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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.rst | 4 Stream Parser (strparser)
10 The stream parser (strparser) is a utility that parses messages of an
11 application layer protocol running over a data stream. The stream
14 Connection Multiplexor (KCM) uses the Stream Parser to parse messages
46 Called to initialize a stream parser. strp is a struct of type
48 socket associated with the stream parser for use with receive
50 are called by the stream parser (the callbacks are listed below).
56 Temporarily pause a stream parser. Message parsing is suspended
63 Unpause a paused stream parser.
69 strp_stop is called to completely stop stream parser operations.
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| D | tcp-thin.rst | 8 protocols display what we call thin-stream properties. This means
27 for thin streams. In short, if the kernel detects a thin stream,
30 1) If the stream is thin, fast retransmit on the first dupACK.
31 2) If the stream is thin, do not apply exponential backoff.
33 These enhancements are applied only if the stream is detected as
36 fast retransmissions can not be triggered, and the stream is prone
50 "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/userspace-api/media/dvb/ |
| D | audio-set-id.rst | 41 - audio sub-stream id
46 This ioctl selects which sub-stream is to be decoded if a program or
47 system stream is sent to the video device. If no audio stream type is
50 other stream types. If the stream type is set the id just specifies the
51 substream id of the audio stream and only the first 5 bits are
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| D | video_types.rst | 30 about the display format of the current video stream.
38 In case the display format of the video stream and of the display
55 .. _video-stream-source-t:
60 The video stream source is set through the VIDEO_SELECT_SOURCE call
69 VIDEO_SOURCE_MEMORY /* If this source is selected, the stream
75 frontend or the DVR device) as the source of the video stream. If
76 VIDEO_SOURCE_MEMORY is selected the stream comes from the application
190 video_format_t video_format; /* current aspect ratio of stream */
198 selected source for the video stream. It can come either from the
200 ratio (one of 4:3 or 16:9) of the currently played video stream.
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| D | audio-set-streamtype.rst | 41 - stream type
46 This ioctl tells the driver which kind of audio stream to expect. This
47 is useful if the stream offers several audio sub-streams like LPCM and
66 - type is not a valid or supported stream type.
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| /Documentation/devicetree/bindings/iommu/ |
| D | arm,smmu.yaml | 87 value of 1, each IOMMU specifier represents a distinct stream ID emitted
90 SMMUs with stream matching support and complex masters may use a value of
122 stream-match-mask:
125 For SMMUs supporting stream matching and using #iommu-cells = <1>,
126 specifies a mask of bits to ignore when matching stream IDs (e.g. this may
127 be programmed into the SMRn.MASK field of every stream match register
129 Stream ID (e.g. for certain MMU-500 configurations given globally unique
130 input IDs). This property is not valid for SMMUs using stream indexing, or
131 using stream matching with #iommu-cells = <2>, and may be ignored if
177 /* SMMU with stream matching or stream indexing */
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| /Documentation/devicetree/bindings/media/ |
| 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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| 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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| /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/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/userspace-api/media/v4l/ |
| D | buffer.rst | 29 stream. Changes in these flags may take place as a side effect of
55 the stream to be stopped. Any attempt at such a modification while the stream
60 control while the stream is active.
74 when the stream is stopped. As they don't influence the buffer size, no
77 stream is stopped.
83 the video stream with the :c:func:`VIDIOC_STREAMOFF` ioctl if it is running
87 buffers shall then be reallocated and the stream restarted. A typical ioctl
189 this field when ``type`` refers to a capture stream, applications
190 when it refers to an output stream. If the application sets this
191 to 0 for an output stream, then ``bytesused`` will be set to the
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| 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 | pixfmt-compressed.rst | 30 - MPEG multiplexed stream. The actual format is determined by
47 - H264 video elementary stream without start codes.
52 - H264 MVC video elementary stream.
89 - H263 video elementary stream.
128 - MPEG4 video elementary stream.
133 - Xvid video elementary stream.
138 - VC1, SMPTE 421M Annex G compliant stream.
143 - VC1, SMPTE 421M Annex L compliant stream.
215 - Video elementary stream using a codec based on the Fast Walsh Hadamard
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| D | dev-sliced-vbi.rst | 369 If a device can produce an MPEG output stream, it may be capable of
372 as data embedded in the MPEG stream. Users or applications control this
374 :ref:`V4L2_CID_MPEG_STREAM_VBI_FMT <v4l2-mpeg-stream-vbi-fmt>`
378 :ref:`V4L2_CID_MPEG_STREAM_VBI_FMT <v4l2-mpeg-stream-vbi-fmt>`
380 :ref:`V4L2_MPEG_STREAM_VBI_FMT_NONE <v4l2-mpeg-stream-vbi-fmt>`,
381 then the device cannot embed sliced VBI data in the MPEG stream.
384 :ref:`V4L2_CID_MPEG_STREAM_VBI_FMT <v4l2-mpeg-stream-vbi-fmt>`
387 VBI data in the MPEG stream, if an application has negotiated sliced VBI
393 the sliced VBI data will be embedded in MPEG stream types when
394 supported, and silently omitted from MPEG stream types where sliced VBI
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| D | format.rst | 38 assigns a logical stream (video data, VBI data etc.) exclusively to one
42 descriptor, can grab this stream or change device properties
46 descriptor owning the stream can make invalidating changes. Accordingly
59 Generally only one logical stream can be assigned to a file descriptor,
62 earlier versions of V4L2. Switching the logical stream or returning into
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| D | vidioc-g-enc-index.rst | 13 VIDIOC_G_ENC_INDEX - Get meta data about a compressed video stream
35 video stream the same or another application currently reads from the
36 driver, which is useful for random access into the stream without
79 - Meta data about a compressed video stream. Each element of the
96 stream to the beginning of this picture, that is a *PES packet
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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/driver-api/media/ |
| D | csi2.rst | 35 ability to start and stop the stream.
60 not active, and maintain *LP-11 mode* until stream on. Only at stream
71 A transmitter stops sending the stream of images as a result of
73 stream at a frame boundary whereas others stop immediately,
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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/devicetree/bindings/dma/xilinx/ |
| D | xlnx,zynqmp-dpdma.yaml | 12 channels for a video stream, 1 channel for a graphics stream, and 2 channels
13 for an audio stream).
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| /Documentation/admin-guide/media/ |
| 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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| /Documentation/devicetree/bindings/sound/ |
| D | renesas,fsi.yaml | 51 "^fsi(a|b),stream-mode-support$":
53 description: FSI supports 16bit stream mode
82 fsia,stream-mode-support;
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