diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2012-03-23 14:39:09 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2012-03-23 14:39:09 -0700 |
commit | e317234975cb7463b8ca21a93bb6862d9dcf113f (patch) | |
tree | 4446fa3a21364f3cba23a22aa2a94027f169d8df /Documentation/DocBook/media/v4l/vidioc-encoder-cmd.xml | |
parent | f37ab0fba271e43edab0e3ae9fe644fcda455402 (diff) | |
parent | 7483d45f0aee3afc0646d185cabd4af9f6cab58c (diff) |
Merge branch 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media
Pull media updates from Mauro Carvalho Chehab:
- V4L2 API additions to better support JPEG compression control
- media API additions to properly support MPEG decoders
- V4L2 API additions for image crop/scaling
- a few other V4L2 API DocBook fixes/improvements
- two new DVB frontend drivers: m88rs2000 and rtl2830
- two new DVB drivers: az6007 and rtl28xxu
- a framework for ISA drivers, that removed lots of common code found
at the ISA radio drivers
- a new FM transmitter driver (radio-keene)
- a GPIO-based IR receiver driver
- a new sensor driver: mt9m032
- some new video drivers: adv7183, blackfin, mx2_emmaprp, sii9234_drv,
vs6624
- several new board additions, driver fixes, improvements and cleanups.
* 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (295 commits)
[media] update CARDLIST.em28xx
[media] partially reverts changeset fa5527c
[media] stb0899: fix the limits for signal strength values
[media] em28xx: support for 2304:0242 PCTV QuatroStick (510e)
[media] em28xx: support for 2013:0251 PCTV QuatroStick nano (520e)
[media] -EINVAL -> -ENOTTY
[media] gspca - sn9c20x: Cleanup source
[media] gspca - sn9c20x: Simplify register write for capture start/stop
[media] gspca - sn9c20x: Add automatic JPEG compression mechanism
[media] gspca - sn9c20x: Greater delay in case of sensor no response
[media] gspca - sn9c20x: Optimize the code of write sequences
[media] gspca - sn9c20x: Add the JPEG compression quality control
[media] gspca - sn9c20x: Add a delay after Omnivision sensor reset
[media] gspca - sn9c20x: Propagate USB errors to higher level
[media] gspca - sn9c20x: Use the new video control mechanism
[media] gspca - sn9c20x: Fix loss of frame start
[media] gspca - zc3xx: Lack of register 08 value for sensor cs2102k
[media] gspca - ov534_9: Add brightness to OmniVision 5621 sensor
[media] gspca - zc3xx: Add V4L2_CID_JPEG_COMPRESSION_QUALITY control support
[media] pvrusb2: fix 7MHz & 8MHz DVB-T tuner support for HVR1900 rev D1F5
...
Diffstat (limited to 'Documentation/DocBook/media/v4l/vidioc-encoder-cmd.xml')
-rw-r--r-- | Documentation/DocBook/media/v4l/vidioc-encoder-cmd.xml | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/Documentation/DocBook/media/v4l/vidioc-encoder-cmd.xml b/Documentation/DocBook/media/v4l/vidioc-encoder-cmd.xml index af7f3f2a36d..f431b3ba79b 100644 --- a/Documentation/DocBook/media/v4l/vidioc-encoder-cmd.xml +++ b/Documentation/DocBook/media/v4l/vidioc-encoder-cmd.xml @@ -74,15 +74,16 @@ only used by the STOP command and contains one bit: If the encoding will continue until the end of the current <wordasword>Group Of Pictures</wordasword>, otherwise it will stop immediately.</para> - <para>A <function>read</function>() call sends a START command to -the encoder if it has not been started yet. After a STOP command, + <para>A <function>read</function>() or &VIDIOC-STREAMON; call sends an implicit +START command to the encoder if it has not been started yet. After a STOP command, <function>read</function>() calls will read the remaining data buffered by the driver. When the buffer is empty, <function>read</function>() will return zero and the next <function>read</function>() call will restart the encoder.</para> - <para>A <function>close</function>() call sends an immediate STOP -to the encoder, and all buffered data is discarded.</para> + <para>A <function>close</function>() or &VIDIOC-STREAMOFF; call of a streaming +file descriptor sends an implicit immediate STOP to the encoder, and all buffered +data is discarded.</para> <para>These ioctls are optional, not all drivers may support them. They were introduced in Linux 2.6.21.</para> |