static zbar_image_t *_php_zbarcode_get_page(MagickWand *wand)
{
unsigned long width, height;
unsigned char *image_data;
size_t image_size;
if (MagickSetImageDepth(wand, 8) == MagickFalse) {
return NULL;
}
if (MagickSetImageFormat(wand, "GRAY") == MagickFalse) {
return NULL;
}
width = MagickGetImageWidth(wand);
height = MagickGetImageHeight(wand);
image_data = malloc(width * height);
if (!MagickExportImagePixels(wand, 0, 0, width, height, "I", CharPixel, image_data)) {
return NULL;
}
return _php_zbarcode_image_create(width, height, image_data);
}
/**
* read frame using ImageMagick
*/
NftResult im_read_frame(struct Ledcat *c, size_t width, size_t height, char *buf)
{
#if HAVE_IMAGEMAGICK == 1
/* is there an image from a previous read? */
if(MagickHasNextImage(c->mw))
{
MagickNextImage(c->mw);
}
else
{
/* end-of-stream? */
if(feof(c->file))
return FALSE;
/* read file */
if(!MagickReadImageFile(c->mw, c->file))
{
im_error(c->mw);
return FALSE;
}
/* reset iterator in case we read more than one file */
//MagickResetIterator(c->mw);
}
/* turn possible alpha-channel black */
/*PixelWand *pw;
if(!(pw = NewPixelWand()))
return FALSE;
PixelSetColor(pw, "black");
MagickSetImageBackgroundColor(c->mw, pw);
DestroyPixelWand(pw);*/
/* get raw-buffer from imagemagick */
if(!(MagickExportImagePixels(c->mw, 0, 0, width, height, c->map, c->storage, buf)))
{
im_error(c->mw);
return FALSE;
}
/* free resources */
if(!MagickHasNextImage(c->mw))
ClearMagickWand(c->mw);
#endif
return TRUE;
}
void load_image(ConvertContext *context) {
int result = RESULT_OK;
char *error_desc;
ExceptionType error_type;
// wait for resources to be available
dispatch_semaphore_wait(context->conv_semaphore, DISPATCH_TIME_FOREVER);
// load image
if (MagickReadImage(context->mw, context->src_path) == MagickFalse) {
// deal with error
error_desc = MagickGetException(context->mw, &error_type);
asprintf(&context->results.message,"Error loading image (%s): %s\n",error_desc,context->src_path);
error_desc = (char *)MagickRelinquishMemory(error_desc);
result += RESULT_ERROR;
}
if (result == RESULT_OK) {
// get image info
context->hasAlphaChannel = MagickGetImageAlphaChannel(context->mw);
if (context->hasAlphaChannel == MagickTrue) {
context->imageWidth = MagickGetImageWidth(context->mw);
context->imageHeight = MagickGetImageHeight(context->mw);
// get pixel data
context->pixel_count = context->imageWidth * context->imageHeight;
context->pixels = malloc(context->pixel_count * sizeof(PixelData));
if (context->pixels == NULL) {
asprintf(&context->results.message, "Error allocating memory for pixel data: %s\n",context->src_path);
result += RESULT_ERROR;
} else {
if (MagickExportImagePixels(context->mw, 0, 0, context->imageWidth, context->imageHeight, "ARGB", CharPixel, context->pixels) == MagickFalse) {
error_desc = MagickGetException(context->mw, &error_type);
asprintf(&context->results.message, "Error exporting pixel data (%s): %s\n",error_desc,context->src_path);
error_desc = (char *)MagickRelinquishMemory(error_desc);
result += RESULT_ERROR;
}
}
}
}
if (result != RESULT_OK) {
// clean up mess
context->results.result = result;
dispatch_group_async_f(context->conv_group, dispatch_get_main_queue(), context, (void (*)(void *))finish_image);
} else {
// move to next step
dispatch_group_async_f(context->conv_group, context->conv_queue, context, (void (*)(void *))conv_image);
}
}
int main (int argc, char **argv) {
MagickWand *img = NULL;
imag_t p1, *p; p=&p1;
char *res;
int i;
MagickWandGenesis();
img = NewMagickWand();
if (argc > 1 && MagickReadImage(img, argv[1]) == MagickFalse)
{ fprintf(stderr, "Failed to read image!\n"); exit(EXIT_FAILURE); }
/* Perform the required transform in image */
//MagickTransformImageColorspace(img, GRAYColorspace); // To gray colors
//MagickThresholdImage(img, 40000); // Threshold
//MagickNegateImage(img, MagickFalse); // Negate or invert black/white
/* Extract image data */
p->x = MagickGetImageWidth(img);
p->y = MagickGetImageHeight(img);
p->p = malloc(p->x*p->y * sizeof(unsigned char));
MagickExportImagePixels(img, 0, 0, p->x, p->y, "I", CharPixel, p->p);
/* Gocr library functions *************************************************/
gocr_ini(); /* Init a gocr job */
gocr_opts("0-9","#",NULL,0,0,0); /* only digits, "#" for unrecognized char */
res = gocr_call(p); /* Call gocr */
for (i=0; i < gocr_rows(); i++)
printf("%s\n", gocr_resp(i)); /* Print response */
gocr_end(); /* End a gocr job */
/**************************************************************************/
/* Write processed image */
MagickWriteImage(img, "processed.png");
DestroyMagickWand(img);
MagickWandTerminus();
exit(EXIT_SUCCESS);
}
int main(int argc,char **argv)
{
#define ThrowAPIException(wand) \
{ \
description=MagickGetException(wand,&severity); \
(void) FormatLocaleFile(stderr,"%s %s %lu %s\n",GetMagickModule(), \
description); \
description=(char *) MagickRelinquishMemory(description); \
exit(-1); \
}
static char
CustomOption[] = "custom option",
CustomProperty[] = "custom profile";
static unsigned char
sRGBProfile[] =
{
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0x06, 0x8c, 0x06, 0x9d, 0x06, 0xaf, 0x06, 0xc0, 0x06, 0xd1, 0x06,
0xe3, 0x06, 0xf5, 0x07, 0x07, 0x07, 0x19, 0x07, 0x2b, 0x07, 0x3d,
0x07, 0x4f, 0x07, 0x61, 0x07, 0x74, 0x07, 0x86, 0x07, 0x99, 0x07,
0xac, 0x07, 0xbf, 0x07, 0xd2, 0x07, 0xe5, 0x07, 0xf8, 0x08, 0x0b,
0x08, 0x1f, 0x08, 0x32, 0x08, 0x46, 0x08, 0x5a, 0x08, 0x6e, 0x08,
0x82, 0x08, 0x96, 0x08, 0xaa, 0x08, 0xbe, 0x08, 0xd2, 0x08, 0xe7,
0x08, 0xfb, 0x09, 0x10, 0x09, 0x25, 0x09, 0x3a, 0x09, 0x4f, 0x09,
0x64, 0x09, 0x79, 0x09, 0x8f, 0x09, 0xa4, 0x09, 0xba, 0x09, 0xcf,
0x09, 0xe5, 0x09, 0xfb, 0x0a, 0x11, 0x0a, 0x27, 0x0a, 0x3d, 0x0a,
0x54, 0x0a, 0x6a, 0x0a, 0x81, 0x0a, 0x98, 0x0a, 0xae, 0x0a, 0xc5,
0x0a, 0xdc, 0x0a, 0xf3, 0x0b, 0x0b, 0x0b, 0x22, 0x0b, 0x39, 0x0b,
0x51, 0x0b, 0x69, 0x0b, 0x80, 0x0b, 0x98, 0x0b, 0xb0, 0x0b, 0xc8,
0x0b, 0xe1, 0x0b, 0xf9, 0x0c, 0x12, 0x0c, 0x2a, 0x0c, 0x43, 0x0c,
0x5c, 0x0c, 0x75, 0x0c, 0x8e, 0x0c, 0xa7, 0x0c, 0xc0, 0x0c, 0xd9,
0x0c, 0xf3, 0x0d, 0x0d, 0x0d, 0x26, 0x0d, 0x40, 0x0d, 0x5a, 0x0d,
0x74, 0x0d, 0x8e, 0x0d, 0xa9, 0x0d, 0xc3, 0x0d, 0xde, 0x0d, 0xf8,
0x0e, 0x13, 0x0e, 0x2e, 0x0e, 0x49, 0x0e, 0x64, 0x0e, 0x7f, 0x0e,
0x9b, 0x0e, 0xb6, 0x0e, 0xd2, 0x0e, 0xee, 0x0f, 0x09, 0x0f, 0x25,
0x0f, 0x41, 0x0f, 0x5e, 0x0f, 0x7a, 0x0f, 0x96, 0x0f, 0xb3, 0x0f,
0xcf, 0x0f, 0xec, 0x10, 0x09, 0x10, 0x26, 0x10, 0x43, 0x10, 0x61,
0x10, 0x7e, 0x10, 0x9b, 0x10, 0xb9, 0x10, 0xd7, 0x10, 0xf5, 0x11,
0x13, 0x11, 0x31, 0x11, 0x4f, 0x11, 0x6d, 0x11, 0x8c, 0x11, 0xaa,
0x11, 0xc9, 0x11, 0xe8, 0x12, 0x07, 0x12, 0x26, 0x12, 0x45, 0x12,
0x64, 0x12, 0x84, 0x12, 0xa3, 0x12, 0xc3, 0x12, 0xe3, 0x13, 0x03,
0x13, 0x23, 0x13, 0x43, 0x13, 0x63, 0x13, 0x83, 0x13, 0xa4, 0x13,
0xc5, 0x13, 0xe5, 0x14, 0x06, 0x14, 0x27, 0x14, 0x49, 0x14, 0x6a,
0x14, 0x8b, 0x14, 0xad, 0x14, 0xce, 0x14, 0xf0, 0x15, 0x12, 0x15,
0x34, 0x15, 0x56, 0x15, 0x78, 0x15, 0x9b, 0x15, 0xbd, 0x15, 0xe0,
0x16, 0x03, 0x16, 0x26, 0x16, 0x49, 0x16, 0x6c, 0x16, 0x8f, 0x16,
0xb2, 0x16, 0xd6, 0x16, 0xfa, 0x17, 0x1d, 0x17, 0x41, 0x17, 0x65,
0x17, 0x89, 0x17, 0xae, 0x17, 0xd2, 0x17, 0xf7, 0x18, 0x1b, 0x18,
0x40, 0x18, 0x65, 0x18, 0x8a, 0x18, 0xaf, 0x18, 0xd5, 0x18, 0xfa,
0x19, 0x20, 0x19, 0x45, 0x19, 0x6b, 0x19, 0x91, 0x19, 0xb7, 0x19,
0xdd, 0x1a, 0x04, 0x1a, 0x2a, 0x1a, 0x51, 0x1a, 0x77, 0x1a, 0x9e,
0x1a, 0xc5, 0x1a, 0xec, 0x1b, 0x14, 0x1b, 0x3b, 0x1b, 0x63, 0x1b,
0x8a, 0x1b, 0xb2, 0x1b, 0xda, 0x1c, 0x02, 0x1c, 0x2a, 0x1c, 0x52,
0x1c, 0x7b, 0x1c, 0xa3, 0x1c, 0xcc, 0x1c, 0xf5, 0x1d, 0x1e, 0x1d,
0x47, 0x1d, 0x70, 0x1d, 0x99, 0x1d, 0xc3, 0x1d, 0xec, 0x1e, 0x16,
0x1e, 0x40, 0x1e, 0x6a, 0x1e, 0x94, 0x1e, 0xbe, 0x1e, 0xe9, 0x1f,
0x13, 0x1f, 0x3e, 0x1f, 0x69, 0x1f, 0x94, 0x1f, 0xbf, 0x1f, 0xea,
0x20, 0x15, 0x20, 0x41, 0x20, 0x6c, 0x20, 0x98, 0x20, 0xc4, 0x20,
0xf0, 0x21, 0x1c, 0x21, 0x48, 0x21, 0x75, 0x21, 0xa1, 0x21, 0xce,
0x21, 0xfb, 0x22, 0x27, 0x22, 0x55, 0x22, 0x82, 0x22, 0xaf, 0x22,
0xdd, 0x23, 0x0a, 0x23, 0x38, 0x23, 0x66, 0x23, 0x94, 0x23, 0xc2,
0x23, 0xf0, 0x24, 0x1f, 0x24, 0x4d, 0x24, 0x7c, 0x24, 0xab, 0x24,
0xda, 0x25, 0x09, 0x25, 0x38, 0x25, 0x68, 0x25, 0x97, 0x25, 0xc7,
0x25, 0xf7, 0x26, 0x27, 0x26, 0x57, 0x26, 0x87, 0x26, 0xb7, 0x26,
0xe8, 0x27, 0x18, 0x27, 0x49, 0x27, 0x7a, 0x27, 0xab, 0x27, 0xdc,
0x28, 0x0d, 0x28, 0x3f, 0x28, 0x71, 0x28, 0xa2, 0x28, 0xd4, 0x29,
0x06, 0x29, 0x38, 0x29, 0x6b, 0x29, 0x9d, 0x29, 0xd0, 0x2a, 0x02,
0x2a, 0x35, 0x2a, 0x68, 0x2a, 0x9b, 0x2a, 0xcf, 0x2b, 0x02, 0x2b,
0x36, 0x2b, 0x69, 0x2b, 0x9d, 0x2b, 0xd1, 0x2c, 0x05, 0x2c, 0x39,
0x2c, 0x6e, 0x2c, 0xa2, 0x2c, 0xd7, 0x2d, 0x0c, 0x2d, 0x41, 0x2d,
0x76, 0x2d, 0xab, 0x2d, 0xe1, 0x2e, 0x16, 0x2e, 0x4c, 0x2e, 0x82,
0x2e, 0xb7, 0x2e, 0xee, 0x2f, 0x24, 0x2f, 0x5a, 0x2f, 0x91, 0x2f,
0xc7, 0x2f, 0xfe, 0x30, 0x35, 0x30, 0x6c, 0x30, 0xa4, 0x30, 0xdb,
0x31, 0x12, 0x31, 0x4a, 0x31, 0x82, 0x31, 0xba, 0x31, 0xf2, 0x32,
0x2a, 0x32, 0x63, 0x32, 0x9b, 0x32, 0xd4, 0x33, 0x0d, 0x33, 0x46,
0x33, 0x7f, 0x33, 0xb8, 0x33, 0xf1, 0x34, 0x2b, 0x34, 0x65, 0x34,
0x9e, 0x34, 0xd8, 0x35, 0x13, 0x35, 0x4d, 0x35, 0x87, 0x35, 0xc2,
0x35, 0xfd, 0x36, 0x37, 0x36, 0x72, 0x36, 0xae, 0x36, 0xe9, 0x37,
0x24, 0x37, 0x60, 0x37, 0x9c, 0x37, 0xd7, 0x38, 0x14, 0x38, 0x50,
0x38, 0x8c, 0x38, 0xc8, 0x39, 0x05, 0x39, 0x42, 0x39, 0x7f, 0x39,
0xbc, 0x39, 0xf9, 0x3a, 0x36, 0x3a, 0x74, 0x3a, 0xb2, 0x3a, 0xef,
0x3b, 0x2d, 0x3b, 0x6b, 0x3b, 0xaa, 0x3b, 0xe8, 0x3c, 0x27, 0x3c,
0x65, 0x3c, 0xa4, 0x3c, 0xe3, 0x3d, 0x22, 0x3d, 0x61, 0x3d, 0xa1,
0x3d, 0xe0, 0x3e, 0x20, 0x3e, 0x60, 0x3e, 0xa0, 0x3e, 0xe0, 0x3f,
0x21, 0x3f, 0x61, 0x3f, 0xa2, 0x3f, 0xe2, 0x40, 0x23, 0x40, 0x64,
0x40, 0xa6, 0x40, 0xe7, 0x41, 0x29, 0x41, 0x6a, 0x41, 0xac, 0x41,
0xee, 0x42, 0x30, 0x42, 0x72, 0x42, 0xb5, 0x42, 0xf7, 0x43, 0x3a,
0x43, 0x7d, 0x43, 0xc0, 0x44, 0x03, 0x44, 0x47, 0x44, 0x8a, 0x44,
0xce, 0x45, 0x12, 0x45, 0x55, 0x45, 0x9a, 0x45, 0xde, 0x46, 0x22,
0x46, 0x67, 0x46, 0xab, 0x46, 0xf0, 0x47, 0x35, 0x47, 0x7b, 0x47,
0xc0, 0x48, 0x05, 0x48, 0x4b, 0x48, 0x91, 0x48, 0xd7, 0x49, 0x1d,
0x49, 0x63, 0x49, 0xa9, 0x49, 0xf0, 0x4a, 0x37, 0x4a, 0x7d, 0x4a,
0xc4, 0x4b, 0x0c, 0x4b, 0x53, 0x4b, 0x9a, 0x4b, 0xe2, 0x4c, 0x2a,
0x4c, 0x72, 0x4c, 0xba, 0x4d, 0x02, 0x4d, 0x4a, 0x4d, 0x93, 0x4d,
0xdc, 0x4e, 0x25, 0x4e, 0x6e, 0x4e, 0xb7, 0x4f, 0x00, 0x4f, 0x49,
0x4f, 0x93, 0x4f, 0xdd, 0x50, 0x27, 0x50, 0x71, 0x50, 0xbb, 0x51,
0x06, 0x51, 0x50, 0x51, 0x9b, 0x51, 0xe6, 0x52, 0x31, 0x52, 0x7c,
0x52, 0xc7, 0x53, 0x13, 0x53, 0x5f, 0x53, 0xaa, 0x53, 0xf6, 0x54,
0x42, 0x54, 0x8f, 0x54, 0xdb, 0x55, 0x28, 0x55, 0x75, 0x55, 0xc2,
0x56, 0x0f, 0x56, 0x5c, 0x56, 0xa9, 0x56, 0xf7, 0x57, 0x44, 0x57,
0x92, 0x57, 0xe0, 0x58, 0x2f, 0x58, 0x7d, 0x58, 0xcb, 0x59, 0x1a,
0x59, 0x69, 0x59, 0xb8, 0x5a, 0x07, 0x5a, 0x56, 0x5a, 0xa6, 0x5a,
0xf5, 0x5b, 0x45, 0x5b, 0x95, 0x5b, 0xe5, 0x5c, 0x35, 0x5c, 0x86,
0x5c, 0xd6, 0x5d, 0x27, 0x5d, 0x78, 0x5d, 0xc9, 0x5e, 0x1a, 0x5e,
0x6c, 0x5e, 0xbd, 0x5f, 0x0f, 0x5f, 0x61, 0x5f, 0xb3, 0x60, 0x05,
0x60, 0x57, 0x60, 0xaa, 0x60, 0xfc, 0x61, 0x4f, 0x61, 0xa2, 0x61,
0xf5, 0x62, 0x49, 0x62, 0x9c, 0x62, 0xf0, 0x63, 0x43, 0x63, 0x97,
0x63, 0xeb, 0x64, 0x40, 0x64, 0x94, 0x64, 0xe9, 0x65, 0x3d, 0x65,
0x92, 0x65, 0xe7, 0x66, 0x3d, 0x66, 0x92, 0x66, 0xe8, 0x67, 0x3d,
0x67, 0x93, 0x67, 0xe9, 0x68, 0x3f, 0x68, 0x96, 0x68, 0xec, 0x69,
0x43, 0x69, 0x9a, 0x69, 0xf1, 0x6a, 0x48, 0x6a, 0x9f, 0x6a, 0xf7,
0x6b, 0x4f, 0x6b, 0xa7, 0x6b, 0xff, 0x6c, 0x57, 0x6c, 0xaf, 0x6d,
0x08, 0x6d, 0x60, 0x6d, 0xb9, 0x6e, 0x12, 0x6e, 0x6b, 0x6e, 0xc4,
0x6f, 0x1e, 0x6f, 0x78, 0x6f, 0xd1, 0x70, 0x2b, 0x70, 0x86, 0x70,
0xe0, 0x71, 0x3a, 0x71, 0x95, 0x71, 0xf0, 0x72, 0x4b, 0x72, 0xa6,
0x73, 0x01, 0x73, 0x5d, 0x73, 0xb8, 0x74, 0x14, 0x74, 0x70, 0x74,
0xcc, 0x75, 0x28, 0x75, 0x85, 0x75, 0xe1, 0x76, 0x3e, 0x76, 0x9b,
0x76, 0xf8, 0x77, 0x56, 0x77, 0xb3, 0x78, 0x11, 0x78, 0x6e, 0x78,
0xcc, 0x79, 0x2a, 0x79, 0x89, 0x79, 0xe7, 0x7a, 0x46, 0x7a, 0xa5,
0x7b, 0x04, 0x7b, 0x63, 0x7b, 0xc2, 0x7c, 0x21, 0x7c, 0x81, 0x7c,
0xe1, 0x7d, 0x41, 0x7d, 0xa1, 0x7e, 0x01, 0x7e, 0x62, 0x7e, 0xc2,
0x7f, 0x23, 0x7f, 0x84, 0x7f, 0xe5, 0x80, 0x47, 0x80, 0xa8, 0x81,
0x0a, 0x81, 0x6b, 0x81, 0xcd, 0x82, 0x30, 0x82, 0x92, 0x82, 0xf4,
0x83, 0x57, 0x83, 0xba, 0x84, 0x1d, 0x84, 0x80, 0x84, 0xe3, 0x85,
0x47, 0x85, 0xab, 0x86, 0x0e, 0x86, 0x72, 0x86, 0xd7, 0x87, 0x3b,
0x87, 0x9f, 0x88, 0x04, 0x88, 0x69, 0x88, 0xce, 0x89, 0x33, 0x89,
0x99, 0x89, 0xfe, 0x8a, 0x64, 0x8a, 0xca, 0x8b, 0x30, 0x8b, 0x96,
0x8b, 0xfc, 0x8c, 0x63, 0x8c, 0xca, 0x8d, 0x31, 0x8d, 0x98, 0x8d,
0xff, 0x8e, 0x66, 0x8e, 0xce, 0x8f, 0x36, 0x8f, 0x9e, 0x90, 0x06,
0x90, 0x6e, 0x90, 0xd6, 0x91, 0x3f, 0x91, 0xa8, 0x92, 0x11, 0x92,
0x7a, 0x92, 0xe3, 0x93, 0x4d, 0x93, 0xb6, 0x94, 0x20, 0x94, 0x8a,
0x94, 0xf4, 0x95, 0x5f, 0x95, 0xc9, 0x96, 0x34, 0x96, 0x9f, 0x97,
0x0a, 0x97, 0x75, 0x97, 0xe0, 0x98, 0x4c, 0x98, 0xb8, 0x99, 0x24,
0x99, 0x90, 0x99, 0xfc, 0x9a, 0x68, 0x9a, 0xd5, 0x9b, 0x42, 0x9b,
0xaf, 0x9c, 0x1c, 0x9c, 0x89, 0x9c, 0xf7, 0x9d, 0x64, 0x9d, 0xd2,
0x9e, 0x40, 0x9e, 0xae, 0x9f, 0x1d, 0x9f, 0x8b, 0x9f, 0xfa, 0xa0,
0x69, 0xa0, 0xd8, 0xa1, 0x47, 0xa1, 0xb6, 0xa2, 0x26, 0xa2, 0x96,
0xa3, 0x06, 0xa3, 0x76, 0xa3, 0xe6, 0xa4, 0x56, 0xa4, 0xc7, 0xa5,
0x38, 0xa5, 0xa9, 0xa6, 0x1a, 0xa6, 0x8b, 0xa6, 0xfd, 0xa7, 0x6e,
0xa7, 0xe0, 0xa8, 0x52, 0xa8, 0xc4, 0xa9, 0x37, 0xa9, 0xa9, 0xaa,
0x1c, 0xaa, 0x8f, 0xab, 0x02, 0xab, 0x75, 0xab, 0xe9, 0xac, 0x5c,
0xac, 0xd0, 0xad, 0x44, 0xad, 0xb8, 0xae, 0x2d, 0xae, 0xa1, 0xaf,
0x16, 0xaf, 0x8b, 0xb0, 0x00, 0xb0, 0x75, 0xb0, 0xea, 0xb1, 0x60,
0xb1, 0xd6, 0xb2, 0x4b, 0xb2, 0xc2, 0xb3, 0x38, 0xb3, 0xae, 0xb4,
0x25, 0xb4, 0x9c, 0xb5, 0x13, 0xb5, 0x8a, 0xb6, 0x01, 0xb6, 0x79,
0xb6, 0xf0, 0xb7, 0x68, 0xb7, 0xe0, 0xb8, 0x59, 0xb8, 0xd1, 0xb9,
0x4a, 0xb9, 0xc2, 0xba, 0x3b, 0xba, 0xb5, 0xbb, 0x2e, 0xbb, 0xa7,
0xbc, 0x21, 0xbc, 0x9b, 0xbd, 0x15, 0xbd, 0x8f, 0xbe, 0x0a, 0xbe,
0x84, 0xbe, 0xff, 0xbf, 0x7a, 0xbf, 0xf5, 0xc0, 0x70, 0xc0, 0xec,
0xc1, 0x67, 0xc1, 0xe3, 0xc2, 0x5f, 0xc2, 0xdb, 0xc3, 0x58, 0xc3,
0xd4, 0xc4, 0x51, 0xc4, 0xce, 0xc5, 0x4b, 0xc5, 0xc8, 0xc6, 0x46,
0xc6, 0xc3, 0xc7, 0x41, 0xc7, 0xbf, 0xc8, 0x3d, 0xc8, 0xbc, 0xc9,
0x3a, 0xc9, 0xb9, 0xca, 0x38, 0xca, 0xb7, 0xcb, 0x36, 0xcb, 0xb6,
0xcc, 0x35, 0xcc, 0xb5, 0xcd, 0x35, 0xcd, 0xb5, 0xce, 0x36, 0xce,
0xb6, 0xcf, 0x37, 0xcf, 0xb8, 0xd0, 0x39, 0xd0, 0xba, 0xd1, 0x3c,
0xd1, 0xbe, 0xd2, 0x3f, 0xd2, 0xc1, 0xd3, 0x44, 0xd3, 0xc6, 0xd4,
0x49, 0xd4, 0xcb, 0xd5, 0x4e, 0xd5, 0xd1, 0xd6, 0x55, 0xd6, 0xd8,
0xd7, 0x5c, 0xd7, 0xe0, 0xd8, 0x64, 0xd8, 0xe8, 0xd9, 0x6c, 0xd9,
0xf1, 0xda, 0x76, 0xda, 0xfb, 0xdb, 0x80, 0xdc, 0x05, 0xdc, 0x8a,
0xdd, 0x10, 0xdd, 0x96, 0xde, 0x1c, 0xde, 0xa2, 0xdf, 0x29, 0xdf,
0xaf, 0xe0, 0x36, 0xe0, 0xbd, 0xe1, 0x44, 0xe1, 0xcc, 0xe2, 0x53,
0xe2, 0xdb, 0xe3, 0x63, 0xe3, 0xeb, 0xe4, 0x73, 0xe4, 0xfc, 0xe5,
0x84, 0xe6, 0x0d, 0xe6, 0x96, 0xe7, 0x1f, 0xe7, 0xa9, 0xe8, 0x32,
0xe8, 0xbc, 0xe9, 0x46, 0xe9, 0xd0, 0xea, 0x5b, 0xea, 0xe5, 0xeb,
0x70, 0xeb, 0xfb, 0xec, 0x86, 0xed, 0x11, 0xed, 0x9c, 0xee, 0x28,
0xee, 0xb4, 0xef, 0x40, 0xef, 0xcc, 0xf0, 0x58, 0xf0, 0xe5, 0xf1,
0x72, 0xf1, 0xff, 0xf2, 0x8c, 0xf3, 0x19, 0xf3, 0xa7, 0xf4, 0x34,
0xf4, 0xc2, 0xf5, 0x50, 0xf5, 0xde, 0xf6, 0x6d, 0xf6, 0xfb, 0xf7,
0x8a, 0xf8, 0x19, 0xf8, 0xa8, 0xf9, 0x38, 0xf9, 0xc7, 0xfa, 0x57,
0xfa, 0xe7, 0xfb, 0x77, 0xfc, 0x07, 0xfc, 0x98, 0xfd, 0x29, 0xfd,
0xba, 0xfe, 0x4b, 0xfe, 0xdc, 0xff, 0x6d, 0xff, 0xff
};
char
*description,
**options,
**profiles,
**properties;
const char
*option,
*property;
DrawingWand
*drawing_wand;
ExceptionType
severity;
MagickWand
*clone_wand,
*magick_wand;
PixelIterator
*iterator;
PixelWand
*background,
*border,
*fill,
**pixels;
register ssize_t
i;
unsigned char
*profile;
unsigned int
status;
size_t
columns,
delay,
length,
number_options,
number_profiles,
number_properties,
number_wands,
rows;
(void) argc;
(void) argv;
MagickWandGenesis();
magick_wand=NewMagickWand();
(void) MagickSetSize(magick_wand,640,480);
(void) MagickGetSize(magick_wand,&columns,&rows);
if ((columns != 640) || (rows != 480))
{
(void) FormatLocaleFile(stderr,"Unexpected magick wand size\n");
exit(1);
}
(void) FormatLocaleFile(stdout,"Reading images...\n");
{
char
*p,
path[MaxTextExtent];
path[0]=0;
p=getenv("SRCDIR");
if (p != (char *) NULL)
{
(void) strcpy(path,p);
if (path[strlen(path)-1] != '/')
(void) strcat(path,"/");
}
(void) strcat(path,"sequence.miff");
status=MagickReadImage(magick_wand,path);
}
if (status == MagickFalse)
ThrowAPIException(magick_wand);
if (MagickGetNumberImages(magick_wand) != 5)
(void) FormatLocaleFile(stderr,"read %.20g images; expected 5\n",
(double) MagickGetNumberImages(magick_wand));
(void) FormatLocaleFile(stdout,"Iterate forward...\n");
MagickResetIterator(magick_wand);
while (MagickNextImage(magick_wand) != MagickFalse)
(void) FormatLocaleFile(stdout,"index %.20g scene %.20g\n",(double)
MagickGetIteratorIndex(magick_wand),(double)
MagickGetImageScene(magick_wand));
(void) FormatLocaleFile(stdout,"Iterate reverse...\n");
while (MagickPreviousImage(magick_wand) != MagickFalse)
(void) FormatLocaleFile(stdout,"index %.20g scene %.20g\n",(double)
MagickGetIteratorIndex(magick_wand),(double)
MagickGetImageScene(magick_wand));
(void) FormatLocaleFile(stdout,"Remove scene 1...\n");
(void) MagickSetIteratorIndex(magick_wand,1);
clone_wand=MagickGetImage(magick_wand);
status=MagickRemoveImage(magick_wand);
if (status == MagickFalse)
ThrowAPIException(magick_wand);
MagickResetIterator(magick_wand);
while (MagickNextImage(magick_wand) != MagickFalse)
(void) FormatLocaleFile(stdout,"index %.20g scene %.20g\n",(double)
MagickGetIteratorIndex(magick_wand),(double)
MagickGetImageScene(magick_wand));
(void) FormatLocaleFile(stdout,"Insert scene 1 back in sequence...\n");
(void) MagickSetIteratorIndex(magick_wand,0);
status=MagickAddImage(magick_wand,clone_wand);
if (status == MagickFalse)
ThrowAPIException(magick_wand);
MagickResetIterator(magick_wand);
while (MagickNextImage(magick_wand) != MagickFalse)
(void) FormatLocaleFile(stdout,"index %.20g scene %.20g\n",(double)
MagickGetIteratorIndex(magick_wand),(double)
MagickGetImageScene(magick_wand));
(void) FormatLocaleFile(stdout,"Set scene 2 to scene 1...\n");
(void) MagickSetIteratorIndex(magick_wand,2);
status=MagickSetImage(magick_wand,clone_wand);
clone_wand=DestroyMagickWand(clone_wand);
if (status == MagickFalse)
ThrowAPIException(magick_wand);
MagickResetIterator(magick_wand);
while (MagickNextImage(magick_wand) != MagickFalse)
(void) FormatLocaleFile(stdout,"index %.20g scene %.20g\n",(double)
MagickGetIteratorIndex(magick_wand),(double)
MagickGetImageScene(magick_wand));
(void) FormatLocaleFile(stdout,"Apply image processing options...\n");
status=MagickCropImage(magick_wand,60,60,10,10);
if (status == MagickFalse)
ThrowAPIException(magick_wand);
MagickResetIterator(magick_wand);
background=NewPixelWand();
status=PixelSetColor(background,"#000000");
if (status == MagickFalse)
ThrowAPIException(magick_wand);
status=MagickRotateImage(magick_wand,background,90.0);
if (status == MagickFalse)
ThrowAPIException(magick_wand);
border=NewPixelWand();
(void) PixelSetColor(background,"green");
(void) PixelSetColor(border,"black");
status=MagickFloodfillPaintImage(magick_wand,CompositeChannels,background,
0.01*QuantumRange,border,0,0,MagickFalse);
if (status == MagickFalse)
ThrowAPIException(magick_wand);
background=DestroyPixelWand(background);
border=DestroyPixelWand(border);
drawing_wand=NewDrawingWand();
(void) PushDrawingWand(drawing_wand);
(void) DrawRotate(drawing_wand,45);
(void) DrawSetFontSize(drawing_wand,18);
fill=NewPixelWand();
(void) PixelSetColor(fill,"green");
(void) DrawSetFillColor(drawing_wand,fill);
fill=DestroyPixelWand(fill);
(void) DrawAnnotation(drawing_wand,15,5,(const unsigned char *) "Magick");
(void) PopDrawingWand(drawing_wand);
(void) MagickSetIteratorIndex(magick_wand,1);
status=MagickDrawImage(magick_wand,drawing_wand);
if (status == MagickFalse)
ThrowAPIException(magick_wand);
status=MagickAnnotateImage(magick_wand,drawing_wand,70,5,90,"Image");
if (status == MagickFalse)
ThrowAPIException(magick_wand);
drawing_wand=DestroyDrawingWand(drawing_wand);
{
unsigned char
pixels[27],
primary_colors[27] =
{
0, 0, 0,
0, 0, 255,
0, 255, 0,
0, 255, 255,
255, 255, 255,
255, 0, 0,
255, 0, 255,
255, 255, 0,
128, 128, 128,
};
(void) MagickSetIteratorIndex(magick_wand,2);
status=MagickImportImagePixels(magick_wand,10,10,3,3,"RGB",CharPixel,
primary_colors);
if (status == MagickFalse)
ThrowAPIException(magick_wand);
status=MagickExportImagePixels(magick_wand,10,10,3,3,"RGB",CharPixel,
pixels);
if (status == MagickFalse)
ThrowAPIException(magick_wand);
for (i=0; i < 9; i++)
if (pixels[i] != primary_colors[i])
{
(void) FormatLocaleFile(stderr,
"Get pixels does not match set pixels\n");
exit(1);
}
}
(void) MagickSetIteratorIndex(magick_wand,3);
status=MagickResizeImage(magick_wand,50,50,UndefinedFilter,1.0);
if (status == MagickFalse)
ThrowAPIException(magick_wand);
MagickResetIterator(magick_wand);
while (MagickNextImage(magick_wand) != MagickFalse)
{
(void) MagickSetImageDepth(magick_wand,8);
(void) MagickSetImageCompression(magick_wand,RLECompression);
}
MagickResetIterator(magick_wand);
(void) MagickSetIteratorIndex(magick_wand,4);
(void) FormatLocaleFile(stdout,
"Utilitize pixel iterator to draw diagonal...\n");
iterator=NewPixelIterator(magick_wand);
if (iterator == (PixelIterator *) NULL)
ThrowAPIException(magick_wand);
pixels=PixelGetNextIteratorRow(iterator,&number_wands);
for (i=0; pixels != (PixelWand **) NULL; i++)
{
(void) PixelSetColor(pixels[i],"#224466");
(void) PixelSyncIterator(iterator);
pixels=PixelGetNextIteratorRow(iterator,&number_wands);
}
(void) PixelSyncIterator(iterator);
iterator=DestroyPixelIterator(iterator);
(void) FormatLocaleFile(stdout,"Write to wandtest_out.miff...\n");
status=MagickWriteImages(magick_wand,"wandtest_out.miff",MagickTrue);
if (status == MagickFalse)
ThrowAPIException(magick_wand);
(void) FormatLocaleFile(stdout,
"Change image format from \"MIFF\" to \"GIF\"...\n");
status=MagickSetImageFormat(magick_wand,"GIF");
if (status == MagickFalse)
ThrowAPIException(magick_wand);
(void) FormatLocaleFile(stdout,"Set delay between frames to %d seconds...\n",
WandDelay);
status=MagickSetImageDelay(magick_wand,100*WandDelay);
if (status == MagickFalse)
ThrowAPIException(magick_wand);
delay=MagickGetImageDelay(magick_wand);
if (delay != (100*WandDelay))
{
(void) FormatLocaleFile(stderr,"Get delay does not match set delay\n");
exit(1);
}
(void) FormatLocaleFile(stdout,"Write to wandtest_out_0.gif...\n");
status=MagickWriteImages(magick_wand,"wandtest_out.gif",MagickTrue);
if (status == MagickFalse)
ThrowAPIException(magick_wand);
(void) FormatLocaleFile(stdout,"Set, list, get, and delete wand option...\n");
status=MagickSetOption(magick_wand,"wand:custom-option",CustomOption);
if (status == MagickFalse)
ThrowAPIException(magick_wand);
option=MagickGetOption(magick_wand,"wand:custom-option");
if ((option == (const char *) NULL) ||
(strlen(option) != strlen(CustomOption)) ||
(memcmp(option,CustomOption,strlen(option)) != 0))
{
(void) FormatLocaleFile(stderr,"Option does not match\n");
exit(1);
}
options=MagickGetOptions(magick_wand,"*",&number_options);
if (options != (char **) NULL)
{
for (i=0; i < (ssize_t) number_options; i++)
{
(void) FormatLocaleFile(stdout," %s\n",options[i]);
options[i]=(char *) MagickRelinquishMemory(options[i]);
}
options=(char **) MagickRelinquishMemory(options);
}
status=MagickDeleteOption(magick_wand,"wand:custom-option");
if (status == MagickFalse)
ThrowAPIException(magick_wand);
(void) FormatLocaleFile(stdout,
"Set, list, get, and delete wand property...\n");
status=MagickSetImageProperty(magick_wand,"wand:custom-property",
CustomProperty);
if (status == MagickFalse)
ThrowAPIException(magick_wand);
property=MagickGetImageProperty(magick_wand,"wand:custom-property");
if ((property == (const char *) NULL) ||
(strlen(property) != strlen(CustomProperty)) ||
(memcmp(property,CustomProperty,strlen(property)) != 0))
{
(void) FormatLocaleFile(stderr,"Property does not match\n");
exit(1);
}
properties=MagickGetImageProperties(magick_wand,"*",&number_properties);
if (properties != (char **) NULL)
{
for (i=0; i < (ssize_t) number_properties; i++)
{
(void) FormatLocaleFile(stdout," %s\n",properties[i]);
properties[i]=(char *) MagickRelinquishMemory(properties[i]);
}
properties=(char **) MagickRelinquishMemory(properties);
}
status=MagickDeleteImageProperty(magick_wand,"wand:custom-property");
if (status == MagickFalse)
ThrowAPIException(magick_wand);
(void) FormatLocaleFile(stdout,
"Set, list, get, and remove sRGB color profile...\n");
status=MagickSetImageProfile(magick_wand,"sRGB",sRGBProfile,
sizeof(sRGBProfile));
if (status == MagickFalse)
ThrowAPIException(magick_wand);
profile=(unsigned char *) MagickGetImageProfile(magick_wand,"sRGB",&length);
if ((profile == (unsigned char *) NULL) || (length != sizeof(sRGBProfile)) ||
(memcmp(profile,sRGBProfile,length) != 0))
{
(void) FormatLocaleFile(stderr,"Profile does not match\n");
exit(1);
}
profile=(unsigned char *) MagickRelinquishMemory(profile);
profiles=MagickGetImageProfiles(magick_wand,"*",&number_profiles);
if (profiles != (char **) NULL)
{
for (i=0; i < (ssize_t) number_profiles; i++)
{
(void) FormatLocaleFile(stdout," %s\n",profiles[i]);
profiles[i]=(char *) MagickRelinquishMemory(profiles[i]);
}
profiles=(char **) MagickRelinquishMemory(profiles);
}
profile=(unsigned char *) MagickRemoveImageProfile(magick_wand,"sRGB",
&length);
if ((profile == (unsigned char *) NULL) || (length != sizeof(sRGBProfile)) ||
(memcmp(profile,sRGBProfile,length) != 0))
{
(void) FormatLocaleFile(stderr,"Profile does not match\n");
exit(1);
}
profile=(unsigned char *) MagickRelinquishMemory(profile);
magick_wand=DestroyMagickWand(magick_wand);
(void) FormatLocaleFile(stdout,"Wand tests pass.\n");
return(0);
}
int main(int ac, char **av){
uint32_t *texture=malloc(TEXTURESIZE*TEXTURESIZE*4);
MagickWandGenesis();
MagickWand *wand=NewMagickWand();
MagickReadImage(wand,"fire.png");
MagickExportImagePixels(wand,0,0,512,512,"ARGB",CharPixel,texture);
DestroyMagickWand(wand);
FILE *out_pipe=fopen("/dev/shm/zoom/video","wb");
// don't forget to change for 128x64 pixels per 1 bit
uint8_t *screen=malloc(640*480*3);
uint32_t *back_screen=malloc(640*480*3*4);
int q,w,ox,oy;
int out_pos;
int frame_num=time(NULL);
int rot;
int fps,fps_show,fps_stamp;
int si_int,co_int,zoom_int;
uint32_t v,l=640*480*3;
int interlace_state=0;
uint8_t *tex_luma=malloc(TEXTURESIZE*TEXTURESIZE);
uint8_t *tex_alpha=malloc(TEXTURESIZE*TEXTURESIZE);
for(q=0;q<TEXTURESIZE*TEXTURESIZE;q++){
tex_alpha[q]=(texture[q]&0xFF);
v=(((texture[q]>>8)&0xFF)*0.2989+((texture[q]>>16)&0xFF)*0.5870+((texture[q]>>24)&0xFF)*0.1140);
if(v>255){v=255;}
tex_luma[q]=v;
}
while(1){//main loop
for(w=(interlace_state>>1)&1;w<480;w+=2){
for(q=((interlace_state+w))&1;q<640;q+=2){
out_pos=(q+w*640)*3;
screen[out_pos+0]=0;
//screen[out_pos+1]=0;
//screen[out_pos+2]=0;
}
}
int g;
int alpha_pixel_int;
int alpha_int;
int tex_pos;
uint32_t tex_pixel;
for(g=0;g<8;g++){
alpha_int=(sin(frame_num/12.3+g*123)*.5+.5)*255.0;
if(alpha_int>255){alpha_int=255;}
if(alpha_int<0){alpha_int=0;}
si_int=sin(frame_num/100.0+g*123123)*127.0;
co_int=cos(frame_num/100.0+g*123123)*127.0;
zoom_int=alpha_int*2+1;
for(w=(interlace_state>>1)&1;w<480;w+=2){
for(q=((interlace_state+w))&1;q<640;q+=2){
out_pos=(q+w*640)*3;
/*co,si
-si,co*/
ox=(q*co_int/zoom_int+w*si_int+frame_num*7)>>8;
oy=(q*(-si_int)+w*co_int/zoom_int+frame_num*3)>>8;
tex_pos=(ox&TEXTUREMASK)|((oy&TEXTUREMASK)<<TEXTURESHIFT);
alpha_pixel_int=tex_alpha[tex_pos]*alpha_int;
v=((tex_luma[tex_pos]*alpha_pixel_int)>>16);
v+=screen[out_pos+0];
if(v>255){v=255;}
screen[out_pos+0]=v;
screen[out_pos+1]=v;
screen[out_pos+2]=v;
}
}
}
int v,l=640*480*3;
/*
for(q=0;q<l;q++){
v=back_screen[q];
if(v>255){v=255;}
screen[q]=v;
}
*/
fwrite(screen,1,640*480*3,out_pipe);
frame_num++;
interlace_state++;
fps++;
int current_time=time(NULL);
if(current_time!=fps_stamp){
fps_stamp=current_time;
fps_show=fps;
fps=0;
fprintf(stderr,"Current FPS: %d\n",fps_show);
}
}
return EXIT_SUCCESS;
}
static int scan_image (const char *filename)
{
if(exit_code == 3)
return(-1);
int found = 0;
MagickWand *images = NewMagickWand();
if(!MagickReadImage(images, filename) && dump_error(images))
return(-1);
unsigned seq, n = MagickGetNumberImages(images);
for(seq = 0; seq < n; seq++) {
if(exit_code == 3)
return(-1);
if(!MagickSetIteratorIndex(images, seq) && dump_error(images))
return(-1);
zbar_image_t *zimage = zbar_image_create();
assert(zimage);
zbar_image_set_format(zimage, zbar_fourcc('Y','8','0','0'));
int width = MagickGetImageWidth(images);
int height = MagickGetImageHeight(images);
zbar_image_set_size(zimage, width, height);
// extract grayscale image pixels
// FIXME color!! ...preserve most color w/422P
// (but only if it's a color image)
size_t bloblen = width * height;
unsigned char *blob = malloc(bloblen);
zbar_image_set_data(zimage, blob, bloblen, zbar_image_free_data);
if(!MagickExportImagePixels(images, 0, 0, width, height,
"I", CharPixel, blob))
return(-1);
if(xmllvl == 1) {
xmllvl++;
printf("<source href='%s'>\n", filename);
}
zbar_process_image(processor, zimage);
// output result data
const zbar_symbol_t *sym = zbar_image_first_symbol(zimage);
for(; sym; sym = zbar_symbol_next(sym)) {
zbar_symbol_type_t typ = zbar_symbol_get_type(sym);
unsigned len = zbar_symbol_get_data_length(sym);
if(typ == ZBAR_PARTIAL)
continue;
else if(xmllvl <= 0) {
if(!xmllvl)
printf("%s:", zbar_get_symbol_name(typ));
if(len &&
fwrite(zbar_symbol_get_data(sym), len, 1, stdout) != 1) {
exit_code = 1;
return(-1);
}
}
else {
if(xmllvl < 3) {
xmllvl++;
printf("<index num='%u'>\n", seq);
}
zbar_symbol_xml(sym, &xmlbuf, &xmlbuflen);
if(fwrite(xmlbuf, xmlbuflen, 1, stdout) != 1) {
exit_code = 1;
return(-1);
}
}
printf("\n");
found++;
num_symbols++;
}
if(xmllvl > 2) {
xmllvl--;
printf("</index>\n");
}
fflush(stdout);
zbar_image_destroy(zimage);
num_images++;
if(zbar_processor_is_visible(processor)) {
int rc = zbar_processor_user_wait(processor, -1);
if(rc < 0 || rc == 'q' || rc == 'Q')
exit_code = 3;
}
}
if(xmllvl > 1) {
xmllvl--;
printf("</source>\n");
}
if(!found)
notfound++;
DestroyMagickWand(images);
return(0);
}
static int
ngx_http_video_thumbextractor_get_thumb(ngx_http_video_thumbextractor_loc_conf_t *cf, ngx_http_video_thumbextractor_file_info_t *info, int64_t second, ngx_uint_t width, ngx_uint_t height, caddr_t *out_buffer, size_t *out_len, ngx_pool_t *temp_pool, ngx_log_t *log)
{
int rc, videoStream, frameFinished = 0, frameDecoded = 0;
unsigned int i;
AVFormatContext *pFormatCtx = NULL;
AVCodecContext *pCodecCtx = NULL;
AVCodec *pCodec = NULL;
AVFrame *pFrame = NULL, *pFrameRGB = NULL;
uint8_t *buffer = NULL;
AVPacket packet;
size_t uncompressed_size;
float scale = 0.0, new_scale = 0.0, scale_sws = 0.0, scale_w = 0.0, scale_h = 0.0;
int sws_width = 0, sws_height = 0;
ngx_flag_t needs_crop = 0;
MagickWand *m_wand = NULL;
MagickBooleanType mrc;
unsigned char *bufferAVIO = NULL;
AVIOContext *pAVIOCtx = NULL;
char *filename = (char *) info->filename->data;
// Open video file
if ((info->fd = fopen(filename, "rb")) == NULL) {
ngx_log_error(NGX_LOG_ERR, log, 0, "video thumb extractor module: Couldn't open file %s", filename);
rc = EXIT_FAILURE;
goto exit;
}
// Get file size
fseek(info->fd, 0, SEEK_END);
info->size = ftell(info->fd) - info->offset;
fseek(info->fd, 0, SEEK_SET);
pFormatCtx = avformat_alloc_context();
bufferAVIO = (unsigned char *) av_malloc(NGX_HTTP_VIDEO_THUMBEXTRACTOR_BUFFER_SIZE * sizeof(unsigned char));
if ((pFormatCtx == NULL) || (bufferAVIO == NULL)) {
ngx_log_error(NGX_LOG_ERR, log, 0, "video thumb extractor module: Couldn't alloc AVIO buffer");
rc = NGX_ERROR;
goto exit;
}
pAVIOCtx = avio_alloc_context(bufferAVIO, NGX_HTTP_VIDEO_THUMBEXTRACTOR_BUFFER_SIZE, 0, info, ngx_http_video_thumbextractor_read_data_from_file, NULL, ngx_http_video_thumbextractor_seek_data_from_file);
if (pAVIOCtx == NULL) {
ngx_log_error(NGX_LOG_ERR, log, 0, "video thumb extractor module: Couldn't alloc AVIO context");
rc = NGX_ERROR;
goto exit;
}
pFormatCtx->pb = pAVIOCtx;
// Open video file
if ((rc = avformat_open_input(&pFormatCtx, filename, NULL, NULL)) != 0) {
ngx_log_error(NGX_LOG_ERR, log, 0, "video thumb extractor module: Couldn't open file %s, error: %d", filename, rc);
rc = (rc == AVERROR(NGX_ENOENT)) ? NGX_HTTP_VIDEO_THUMBEXTRACTOR_FILE_NOT_FOUND : NGX_ERROR;
goto exit;
}
// Retrieve stream information
#if LIBAVFORMAT_VERSION_INT <= AV_VERSION_INT(53, 5, 0)
if (av_find_stream_info(pFormatCtx) < 0) {
#else
if (avformat_find_stream_info(pFormatCtx, NULL) < 0) {
#endif
ngx_log_error(NGX_LOG_ERR, log, 0, "video thumb extractor module: Couldn't find stream information");
rc = NGX_ERROR;
goto exit;
}
if ((pFormatCtx->duration > 0) && ((((float_t) pFormatCtx->duration / AV_TIME_BASE) - second)) < 0.1) {
ngx_log_error(NGX_LOG_WARN, log, 0, "video thumb extractor module: seconds greater than duration");
rc = NGX_HTTP_VIDEO_THUMBEXTRACTOR_SECOND_NOT_FOUND;
goto exit;
}
// Find the first video stream
videoStream = -1;
for (i = 0; i < pFormatCtx->nb_streams; i++) {
if (pFormatCtx->streams[i]->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
videoStream = i;
break;
}
}
if (videoStream == -1) {
ngx_log_error(NGX_LOG_ERR, log, 0, "video thumb extractor module: Didn't find a video stream");
rc = NGX_ERROR;
goto exit;
}
// Get a pointer to the codec context for the video stream
pCodecCtx = pFormatCtx->streams[videoStream]->codec;
// Find the decoder for the video stream
if ((pCodec = avcodec_find_decoder(pCodecCtx->codec_id)) == NULL) {
ngx_log_error(NGX_LOG_ERR, log, 0, "video thumb extractor module: Codec %d not found", pCodecCtx->codec_id);
rc = NGX_ERROR;
goto exit;
}
// Open codec
#if LIBAVCODEC_VERSION_INT <= AV_VERSION_INT(53, 8, 0)
if ((rc = avcodec_open(pCodecCtx, pCodec)) < 0) {
#else
if ((rc = avcodec_open2(pCodecCtx, pCodec, NULL)) < 0) {
#endif
ngx_log_error(NGX_LOG_ERR, log, 0, "video thumb extractor module: Could not open codec, error %d", rc);
rc = NGX_ERROR;
goto exit;
}
if (height == 0) {
// keep original format
width = pCodecCtx->width;
height = pCodecCtx->height;
} else if (width == 0) {
// calculate width related with original aspect
width = height * pCodecCtx->width / pCodecCtx->height;
}
if ((width < 16) || (height < 16)) {
ngx_log_error(NGX_LOG_ERR, log, 0, "video thumb extractor module: Very small size requested, %d x %d", width, height);
rc = NGX_ERROR;
goto exit;
}
scale = (float) pCodecCtx->width / pCodecCtx->height;
new_scale = (float) width / height;
sws_width = width;
sws_height = height;
if (scale != new_scale) {
scale_w = (float) width / pCodecCtx->width;
scale_h = (float) height / pCodecCtx->height;
scale_sws = (scale_w > scale_h) ? scale_w : scale_h;
sws_width = pCodecCtx->width * scale_sws + 0.5;
sws_height = pCodecCtx->height * scale_sws + 0.5;
needs_crop = 1;
}
// Allocate video frame
pFrame = avcodec_alloc_frame();
// Allocate an AVFrame structure
pFrameRGB = avcodec_alloc_frame();
if ((pFrame == NULL) || (pFrameRGB == NULL)) {
ngx_log_error(NGX_LOG_ERR, log, 0, "video thumb extractor module: Could not alloc frame memory");
rc = NGX_ERROR;
goto exit;
}
// Determine required buffer size and allocate buffer
uncompressed_size = avpicture_get_size(PIX_FMT_RGB24, sws_width, sws_height) * sizeof(uint8_t);
buffer = (uint8_t *) av_malloc(uncompressed_size);
// Assign appropriate parts of buffer to image planes in pFrameRGB
// Note that pFrameRGB is an AVFrame, but AVFrame is a superset of AVPicture
avpicture_fill((AVPicture *) pFrameRGB, buffer, PIX_FMT_RGB24, sws_width, sws_height);
if ((rc = av_seek_frame(pFormatCtx, -1, second * AV_TIME_BASE, cf->next_time ? 0 : AVSEEK_FLAG_BACKWARD)) < 0) {
ngx_log_error(NGX_LOG_ERR, log, 0, "video thumb extractor module: Seek to an invalid time, error: %d", rc);
rc = NGX_HTTP_VIDEO_THUMBEXTRACTOR_SECOND_NOT_FOUND;
goto exit;
}
int64_t second_on_stream_time_base = second * pFormatCtx->streams[videoStream]->time_base.den / pFormatCtx->streams[videoStream]->time_base.num;
// Find the nearest frame
rc = NGX_HTTP_VIDEO_THUMBEXTRACTOR_SECOND_NOT_FOUND;
while (!frameFinished && av_read_frame(pFormatCtx, &packet) >= 0) {
// Is this a packet from the video stream?
if (packet.stream_index == videoStream) {
// Decode video frame
avcodec_decode_video2(pCodecCtx, pFrame, &frameFinished, &packet);
// Did we get a video frame?
if (frameFinished) {
frameDecoded = 1;
if (!cf->only_keyframe && (pFrame->pkt_pts < second_on_stream_time_base)) {
frameFinished = 0;
}
}
}
// Free the packet that was allocated by av_read_frame
av_free_packet(&packet);
}
av_free_packet(&packet);
if (frameDecoded) {
// Convert the image from its native format to RGB
struct SwsContext *img_resample_ctx = sws_getContext(pCodecCtx->width, pCodecCtx->height, pCodecCtx->pix_fmt,
sws_width, sws_height, PIX_FMT_RGB24, SWS_BICUBIC, NULL, NULL, NULL);
sws_scale(img_resample_ctx, (const uint8_t * const *) pFrame->data, pFrame->linesize, 0, pCodecCtx->height, pFrameRGB->data, pFrameRGB->linesize);
sws_freeContext(img_resample_ctx);
if (needs_crop) {
MagickWandGenesis();
mrc = MagickTrue;
if ((m_wand = NewMagickWand()) == NULL){
ngx_log_error(NGX_LOG_ERR, log, 0, "video thumb extractor module: Could not allocate MagickWand memory");
mrc = MagickFalse;
}
if (mrc == MagickTrue) {
mrc = MagickConstituteImage(m_wand, sws_width, sws_height, NGX_HTTP_VIDEO_THUMBEXTRACTOR_RGB, CharPixel, pFrameRGB->data[0]);
}
if (mrc == MagickTrue) {
mrc = MagickSetImageGravity(m_wand, CenterGravity);
}
if (mrc == MagickTrue) {
mrc = MagickCropImage(m_wand, width, height, (sws_width-width)/2, (sws_height-height)/2);
}
if (mrc == MagickTrue) {
mrc = MagickExportImagePixels(m_wand, 0, 0, width, height, NGX_HTTP_VIDEO_THUMBEXTRACTOR_RGB, CharPixel, pFrameRGB->data[0]);
}
/* Clean up */
if (m_wand) {
m_wand = DestroyMagickWand(m_wand);
}
MagickWandTerminus();
if (mrc != MagickTrue) {
ngx_log_error(NGX_LOG_ERR, log, 0, "video thumb extractor module: Error cropping image");
goto exit;
}
}
// Compress to jpeg
if (ngx_http_video_thumbextractor_jpeg_compress(cf, pFrameRGB->data[0], pCodecCtx->width, pCodecCtx->height, width, height, out_buffer, out_len, uncompressed_size, temp_pool) == 0) {
rc = NGX_OK;
}
}
exit:
if ((info->fd != NULL) && (fclose(info->fd) != 0)) {
ngx_log_error(NGX_LOG_ERR, log, 0, "video thumb extractor module: Couldn't close file %s", filename);
rc = EXIT_FAILURE;
}
/* destroy unneeded objects */
// Free the RGB image
if (buffer != NULL) av_free(buffer);
if (pFrameRGB != NULL) av_freep(&pFrameRGB);
// Free the YUV frame
if (pFrame != NULL) av_freep(&pFrame);
// Close the codec
if (pCodecCtx != NULL) avcodec_close(pCodecCtx);
// Close the video file
if (pFormatCtx != NULL) {
#if LIBAVFORMAT_VERSION_INT <= AV_VERSION_INT(53, 5, 0)
av_close_input_file(pFormatCtx);
#else
avformat_close_input(&pFormatCtx);
#endif
}
// Free AVIO context
if (pAVIOCtx != NULL) av_freep(pAVIOCtx);
return rc;
}
static void
ngx_http_video_thumbextractor_init_libraries(void)
{
// Register all formats and codecs
av_register_all();
av_log_set_level(AV_LOG_ERROR);
}
static uint32_t
ngx_http_video_thumbextractor_jpeg_compress(ngx_http_video_thumbextractor_loc_conf_t *cf, uint8_t * buffer, int in_width, int in_height, int out_width, int out_height, caddr_t *out_buffer, size_t *out_len, size_t uncompressed_size, ngx_pool_t *temp_pool)
{
struct jpeg_compress_struct cinfo;
struct jpeg_error_mgr jerr;
JSAMPROW row_pointer[1];
int row_stride;
int image_d_width = in_width;
int image_d_height = in_height;
if ( !buffer ) return 1;
cinfo.err = jpeg_std_error(&jerr);
jpeg_create_compress(&cinfo);
ngx_http_video_thumbextractor_jpeg_memory_dest(&cinfo, out_buffer, out_len, uncompressed_size, temp_pool);
cinfo.image_width = out_width;
cinfo.image_height = out_height;
cinfo.input_components = 3;
cinfo.in_color_space = JCS_RGB;
jpeg_set_defaults(&cinfo);
/* Important: Header info must be set AFTER jpeg_set_defaults() */
cinfo.write_JFIF_header = TRUE;
cinfo.JFIF_major_version = 1;
cinfo.JFIF_minor_version = 2;
cinfo.density_unit = 1; /* 0=unknown, 1=dpi, 2=dpcm */
/* Image DPI is determined by Y_density, so we leave that at
jpeg_dpi if possible and crunch X_density instead (PAR > 1) */
if (out_height * image_d_width > out_width * image_d_height) {
image_d_width = out_height * image_d_width / image_d_height;
image_d_height = out_height;
} else {
image_d_height = out_width * image_d_height / image_d_width;
image_d_width = out_width;
}
cinfo.X_density = cf->jpeg_dpi * out_width / image_d_width;
cinfo.Y_density = cf->jpeg_dpi * out_height / image_d_height;
cinfo.write_Adobe_marker = TRUE;
jpeg_set_quality(&cinfo, cf->jpeg_quality, cf->jpeg_baseline);
cinfo.optimize_coding = cf->jpeg_optimize;
cinfo.smoothing_factor = cf->jpeg_smooth;
if ( cf->jpeg_progressive_mode ) {
jpeg_simple_progression(&cinfo);
}
jpeg_start_compress(&cinfo, TRUE);
row_stride = out_width * 3;
while (cinfo.next_scanline < cinfo.image_height) {
row_pointer[0] = &buffer[cinfo.next_scanline * row_stride];
(void)jpeg_write_scanlines(&cinfo, row_pointer,1);
}
jpeg_finish_compress(&cinfo);
jpeg_destroy_compress(&cinfo);
return 0;
}
typedef struct {
struct jpeg_destination_mgr pub; /* public fields */
unsigned char **buf;
size_t *size;
size_t uncompressed_size;
ngx_pool_t *pool;
} ngx_http_video_thumbextractor_jpeg_destination_mgr;
static void ngx_http_video_thumbextractor_init_destination (j_compress_ptr cinfo)
{
ngx_http_video_thumbextractor_jpeg_destination_mgr * dest = (ngx_http_video_thumbextractor_jpeg_destination_mgr *) cinfo->dest;
*(dest->buf) = ngx_palloc(dest->pool, dest->uncompressed_size);
*(dest->size) = dest->uncompressed_size;
dest->pub.next_output_byte = *(dest->buf);
dest->pub.free_in_buffer = dest->uncompressed_size;
}
