From 670027c507e99521d416994a18a498def9ef2ea3 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Andr=C3=A9=20Fabian=20Silva=20Delgado?= Date: Sat, 22 Oct 2016 19:31:08 -0300 Subject: Linux-libre 4.8.3-gnu --- .../DocBook/media/v4l/vidioc-g-enc-index.xml | 189 --------------------- 1 file changed, 189 deletions(-) delete mode 100644 Documentation/DocBook/media/v4l/vidioc-g-enc-index.xml (limited to 'Documentation/DocBook/media/v4l/vidioc-g-enc-index.xml') diff --git a/Documentation/DocBook/media/v4l/vidioc-g-enc-index.xml b/Documentation/DocBook/media/v4l/vidioc-g-enc-index.xml deleted file mode 100644 index be25029a1..000000000 --- a/Documentation/DocBook/media/v4l/vidioc-g-enc-index.xml +++ /dev/null @@ -1,189 +0,0 @@ - - - ioctl VIDIOC_G_ENC_INDEX - &manvol; - - - - VIDIOC_G_ENC_INDEX - Get meta data about a compressed video stream - - - - - - int ioctl - int fd - int request - struct v4l2_enc_idx *argp - - - - - - Arguments - - - - fd - - &fd; - - - - request - - VIDIOC_G_ENC_INDEX - - - - argp - - - - - - - - - Description - - The VIDIOC_G_ENC_INDEX ioctl provides -meta data about a compressed video stream the same or another -application currently reads from the driver, which is useful for -random access into the stream without decoding it. - - To read the data applications must call -VIDIOC_G_ENC_INDEX with a pointer to a -&v4l2-enc-idx;. On success the driver fills the -entry array, stores the number of elements -written in the entries field, and -initializes the entries_cap field. - - Each element of the entry array -contains meta data about one picture. A -VIDIOC_G_ENC_INDEX call reads up to -V4L2_ENC_IDX_ENTRIES entries from a driver -buffer, which can hold up to entries_cap -entries. This number can be lower or higher than -V4L2_ENC_IDX_ENTRIES, but not zero. When the -application fails to read the meta data in time the oldest entries -will be lost. When the buffer is empty or no capturing/encoding is in -progress, entries will be zero. - - Currently this ioctl is only defined for MPEG-2 program -streams and video elementary streams. - - - struct <structname>v4l2_enc_idx</structname> - - &cs-str; - - - __u32 - entries - The number of entries the driver stored in the -entry array. - - - __u32 - entries_cap - The number of entries the driver can -buffer. Must be greater than zero. - - - __u32 - reserved[4] - Reserved for future extensions. -Drivers must set the array to zero. - - - &v4l2-enc-idx-entry; - entry[V4L2_ENC_IDX_ENTRIES] - Meta data about a compressed video stream. Each -element of the array corresponds to one picture, sorted in ascending -order by their offset. - - - -
- - - struct <structname>v4l2_enc_idx_entry</structname> - - &cs-str; - - - __u64 - offset - The offset in bytes from the beginning of the -compressed video stream to the beginning of this picture, that is a -PES packet header as defined in or a picture -header as defined in . When -the encoder is stopped, the driver resets the offset to zero. - - - __u64 - pts - The 33 bit Presentation Time -Stamp of this picture as defined in . - - - __u32 - length - The length of this picture in bytes. - - - __u32 - flags - Flags containing the coding type of this picture, see . - - - __u32 - reserved[2] - Reserved for future extensions. -Drivers must set the array to zero. - - - -
- - - Index Entry Flags - - &cs-def; - - - V4L2_ENC_IDX_FRAME_I - 0x00 - This is an Intra-coded picture. - - - V4L2_ENC_IDX_FRAME_P - 0x01 - This is a Predictive-coded picture. - - - V4L2_ENC_IDX_FRAME_B - 0x02 - This is a Bidirectionally predictive-coded -picture. - - - V4L2_ENC_IDX_FRAME_MASK - 0x0F - AND the flags field with -this mask to obtain the picture coding type. - - - -
- - - - &return-value; - - -- cgit v1.2.3