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add m2m decoder/encoder test
Signed-off-by: yangsen5 <[email protected]>
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‎system/nxcodec/Kconfig

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#
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# For a description of the syntax of this configuration file,
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# see the file kconfig-language.txt in the NuttX tools repository.
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#
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config SYSTEM_NXCODEC
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bool "NxCodec test application"
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default n
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---help---
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Enable support for the NxCodec test application and optional
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command line interface.
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if SYSTEM_NXCODEC
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config SYSTEM_NXCODEC_PROGNAME
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string "Program name"
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default "nxcodec"
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---help---
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This is the name of the program that will be used when the NSH ELF
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program is installed.
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config SYSTEM_NXCODEC_PRIORITY
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int "nxcodec task priority"
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default 100
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config SYSTEM_NXCODEC_STACKSIZE
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int "nxcodec stack size"
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default DEFAULT_TASK_STACKSIZE
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endif # SYSTEM_NXCODEC

‎system/nxcodec/Make.defs

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############################################################################
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# apps/system/nxcodec/Make.defs
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#
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# Licensed to the Apache Software Foundation (ASF) under one or more
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# contributor license agreements. See the NOTICE file distributed with
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# this work for additional information regarding copyright ownership. The
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# ASF licenses this file to you under the Apache License, Version 2.0 (the
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# "License"); you may not use this file except in compliance with the
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# License. You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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#
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############################################################################
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ifneq ($(CONFIG_SYSTEM_NXCODEC),)
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CONFIGURED_APPS += $(APPDIR)/system/nxcodec
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endif

‎system/nxcodec/Makefile

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############################################################################
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# apps/system/nxcodec/Makefile
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#
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# Licensed to the Apache Software Foundation (ASF) under one or more
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# contributor license agreements. See the NOTICE file distributed with
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# this work for additional information regarding copyright ownership. The
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# ASF licenses this file to you under the Apache License, Version 2.0 (the
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# "License"); you may not use this file except in compliance with the
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# License. You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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#
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############################################################################
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include $(APPDIR)/Make.defs
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CSRCS = nxcodec.c nxcodec_context.c
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# nxcodec test built-in application info
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PROGNAME = $(CONFIG_SYSTEM_NXCODEC_PROGNAME)
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PRIORITY = $(CONFIG_SYSTEM_NXCODEC_PRIORITY)
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STACKSIZE = $(CONFIG_SYSTEM_NXCODEC_STACKSIZE)
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MODULE = $(CONFIG_SYSTEM_NXCODEC)
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# nxcodec test
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MAINSRC = nxcodec_main.c
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include $(APPDIR)/Application.mk

‎system/nxcodec/nxcodec.c

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/****************************************************************************
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* apps/system/nxcodec/nxcodec.c
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership. The
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* ASF licenses this file to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the
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* License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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****************************************************************************/
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <sys/ioctl.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <fcntl.h>
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#include <errno.h>
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#include "nxcodec.h"
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/****************************************************************************
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* Private Functions
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****************************************************************************/
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static inline bool nxcodec_splane_video(FAR struct v4l2_capability *cap)
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{
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return (cap->capabilities & V4L2_CAP_VIDEO_M2M) ||
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((cap->capabilities & V4L2_CAP_STREAMING) &&
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(cap->capabilities & (V4L2_CAP_VIDEO_OUTPUT |
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V4L2_CAP_VIDEO_CAPTURE)));
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}
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static inline bool nxcodec_mplane_video(FAR struct v4l2_capability *cap)
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{
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return (cap->capabilities & V4L2_CAP_VIDEO_M2M_MPLANE) ||
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((cap->capabilities & V4L2_CAP_STREAMING) &&
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(cap->capabilities & (V4L2_CAP_VIDEO_OUTPUT_MPLANE |
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V4L2_CAP_VIDEO_CAPTURE_MPLANE)));
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}
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static int nxcodec_prepare_contexts(FAR nxcodec_t *codec)
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{
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struct v4l2_capability cap;
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int ret;
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memset(&cap, 0, sizeof(cap));
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ret = ioctl(codec->fd, VIDIOC_QUERYCAP, &cap);
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if (ret < 0)
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{
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return -errno;
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}
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if (nxcodec_mplane_video(&cap))
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{
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codec->capture.type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE;
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codec->output.type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE;
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return 0;
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}
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if (nxcodec_splane_video(&cap))
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{
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codec->capture.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
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codec->output.type = V4L2_BUF_TYPE_VIDEO_OUTPUT;
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return 0;
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}
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return -EINVAL;
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}
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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int nxcodec_init(FAR nxcodec_t *codec)
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{
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int ret;
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codec->fd = open(codec->devname, O_RDWR | O_NONBLOCK);
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if (codec->fd < 0)
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{
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return -errno;
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}
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ret = nxcodec_prepare_contexts(codec);
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if (ret < 0)
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{
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goto err0;
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}
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ret = nxcodec_context_get_format(&codec->output);
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if (ret < 0)
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{
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printf("v4l2 output format not supported\n");
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goto err0;
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}
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ret = nxcodec_context_get_format(&codec->capture);
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if (ret < 0)
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{
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printf("v4l2 capture format not supported\n");
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goto err0;
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}
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if (codec->output.fdesc.pixelformat !=
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codec->output.format.fmt.pix.pixelformat)
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{
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ret = -EINVAL;
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goto err0;
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}
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codec->output.format.type = codec->output.type;
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ret = nxcodec_context_set_format(&codec->output);
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if (ret < 0)
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{
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printf("can't set v4l2 output format\n");
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goto err0;
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}
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codec->output.fd = open(codec->output.filename, O_RDONLY);
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if (codec->output.fd < 0)
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{
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printf("Failed to open input file %s \n", codec->output.filename);
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ret = -errno;
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goto err0;
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}
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if (codec->capture.fdesc.pixelformat !=
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codec->capture.format.fmt.pix.pixelformat)
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{
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ret = -EINVAL;
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goto err1;
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}
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codec->capture.format.type = codec->capture.type;
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ret = nxcodec_context_set_format(&codec->capture);
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if (ret < 0)
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{
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printf("can't to set v4l2 capture format\n");
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goto err1;
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}
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codec->capture.fd = open(codec->capture.filename,
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O_WRONLY | O_CREAT, 0644);
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if (codec->capture.fd < 0)
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{
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printf("Failed to open input file %s \n", codec->capture.filename);
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ret = -errno;
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goto err1;
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}
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return 0;
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err1:
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close(codec->output.fd);
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err0:
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close(codec->fd);
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return ret;
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}
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int nxcodec_start(FAR nxcodec_t *codec)
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{
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int ret;
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ret = nxcodec_context_init(&codec->output);
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if (ret < 0)
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{
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printf("can't request output buffers\n");
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return ret;
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}
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ret = nxcodec_context_set_status(&codec->output, VIDIOC_STREAMON);
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if (ret < 0)
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{
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printf("set output VIDIOC_STREAMON failed\n");
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goto err0;
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}
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ret = nxcodec_context_init(&codec->capture);
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if (ret < 0)
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{
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printf("can't request capture buffers\n");
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goto err0;
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}
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ret = nxcodec_context_set_status(&codec->capture, VIDIOC_STREAMON);
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if (ret < 0)
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{
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printf("set capture VIDIOC_STREAMON failed\n");
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goto err1;
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}
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ret = nxcodec_context_enqueue_frame(&codec->output);
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if (ret < 0 && ret != -EAGAIN)
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{
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goto err1;
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}
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return 0;
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err1:
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nxcodec_context_uninit(&codec->capture);
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err0:
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nxcodec_context_uninit(&codec->output);
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return ret;
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}
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int nxcodec_stop(FAR nxcodec_t *codec)
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{
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int ret;
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if (!codec)
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{
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return 0;
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}
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nxcodec_context_uninit(&codec->output);
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ret = nxcodec_context_set_status(&codec->output, VIDIOC_STREAMOFF);
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if (ret < 0)
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{
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printf("set output VIDIOC_STREAMOFF failed\n");
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return ret;
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}
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nxcodec_context_uninit(&codec->capture);
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ret = nxcodec_context_set_status(&codec->capture, VIDIOC_STREAMOFF);
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if (ret < 0)
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{
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printf("set capture VIDIOC_STREAMOFF failed\n");
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return ret;
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}
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return 0;
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}
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int nxcodec_uninit(FAR nxcodec_t *codec)
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{
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close(codec->capture.fd);
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close(codec->output.fd);
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close(codec->fd);
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return 0;
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}

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