graphics/jpgresizetool: Add libjpeg resize tool

[keever50]

Summary

Add a libjpeg based JPEG resize tool.
Simple resizer that can resize JPEGs using
"jpgresize input.jpg output.jpg scale_denom(1,2,4,8) quality%". Tries to use little memory by scanning per line.

Impact

Allows users to quickly resize JPEG images using a simple command. Useful for in scripts to generate thumbnails or experiment with jpeg compression and size ratios.

Testing

This app is tested during the development of a project where thumbnails are generated from photos.

[keever50]

Also this tool allows a denom of 16, which is not possible. Should be removed.

[keever50]

Ill get back to this later this week if the tweaks are still required!

[linguini1]

Ill get back to this later this week if the tweaks are still required!

That would be great!

[simbit18]

Hi @keever50 , Please add build with CMake

[keever50]

@simbit18 Hi, I'm not familiar with CMake in NuttX and I'm not sure how to get this to work with my current project, so I cannot test the addition of this. I hope it is okay to leave this out for now.

[simbit18]

@simbit18 Hi, I'm not familiar with CMake in NuttX and I'm not sure how to get this to work with my current project, so I cannot test the addition of this. I hope it is okay to leave this out for now.

Hi @keever50, add

# ##############################################################################
# apps/graphics/jpgresizetool/CMakeLists.txt
#
# SPDX-License-Identifier: Apache-2.0
#
# Licensed to the Apache Software Foundation (ASF) under one or more contributor
# license agreements.  See the NOTICE file distributed with this work for
# additional information regarding copyright ownership.  The ASF licenses this
# file to you 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.
#
# ##############################################################################

if(CONFIG_GRAPHICS_JPGRESIZETOOL)
  nuttx_add_application(
    NAME
    jpgresize
    STACKSIZE
    4096
    MODULE
    ${CONFIG_GRAPHICS_JPGRESIZETOOL}
    SRCS
    resize.c)
endif()

[keever50]

@simbit18 Hi, I'm not familiar with CMake in NuttX and I'm not sure how to get this to work with my current project, so I cannot test the addition of this. I hope it is okay to leave this out for now.

Hi @keever50, add

# ##############################################################################
# apps/graphics/jpgresizetool/CMakeLists.txt
#
# SPDX-License-Identifier: Apache-2.0
#
# Licensed to the Apache Software Foundation (ASF) under one or more contributor
# license agreements.  See the NOTICE file distributed with this work for
# additional information regarding copyright ownership.  The ASF licenses this
# file to you 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.
#
# ##############################################################################

if(CONFIG_GRAPHICS_JPGRESIZETOOL)
  nuttx_add_application(
    NAME
    jpgresize
    STACKSIZE
    4096
    MODULE
    ${CONFIG_GRAPHICS_JPGRESIZETOOL}
    SRCS
    resize.c)
endif()

Thanks, done!

[simbit18]

Hi @keever50 , could you add some basic documentation?

https://nuttx.apache.org/docs/latest/applications/graphics/index.html