Bug 2120747

Summary:	Please enable XV (XVideo) output device
Product:	[Fedora] Fedora	Reporter:	Andrew <travneff>
Component:	ffmpeg	Assignee:	Andreas Schneider <asn>
Status:	CLOSED ERRATA	QA Contact:
Severity:	unspecified	Docs Contact:
Priority:	unspecified
Version:	36	CC:	asn, dominik, ngompa13, travneff, yselkowi
Target Milestone:	---
Target Release:	---
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:
Fixed In Version:	ffmpeg-5.1.2-9.fc37 ffmpeg-5.1.2-12.el9	Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2023-02-16 02:03:25 UTC	Type:	Bug
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:

Description Andrew 2022-08-23 16:30:31 UTC

Description of problem:

Currently it's not possible to use xv output format in ffmpeg:

  $ ffmpeg -i in.mkv /tmp/out.mkv -f xv display
  <skip>
  [NULL @ 0x557889c4cec0] Requested output format 'xv' is not a suitable output format
  display: Invalid argument

It's absent in ffmpeg formats list:

  $ ffmpeg -formats 2>/dev/null | grep -i xv
   D  xvag            Sony PS3 XVAG

I see `#define CONFIG_XV_OUTDEV 0` in build log:
  https://kojipkgs.fedoraproject.org//packages/ffmpeg/5.0.1/3.fc36/data/logs/x86_64/build.log

Seems like it's produced by these commands in configure, not sure about the exact reason:

  xv_outdev_deps="X11_extensions_Xvlib_h XvGetPortAttribute"
  xv_outdev_extralibs="-lXv"
  check_func_headers "X11/Xlib.h X11/extensions/Xvlib.h" XvGetPortAttribute -lXv


Version-Release number of selected component (if applicable):
  ffmpeg-5.0.1-3.fc36.x86_64
  libavdevice-5.0.1-3.fc36.x86_64


Additional info:
Why I need it: my task is to play and record video stream from /dev/video0 simultaneously.
Low play latency is important and xv output is much better in this sense than some other ways available for me.

Comment 1 Fedora Update System 2023-02-14 00:11:58 UTC

FEDORA-EPEL-2023-46c778698e has been submitted as an update to Fedora EPEL 9. https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2023-46c778698e

Comment 2 Fedora Update System 2023-02-14 00:11:59 UTC

FEDORA-2023-0bc1ca0d48 has been submitted as an update to Fedora 37. https://bodhi.fedoraproject.org/updates/FEDORA-2023-0bc1ca0d48

Comment 3 Fedora Update System 2023-02-15 01:34:10 UTC

FEDORA-2023-0bc1ca0d48 has been pushed to the Fedora 37 testing repository.
Soon you'll be able to install the update with the following command:
`sudo dnf upgrade --enablerepo=updates-testing --refresh --advisory=FEDORA-2023-0bc1ca0d48`
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2023-0bc1ca0d48

See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates.

Comment 4 Fedora Update System 2023-02-15 01:37:04 UTC

FEDORA-EPEL-2023-46c778698e has been pushed to the Fedora EPEL 9 testing repository.

You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2023-46c778698e

See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates.

Comment 5 Andrew 2023-02-15 14:44:39 UTC

Have this installed but seems like no changes: ffmpeg-5.1.2-9.fc37.x86_64
Still can't use xv output

Comment 6 Yaakov Selkowitz 2023-02-15 19:04:36 UTC

Unfortunately, right now there is an NVR clash between Fedora and RPMFusion builds.  The Fedora -9.el37 build definitely shows a dependency on libXv, and "xv" shows up in ffmpeg/ffplay -formats/-devices.  Are you sure you're using only Fedora's builds?

Comment 7 Andrew 2023-02-15 21:37:29 UTC

Thank you, you are right and I missed it completely.
Now I see xv out in ffmpeg from ffmpeg-free package, so this ticket can be closed. I don't see proper description for "closed" status (like done/fixed) so guessing it's available only for you.
Thank you for your help!

Comment 8 Yaakov Selkowitz 2023-02-15 21:38:55 UTC

If you could give "karma" (thumbs up) to the update linked above, that would help move this along.

Comment 9 Fedora Update System 2023-02-16 02:03:25 UTC

FEDORA-2023-0bc1ca0d48 has been pushed to the Fedora 37 stable repository.
If problem still persists, please make note of it in this bug report.

Comment 10 Fedora Update System 2023-02-17 02:22:25 UTC

FEDORA-EPEL-2023-46c778698e has been pushed to the Fedora EPEL 9 testing repository.

You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2023-46c778698e

See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates.

Comment 11 Fedora Update System 2023-02-24 04:11:55 UTC

FEDORA-EPEL-2023-46c778698e has been pushed to the Fedora EPEL 9 stable repository.
If problem still persists, please make note of it in this bug report.