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Copy pathv4l2-ctrls-defs.c
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v4l2-ctrls-defs.c
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// SPDX-License-Identifier: GPL-2.0-or-later
/*
* V4L2 controls framework control definitions.
*
* Copyright (C) 2010-2021 Hans Verkuil <[email protected]>
*/
#include <linux/export.h>
#include <media/v4l2-ctrls.h>
/*
* Returns NULL or a character pointer array containing the menu for
* the given control ID. The pointer array ends with a NULL pointer.
* An empty string signifies a menu entry that is invalid. This allows
* drivers to disable certain options if it is not supported.
*/
const char * const *v4l2_ctrl_get_menu(u32 id)
{
static const char * const mpeg_audio_sampling_freq[] = {
"44.1 kHz",
"48 kHz",
"32 kHz",
NULL
};
static const char * const mpeg_audio_encoding[] = {
"MPEG-1/2 Layer I",
"MPEG-1/2 Layer II",
"MPEG-1/2 Layer III",
"MPEG-2/4 AAC",
"AC-3",
NULL
};
static const char * const mpeg_audio_l1_bitrate[] = {
"32 kbps",
"64 kbps",
"96 kbps",
"128 kbps",
"160 kbps",
"192 kbps",
"224 kbps",
"256 kbps",
"288 kbps",
"320 kbps",
"352 kbps",
"384 kbps",
"416 kbps",
"448 kbps",
NULL
};
static const char * const mpeg_audio_l2_bitrate[] = {
"32 kbps",
"48 kbps",
"56 kbps",
"64 kbps",
"80 kbps",
"96 kbps",
"112 kbps",
"128 kbps",
"160 kbps",
"192 kbps",
"224 kbps",
"256 kbps",
"320 kbps",
"384 kbps",
NULL
};
static const char * const mpeg_audio_l3_bitrate[] = {
"32 kbps",
"40 kbps",
"48 kbps",
"56 kbps",
"64 kbps",
"80 kbps",
"96 kbps",
"112 kbps",
"128 kbps",
"160 kbps",
"192 kbps",
"224 kbps",
"256 kbps",
"320 kbps",
NULL
};
static const char * const mpeg_audio_ac3_bitrate[] = {
"32 kbps",
"40 kbps",
"48 kbps",
"56 kbps",
"64 kbps",
"80 kbps",
"96 kbps",
"112 kbps",
"128 kbps",
"160 kbps",
"192 kbps",
"224 kbps",
"256 kbps",
"320 kbps",
"384 kbps",
"448 kbps",
"512 kbps",
"576 kbps",
"640 kbps",
NULL
};
static const char * const mpeg_audio_mode[] = {
"Stereo",
"Joint Stereo",
"Dual",
"Mono",
NULL
};
static const char * const mpeg_audio_mode_extension[] = {
"Bound 4",
"Bound 8",
"Bound 12",
"Bound 16",
NULL
};
static const char * const mpeg_audio_emphasis[] = {
"No Emphasis",
"50/15 us",
"CCITT J17",
NULL
};
static const char * const mpeg_audio_crc[] = {
"No CRC",
"16-bit CRC",
NULL
};
static const char * const mpeg_audio_dec_playback[] = {
"Auto",
"Stereo",
"Left",
"Right",
"Mono",
"Swapped Stereo",
NULL
};
static const char * const mpeg_video_encoding[] = {
"MPEG-1",
"MPEG-2",
"MPEG-4 AVC",
NULL
};
static const char * const mpeg_video_aspect[] = {
"1x1",
"4x3",
"16x9",
"2.21x1",
NULL
};
static const char * const mpeg_video_bitrate_mode[] = {
"Variable Bitrate",
"Constant Bitrate",
"Constant Quality",
NULL
};
static const char * const mpeg_stream_type[] = {
"MPEG-2 Program Stream",
"MPEG-2 Transport Stream",
"MPEG-1 System Stream",
"MPEG-2 DVD-compatible Stream",
"MPEG-1 VCD-compatible Stream",
"MPEG-2 SVCD-compatible Stream",
NULL
};
static const char * const mpeg_stream_vbi_fmt[] = {
"No VBI",
"Private Packet, IVTV Format",
NULL
};
static const char * const camera_power_line_frequency[] = {
"Disabled",
"50 Hz",
"60 Hz",
"Auto",
NULL
};
static const char * const camera_exposure_auto[] = {
"Auto Mode",
"Manual Mode",
"Shutter Priority Mode",
"Aperture Priority Mode",
NULL
};
static const char * const camera_exposure_metering[] = {
"Average",
"Center Weighted",
"Spot",
"Matrix",
NULL
};
static const char * const camera_auto_focus_range[] = {
"Auto",
"Normal",
"Macro",
"Infinity",
NULL
};
static const char * const colorfx[] = {
"None",
"Black & White",
"Sepia",
"Negative",
"Emboss",
"Sketch",
"Sky Blue",
"Grass Green",
"Skin Whiten",
"Vivid",
"Aqua",
"Art Freeze",
"Silhouette",
"Solarization",
"Antique",
"Set Cb/Cr",
NULL
};
static const char * const auto_n_preset_white_balance[] = {
"Manual",
"Auto",
"Incandescent",
"Fluorescent",
"Fluorescent H",
"Horizon",
"Daylight",
"Flash",
"Cloudy",
"Shade",
NULL,
};
static const char * const camera_iso_sensitivity_auto[] = {
"Manual",
"Auto",
NULL
};
static const char * const scene_mode[] = {
"None",
"Backlight",
"Beach/Snow",
"Candle Light",
"Dusk/Dawn",
"Fall Colors",
"Fireworks",
"Landscape",
"Night",
"Party/Indoor",
"Portrait",
"Sports",
"Sunset",
"Text",
NULL
};
static const char * const tune_emphasis[] = {
"None",
"50 Microseconds",
"75 Microseconds",
NULL,
};
static const char * const header_mode[] = {
"Separate Buffer",
"Joined With 1st Frame",
NULL,
};
static const char * const multi_slice[] = {
"Single",
"Max Macroblocks",
"Max Bytes",
NULL,
};
static const char * const entropy_mode[] = {
"CAVLC",
"CABAC",
NULL,
};
static const char * const mpeg_h264_level[] = {
"1",
"1b",
"1.1",
"1.2",
"1.3",
"2",
"2.1",
"2.2",
"3",
"3.1",
"3.2",
"4",
"4.1",
"4.2",
"5",
"5.1",
"5.2",
"6.0",
"6.1",
"6.2",
NULL,
};
static const char * const h264_loop_filter[] = {
"Enabled",
"Disabled",
"Disabled at Slice Boundary",
NULL,
};
static const char * const h264_profile[] = {
"Baseline",
"Constrained Baseline",
"Main",
"Extended",
"High",
"High 10",
"High 422",
"High 444 Predictive",
"High 10 Intra",
"High 422 Intra",
"High 444 Intra",
"CAVLC 444 Intra",
"Scalable Baseline",
"Scalable High",
"Scalable High Intra",
"Stereo High",
"Multiview High",
"Constrained High",
NULL,
};
static const char * const vui_sar_idc[] = {
"Unspecified",
"1:1",
"12:11",
"10:11",
"16:11",
"40:33",
"24:11",
"20:11",
"32:11",
"80:33",
"18:11",
"15:11",
"64:33",
"160:99",
"4:3",
"3:2",
"2:1",
"Extended SAR",
NULL,
};
static const char * const h264_fp_arrangement_type[] = {
"Checkerboard",
"Column",
"Row",
"Side by Side",
"Top Bottom",
"Temporal",
NULL,
};
static const char * const h264_fmo_map_type[] = {
"Interleaved Slices",
"Scattered Slices",
"Foreground with Leftover",
"Box Out",
"Raster Scan",
"Wipe Scan",
"Explicit",
NULL,
};
static const char * const h264_decode_mode[] = {
"Slice-Based",
"Frame-Based",
NULL,
};
static const char * const h264_start_code[] = {
"No Start Code",
"Annex B Start Code",
NULL,
};
static const char * const h264_hierarchical_coding_type[] = {
"Hier Coding B",
"Hier Coding P",
NULL,
};
static const char * const mpeg_mpeg2_level[] = {
"Low",
"Main",
"High 1440",
"High",
NULL,
};
static const char * const mpeg2_profile[] = {
"Simple",
"Main",
"SNR Scalable",
"Spatially Scalable",
"High",
NULL,
};
static const char * const mpeg_mpeg4_level[] = {
"0",
"0b",
"1",
"2",
"3",
"3b",
"4",
"5",
NULL,
};
static const char * const mpeg4_profile[] = {
"Simple",
"Advanced Simple",
"Core",
"Simple Scalable",
"Advanced Coding Efficiency",
NULL,
};
static const char * const vpx_golden_frame_sel[] = {
"Use Previous Frame",
"Use Previous Specific Frame",
NULL,
};
static const char * const vp8_profile[] = {
"0",
"1",
"2",
"3",
NULL,
};
static const char * const vp9_profile[] = {
"0",
"1",
"2",
"3",
NULL,
};
static const char * const vp9_level[] = {
"1",
"1.1",
"2",
"2.1",
"3",
"3.1",
"4",
"4.1",
"5",
"5.1",
"5.2",
"6",
"6.1",
"6.2",
NULL,
};
static const char * const flash_led_mode[] = {
"Off",
"Flash",
"Torch",
NULL,
};
static const char * const flash_strobe_source[] = {
"Software",
"External",
NULL,
};
static const char * const jpeg_chroma_subsampling[] = {
"4:4:4",
"4:2:2",
"4:2:0",
"4:1:1",
"4:1:0",
"Gray",
NULL,
};
static const char * const dv_tx_mode[] = {
"DVI-D",
"HDMI",
NULL,
};
static const char * const dv_rgb_range[] = {
"Automatic",
"RGB Limited Range (16-235)",
"RGB Full Range (0-255)",
NULL,
};
static const char * const dv_it_content_type[] = {
"Graphics",
"Photo",
"Cinema",
"Game",
"No IT Content",
NULL,
};
static const char * const detect_md_mode[] = {
"Disabled",
"Global",
"Threshold Grid",
"Region Grid",
NULL,
};
static const char * const av1_profile[] = {
"Main",
"High",
"Professional",
NULL,
};
static const char * const av1_level[] = {
"2.0",
"2.1",
"2.2",
"2.3",
"3.0",
"3.1",
"3.2",
"3.3",
"4.0",
"4.1",
"4.2",
"4.3",
"5.0",
"5.1",
"5.2",
"5.3",
"6.0",
"6.1",
"6.2",
"6.3",
"7.0",
"7.1",
"7.2",
"7.3",
NULL,
};
static const char * const hevc_profile[] = {
"Main",
"Main Still Picture",
"Main 10",
NULL,
};
static const char * const hevc_level[] = {
"1",
"2",
"2.1",
"3",
"3.1",
"4",
"4.1",
"5",
"5.1",
"5.2",
"6",
"6.1",
"6.2",
NULL,
};
static const char * const hevc_hierarchial_coding_type[] = {
"B",
"P",
NULL,
};
static const char * const hevc_refresh_type[] = {
"None",
"CRA",
"IDR",
NULL,
};
static const char * const hevc_size_of_length_field[] = {
"0",
"1",
"2",
"4",
NULL,
};
static const char * const hevc_tier[] = {
"Main",
"High",
NULL,
};
static const char * const hevc_loop_filter_mode[] = {
"Disabled",
"Enabled",
"Disabled at slice boundary",
"NULL",
};
static const char * const hevc_decode_mode[] = {
"Slice-Based",
"Frame-Based",
NULL,
};
static const char * const hevc_start_code[] = {
"No Start Code",
"Annex B Start Code",
NULL,
};
static const char * const camera_orientation[] = {
"Front",
"Back",
"External",
NULL,
};
static const char * const mpeg_video_frame_skip[] = {
"Disabled",
"Level Limit",
"VBV/CPB Limit",
NULL,
};
static const char * const intra_refresh_period_type[] = {
"Random",
"Cyclic",
NULL,
};
switch (id) {
case V4L2_CID_MPEG_AUDIO_SAMPLING_FREQ:
return mpeg_audio_sampling_freq;
case V4L2_CID_MPEG_AUDIO_ENCODING:
return mpeg_audio_encoding;
case V4L2_CID_MPEG_AUDIO_L1_BITRATE:
return mpeg_audio_l1_bitrate;
case V4L2_CID_MPEG_AUDIO_L2_BITRATE:
return mpeg_audio_l2_bitrate;
case V4L2_CID_MPEG_AUDIO_L3_BITRATE:
return mpeg_audio_l3_bitrate;
case V4L2_CID_MPEG_AUDIO_AC3_BITRATE:
return mpeg_audio_ac3_bitrate;
case V4L2_CID_MPEG_AUDIO_MODE:
return mpeg_audio_mode;
case V4L2_CID_MPEG_AUDIO_MODE_EXTENSION:
return mpeg_audio_mode_extension;
case V4L2_CID_MPEG_AUDIO_EMPHASIS:
return mpeg_audio_emphasis;
case V4L2_CID_MPEG_AUDIO_CRC:
return mpeg_audio_crc;
case V4L2_CID_MPEG_AUDIO_DEC_PLAYBACK:
case V4L2_CID_MPEG_AUDIO_DEC_MULTILINGUAL_PLAYBACK:
return mpeg_audio_dec_playback;
case V4L2_CID_MPEG_VIDEO_ENCODING:
return mpeg_video_encoding;
case V4L2_CID_MPEG_VIDEO_ASPECT:
return mpeg_video_aspect;
case V4L2_CID_MPEG_VIDEO_BITRATE_MODE:
return mpeg_video_bitrate_mode;
case V4L2_CID_MPEG_STREAM_TYPE:
return mpeg_stream_type;
case V4L2_CID_MPEG_STREAM_VBI_FMT:
return mpeg_stream_vbi_fmt;
case V4L2_CID_POWER_LINE_FREQUENCY:
return camera_power_line_frequency;
case V4L2_CID_EXPOSURE_AUTO:
return camera_exposure_auto;
case V4L2_CID_EXPOSURE_METERING:
return camera_exposure_metering;
case V4L2_CID_AUTO_FOCUS_RANGE:
return camera_auto_focus_range;
case V4L2_CID_COLORFX:
return colorfx;
case V4L2_CID_AUTO_N_PRESET_WHITE_BALANCE:
return auto_n_preset_white_balance;
case V4L2_CID_ISO_SENSITIVITY_AUTO:
return camera_iso_sensitivity_auto;
case V4L2_CID_SCENE_MODE:
return scene_mode;
case V4L2_CID_TUNE_PREEMPHASIS:
return tune_emphasis;
case V4L2_CID_TUNE_DEEMPHASIS:
return tune_emphasis;
case V4L2_CID_FLASH_LED_MODE:
return flash_led_mode;
case V4L2_CID_FLASH_STROBE_SOURCE:
return flash_strobe_source;
case V4L2_CID_MPEG_VIDEO_HEADER_MODE:
return header_mode;
case V4L2_CID_MPEG_VIDEO_FRAME_SKIP_MODE:
return mpeg_video_frame_skip;
case V4L2_CID_MPEG_VIDEO_MULTI_SLICE_MODE:
return multi_slice;
case V4L2_CID_MPEG_VIDEO_H264_ENTROPY_MODE:
return entropy_mode;
case V4L2_CID_MPEG_VIDEO_H264_LEVEL:
return mpeg_h264_level;
case V4L2_CID_MPEG_VIDEO_H264_LOOP_FILTER_MODE:
return h264_loop_filter;
case V4L2_CID_MPEG_VIDEO_H264_PROFILE:
return h264_profile;
case V4L2_CID_MPEG_VIDEO_H264_VUI_SAR_IDC:
return vui_sar_idc;
case V4L2_CID_MPEG_VIDEO_H264_SEI_FP_ARRANGEMENT_TYPE:
return h264_fp_arrangement_type;
case V4L2_CID_MPEG_VIDEO_H264_FMO_MAP_TYPE:
return h264_fmo_map_type;
case V4L2_CID_STATELESS_H264_DECODE_MODE:
return h264_decode_mode;
case V4L2_CID_STATELESS_H264_START_CODE:
return h264_start_code;
case V4L2_CID_MPEG_VIDEO_H264_HIERARCHICAL_CODING_TYPE:
return h264_hierarchical_coding_type;
case V4L2_CID_MPEG_VIDEO_MPEG2_LEVEL:
return mpeg_mpeg2_level;
case V4L2_CID_MPEG_VIDEO_MPEG2_PROFILE:
return mpeg2_profile;
case V4L2_CID_MPEG_VIDEO_MPEG4_LEVEL:
return mpeg_mpeg4_level;
case V4L2_CID_MPEG_VIDEO_MPEG4_PROFILE:
return mpeg4_profile;
case V4L2_CID_MPEG_VIDEO_VPX_GOLDEN_FRAME_SEL:
return vpx_golden_frame_sel;
case V4L2_CID_MPEG_VIDEO_VP8_PROFILE:
return vp8_profile;
case V4L2_CID_MPEG_VIDEO_VP9_PROFILE:
return vp9_profile;
case V4L2_CID_MPEG_VIDEO_VP9_LEVEL:
return vp9_level;
case V4L2_CID_JPEG_CHROMA_SUBSAMPLING:
return jpeg_chroma_subsampling;
case V4L2_CID_DV_TX_MODE:
return dv_tx_mode;
case V4L2_CID_DV_TX_RGB_RANGE:
case V4L2_CID_DV_RX_RGB_RANGE:
return dv_rgb_range;
case V4L2_CID_DV_TX_IT_CONTENT_TYPE:
case V4L2_CID_DV_RX_IT_CONTENT_TYPE:
return dv_it_content_type;
case V4L2_CID_DETECT_MD_MODE:
return detect_md_mode;
case V4L2_CID_MPEG_VIDEO_HEVC_PROFILE:
return hevc_profile;
case V4L2_CID_MPEG_VIDEO_HEVC_LEVEL:
return hevc_level;
case V4L2_CID_MPEG_VIDEO_HEVC_HIER_CODING_TYPE:
return hevc_hierarchial_coding_type;
case V4L2_CID_MPEG_VIDEO_HEVC_REFRESH_TYPE:
return hevc_refresh_type;
case V4L2_CID_MPEG_VIDEO_HEVC_SIZE_OF_LENGTH_FIELD:
return hevc_size_of_length_field;
case V4L2_CID_MPEG_VIDEO_HEVC_TIER:
return hevc_tier;
case V4L2_CID_MPEG_VIDEO_HEVC_LOOP_FILTER_MODE:
return hevc_loop_filter_mode;
case V4L2_CID_MPEG_VIDEO_AV1_PROFILE:
return av1_profile;
case V4L2_CID_MPEG_VIDEO_AV1_LEVEL:
return av1_level;
case V4L2_CID_STATELESS_HEVC_DECODE_MODE:
return hevc_decode_mode;
case V4L2_CID_STATELESS_HEVC_START_CODE:
return hevc_start_code;
case V4L2_CID_CAMERA_ORIENTATION:
return camera_orientation;
case V4L2_CID_MPEG_VIDEO_INTRA_REFRESH_PERIOD_TYPE:
return intra_refresh_period_type;
default:
return NULL;
}
}
EXPORT_SYMBOL(v4l2_ctrl_get_menu);
#define __v4l2_qmenu_int_len(arr, len) ({ *(len) = ARRAY_SIZE(arr); (arr); })
/*
* Returns NULL or an s64 type array containing the menu for given
* control ID. The total number of the menu items is returned in @len.
*/
const s64 *v4l2_ctrl_get_int_menu(u32 id, u32 *len)
{
static const s64 qmenu_int_vpx_num_partitions[] = {
1, 2, 4, 8,
};
static const s64 qmenu_int_vpx_num_ref_frames[] = {
1, 2, 3,
};
switch (id) {
case V4L2_CID_MPEG_VIDEO_VPX_NUM_PARTITIONS:
return __v4l2_qmenu_int_len(qmenu_int_vpx_num_partitions, len);
case V4L2_CID_MPEG_VIDEO_VPX_NUM_REF_FRAMES:
return __v4l2_qmenu_int_len(qmenu_int_vpx_num_ref_frames, len);
default:
*len = 0;
return NULL;
}
}
EXPORT_SYMBOL(v4l2_ctrl_get_int_menu);
/* Return the control name. */
const char *v4l2_ctrl_get_name(u32 id)
{
switch (id) {
/* USER controls */
/* Keep the order of the 'case's the same as in v4l2-controls.h! */
case V4L2_CID_USER_CLASS: return "User Controls";
case V4L2_CID_BRIGHTNESS: return "Brightness";
case V4L2_CID_CONTRAST: return "Contrast";
case V4L2_CID_SATURATION: return "Saturation";
case V4L2_CID_HUE: return "Hue";
case V4L2_CID_AUDIO_VOLUME: return "Volume";
case V4L2_CID_AUDIO_BALANCE: return "Balance";
case V4L2_CID_AUDIO_BASS: return "Bass";
case V4L2_CID_AUDIO_TREBLE: return "Treble";
case V4L2_CID_AUDIO_MUTE: return "Mute";
case V4L2_CID_AUDIO_LOUDNESS: return "Loudness";
case V4L2_CID_BLACK_LEVEL: return "Black Level";
case V4L2_CID_AUTO_WHITE_BALANCE: return "White Balance, Automatic";
case V4L2_CID_DO_WHITE_BALANCE: return "Do White Balance";
case V4L2_CID_RED_BALANCE: return "Red Balance";
case V4L2_CID_BLUE_BALANCE: return "Blue Balance";
case V4L2_CID_GAMMA: return "Gamma";
case V4L2_CID_EXPOSURE: return "Exposure";
case V4L2_CID_AUTOGAIN: return "Gain, Automatic";
case V4L2_CID_GAIN: return "Gain";
case V4L2_CID_HFLIP: return "Horizontal Flip";
case V4L2_CID_VFLIP: return "Vertical Flip";
case V4L2_CID_POWER_LINE_FREQUENCY: return "Power Line Frequency";
case V4L2_CID_HUE_AUTO: return "Hue, Automatic";
case V4L2_CID_WHITE_BALANCE_TEMPERATURE: return "White Balance Temperature";
case V4L2_CID_SHARPNESS: return "Sharpness";
case V4L2_CID_BACKLIGHT_COMPENSATION: return "Backlight Compensation";
case V4L2_CID_CHROMA_AGC: return "Chroma AGC";
case V4L2_CID_COLOR_KILLER: return "Color Killer";
case V4L2_CID_COLORFX: return "Color Effects";
case V4L2_CID_AUTOBRIGHTNESS: return "Brightness, Automatic";
case V4L2_CID_BAND_STOP_FILTER: return "Band-Stop Filter";
case V4L2_CID_ROTATE: return "Rotate";
case V4L2_CID_BG_COLOR: return "Background Color";
case V4L2_CID_CHROMA_GAIN: return "Chroma Gain";
case V4L2_CID_ILLUMINATORS_1: return "Illuminator 1";
case V4L2_CID_ILLUMINATORS_2: return "Illuminator 2";
case V4L2_CID_MIN_BUFFERS_FOR_CAPTURE: return "Min Number of Capture Buffers";
case V4L2_CID_MIN_BUFFERS_FOR_OUTPUT: return "Min Number of Output Buffers";
case V4L2_CID_ALPHA_COMPONENT: return "Alpha Component";
case V4L2_CID_COLORFX_CBCR: return "Color Effects, CbCr";
case V4L2_CID_COLORFX_RGB: return "Color Effects, RGB";
/*
* Codec controls
*
* The MPEG controls are applicable to all codec controls
* and the 'MPEG' part of the define is historical.
*
* Keep the order of the 'case's the same as in videodev2.h!
*/
case V4L2_CID_CODEC_CLASS: return "Codec Controls";
case V4L2_CID_MPEG_STREAM_TYPE: return "Stream Type";
case V4L2_CID_MPEG_STREAM_PID_PMT: return "Stream PMT Program ID";
case V4L2_CID_MPEG_STREAM_PID_AUDIO: return "Stream Audio Program ID";
case V4L2_CID_MPEG_STREAM_PID_VIDEO: return "Stream Video Program ID";
case V4L2_CID_MPEG_STREAM_PID_PCR: return "Stream PCR Program ID";
case V4L2_CID_MPEG_STREAM_PES_ID_AUDIO: return "Stream PES Audio ID";
case V4L2_CID_MPEG_STREAM_PES_ID_VIDEO: return "Stream PES Video ID";
case V4L2_CID_MPEG_STREAM_VBI_FMT: return "Stream VBI Format";
case V4L2_CID_MPEG_AUDIO_SAMPLING_FREQ: return "Audio Sampling Frequency";
case V4L2_CID_MPEG_AUDIO_ENCODING: return "Audio Encoding";
case V4L2_CID_MPEG_AUDIO_L1_BITRATE: return "Audio Layer I Bitrate";
case V4L2_CID_MPEG_AUDIO_L2_BITRATE: return "Audio Layer II Bitrate";
case V4L2_CID_MPEG_AUDIO_L3_BITRATE: return "Audio Layer III Bitrate";
case V4L2_CID_MPEG_AUDIO_MODE: return "Audio Stereo Mode";
case V4L2_CID_MPEG_AUDIO_MODE_EXTENSION: return "Audio Stereo Mode Extension";
case V4L2_CID_MPEG_AUDIO_EMPHASIS: return "Audio Emphasis";
case V4L2_CID_MPEG_AUDIO_CRC: return "Audio CRC";
case V4L2_CID_MPEG_AUDIO_MUTE: return "Audio Mute";
case V4L2_CID_MPEG_AUDIO_AAC_BITRATE: return "Audio AAC Bitrate";
case V4L2_CID_MPEG_AUDIO_AC3_BITRATE: return "Audio AC-3 Bitrate";
case V4L2_CID_MPEG_AUDIO_DEC_PLAYBACK: return "Audio Playback";
case V4L2_CID_MPEG_AUDIO_DEC_MULTILINGUAL_PLAYBACK: return "Audio Multilingual Playback";
case V4L2_CID_MPEG_VIDEO_ENCODING: return "Video Encoding";
case V4L2_CID_MPEG_VIDEO_ASPECT: return "Video Aspect";
case V4L2_CID_MPEG_VIDEO_B_FRAMES: return "Video B Frames";
case V4L2_CID_MPEG_VIDEO_GOP_SIZE: return "Video GOP Size";
case V4L2_CID_MPEG_VIDEO_GOP_CLOSURE: return "Video GOP Closure";
case V4L2_CID_MPEG_VIDEO_PULLDOWN: return "Video Pulldown";
case V4L2_CID_MPEG_VIDEO_BITRATE_MODE: return "Video Bitrate Mode";
case V4L2_CID_MPEG_VIDEO_CONSTANT_QUALITY: return "Constant Quality";
case V4L2_CID_MPEG_VIDEO_BITRATE: return "Video Bitrate";
case V4L2_CID_MPEG_VIDEO_BITRATE_PEAK: return "Video Peak Bitrate";
case V4L2_CID_MPEG_VIDEO_TEMPORAL_DECIMATION: return "Video Temporal Decimation";
case V4L2_CID_MPEG_VIDEO_MUTE: return "Video Mute";
case V4L2_CID_MPEG_VIDEO_MUTE_YUV: return "Video Mute YUV";
case V4L2_CID_MPEG_VIDEO_DECODER_SLICE_INTERFACE: return "Decoder Slice Interface";
case V4L2_CID_MPEG_VIDEO_DECODER_MPEG4_DEBLOCK_FILTER: return "MPEG4 Loop Filter Enable";
case V4L2_CID_MPEG_VIDEO_CYCLIC_INTRA_REFRESH_MB: return "Number of Intra Refresh MBs";
case V4L2_CID_MPEG_VIDEO_INTRA_REFRESH_PERIOD_TYPE: return "Intra Refresh Period Type";
case V4L2_CID_MPEG_VIDEO_INTRA_REFRESH_PERIOD: return "Intra Refresh Period";
case V4L2_CID_MPEG_VIDEO_FRAME_RC_ENABLE: return "Frame Level Rate Control Enable";
case V4L2_CID_MPEG_VIDEO_MB_RC_ENABLE: return "H264 MB Level Rate Control";
case V4L2_CID_MPEG_VIDEO_HEADER_MODE: return "Sequence Header Mode";
case V4L2_CID_MPEG_VIDEO_MAX_REF_PIC: return "Max Number of Reference Pics";
case V4L2_CID_MPEG_VIDEO_FRAME_SKIP_MODE: return "Frame Skip Mode";
case V4L2_CID_MPEG_VIDEO_DEC_DISPLAY_DELAY: return "Display Delay";
case V4L2_CID_MPEG_VIDEO_DEC_DISPLAY_DELAY_ENABLE: return "Display Delay Enable";
case V4L2_CID_MPEG_VIDEO_AU_DELIMITER: return "Generate Access Unit Delimiters";
case V4L2_CID_MPEG_VIDEO_H263_I_FRAME_QP: return "H263 I-Frame QP Value";
case V4L2_CID_MPEG_VIDEO_H263_P_FRAME_QP: return "H263 P-Frame QP Value";
case V4L2_CID_MPEG_VIDEO_H263_B_FRAME_QP: return "H263 B-Frame QP Value";
case V4L2_CID_MPEG_VIDEO_H263_MIN_QP: return "H263 Minimum QP Value";
case V4L2_CID_MPEG_VIDEO_H263_MAX_QP: return "H263 Maximum QP Value";
case V4L2_CID_MPEG_VIDEO_H264_I_FRAME_QP: return "H264 I-Frame QP Value";
case V4L2_CID_MPEG_VIDEO_H264_P_FRAME_QP: return "H264 P-Frame QP Value";
case V4L2_CID_MPEG_VIDEO_H264_B_FRAME_QP: return "H264 B-Frame QP Value";
case V4L2_CID_MPEG_VIDEO_H264_MAX_QP: return "H264 Maximum QP Value";
case V4L2_CID_MPEG_VIDEO_H264_MIN_QP: return "H264 Minimum QP Value";
case V4L2_CID_MPEG_VIDEO_H264_8X8_TRANSFORM: return "H264 8x8 Transform Enable";
case V4L2_CID_MPEG_VIDEO_H264_CPB_SIZE: return "H264 CPB Buffer Size";
case V4L2_CID_MPEG_VIDEO_H264_ENTROPY_MODE: return "H264 Entropy Mode";
case V4L2_CID_MPEG_VIDEO_H264_I_PERIOD: return "H264 I-Frame Period";
case V4L2_CID_MPEG_VIDEO_H264_LEVEL: return "H264 Level";
case V4L2_CID_MPEG_VIDEO_H264_LOOP_FILTER_ALPHA: return "H264 Loop Filter Alpha Offset";
case V4L2_CID_MPEG_VIDEO_H264_LOOP_FILTER_BETA: return "H264 Loop Filter Beta Offset";
case V4L2_CID_MPEG_VIDEO_H264_LOOP_FILTER_MODE: return "H264 Loop Filter Mode";
case V4L2_CID_MPEG_VIDEO_H264_PROFILE: return "H264 Profile";
case V4L2_CID_MPEG_VIDEO_H264_VUI_EXT_SAR_HEIGHT: return "Vertical Size of SAR";
case V4L2_CID_MPEG_VIDEO_H264_VUI_EXT_SAR_WIDTH: return "Horizontal Size of SAR";
case V4L2_CID_MPEG_VIDEO_H264_VUI_SAR_ENABLE: return "Aspect Ratio VUI Enable";
case V4L2_CID_MPEG_VIDEO_H264_VUI_SAR_IDC: return "VUI Aspect Ratio IDC";
case V4L2_CID_MPEG_VIDEO_H264_SEI_FRAME_PACKING: return "H264 Enable Frame Packing SEI";
case V4L2_CID_MPEG_VIDEO_H264_SEI_FP_CURRENT_FRAME_0: return "H264 Set Curr. Frame as Frame0";
case V4L2_CID_MPEG_VIDEO_H264_SEI_FP_ARRANGEMENT_TYPE: return "H264 FP Arrangement Type";
case V4L2_CID_MPEG_VIDEO_H264_FMO: return "H264 Flexible MB Ordering";
case V4L2_CID_MPEG_VIDEO_H264_FMO_MAP_TYPE: return "H264 Map Type for FMO";
case V4L2_CID_MPEG_VIDEO_H264_FMO_SLICE_GROUP: return "H264 FMO Number of Slice Groups";
case V4L2_CID_MPEG_VIDEO_H264_FMO_CHANGE_DIRECTION: return "H264 FMO Direction of Change";
case V4L2_CID_MPEG_VIDEO_H264_FMO_CHANGE_RATE: return "H264 FMO Size of 1st Slice Grp";
case V4L2_CID_MPEG_VIDEO_H264_FMO_RUN_LENGTH: return "H264 FMO No. of Consecutive MBs";
case V4L2_CID_MPEG_VIDEO_H264_ASO: return "H264 Arbitrary Slice Ordering";
case V4L2_CID_MPEG_VIDEO_H264_ASO_SLICE_ORDER: return "H264 ASO Slice Order";
case V4L2_CID_MPEG_VIDEO_H264_HIERARCHICAL_CODING: return "Enable H264 Hierarchical Coding";
case V4L2_CID_MPEG_VIDEO_H264_HIERARCHICAL_CODING_TYPE: return "H264 Hierarchical Coding Type";
case V4L2_CID_MPEG_VIDEO_H264_HIERARCHICAL_CODING_LAYER:return "H264 Number of HC Layers";
case V4L2_CID_MPEG_VIDEO_H264_HIERARCHICAL_CODING_LAYER_QP:
return "H264 Set QP Value for HC Layers";
case V4L2_CID_MPEG_VIDEO_H264_CONSTRAINED_INTRA_PREDICTION:
return "H264 Constrained Intra Pred";
case V4L2_CID_MPEG_VIDEO_H264_CHROMA_QP_INDEX_OFFSET: return "H264 Chroma QP Index Offset";
case V4L2_CID_MPEG_VIDEO_H264_I_FRAME_MIN_QP: return "H264 I-Frame Minimum QP Value";
case V4L2_CID_MPEG_VIDEO_H264_I_FRAME_MAX_QP: return "H264 I-Frame Maximum QP Value";
case V4L2_CID_MPEG_VIDEO_H264_P_FRAME_MIN_QP: return "H264 P-Frame Minimum QP Value";
case V4L2_CID_MPEG_VIDEO_H264_P_FRAME_MAX_QP: return "H264 P-Frame Maximum QP Value";
case V4L2_CID_MPEG_VIDEO_H264_B_FRAME_MIN_QP: return "H264 B-Frame Minimum QP Value";
case V4L2_CID_MPEG_VIDEO_H264_B_FRAME_MAX_QP: return "H264 B-Frame Maximum QP Value";
case V4L2_CID_MPEG_VIDEO_H264_HIER_CODING_L0_BR: return "H264 Hierarchical Lay 0 Bitrate";
case V4L2_CID_MPEG_VIDEO_H264_HIER_CODING_L1_BR: return "H264 Hierarchical Lay 1 Bitrate";
case V4L2_CID_MPEG_VIDEO_H264_HIER_CODING_L2_BR: return "H264 Hierarchical Lay 2 Bitrate";
case V4L2_CID_MPEG_VIDEO_H264_HIER_CODING_L3_BR: return "H264 Hierarchical Lay 3 Bitrate";
case V4L2_CID_MPEG_VIDEO_H264_HIER_CODING_L4_BR: return "H264 Hierarchical Lay 4 Bitrate";
case V4L2_CID_MPEG_VIDEO_H264_HIER_CODING_L5_BR: return "H264 Hierarchical Lay 5 Bitrate";
case V4L2_CID_MPEG_VIDEO_H264_HIER_CODING_L6_BR: return "H264 Hierarchical Lay 6 Bitrate";
case V4L2_CID_MPEG_VIDEO_MPEG2_LEVEL: return "MPEG2 Level";
case V4L2_CID_MPEG_VIDEO_MPEG2_PROFILE: return "MPEG2 Profile";
case V4L2_CID_MPEG_VIDEO_MPEG4_I_FRAME_QP: return "MPEG4 I-Frame QP Value";
case V4L2_CID_MPEG_VIDEO_MPEG4_P_FRAME_QP: return "MPEG4 P-Frame QP Value";
case V4L2_CID_MPEG_VIDEO_MPEG4_B_FRAME_QP: return "MPEG4 B-Frame QP Value";
case V4L2_CID_MPEG_VIDEO_MPEG4_MIN_QP: return "MPEG4 Minimum QP Value";
case V4L2_CID_MPEG_VIDEO_MPEG4_MAX_QP: return "MPEG4 Maximum QP Value";
case V4L2_CID_MPEG_VIDEO_MPEG4_LEVEL: return "MPEG4 Level";
case V4L2_CID_MPEG_VIDEO_MPEG4_PROFILE: return "MPEG4 Profile";
case V4L2_CID_MPEG_VIDEO_MPEG4_QPEL: return "Quarter Pixel Search Enable";
case V4L2_CID_MPEG_VIDEO_MULTI_SLICE_MAX_BYTES: return "Maximum Bytes in a Slice";
case V4L2_CID_MPEG_VIDEO_MULTI_SLICE_MAX_MB: return "Number of MBs in a Slice";
case V4L2_CID_MPEG_VIDEO_MULTI_SLICE_MODE: return "Slice Partitioning Method";
case V4L2_CID_MPEG_VIDEO_VBV_SIZE: return "VBV Buffer Size";
case V4L2_CID_MPEG_VIDEO_DEC_PTS: return "Video Decoder PTS";
case V4L2_CID_MPEG_VIDEO_DEC_FRAME: return "Video Decoder Frame Count";
case V4L2_CID_MPEG_VIDEO_DEC_CONCEAL_COLOR: return "Video Decoder Conceal Color";
case V4L2_CID_MPEG_VIDEO_VBV_DELAY: return "Initial Delay for VBV Control";
case V4L2_CID_MPEG_VIDEO_MV_H_SEARCH_RANGE: return "Horizontal MV Search Range";
case V4L2_CID_MPEG_VIDEO_MV_V_SEARCH_RANGE: return "Vertical MV Search Range";
case V4L2_CID_MPEG_VIDEO_REPEAT_SEQ_HEADER: return "Repeat Sequence Header";
case V4L2_CID_MPEG_VIDEO_FORCE_KEY_FRAME: return "Force Key Frame";
case V4L2_CID_MPEG_VIDEO_BASELAYER_PRIORITY_ID: return "Base Layer Priority ID";
case V4L2_CID_MPEG_VIDEO_LTR_COUNT: return "LTR Count";
case V4L2_CID_MPEG_VIDEO_FRAME_LTR_INDEX: return "Frame LTR Index";
case V4L2_CID_MPEG_VIDEO_USE_LTR_FRAMES: return "Use LTR Frames";
case V4L2_CID_MPEG_VIDEO_AVERAGE_QP: return "Average QP Value";
case V4L2_CID_FWHT_I_FRAME_QP: return "FWHT I-Frame QP Value";
case V4L2_CID_FWHT_P_FRAME_QP: return "FWHT P-Frame QP Value";
/* VPX controls */
case V4L2_CID_MPEG_VIDEO_VPX_NUM_PARTITIONS: return "VPX Number of Partitions";
case V4L2_CID_MPEG_VIDEO_VPX_IMD_DISABLE_4X4: return "VPX Intra Mode Decision Disable";
case V4L2_CID_MPEG_VIDEO_VPX_NUM_REF_FRAMES: return "VPX No. of Refs for P Frame";
case V4L2_CID_MPEG_VIDEO_VPX_FILTER_LEVEL: return "VPX Loop Filter Level Range";
case V4L2_CID_MPEG_VIDEO_VPX_FILTER_SHARPNESS: return "VPX Deblocking Effect Control";
case V4L2_CID_MPEG_VIDEO_VPX_GOLDEN_FRAME_REF_PERIOD: return "VPX Golden Frame Refresh Period";
case V4L2_CID_MPEG_VIDEO_VPX_GOLDEN_FRAME_SEL: return "VPX Golden Frame Indicator";
case V4L2_CID_MPEG_VIDEO_VPX_MIN_QP: return "VPX Minimum QP Value";
case V4L2_CID_MPEG_VIDEO_VPX_MAX_QP: return "VPX Maximum QP Value";
case V4L2_CID_MPEG_VIDEO_VPX_I_FRAME_QP: return "VPX I-Frame QP Value";
case V4L2_CID_MPEG_VIDEO_VPX_P_FRAME_QP: return "VPX P-Frame QP Value";
case V4L2_CID_MPEG_VIDEO_VP8_PROFILE: return "VP8 Profile";
case V4L2_CID_MPEG_VIDEO_VP9_PROFILE: return "VP9 Profile";
case V4L2_CID_MPEG_VIDEO_VP9_LEVEL: return "VP9 Level";
/* HEVC controls */
case V4L2_CID_MPEG_VIDEO_HEVC_I_FRAME_QP: return "HEVC I-Frame QP Value";
case V4L2_CID_MPEG_VIDEO_HEVC_P_FRAME_QP: return "HEVC P-Frame QP Value";
case V4L2_CID_MPEG_VIDEO_HEVC_B_FRAME_QP: return "HEVC B-Frame QP Value";
case V4L2_CID_MPEG_VIDEO_HEVC_MIN_QP: return "HEVC Minimum QP Value";
case V4L2_CID_MPEG_VIDEO_HEVC_MAX_QP: return "HEVC Maximum QP Value";
case V4L2_CID_MPEG_VIDEO_HEVC_I_FRAME_MIN_QP: return "HEVC I-Frame Minimum QP Value";
case V4L2_CID_MPEG_VIDEO_HEVC_I_FRAME_MAX_QP: return "HEVC I-Frame Maximum QP Value";