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kernel: Revert net: pskb_trim_rcsum() and CHECKSUM_COMPLETE are friends See: https://github.com/raspberrypi/linux/pull/2717 kernel: thermal: add hysteresis support and adjust PoE HAT trip points See: https://github.com/raspberrypi/linux/pull/2700 kernel: Add composite RPi driver for pcm512x DAC HAT cards See: https://github.com/raspberrypi/linux/pull/2702 firmware: jpeg/mjpeg: MJPEG doesn't insert JFIF APP0 header See: https://github.com/raspberrypi/userland/issues/345 firmware: Add IL HVS component firmware: mmal: Acquire zero copy buffers on being passed to the VPU firmware: video_render: Use per pixel alpha on RGBA and BGRA firmware: video_render: Add support for alpha options (MIX and PREMULT)
120 lines
5.8 KiB
HTML
120 lines
5.8 KiB
HTML
<html>
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<head>
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<title>visualisation</title>
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<body>
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<table border="0" cellpadding="10"><tr valign="top"><td>
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<table border="0" cellspacing="0" cellpadding="1"><tr>
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<td bgcolor="#e0c0c0"><a href="index.html">Top</a><br>
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<tr><td bgcolor="#c0e0e0">
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<a href="audio_capture.html">audio_capture</a><br>
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<a href="audio_decode.html">audio_decode</a><br>
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<a href="audio_encode.html">audio_encode</a><br>
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<a href="audio_lowpower.html">audio_lowpower</a><br>
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<a href="audio_mixer.html">audio_mixer</a><br>
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<a href="audio_processor.html">audio_processor</a><br>
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<a href="audio_render.html">audio_render</a><br>
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<a href="audio_splitter.html">audio_splitter</a><br>
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<tr><td bgcolor="#e0c0c0">
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<a href="image_decode.html">image_decode</a><br>
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<a href="image_encode.html">image_encode</a><br>
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<a href="image_fx.html">image_fx</a><br>
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<a href="resize.html">resize</a><br>
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<a href="source.html">source</a><br>
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<a href="transition.html">transition</a><br>
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<tr><td bgcolor="#c0e0e0">
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<a href="clock.html">clock</a><br>
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<a href="null_sink.html">null_sink</a><br>
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<a href="text_scheduler.html">text_scheduler</a><br>
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<a href="visualisation.html">visualisation</a><br>
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<tr><td bgcolor="#e0c0c0">
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<a href="camera.html">camera</a><br>
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<a href="egl_render.html">egl_render</a><br>
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<a href="hvs.html">hvs</a><br>
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<a href="isp.html">isp</a><br>
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<a href="rawcam.html">rawcam</a><br>
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<a href="video_decode.html">video_decode</a><br>
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<a href="video_encode.html">video_encode</a><br>
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<a href="video_render.html">video_render</a><br>
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<a href="video_scheduler.html">video_scheduler</a><br>
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<a href="video_splitter.html">video_splitter</a><br>
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<tr><td bgcolor="#c0e0e0">
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<a href="prop.html">Custom Index</a><br>
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<a href="metadata.html">Metadata</a><br>
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</table><td>
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<h1>OMX.broadcom.visualisation</h1>
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<table cellspacing="0" cellpadding="2"><tr>
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<td cellpadding="0">
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<table border="0" cellborder="1" cellspacing="0">
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<tr><td border="1" port="140" bgcolor="green">140</td></tr>
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<tr><td border="1" port="143" bgcolor="yellow">143</td></tr>
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</table></td>
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<td bgcolor="grey" border="1">visualisation</td> <td cellpadding="0">
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<table border="0" cellborder="1" cellspacing="0">
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<tr><td border="1" port="141" bgcolor="green">141</td></tr>
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<tr><td border="1" port="142" bgcolor="red">142</td></tr>
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</table></td>
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</tr></table><p>
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<p>
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This conformant component passes through raw PCM audio samples from an
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input port to an output port, and can also create output video frames
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using a visualisation plug-in. It accepts a clock input to attach
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correct time stamps to output video frames.
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<p>
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<p>
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<table border="1" cellspacing="0" cellpadding="2"><tr><td>Port<td>Index<td>Notes
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<tr valign="top"><td rowspan="2">140<td><tt>OMX_IndexParamPortDefinition</tt>
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<td> Query / set the incoming audio port for raw PCM
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audio. <tt>nBufferSize</tt> must be a multiple of 32, and have a value
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of at least 256 - it will default to a value of 1024.
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<tt>nBufferAlignment</tt> must be equal to or larger than 32. Setting
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this will also replicate the port definition to the audio output port.
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<tr valign="top"><td><tt>OMX_IndexParamAudioPcm</tt>
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<td> Query / set the PCM properties for the incoming audio. Setting this
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will replicate the settings to the audio output port.
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<tt>nChannels</tt> must be 1, 2, 4, or 8. 5.1 audio can be embedded in 8
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channel audio. <tt>eNumData</tt> must be
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<tt>OMX_NumericalDataSigned</tt>. <tt>eEndian</tt> must be
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<tt>OMX_EndianLittle</tt>. <tt>bInterleaved</tt> must be <tt>OMX_TRUE</tt>.
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<tt>nBitPerSample</tt> must be 16 or 32. <tt>ePCMMode</tt> must be
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<tt>OMX_AUDIO_PCMModeLinear</tt>.
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<tr valign="top"><td rowspan="2">141<td><tt>OMX_IndexParamPortDefinition</tt>
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<td> Query / set the output audio port definition. Setting only allows the
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number, size and alignment of output buffers to be changed.
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<tt>nBufferSize</tt> must be at least 256 and will default to 1024.
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<tt>nBufferAlignment</tt> must be at least 32.
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<tr valign="top"><td><tt>OMX_IndexParamAudioPcm</tt>
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<td> Query the PCM properties.
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<tr valign="top"><td rowspan="1">140 141<td><tt>OMX_IndexParamAudioPortFormat</tt>
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<td> Query / set the audio port format. Both audio ports only support
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PCM format.
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<tr valign="top"><td rowspan="4">142<td><tt>OMX_IndexParamPortDefinition</tt>
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<td> Once the first visualisation frame is produced this can be queried for
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the output video format. The size and number of buffers can be
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increased from the default sizes.
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<tr valign="top"><td><tt><a href="prop.html#OMX_IndexConfigVisualisation">OMX_IndexConfigVisualisation</a></tt>
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<td> Query / set the visualisation plug-in library and properties to
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control the visualisation used.
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<tr valign="top"><td><tt><a href="prop.html#OMX_IndexParamImagePoolDisplayFunction">OMX_IndexParamImagePoolDisplayFunction</a></tt>
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<td> Used to set up proprietary communication with the next component.
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<tr valign="top"><td><tt>OMX_IndexParamVideoPortFormat</tt>
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<td> Query / set the video port format. The video output port currently
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supports only <tt>RGB565</tt> output.
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<tr valign="top"><td rowspan="2">143<td><tt>OMX_IndexParamPortDefinition</tt>
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<td> Supports connecting to a port on a clock component.
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<tr valign="top"><td><tt>OMX_IndexParamOtherPortFormat</tt>
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<td> Query / set the other port format. This clock port only supports the
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time format.
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<tr valign="top"><td rowspan="2"> <td><tt><a href="prop.html#OMX_IndexParamImagePoolExternal">OMX_IndexParamImagePoolExternal</a></tt>
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<td> Query / set the location of an externally allocated image pool to use
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for output frames. Defaults to NULL, causing the component to
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allocate a pool when active. For this case, image_pool2 and
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image_pool3 must be NULL.
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<tr valign="top"><td><tt><a href="prop.html#OMX_IndexParamImagePoolSize">OMX_IndexParamImagePoolSize</a></tt>
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<td> Set the size of the image pool to be allocated by the component.
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</table>
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</table>
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</body>
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</html>
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