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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)
112 lines
5.6 KiB
HTML
112 lines
5.6 KiB
HTML
<html>
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<head>
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<title>audio_render</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.audio_render</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="100" bgcolor="green">100</td></tr>
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<tr><td border="1" port="101" bgcolor="yellow">101</td></tr>
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</table></td>
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<td bgcolor="grey" border="1">audio_render</td> </tr></table><p>
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<p>
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This conformant component accepts raw PCM audio, and outputs this data
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using platform-specific audio output devices. Control of these
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platform-specific devices is outside the scope of IL. By default, when
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connected to a clock component, it will act as a clock reference. The
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time scale of the clock is respected, and when not normal speed no audio
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will be played and no reference times will be advertised to the clock.
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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="10">100<td><tt>OMX_IndexParamPortDefinition</tt>
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<td> Supports setting the port to PCM or DDP data.
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<tr valign="top"><td><tt>OMX_IndexParamAudioPortFormat</tt>
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<td> Supports setting the port format to PCM unencoded audio, or DDP
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encoded data.
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<tr valign="top"><td><tt>OMX_IndexParamAudioPcm</tt>
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<td> <tt>nChannels</tt> must be between 1 and 8.
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<tt>eNumData</tt> must be <tt>OMX_NumericalDataSigned</tt>.
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<tt>eEndian</tt> must be <tt>OMX_EndianLittle</tt> or <tt>OMX_EndianBig</tt>.
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<tt>bInterleaved</tt> must be <tt>OMX_TRUE</tt>.
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<tt>nBitPerSample</tt> must be 16 or 32.
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<tt>nSamplingRate</tt> must be greater than or equal to 8000 but
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less than or equal to 192000.
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<tt>ePCMMode</tt> must be <tt>OMX_AUDIO_PCMModeLinear</tt>.
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<tr valign="top"><td><tt><a href="prop.html#OMX_IndexParamAudioDdp">OMX_IndexParamAudioDdp</a></tt>
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<td> Query / set the DDP format of this port.
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<tt>nSamplingRate</tt> must be 32000, 44100 or 48000.
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<tr valign="top"><td><tt><a href="prop.html#OMX_IndexParamAudioDts">OMX_IndexParamAudioDts</a></tt>
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<td> Query / set the DTS format of this port.
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<tr valign="top"><td><tt>OMX_IndexConfigAudioVolume</tt>
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<td> Query / set the volume control. This currently controls the software
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volume that occurs prior to mixing in the platform audio output.
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<tr valign="top"><td><tt>OMX_IndexConfigAudioMute</tt>
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<td> Query / set the mute status of the audio output.
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<tr valign="top"><td><tt><a href="prop.html#OMX_IndexConfigBrcmAudioDestination">OMX_IndexConfigBrcmAudioDestination</a></tt>
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<td> Query / set the audio platform-specific destination for audio output.
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<tr valign="top"><td><tt><a href="prop.html#OMX_IndexConfigAudioRenderingLatency">OMX_IndexConfigAudioRenderingLatency</a></tt>
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<td> Query the current audio rendering delay in samples.
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<tr valign="top"><td><tt><a href="prop.html#OMX_IndexConfigLatencyTarget">OMX_IndexConfigLatencyTarget</a></tt>
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<td> Query / set the filter values used when tracking audio rendering latency
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by changing the clock speed.
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<tr valign="top"><td rowspan="3">101<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> Supports setting the port format to time format.
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<tr valign="top"><td><tt><a href="prop.html#OMX_IndexConfigPresentationOffset">OMX_IndexConfigPresentationOffset</a></tt>
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<td> Sets custom presentation offset, used to adjust the audio video sync
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offset.
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<tr valign="top"><td rowspan="2"> <td><tt><a href="prop.html#OMX_IndexConfigBrcmClockReferenceSource">OMX_IndexConfigBrcmClockReferenceSource</a></tt>
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<td> Query / set whether (when connected to a clock component) this component
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acts as a clock master (default behaviour) or as a clock slave scheduling
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the presentation of audio packets based on the media time reference.
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<tr valign="top"><td><tt><a href="prop.html#OMX_IndexConfigBrcmGlobalAudioMute">OMX_IndexConfigBrcmGlobalAudioMute</a></tt>
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<td> Query / set the audio platform-specific mute status of the audio output.
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</table>
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</table>
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</body>
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</html>
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