diff options
Diffstat (limited to 'apps')
| -rw-r--r-- | apps/include/nxplayer.h | 152 | ||||
| -rw-r--r-- | apps/system/nxplayer/nxplayer.c | 110 |
2 files changed, 242 insertions, 20 deletions
diff --git a/apps/include/nxplayer.h b/apps/include/nxplayer.h index cd0517dcf..b6d157e7a 100644 --- a/apps/include/nxplayer.h +++ b/apps/include/nxplayer.h @@ -4,6 +4,10 @@ * Copyright (C) 2013 Ken Pettit. All rights reserved. * Author: Ken Pettit <pettitkd@gmail.com> * + * With updates, enhancements, and modifications by: + * + * Author: Gregory Nutt <gnutt@nuttx.org> + * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: @@ -49,6 +53,20 @@ /**************************************************************************** * Public Type Declarations ****************************************************************************/ +/* Fast-forward and rewind by sub-sampling may be supported. If so, then + * this enumeration specifies the sub-sampling: + */ + +enum nxplayer_subsample_e +{ + SUBSAMPLE_1X = 0, /* Normal speed (no direction change) */ + SUBSAMPLE_2X, + SUBSAMPLE_4X, + SUBSAMPLE_8X, + SUBSAMPLE_16X +}; + +/* This structure describes the internal state of the NxPlayer */ struct nxplayer_s { @@ -89,10 +107,6 @@ typedef int (*nxplayer_func)(FAR struct nxplayer_s* pPlayer, char* pargs); * Public Data ****************************************************************************/ -/**************************************************************************** - * Public Data - ****************************************************************************/ - #ifdef __cplusplus #define EXTERN extern "C" extern "C" @@ -123,7 +137,7 @@ extern "C" * * Input Parameters: None * - * Returned values: + * Returned Value: * Pointer to created NxPlayer context or NULL if error. * **************************************************************************/ @@ -139,7 +153,8 @@ FAR struct nxplayer_s *nxplayer_create(void); * Input Parameters: * pPlayer Pointer to the NxPlayer context * - * Returned values: None + * Returned Value: + * None * **************************************************************************/ @@ -153,7 +168,8 @@ void nxplayer_release(FAR struct nxplayer_s *pPlayer); * Input Parameters: * pPlayer Pointer to the NxPlayer context * - * Returned values: None + * Returned Value: + * None * **************************************************************************/ @@ -172,7 +188,7 @@ void nxplayer_reference(FAR struct nxplayer_s *pPlayer); * pPlayer - Pointer to the context to initialize * device - Pointer to pathname of the preferred device * - * Returned values: + * Returned Value: * OK if context initialized successfully, error code otherwise. * **************************************************************************/ @@ -195,7 +211,7 @@ int nxplayer_setdevice(FAR struct nxplayer_s *pPlayer, FAR const char *device); * subfmt - Sub-Format of audio in filename if known, AUDIO_FMT_UNDEF * to let nxplayer_playfile() determine automatically. * - * Returned values: + * Returned Value: * OK if file found, device found, and playback started. * **************************************************************************/ @@ -211,7 +227,7 @@ int nxplayer_playfile(FAR struct nxplayer_s *pPlayer, FAR char *filename, * Input Parameters: * pPlayer - Pointer to the context to initialize * - * Returned values: + * Returned Value: * OK if file found, device found, and playback started. * **************************************************************************/ @@ -228,7 +244,7 @@ int nxplayer_stop(FAR struct nxplayer_s *pPlayer); * Input Parameters: * pPlayer - Pointer to the context to initialize * - * Returned values: + * Returned Value: * OK if file found, device found, and playback started. * **************************************************************************/ @@ -240,12 +256,12 @@ int nxplayer_pause(FAR struct nxplayer_s *pPlayer); /**************************************************************************** * Name: nxplayer_resume * - * Resuems current playback. + * Resumes current playback. * * Input Parameters: * pPlayer - Pointer to the context to initialize * - * Returned values: + * Returned Value: * OK if file found, device found, and playback started. * **************************************************************************/ @@ -255,6 +271,77 @@ int nxplayer_resume(FAR struct nxplayer_s *pPlayer); #endif /**************************************************************************** + * Name: nxplayer_fforward + * + * Selects to fast forward in the audio data stream. The fast forward + * operation can be cancelled by simply selected no sub-sampling with + * the SUBSAMPLE_1X argument returning to normal 1x forward play. + * + * The preferred way to cancel a fast forward operation is via + * nxplayer_cancel_motion() that provides the option to also return to + * paused, non-playing state. + * + * Input Parameters: + * pPlayer - Pointer to the context to initialize + * subsample - Identifies the fast forward rate (in terms of sub-sampling, + * but does not explicitly require sub-sampling) + * + * Returned Value: + * OK if fast forward operation successful. + * + **************************************************************************/ + +#ifndef CONFIG_AUDIO_EXCLUDE_FFORWARD +int nxplayer_fforward(FAR struct nxplayer_s *pPlayer, + enum nxplayer_subsample_e subsample); +#endif + +/**************************************************************************** + * Name: nxplayer_rewind + * + * Selects to rewind in the audio data stream. The rewind operation must + * be cancelled with nxplayer_cancel_motion. + * + * NOTE that cancellation of the rewind operation differs from + * cancellation of the fast forward operation because we must both restore + * the sub-sampling rate to 1x and also return to forward play. + * + * Input Parameters: + * pPlayer - Pointer to the context to initialize + * subsample - Identifies the rewind rate (in terms of sub-sampling, but + * does not explicitly require sub-sampling) + * + * Returned Value: + * OK if rewind operation successfully initiated. + * + **************************************************************************/ + +#ifndef CONFIG_AUDIO_EXCLUDE_REWIND +int nxplayer_rewind(FAR struct nxplayer_s *pPlayer, + enum nxplayer_subsample_e subsample); +#endif + +/**************************************************************************** + * Name: nxplayer_cancel_motion + * + * Cancel a rewind or fast forward operation and return to either the + * paused state or to the normal, forward play state. + * + * Input Parameters: + * pPlayer - Pointer to the context to initialize + * paused - True: return to the paused state, False: return to the 1X + * forward play state. + * + * Returned Value: + * OK if rewind operation successfully cancelled. + * + **************************************************************************/ + +#if !defined(CONFIG_AUDIO_EXCLUDE_FFORWARD) || !defined(CONFIG_AUDIO_EXCLUDE_REWIND) +int nxplayer_cancel_motion(FAR struct nxplayer_s *pPlayer, bool paused); +#endif + +/**************************************************************************** * Name: nxplayer_setvolume * * Sets the playback volume. The volume is represented in 1/10th of a @@ -265,7 +352,7 @@ int nxplayer_resume(FAR struct nxplayer_s *pPlayer); * pPlayer - Pointer to the context to initialize * volume - Volume level to set in 1/10th percent increments * - * Returned values: + * Returned Value: * OK if file found, device found, and playback started. * **************************************************************************/ @@ -285,7 +372,7 @@ int nxplayer_setvolume(FAR struct nxplayer_s *pPlayer, uint16_t volume); * pPlayer - Pointer to the context to initialize * balance - Balance level to set in 1/10th percent increments * - * Returned values: + * Returned Value: * OK if file found, device found, and playback started. * **************************************************************************/ @@ -305,12 +392,37 @@ int nxplayer_setbalance(FAR struct nxplayer_s *pPlayer, uint16_t balance); * pPlayer - Pointer to the context to initialize * mediadir - Pointer to pathname of the media directory * + * Returned Value: + * None * **************************************************************************/ void nxplayer_setmediadir(FAR struct nxplayer_s *pPlayer, FAR char *mediadir); /**************************************************************************** + * Name: nxplayer_setequalization + * + * Sets the level on each band of an equalizer. Each band setting is + * represented in one percent increments, so the range is 0-100. + * + * Input Parameters: + * pPlayer - Pointer to the context to initialize + * equalization - Pointer to array of equalizer settings of size + * CONFIG_AUDIO_EQUALIZER_NBANDS bytes. Each byte + * represents the setting for one band in the range of + * 0-100. + * + * Returned Value: + * OK if equalization was set correctly. + * + **************************************************************************/ + +#ifndef CONFIG_AUDIO_EXCLUDE_EQUALIZER +int nxplayer_setequalization(FAR struct nxplayer_s *pPlayer, + FAR uint8_t *equalization); +#endif + +/**************************************************************************** * Name: nxplayer_setbass * * Sets the playback bass level. The bass is represented in one percent @@ -320,8 +432,8 @@ void nxplayer_setmediadir(FAR struct nxplayer_s *pPlayer, FAR char *mediadir); * pPlayer - Pointer to the context to initialize * bass - Bass level to set in one percent increments * - * Returned values: - * OK if file found, device found, and playback started. + * Returned Value: + * OK if the bass level was set successfully * **************************************************************************/ @@ -339,8 +451,8 @@ int nxplayer_setbass(FAR struct nxplayer_s *pPlayer, uint8_t bass); * pPlayer - Pointer to the context to initialize * treble - Treble level to set in one percent increments * - * Returned values: - * OK if file found, device found, and playback started. + * Returned Value: + * OK if the treble level was set successfully * **************************************************************************/ @@ -357,7 +469,7 @@ int nxplayer_settreble(FAR struct nxplayer_s *pPlayer, uint8_t treble); * Input Parameters: * pPlayer - Pointer to the context to initialize * - * Returned values: + * Returned Value: * OK if file found, device found, and playback started. * **************************************************************************/ diff --git a/apps/system/nxplayer/nxplayer.c b/apps/system/nxplayer/nxplayer.c index c49fcdd5f..bbd9d5cec 100644 --- a/apps/system/nxplayer/nxplayer.c +++ b/apps/system/nxplayer/nxplayer.c @@ -905,6 +905,33 @@ int nxplayer_setvolume(FAR struct nxplayer_s *pPlayer, uint16_t volume) #endif /* CONFIG_AUDIO_EXCLUDE_VOLUME */ /**************************************************************************** + * Name: nxplayer_setequalization + * + * Sets the level on each band of an equalizer. Each band setting is + * represented in one percent increments, so the range is 0-100. + * + * Input Parameters: + * pPlayer - Pointer to the context to initialize + * equalization - Pointer to array of equalizer settings of size + * CONFIG_AUDIO_EQUALIZER_NBANDS bytes. Each byte + * represents the setting for one band in the range of + * 0-100. + * + * Returned Value: + * OK if equalization was set correctly. + * + **************************************************************************/ + +#ifndef CONFIG_AUDIO_EXCLUDE_EQUALIZER +int nxplayer_setequalization(FAR struct nxplayer_s *pPlayer, + FAR uint8_t *equalization) +{ +#warning Missing logic + return -ENOSYS; +} +#endif + +/**************************************************************************** * Name: nxplayer_setbass * * nxplayer_setbass() sets the bass level and range. @@ -1112,6 +1139,89 @@ int nxplayer_resume(FAR struct nxplayer_s *pPlayer) #endif /* CONFIG_AUDIO_EXCLUDE_PAUSE_RESUME */ /**************************************************************************** + * Name: nxplayer_fforward + * + * Selects to fast forward in the audio data stream. The fast forward + * operation can be cancelled by simply selected no sub-sampling with + * the SUBSAMPLE_1X argument returning to normal 1x forward play. + * + * The preferred way to cancel a fast forward operation is via + * nxplayer_cancel_motion() that provides the option to also return to + * paused, non-playing state. + * + * Input Parameters: + * pPlayer - Pointer to the context to initialize + * subsample - Identifies the fast forward rate (in terms of sub-sampling, + * but does not explicitly require sub-sampling) + * + * Returned Value: + * OK if fast forward operation successful. + * + **************************************************************************/ + +#ifndef CONFIG_AUDIO_EXCLUDE_FFORWARD +int nxplayer_fforward(FAR struct nxplayer_s *pPlayer, + enum nxplayer_subsample_e subsample) +{ +#warning Missing logic + return -ENOSYS; +} +#endif + +/**************************************************************************** + * Name: nxplayer_rewind + * + * Selects to rewind in the audio data stream. The rewind operation must + * be cancelled with nxplayer_cancel_motion. + * + * NOTE that cancellation of the rewind operation differs from + * cancellation of the fast forward operation because we must both restore + * the sub-sampling rate to 1x and also return to forward play. + * + * Input Parameters: + * pPlayer - Pointer to the context to initialize + * subsample - Identifies the rewind rate (in terms of sub-sampling, but + * does not explicitly require sub-sampling) + * + * Returned Value: + * OK if rewind operation successfully initiated. + * + **************************************************************************/ + +#ifndef CONFIG_AUDIO_EXCLUDE_REWIND +int nxplayer_rewind(FAR struct nxplayer_s *pPlayer, + enum nxplayer_subsample_e subsample) +{ +#warning Missing logic + return -ENOSYS; +} +#endif + +/**************************************************************************** + * Name: nxplayer_cancel_motion + * + * Cancel a rewind or fast forward operation and return to either the + * paused state or to the normal, forward play state. + * + * Input Parameters: + * pPlayer - Pointer to the context to initialize + * paused - True: return to the paused state, False: return to the 1X + * forward play state. + * + * Returned Value: + * OK if rewind operation successfully cancelled. + * + **************************************************************************/ + +#if !defined(CONFIG_AUDIO_EXCLUDE_FFORWARD) || !defined(CONFIG_AUDIO_EXCLUDE_REWIND) +int nxplayer_cancel_motion(FAR struct nxplayer_s *pPlayer, bool paused) +{ +#warning Missing logic + return -ENOSYS; +} +#endif + +/**************************************************************************** * Name: nxplayer_setdevice * * nxplayer_setdevice() sets the perferred audio device to use with the |