diff options
| -rw-r--r-- | camera/docs/docs.html | 24 | ||||
| -rw-r--r-- | camera/docs/metadata_properties.xml | 13 |
2 files changed, 31 insertions, 6 deletions
diff --git a/camera/docs/docs.html b/camera/docs/docs.html index 32c42a3..0674494 100644 --- a/camera/docs/docs.html +++ b/camera/docs/docs.html @@ -2491,9 +2491,9 @@ metering sequence when it processes this request.<wbr/></p> <td class="entry_details" colspan="5"> <p>This entry is normally set to IDLE,<wbr/> or is not included at all in the request settings.<wbr/> When included and -set to START,<wbr/> the camera device will trigger the autoexposure +set to START,<wbr/> the camera device will trigger the auto-exposure (AE) precapture metering sequence.<wbr/></p> -<p>The precapture sequence should triggered before starting a +<p>The precapture sequence should be triggered before starting a high-quality still capture for final metering decisions to be made,<wbr/> and for firing pre-capture flash pulses to estimate scene brightness and required final capture flash power,<wbr/> when @@ -2501,6 +2501,14 @@ the flash is enabled.<wbr/></p> <p>Normally,<wbr/> this entry should be set to START for only a single request,<wbr/> and the application should wait until the sequence completes before starting a new one.<wbr/></p> +<p>When a precapture metering sequence is finished,<wbr/> the camera device +may lock the auto-exposure routine internally to be able to accurately expose the +subsequent still capture image (<code><a href="#controls_android.control.captureIntent">android.<wbr/>control.<wbr/>capture<wbr/>Intent</a> == STILL_<wbr/>CAPTURE</code>).<wbr/> +For this case,<wbr/> the AE may not resume normal scan if no subsequent still capture is +submitted.<wbr/> To ensure that the AE routine restarts normal scan,<wbr/> the application should +submit a request with <code><a href="#controls_android.control.aeLock">android.<wbr/>control.<wbr/>ae<wbr/>Lock</a> == true</code>,<wbr/> followed by a request +with <code><a href="#controls_android.control.aeLock">android.<wbr/>control.<wbr/>ae<wbr/>Lock</a> == false</code>,<wbr/> if the application decides not to submit a +still capture request after the precapture sequence completes.<wbr/></p> <p>The exact effect of auto-exposure (AE) precapture trigger depends on the current AE mode and state; see <a href="#dynamic_android.control.aeState">android.<wbr/>control.<wbr/>ae<wbr/>State</a> for AE precapture state transition @@ -5617,9 +5625,9 @@ metering sequence when it processes this request.<wbr/></p> <td class="entry_details" colspan="5"> <p>This entry is normally set to IDLE,<wbr/> or is not included at all in the request settings.<wbr/> When included and -set to START,<wbr/> the camera device will trigger the autoexposure +set to START,<wbr/> the camera device will trigger the auto-exposure (AE) precapture metering sequence.<wbr/></p> -<p>The precapture sequence should triggered before starting a +<p>The precapture sequence should be triggered before starting a high-quality still capture for final metering decisions to be made,<wbr/> and for firing pre-capture flash pulses to estimate scene brightness and required final capture flash power,<wbr/> when @@ -5627,6 +5635,14 @@ the flash is enabled.<wbr/></p> <p>Normally,<wbr/> this entry should be set to START for only a single request,<wbr/> and the application should wait until the sequence completes before starting a new one.<wbr/></p> +<p>When a precapture metering sequence is finished,<wbr/> the camera device +may lock the auto-exposure routine internally to be able to accurately expose the +subsequent still capture image (<code><a href="#controls_android.control.captureIntent">android.<wbr/>control.<wbr/>capture<wbr/>Intent</a> == STILL_<wbr/>CAPTURE</code>).<wbr/> +For this case,<wbr/> the AE may not resume normal scan if no subsequent still capture is +submitted.<wbr/> To ensure that the AE routine restarts normal scan,<wbr/> the application should +submit a request with <code><a href="#controls_android.control.aeLock">android.<wbr/>control.<wbr/>ae<wbr/>Lock</a> == true</code>,<wbr/> followed by a request +with <code><a href="#controls_android.control.aeLock">android.<wbr/>control.<wbr/>ae<wbr/>Lock</a> == false</code>,<wbr/> if the application decides not to submit a +still capture request after the precapture sequence completes.<wbr/></p> <p>The exact effect of auto-exposure (AE) precapture trigger depends on the current AE mode and state; see <a href="#dynamic_android.control.aeState">android.<wbr/>control.<wbr/>ae<wbr/>State</a> for AE precapture state transition diff --git a/camera/docs/metadata_properties.xml b/camera/docs/metadata_properties.xml index 4eb2d1e..d7ce6df 100644 --- a/camera/docs/metadata_properties.xml +++ b/camera/docs/metadata_properties.xml @@ -705,10 +705,10 @@ xsi:schemaLocation="http://schemas.android.com/service/camera/metadata/ metadata metering sequence when it processes this request.</description> <details>This entry is normally set to IDLE, or is not included at all in the request settings. When included and - set to START, the camera device will trigger the autoexposure + set to START, the camera device will trigger the auto-exposure (AE) precapture metering sequence. - The precapture sequence should triggered before starting a + The precapture sequence should be triggered before starting a high-quality still capture for final metering decisions to be made, and for firing pre-capture flash pulses to estimate scene brightness and required final capture flash power, when @@ -718,6 +718,15 @@ xsi:schemaLocation="http://schemas.android.com/service/camera/metadata/ metadata single request, and the application should wait until the sequence completes before starting a new one. + When a precapture metering sequence is finished, the camera device + may lock the auto-exposure routine internally to be able to accurately expose the + subsequent still capture image (`android.control.captureIntent == STILL_CAPTURE`). + For this case, the AE may not resume normal scan if no subsequent still capture is + submitted. To ensure that the AE routine restarts normal scan, the application should + submit a request with `android.control.aeLock == true`, followed by a request + with `android.control.aeLock == false`, if the application decides not to submit a + still capture request after the precapture sequence completes. + The exact effect of auto-exposure (AE) precapture trigger depends on the current AE mode and state; see android.control.aeState for AE precapture state transition |