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path: root/src/media-thumb-internal.c
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/*
 * libmedia-thumbnail
 *
 * Copyright (c) 2000 - 2011 Samsung Electronics Co., Ltd. All rights reserved.
 *
 * Contact: Hyunjun Ko <zzoon.ko@samsung.com>
 *
 * 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 "media-thumb-debug.h"
#include "media-thumb-util.h"
#include "media-thumb-internal.h"
#include "media-thumb-ipc.h"
#include "media-thumb-db.h"

#include <sys/types.h>
#include <fcntl.h>
#include <unistd.h>

#include <mm_file.h>
#include <mm_util_magick.h>

static void __media_thumb_get_proper_thumb_size(unsigned int origin_width, unsigned int origin_height, unsigned int *thumb_width, unsigned int *thumb_height)
{
	bool portrait = false;
	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");

	if (origin_width < origin_height)
		portrait = true;

	/* Set smaller length to default size */
	if (portrait) {
		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);

	return;
}

int _media_thumb_general(const char *origin_path, const char *thumb_path, int thumb_width, int thumb_height, media_thumb_info *thumb_info)
{
	int err = MS_MEDIA_ERR_NONE;
	mm_util_image_h img = NULL;
	unsigned char *buf = NULL;
	unsigned int width = 0;
	unsigned int height = 0;
	size_t size = 0;
	mm_util_color_format_e format = MM_UTIL_COLOR_NUM;

	if (thumb_path != NULL) {
		err = mm_util_resize_P_P(origin_path, thumb_width, thumb_height, thumb_path);
	} else {
		err = mm_util_resize_P_B(origin_path, thumb_width, thumb_height, MM_UTIL_COLOR_BGRA, &img);
		if (err != MM_UTIL_ERROR_NONE) {
			thumb_err("mm_util_resize_P_B failed : %d", err);
			return MS_MEDIA_ERR_INTERNAL;
		}

		mm_image_get_image(img, &width, &height, &format, &buf, &size);
		thumb_info->data = buf;
		thumb_info->size = size;
		thumb_info->width = width;
		thumb_info->height = height;
		mm_image_destroy_image(img);
	}

	return err;
}

int _media_thumb_image(const char *origin_path, char *thumb_path, unsigned int thumb_width, unsigned int thumb_height, media_thumb_info *thumb_info)
{
	int err = MS_MEDIA_ERR_NONE;
	mm_util_img_codec_type image_type = 0;
	unsigned int origin_w = 0;
	unsigned int origin_h = 0;

	err = mm_util_extract_image_info(origin_path, &image_type, &origin_w, &origin_h);
	if (err != MS_MEDIA_ERR_NONE) {
		thumb_warn("Getting image info is failed err: %d", err);
		return MS_MEDIA_ERR_INTERNAL;
	}

	if ((image_type != IMG_CODEC_JPEG) && (origin_w * origin_h > THUMB_MAX_ALLOWED_MEM_FOR_THUMB)) {
		thumb_warn("This original image is too big");
		return MS_MEDIA_ERR_THUMB_TOO_BIG;
	}

	__media_thumb_get_proper_thumb_size(origin_w, origin_h, &thumb_width, &thumb_height);

	if (image_type == IMG_CODEC_PNG) {
		if (thumb_path != NULL) {
			char file_ext[10];
			err = _media_thumb_get_file_ext(origin_path, file_ext, sizeof(file_ext));
			if (strncasecmp(file_ext, "png", 3) == 0) {
				int len = strlen(thumb_path);
				thumb_path[len - 3] = 'p';
				thumb_path[len - 2] = 'n';
				thumb_path[len - 1] = 'g';
			}
		}
		err = _media_thumb_general(origin_path, thumb_path, thumb_width, thumb_height, thumb_info);
	} else if (image_type == IMG_CODEC_JPEG || image_type == IMG_CODEC_GIF || image_type == IMG_CODEC_BMP || image_type == IMG_CODEC_WBMP) {
		err = _media_thumb_general(origin_path, thumb_path, thumb_width, thumb_height, thumb_info);
	} else {
		thumb_warn("Unsupported image type");
		return MS_MEDIA_ERR_THUMB_UNSUPPORTED;
	}

	return err;
}

static void __get_rotation_and_cdis(const char *origin_path, mm_util_magick_rotate_type *rot_type, int *cdis_value)
{
	int err = MS_MEDIA_ERR_NONE;
	MMHandleType tag = (MMHandleType) NULL;
	char *p = NULL;
	int size = 0;
	char *err_msg = NULL;
	int _cdis_value = 0;
	mm_util_magick_rotate_type _rot_type = MM_UTIL_ROTATE_NUM;

	/* Get Content Tag attribute for orientation */
	err = mm_file_create_tag_attrs(&tag, origin_path);
	if (err != FILEINFO_ERROR_NONE) {
		*rot_type = MM_UTIL_ROTATE_0;
		*cdis_value = 0;
		return;
	}

	err = mm_file_get_attrs(tag, &err_msg, MM_FILE_TAG_ROTATE, &p, &size, NULL);
	if (err == FILEINFO_ERROR_NONE && size >= 0) {
		if (p == NULL) {
			_rot_type = MM_UTIL_ROTATE_0;
		} else {
			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);
	} else {
		thumb_dbg("There is NOT tag rotate");
		_rot_type = MM_UTIL_ROTATE_0;
		SAFE_FREE(err_msg);
	}

	err = mm_file_get_attrs(tag, &err_msg, MM_FILE_TAG_CDIS, &_cdis_value, NULL);
	if (err != FILEINFO_ERROR_NONE) {
		_cdis_value = 0;
		SAFE_FREE(err_msg);
	}

	*rot_type = _rot_type;
	*cdis_value = _cdis_value;

	err = mm_file_destroy_tag_attrs(tag);
	if (err != FILEINFO_ERROR_NONE) {
		thumb_err("fail to free tag attr - err(%x)", err);
	}

	return;
}

static int __get_video_info(int cdis_value, const char *origin_path, int *video_track_num, unsigned int *width, unsigned int *height, void **frame, size_t *size)
{
	int err = MS_MEDIA_ERR_NONE;
	MMHandleType content = (MMHandleType) NULL;
	char *err_msg = NULL;
	int _video_track_num = 0;
	int _width = 0;
	int _height = 0;
	size_t _size = 0;
	void *_frame = NULL;

	if (cdis_value == 1) {
		thumb_warn("This is CDIS vlaue 1");
		err = mm_file_create_content_attrs_safe(&content, origin_path);
	} else {
		err = mm_file_create_content_attrs(&content, origin_path);
	}

	if (err != FILEINFO_ERROR_NONE) {
		thumb_err("mm_file_create_content_attrs fails : %d", err);
		return MS_MEDIA_ERR_INTERNAL;
	}

	err = mm_file_get_attrs(content, &err_msg, MM_FILE_CONTENT_VIDEO_TRACK_COUNT, &_video_track_num, NULL);
	if (err != FILEINFO_ERROR_NONE) {
		thumb_err("mm_file_get_attrs fails : %s", err_msg);
		SAFE_FREE(err_msg);
		mm_file_destroy_content_attrs(content);
		return MS_MEDIA_ERR_INTERNAL;
	}

	*video_track_num = _video_track_num;

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

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

	if (err != FILEINFO_ERROR_NONE) {
		thumb_err("mm_file_get_attrs fails : %s", err_msg);
		SAFE_FREE(err_msg);
		mm_file_destroy_content_attrs(content);
		return MS_MEDIA_ERR_INTERNAL;
	}

	thumb_dbg("W[%d] H[%d] Size[%zu] Frame[%p]", _width, _height, _size, _frame);
	if (!_frame || !_width || !_height) {
		mm_file_destroy_content_attrs(content);
		return MS_MEDIA_ERR_INTERNAL;
	}


	*width = _width;
	*height = _height;
	*size = _size;
	*frame = calloc(1, _size);
	memcpy(*frame, _frame, _size);

	mm_file_destroy_content_attrs(content);

	return MS_MEDIA_ERR_NONE;
}

static int __get_video_thumb(int width, int height, void *frame, size_t size, mm_util_magick_rotate_type rot_type, const char *thumb_path, unsigned int thumb_width, unsigned int thumb_height, mm_util_image_h *dst_img)
{
	int err = MS_MEDIA_ERR_NONE;
	mm_util_image_h img = NULL;
	mm_util_image_h resize_img = NULL;

	__media_thumb_get_proper_thumb_size(width, height, &thumb_width, &thumb_height);
	if (thumb_width <= 0 || thumb_height <= 0) {
		thumb_err("Failed to get thumb size");
		return MS_MEDIA_ERR_INTERNAL;
	}

	thumb_dbg("Origin:W[%d] H[%d] Proper:W[%d] H[%d]", width, height, thumb_width, thumb_height);

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

	if (width > thumb_width || height > thumb_height) {
		if (rot_type != MM_UTIL_ROTATE_0) {
			if (STRING_VALID(thumb_path)) {
				err = mm_util_resize_B_B(img, thumb_width, thumb_height, &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_B(img, thumb_width, thumb_height, &resize_img);
				if (err != MM_UTIL_ERROR_NONE)
					goto ERROR;

				err = mm_util_rotate_B_B(resize_img, rot_type, dst_img);
			}
		} else {
			if (STRING_VALID(thumb_path))
				err = mm_util_resize_B_P(img, thumb_width, thumb_height, thumb_path);
			else
				err = mm_util_resize_B_B(img, thumb_width, thumb_height, dst_img);
		}
	} else {
		if (rot_type != MM_UTIL_ROTATE_0) {
			if (STRING_VALID(thumb_path)) {
				err = mm_util_rotate_B_P(img, rot_type, thumb_path);
			} else {
				err = mm_util_rotate_B_B(img, rot_type, dst_img);
			}
		} else {
			if (STRING_VALID(thumb_path)) {
				err = mm_util_resize_B_P(img, width, height, thumb_path);
			} else {
				err = mm_image_clone_image(img, dst_img);
			}
		}
	}

ERROR:
	mm_image_destroy_image(img);
	mm_image_destroy_image(resize_img);
	if (err != MS_MEDIA_ERR_NONE)
		return MS_MEDIA_ERR_INTERNAL;

	return MS_MEDIA_ERR_NONE;
}

int _media_thumb_video(const char *origin_path, const char *thumb_path, int thumb_width, int thumb_height, media_thumb_info *thumb_info)
{
	int err = MS_MEDIA_ERR_NONE;
	int cdis_value = 0;
	void *frame = NULL;
	int video_track_num = 0;
	unsigned int width = 0;
	unsigned int height = 0;
	mm_util_image_h dst_img = NULL;
	unsigned char *buf = NULL;
	size_t size = 0;
	mm_util_color_format_e format = MM_UTIL_COLOR_NUM;
	mm_util_magick_rotate_type rot_type = MM_UTIL_ROTATE_NUM;

	__get_rotation_and_cdis(origin_path, &rot_type, &cdis_value);
	err = __get_video_info(cdis_value, origin_path, &video_track_num, &width, &height, &frame, &size);
	thumb_retvm_if(err != MM_UTIL_ERROR_NONE, err, "fail to __get_video_info [%d]", err);
	thumb_retvm_if(video_track_num == 0, MM_UTIL_ERROR_NONE, "No video track");

	if (STRING_VALID(thumb_path)) {
		err = __get_video_thumb(width, height, frame, size, rot_type, thumb_path, thumb_width, thumb_height, NULL);

	} else if (thumb_info) {
		err = __get_video_thumb(width, height, frame, size, rot_type, NULL, thumb_width, thumb_height, &dst_img);
		if (err == MS_MEDIA_ERR_NONE) {
			err = mm_image_get_image(dst_img, &width, &height, &format, &buf, &size);
			thumb_info->data = buf;
			thumb_info->size = size;
			thumb_info->width = width;
			thumb_info->height = height;
		}

		mm_image_destroy_image(dst_img);
	} else {
		thumb_err("Invalid parameter");
		err = MS_MEDIA_ERR_INVALID_PARAMETER;
	}

	SAFE_FREE(frame);

	return err;
}

int _media_thumb_get_hash_name(const char *file_full_path, char *thumb_hash_path, size_t max_thumb_path, uid_t uid)
{
	char *hash_name = NULL;
	char file_ext[255] = { 0 };
	char *get_path = NULL;
	int ret_len = 0;
	ms_user_storage_type_e storage_type = -1;
	int ret = MS_MEDIA_ERR_NONE;

	if (file_full_path == NULL || thumb_hash_path == NULL || max_thumb_path <= 0) {
		thumb_err("file_full_path==NULL || thumb_hash_path == NULL || max_thumb_path <= 0");
		return MS_MEDIA_ERR_INVALID_PARAMETER;
	}

	_media_thumb_get_file_ext(file_full_path, file_ext, sizeof(file_ext));

	ret = ms_user_get_storage_type(uid, file_full_path, &storage_type);
	if ((ret != MS_MEDIA_ERR_NONE) || ((storage_type != MS_USER_STORAGE_INTERNAL) && (storage_type != MS_USER_STORAGE_EXTERNAL))) {
		thumb_err_slog("origin path(%s) is invalid. err : [%d] storage_type [%d]", file_full_path, ret, storage_type);
		return MS_MEDIA_ERR_INVALID_PARAMETER;
	}

	hash_name = _media_thumb_generate_hash_name(file_full_path);
	if (hash_name == NULL) {
		thumb_err("_media_thumb_generate_hash_name fail");
		return MS_MEDIA_ERR_INTERNAL;
	}

	ret = ms_user_get_root_thumb_store_path(uid, &get_path);
	if (get_path != NULL)
		ret_len = snprintf(thumb_hash_path, max_thumb_path - 1, "%s/.%s-%s.jpg", get_path, file_ext, hash_name);

	SAFE_FREE(get_path);

	if ((ret_len < 0) || (ret_len > (int)max_thumb_path)) {
		thumb_err("invalid hash path ret_len[%d]", ret_len);
		return MS_MEDIA_ERR_INTERNAL;
	}

	return MS_MEDIA_ERR_NONE;
}