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author | Gregory Nutt <gnutt@nuttx.org> | 2014-07-27 12:26:03 -0600 |
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committer | Gregory Nutt <gnutt@nuttx.org> | 2014-07-27 12:26:03 -0600 |
commit | 7203e1148956421eef1bdc98741775d0069a5e46 (patch) | |
tree | ae9341fab340db15bcb5ed4e306e469d1e8a0dff /apps/system/nxplayer | |
parent | 89c1e914fd32941bc9c53625698ec79830ee083c (diff) | |
download | px4-nuttx-7203e1148956421eef1bdc98741775d0069a5e46.tar.gz px4-nuttx-7203e1148956421eef1bdc98741775d0069a5e46.tar.bz2 px4-nuttx-7203e1148956421eef1bdc98741775d0069a5e46.zip |
First cut implementation of fast forward and rewind controls
Diffstat (limited to 'apps/system/nxplayer')
-rw-r--r-- | apps/system/nxplayer/nxplayer.c | 126 |
1 files changed, 105 insertions, 21 deletions
diff --git a/apps/system/nxplayer/nxplayer.c b/apps/system/nxplayer/nxplayer.c index 444608198..fd4401d0a 100644 --- a/apps/system/nxplayer/nxplayer.c +++ b/apps/system/nxplayer/nxplayer.c @@ -1054,7 +1054,7 @@ int nxplayer_settreble(FAR struct nxplayer_s *pPlayer, uint8_t level) #ifndef CONFIG_AUDIO_EXCLUDE_BALANCE int nxplayer_setbalance(FAR struct nxplayer_s *pPlayer, uint16_t balance) { - struct audio_caps_desc_s cap_desc; + struct audio_caps_desc_s cap_desc; /* Thread sync using the semaphore */ @@ -1072,7 +1072,7 @@ int nxplayer_setbalance(FAR struct nxplayer_s *pPlayer, uint16_t balance) /* Send a CONFIGURE ioctl to the device to set the volume */ #ifdef CONFIG_AUDIO_MULTI_SESSION - cap_desc.session= pPlayer->session; + cap_desc.session = pPlayer->session; #endif cap_desc.caps.ac_len = sizeof(struct audio_caps_s); cap_desc.caps.ac_type = AUDIO_TYPE_FEATURE; @@ -1112,7 +1112,9 @@ int nxplayer_pause(FAR struct nxplayer_s *pPlayer) ret = ioctl(pPlayer->devFd, AUDIOIOC_PAUSE, 0); #endif if (ret == OK) - pPlayer->state = NXPLAYER_STATE_PAUSED; + { + pPlayer->state = NXPLAYER_STATE_PAUSED; + } } return ret; @@ -1129,7 +1131,7 @@ int nxplayer_pause(FAR struct nxplayer_s *pPlayer) #ifndef CONFIG_AUDIO_EXCLUDE_PAUSE_RESUME int nxplayer_resume(FAR struct nxplayer_s *pPlayer) { - int ret = OK; + int ret = OK; if (pPlayer->state == NXPLAYER_STATE_PAUSED) { @@ -1140,7 +1142,9 @@ int nxplayer_resume(FAR struct nxplayer_s *pPlayer) ret = ioctl(pPlayer->devFd, AUDIOIOC_RESUME, 0); #endif if (ret == OK) - pPlayer->state = NXPLAYER_STATE_PLAYING; + { + pPlayer->state = NXPLAYER_STATE_PLAYING; + } } return ret; @@ -1152,7 +1156,8 @@ int nxplayer_resume(FAR struct nxplayer_s *pPlayer) * * 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 AUDIO_SUBSAMPLE_NONE argument returning to normal 1x forward play. + * This function may be called multiple times to change fast forward rate. * * The preferred way to cancel a fast forward operation is via * nxplayer_cancel_motion() that provides the option to also return to @@ -1161,7 +1166,8 @@ int nxplayer_resume(FAR struct nxplayer_s *pPlayer) * 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) + * but does not explicitly require sub-sampling). See + * AUDIO_SUBSAMPLE_* definitions. * * Returned Value: * OK if fast forward operation successful. @@ -1169,11 +1175,35 @@ int nxplayer_resume(FAR struct nxplayer_s *pPlayer) **************************************************************************/ #ifndef CONFIG_AUDIO_EXCLUDE_FFORWARD -int nxplayer_fforward(FAR struct nxplayer_s *pPlayer, - enum audio_subsample_e subsample) +int nxplayer_fforward(FAR struct nxplayer_s *pPlayer, uint8_t subsample) { -#warning Missing logic - return -ENOSYS; + struct audio_caps_desc_s cap_desc; + int ret; + + DEBUGASSERT(pPlayer && subsample >= AUDIO_SUBSAMPLE_NONE && + subsample <= AUDIO_SUBSAMPLE_MAX); + + /* Send a CONFIGURE ioctl to the device to set the forward rate */ + +#ifdef CONFIG_AUDIO_MULTI_SESSION + cap_desc.session = pPlayer->session; +#endif + cap_desc.caps.ac_len = sizeof(struct audio_caps_s); + cap_desc.caps.ac_type = AUDIO_TYPE_PROCESSING; + cap_desc.caps.ac_format.hw = AUDIO_PU_SUBSAMPLE_FORWARD; + cap_desc.caps.ac_controls.b[0] = subsample; + + ret = ioctl(pPlayer->devFd, AUDIOIOC_CONFIGURE, (unsigned long) &cap_desc); + if (ret < 0) + { + int errcode = errno; + DEBUGASSERT(errcode > 0); + + auddbg("ERROR: ioctl AUDIOIOC_CONFIGURE failed: %d\n", errcode); + ret = -errcode; + } + + return ret; } #endif @@ -1181,16 +1211,19 @@ int nxplayer_fforward(FAR struct nxplayer_s *pPlayer, * Name: nxplayer_rewind * * Selects to rewind in the audio data stream. The rewind operation must - * be cancelled with nxplayer_cancel_motion. + * be cancelled with nxplayer_cancel_motion. This function may be called + * multiple times to change rewind rate. * * 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. + * AUDIO_SUBSAMPLE_NONE is not a valid argument to this function. * * 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) + * does not explicitly require sub-sampling). See + * AUDIO_SUBSAMPLE_* definitions. * * Returned Value: * OK if rewind operation successfully initiated. @@ -1198,11 +1231,35 @@ int nxplayer_fforward(FAR struct nxplayer_s *pPlayer, **************************************************************************/ #ifndef CONFIG_AUDIO_EXCLUDE_REWIND -int nxplayer_rewind(FAR struct nxplayer_s *pPlayer, - enum audio_subsample_e subsample) +int nxplayer_rewind(FAR struct nxplayer_s *pPlayer, uint8_t subsample) { -#warning Missing logic - return -ENOSYS; + struct audio_caps_desc_s cap_desc; + int ret; + + DEBUGASSERT(pPlayer && subsample >= AUDIO_SUBSAMPLE_MIN && + subsample <= AUDIO_SUBSAMPLE_MAX); + + /* Send a CONFIGURE ioctl to the device to set the forward rate */ + +#ifdef CONFIG_AUDIO_MULTI_SESSION + cap_desc.session= pPlayer->session; +#endif + cap_desc.caps.ac_len = sizeof(struct audio_caps_s); + cap_desc.caps.ac_type = AUDIO_TYPE_PROCESSING; + cap_desc.caps.ac_format.hw = AUDIO_PU_SUBSAMPLE_REWIND; + cap_desc.caps.ac_controls.b[0] = subsample; + + ret = ioctl(pPlayer->devFd, AUDIOIOC_CONFIGURE, (unsigned long) &cap_desc); + if (ret < 0) + { + int errcode = errno; + DEBUGASSERT(errcode > 0); + + auddbg("ERROR: ioctl AUDIOIOC_CONFIGURE failed: %d\n", errcode); + ret = -errcode; + } + + return ret; } #endif @@ -1225,8 +1282,35 @@ int nxplayer_rewind(FAR struct nxplayer_s *pPlayer, #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; + int ret; + + /* I think this is equivalent to calling nxplayer_fforward with the + * argument AUDIO_SUBSAMPLE_NONE: Forward motion with no sub-sampling. + * + * REVISIT: There is no way at present to cancel sub-sampling and return + * to pause atomically. + */ + + ret = nxplayer_fforward(pPlayer, AUDIO_SUBSAMPLE_NONE); + if (ret < 0) + { + auddbg("ERROR: nxplayer_fforward failed: %d\n", ret); + return ret; + } + +#ifndef CONFIG_AUDIO_EXCLUDE_PAUSE_RESUME + if (paused) + { + ret = nxplayer_pause(pPlayer); + if (ret < 0) + { + auddbg("ERROR: nxplayer_pause failed: %d\n", ret); + return ret; + } + } +#endif + + return OK; } #endif @@ -1259,8 +1343,8 @@ int nxplayer_setdevice(FAR struct nxplayer_s *pPlayer, FAR const char *pDevice) /* Validate it's an Audio device by issuing an AUDIOIOC_GETCAPS ioctl */ - caps.ac_len = sizeof(caps); - caps.ac_type = AUDIO_TYPE_QUERY; + caps.ac_len = sizeof(caps); + caps.ac_type = AUDIO_TYPE_QUERY; caps.ac_subtype = AUDIO_TYPE_QUERY; if (ioctl(tempFd, AUDIOIOC_GETCAPS, (unsigned long) &caps) != caps.ac_len) { |