OSErr EI_MakeImageDescription(ImageFramePtr frame, long colorCount, UInt8 *color, ImageDescriptionHandle *descOut)
{
OSErr err = noErr;
ImageDescriptionHandle desc = NULL;
ImageDescriptionPtr idp;
CTabHandle colors = NULL;
desc = (ImageDescriptionHandle)NewHandleClear(sizeof(ImageDescription));
if ( (err = MemError()) ) goto bail;
idp = *desc;
idp->idSize = sizeof(ImageDescription); // total size of this image description structure with extra data including color lookup tables and other per sequence data
idp->cType = FOUR_CHAR_CODE(kEI_Sig); // type of compressor component that created this compressed image data
idp->vendor = kAppleManufacturer; // identifies the developer of the compressor that created the compressed image
idp->frameCount = 1; // the number of frames in the image data associated with this description
idp->depth = frame->frameBitDepth + frame->frameAlpha; // pixel depth specified for the compressed image
idp->clutID = -1; // ID of the color table for the compressed image, -1 if the image does not use a color table
idp->hRes = idp->vRes = 72L << 16; // resolution dpi
idp->width = EndianU16_BtoN(frame->frameRect.right) - EndianU16_BtoN(frame->frameRect.left); // image width in pixels
idp->height = EndianU16_BtoN(frame->frameRect.bottom) - EndianU16_BtoN(frame->frameRect.top); // image height in pixels
idp->version = 0; // the version of the compressed data
// make up a color table, if there is one
if (colorCount > 2) {
int i;
colors = (CTabHandle)NewHandleClear(sizeof(ColorTable) + colorCount * sizeof(ColorSpec));
if ( (err = MemError()) ) goto bail;
(**colors).ctFlags = 0;
(**colors).ctSeed = GetCTSeed();
(**colors).ctSize = colorCount - 1;
for (i=0; i<colorCount; i++) {
(**colors).ctTable[i].value = i;
(**colors).ctTable[i].rgb.red = (color[0] << 8) | color[0];
(**colors).ctTable[i].rgb.green = (color[1] << 8) | color[1];
(**colors).ctTable[i].rgb.blue = (color[2] << 8) | color[2];
color += 3;
}
// copy the custom color table into the image description structure
err = SetImageDescriptionCTable(desc, colors);
if (err) goto bail;
}
bail:
if (colors)
DisposeCTable(colors);
if (desc && err) {
DisposeHandle((Handle)desc);
desc = NULL;
}
*descOut = desc;
return err;
}
int process_first_packet__flac(StreamInfo *si, ogg_page *op, ogg_packet *opckt)
{
unsigned long serialnoatom[3] = { EndianU32_NtoB(sizeof(serialnoatom)), EndianU32_NtoB(kCookieTypeOggSerialNo),
EndianS32_NtoB(ogg_page_serialno(op)) };
unsigned long atomhead[2] = { EndianU32_NtoB(opckt->bytes + sizeof(atomhead) - 13), EndianU32_NtoB(kCookieTypeFLACStreaminfo) };
UInt32 sib = EndianU32_BtoN(* (UInt32 *) (((char *)opckt->packet) + 27));
si->si_flac.metablocks = (SInt32) EndianU16_BtoN(* (UInt16 *) (((char *)opckt->packet) + 7));
sib >>= 4;
si->si_flac.bps = (sib & 0x1f) + 1;
sib >>= 5;
si->numChannels = (sib & 0x07) + 1;
si->rate = (sib >> 3) & 0xfffff;
//si->lastMediaInserted = 0;
si->mediaLength = 0;
dbg_printf("! -- - flac_first_packet: ch: %d, rate: %ld, bps: %ld\n", si->numChannels, si->rate, si->si_flac.bps);
PtrAndHand(serialnoatom, si->soundDescExtension, sizeof(serialnoatom)); //check errors?
PtrAndHand(atomhead, si->soundDescExtension, sizeof(atomhead)); //check errors?
PtrAndHand((((char *)opckt->packet) + 13), si->soundDescExtension, opckt->bytes - 13); //check errors?
si->si_flac.state = kFStateReadingComments;
return 0;
};
