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/linux/Documentation/userspace-api/media/drivers/
H A Daspeed-video.rst9 video compressions with a wide range of video quality and compression ratio
16 Support 2-pass (high quality) video compression scheme (Patent pending by
17 ASPEED). Provide visually lossless video compression quality or to reduce
32 Enable/Disable ASPEED's High quality mode. This is a private control
33 that can be used to enable high quality for aspeed proprietary mode.
47 Define the quality of ASPEED's High quality mode. This is a private control
48 that can be used to decide compression quality if High quality mode enabled
49 . Higher the value, better the quality and bigger the size.
/linux/net/netrom/
H A Dnr_route.c80 /* re-sort the routes in quality order. */
83 if (nr_node->routes[y].quality > nr_node->routes[x].quality) { in re_sort_routes()
99 int quality, int obs_count) in nr_add_node() argument
121 if (nr_neigh != NULL && nr_neigh->failed != 0 && quality == 0) { in nr_add_node()
139 if (quality == 0 && nr_neigh != NULL && nr_node != NULL) { in nr_add_node()
156 nr_neigh->quality = READ_ONCE(sysctl_netrom_default_path_quality); in nr_add_node()
181 if (quality != 0 && ax25cmp(nr, ax25) == 0 && !nr_neigh->locked) in nr_add_node()
182 nr_neigh->quality = quality; in nr_add_node()
199 nr_node->routes[0].quality = quality; in nr_add_node()
216 if (quality != 0) in nr_add_node()
[all …]
/linux/Documentation/devicetree/bindings/rng/
H A Dtimeriomem_rng.yaml20 quality:
25 Defaults to zero which causes the kernel's default quality to be used
26 instead. Note that the default quality is usually zero which disables
/linux/Documentation/userspace-api/media/v4l/
H A Dext-ctrls-jpeg.rst64 .. _jpeg-quality-control:
67 Determines trade-off between image quality and size.
68 It provides simpler method for applications to control image quality,
77 where larger values correspond to better image quality.
H A Dvidioc-g-parm.rst235 - High quality imaging mode. High quality mode is intended for still
237 quality that the hardware can deliver. It is not defined how the
239 the ingenuity of the driver writer. High quality mode is a
241 high quality mode:
H A Dvidioc-g-jpegcomp.rst39 :ref:`JPEG class controls <jpeg-controls>` for image quality and JPEG
67 - ``quality``
69 :ref:`V4L2_CID_JPEG_COMPRESSION_QUALITY <jpeg-quality-control>`
H A Dext-ctrls-codec.rst578 - Constant quality
591 Constant quality level control. This control is applicable when
594 where 1 indicates lowest quality and 100 indicates highest quality.
596 bitrate to produce requested frame quality.
1274 quality to a range. Valid range: from 0 to 51. If
1280 quality to a range. Valid range: from 0 to 51. If
1286 quality to a range. Valid range: from 0 to 51. If
1292 quality to a range. Valid range: from 0 to 51. If
1298 quality to a range. Valid range: from 0 to 51. If
1304 quality to a range. Valid range: from 0 to 51. If
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/linux/drivers/media/usb/gspca/
H A Djeilinj.c41 #define CAMQUALITY_MIN 0 /* highest cam quality */
42 #define CAMQUALITY_MAX 97 /* lowest cam quality */
53 u8 quality; /* image quality */ member
142 /* adapt camera quality from jpeg quality */ in setcamquality()
312 dev->quality = QUALITY_DEF; in sd_config()
372 jpeg_set_qual(dev->jpeg_hdr, dev->quality); in sd_start()
470 v4l2_ctrl_s_ctrl(sd->jpegqual, jcomp->quality); in sd_set_jcomp()
480 jcomp->quality = v4l2_ctrl_g_ctrl(sd->jpegqual); in sd_get_jcomp()
H A Djpeg.h22 /* quantization table quality 50% */
137 /* set the JPEG quality */
139 int quality) in jpeg_set_qual() argument
143 if (quality <= 0) in jpeg_set_qual()
145 else if (quality < 50) in jpeg_set_qual()
146 sc = 5000 / quality; in jpeg_set_qual()
148 sc = 200 - quality * 2; in jpeg_set_qual()
/linux/drivers/media/platform/nxp/imx-jpeg/
H A Dmxc-jpeg-hw.c127 void mxc_jpeg_enc_set_quality(struct device *dev, void __iomem *reg, u8 quality) in mxc_jpeg_enc_set_quality() argument
129 dev_dbg(dev, "CAST Encoder Quality %d...\n", quality); in mxc_jpeg_enc_set_quality()
131 /* quality factor */ in mxc_jpeg_enc_set_quality()
132 writel(quality, reg + CAST_QUALITY); in mxc_jpeg_enc_set_quality()
/linux/Documentation/driver-api/media/drivers/
H A Dvidtv.rst18 - A fake tuner driver, which will report a bad signal quality if the chosen
22 - A fake demod driver, which will constantly poll the fake signal quality
80 Probability of losing the TS lock if the signal quality is bad.
82 eventually return a status of 0 when the signal quality is not
88 return a status of 0x1f when/if the signal quality improves.
402 …Lock (0x1f) Quality= Good Signal= -34.66dBm C/N= 33.41dB UCB= 0 postBER= 0 preBER= 1.05x10^-3 PE…
403 …Lock (0x1f) Quality= Good Signal= -34.57dBm C/N= 33.46dB UCB= 0 postBER= 0 preBER= 1.05x10^-3 PE…
406 …Lock (0x1f) Quality= Good Signal= -34.42dBm C/N= 33.89dB UCB= 0 postBER= 0 preBER= 2.44x10^-3 PE…
477 report a bad signal quality.
479 A nice addition is to simulate some noise when the signal quality is bad by:
/linux/drivers/media/platform/mediatek/jpeg/
H A Dmtk_jpeg_enc_hw.h73 * struct mtk_jpeg_enc_qlt - JPEG encoder quality data
74 * @quality_param: quality value
75 * @hardware_value: hardware value of quality
/linux/net/bluetooth/
H A Daosp.c85 bt_dev_warn(hdev, "AOSP quality report is not supported"); in aosp_do_open()
99 bt_dev_info(hdev, "AOSP quality report is supported"); in aosp_do_open()
203 bt_dev_dbg(hdev, "quality report enable %d", enable); in aosp_set_quality_report()
205 /* Enable or disable the quality report feature. */ in aosp_set_quality_report()
/linux/include/uapi/linux/
H A Dwireless.h149 * - Add average quality (for user space calibration)
265 #define SIOCGIWSPY 0x8B11 /* get spy info (quality of link) */
368 #define IWEVQUAL 0x8C01 /* Quality part of statistics (scan) */
714 * Quality of the link
717 __u8 qual; /* link quality (%retries, SNR,
748 * Quality range (for spy threshold)
752 struct iw_quality qual; /* Quality of the link */
885 struct iw_quality qual; /* Quality of the link
924 struct iw_quality qual; /* Quality part of statistics */
986 /* Quality of link & SNR stuff */
[all …]
/linux/Documentation/netlink/specs/
H A Ddpll.yaml90 name: clock-quality-level
92 level of quality of a clock device. This mainly applies when
286 name: clock-quality-level
288 enum: clock-quality-level
291 Level of quality of a clock device. This mainly applies when
294 quality levels (e.g. one specified by ITU option 1 and another
/linux/drivers/net/wireless/broadcom/brcm80211/brcmsmac/
H A Dpub.h43 #define BRCMS_RSSI_NO_SIGNAL -91 /* NDIS RSSI link quality cutoffs */
44 #define BRCMS_RSSI_VERY_LOW -80 /* Very low quality cutoffs */
45 #define BRCMS_RSSI_LOW -70 /* Low quality cutoffs */
46 #define BRCMS_RSSI_GOOD -68 /* Good quality cutoffs */
47 #define BRCMS_RSSI_VERY_GOOD -58 /* Very good quality cutoffs */
48 #define BRCMS_RSSI_EXCELLENT -57 /* Excellent quality cutoffs */
/linux/include/linux/
H A Dhw_random.h34 * @quality: Estimation of true entropy in RNG's bitstream
46 unsigned short quality; member
H A Dtimeriomem-rng.h18 unsigned int quality; member
/linux/drivers/char/hw_random/
H A Drockchip-rng.c32 * a tradeoff between speed and quality and has been adjusted to get a quality
113 unsigned short quality; in rk_rng_read()
304 .quality = 900,
312 .quality = 999, /* as determined by actual testing */
360 rk_rng->rng.quality = rk_rng->soc_data->quality;
/linux/include/net/
H A Dnetrom.h57 #define NR_DEFAULT_QUAL 10 /* Default Neighbour Quality - 10 */
95 unsigned char quality; member
104 unsigned char quality; member
/linux/drivers/gpu/drm/sti/
H A DNOTES4 - The High Quality Video Display Processor (HQVDP) gets video frames from a
5 video decoder and does high quality video processing, including scaling.
/linux/drivers/media/pci/zoran/
H A Dvideocodec.h86 * set_data -> sets device-specific data (tables, quality etc.)
87 * get_data -> query device-specific data (tables, quality etc.)
218 __u16 quality; /* quality of the video */ member
/linux/drivers/media/platform/verisilicon/
H A Dhantro_jpeg.h9 int quality; member
/linux/sound/soc/fsl/
H A Dfsl_micfil.c48 enum quality { enum
74 enum quality quality; member
169 switch (micfil->quality) { in micfil_set_quality()
203 ucontrol->value.integer.value[0] = micfil->quality; in micfil_quality_get()
214 micfil->quality = ucontrol->value.integer.value[0]; in micfil_quality_set()
404 SOC_ENUM_EXT("MICFIL Quality Select",
808 switch (micfil->quality) { in fsl_micfil_hw_params()
895 micfil->quality = QUALITY_VLOW0; in fsl_micfil_dai_probe()
/linux/drivers/media/test-drivers/vivid/
H A Dvivid-radio-common.c103 * Calculate the emulated signal quality taking into account the frequency
170 * For both receiver and transmitter recalculate the signal quality in vivid_radio_s_frequency()

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