519 lines
15 KiB
C
519 lines
15 KiB
C
/****************************************************************************
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*
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* apps/system/nxrecorder/nxrecorder_main.c
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* Copyright (C) 2017 Pinecone Inc. All rights reserved.
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* Author: Zhong An <zhongan@pinecone.net>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* 3. Neither the name NuttX nor the names of its contributors may be
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* used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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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 <nuttx/config.h>
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#include <nuttx/audio/audio.h>
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#include <sys/types.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include <errno.h>
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#include <assert.h>
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#include "system/readline.h"
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#include "system/nxrecorder.h"
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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#define NXRECORDER_VER "1.00"
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#ifdef CONFIG_NXRECORDER_INCLUDE_HELP
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# define NXRECORDER_HELP_TEXT(x) #x
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#else
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# define NXRECORDER_HELP_TEXT(x)
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#endif
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/****************************************************************************
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* Private Type Declarations
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****************************************************************************/
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struct mp_cmd_s
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{
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const char *cmd; /* The command text */
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const char *arghelp; /* Text describing the args */
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nxrecorder_func pFunc; /* Pointer to command handler */
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const char *help; /* The help text */
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};
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/****************************************************************************
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* Private Function Prototypes
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****************************************************************************/
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static int nxrecorder_cmd_quit(FAR struct nxrecorder_s *pRecorder,
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FAR char *parg);
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static int nxrecorder_cmd_recordraw(FAR struct nxrecorder_s *pRecorder,
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FAR char *parg);
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static int nxrecorder_cmd_device(FAR struct nxrecorder_s *pRecorder,
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FAR char *parg);
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#ifndef CONFIG_AUDIO_EXCLUDE_PAUSE_RESUME
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static int nxrecorder_cmd_pause(FAR struct nxrecorder_s *pRecorder,
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FAR char *parg);
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static int nxrecorder_cmd_resume(FAR struct nxrecorder_s *pRecorder,
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FAR char *parg);
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#endif
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#ifndef CONFIG_AUDIO_EXCLUDE_STOP
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static int nxrecorder_cmd_stop(FAR struct nxrecorder_s *pRecorder,
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FAR char *parg);
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#endif
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#ifdef CONFIG_NXRECORDER_INCLUDE_HELP
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static int nxrecorder_cmd_help(FAR struct nxrecorder_s *pRecorder,
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FAR char *parg);
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#endif
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/****************************************************************************
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* Private Data
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****************************************************************************/
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static const struct mp_cmd_s g_nxrecorder_cmds[] =
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{
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{ "device", "devfile", nxrecorder_cmd_device, NXRECORDER_HELP_TEXT(Specify a preferred audio device) },
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#ifdef CONFIG_NXRECORDER_INCLUDE_HELP
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{ "h", "", nxrecorder_cmd_help, NXRECORDER_HELP_TEXT(Display help for commands) },
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{ "help", "", nxrecorder_cmd_help, NXRECORDER_HELP_TEXT(Display help for commands) },
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#endif
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{ "recordraw", "filename", nxrecorder_cmd_recordraw, NXRECORDER_HELP_TEXT(Record a pcm raw file) },
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#ifndef CONFIG_AUDIO_EXCLUDE_PAUSE_RESUME
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{ "pause", "", nxrecorder_cmd_pause, NXRECORDER_HELP_TEXT(Pause record) },
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{ "resume", "", nxrecorder_cmd_resume, NXRECORDER_HELP_TEXT(Resume record) },
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#endif
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#ifndef CONFIG_AUDIO_EXCLUDE_STOP
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{ "stop", "", nxrecorder_cmd_stop, NXRECORDER_HELP_TEXT(Stop record) },
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#endif
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{ "q", "", nxrecorder_cmd_quit, NXRECORDER_HELP_TEXT(Exit NxRecorder) },
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{ "quit", "", nxrecorder_cmd_quit, NXRECORDER_HELP_TEXT(Exit NxRecorder) },
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};
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static const int g_nxrecorder_cmd_count = sizeof(g_nxrecorder_cmds) / sizeof(struct mp_cmd_s);
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/****************************************************************************
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* Private Functions
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****************************************************************************/
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/****************************************************************************
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* Name: nxrecorder_cmd_recordraw
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*
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* nxrecorder_cmd_recordraw() records the raw data file using the nxrecorder
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* context.
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*
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****************************************************************************/
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static int nxrecorder_cmd_recordraw(FAR struct nxrecorder_s *pRecorder,
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FAR char *parg)
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{
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int ret;
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int channels = 0;
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int bpsamp = 0;
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int samprate = 0;
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char filename[128];
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sscanf(parg, "%s %d %d %d", filename, &channels, &bpsamp, &samprate);
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/* Try to record the file specified */
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ret = nxrecorder_recordraw(pRecorder, filename, channels, bpsamp, samprate);
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/* nxrecorder_recordfile returned values:
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*
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* OK File is being recorded
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* -EBUSY The media device is busy
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* -ENOSYS The media file is an unsupported type
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* -ENODEV No audio device suitable to record the media type
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* -ENOENT The media file was not found
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*/
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switch (-ret)
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{
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case OK:
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break;
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case ENODEV:
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printf("No suitable Audio Device found\n");
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break;
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case EBUSY:
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printf("Audio device busy\n");
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break;
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case ENOENT:
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printf("File %s not found\n", filename);
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break;
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case ENOSYS:
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printf("Unknown audio format\n");
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break;
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default:
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printf("Error recording file: %d\n", -ret);
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break;
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}
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return ret;
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}
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/****************************************************************************
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* Name: nxrecorder_cmd_stop
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*
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* nxrecorder_cmd_stop() stops record of currently recording file
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* context.
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*
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****************************************************************************/
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#ifndef CONFIG_AUDIO_EXCLUDE_STOP
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static int nxrecorder_cmd_stop(FAR struct nxrecorder_s *pRecorder,
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FAR char *parg)
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{
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/* Stop the record */
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nxrecorder_stop(pRecorder);
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return OK;
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}
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#endif
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/****************************************************************************
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* Name: nxrecorder_cmd_pause
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*
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* nxrecorder_cmd_pause() pauses record of currently recording file
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* context.
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*
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****************************************************************************/
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#ifndef CONFIG_AUDIO_EXCLUDE_PAUSE_RESUME
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static int nxrecorder_cmd_pause(FAR struct nxrecorder_s *pRecorder,
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FAR char *parg)
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{
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/* Pause the record */
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nxrecorder_pause(pRecorder);
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return OK;
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}
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#endif
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/****************************************************************************
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* Name: nxrecorder_cmd_resume
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*
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* nxrecorder_cmd_resume() resumes record of currently recording file
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* context.
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*
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****************************************************************************/
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#ifndef CONFIG_AUDIO_EXCLUDE_PAUSE_RESUME
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static int nxrecorder_cmd_resume(FAR struct nxrecorder_s *pRecorder,
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FAR char *parg)
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{
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/* Resume the record */
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nxrecorder_resume(pRecorder);
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return OK;
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}
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#endif
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/****************************************************************************
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* Name: nxrecorder_cmd_device
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*
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* nxrecorder_cmd_device() sets the preferred audio device for record
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*
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****************************************************************************/
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static int nxrecorder_cmd_device(FAR struct nxrecorder_s *pRecorder,
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FAR char *parg)
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{
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int ret;
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char path[32];
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/* First try to open the file directly */
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ret = nxrecorder_setdevice(pRecorder, parg);
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if (ret == -ENOENT)
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{
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/* Append the /dev/audio path and try again */
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#ifdef CONFIG_AUDIO_CUSTOM_DEV_PATH
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#ifdef CONFIG_AUDIO_DEV_ROOT
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snprintf(path, sizeof(path), "/dev/%s", parg);
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#else
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snprintf(path, sizeof(path), CONFIG_AUDIO_DEV_PATH "/%s", parg);
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#endif
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#else
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snprintf(path, sizeof(path), "/dev/audio/%s", parg);
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#endif
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ret = nxrecorder_setdevice(pRecorder, path);
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}
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/* Test if the device file exists */
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if (ret == -ENOENT)
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{
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/* Device doesn't exit. Report error */
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printf("Device %s not found\n", parg);
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return ret;
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}
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/* Test if is is an audio device */
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if (ret == -ENODEV)
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{
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printf("Device %s is not an audio device\n", parg);
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return ret;
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}
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if (ret < 0)
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{
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return ret;
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}
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/* Device set successfully */
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return OK;
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}
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/****************************************************************************
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* Name: nxrecorder_cmd_quit
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*
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* nxrecorder_cmd_quit() terminates the application
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****************************************************************************/
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static int nxrecorder_cmd_quit(FAR struct nxrecorder_s *pRecorder,
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FAR char *parg)
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{
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/* Stop the record if any */
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#ifndef CONFIG_AUDIO_EXCLUDE_STOP
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nxrecorder_stop(pRecorder);
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#endif
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return OK;
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}
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/****************************************************************************
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* Name: nxrecorder_cmd_help
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*
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* nxrecorder_cmd_help() display the application's help information on
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* supported commands and command syntax.
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****************************************************************************/
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#ifdef CONFIG_NXRECORDER_INCLUDE_HELP
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static int nxrecorder_cmd_help(FAR struct nxrecorder_s *pRecorder,
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FAR char *parg)
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{
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int len;
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int maxlen = 0;
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int x;
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int c;
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/* Calculate length of longest cmd + arghelp */
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for (x = 0; x < g_nxrecorder_cmd_count; x++)
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{
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len = strlen(g_nxrecorder_cmds[x].cmd) +
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strlen(g_nxrecorder_cmds[x].arghelp);
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if (len > maxlen)
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{
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maxlen = len;
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}
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}
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printf("NxRecorder commands\n================\n");
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for (x = 0; x < g_nxrecorder_cmd_count; x++)
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{
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/* Print the command and it's arguments */
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printf(" %s %s",
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g_nxrecorder_cmds[x].cmd, g_nxrecorder_cmds[x].arghelp);
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/* Calculate number of spaces to print before the help text */
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len = maxlen - (strlen(g_nxrecorder_cmds[x].cmd) +
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strlen(g_nxrecorder_cmds[x].arghelp));
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for (c = 0; c < len; c++)
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{
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printf(" ");
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}
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printf(" : %s\n", g_nxrecorder_cmds[x].help);
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}
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return OK;
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}
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#endif
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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/****************************************************************************
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* Name: nxrecorder
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*
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* nxrecorder() reads in commands from the console using the readline
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* system add-in and implements a command-line based pcm raw data recorder
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* that uses the NuttX audio system to record pcm raw data files read in
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* from the audio device. Commands are provided for setting volume, base
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* and other audio features, as well as for pausing and stopping the
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* record.
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*
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* Input Parameters:
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* buf - The user allocated buffer to be filled.
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* buflen - the size of the buffer.
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* instream - The stream to read characters from
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* outstream - The stream to each characters to.
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*
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* Returned values:
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* On success, the (positive) number of bytes transferred is returned.
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* EOF is returned to indicate either an end of file condition or a
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* failure.
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*
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****************************************************************************/
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int main(int argc, FAR char *argv[])
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{
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char buffer[CONFIG_NSH_LINELEN];
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int len;
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int x;
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int running;
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char *cmd;
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char *arg;
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FAR struct nxrecorder_s *pRecorder;
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printf("NxRecorder version " NXRECORDER_VER "\n");
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printf("h for commands, q to exit\n");
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printf("\n");
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/* Initialize our NxRecorder context */
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pRecorder = nxrecorder_create();
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if (pRecorder == NULL)
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{
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printf("Error: Out of RAM\n");
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return -ENOMEM;
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}
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/* Loop until the user exits */
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running = TRUE;
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while (running)
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{
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/* Print a prompt */
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printf("nxrecorder> ");
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fflush(stdout);
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/* Read a line from the terminal */
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len = readline(buffer, sizeof(buffer), stdin, stdout);
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buffer[len] = '\0';
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if (len > 0)
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{
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if (strncmp(buffer, "!", 1) != 0)
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{
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/* nxrecorder command */
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if (buffer[len - 1] == '\n')
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{
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buffer[len - 1] = '\0';
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}
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/* Parse the command from the argument */
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cmd = strtok_r(buffer, " \n", &arg);
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if (cmd == NULL)
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{
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continue;
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}
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/* Remove leading spaces from arg */
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while (*arg == ' ')
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{
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arg++;
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}
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/* Find the command in our cmd array */
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for (x = 0; x < g_nxrecorder_cmd_count; x++)
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{
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if (strcmp(cmd, g_nxrecorder_cmds[x].cmd) == 0)
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{
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/* Command found. Call it's handler if not NULL */
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if (g_nxrecorder_cmds[x].pFunc != NULL)
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{
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g_nxrecorder_cmds[x].pFunc(pRecorder, arg);
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}
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/* Test if it is a quit command */
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if (g_nxrecorder_cmds[x].pFunc == nxrecorder_cmd_quit)
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{
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running = FALSE;
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}
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break;
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}
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}
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}
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else
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{
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#ifdef CONFIG_SYSTEM_SYSTEM
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/* Transfer nuttx shell */
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system(buffer + 1);
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#else
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printf("%s: unknown nxplayer command\n", buffer);
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#endif
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}
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}
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}
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/* Release the NxRecorder context */
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nxrecorder_release(pRecorder);
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return OK;
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}
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