/*
 * libmedia-thumbnail
 *
 * Copyright (c) 2000 - 2011 Samsung Electronics Co., Ltd. All rights reserved.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *
 */

#include <aul.h>
#include <limits.h>
#include <malloc.h>
#include <string.h>
#include <regex.h>
#include <mm_file.h>
#include <mm_util_magick.h>
#if defined(USE_MEMORY_USAGE_REDUCTION)
#include <mm_util_gif.h>
#include <mm_util_jpeg.h>
#include <libexif/exif-data.h>
#endif

#include "media-thumbnail.h"
#include "media-thumbnail-debug.h"

#define MAX_THUMB_SIZE 2000
#define MIME_TYPE_TIFF "image/tiff"
#define MIME_TYPE_ASF "application/vnd.ms-asf"
#define MIME_MAX_LEN 255

typedef enum {
    MEDIA_THUMB_INVALID = 0,
    MEDIA_THUMB_IMAGE,
    MEDIA_THUMB_VIDEO,
} thumbnail_media_type_e;

static void __get_rotation(const char *path, mm_util_rotate_type_e *rot_type)
{
	int err = FILEINFO_ERROR_NONE;
	MMHandleType tag = (MMHandleType) NULL;
	char *p = NULL;
	int size = 0;
	mm_util_rotate_type_e _rot_type = MM_UTIL_ROTATE_0;

	/* Get Content Tag attribute for orientation */
	err = mm_file_create_tag_attrs(&tag, path);
	if (err != FILEINFO_ERROR_NONE)
		return;

	err = mm_file_get_attrs(tag, MM_FILE_TAG_ROTATE, &p, &size, NULL);
	if (err == FILEINFO_ERROR_NONE && size >= 0 && p) {
		if (strncmp(p, "90", size) == 0)
			_rot_type = MM_UTIL_ROTATE_90;
		else if (strncmp(p, "180", size) == 0)
			_rot_type = MM_UTIL_ROTATE_180;
		else if (strncmp(p, "270", size) == 0)
			_rot_type = MM_UTIL_ROTATE_270;
		else
			_rot_type = MM_UTIL_ROTATE_0;

		thumb_dbg("There is tag rotate : %d", _rot_type);
	}

	*rot_type = _rot_type;

	mm_file_destroy_tag_attrs(tag);
}

static int __get_video_meta(const char *path, int *video_track_num, unsigned int *width, unsigned int *height, void **frame, size_t *frame_size)
{
	int err = FILEINFO_ERROR_NONE;
	MMHandleType content = (MMHandleType) NULL;
	int _video_track_num = 0;
	unsigned int _width = 0;
	unsigned int _height = 0;
	size_t _frame_size = 0;
	void *_frame = NULL;
	void *_copied = NULL;

	err = mm_file_create_content_attrs(&content, path);
	thumb_retvm_if(err != FILEINFO_ERROR_NONE, THUMB_FAIL, "mm_file_create_content_attrs fails : %d", err);

	err = mm_file_get_attrs(content,
				MM_FILE_CONTENT_VIDEO_TRACK_COUNT, &_video_track_num,
				MM_FILE_CONTENT_VIDEO_WIDTH, &_width,
				MM_FILE_CONTENT_VIDEO_HEIGHT, &_height,
				MM_FILE_CONTENT_VIDEO_THUMBNAIL, &_frame, &_frame_size, /* raw image is RGB888 format */
				NULL);

	if (err != FILEINFO_ERROR_NONE) {
		thumb_err("mm_file_get_attrs fails : %d", err);
		mm_file_destroy_content_attrs(content);
		return THUMB_FAIL;
	}

	*video_track_num = _video_track_num;

	if (_video_track_num == 0) {
		mm_file_destroy_content_attrs(content);
		return THUMB_OK;
	}

	if (!_frame || _width == 0 || _height == 0 || _frame_size == 0) {
		thumb_err("wrong video info W[%d] H[%d] Size[%zu] Frame[%p]", _width, _height, _frame_size, _frame);
		mm_file_destroy_content_attrs(content);
		return THUMB_FAIL;
	}

	_copied = malloc(_frame_size);
	if (!_copied) {
		thumb_err("allocation failed");
		mm_file_destroy_content_attrs(content);
		return THUMB_FAIL;
	}

	*width = _width;
	*height = _height;
	*frame_size = _frame_size;
	memcpy(_copied, _frame, _frame_size);
	*frame = _copied;

	mm_file_destroy_content_attrs(content);

	return THUMB_OK;
}

static int __get_video_info(const char *path, int *video_track_num, unsigned int *width, unsigned int *height, void **frame, size_t *frame_size, mm_util_rotate_type_e *rot_type)
{
	int err = THUMB_OK;
	mm_util_rotate_type_e _rot_type = MM_UTIL_ROTATE_0;

	__get_rotation(path, &_rot_type);
	err = __get_video_meta(path, video_track_num, width, height, frame, frame_size);

	if (rot_type)
		*rot_type = _rot_type;

	return err;
}

static void __media_thumb_get_proper_thumb_size(unsigned int origin_width, unsigned int origin_height, unsigned int *thumb_width, unsigned int *thumb_height)
{
	double ratio = 0.0;

	thumb_retm_if(origin_width == 0, "Invalid origin_width");
	thumb_retm_if(origin_height == 0, "Invalid origin_height");
	thumb_retm_if(!thumb_width, "Invalid thumb_width");
	thumb_retm_if(!thumb_height, "Invalid thumb_height");

	thumb_dbg("origin thumb w: %d h: %d", *thumb_width, *thumb_height);

	/* Set smaller length to default size */
	if (origin_width < origin_height) {
		if (origin_width < *thumb_width)
			*thumb_width = origin_width;
		ratio = (double)origin_height / (double)origin_width;
		*thumb_height = *thumb_width * ratio;
	} else {
		if (origin_height < *thumb_height)
			*thumb_height = origin_height;
		ratio = (double)origin_width / (double)origin_height;
		*thumb_width = *thumb_height * ratio;
	}

	thumb_dbg("proper thumb w: %d h: %d", *thumb_width, *thumb_height);
}

static int __get_video_thumb_to_file(unsigned int width, unsigned int height, void *frame, size_t frame_size, mm_util_rotate_type_e rot_type, const char *thumb_path, unsigned int thumb_width, unsigned int thumb_height)
{
	int err = MM_UTIL_ERROR_NONE;
	mm_util_image_h img = NULL;
	mm_util_image_h resize_img = NULL;
	unsigned int thumb_w = thumb_width;
	unsigned int thumb_h = thumb_height;

	thumb_retvm_if(!thumb_path, THUMB_FAIL, "Invalid thumb_path");

	__media_thumb_get_proper_thumb_size(width, height, &thumb_w, &thumb_h);
	thumb_retv_if(thumb_w == 0 || thumb_h == 0, THUMB_FAIL);

	err = mm_image_create_image(width, height, MM_UTIL_COLOR_RGB24, (unsigned char *)frame, frame_size, &img);
	thumb_retvm_if(err != MM_UTIL_ERROR_NONE, THUMB_FAIL, "fail to mm_image_create_image [%d]", err);

	if (width > thumb_w || height > thumb_h) {
		if (rot_type != MM_UTIL_ROTATE_0) {
			err = mm_util_resize_B_B(img, thumb_w, thumb_h, &resize_img);
			if (err != MM_UTIL_ERROR_NONE)
				goto ERROR;

			err = mm_util_rotate_B_P(resize_img, rot_type, thumb_path);

		} else {
			err = mm_util_resize_B_P(img, thumb_w, thumb_h, thumb_path);
		}
	} else {
		if (rot_type != MM_UTIL_ROTATE_0)
			err = mm_util_rotate_B_P(img, rot_type, thumb_path);
		else
			err = mm_util_resize_B_P(img, width, height, thumb_path);
	}

ERROR:
	mm_image_destroy_image(img);
	mm_image_destroy_image(resize_img);

	return (err == MM_UTIL_ERROR_NONE) ? THUMB_OK : THUMB_FAIL;
}

static int __get_video_thumb_to_buffer(unsigned int width, unsigned int height, void *frame, size_t frame_size, unsigned int thumb_width, unsigned int thumb_height, mm_util_image_h *dst_img)
{
	int err = MM_UTIL_ERROR_NONE;
	mm_util_image_h img = NULL;
	unsigned int thumb_w = thumb_width;
	unsigned int thumb_h = thumb_height;

	__media_thumb_get_proper_thumb_size(width, height, &thumb_w, &thumb_h);
	thumb_retv_if(thumb_w == 0 || thumb_h == 0, THUMB_FAIL);

	err = mm_image_create_image(width, height, MM_UTIL_COLOR_RGB24, (unsigned char *)frame, frame_size, &img);
	thumb_retvm_if(err != MM_UTIL_ERROR_NONE, THUMB_FAIL, "fail to mm_image_create_image [%d]", err);

	if (width > thumb_w || height > thumb_h)
		err = mm_util_resize_B_B(img, thumb_w, thumb_h, dst_img);
	else
		err = mm_image_clone_image(img, dst_img);
	mm_image_destroy_image(img);

	return (err == MM_UTIL_ERROR_NONE) ? THUMB_OK : THUMB_FAIL;
}

static int __check_path_validity(const char *path)
{
	thumb_retvm_if(!path, THUMB_FAIL, "Invalid path");

	if (access(path, R_OK) < 0) {
		if (errno == EACCES || errno == EPERM) {
			thumb_err("Fail to open path: Permission Denied [%s]", path);
			return  THUMB_PERM;
		} else {
			thumb_err("Fail to open path: Invalid Path [%s]", path);
			return THUMB_FAIL;
		}
	}

	return THUMB_OK;
}

static int __check_thumb_path_validity(const char *path)
{
	char dir_name[PATH_MAX + 1] = { 0, };
	int len = 0;

	if (!path || strlen(path) == 0) {
		thumb_err("Invalid path");
		return THUMB_FAIL;
	}

	strncpy(dir_name, path, PATH_MAX);
	len = strlen(dir_name);
	while (--len) {
		if (dir_name[len] == '/') {
			dir_name[len] = '\0';
			break;
		}
	}

	if (len == 0)
		return THUMB_FAIL;

	if (access(dir_name, W_OK) != 0) {
		if (errno == EACCES || errno == EPERM) {
			thumb_err("No permission to write[%s]", dir_name);
			return THUMB_PERM;
		} else {
			thumb_err("Does not exists[%s]", dir_name);
			return THUMB_FAIL;
		}
	}

	return THUMB_OK;
}

static int __check_parameter_validity_for_file(const char *path, unsigned int width, unsigned int height, const char *thumb_path)
{
	int err = THUMB_OK;

	thumb_retvm_if((width > MAX_THUMB_SIZE || width == 0), THUMB_FAIL, "Invalid width[%d]", width);
	thumb_retvm_if((height > MAX_THUMB_SIZE || height == 0), THUMB_FAIL, "Invalid height[%d]", height);

	/* Check path is accessible */
	err = __check_path_validity(path);
	thumb_retvm_if(err != THUMB_OK, err, "Invalid path");

	/* Check thumbnail path is writable */
	err = __check_thumb_path_validity(thumb_path);
	thumb_retvm_if(err != THUMB_OK, err, "Invalid thumb_path");

	return THUMB_OK;
}

static int __check_parameter_validity_for_buffer(const char *path, unsigned int width, unsigned int height, unsigned char **thumb_buffer, size_t *thumb_size, unsigned int *thumb_width, unsigned int *thumb_height)
{
	thumb_retvm_if((width > MAX_THUMB_SIZE || width == 0), THUMB_FAIL, "Invalid width[%d]", width);
	thumb_retvm_if((height > MAX_THUMB_SIZE || height == 0), THUMB_FAIL, "Invalid height[%d]", height);
	thumb_retvm_if(!thumb_buffer || !thumb_size || !thumb_width || !thumb_height, THUMB_FAIL, "Invalid out param");

	//Check path is accessible
	return __check_path_validity(path);
}

int create_video_thumbnail_to_file(const char *path, unsigned int width, unsigned int height, const char *thumb_path, bool auto_rotate)
{
	int err = THUMB_OK;
	int video_track_num = 0;
	unsigned int video_width = 0;
	unsigned int video_height = 0;
	void *frame = NULL;
	size_t frame_size = 0;
	mm_util_rotate_type_e rot_type = MM_UTIL_ROTATE_NUM;

	err = __check_parameter_validity_for_file(path, width, height, thumb_path);
	thumb_retvm_if(err != THUMB_OK, err, "Invalid parameter");

	//Get video info
	err = __get_video_info(path, &video_track_num, &video_width, &video_height, &frame, &frame_size, &rot_type);
	thumb_retvm_if(err != THUMB_OK, err, "fail to __get_video_info [%d]", err);
	thumb_retvm_if(video_track_num == 0, THUMB_OK, "No video track");

	if (!auto_rotate)
		rot_type = MM_UTIL_ROTATE_0;

	//Extract thumbnail
	err = __get_video_thumb_to_file(video_width, video_height, frame, frame_size, rot_type, thumb_path, width, height);
	if (frame)
		free(frame);

	return err;
}

int create_video_thumbnail_to_buffer(const char *path,
								unsigned int width,
								unsigned int height,
								unsigned char **thumb_buffer,
								size_t *thumb_size,
								unsigned int *thumb_width,
								unsigned int *thumb_height)
{
	int err = THUMB_OK;
	int video_track_num = 0;
	unsigned int video_w = 0;
	unsigned int video_h = 0;
	void *frame = NULL;
	size_t frame_size = 0;
	mm_util_image_h img = NULL;

	err = __check_parameter_validity_for_buffer(path, width, height, thumb_buffer, thumb_size, thumb_width, thumb_height);
	thumb_retvm_if(err != THUMB_OK, err, "Invalid parameter");

	//Get video info
	err = __get_video_info(path, &video_track_num, &video_w, &video_h, &frame, &frame_size, NULL);
	thumb_retvm_if(err != THUMB_OK, err, "fail to __get_video_info [%d]", err);
	thumb_retvm_if(video_track_num == 0, THUMB_OK, "No video track");

	//Extract thumbnail
	err = __get_video_thumb_to_buffer(video_w, video_h, frame, frame_size, width, height, &img);
	if (frame)
		free(frame);

	if (err != THUMB_OK)
		return err;

	err = mm_image_get_image(img, thumb_width, thumb_height, NULL, thumb_buffer, thumb_size);
	mm_image_destroy_image(img);

	return (err == MM_UTIL_ERROR_NONE) ? THUMB_OK : THUMB_FAIL;
}

static int __adjust_thumb_ratio(const char *path, unsigned int *width, unsigned int *height,
				unsigned int *image_w, unsigned int *image_h, mm_util_img_codec_type *image_type)
{
	int err = MM_UTIL_ERROR_NONE;
#if defined(ENABLE_IMAGE_SIZE_LIMITATION)
	const size_t image_size_limit[IMG_CODEC_UNKNOWN_TYPE] = {
		[IMG_CODEC_JPEG] = (4096 * 4096),
		[IMG_CODEC_PNG] = (3000 * 3000),
		[IMG_CODEC_GIF] = (3000 * 3000),
	};
#endif

	err = mm_util_extract_image_info(path, image_type, image_w, image_h);
	thumb_retvm_if(err != MM_UTIL_ERROR_NONE, THUMB_FAIL, "mm_util_extract_image_info: %d", err);
	thumb_retvm_if(*image_type == IMG_CODEC_UNKNOWN_TYPE, THUMB_UNSUPPORTED, "Unsupported image codec");

#if defined(ENABLE_IMAGE_SIZE_LIMITATION)
	if ((*image_type == IMG_CODEC_JPEG) ||
		(*image_type == IMG_CODEC_PNG) ||
		(*image_type == IMG_CODEC_GIF))
		if ((size_t)((*image_w) * (*image_h)) > image_size_limit[*image_type]) {
			thumb_err("Unsupported image size [%u x %u] limit [%zu]", *image_w, *image_h, image_size_limit[*image_type]);
			return THUMB_UNSUPPORTED;
		}
#endif
	__media_thumb_get_proper_thumb_size(*image_w, *image_h, width, height);

	return THUMB_OK;
}

#if defined(USE_MEMORY_USAGE_REDUCTION)
static mm_util_rotate_type_e __get_image_orientation(const char *path)
{
	ExifData *ed = NULL;
	ExifEntry *entry = NULL;
	short orientation = 0;
	mm_util_rotate_type_e rotation = MM_UTIL_ROTATE_0;

	ed = exif_data_new_from_file(path);
	thumb_retvm_if(!ed, MM_UTIL_ROTATE_0, "no exif data");

	entry = exif_data_get_entry(ed, EXIF_TAG_ORIENTATION);
	if (!entry) {
		thumb_info("no orientation entry");
		exif_data_unref(ed);
		return MM_UTIL_ROTATE_0;
	}

	orientation = exif_get_short(entry->data, exif_data_get_byte_order(ed));

	/* exif orientation
	 * 0 - not available, 1- normal, 2 - hflip, 3 - rot_180,
	 * 4 - vflip, 5 - transpose, 6 - rot_90, 7 - transverse, 8 - rot_270
	 */
	switch (orientation) {
	case 3:
		rotation = MM_UTIL_ROTATE_180;
		break;
	case 6:
		rotation = MM_UTIL_ROTATE_90;
		break;
	case 8:
		rotation = MM_UTIL_ROTATE_270;
		break;
	default:
		thumb_warn("not supported orientation[%d], rotation will be 0", orientation);
		rotation = MM_UTIL_ROTATE_0;
		break;
	};

	exif_data_unref(ed);
	thumb_info("orientation: %d, rotation: %d", orientation, rotation);

	return rotation;
}

static int __create_gif_thumbnail_to_file(const char *path, unsigned int thumb_w, unsigned int thumb_h, const char *thumb_path)
{
	int err = MM_UTIL_ERROR_NONE;
	mm_util_image_h decode_image = NULL;

	err = mm_util_decode_from_gif_file(path, &decode_image);
	thumb_retvm_if(err != MM_UTIL_ERROR_NONE, THUMB_FAIL, "mm_util_decode_from_gif_file failed : %d", err);

	err = mm_util_resize_B_P(decode_image, thumb_w, thumb_h, thumb_path);
	mm_image_destroy_image(decode_image);
	thumb_retvm_if(err != MM_UTIL_ERROR_NONE, THUMB_FAIL, "mm_util_resize_B_P failed : %d", err);

	return THUMB_OK;
}

static int __create_gif_thumbnail_to_buffer(const char *path, unsigned int thumb_w, unsigned int thumb_h, mm_util_image_h *thumbnail)
{
	int err = MM_UTIL_ERROR_NONE;
	mm_util_image_h decode_image = NULL;
	mm_util_image_h rgba_thumbnail = NULL;

	err = mm_util_decode_from_gif_file(path, &decode_image);
	thumb_retvm_if(err != MM_UTIL_ERROR_NONE, THUMB_FAIL, "mm_util_decode_from_gif_file failed : %d", err);

	err = mm_util_resize_B_B(decode_image, thumb_w, thumb_h, &rgba_thumbnail);
	mm_image_destroy_image(decode_image);
	thumb_retvm_if(err != MM_UTIL_ERROR_NONE, THUMB_FAIL, "mm_util_resize_B_B failed : %d", err);

	err = mm_util_convert_B_B(rgba_thumbnail, MM_UTIL_COLOR_BGRA, thumbnail);
	mm_image_destroy_image(rgba_thumbnail);
	thumb_retvm_if(err != MM_UTIL_ERROR_NONE, THUMB_FAIL, "mm_util_convert_B_B failed : %d", err);

	return THUMB_OK;
}

static int __decode_jpeg_with_downscale(const char *path, size_t image_size, size_t thumb_size, mm_util_image_h *decode_image)
{
	mm_util_jpeg_decode_downscale downscale = MM_UTIL_JPEG_DECODE_DOWNSCALE_1_1;

	// The downscale divide each width & height, so we should use squares 4(2*2), 16(4*4), 64(8*8).
	if ((image_size >= thumb_size * 4) && (image_size < thumb_size * 16))
		downscale = MM_UTIL_JPEG_DECODE_DOWNSCALE_1_2;
	else if ((image_size >= thumb_size * 16) && (image_size < thumb_size * 64))
		downscale = MM_UTIL_JPEG_DECODE_DOWNSCALE_1_4;
	else if (image_size >= thumb_size * 64)
		downscale = MM_UTIL_JPEG_DECODE_DOWNSCALE_1_8;

	thumb_info("downscale: %d", downscale);

	return mm_util_decode_from_jpeg_file(path, MM_UTIL_COLOR_BGRA, downscale, decode_image);
}

static int __create_jpeg_thumbnail_to_file(const char *path, size_t image_size, unsigned int thumb_w, unsigned int thumb_h, const char *thumb_path, bool auto_rotate)
{
	int err = MM_UTIL_ERROR_NONE;
	mm_util_image_h decode_image = NULL;
	mm_util_image_h resize_image = NULL;
	mm_util_rotate_type_e rotation = __get_image_orientation(path);

	err = __decode_jpeg_with_downscale(path, image_size, (size_t)(thumb_w * thumb_h), &decode_image);
	thumb_retvm_if(err != MM_UTIL_ERROR_NONE, THUMB_FAIL, "mm_util_decode_from_jpeg_file failed : %d", err);

	if (auto_rotate && (rotation != MM_UTIL_ROTATE_0)) {
		err = mm_util_resize_B_B(decode_image, thumb_w, thumb_h, &resize_image);
		mm_image_destroy_image(decode_image);
		thumb_retvm_if(err != MM_UTIL_ERROR_NONE, THUMB_FAIL, "mm_util_resize_B_B failed : %d", err);

		err = mm_util_rotate_B_P(resize_image, rotation, thumb_path);
		mm_image_destroy_image(resize_image);
		thumb_retvm_if(err != MM_UTIL_ERROR_NONE, THUMB_FAIL, "mm_util_rotate_B_P failed : %d", err);
	} else {
		err = mm_util_resize_B_P(decode_image, thumb_w, thumb_h, thumb_path);
		mm_image_destroy_image(decode_image);
		thumb_retvm_if(err != MM_UTIL_ERROR_NONE, THUMB_FAIL, "mm_util_resize_B_P failed : %d", err);
	}

	return THUMB_OK;
}

static int __create_jpeg_thumbnail_to_buffer(const char *path, size_t image_size, unsigned int thumb_w, unsigned int thumb_h, mm_util_image_h *thumbnail)
{
	int err = MM_UTIL_ERROR_NONE;
	mm_util_image_h decode_image = NULL;

	err = __decode_jpeg_with_downscale(path, image_size, (size_t)(thumb_w * thumb_h), &decode_image);
	thumb_retvm_if(err != MM_UTIL_ERROR_NONE, THUMB_FAIL, "mm_util_decode_from_jpeg_file failed : %d", err);

	err = mm_util_resize_B_B(decode_image, thumb_w, thumb_h, thumbnail);
	mm_image_destroy_image(decode_image);
	thumb_retvm_if(err != MM_UTIL_ERROR_NONE, THUMB_FAIL, "mm_util_resize_B_B failed : %d", err);

	return THUMB_OK;
}
#endif

int create_image_thumbnail_to_file(const char *path, unsigned int width, unsigned int height, const char *thumb_path, bool auto_rotate)
{
	int err = THUMB_OK;
	unsigned int image_w = 0;
	unsigned int image_h = 0;
	unsigned int thumb_w = width;
	unsigned int thumb_h = height;
	mm_util_img_codec_type image_type = 0;

	err = __check_parameter_validity_for_file(path, width, height, thumb_path);
	thumb_retvm_if(err != THUMB_OK, err, "Invalid parameter");

	err = __adjust_thumb_ratio(path, &thumb_w, &thumb_h, &image_w, &image_h, &image_type);
	thumb_retvm_if(err != THUMB_OK, err, "__adjust_thumb_ratio failed");

#if defined(USE_MEMORY_USAGE_REDUCTION)
	if (image_type == IMG_CODEC_GIF)
		return __create_gif_thumbnail_to_file(path, thumb_w, thumb_h, thumb_path);
	else if (image_type == IMG_CODEC_JPEG)
		return __create_jpeg_thumbnail_to_file(path, (size_t)(image_w * image_h), thumb_w, thumb_h, thumb_path, auto_rotate);
#endif

	if (auto_rotate)
		err = mm_util_resize_and_rotate_P_P(path, thumb_w, thumb_h, thumb_path);
	else
		err = mm_util_resize_P_P(path, thumb_w, thumb_h, thumb_path);
	thumb_retvm_if(err != MM_UTIL_ERROR_NONE, THUMB_FAIL, "mm_util_resize_P_P failed : %d", err);

	return THUMB_OK;
}

int create_image_thumbnail_to_buffer(const char *path, unsigned int width, unsigned int height, unsigned char **thumb_buffer, size_t *thumb_size, unsigned int *thumb_width, unsigned int *thumb_height)
{
	int err = THUMB_OK;
	unsigned int image_w = 0;
	unsigned int image_h = 0;
	unsigned int thumb_w = width;
	unsigned int thumb_h = height;
	mm_util_image_h img = NULL;
	mm_util_img_codec_type image_type = 0;

	err = __check_parameter_validity_for_buffer(path, width, height, thumb_buffer, thumb_size, thumb_width, thumb_height);
	thumb_retvm_if(err != THUMB_OK, err, "Invalid parameter");

	err = __adjust_thumb_ratio(path, &thumb_w, &thumb_h, &image_w, &image_h, &image_type);
	thumb_retvm_if(err != THUMB_OK, err, "__adjust_thumb_ratio failed");

#if defined(USE_MEMORY_USAGE_REDUCTION)
	if (image_type == IMG_CODEC_GIF) {
		err = __create_gif_thumbnail_to_buffer(path, thumb_w, thumb_h, &img);
		thumb_retvm_if(err != MM_UTIL_ERROR_NONE, THUMB_FAIL, "__create_gif_thumbnail_to_buffer failed : %d", err);
	} else if (image_type == IMG_CODEC_JPEG) {
		err = __create_jpeg_thumbnail_to_buffer(path, (size_t)(image_w * image_h), thumb_w, thumb_h, &img);
		thumb_retvm_if(err != MM_UTIL_ERROR_NONE, THUMB_FAIL, "__create_jpeg_thumbnail_to_buffer failed : %d", err);
	} else
#endif
	{
		err = mm_util_resize_P_B(path, thumb_w, thumb_h, MM_UTIL_COLOR_BGRA, &img);
		thumb_retvm_if(err != MM_UTIL_ERROR_NONE, THUMB_FAIL, "mm_util_resize_P_B failed : %d", err);
	}

	err = mm_image_get_image(img, thumb_width, thumb_height, NULL, thumb_buffer, thumb_size);

	mm_image_destroy_image(img);

	return (err == MM_UTIL_ERROR_NONE) ? THUMB_OK : THUMB_FAIL;
}

static int __get_media_type(const char *path, thumbnail_media_type_e *media_type)
{
	int ret = THUMB_OK;
	char mime[MIME_MAX_LEN] = {0,};

	ret = __check_path_validity(path);
	thumb_retv_if(ret != THUMB_OK, ret);

	ret = aul_get_mime_from_file(path, mime, MIME_MAX_LEN);
	thumb_retvm_if(ret < 0, THUMB_FAIL, "aul_get_mime_from_file failed");

	thumb_dbg("mime type : %s", mime);

	if (strstr(mime, "image") != NULL) {
		thumb_retvm_if(!strcmp(mime, MIME_TYPE_TIFF), THUMB_UNSUPPORTED, "Unsupported type");
		*media_type = MEDIA_THUMB_IMAGE;
		return THUMB_OK;
	}

	if (strstr(mime, "video") != NULL) {
		*media_type = MEDIA_THUMB_VIDEO;
		return THUMB_OK;
	}

	if (strcmp(mime, MIME_TYPE_ASF) == 0) {
		*media_type = MEDIA_THUMB_VIDEO;
		return THUMB_OK;
	}

	return THUMB_UNSUPPORTED;
}

int create_thumbnail_to_buffer(const char *path, unsigned int width, unsigned int height, unsigned char **thumb_buffer, size_t *thumb_size, unsigned int *thumb_width, unsigned int *thumb_height)
{
	int ret = THUMB_OK;
	thumbnail_media_type_e type = MEDIA_THUMB_INVALID;

	ret = __get_media_type(path, &type);
	thumb_retvm_if(ret != THUMB_OK, ret, "__get_media_type failed");

	if (type == MEDIA_THUMB_IMAGE)
		return create_image_thumbnail_to_buffer(path, width, height, thumb_buffer, thumb_size, thumb_width, thumb_height);
	else
		return create_video_thumbnail_to_buffer(path, width, height, thumb_buffer, thumb_size, thumb_width, thumb_height);
}

int create_thumbnail_to_file(const char *path, unsigned int width, unsigned int height, const char *thumb_path)
{
	int ret = THUMB_OK;
	regex_t regex;
	thumbnail_media_type_e type = MEDIA_THUMB_INVALID;

	ret = __get_media_type(path, &type);
	thumb_retvm_if(ret != THUMB_OK, ret, "__get_media_type failed");

	if (type == MEDIA_THUMB_IMAGE)
		return create_image_thumbnail_to_file(path, width, height, thumb_path, false);

	if (regcomp(&regex, "[^/]\\.jpe?g$", REG_ICASE | REG_EXTENDED) != 0) {
		thumb_err("regcomp failed");
		return THUMB_FAIL;
	}

	if (regexec(&regex, thumb_path, 0, NULL, 0) == REG_NOMATCH) {
		thumb_err("Unsupported path or extensions [%s]", thumb_path);
		return THUMB_FAIL;
	}

	regfree(&regex);
	return create_video_thumbnail_to_file(path, width, height, thumb_path, false);
}

int get_image_info(const char *path, unsigned int *width, unsigned int *height)
{
	int ret = MM_UTIL_ERROR_NONE;

	ret = mm_util_extract_image_info(path, NULL, width, height);
	thumb_retvm_if(ret != MM_UTIL_ERROR_NONE, THUMB_FAIL, "mm_util_extract_image_info failed");

	return THUMB_OK;
}