, extraBottom; unsigned int bitsPerPixel; size_t bytesPerRow; size_t actualBufferSize; CVPixelBufferGetExtendedPixels(x->buffer, NULL, &extraRight, NULL, &extraBottom); x->roundedWidth = x->dim[0] + extraRight; x->roundedHeight = x->dim[1] + extraBottom; if (x->roundedWidth % 4 != 0 || x->roundedHeight % 4 != 0) { x->validframe = 0; return; } switch (newPixelFormat) { case kHapPixelFormatTypeRGB_DXT1: x->newInternalFormat = GL_COMPRESSED_RGB_S3TC_DXT1_EXT; bitsPerPixel = 4; break; case kHapPixelFormatTypeRGBA_DXT5: case kHapPixelFormatTypeYCoCg_DXT5: x->newInternalFormat = GL_COMPRESSED_RGBA_S3TC_DXT5_EXT; bitsPerPixel = 8; break; default: // we don't support non-DXT pixel buffers x->validframe = 0; return; break; } x->useshader = (newPixelFormat == kHapPixelFormatTypeYCoCg_DXT5); bytesPerRow = (x->roundedWidth * bitsPerPixel) / 8; x->newDataLength = bytesPerRow * x->roundedHeight; // usually not the full length of the buffer actualBufferSize = CVPixelBufferGetDataSize(x->buffer); // Check the buffer is as large as we expect it to be if (x->newDataLength > actualBufferSize) { x->validframe = 0; return; } // If we got this far we're good to go x->validframe = 1; x->target = GL_TEXTURE_2D; if(!x->flipped) { jit_attr_setlong(x->texoutput, gensym("flip"), 1); x->flipped = 1; } //x->drawhap = 1; } else if(x->buffer) {// && x->hap_format==JIT_GL_HAP_PF_HAP) { if( newPixelFormat == k24RGBPixelFormat ) x->newInternalFormat = GL_RGB8; else if( newPixelFormat == k32BGRAPixelFormat ) x->newInternalFormat = GL_RGBA8; else { x->validframe = 0; return; } x->roundedWidth = x->dim[0]; x->roundedHeight = x->dim[1]; x->newDataLength = CVPixelBufferGetDataSize(x->buffer); x->rowLength = CVPixelBufferGetBytesPerRow( x->buffer ) / (x->hap_format==JIT_GL_HAP_PF_RGB ? 3 : 4); x->target = GL_TEXTURE_RECTANGLE_EXT; if(!x->flipped) { jit_attr_setlong(x->texoutput, gensym("flip"), 1); x->flipped = 1; } x->validframe = 1; } } else { #ifdef MAC_VERSION CGSize imageSize = CVImageBufferGetEncodedSize(frame); bool flipped = CVOpenGLTextureIsFlipped(frame); x->texture = CVOpenGLTextureGetName(frame); x->useshader = 0; x->dim[0] = (t_atom_long)imageSize.width; x->dim[1] = (t_atom_long)imageSize.height; x->validframe = 1; x->target = GL_TEXTURE_RECTANGLE_ARB; if(x->flipped!=flipped) { jit_attr_setlong(x->texoutput, gensym("flip"), flipped); x->flipped = flipped; } #endif } }
void QTPixelBuffer::getExtendedPixels(size_t* left, size_t* right, size_t* top, size_t* bottom) const { return CVPixelBufferGetExtendedPixels(m_pixelBuffer, left, right, top, bottom); }