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| /Documentation/driver-api/soundwire/ |
| D | stream.rst | 2 Audio Stream in SoundWire
5 An audio stream is a logical or virtual connection created between
16 audio stream contains one or more channels of data. All channels within
17 stream must have same sample rate and same sample size.
19 Assume a stream with two channels (Left & Right) is opened using SoundWire
20 interface. Below are some ways a stream can be represented in SoundWire.
22 Stream Sample in memory (System memory, DSP memory or FIFOs) ::
28 Example 1: Stereo Stream with L and R channels is rendered from Master to
41 Example 2: Stereo Stream with L and R channels is captured from Slave to
55 Example 3: Stereo Stream with L and R channels is rendered by Master. Each
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| /Documentation/networking/ |
| D | strparser.txt | 1 Stream Parser (strparser)
6 The stream parser (strparser) is a utility that parses messages of an
7 application layer protocol running over a data stream. The stream
10 Connection Multiplexor (KCM) uses the Stream Parser to parse messages
40 Called to initialize a stream parser. strp is a struct of type
42 socket associated with the stream parser for use with receive
44 are called by the stream parser (the callbacks are listed below).
48 Temporarily pause a stream parser. Message parsing is suspended
53 Unpause a paused stream parser.
57 strp_stop is called to completely stop stream parser operations.
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| D | tcp-thin.txt | 4 protocols display what we call thin-stream properties. This means
23 for thin streams. In short, if the kernel detects a thin stream,
26 1) If the stream is thin, fast retransmit on the first dupACK.
27 2) If the stream is thin, do not apply exponential backoff.
29 These enhancements are applied only if the stream is detected as
32 fast retransmissions can not be triggered, and the stream is prone
45 "Improving latency for interactive, thin-stream applications over
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| /Documentation/driver-api/usb/ |
| D | bulk-streams.rst | 20 Once a buffer has been queued to a stream ring, the device is notified (through
21 an out-of-band mechanism on another endpoint) that data is ready for that stream
22 ID. The device then tells the host which "stream" it wants to start. The host
23 can also initiate a transfer on a stream without the device asking, but the
38 allocate memory so the driver can use up to num_streams stream IDs. They must
39 pass an array of usb_host_endpoints that need to be setup with similar stream
40 IDs. This is to ensure that a UASP driver will be able to use the same stream
46 declares how many stream IDs it can support, and each bulk endpoint on a
47 SuperSpeed device will say how many stream IDs it can handle. Therefore,
48 drivers should be able to deal with being allocated less stream IDs than they
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| /Documentation/devicetree/bindings/iommu/ |
| D | arm,smmu.txt | 50 represents a distinct stream ID emitted by that device
53 SMMUs with stream matching support and complex masters
73 - stream-match-mask : For SMMUs supporting stream matching and using
75 when matching stream IDs (e.g. this may be programmed
76 into the SMRn.MASK field of every stream match register
78 portion of every Stream ID (e.g. for certain MMU-500
80 property is not valid for SMMUs using stream indexing,
81 or using stream matching with #iommu-cells = <2>, and
105 and their corresponding Stream IDs. Each device node
106 linked from this list must have a "#stream-id-cells"
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| D | msm,iommu-v0.txt | 15 - #iommu-cells: The number of cells needed to specify the stream id. This
35 phandle to the IOMMU and the second cell is the stream id.
38 are required to list all the iommus and the stream ids that the
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| /Documentation/media/uapi/dvb/ |
| D | audio-set-id.rst | 47 - audio sub-stream id
53 This ioctl selects which sub-stream is to be decoded if a program or
54 system stream is sent to the video device. If no audio stream type is
57 other stream types. If the stream type is set the id just specifies the
58 substream id of the audio stream and only the first 5 bits are
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| D | video_types.rst | 37 about the display format of the current video stream.
45 In case the display format of the video stream and of the display
62 .. _video-stream-source-t:
67 The video stream source is set through the VIDEO_SELECT_SOURCE call
76 VIDEO_SOURCE_MEMORY /* If this source is selected, the stream
82 frontend or the DVR device) as the source of the video stream. If
83 VIDEO_SOURCE_MEMORY is selected the stream comes from the application
197 video_format_t video_format; /* current aspect ratio of stream */
205 selected source for the video stream. It can come either from the
207 ratio (one of 4:3 or 16:9) of the currently played video stream.
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| D | audio-set-streamtype.rst | 48 - stream type
54 This ioctl tells the driver which kind of audio stream to expect. This
55 is useful if the stream offers several audio sub-streams like LPCM and
77 - type is not a valid or supported stream type.
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| /Documentation/devicetree/bindings/media/ |
| D | cdns,csi2tx.txt | 15 * pixel_if[0-3]_clk: pixel stream output clock, one for each stream
31 1 Stream 0 input
32 2 Stream 1 input
33 3 Stream 2 input
34 4 Stream 3 input
36 The stream input port nodes are optional if they are not
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| D | cdns,csi2rx.txt | 14 * pixel_if[0-3]_clk: pixel stream output clock, one for each stream
31 1 Stream 0 output
32 2 Stream 1 output
33 3 Stream 2 output
34 4 Stream 3 output
36 The stream output port nodes are optional if they are not
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| /Documentation/devicetree/bindings/misc/ |
| D | xlnx,sd-fec.txt | 16 - "s_axis_din_aclk", DIN AXI4-Stream Slave interface clock (optional)
17 - "s_axis_din_words-aclk", DIN_WORDS AXI4-Stream Slave interface clock (optional)
18 - "s_axis_ctrl_aclk", Control input AXI4-Stream Slave interface clock (optional)
19 - "m_axis_dout_aclk", DOUT AXI4-Stream Master interface clock (optional)
20 - "m_axis_dout_words_aclk", DOUT_WORDS AXI4-Stream Master interface clock (optional)
21 - "m_axis_status_aclk", Status output AXI4-Stream Master interface clock (optional)
31 - xlnx,sdfec-din-width : Configures the DIN AXI stream where a value of 1
38 - xlnx,sdfec-dout-width : Configures the DOUT AXI stream where a value of 1
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| /Documentation/devicetree/bindings/sound/ |
| D | renesas,fsi.txt | 14 - fsia,stream-mode-support : FSI supports 16bit stream mode.
18 - fsib,stream-mode-support : same as fsia
29 fsia,stream-mode-support;
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| /Documentation/devicetree/bindings/soc/qcom/ |
| D | qcom,apr.txt | 38 5 - Voice Stream Manager Service.
40 7 - Audio Stream Manager Service.
43 10 - Core voice stream.
45 12 - Ultrasound stream manager.
46 13 - Listen stream manager.
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| /Documentation/sound/soc/ |
| D | dapm.rst | 16 switching decisions based upon any audio stream (capture/playback)
29 can be set at stream time if power is not needed for sidetone, etc.
44 Stream domain
47 Enabled and disabled when stream playback/capture is started and
134 parameters for stream name and kcontrols.
137 Stream Domain Widgets
140 Stream Widgets relate to the stream power domain and only consist of ADCs
144 Stream widgets have the following format:-
147 SND_SOC_DAPM_DAC(name, stream name, reg, shift, invert),
148 SND_SOC_DAPM_AIF_IN(name, stream, slot, reg, shift, invert)
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| /Documentation/media/uapi/v4l/ |
| D | dev-decoder.rst | 10 H.264/HEVC stream, raw VP8/9 stream) and decodes them into raw video frames in
14 Performing software parsing, processing etc. of the stream in the driver in
68 stream resolution in pixels aligned to codec and hardware requirements;
94 end of stream.
98 stream, which clears the list of earlier reference frames (DPBs).
126 of a new stream, or to resume decoding after a seek.
145 stream metadata
153 stream resolution of the visible picture, in pixels, to be used for
176 node [shape = circle, label="End of Stream"] EoS;
185 Decoding -> ResChange [ label = "Stream\nresolution\nchange" ];
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| D | buffer.rst | 35 stream. Changes in these flags may take place as a side effect of
62 the stream to be stopped. Any attempt at such a modification while the stream
67 control while the stream is active.
81 when the stream is stopped. As they don't influence the buffer size, no
84 stream is stopped.
90 the video stream with the :c:func:`VIDIOC_STREAMOFF` ioctl if it is running
94 buffers shall then be reallocated and the stream restarted. A typical ioctl
200 this field when ``type`` refers to a capture stream, applications
201 when it refers to an output stream. If the application sets this
202 to 0 for an output stream, then ``bytesused`` will be set to the
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| D | pixfmt-compressed.rst | 37 - MPEG multiplexed stream. The actual format is determined by
54 - H264 video elementary stream without start codes.
59 - H264 MVC video elementary stream.
92 - H263 video elementary stream.
131 - MPEG4 video elementary stream.
136 - Xvid video elementary stream.
141 - VC1, SMPTE 421M Annex G compliant stream.
146 - VC1, SMPTE 421M Annex L compliant stream.
195 - Video elementary stream using a codec based on the Fast Walsh Hadamard
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| D | dev-sliced-vbi.rst | 384 If a device can produce an MPEG output stream, it may be capable of
387 as data embedded in the MPEG stream. Users or applications control this
389 :ref:`V4L2_CID_MPEG_STREAM_VBI_FMT <v4l2-mpeg-stream-vbi-fmt>`
393 :ref:`V4L2_CID_MPEG_STREAM_VBI_FMT <v4l2-mpeg-stream-vbi-fmt>`
395 :ref:`V4L2_MPEG_STREAM_VBI_FMT_NONE <v4l2-mpeg-stream-vbi-fmt>`,
396 then the device cannot embed sliced VBI data in the MPEG stream.
399 :ref:`V4L2_CID_MPEG_STREAM_VBI_FMT <v4l2-mpeg-stream-vbi-fmt>`
402 VBI data in the MPEG stream, if an application has negotiated sliced VBI
408 the sliced VBI data will be embedded in MPEG stream types when
409 supported, and silently omitted from MPEG stream types where sliced VBI
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| D | format.rst | 45 assigns a logical stream (video data, VBI data etc.) exclusively to one
49 descriptor, can grab this stream or change device properties
53 descriptor owning the stream can make invalidating changes. Accordingly
66 Generally only one logical stream can be assigned to a file descriptor,
69 earlier versions of V4L2. Switching the logical stream or returning into
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| D | vidioc-g-enc-index.rst | 19 VIDIOC_G_ENC_INDEX - Get meta data about a compressed video stream
43 video stream the same or another application currently reads from the
44 driver, which is useful for random access into the stream without
88 - Meta data about a compressed video stream. Each element of the
106 stream to the beginning of this picture, that is a *PES packet
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| /Documentation/media/kapi/ |
| D | csi2.rst | 27 ability to start and stop the stream.
52 not active, and maintain *LP-11 mode* until stream on. Only at stream
63 A transmitter stops sending the stream of images as a result of
65 stream at a frame boundary whereas others stop immediately,
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| /Documentation/sound/designs/ |
| D | procfile.rst | 68 stream. The number after ``pcm`` is the PCM device number from 0, and
124 The general information of this PCM sub-stream.
127 The current status of this PCM sub-stream, elapsed time,
131 The hardware parameters set for this sub-stream.
134 The soft parameters set for this sub-stream.
140 Triggers an XRUN to the running stream when any value is
166 ``card*/stream*``
167 Shows the assignment and the current status of each audio stream
225 sub-stream directory
234 - ``stream*`` files in card directory
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| D | channel-mapping-api.rst | 12 of the current stream.
15 Typically, a stereo PCM stream has a channel map of
17 while a 4.0 surround PCM stream has a channel map of
87 SNDRV_CHMAP_MONO, /* mono stream */
118 When a PCM stream can provide more than one channel map, you can
148 the given stream. The control element returns an integer array
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| /Documentation/media/v4l-drivers/ |
| D | ivtv.rst | 38 this into the captured MPEG stream.
117 Reading from this device gets you the MPEG1/2 program stream.
131 An mpeg2 stream sent to this device will appear on the selected video
146 The raw audio PCM stereo stream from the currently selected
174 Writes a YUV stream to the decoder of the card.
185 device to tune the radio, use /dev/video24 to read the raw pcm stream
186 or /dev/video0 to get an mpeg2 stream with black video.
207 The sliced VBI data embedded in an MPEG stream is reproduced on this
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