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Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/DocBook/media/v4l/controls.xml | 969 |
1 files changed, 969 insertions, 0 deletions
diff --git a/Documentation/DocBook/media/v4l/controls.xml b/Documentation/DocBook/media/v4l/controls.xml index e2046754e87..85164016ed2 100644 --- a/Documentation/DocBook/media/v4l/controls.xml +++ b/Documentation/DocBook/media/v4l/controls.xml @@ -329,6 +329,22 @@ minimum value disables backlight compensation.</entry> <constant>V4L2_CID_ILLUMINATORS_2</constant> + 1).</entry> </row> <row> + <entry><constant>V4L2_CID_MIN_BUFFERS_FOR_CAPTURE</constant></entry> + <entry>integer</entry> + <entry>This is a read-only control that can be read by the application +and used as a hint to determine the number of CAPTURE buffers to pass to REQBUFS. +The value is the minimum number of CAPTURE buffers that is necessary for hardware +to work.</entry> + </row> + <row> + <entry><constant>V4L2_CID_MIN_BUFFERS_FOR_OUTPUT</constant></entry> + <entry>integer</entry> + <entry>This is a read-only control that can be read by the application +and used as a hint to determine the number of OUTPUT buffers to pass to REQBUFS. +The value is the minimum number of OUTPUT buffers that is necessary for hardware +to work.</entry> + </row> + <row> <entry><constant>V4L2_CID_PRIVATE_BASE</constant></entry> <entry></entry> <entry>ID of the first custom (driver specific) control. @@ -1417,6 +1433,959 @@ of the video. The supplied 32-bit integer is interpreted as follows (bit </tbody> </entrytbl> </row> + + + <row><entry></entry></row> + <row> + <entry spanname="id"><constant>V4L2_CID_MPEG_VIDEO_DECODER_SLICE_INTERFACE</constant> </entry> + <entry>boolean</entry> + </row> + <row><entry spanname="descr">If enabled the decoder expects to receive a single slice per buffer, otherwise +the decoder expects a single frame in per buffer. Applicable to the decoder, all codecs. +</entry> + </row> + + <row><entry></entry></row> + <row> + <entry spanname="id"><constant>V4L2_CID_MPEG_VIDEO_H264_VUI_SAR_ENABLE</constant> </entry> + <entry>boolean</entry> + </row> + <row><entry spanname="descr">Enable writing sample aspect ratio in the Video Usability Information. +Applicable to the H264 encoder.</entry> + </row> + + <row><entry></entry></row> + <row> + <entry spanname="id"><constant>V4L2_CID_MPEG_VIDEO_H264_VUI_SAR_IDC</constant> </entry> + <entry>enum v4l2_mpeg_video_h264_vui_sar_idc</entry> + </row> + <row><entry spanname="descr">VUI sample aspect ratio indicator for H.264 encoding. The value +is defined in the table E-1 in the standard. Applicable to the H264 encoder.</entry> + </row> + <row> + <entrytbl spanname="descr" cols="2"> + <tbody valign="top"> + + <row> + <entry><constant>V4L2_MPEG_VIDEO_H264_VUI_SAR_IDC_UNSPECIFIED</constant> </entry> + <entry>Unspecified</entry> + </row> + <row> + <entry><constant>V4L2_MPEG_VIDEO_H264_VUI_SAR_IDC_1x1</constant> </entry> + <entry>1x1</entry> + </row> + <row> + <entry><constant>V4L2_MPEG_VIDEO_H264_VUI_SAR_IDC_12x11</constant> </entry> + <entry>12x11</entry> + </row> + <row> + <entry><constant>V4L2_MPEG_VIDEO_H264_VUI_SAR_IDC_10x11</constant> </entry> + <entry>10x11</entry> + </row> + <row> + <entry><constant>V4L2_MPEG_VIDEO_H264_VUI_SAR_IDC_16x11</constant> </entry> + <entry>16x11</entry> + </row> + <row> + <entry><constant>V4L2_MPEG_VIDEO_H264_VUI_SAR_IDC_40x33</constant> </entry> + <entry>40x33</entry> + </row> + <row> + <entry><constant>V4L2_MPEG_VIDEO_H264_VUI_SAR_IDC_24x11</constant> </entry> + <entry>24x11</entry> + </row> + <row> + <entry><constant>V4L2_MPEG_VIDEO_H264_VUI_SAR_IDC_20x11</constant> </entry> + <entry>20x11</entry> + </row> + <row> + <entry><constant>V4L2_MPEG_VIDEO_H264_VUI_SAR_IDC_32x11</constant> </entry> + <entry>32x11</entry> + </row> + <row> + <entry><constant>V4L2_MPEG_VIDEO_H264_VUI_SAR_IDC_80x33</constant> </entry> + <entry>80x33</entry> + </row> + <row> + <entry><constant>V4L2_MPEG_VIDEO_H264_VUI_SAR_IDC_18x11</constant> </entry> + <entry>18x11</entry> + </row> + <row> + <entry><constant>V4L2_MPEG_VIDEO_H264_VUI_SAR_IDC_15x11</constant> </entry> + <entry>15x11</entry> + </row> + <row> + <entry><constant>V4L2_MPEG_VIDEO_H264_VUI_SAR_IDC_64x33</constant> </entry> + <entry>64x33</entry> + </row> + <row> + <entry><constant>V4L2_MPEG_VIDEO_H264_VUI_SAR_IDC_160x99</constant> </entry> + <entry>160x99</entry> + </row> + <row> + <entry><constant>V4L2_MPEG_VIDEO_H264_VUI_SAR_IDC_4x3</constant> </entry> + <entry>4x3</entry> + </row> + <row> + <entry><constant>V4L2_MPEG_VIDEO_H264_VUI_SAR_IDC_3x2</constant> </entry> + <entry>3x2</entry> + </row> + <row> + <entry><constant>V4L2_MPEG_VIDEO_H264_VUI_SAR_IDC_2x1</constant> </entry> + <entry>2x1</entry> + </row> + <row> + <entry><constant>V4L2_MPEG_VIDEO_H264_VUI_SAR_IDC_EXTENDED</constant> </entry> + <entry>Extended SAR</entry> + </row> + </tbody> + </entrytbl> + </row> + + <row><entry></entry></row> + <row> + <entry spanname="id"><constant>V4L2_CID_MPEG_VIDEO_H264_VUI_EXT_SAR_WIDTH</constant> </entry> + <entry>integer</entry> + </row> + <row><entry spanname="descr">Extended sample aspect ratio width for H.264 VUI encoding. +Applicable to the H264 encoder.</entry> + </row> + + <row><entry></entry></row> + <row> + <entry spanname="id"><constant>V4L2_CID_MPEG_VIDEO_H264_VUI_EXT_SAR_HEIGHT</constant> </entry> + <entry>integer</entry> + </row> + <row><entry spanname="descr">Extended sample aspect ratio height for H.264 VUI encoding. +Applicable to the H264 encoder.</entry> + </row> + + <row><entry></entry></row> + <row> + <entry spanname="id"><constant>V4L2_CID_MPEG_VIDEO_H264_LEVEL</constant> </entry> + <entry>enum v4l2_mpeg_video_h264_level</entry> + </row> + <row><entry spanname="descr">The level information for the H264 video elementary stream. +Applicable to the H264 encoder. +Possible values are:</entry> + </row> + <row> + <entrytbl spanname="descr" cols="2"> + <tbody valign="top"> + <row> + <entry><constant>V4L2_MPEG_VIDEO_H264_LEVEL_1_0</constant> </entry> + <entry>Level 1.0</entry> + </row> + <row> + <entry><constant>V4L2_MPEG_VIDEO_H264_LEVEL_1B</constant> </entry> + <entry>Level 1B</entry> + </row> + <row> + <entry><constant>V4L2_MPEG_VIDEO_H264_LEVEL_1_1</constant> </entry> + <entry>Level 1.1</entry> + </row> + <row> + <entry><constant>V4L2_MPEG_VIDEO_H264_LEVEL_1_2</constant> </entry> + <entry>Level 1.2</entry> + </row> + <row> + <entry><constant>V4L2_MPEG_VIDEO_H264_LEVEL_1_3</constant> </entry> + <entry>Level 1.3</entry> + </row> + <row> + <entry><constant>V4L2_MPEG_VIDEO_H264_LEVEL_2_0</constant> </entry> + <entry>Level 2.0</entry> + </row> + <row> + <entry><constant>V4L2_MPEG_VIDEO_H264_LEVEL_2_1</constant> </entry> + <entry>Level 2.1</entry> + </row> + <row> + <entry><constant>V4L2_MPEG_VIDEO_H264_LEVEL_2_2</constant> </entry> + <entry>Level 2.2</entry> + </row> + <row> + <entry><constant>V4L2_MPEG_VIDEO_H264_LEVEL_3_0</constant> </entry> + <entry>Level 3.0</entry> + </row> + <row> + <entry><constant>V4L2_MPEG_VIDEO_H264_LEVEL_3_1</constant> </entry> + <entry>Level 3.1</entry> + </row> + <row> + <entry><constant>V4L2_MPEG_VIDEO_H264_LEVEL_3_2</constant> </entry> + <entry>Level 3.2</entry> + </row> + <row> + <entry><constant>V4L2_MPEG_VIDEO_H264_LEVEL_4_0</constant> </entry> + <entry>Level 4.0</entry> + </row> + <row> + <entry><constant>V4L2_MPEG_VIDEO_H264_LEVEL_4_1</constant> </entry> + <entry>Level 4.1</entry> + </row> + <row> + <entry><constant>V4L2_MPEG_VIDEO_H264_LEVEL_4_2</constant> </entry> + <entry>Level 4.2</entry> + </row> + <row> + <entry><constant>V4L2_MPEG_VIDEO_H264_LEVEL_5_0</constant> </entry> + <entry>Level 5.0</entry> + </row> + <row> + <entry><constant>V4L2_MPEG_VIDEO_H264_LEVEL_5_1</constant> </entry> + <entry>Level 5.1</entry> + </row> + </tbody> + </entrytbl> + </row> + + <row><entry></entry></row> + <row> + <entry spanname="id"><constant>V4L2_CID_MPEG_VIDEO_MPEG4_LEVEL</constant> </entry> + <entry>enum v4l2_mpeg_video_mpeg4_level</entry> + </row> + <row><entry spanname="descr">The level information for the MPEG4 elementary stream. +Applicable to the MPEG4 encoder. +Possible values are:</entry> + </row> + <row> + <entrytbl spanname="descr" cols="2"> + <tbody valign="top"> + <row> + <entry><constant>V4L2_MPEG_VIDEO_LEVEL_0</constant> </entry> + <entry>Level 0</entry> + </row> + <row> + <entry><constant>V4L2_MPEG_VIDEO_LEVEL_0B</constant> </entry> + <entry>Level 0b</entry> + </row> + <row> + <entry><constant>V4L2_MPEG_VIDEO_LEVEL_1</constant> </entry> + <entry>Level 1</entry> + </row> + <row> + <entry><constant>V4L2_MPEG_VIDEO_LEVEL_2</constant> </entry> + <entry>Level 2</entry> + </row> + <row> + <entry><constant>V4L2_MPEG_VIDEO_LEVEL_3</constant> </entry> + <entry>Level 3</entry> + </row> + <row> + <entry><constant>V4L2_MPEG_VIDEO_LEVEL_3B</constant> </entry> + <entry>Level 3b</entry> + </row> + <row> + <entry><constant>V4L2_MPEG_VIDEO_LEVEL_4</constant> </entry> + <entry>Level 4</entry> + </row> + <row> + <entry><constant>V4L2_MPEG_VIDEO_LEVEL_5</constant> </entry> + <entry>Level 5</entry> + </row> + </tbody> + </entrytbl> + </row> + + <row><entry></entry></row> + <row> + <entry spanname="id"><constant>V4L2_CID_MPEG_VIDEO_H264_PROFILE</constant> </entry> + <entry>enum v4l2_mpeg_h264_profile</entry> + </row> + <row><entry spanname="descr">The profile information for H264. +Applicable to the H264 encoder. +Possible values are:</entry> + </row> + <row> + <entrytbl spanname="descr" cols="2"> + <tbody valign="top"> + <row> + <entry><constant>V4L2_MPEG_VIDEO_H264_PROFILE_BASELINE</constant> </entry> + <entry>Baseline profile</entry> + </row> + <row> + <entry><constant>V4L2_MPEG_VIDEO_H264_PROFILE_CONSTRAINED_BASELINE</constant> </entry> + <entry>Constrained Baseline profile</entry> + </row> + <row> + <entry><constant>V4L2_MPEG_VIDEO_H264_PROFILE_MAIN</constant> </entry> + <entry>Main profile</entry> + </row> + <row> + <entry><constant>V4L2_MPEG_VIDEO_H264_PROFILE_EXTENDED</constant> </entry> + <entry>Extended profile</entry> + </row> + <row> + <entry><constant>V4L2_MPEG_VIDEO_H264_PROFILE_HIGH</constant> </entry> + <entry>High profile</entry> + </row> + <row> + <entry><constant>V4L2_MPEG_VIDEO_H264_PROFILE_HIGH_10</constant> </entry> + <entry>High 10 profile</entry> + </row> + <row> + <entry><constant>V4L2_MPEG_VIDEO_H264_PROFILE_HIGH_422</constant> </entry> + <entry>High 422 profile</entry> + </row> + <row> + <entry><constant>V4L2_MPEG_VIDEO_H264_PROFILE_HIGH_444_PREDICTIVE</constant> </entry> + <entry>High 444 Predictive profile</entry> + </row> + <row> + <entry><constant>V4L2_MPEG_VIDEO_H264_PROFILE_HIGH_10_INTRA</constant> </entry> + <entry>High 10 Intra profile</entry> + </row> + <row> + <entry><constant>V4L2_MPEG_VIDEO_H264_PROFILE_HIGH_422_INTRA</constant> </entry> + <entry>High 422 Intra profile</entry> + </row> + <row> + <entry><constant>V4L2_MPEG_VIDEO_H264_PROFILE_HIGH_444_INTRA</constant> </entry> + <entry>High 444 Intra profile</entry> + </row> + <row> + <entry><constant>V4L2_MPEG_VIDEO_H264_PROFILE_CAVLC_444_INTRA</constant> </entry> + <entry>CAVLC 444 Intra profile</entry> + </row> + <row> + <entry><constant>V4L2_MPEG_VIDEO_H264_PROFILE_SCALABLE_BASELINE</constant> </entry> + <entry>Scalable Baseline profile</entry> + </row> + <row> + <entry><constant>V4L2_MPEG_VIDEO_H264_PROFILE_SCALABLE_HIGH</constant> </entry> + <entry>Scalable High profile</entry> + </row> + <row> + <entry><constant>V4L2_MPEG_VIDEO_H264_PROFILE_SCALABLE_HIGH_INTRA</constant> </entry> + <entry>Scalable High Intra profile</entry> + </row> + <row> + <entry><constant>V4L2_MPEG_VIDEO_H264_PROFILE_STEREO_HIGH</constant> </entry> + <entry>Stereo High profile</entry> + </row> + <row> + <entry><constant>V4L2_MPEG_VIDEO_H264_PROFILE_MULTIVIEW_HIGH</constant> </entry> + <entry>Multiview High profile</entry> + </row> + + </tbody> + </entrytbl> + </row> + + <row><entry></entry></row> + <row> + <entry spanname="id"><constant>V4L2_CID_MPEG_VIDEO_MPEG4_PROFILE</constant> </entry> + <entry>enum v4l2_mpeg_mpeg4_profile</entry> + </row> + <row><entry spanname="descr">The profile information for MPEG4. +Applicable to the MPEG4 encoder. +Possible values are:</entry> + </row> + <row> + <entrytbl spanname="descr" cols="2"> + <tbody valign="top"> + <row> + <entry><constant>V4L2_MPEG_VIDEO_PROFILE_SIMPLE</constant> </entry> + <entry>Simple profile</entry> + </row> + <row> + <entry><constant>V4L2_MPEG_VIDEO_PROFILE_ADVANCED_SIMPLE</constant> </entry> + <entry>Advanced Simple profile</entry> + </row> + <row> + <entry><constant>V4L2_MPEG_VIDEO_PROFILE_CORE</constant> </entry> + <entry>Core profile</entry> + </row> + <row> + <entry><constant>V4L2_MPEG_VIDEO_PROFILE_SIMPLE_SCALABLE</constant> </entry> + <entry>Simple Scalable profile</entry> + </row> + <row> + <entry><constant>V4L2_MPEG_VIDEO_PROFILE_ADVANCED_CODING_EFFICIENCY</constant> </entry> + <entry></entry> + </row> + </tbody> + </entrytbl> + </row> + + <row><entry></entry></row> + <row> + <entry spanname="id"><constant>V4L2_CID_MPEG_VIDEO_MAX_REF_PIC</constant> </entry> + <entry>integer</entry> + </row> + <row><entry spanname="descr">The maximum number of reference pictures used for encoding. +Applicable to the encoder. +</entry> + </row> + + <row><entry></entry></row> + <row> + <entry spanname="id"><constant>V4L2_CID_MPEG_VIDEO_MULTI_SLICE_MODE</constant> </entry> + <entry>enum v4l2_mpeg_multi_slice_mode</entry> + </row> + <row><entry spanname="descr">Determines how the encoder should handle division of frame into slices. +Applicable to the encoder. +Possible values are:</entry> + </row> + <row> + <entrytbl spanname="descr" cols="2"> + <tbody valign="top"> + <row> + <entry><constant>V4L2_MPEG_VIDEO_MULTI_SLICE_MODE_SINGLE</constant> </entry> + <entry>Single slice per frame.</entry> + </row> + <row> + <entry><constant>V4L2_MPEG_VIDEO_MULTI_SLICE_MODE_MAX_MB</constant> </entry> + <entry>Multiple slices with set maximum number of macroblocks per slice.</entry> + </row> + <row> + <entry><constant>V4L2_MPEG_VIDEO_MULTI_SLICE_MODE_MAX_BYTES</constant> </entry> + <entry>Multiple slice with set maximum size in bytes per slice.</entry> + </row> + </tbody> + </entrytbl> + </row> + + <row><entry></entry></row> + <row> + <entry spanname="id"><constant>V4L2_CID_MPEG_VIDEO_MULTI_SLICE_MAX_MB</constant> </entry> + <entry>integer</entry> + </row> + <row><entry spanname="descr">The maximum number of macroblocks in a slice. Used when +<constant>V4L2_CID_MPEG_VIDEO_MULTI_SLICE_MODE</constant> is set to <constant>V4L2_MPEG_VIDEO_MULTI_SLICE_MODE_MAX_MB</constant>. +Applicable to the encoder.</entry> + </row> + + <row><entry></entry></row> + <row> + <entry spanname="id"><constant>V4L2_CID_MPEG_VIDEO_MULTI_SLICE_MAX_BYTES</constant> </entry> + <entry>integer</entry> + </row> + <row><entry spanname="descr">The maximum size of a slice in bytes. Used when +<constant>V4L2_CID_MPEG_VIDEO_MULTI_SLICE_MODE</constant> is set to <constant>V4L2_MPEG_VIDEO_MULTI_SLICE_MODE_MAX_BYTES</constant>. +Applicable to the encoder.</entry> + </row> + + <row><entry></entry></row> + <row> + <entry spanname="id"><constant>V4L2_CID_MPEG_VIDEO_H264_LOOP_FILTER_MODE</constant> </entry> + <entry>enum v4l2_mpeg_h264_loop_filter_mode</entry> + </row> + <row><entry spanname="descr">Loop filter mode for H264 encoder. +Possible values are:</entry> + </row> + <row> + <entrytbl spanname="descr" cols="2"> + <tbody valign="top"> + <row> + <entry><constant>V4L2_MPEG_VIDEO_H264_LOOP_FILTER_MODE_ENABLED</constant> </entry> + <entry>Loop filter is enabled.</entry> + </row> + <row> + <entry><constant>V4L2_MPEG_VIDEO_H264_LOOP_FILTER_MODE_DISABLED</constant> </entry> + <entry>Loop filter is disabled.</entry> + </row> + <row> + <entry><constant>V4L2_MPEG_VIDEO_H264_LOOP_FILTER_MODE_DISABLED_AT_SLICE_BOUNDARY</constant> </entry> + <entry>Loop filter is disabled at the slice boundary.</entry> + </row> + </tbody> + </entrytbl> + </row> + + <row><entry></entry></row> + <row> + <entry spanname="id"><constant>V4L2_CID_MPEG_VIDEO_H264_LOOP_FILTER_ALPHA</constant> </entry> + <entry>integer</entry> + </row> + <row><entry spanname="descr">Loop filter alpha coefficient, defined in the H264 standard. +Applicable to the H264 encoder.</entry> + </row> + + <row><entry></entry></row> + <row> + <entry spanname="id"><constant>V4L2_CID_MPEG_VIDEO_H264_LOOP_FILTER_BETA</constant> </entry> + <entry>integer</entry> + </row> + <row><entry spanname="descr">Loop filter beta coefficient, defined in the H264 standard. +Applicable to the H264 encoder.</entry> + </row> + + <row><entry></entry></row> + <row> + <entry spanname="id"><constant>V4L2_CID_MPEG_VIDEO_H264_ENTROPY_MODE</constant> </entry> + <entry>enum v4l2_mpeg_h264_symbol_mode</entry> + </row> + <row><entry spanname="descr">Entropy coding mode for H264 - CABAC/CAVALC. +Applicable to the H264 encoder. +Possible values are:</entry> + </row> + <row> + <entrytbl spanname="descr" cols="2"> + <tbody valign="top"> + <row> + <entry><constant>V4L2_MPEG_VIDEO_H264_ENTROPY_MODE_CAVLC</constant> </entry> + <entry>Use CAVLC entropy coding.</entry> + </row> + <row> + <entry><constant>V4L2_MPEG_VIDEO_H264_ENTROPY_MODE_CABAC</constant> </entry> + <entry>Use CABAC entropy coding.</entry> + </row> + </tbody> + </entrytbl> + </row> + + <row><entry></entry></row> + <row> + <entry spanname="id"><constant>V4L2_CID_MPEG_VIDEO_H264_8X8_TRANSFORM</constant> </entry> + <entry>boolean</entry> + </row> + <row><entry spanname="descr">Enable 8X8 transform for H264. Applicable to the H264 encoder.</entry> + </row> + + <row><entry></entry></row> + <row> + <entry spanname="id"><constant>V4L2_CID_MPEG_VIDEO_CYCLIC_INTRA_REFRESH_MB</constant> </entry> + <entry>integer</entry> + </row> + <row><entry spanname="descr">Cyclic intra macroblock refresh. This is the number of continuous macroblocks +refreshed every frame. Each frame a succesive set of macroblocks is refreshed until the cycle completes and starts from the +top of the frame. Applicable to H264, H263 and MPEG4 encoder.</entry> + </row> + + <row><entry></entry></row> + <row> + <entry spanname="id"><constant>V4L2_CID_MPEG_VIDEO_FRAME_RC_ENABLE</constant> </entry> + <entry>boolean</entry> + </row> + <row><entry spanname="descr">Frame level rate control enable. +If this control is disabled then the quantization parameter for each frame type is constant and set with appropriate controls +(e.g. <constant>V4L2_CID_MPEG_VIDEO_H263_I_FRAME_QP</constant>). +If frame rate control is enabled then quantization parameter is adjusted to meet the chosen bitrate. Minimum and maximum value +for the quantization parameter can be set with appropriate controls (e.g. <constant>V4L2_CID_MPEG_VIDEO_H263_MIN_QP</constant>). +Applicable to encoders.</entry> + </row> + + <row><entry></entry></row> + <row> + <entry spanname="id"><constant>V4L2_CID_MPEG_VIDEO_MB_RC_ENABLE</constant> </entry> + <entry>boolean</entry> + </row> + <row><entry spanname="descr">Macroblock level rate control enable. +Applicable to the MPEG4 and H264 encoders.</entry> + </row> + + <row><entry></entry></row> + <row> + <entry spanname="id"><constant>V4L2_CID_MPEG_VIDEO_MPEG4_QPEL</constant> </entry> + <entry>boolean</entry> + </row> + <row><entry spanname="descr">Quarter pixel motion estimation for MPEG4. Applicable to the MPEG4 encoder.</entry> + </row> + + <row><entry></entry></row> + <row> + <entry spanname="id"><constant>V4L2_CID_MPEG_VIDEO_H263_I_FRAME_QP</constant> </entry> + <entry>integer</entry> + </row> + <row><entry spanname="descr">Quantization parameter for an I frame for H263. Valid range: from 1 to 31.</entry> + </row> + + <row><entry></entry></row> + <row> + <entry spanname="id"><constant>V4L2_CID_MPEG_VIDEO_H263_MIN_QP</constant> </entry> + <entry>integer</entry> + </row> + <row><entry spanname="descr">Minimum quantization parameter for H263. Valid range: from 1 to 31.</entry> + </row> + + <row><entry></entry></row> + <row> + <entry spanname="id"><constant>V4L2_CID_MPEG_VIDEO_H263_MAX_QP</constant> </entry> + <entry>integer</entry> + </row> + <row><entry spanname="descr">Maximum quantization parameter for H263. Valid range: from 1 to 31.</entry> + </row> + + <row><entry></entry></row> + <row> + <entry spanname="id"><constant>V4L2_CID_MPEG_VIDEO_H263_P_FRAME_QP</constant> </entry> + <entry>integer</entry> + </row> + <row><entry spanname="descr">Quantization parameter for an P frame for H263. Valid range: from 1 to 31.</entry> + </row> + + <row><entry></entry></row> + <row> + <entry spanname="id"><constant>V4L2_CID_MPEG_VIDEO_H263_B_FRAME_QP</constant> </entry> + <entry>integer</entry> + </row> + <row><entry spanname="descr">Quantization parameter for an B frame for H263. Valid range: from 1 to 31.</entry> + </row> + + <row><entry></entry></row> + <row> + <entry spanname="id"><constant>V4L2_CID_MPEG_VIDEO_H264_I_FRAME_QP</constant> </entry> + <entry>integer</entry> + </row> + <row><entry spanname="descr">Quantization parameter for an I frame for H264. Valid range: from 0 to 51.</entry> + </row> + + <row><entry></entry></row> + <row> + <entry spanname="id"><constant>V4L2_CID_MPEG_VIDEO_H264_MIN_QP</constant> </entry> + <entry>integer</entry> + </row> + <row><entry spanname="descr">Minimum quantization parameter for H264. Valid range: from 0 to 51.</entry> + </row> + + <row><entry></entry></row> + <row> + <entry spanname="id"><constant>V4L2_CID_MPEG_VIDEO_H264_MAX_QP</constant> </entry> + <entry>integer</entry> + </row> + <row><entry spanname="descr">Maximum quantization parameter for H264. Valid range: from 0 to 51.</entry> + </row> + + <row><entry></entry></row> + <row> + <entry spanname="id"><constant>V4L2_CID_MPEG_VIDEO_H264_P_FRAME_QP</constant> </entry> + <entry>integer</entry> + </row> + <row><entry spanname="descr">Quantization parameter for an P frame for H264. Valid range: from 0 to 51.</entry> + </row> + + <row><entry></entry></row> + <row> + <entry spanname="id"><constant>V4L2_CID_MPEG_VIDEO_H264_B_FRAME_QP</constant> </entry> + <entry>integer</entry> + </row> + <row><entry spanname="descr">Quantization parameter for an B frame for H264. Valid range: from 0 to 51.</entry> + </row> + + <row><entry></entry></row> + <row> + <entry spanname="id"><constant>V4L2_CID_MPEG_VIDEO_MPEG4_I_FRAME_QP</constant> </entry> + <entry>integer</entry> + </row> + <row><entry spanname="descr">Quantization parameter for an I frame for MPEG4. Valid range: from 1 to 31.</entry> + </row> + + <row><entry></entry></row> + <row> + <entry spanname="id"><constant>V4L2_CID_MPEG_VIDEO_MPEG4_MIN_QP</constant> </entry> + <entry>integer</entry> + </row> + <row><entry spanname="descr">Minimum quantization parameter for MPEG4. Valid range: from 1 to 31.</entry> + </row> + + <row><entry></entry></row> + <row> + <entry spanname="id"><constant>V4L2_CID_MPEG_VIDEO_MPEG4_MAX_QP</constant> </entry> + <entry>integer</entry> + </row> + <row><entry spanname="descr">Maximum quantization parameter for MPEG4. Valid range: from 1 to 31.</entry> + </row> + + <row><entry></entry></row> + <row> + <entry spanname="id"><constant>V4L2_CID_MPEG_VIDEO_MPEG4_P_FRAME_QP</constant> </entry> + <entry>integer</entry> + </row> + <row><entry spanname="descr">Quantization parameter for an P frame for MPEG4. Valid range: from 1 to 31.</entry> + </row> + + <row><entry></entry></row> + <row> + <entry spanname="id"><constant>V4L2_CID_MPEG_VIDEO_MPEG4_B_FRAME_QP</constant> </entry> + <entry>integer</entry> + </row> + <row><entry spanname="descr">Quantization parameter for an B frame for MPEG4. Valid range: from 1 to 31.</entry> + </row> + + <row><entry></entry></row> + <row> + <entry spanname="id"><constant>V4L2_CID_MPEG_VIDEO_VBV_SIZE</constant> </entry> + <entry>integer</entry> + </row> + <row><entry spanname="descr">The Video Buffer Verifier size in kilobytes, it is used as a limitation of frame skip. +The VBV is defined in the standard as a mean to verify that the produced stream will be succesfully decoded. +The standard describes it as "Part of a hypothetical decoder that is conceptually connected to the +output of the encoder. Its purpose is to provide a constraint on the variability of the data rate that an +encoder or editing process may produce.". +Applicable to the MPEG1, MPEG2, MPEG4 encoders.</entry> + </row> + + <row><entry></entry></row> + <row> + <entry spanname="id"><constant>V4L2_CID_MPEG_VIDEO_H264_CPB_SIZE</constant> </entry> + <entry>integer</entry> + </row> + <row><entry spanname="descr">The Coded Picture Buffer size in kilobytes, it is used as a limitation of frame skip. +The CPB is defined in the H264 standard as a mean to verify that the produced stream will be succesfully decoded. +Applicable to the H264 encoder.</entry> + </row> + + <row><entry></entry></row> + <row> + <entry spanname="id"><constant>V4L2_CID_MPEG_VIDEO_H264_I_PERIOD</constant> </entry> + <entry>integer</entry> + </row> + <row><entry spanname="descr">Period between I-frames in the open GOP for H264. In case of an open GOP +this is the period between two I-frames. The period between IDR (Instantaneous Decoding Refresh) frames is taken from the GOP_SIZE control. +An IDR frame, which stands for Instantaneous Decoding Refresh is an I-frame after which no prior frames are +referenced. This means that a stream can be restarted from an IDR frame without the need to store or decode any +previous frames. Applicable to the H264 encoder.</entry> + </row> + + <row><entry></entry></row> + <row> + <entry spanname="id"><constant>V4L2_CID_MPEG_VIDEO_HEADER_MODE</constant> </entry> + <entry>enum v4l2_mpeg_header_mode</entry> + </row> + <row><entry spanname="descr">Determines whether the header is returned as the first buffer or is +it returned together with the first frame. Applicable to encoders. +Possible values are:</entry> + </row> + <row> + <entrytbl spanname="descr" cols="2"> + <tbody valign="top"> + <row> + <entry><constant>V4L2_MPEG_VIDEO_HEADER_MODE_SEPARATE</constant> </entry> + <entry>The stream header is returned separately in the first buffer.</entry> + </row> + <row> + <entry><constant>V4L2_MPEG_VIDEO_HEADER_MODE_JOINED_WITH_1ST_FRAME</constant> </entry> + <entry>The stream header is returned together with the first encoded frame.</entry> + </row> + </tbody> + </entrytbl> + </row> + <row><entry></entry></row> + <row> + <entry spanname="id"><constant>V4L2_CID_MPEG_VIDEO_DECODER_MPEG4_DEBLOCK_FILTER</constant> </entry> + <entry>boolean</entry> + </row><row><entry spanname="descr">Enabled the deblocking post processing filter for MPEG4 decoder. +Applicable to the MPEG4 decoder.</entry> + </row> + <row><entry></entry></row> + <row> + <entry spanname="id"><constant>V4L2_CID_MPEG_VIDEO_MPEG4_VOP_TIME_RES</constant> </entry> + <entry>integer</entry> + </row><row><entry spanname="descr">vop_time_increment_resolution value for MPEG4. Applicable to the MPEG4 encoder.</entry> + </row> + <row><entry></entry></row> + <row> + <entry spanname="id"><constant>V4L2_CID_MPEG_VIDEO_MPEG4_VOP_TIME_INC</constant> </entry> + <entry>integer</entry> + </row><row><entry spanname="descr">vop_time_increment value for MPEG4. Applicable to the MPEG4 encoder.</entry> + </row> + + </tbody> + </tgroup> + </table> + </section> + + <section> + <title>MFC 5.1 MPEG Controls</title> + + <para>The following MPEG class controls deal with MPEG +decoding and encoding settings that are specific to the Multi Format Codec 5.1 device present +in the S5P family of SoCs by Samsung. +</para> + + <table pgwide="1" frame="none" id="mfc51-control-id"> + <title>MFC 5.1 Control IDs</title> + <tgroup cols="4"> + <colspec colname="c1" colwidth="1*" /> + <colspec colname="c2" colwidth="6*" /> + <colspec colname="c3" colwidth="2*" /> + <colspec colname="c4" colwidth="6*" /> + <spanspec namest="c1" nameend="c2" spanname="id" /> + <spanspec namest="c2" nameend="c4" spanname="descr" /> + <thead> + <row> + <entry spanname="id" align="left">ID</entry> + <entry align="left">Type</entry> + </row><row><entry spanname="descr" align="left">Description</entry> + </row> + </thead> + <tbody valign="top"> + <row><entry></entry></row> + <row> + <entry spanname="id"><constant>V4L2_CID_MPEG_MFC51_VIDEO_DECODER_H264_DISPLAY_DELAY_ENABLE</constant> </entry> + <entry>integer</entry> + </row><row><entry spanname="descr">If the display delay is enabled then the decoder has to return a +CAPTURE buffer after processing a certain number of OUTPUT buffers. If this number is low, then it may result in +buffers not being dequeued in display order. In addition hardware may still use those buffers as reference, thus +application should not write to those buffers. This feature can be used for example for generating thumbnails of videos. +Applicable to the H264 decoder. + </entry> + </row> + <row><entry></entry></row> + <row> + <entry spanname="id"><constant>V4L2_CID_MPEG_MFC51_VIDEO_DECODER_H264_DISPLAY_DELAY</constant> </entry> + <entry>integer</entry> + </row><row><entry spanname="descr">Display delay value for H264 decoder. +The decoder is forced to return a decoded frame after the set 'display delay' number of frames. If this number is +low it may result in frames returned out of dispaly order, in addition the hardware may still be using the returned buffer +as a reference picture for subsequent frames. +</entry> + </row> + <row><entry></entry></row> + <row> + <entry spanname="id"><constant>V4L2_CID_MPEG_MFC51_VIDEO_H264_NUM_REF_PIC_FOR_P</constant> </entry> + <entry>integer</entry> + </row><row><entry spanname="descr">The number of reference pictures used for encoding a P picture. +Applicable to the H264 encoder.</entry> + </row> + <row><entry></entry></row> + <row> + <entry spanname="id"><constant>V4L2_CID_MPEG_MFC51_VIDEO_PADDING</constant> </entry> + <entry>boolean</entry> + </row><row><entry spanname="descr">Padding enable in the encoder - use a color instead of repeating border pixels. +Applicable to encoders.</entry> + </row> + <row><entry></entry></row> + <row> + <entry spanname="id"><constant>V4L2_CID_MPEG_MFC51_VIDEO_PADDING_YUV</constant> </entry> + <entry>integer</entry> + </row><row><entry spanname="descr">Padding color in the encoder. Applicable to encoders. The supplied 32-bit integer is interpreted as follows (bit +0 = least significant bit):</entry> + </row> + <row> + <entrytbl spanname="descr" cols="2"> + <tbody valign="top"> + <row> + <entry>Bit 0:7</entry> + <entry>V chrominance information</entry> + </row> + <row> + <entry>Bit 8:15</entry> + <entry>U chrominance information</entry> + </row> + <row> + <entry>Bit 16:23</entry> + <entry>Y luminance information</entry> + </row> + <row> + <entry>Bit 24:31</entry> + <entry>Must be zero.</entry> + </row> + </tbody> + </entrytbl> + </row> + <row><entry></entry></row> + <row> + <entry spanname="id"><constant>V4L2_CID_MPEG_MFC51_VIDEO_RC_REACTION_COEFF</constant> </entry> + <entry>integer</entry> + </row><row><entry spanname="descr">Reaction coefficient for MFC rate control. Applicable to encoders. +<para>Note 1: Valid only when the frame level RC is enabled.</para> +<para>Note 2: For tight CBR, this field must be small (ex. 2 ~ 10). +For VBR, this field must be large (ex. 100 ~ 1000).</para> +<para>Note 3: It is not recommended to use the greater number than FRAME_RATE * (10^9 / BIT_RATE).</para> +</entry> + </row> + <row><entry></entry></row> + <row> + <entry spanname="id"><constant>V4L2_CID_MPEG_MFC51_VIDEO_H264_ADAPTIVE_RC_DARK</constant> </entry> + <entry>boolean</entry> + </row><row><entry spanname="descr">Adaptive rate control for dark region. +Valid only when H.264 and macroblock level RC is enabled (<constant>V4L2_CID_MPEG_VIDEO_MB_RC_ENABLE</constant>). +Applicable to the H264 encoder.</entry> + </row> + <row><entry></entry></row> + <row> + <entry spanname="id"><constant>V4L2_CID_MPEG_MFC51_VIDEO_H264_ADAPTIVE_RC_SMOOTH</constant> </entry> + <entry>boolean</entry> + </row><row><entry spanname="descr">Adaptive rate control for smooth region. +Valid only when H.264 and macroblock level RC is enabled (<constant>V4L2_CID_MPEG_VIDEO_MB_RC_ENABLE</constant>). +Applicable to the H264 encoder.</entry> + </row> + <row><entry></entry></row> + <row> + <entry spanname="id"><constant>V4L2_CID_MPEG_MFC51_VIDEO_H264_ADAPTIVE_RC_STATIC</constant> </entry> + <entry>boolean</entry> + </row><row><entry spanname="descr">Adaptive rate control for static region. +Valid only when H.264 and macroblock level RC is enabled (<constant>V4L2_CID_MPEG_VIDEO_MB_RC_ENABLE</constant>). +Applicable to the H264 encoder.</entry> + </row> + <row><entry></entry></row> + <row> + <entry spanname="id"><constant>V4L2_CID_MPEG_MFC51_VIDEO_H264_ADAPTIVE_RC_ACTIVITY</constant> </entry> + <entry>boolean</entry> + </row><row><entry spanname="descr">Adaptive rate control for activity region. +Valid only when H.264 and macroblock level RC is enabled (<constant>V4L2_CID_MPEG_VIDEO_MB_RC_ENABLE</constant>). +Applicable to the H264 encoder.</entry> + </row> + <row><entry></entry></row> + <row> + <entry spanname="id"><constant>V4L2_CID_MPEG_MFC51_VIDEO_FRAME_SKIP_MODE</constant> </entry> + <entry>enum v4l2_mpeg_mfc51_frame_skip_mode</entry> + </row> + <row><entry spanname="descr"> +Indicates in what conditions the encoder should skip frames. If encoding a frame would cause the encoded stream to be larger then +a chosen data limit then the frame will be skipped. +Possible values are:</entry> + </row> + <row> + <entrytbl spanname="descr" cols="2"> + <tbody valign="top"> + <row> + <entry><constant>V4L2_MPEG_MFC51_FRAME_SKIP_MODE_DISABLED</constant> </entry> + <entry>Frame skip mode is disabled.</entry> + </row> + <row> + <entry><constant>V4L2_MPEG_MFC51_FRAME_SKIP_MODE_LEVEL_LIMIT</constant> </entry> + <entry>Frame skip mode enabled and buffer limit is set by the chosen level and is defined by the standard.</entry> + </row> + <row> + <entry><constant>V4L2_MPEG_MFC51_FRAME_SKIP_MODE_BUF_LIMIT</constant> </entry> + <entry>Frame skip mode enabled and buffer limit is set by the VBV (MPEG1/2/4) or CPB (H264) buffer size control.</entry> + </row> + </tbody> + </entrytbl> + </row> + <row><entry></entry></row> + <row> + <entry spanname="id"><constant>V4L2_CID_MPEG_MFC51_VIDEO_RC_FIXED_TARGET_BIT</constant> </entry> + <entry>integer</entry> + </row><row><entry spanname="descr">Enable rate-control with fixed target bit. +If this setting is enabled, then the rate control logic of the encoder will calculate the average bitrate +for a GOP and keep it below or equal the set bitrate target. Otherwise the rate control logic calculates the +overall average bitrate for the stream and keeps it below or equal to the set bitrate. In the first case +the average bitrate for the whole stream will be smaller then the set bitrate. This is caused because the +average is calculated for smaller number of frames, on the other hand enabling this setting will ensure that +the stream will meet tight bandwidth contraints. Applicable to encoders. +</entry> + </row> + <row><entry></entry></row> + <row> + <entry spanname="id"><constant>V4L2_CID_MPEG_MFC51_VIDEO_FORCE_FRAME_TYPE</constant> </entry> + <entry>enum v4l2_mpeg_mfc51_force_frame_type</entry> + </row> + <row><entry spanname="descr">Force a frame type for the next queued buffer. Applicable to encoders. +Possible values are:</entry> + </row> + <row> + <entrytbl spanname="descr" cols="2"> + <tbody valign="top"> + <row> + <entry><constant>V4L2_MPEG_MFC51_FORCE_FRAME_TYPE_DISABLED</constant> </entry> + <entry>Forcing a specific frame type disabled.</entry> + </row> + <row> + <entry><constant>V4L2_MPEG_MFC51_FORCE_FRAME_TYPE_I_FRAME</constant> </entry> + <entry>Force an I-frame.</entry> + </row> + <row> + <entry><constant>V4L2_MPEG_MFC51_FORCE_FRAME_TYPE_NOT_CODED</constant> </entry> + <entry>Force a non-coded frame.</entry> + </row> + </tbody> + </entrytbl> + </row> </tbody> </tgroup> </table> |