/*!
* pixWriteWebP()
*
* Input: filename
* pixs
* quality (0 - 100; default ~80)
* lossless (use 1 for lossless; 0 for lossy)
* Return: 0 if OK, 1 on error
*
* Notes:
* (1) Special top-level function allowing specification of quality.
*/
l_int32
pixWriteWebP(const char *filename,
PIX *pixs,
l_int32 quality,
l_int32 lossless)
{
FILE *fp;
PROCNAME("pixWriteWebP");
if (!pixs)
return ERROR_INT("pixs not defined", procName, 1);
if (!filename)
return ERROR_INT("filename not defined", procName, 1);
if ((fp = fopenWriteStream(filename, "wb+")) == NULL)
return ERROR_INT("stream not opened", procName, 1);
if (pixWriteStreamWebP(fp, pixs, quality, lossless) != 0) {
fclose(fp);
return ERROR_INT("pixs not compressed to stream", procName, 1);
}
fclose(fp);
return 0;
}
/*!
* pixWriteStream()
*
* Input: stream
* pix
* format
* Return: 0 if OK; 1 on error.
*/
l_int32
pixWriteStream(FILE *fp,
PIX *pix,
l_int32 format)
{
PROCNAME("pixWriteStream");
if (!fp)
return ERROR_INT("stream not defined", procName, 1);
if (!pix)
return ERROR_INT("pix not defined", procName, 1);
if (format == IFF_DEFAULT)
format = pixChooseOutputFormat(pix);
switch(format)
{
case IFF_BMP:
pixWriteStreamBmp(fp, pix);
break;
case IFF_JFIF_JPEG: /* default quality; baseline sequential */
return pixWriteStreamJpeg(fp, pix, 75, 0);
break;
case IFF_PNG: /* no gamma value stored */
return pixWriteStreamPng(fp, pix, 0.0);
break;
case IFF_TIFF: /* uncompressed */
case IFF_TIFF_PACKBITS: /* compressed, binary only */
case IFF_TIFF_RLE: /* compressed, binary only */
case IFF_TIFF_G3: /* compressed, binary only */
case IFF_TIFF_G4: /* compressed, binary only */
case IFF_TIFF_LZW: /* compressed, all depths */
case IFF_TIFF_ZIP: /* compressed, all depths */
return pixWriteStreamTiff(fp, pix, format);
break;
case IFF_PNM:
return pixWriteStreamPnm(fp, pix);
break;
case IFF_GIF:
return pixWriteStreamGif(fp, pix);
break;
case IFF_PS:
return pixWriteStreamPS(fp, pix, NULL, 0, DEFAULT_SCALING);
break;
case IFF_JP2:
return ERROR_INT("jp2 format not supported", procName, 1);
break;
case IFF_WEBP:
return pixWriteStreamWebP(fp, pix, 80, 0);
break;
case IFF_LPDF:
return pixWriteStreamPdf(fp, pix, 0, NULL);
break;
case IFF_SPIX:
return pixWriteStreamSpix(fp, pix);
break;
default:
return ERROR_INT("unknown format", procName, 1);
break;
}
return 0;
}
