/**************************************************************************** * apps/system/nxplayer/nxplayer_main.c * * Copyright (C) 2013 Ken Pettit. All rights reserved. * Author: Ken Pettit * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in * the documentation and/or other materials provided with the * distribution. * 3. Neither the name NuttX nor the names of its contributors may be * used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. * ****************************************************************************/ /**************************************************************************** * Included Files ****************************************************************************/ #include #include #include #include #include #include #include #include #include #include #include /**************************************************************************** * Pre-processor Definitions ****************************************************************************/ #define NXPLAYER_VER "1.04" #ifdef CONFIG_NXPLAYER_INCLUDE_HELP # define NXPLAYER_HELP_TEXT(x) #x #else # define NXPLAYER_HELP_TEXT(x) #endif /**************************************************************************** * Private Type Declarations ****************************************************************************/ struct mp_cmd_s { const char *cmd; /* The command text */ const char *arghelp; /* Text describing the args */ nxplayer_func pFunc; /* Pointer to command handler */ const char *help; /* The help text */ }; /**************************************************************************** * Private Function Prototypes ****************************************************************************/ static int nxplayer_cmd_quit(FAR struct nxplayer_s *pPlayer, char* parg); static int nxplayer_cmd_play(FAR struct nxplayer_s *pPlayer, char* parg); #ifdef CONFIG_NXPLAYER_INCLUDE_SYSTEM_RESET static int nxplayer_cmd_reset(FAR struct nxplayer_s *pPlayer, char* parg); #endif #ifdef CONFIG_NXPLAYER_INCLUDE_PREFERRED_DEVICE static int nxplayer_cmd_device(FAR struct nxplayer_s *pPlayer, char* parg); #endif #ifndef CONFIG_AUDIO_EXCLUDE_PAUSE_RESUME static int nxplayer_cmd_pause(FAR struct nxplayer_s *pPlayer, char* parg); static int nxplayer_cmd_resume(FAR struct nxplayer_s *pPlayer, char* parg); #endif #ifdef CONFIG_NXPLAYER_INCLUDE_MEDIADIR static int nxplayer_cmd_mediadir(FAR struct nxplayer_s *pPlayer, char* parg); #endif #ifndef CONFIG_AUDIO_EXCLUDE_STOP static int nxplayer_cmd_stop(FAR struct nxplayer_s *pPlayer, char* parg); #endif #ifndef CONFIG_AUDIO_EXCLUDE_VOLUME static int nxplayer_cmd_volume(FAR struct nxplayer_s *pPlayer, char* parg); #ifndef CONFIG_AUDIO_EXCLUDE_BALANCE static int nxplayer_cmd_balance(FAR struct nxplayer_s *pPlayer, char* parg); #endif #endif #ifndef CONFIG_AUDIO_EXCLUDE_TONE static int nxplayer_cmd_bass(FAR struct nxplayer_s *pPlayer, char* parg); static int nxplayer_cmd_treble(FAR struct nxplayer_s *pPlayer, char* parg); #endif #ifdef CONFIG_NXPLAYER_INCLUDE_HELP static int nxplayer_cmd_help(FAR struct nxplayer_s *pPlayer, char* parg); #endif /**************************************************************************** * Private Data ****************************************************************************/ static struct mp_cmd_s g_nxplayer_cmds[] = { #ifndef CONFIG_AUDIO_EXCLUDE_VOLUME #ifndef CONFIG_AUDIO_EXCLUDE_BALANCE { "balance", "d%", nxplayer_cmd_balance, NXPLAYER_HELP_TEXT(Set balance percentage (< 50% means more left)) }, #endif #endif #ifndef CONFIG_AUDIO_EXCLUDE_TONE { "bass", "d%", nxplayer_cmd_bass, NXPLAYER_HELP_TEXT(Set bass level percentage) }, #endif #ifdef CONFIG_NXPLAYER_INCLUDE_PREFERRED_DEVICE { "device", "devfile", nxplayer_cmd_device, NXPLAYER_HELP_TEXT(Specify a preferred audio device) }, #endif #ifdef CONFIG_NXPLAYER_INCLUDE_HELP { "h", "", nxplayer_cmd_help, NXPLAYER_HELP_TEXT(Display help for commands) }, { "help", "", nxplayer_cmd_help, NXPLAYER_HELP_TEXT(Display help for commands) }, #endif #ifdef CONFIG_NXPLAYER_INCLUDE_MEDIADIR { "mediadir", "path", nxplayer_cmd_mediadir, NXPLAYER_HELP_TEXT(Change the media directory) }, #endif { "play", "filename", nxplayer_cmd_play, NXPLAYER_HELP_TEXT(Play a media file) }, #ifndef CONFIG_AUDIO_EXCLUDE_PAUSE_RESUME { "pause", "", nxplayer_cmd_pause, NXPLAYER_HELP_TEXT(Pause playback) }, #endif #ifdef CONFIG_NXPLAYER_INCLUDE_SYSTEM_RESET { "reset", "", nxplayer_cmd_reset, NXPLAYER_HELP_TEXT(Perform a HW reset) }, #endif #ifndef CONFIG_AUDIO_EXCLUDE_PAUSE_RESUME { "resume", "", nxplayer_cmd_resume, NXPLAYER_HELP_TEXT(Resume playback) }, #endif #ifndef CONFIG_AUDIO_EXCLUDE_STOP { "stop", "", nxplayer_cmd_stop, NXPLAYER_HELP_TEXT(Stop playback) }, #endif { "tone", "freq secs",NULL, NXPLAYER_HELP_TEXT(Produce a pure tone) }, #ifndef CONFIG_AUDIO_EXCLUDE_TONE { "treble", "d%", nxplayer_cmd_treble, NXPLAYER_HELP_TEXT(Set treble level percentage) }, #endif { "q", "", nxplayer_cmd_quit, NXPLAYER_HELP_TEXT(Exit NxPlayer) }, { "quit", "", nxplayer_cmd_quit, NXPLAYER_HELP_TEXT(Exit NxPlayer) }, #ifndef CONFIG_AUDIO_EXCLUDE_VOLUME { "volume", "d%", nxplayer_cmd_volume, NXPLAYER_HELP_TEXT(Set volume to level specified) } #endif }; static const int g_nxplayer_cmd_count = sizeof(g_nxplayer_cmds) / sizeof(struct mp_cmd_s); /**************************************************************************** * Private Functions ****************************************************************************/ /**************************************************************************** * Name: nxplayer_cmd_play * * nxplayer_cmd_play() plays the specified media file using the nxplayer * context. * ****************************************************************************/ static int nxplayer_cmd_play(FAR struct nxplayer_s *pPlayer, char* parg) { int ret; /* Try to play the file specified */ ret = nxplayer_playfile(pPlayer, parg, AUDIO_FMT_UNDEF, AUDIO_FMT_UNDEF); /* nxplayer_playfile returned values: * * OK File is being played * -EBUSY The media device is busy * -ENOSYS The media file is an unsupported type * -ENODEV No audio device suitable to play the media type * -ENOENT The media file was not found */ if (ret == -ENODEV) { printf("No suitable Audio Device found\n"); } else if (ret == -EBUSY) { printf("Audio device busy\n"); } else if (ret == -ENOENT) { printf("File %s not found\n", parg); } else if (ret == -ENOSYS) { printf("Unknown audio format\n"); } if (ret < 0) { return ret; } /* File playing successfully */ return OK; } /**************************************************************************** * Name: nxplayer_cmd_volume * * nxplayer_cmd_volume() sets the volume level. * ****************************************************************************/ #ifndef CONFIG_AUDIO_EXCLUDE_VOLUME static int nxplayer_cmd_volume(FAR struct nxplayer_s *pPlayer, char* parg) { uint16_t percent; /* If no arg given, then print current volume */ if (parg == NULL || *parg == '\0') { printf("volume: %d\n", pPlayer->volume / 10); } else { /* Get the percentage value from the argument */ percent = (uint16_t) (atof(parg) * 10.0); nxplayer_setvolume(pPlayer, percent); } return OK; } #endif /**************************************************************************** * Name: nxplayer_cmd_bass * * nxplayer_cmd_bass() sets the bass level and range. * ****************************************************************************/ #ifndef CONFIG_AUDIO_EXCLUDE_TONE static int nxplayer_cmd_bass(FAR struct nxplayer_s *pPlayer, char* parg) { uint8_t level_percent; /* If no arg given, then print current bass */ if (parg == NULL || *parg == '\0') { printf("bass: %d\n", pPlayer->bass); } else { /* Get the level and range percentage value from the argument */ level_percent = (uint8_t) atoi(parg); nxplayer_setbass(pPlayer, level_percent); } return OK; } #endif /**************************************************************************** * Name: nxplayer_cmd_treble * * nxplayer_cmd_treble() sets the treble level and range. * ****************************************************************************/ #ifndef CONFIG_AUDIO_EXCLUDE_TONE static int nxplayer_cmd_treble(FAR struct nxplayer_s *pPlayer, char* parg) { uint8_t level_percent; /* If no arg given, then print current bass */ if (parg == NULL || *parg == '\0') { printf("treble: %d\n", pPlayer->treble); } else { /* Get the level and range percentage value from the argument */ level_percent = (uint8_t) atoi(parg); nxplayer_settreble(pPlayer, level_percent); } return OK; } #endif /**************************************************************************** * Name: nxplayer_cmd_balance * * nxplayer_cmd_balance() sets the balance level. * ****************************************************************************/ #ifndef CONFIG_AUDIO_EXCLUDE_VOLUME #ifndef CONFIG_AUDIO_EXCLUDE_BALANCE static int nxplayer_cmd_balance(FAR struct nxplayer_s *pPlayer, char* parg) { uint16_t percent; /* If no arg given, then print current volume */ if (parg == NULL || *parg == '\0') { printf("balance: %d\n", pPlayer->volume / 10); } else { /* Get the percentage value from the argument */ percent = (uint16_t) (atof(parg) * 10.0); nxplayer_setbalance(pPlayer, percent); } return OK; } #endif #endif /**************************************************************************** * Name: nxplayer_cmd_reset * * nxplayer_cmd_reset() performs a HW reset of all the audio devices. * ****************************************************************************/ #ifdef CONFIG_NXPLAYER_INCLUDE_SYSTEM_RESET static int nxplayer_cmd_reset(FAR struct nxplayer_s *pPlayer, char* parg) { nxplayer_systemreset(pPlayer); return OK; } #endif /**************************************************************************** * Name: nxplayer_cmd_mediadir * * nxplayer_cmd_mediadir() displays or changes the media directory * context. * ****************************************************************************/ #ifdef CONFIG_NXPLAYER_INCLUDE_MEDIADIR static int nxplayer_cmd_mediadir(FAR struct nxplayer_s *pPlayer, char* parg) { /* If no arg given, then print current media dir */ if (parg == NULL || *parg == '\0') printf("%s\n", pPlayer->mediadir); else nxplayer_setmediadir(pPlayer, parg); return OK; } #endif /**************************************************************************** * Name: nxplayer_cmd_stop * * nxplayer_cmd_stop() stops playback of currently playing file * context. * ****************************************************************************/ #ifndef CONFIG_AUDIO_EXCLUDE_STOP static int nxplayer_cmd_stop(FAR struct nxplayer_s *pPlayer, char* parg) { /* Stop the playback */ nxplayer_stop(pPlayer); return OK; } #endif /**************************************************************************** * Name: nxplayer_cmd_pause * * nxplayer_cmd_pause() pauses playback of currently playing file * context. * ****************************************************************************/ #ifndef CONFIG_AUDIO_EXCLUDE_PAUSE_RESUME static int nxplayer_cmd_pause(FAR struct nxplayer_s *pPlayer, char* parg) { /* Pause the playback */ nxplayer_pause(pPlayer); return OK; } #endif /**************************************************************************** * Name: nxplayer_cmd_resume * * nxplayer_cmd_resume() resumes playback of currently playing file * context. * ****************************************************************************/ #ifndef CONFIG_AUDIO_EXCLUDE_PAUSE_RESUME static int nxplayer_cmd_resume(FAR struct nxplayer_s *pPlayer, char* parg) { /* Resume the playback */ nxplayer_resume(pPlayer); return OK; } #endif /**************************************************************************** * Name: nxplayer_cmd_device * * nxplayer_cmd_device() sets the preferred audio device for playback * ****************************************************************************/ #ifdef CONFIG_NXPLAYER_INCLUDE_PREFERRED_DEVICE static int nxplayer_cmd_device(FAR struct nxplayer_s *pPlayer, char* parg) { int ret; char path[32]; /* First try to open the file directly */ ret = nxplayer_setdevice(pPlayer, parg); if (ret == -ENOENT) { /* Append the /dev/audio path and try again */ #ifdef CONFIG_AUDIO_CUSTOM_DEV_PATH #ifdef CONFIG_AUDIO_DEV_ROOT snprintf(path, sizeof(path), "/dev/%s", parg); #else snprintf(path, sizeof(path), CONFIG_AUDIO_DEV_PATH "/%s", parg); #endif #else snprintf(path, sizeof(path), "/dev/audio/%s", parg); #endif ret = nxplayer_setdevice(pPlayer, path); } /* Test if the device file exists */ if (ret == -ENOENT) { /* Device doesn't exit. Report error */ printf("Device %s not found\n", parg); return ret; } /* Test if is is an audio device */ if (ret == -ENODEV) { printf("Device %s is not an audio device\n", parg); return ret; } if (ret < 0) { return ret; } /* Device set successfully */ return OK; } #endif /* CONFIG_NXPLAYER_INCLUDE_PREFERRED_DEVICE */ /**************************************************************************** * Name: nxplayer_cmd_quit * * nxplayer_cmd_quit() terminates the application ****************************************************************************/ static int nxplayer_cmd_quit(FAR struct nxplayer_s *pPlayer, char* parg) { /* Stop the playback if any */ #ifndef CONFIG_AUDIO_EXCLUDE_STOP nxplayer_stop(pPlayer); #endif return OK; } /**************************************************************************** * Name: nxplayer_cmd_help * * nxplayer_cmd_help() displays the application's help information on * supported commands and command syntax. ****************************************************************************/ #ifdef CONFIG_NXPLAYER_INCLUDE_HELP static int nxplayer_cmd_help(FAR struct nxplayer_s *pPlayer, char* parg) { int x, len, maxlen = 0; int c; /* Calculate length of longest cmd + arghelp */ for (x = 0; x < g_nxplayer_cmd_count; x++) { len = strlen(g_nxplayer_cmds[x].cmd) + strlen(g_nxplayer_cmds[x].arghelp); if (len > maxlen) maxlen = len; } printf("NxPlayer commands\n================\n"); for (x = 0; x < g_nxplayer_cmd_count; x++) { /* Print the command and it's arguments */ printf(" %s %s", g_nxplayer_cmds[x].cmd, g_nxplayer_cmds[x].arghelp); /* Calculate number of spaces to print before the help text */ len = maxlen - (strlen(g_nxplayer_cmds[x].cmd) + strlen(g_nxplayer_cmds[x].arghelp)); for (c = 0; c < len; c++) printf(" "); printf(" : %s\n", g_nxplayer_cmds[x].help); } return OK; } #endif /**************************************************************************** * Public Functions ****************************************************************************/ /**************************************************************************** * Name: nxplayer * * nxplayer() reads in commands from the console using the readline * system add-in and implemets a command-line based media player that * uses the NuttX audio system to play media files read in from the * file system. Commands are provided for setting volume, base and * other audio features, as well as for pausing and stoping the * playback. * * Input Parameters: * buf - The user allocated buffer to be filled. * buflen - the size of the buffer. * instream - The stream to read characters from * outstream - The stream to each characters to. * * Returned values: * On success, the (positive) number of bytes transferred is returned. * EOF is returned to indicate either an end of file condition or a * failure. * **************************************************************************/ int nxplayer_main(int argc, char *argv[]) { char buffer[64]; int len, x, running; char *cmd, *arg; FAR struct nxplayer_s *pPlayer; printf("NxPlayer version " NXPLAYER_VER "\n"); printf("h for commands, q to exit\n"); printf("\n"); /* Initialize our NxPlayer context */ pPlayer = nxplayer_create(); if (pPlayer == NULL) { printf("Error: Out of RAM\n"); return -ENOMEM; } /* Loop until the user exits */ running = TRUE; while (running) { /* Print a prompt */ printf("nxplayer> "); fflush(stdout); /* Read a line from the terminal */ len = readline(buffer, sizeof(buffer), stdin, stdout); buffer[len] = '\0'; if (len > 0) { if (buffer[len-1] == '\n') buffer[len-1] = '\0'; /* Parse the command from the argument */ cmd = strtok_r(buffer, " \n", &arg); if (cmd == NULL) continue; /* Remove leading spaces from arg */ while (*arg == ' ') arg++; /* Find the command in our cmd array */ for (x = 0; x < g_nxplayer_cmd_count; x++) { if (strcmp(cmd, g_nxplayer_cmds[x].cmd) == 0) { /* Command found. Call it's handler if not NULL */ if (g_nxplayer_cmds[x].pFunc != NULL) g_nxplayer_cmds[x].pFunc(pPlayer, arg); /* Test if it is a quit command */ if (g_nxplayer_cmds[x].pFunc == nxplayer_cmd_quit) running = FALSE; break; } } /* Test for Unknown command */ if (x == g_nxplayer_cmd_count) printf("%s: unknown nxplayer command\n", buffer); } } /* Release the NxPlayer context */ // nxplayer_detach(pPlayer); nxplayer_release(pPlayer); return OK; }