void main(void)
{
clock_t begin, end;
double time_spent;
double imageAspectRatio = 0;
double originalWidth;
double originalHeight;
double masterAspectRatio = 1.77;
MagickWand *m_wand = NULL;
int width,height;
MagickWandGenesis();
m_wand = NewMagickWand();
MagickReadImage(m_wand,"mona-lisa.JPG");
begin = clock();
originalWidth = MagickGetImageWidth(m_wand);
originalHeight = MagickGetImageHeight(m_wand);
imageAspectRatio = originalWidth/originalHeight;
if(imageAspectRatio <= masterAspectRatio)
{
MagickCropImage(m_wand,originalWidth,(int)(originalWidth/masterAspectRatio),0,(originalHeight-(int)(originalWidth/masterAspectRatio))/2 );
printf("%d X %d ",MagickGetImageWidth(m_wand) , MagickGetImageHeight(m_wand));
}
else
{
MagickCropImage(m_wand,(int)(originalHeight * masterAspectRatio),originalHeight,(originalWidth - (int)(originalHeight * masterAspectRatio))/2,0);
}
if (originalWidth > 1920)
MagickResizeImage(m_wand,1920,1080,LanczosFilter,1);
end = clock();
time_spent = (double)(end - begin) / CLOCKS_PER_SEC;
printf("Time taken is %f\n",time_spent);
// MagickCropImage(m_wand,originalWidth/2,originalHeight/2,0,0);
// Set the compression quality to 95 (high quality = low compression)
//MagickSetImageCompressionQuality(m_wand,95);
/* Write the new image */
MagickWriteImage(m_wand,"master.jpg");
/* Clean up */
if(m_wand)m_wand = DestroyMagickWand(m_wand);
MagickWandTerminus();}
caddr_t bif_im_CropAndResizeImageBlob(caddr_t * qst, caddr_t * err, state_slot_t ** args)
{
im_env_t env;
caddr_t res;
unsigned long width = bif_long_arg (qst, args, 2, "IM CropAndResizeImageBlob");
unsigned long height = bif_long_arg (qst, args, 3, "IM CropAndResizeImageBlob");
long x = bif_long_arg (qst, args, 4, "IM CropAndResizeImageBlob");
long y = bif_long_arg (qst, args, 5, "IM CropAndResizeImageBlob");
long h_size = bif_long_arg (qst, args, 6, "IM ResizeImageBlob");
long v_size = bif_long_arg (qst, args, 7, "IM ResizeImageBlob");
double blur = bif_double_arg (qst, args, 8, "IM ResizeImageBlob");
long filter = bif_long_arg (qst, args, 9, "IM ResizeImageBlob");
if (filter < 0 || filter > 15)
filter = PointFilter;
im_init (&env, qst, args, "IM CropAndResizeImageBlob");
im_env_set_input_blob (&env, 0);
im_env_set_blob_ext (&env, 10, -1);
im_read (&env);
MagickResetIterator (env.ime_magick_wand);
while (MagickNextImage (env.ime_magick_wand) != MagickFalse)
{
MagickCropImage (env.ime_magick_wand, width, height, x, y);
MagickResizeImage (env.ime_magick_wand, h_size, v_size, filter, blur);
}
res = im_write (&env);
im_leave (&env);
return res;
}
/**
* Legacy API support.
*/
apr_status_t
dims_legacy_crop_operation (dims_request_rec *d, char *args, char **err) {
MagickStatusType flags;
RectangleInfo rec;
ExceptionInfo ex_info;
long width, height;
int x, y;
flags = ParseGravityGeometry(GetImageFromMagickWand(d->wand), args, &rec, &ex_info);
if(!(flags & AllValues)) {
*err = "Parsing crop geometry failed";
return DIMS_FAILURE;
}
width = MagickGetImageWidth(d->wand);
height = MagickGetImageHeight(d->wand);
x = (width / 2) - (rec.width / 2);
y = (height / 2) - (rec.height / 2);
ap_log_rerror(APLOG_MARK, APLOG_DEBUG, 0, d->r,
"legacy_crop will crop to %ldx%ld+%d+%d",
rec.width, rec.height, x, y);
MAGICK_CHECK(MagickCropImage(d->wand, rec.width, rec.height, x, y), d);
return DIMS_SUCCESS;
}
Object c_Gmagick::t_cropimage(int64 width, int64 height, int64 x, int64 y) {
INSTANCE_METHOD_INJECTION_BUILTIN(Gmagick, Gmagick::cropimage);
checkNotEmpty();
int result = MagickCropImage(magick_wand, width, height, x, y);
checkResult(result);
return this;
}
int convert_crop (MagickWand *input, convert_t *opts) {
unsigned long crop_width = opts->crop_width;
unsigned long crop_height = opts->crop_height;
if (!crop_width && !opts->crop_x && !crop_height && !opts->crop_y) return MagickPass;
if (!crop_width) crop_width = MagickGetImageWidth(input);
if (!crop_height) crop_height = MagickGetImageHeight(input);
return MagickCropImage(input, crop_width, crop_height, opts->crop_x, opts->crop_y);
}
static int crop_wi(lua_State *L) {
double x = lua_tonumber(L, 1);
double y = lua_tonumber(L, 2);
double cols = lua_tonumber(L, 3);
double rows = lua_tonumber(L, 4);
lua_arg *larg = pthread_getspecific(thread_key);
int ret = MagickCropImage(larg->img, cols, rows, x, y);
lua_pushnumber(L, ret);
return 1;
}
void crop(size_t width, size_t height, size_t x, size_t y)
{
MagickResetIterator(magick_wand);
while (MagickNextImage(magick_wand) != MagickFalse) {
if(MagickFalse == MagickCropImage(magick_wand,width,height,x,y))
{
throw("An error occured");
}
}
width_ = width;
height_ = height;
}
Handle<Value> MerlinImage::CropImage(const Arguments& args) {
HandleScope scope;
MagickWand* wand = MerlinImage::ReadImage( ObjectWrap::Unwrap<MerlinImage>(args.This()) );
int width = args[0]->IntegerValue();
int height = args[1]->IntegerValue();
int x = args[2]->IntegerValue();
int y = args[3]->IntegerValue();
MagickCropImage(wand, width, height, x, y);
return scope.Close(MerlinImage::WriteImage(wand));
}
void box(size_t width, size_t height, char floated)
{
double width_ratio = (double)width/width_;
double height_ratio = (double)height/height_;
size_t new_width, new_height, crop_x, crop_y;
if(width_ratio > height_ratio)
{
new_width = width;
new_height = (size_t)(height_ * width_ratio);
crop_x = 0;
crop_y = 0;
if((floated & EIM_FLOAT_BOTTOM) == EIM_FLOAT_BOTTOM)
{
crop_y = new_height - height;
}
else if((floated & EIM_FLOAT_TOP) == EIM_FLOAT_TOP)
{
crop_x = 0;
}
else//if((floated & EIM_FLOAT_CENTER) == EIM_FLOAT_CENTER)
{
crop_y = (size_t)(new_height / 2.0 - height / 2.0);
}
}
else
{
new_width = (size_t)(width_ * height_ratio);
new_height = height;
crop_y = 0;
if((floated & EIM_FLOAT_RIGHT) == EIM_FLOAT_RIGHT)
{
crop_x = new_width - width;
}
else if((floated & EIM_FLOAT_LEFT) == EIM_FLOAT_LEFT)
{
crop_x = 0;
}
else//if((floated & EIM_FLOAT_CENTER) == EIM_FLOAT_CENTER)
{
crop_x = (size_t)(new_width / 2.0 - width / 2.0);
}
}
MagickResetIterator(magick_wand);
while (MagickNextImage(magick_wand) != MagickFalse) {
MagickResizeImage(magick_wand,new_width,new_height,LanczosFilter,1.0);
MagickCropImage(magick_wand,width,height,crop_x,crop_y);
}
width_ = width;
height_ = height;
}
/**
* @brief crop crop an image
*
* @param im the image
* @param x position x
* @param y position y
* @param cols target width
* @param rows target height
*
* @return 0 for OK and -1 for fail
*/
static int crop(MagickWand *im, int x, int y, int cols, int rows)
{
int ret = -1;
unsigned long im_cols = MagickGetImageWidth(im);
unsigned long im_rows = MagickGetImageHeight(im);
if (x < 0) x = 0;
if (y < 0) y = 0;
if (x >= im_cols || y >= im_rows) return -1;
if (cols == 0 || im_cols < x + cols) cols = im_cols - x;
if (rows == 0 || im_rows < y + rows) rows = im_rows - y;
LOG_PRINT(LOG_DEBUG, "wi_crop(im, %d, %d, %d, %d)", x, y, cols, rows);
ret = MagickCropImage(im, cols, rows, x, y);
return ret;
}
apr_status_t
dims_crop_operation (dims_request_rec *d, char *args, char **err) {
MagickStatusType flags;
RectangleInfo rec;
ExceptionInfo ex_info;
flags = ParseGravityGeometry(GetImageFromMagickWand(d->wand), args, &rec, &ex_info);
if(!(flags & AllValues)) {
*err = "Parsing crop geometry failed";
return DIMS_FAILURE;
}
MAGICK_CHECK(MagickCropImage(d->wand, rec.width, rec.height, rec.x, rec.y), d);
MAGICK_CHECK(MagickSetImagePage(d->wand, rec.width, rec.height, rec.x, rec.y), d);
return DIMS_SUCCESS;
}
apr_status_t
dims_thumbnail_operation (dims_request_rec *d, char *args, char **err) {
MagickStatusType flags;
RectangleInfo rec;
char *resize_args = apr_psprintf(d->pool, "%s^", args);
flags = ParseSizeGeometry(GetImageFromMagickWand(d->wand), resize_args, &rec);
if(!(flags & AllValues)) {
*err = "Parsing thumbnail (resize) geometry failed";
return DIMS_FAILURE;
}
if (d->optimize_resize) {
size_t orig_width;
size_t orig_height;
RectangleInfo sampleRec = rec;
sampleRec.width *= d->optimize_resize;
sampleRec.height *= d->optimize_resize;
orig_width = MagickGetImageWidth(d->wand);
orig_height = MagickGetImageHeight(d->wand);
if(sampleRec.width < orig_width && sampleRec.height < orig_height) {
ap_log_rerror(APLOG_MARK, APLOG_DEBUG, 0, d->r, "Sampling image down to %dx%d before resizing.", sampleRec.width, sampleRec.height);
MAGICK_CHECK(MagickSampleImage(d->wand, sampleRec.width, sampleRec.height), d);
}
}
MAGICK_CHECK(MagickThumbnailImage(d->wand, rec.width, rec.height), d);
if(!(flags & PercentValue)) {
flags = ParseAbsoluteGeometry(args, &rec);
if(!(flags & AllValues)) {
*err = "Parsing thumbnail (crop) geometry failed";
return DIMS_FAILURE;
}
MAGICK_CHECK(MagickCropImage(d->wand, rec.width, rec.height, rec.x, rec.y), d);
}
MAGICK_CHECK(MagickSetImagePage(d->wand, rec.width, rec.height, rec.x, rec.y), d);
return DIMS_SUCCESS;
}
caddr_t bif_im_CropImageFile (caddr_t * qst, caddr_t * err, state_slot_t ** args)
{
im_env_t env;
unsigned long width = (unsigned long) bif_long_arg (qst, args, 1, "IM CropImageFile");
unsigned long height = (unsigned long) bif_long_arg (qst, args, 2, "IM CropImageFile");
long x = bif_long_arg (qst, args, 3, "IM CropImageFile");
long y = bif_long_arg (qst, args, 4, "IM CropImageFile");
im_init (&env, qst, args, "IM CropImageFile");
im_env_set_filenames (&env, 0, 5);
im_read (&env);
MagickResetIterator (env.ime_magick_wand);
while (MagickNextImage (env.ime_magick_wand) != MagickFalse)
{
MagickCropImage (env.ime_magick_wand, width, height, x, y);
}
im_write (&env);
im_leave (&env);
return (0);
}
apr_status_t
dims_legacy_thumbnail_operation (dims_request_rec *d, char *args, char **err) {
MagickStatusType flags;
RectangleInfo rec;
long width, height;
int x, y;
char *resize_args = apr_psprintf(d->pool, "%s^", args);
flags = ParseSizeGeometry(GetImageFromMagickWand(d->wand), resize_args, &rec);
if(!(flags & AllValues)) {
*err = "Parsing thumbnail (resize) geometry failed";
return DIMS_FAILURE;
}
if(rec.width < 200 && rec.height < 200) {
MAGICK_CHECK(MagickThumbnailImage(d->wand, rec.width, rec.height), d);
} else {
MAGICK_CHECK(MagickScaleImage(d->wand, rec.width, rec.height), d);
}
ap_log_rerror(APLOG_MARK, APLOG_DEBUG, 0, d->r,
"legacy_thumbnail will resize to %ldx%ld", rec.width, rec.height);
flags = ParseAbsoluteGeometry(args, &rec);
if(!(flags & AllValues)) {
*err = "Parsing thumbnail (crop) geometry failed";
return DIMS_FAILURE;
}
width = MagickGetImageWidth(d->wand);
height = MagickGetImageHeight(d->wand);
x = (width / 2) - (rec.width / 2);
y = (height / 2) - (rec.height / 2);
ap_log_rerror(APLOG_MARK, APLOG_DEBUG, 0, d->r,
"legacy_thumbnail will crop to %ldx%ld+%d+%d", rec.width, rec.height, x, y);
MAGICK_CHECK(MagickCropImage(d->wand, rec.width, rec.height, x, y), d);
return DIMS_SUCCESS;
}
caddr_t bif_im_CropImageBlob(caddr_t * qst, caddr_t * err, state_slot_t ** args)
{
im_env_t env;
caddr_t res;
unsigned long width = bif_long_arg (qst, args, 2, "IM CropImageBlob");
unsigned long height = bif_long_arg (qst, args, 3, "IM CropImageBlob");
long x = bif_long_arg (qst, args, 4, "IM CropImageBlob");
long y = bif_long_arg (qst, args, 5, "IM CropImageBlob");
im_init (&env, qst, args, "IM CropImageBlob");
im_env_set_input_blob (&env, 0);
im_env_set_blob_ext (&env, 6, -1);
im_read (&env);
MagickResetIterator (env.ime_magick_wand);
while (MagickNextImage (env.ime_magick_wand) != MagickFalse)
{
MagickCropImage (env.ime_magick_wand, width, height, x, y);
}
res = im_write (&env);
im_leave (&env);
return res;
}
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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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);
}
unsigned char *get_thumbnail(char *full_filename, char *thumbnail_str,
size_t *thumbnail_size, int is_rotate, int rotate_degree) {
unsigned char *image_data = NULL;
if (full_filename == NULL || thumbnail_str == NULL)
return NULL;
MagickBooleanType status;
MagickWand *tmp_magick_wand = NULL;
MagickWand *magick_wand = NULL;
magick_wand = NewMagickWand();
status = MagickReadImage(magick_wand, full_filename);
if (status == MagickFalse) {
ThrowWandException(magick_wand);
return NULL;
}
PixelWand *background = NULL;
size_t height = MagickGetImageHeight(magick_wand);
size_t old_height = height;
size_t width = MagickGetImageWidth(magick_wand);
size_t old_width = width;
ssize_t i = 0, j = 0;
int is_crop = 0;
char is_gif_flag = 0;
char is_jpeg_flag = 0;
int do_quality = 0;
char *fileformat = NULL;
fileformat = MagickGetImageFormat(magick_wand);
if (fileformat == NULL) {
return NULL;
}
if (0 == strcasecmp(fileformat, image_format[GIFEXT])) {
is_gif_flag = 1;
} else if (0 == strcasecmp(fileformat, image_format[JPEGEXT])) {
is_jpeg_flag = 1;
} else if (0 == strcasecmp(fileformat, image_format[JPGEXT])) {
is_jpeg_flag = 1;
}
fileformat = (char *)MagickRelinquishMemory(fileformat); //free();
if( 'C' == *thumbnail_str ||'c' == *thumbnail_str ) {
is_crop = 1;
}
if(is_crop) {
ParseMetaGeometry(thumbnail_str + 1, &i, &j, &width, &height);
} else {
ParseMetaGeometry(thumbnail_str, &i, &j, &width, &height);
}
if (old_width == width && height == old_height) {
image_data = MagickGetImagesBlob(magick_wand, thumbnail_size);
} else if (width <= 0 || height <= 0) {
logError("%s%s:Geometry %s error\n", __FILE__, __func__, thumbnail_str);
} else {
/*
* if type of the image is GIF, maybe have more than one frame, so do this different
* from others
*/
if (is_gif_flag) {
tmp_magick_wand = magick_wand;
magick_wand = MagickCoalesceImages(tmp_magick_wand);
tmp_magick_wand = DestroyMagickWand(tmp_magick_wand);
}
/*
* if size of the image less than 800 * 600 and that's type is JPEG, then do
* quality 100 OP
*/
if ((old_width < 800) && (old_height < 600) && is_jpeg_flag && is_crop != 1) {
do_quality = 1;
}
MagickResetIterator(magick_wand);
while (MagickNextImage(magick_wand) != MagickFalse) {
if(do_quality) {
MagickSetImageCompressionQuality(magick_wand, 100);
MagickStripImage(magick_wand);
}
if(is_crop == 0)
MagickThumbnailImage(magick_wand, width, height);
else {
logInfo("crop Image %ld, %ld", i, j);
MagickCropImage(magick_wand, width, height, i, j);
}
if(is_rotate == 1) {
background=NewPixelWand();
status=PixelSetColor(background,"#000000");
MagickRotateImage(magick_wand, background,(double)rotate_degree);
background=DestroyPixelWand(background);
}
}
image_data = MagickGetImagesBlob(magick_wand, thumbnail_size);
}
magick_wand = DestroyMagickWand(magick_wand);
return image_data;
}
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;
}
unsigned char *covert_image(MagickWand *magick_wand,
img_transition_info *image_transition_info, size_t *thumbnail_size) {
unsigned char *image_data = NULL;
MagickBooleanType status;
// MagickWand *tmp_magick_wand = NULL;
PixelWand *background = NULL;
size_t height = MagickGetImageHeight(magick_wand);
size_t old_height = height;
size_t width = MagickGetImageWidth(magick_wand);
size_t old_width = width;
int is_crop = 0;
int is_Crop = 0;
int is_thumbnail = 0;
ssize_t i = 0, j = 0;
char is_gif_flag = 0;
char is_jpeg_flag = 0;
int do_quality = 0;
char *fileformat = NULL;
size_t cw = 0; //crop weight
size_t ch = 0; //crop height
size_t x_offset = 0;
size_t y_offset = 0;
fileformat = MagickGetImageFormat(magick_wand);
if (fileformat == NULL) {
return NULL;
}
if (0 == strcasecmp(fileformat, image_format[GIFEXT])) {
is_gif_flag = 1;
} else if (0 == strcasecmp(fileformat, image_format[JPEGEXT])) {
is_jpeg_flag = 1;
} else if (0 == strcasecmp(fileformat, image_format[JPGEXT])) {
is_jpeg_flag = 1;
}
fileformat = (char *) MagickRelinquishMemory(fileformat); //free();
if ('c' == image_transition_info->transition_str[0]) {
is_crop = 1;
} else if ('C' == image_transition_info->transition_str[0]) {
is_Crop = 1;
} else {
is_thumbnail = 1;
}
if (is_crop) {
ParseMetaGeometry(image_transition_info->transition_str + 1, &i, &j,
&width, &height);
} else if (is_thumbnail) {
ParseMetaGeometry(image_transition_info->transition_str, &i, &j, &width,
&height);
if (old_width == width && height == old_height) //���ߴ���ͬ����������
is_thumbnail = 0;
} else if (is_Crop) {
if (0
>= get_Crop_width_height(
image_transition_info->transition_str + 1, &cw, &ch,
&x_offset, &y_offset)) {
logError("%s%s:Crop %s error\n", __FILE__, __func__,
image_transition_info->transition_str + 1);
return NULL;
}
#if 0
if(cw > width || ch > height) {
image_data = MagickGetImagesBlob(magick_wand, thumbnail_size);
magick_wand = DestroyMagickWand(magick_wand);
return image_data;
}
#endif
//�õ�height��width,�����Ӧ��x_offset,yoffset;
get_Crop_offset_and_wh(cw, ch, &width, &height, &x_offset, &y_offset);
}
if (old_width == width && height == old_height && (is_Crop == 0)
&& (image_transition_info->is_rotate == 0)
&& (image_transition_info->is_quality == 0)) {
image_data = MagickGetImagesBlob(magick_wand, thumbnail_size);
} else if (width <= 0 || height <= 0) {
logError("%s%s:Geometry %s error\n", __FILE__, __func__,
image_transition_info->transition_str);
} else {
/*
* if type of the image is GIF, maybe have more than one frame, so do this different
* from others
*/
// if (is_gif_flag) {
// tmp_magick_wand = magick_wand;
// magick_wand = MagickCoalesceImages(tmp_magick_wand);
// tmp_magick_wand = magick_wand;
// magick_wand = MagickOptimizeImageLayers(tmp_magick_wand);
// tmp_magick_wand = DestroyMagickWand(tmp_magick_wand);
// }
/*
* if size of the image less than 800 * 600 and that's type is JPEG, then do
* quality 100 OP
*/
if ((old_width < 800) && (old_height < 600) && is_jpeg_flag
&& is_crop != 1 && (image_transition_info->is_quality == 0)) {
do_quality = 1;
}
background = NewPixelWand();
status = PixelSetColor(background, "#000000");
/* for gif
MagickResetIterator(magick_wand);
*/
MagickWand *tmp_magick_wand = MagickGetImage(magick_wand);
// while (MagickNextImage(tmp_magick_wand) != MagickFalse) {
if (do_quality) {
MagickSetImageCompressionQuality(tmp_magick_wand, 100);
MagickStripImage(tmp_magick_wand);
}
if (is_thumbnail == 1) {
MagickThumbnailImage(tmp_magick_wand, width, height);
} else if (is_crop == 1) {
MagickCropImage(tmp_magick_wand, width, height, i, j);
} else if (is_Crop == 1) {
MagickThumbnailImage(tmp_magick_wand, width, height);
MagickCropImage(tmp_magick_wand, cw, ch, x_offset, y_offset);
if (is_gif_flag) { // gif should thumbnail again
MagickThumbnailImage(tmp_magick_wand, cw, ch);
}
}
if (image_transition_info->is_rotate == 1) {
MagickRotateImage(tmp_magick_wand, background,
(double) (image_transition_info->degree));
}
if (image_transition_info->is_quality) {
MagickSetImageCompressionQuality(tmp_magick_wand,
image_transition_info->quality);
}
MagickStripImage(tmp_magick_wand);
// }
background = DestroyPixelWand(background);
image_data = MagickGetImagesBlob(tmp_magick_wand, thumbnail_size);
tmp_magick_wand = DestroyMagickWand(tmp_magick_wand);
//
// if (is_gif_flag) {
// magick_wand = DestroyMagickWand(magick_wand);
// }
}
return image_data;
}
/**
* @brief proportion proportion function
*
* @param im the image
* @param p_type p type
* @param cols width of target image
* @param rows height of target image
*
* @return 0 for OK and -1 for fail
*/
static int proportion(MagickWand *im, int p_type, int cols, int rows)
{
int ret = -1;
unsigned long im_cols = MagickGetImageWidth(im);
unsigned long im_rows = MagickGetImageHeight(im);
if (p_type == 1)
{
if (cols == 0 || rows == 0)
{
if (cols > 0)
{
rows = (uint32_t)round(((double)cols / im_cols) * im_rows);
}
else
{
cols = (uint32_t)round(((double)rows / im_rows) * im_cols);
}
LOG_PRINT(LOG_DEBUG, "p=1, wi_scale(im, %d, %d)", cols, rows);
ret = MagickResizeImage(im, cols, rows, UndefinedFilter, 1.0);
//ret = MagickScaleImage(im, cols, rows);
}
else
{
uint32_t x = 0, y = 0, s_cols, s_rows;
double cols_rate = (double)cols / im_cols;
double rows_rate = (double)rows / im_rows;
if (cols_rate > rows_rate)
{
s_cols = cols;
s_rows = (uint32_t)round(cols_rate * im_rows);
y = (uint32_t)floor((s_rows - rows) / 2.0);
}
else
{
s_cols = (uint32_t)round(rows_rate * im_cols);
s_rows = rows;
x = (uint32_t)floor((s_cols - cols) / 2.0);
}
LOG_PRINT(LOG_DEBUG, "p=2, wi_scale(im, %d, %d)", s_cols, s_rows);
ret = MagickResizeImage(im, s_cols, s_rows, UndefinedFilter, 1.0);
//ret = MagickScaleImage(im, s_cols, s_rows);
LOG_PRINT(LOG_DEBUG, "p=2, wi_crop(im, %d, %d, %d, %d)", x, y, cols, rows);
ret = MagickCropImage(im, cols, rows, x, y);
}
}
else if (p_type == 2)
{
uint32_t x, y;
x = (uint32_t)floor((im_cols - cols) / 2.0);
y = (uint32_t)floor((im_rows - rows) / 2.0);
LOG_PRINT(LOG_DEBUG, "p=3, wi_crop(im, %d, %d, %d, %d)", x, y, cols, rows);
ret = MagickCropImage(im, cols, rows, x, y);
}
else if (p_type == 3)
{
if (cols == 0 || rows == 0)
{
int rate = cols > 0 ? cols : rows;
rows = (uint32_t)round(im_rows * (double)rate / 100);
cols = (uint32_t)round(im_cols * (double)rate / 100);
LOG_PRINT(LOG_DEBUG, "p=3, wi_scale(im, %d, %d)", cols, rows);
ret = MagickResizeImage(im, cols, rows, UndefinedFilter, 1.0);
//ret = MagickScaleImage(im, cols, rows);
}
else
{
rows = (uint32_t)round(im_rows * (double)rows / 100);
cols = (uint32_t)round(im_cols * (double)cols / 100);
LOG_PRINT(LOG_DEBUG, "p=3, wi_scale(im, %d, %d)", cols, rows);
ret = MagickResizeImage(im, cols, rows, UndefinedFilter, 1.0);
//ret = MagickScaleImage(im, cols, rows);
}
}
else if (p_type == 0)
{
LOG_PRINT(LOG_DEBUG, "p=0, wi_scale(im, %d, %d)", cols, rows);
ret = MagickResizeImage(im, cols, rows, UndefinedFilter, 1.0);
//ret = MagickScaleImage(im, cols, rows);
}
else if (p_type == 4)
{
double rate = 1.0;
if (cols == 0 || rows == 0)
{
rate = cols > 0 ? (double)cols / im_cols : (double)rows / im_rows;
}
else
{
double rate_col = (double)cols / im_cols;
double rate_row = (double)rows / im_rows;
rate = rate_col < rate_row ? rate_col : rate_row;
}
cols = (uint32_t)round(im_cols * rate);
rows = (uint32_t)round(im_rows * rate);
LOG_PRINT(LOG_DEBUG, "p=4, wi_scale(im, %d, %d)", cols, rows);
ret = MagickResizeImage(im, cols, rows, UndefinedFilter, 1.0);
}
return ret;
}
