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kernel: overlays: Add PCF85063 and PCF85063A to i2c-rtc kernel: configs: Add RTC_DRV_PCF85063=m kernel: ARM: dts: CM4 audio pins are not connected kernel: media: bcm2835-unicam: Clear clock state when stopping streaming See: https://github.com/raspberrypi/linux/pull/3986 kernel: media: bcm2835-unicam: Correctly handle error states on stream on/off See: https://github.com/raspberrypi/linux/pull/3984 kernel: media: i2c: imx219: Selection compliance fixes See: https://github.com/raspberrypi/linux/pull/3983 firmware: arm_dt: Handle parent interrupt controllers when masking firmware: config: Add cm4 and pi400 config section filters firmware: MMAL/IL/ISP component: Set the ISP boost frequency once on open firmware: sdcard: Remove legacy NOOBS support to support booting from primary partition 4 firmware: arm_loader: Move 2711 RAM to PCIe address 16GB firmware: video_decode: Add parameter to disable timestamp validation firmware: Imx477 camera tuning fixes See: https://www.raspberrypi.org/forums/viewtopic.php?f=43&t=291032#p1770287 See: https://www.raspberrypi.org/forums/viewtopic.php?f=43&t=291032&start=25#p1771066
230 lines
14 KiB
HTML
230 lines
14 KiB
HTML
<html>
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<head>
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<title>video_decode</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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<a href="audio_capture.html">audio_capture</a><br>
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<a href="image_decode.html">image_decode</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_splitter.html">video_splitter</a><br>
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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.video_decode</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="130" bgcolor="red">130</td></tr>
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</table></td>
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<td bgcolor="grey" border="1">video_decode</td> <td cellpadding="0">
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<table border="0" cellborder="1" cellspacing="0">
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<tr><td border="1" port="131" bgcolor="red">131</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 accepts encoded video in a number of
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different formats, and decodes it to raw YUV frames.
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<p>
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Incoming frames will be buffered to protect against file system read
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latency when playing back, and protect against the media stream
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interleaving in the file format. Typically multiple input frames have
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to be provided before any output frames are produced.
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<p>
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The output format may be set to RGB565 using
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<tt>OMX_IndexParamPortDefinition</tt>; in this case proprietary
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communication will not be used, and the image data will be converted
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on the fly.
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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="15">130<td><tt>OMX_IndexParamPortDefinition</tt>
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<td> Query / set the port parameters for the encoded video stream.
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<tr valign="top"><td><tt><a href="prop.html#OMX_IndexParamBrcmDataUnit">OMX_IndexParamBrcmDataUnit</a></tt>
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<td> Sets the type of data delivery for the encoded data
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(<tt>OMX_DataUnitCodedPicture</tt> or <tt>OMX_DataUnitArbitraryStreamSection</tt>).
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By default the component assumes <tt>OMX DataUnitArbitraryStreamSection</tt>,
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but will also issue a <tt>OMX_IndexParamBrcmDataUnit</tt> request when tunnelling
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the input port to find out the value it should use.
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<tr valign="top"><td><tt>OMX_IndexParamNalStreamFormatSupported</tt>
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<td> Query the format of NAL units that are supported by the decoder
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(<tt>OMX_NaluFormatStartCodes</tt> or <tt>OMX_NaluFormatOneNaluPerBuffer</tt>).
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This is parameter is currently only relevant for AVC streams.
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<tr valign="top"><td><tt>OMX_IndexParamNalStreamFormatSelect</tt>
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<td> Sets the format of NAL units that will be presented to the decoder
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(<tt>OMX_NaluFormatStartCodes</tt> or <tt>OMX_NaluFormatOneNaluPerBuffer</tt>).
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By default the decoder will try to guess the type based on the codec configuration
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data it has been given. This is parameter is currently only relevant for AVC streams.
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<tr valign="top"><td><tt><a href="prop.html#OMX_IndexParamBrcmVideoDecodeErrorConcealment">OMX_IndexParamBrcmVideoDecodeErrorConcealment</a></tt>
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<td> Configures how the codec behaves in case of corrupted frames.
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(<tt>bStartWithValidFrame</tt> will instruct the codec not to start emitting
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frames until it has a first non-corrupted frame. This applies both when
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starting decoding a stream and after a flush.
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<tr valign="top"><td><tt><a href="prop.html#OMX_IndexParamCodecConfig">OMX_IndexParamCodecConfig</a></tt>
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<td> Sets codec configuration data to be used. These bytes may also be
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supplied in a correctly flagged buffer.
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<tr valign="top"><td><tt>OMX_IndexParamVideoMpeg4</tt>
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<td> Query / set the Mpeg4 parameters. This component does not yet support
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populating this structure with details of the stream being decoded.
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<tr valign="top"><td><tt>OMX_IndexParamVideoAvc</tt>
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<td> Query / set the AVC parameters. This component does not yet support
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populating this structure with details of the stream being decoded.
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<tr valign="top"><td><tt>OMX_IndexParamVideoWmv</tt>
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<td> Query / set the WMV parameters. This component does not yet support
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populating this structure with details of the stream being decoded.
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<tr valign="top"><td><tt>OMX_IndexParamVideoH263</tt>
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<td> Query / set the H263 parameters. This component does not yet support
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populating this structure with details of the stream being decoded.
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<tr valign="top"><td><tt>OMX_IndexParamVideoMpeg2</tt>
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<td> Query / set the Mpeg2 parameters. This component does not yet support
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populating this structure with details of the stream being decoded.
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<tr valign="top"><td><tt>OMX_IndexParamVideoRv</tt>
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<td> Query / set the Rv parameters. This component does not yet support
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populating this structure with details of the stream being decoded.
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<tr valign="top"><td><tt><a href="prop.html#OMX_IndexParamVideoMvc">OMX_IndexParamVideoMvc</a></tt>
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<td> Query / set the Mvc parameters. This component does not yet support
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populating this structure with details of the stream being decoded.
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<tr valign="top"><td><tt>OMX_IndexParamVideoProfileLevelQuerySupported</tt>
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<td> Allows to client to enumerate the various profile and level supported by
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the port. Only the highest level is reported for each supported profile.
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<tr valign="top"><td><tt><a href="prop.html#OMX_IndexParamBrcmPixelAspectRatio">OMX_IndexParamBrcmPixelAspectRatio</a></tt>
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<td> Query / set the pixel aspect ratio of the source content.
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<tr valign="top"><td rowspan="1">130 131<td><tt>OMX_IndexParamVideoPortFormat</tt>
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<td> Query / set the port format. The input port supports a wide range of
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compressed video format, the output port supports only raw non-encoded
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video.
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<tr valign="top"><td rowspan="12">131<td><tt>OMX_IndexParamPortDefinition</tt>
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<td> Once we have the details of the output format, this will be
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populated. Details are acquired via codec-specific headers, which are
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either exchanged using the <tt>OMX_IndexParamCodecConfig</tt> when tunnelling
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the input port, or after the first frame has been decoded.
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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><a href="prop.html#OMX_IndexConfigSingleStep">OMX_IndexConfigSingleStep</a></tt>
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<td> If <tt>nU32</tt> is non-zero, only forward the next <tt>nU32</tt> frames.
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If <tt>nU32</tt> is zero then cancel any previous single stepping
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requests and resume the default behaviour. This is typically used to
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capture a single frame from a video stream to encode as a still image.
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<tr valign="top"><td><tt><a href="prop.html#OMX_IndexParamBrcmDisableProprietaryTunnels">OMX_IndexParamBrcmDisableProprietaryTunnels</a></tt>
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<td> Tells the component not to use proprietary communication for its
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output port.
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<tr valign="top"><td><tt><a href="prop.html#OMX_IndexParamBrcmPixelAspectRatio">OMX_IndexParamBrcmPixelAspectRatio</a></tt>
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<td> Query the pixel aspect ratio of the decoded video.
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<tr valign="top"><td><tt><a href="prop.html#OMX_IndexConfigCommonInterlace">OMX_IndexConfigCommonInterlace</a></tt>
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<td> Query the type of interlacing in use in the decoded video.
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<tr valign="top"><td><tt><a href="prop.html#OMX_IndexParamBrcmInterpolateMissingTimestamps">OMX_IndexParamBrcmInterpolateMissingTimestamps</a></tt>
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<td> Configures the codec so that it never outputs a frame without a timestamp
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but instead tries to interpolate the value of missing timestamps.
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This feature is enabled by default.
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Disabling this feature means that the codec will only output frames with
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timestamps if the corresponding input buffer also had a timestamp.
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<tr valign="top"><td><tt><a href="prop.html#OMX_IndexParamBrcmSetCodecPerformanceMonitoring">OMX_IndexParamBrcmSetCodecPerformanceMonitoring</a></tt>
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<td> Configures a codec so that it outputs performance statistics to
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the given DECODE_PROGRESS_REPORT_T structure (passed as a pointer).
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This structure can then be read by the client to find out where the codec is
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at in its processing.
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<tr valign="top"><td><tt><a href="prop.html#OMX_IndexConfigBufferStall">OMX_IndexConfigBufferStall</a></tt>
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<td> Set the stall threshold, or query the delay between the last decoded output
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frame and the current time.
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<tr valign="top"><td><tt><a href="prop.html#OMX_IndexConfigRequestCallback">OMX_IndexConfigRequestCallback</a></tt>
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<td> The client can request notification for <tt>OMX_IndexConfigBufferStall</tt>.
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Notification is given when the boolean <tt>bStalled</tt> changes value.
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<tr valign="top"><td><tt><a href="prop.html#OMX_IndexParamNumOutputChannels">OMX_IndexParamNumOutputChannels</a></tt>
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<td> Query for the number of output channels in the decoded stream. This indicates
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whether the stream is 2d (1 channel) or stereoscopic (2 channels).
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<tr valign="top"><td><tt><a href="prop.html#OMX_IndexParamColorSpace">OMX_IndexParamColorSpace</a></tt>
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<td> Retrieve the image colour space of the video produced by this port.
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<tr valign="top"><td rowspan="15"> <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 allocate
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a pool when active.
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<tr valign="top"><td><tt><a href="prop.html#OMX_IndexParamImagePoolSize">OMX_IndexParamImagePoolSize</a></tt>
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<td> Sets the size of the image pool to be allocated by the
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component. Defaults to 1080p.
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<tr valign="top"><td><tt><a href="prop.html#OMX_IndexParamBrcmFlushCallbackId">OMX_IndexParamBrcmFlushCallbackId</a></tt>
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<td> Specifies a user callback for flush notification.
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This parameter allows internal users of RIL components to request a callback
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when a flush has completed on the output port. This is useful in proprietary
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tunnelling mode where there is no other way for the user to know when the
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output port has been flushed.
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The component will perform a callback with the given <tt>nU32</tt> as the
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callback id.
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<tr valign="top"><td><tt><a href="prop.html#OMX_IndexConfigRefreshCodec">OMX_IndexConfigRefreshCodec</a></tt>
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<td> Triggers closing and reopening the codec. This will only happen if the codec
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is currently loaded. To perform this operation, the <tt>bEnabled</tt> value should
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be set to <tt>OMX_TRUE</tt>.
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<tr valign="top"><td><tt><a href="prop.html#OMX_IndexParamComponentName">OMX_IndexParamComponentName</a></tt>
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<td> Sets the component name to be used in internal logging messages.
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<tr valign="top"><td><tt><a href="prop.html#OMX_IndexParamBrcmLazyImagePoolDestroy">OMX_IndexParamBrcmLazyImagePoolDestroy</a></tt>
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<td> The image pool will be deleted lazily, i.e. we will not wait for the images
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to be returned from the pool, but instead rely on the image pool tidying itself
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up automatically when all references are released.
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<tr valign="top"><td><tt><a href="prop.html#OMX_IndexParamBrcmExtraBuffers">OMX_IndexParamBrcmExtraBuffers</a></tt>
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<td> Sets the number of buffers to allocate beyond the number determined by the codec.
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This defaults to 2 (one on the display, one in the video scheduler) but it may
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sometimes be necessary to increase this.
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<tr valign="top"><td><tt><a href="prop.html#OMX_IndexConfigBrcmPoolMemAllocSize">OMX_IndexConfigBrcmPoolMemAllocSize</a></tt>
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<td> Query for the size of the allocated image pool.
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<tr valign="top"><td><tt><a href="prop.html#OMX_IndexParamBrcmAlignHoriz">OMX_IndexParamBrcmAlignHoriz</a></tt>
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<td> Query / set the horizonal alignment of the output buffer to be a given multiple of bytes in width.
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Setting this to anything other than the default of 32 may have a negative impact of performance
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because the input buffer may need to be re-pitched before it is encoded. Supported values
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are 32 or 1 (no padding).
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<tr valign="top"><td><tt><a href="prop.html#OMX_IndexParamBrcmAlignVert">OMX_IndexParamBrcmAlignVert</a></tt>
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<td> Query / set the vertical alignment of the output buffer to be a given multiple of rows in height.
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Setting this to anything other than the default of 16 may have a negative impact of performance
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because the input buffer may need to be re-pitched before it is encoded. Supported values
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are 16 or 1 (no padding).
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<tr valign="top"><td><tt><a href="prop.html#OMX_IndexParamBrcmVideoTimestampFifo">OMX_IndexParamBrcmVideoTimestampFifo</a></tt>
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<td> Query / set the timestamp fifo mode. When enabled, the timestamp fifo mode will change the way
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incoming timestamps are associated with output images. In this mode the incoming timestamps
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get used without re-ordering on output images.
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<tr valign="top"><td><tt><a href="prop.html#OMX_IndexParamBrcmVideoDrmProtectBuffer">OMX_IndexParamBrcmVideoDrmProtectBuffer</a></tt>
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<td> DRM buffer protection.
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Query to request that a memory buffer be allocated for protected video decode, and the fields
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in a shared memory region be filled in to request protection from the hardware. Set to indicate
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that the previous protection request has been processed.
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<tr valign="top"><td><tt><a href="prop.html#OMX_IndexParamBrcmMaxNumCallbacks">OMX_IndexParamBrcmMaxNumCallbacks</a></tt>
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<td> Query / set a limit to the number of frames that can be stored inside the codec.
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<tr valign="top"><td><tt><a href="prop.html#OMX_IndexParamBrcmVideoDecodeConfigVD3">OMX_IndexParamBrcmVideoDecodeConfigVD3</a></tt>
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<td> Codec specific configuration.
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<tr valign="top"><td><tt>OMX_IndexConfigBrcmVideoCheckTimestamps</tt>
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<td> Query /set whether the codec should sanity check the timestamps to ensure they
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always increase.
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</table>
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</table>
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</body>
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</html>
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