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handbook/multimedia: minor improvements for clarity post fcbb060fe7
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Ceri Davies
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@ -57,7 +57,7 @@ This chapter covers various multimedia components such as audio, video, and imag
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It also discusses various media formats and codecs, as well as tools and applications for multimedia creation and playback.
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Additionally, the chapter covers multimedia system configuration, troubleshooting, and optimization.
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Whether you are a multimedia enthusiast or a professional content creator, FreeBSD offers a robust platform for multimedia work.
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This chapter aims to help get the most out of FreeBSD's multimedia capabilities, providing useful information and practical examples to help get started
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This chapter aims to help get the most out of FreeBSD's multimedia capabilities, providing useful information and practical examples to help get started.
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[[sound-setup]]
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== Setting Up the Sound Card
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@ -68,10 +68,10 @@ The list of supported sound cards can be consulted in man:sound[4].
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[NOTE]
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====
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It is only necessary to load the sound card module in case FreeBSD has not detected it correctly.
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It is only necessary to load the sound card module if FreeBSD has not detected it correctly.
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====
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In case of not knowing which sound card the system has or which module to use the `snd_driver` metadriver can be loaded executing the following command:
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Where it is not known knowing which sound card the system has, or which module to use, the `snd_driver` metadriver can be loaded by executing the following command:
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[source,shell]
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....
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@ -132,7 +132,7 @@ man:beep[1] can be used to produce some noise, confirming that the sound card is
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[[sound-mixer]]
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=== Mixer
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FreeBSD has different utilities to set/display sound card mixer values built on the FreeBSD Sound System:
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FreeBSD has different utilities to set and display sound card mixer values built on the FreeBSD Sound System:
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.Supported mixer packages
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[options="header", cols="1,1,1,1"]
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@ -164,10 +164,9 @@ FreeBSD has different utilities to set/display sound card mixer values built on
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[[graphics-card-sound]]
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=== Graphics Card Sound
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Graphics cards often come with their own integrated sound devices, which may not be used as the default device.
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To confirm, run dmesg and look for the pcm entries:
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Identify how the system is enumerating the outputs executing the following command:
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Graphics cards often come with their own integrated sound devices, and it may be unclear which is being used as the default device.
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To confirm, run dmesg and look for the pcm entries to identify how the system is enumerating the outputs.
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Execute the following command:
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[source,shell]
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....
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@ -189,8 +188,8 @@ pcm6: <HDA Realtek ALC889 PCM #2 Digital> at cad 2 nid 1 on hdac1
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pcm7: <HDA Realtek ALC889 PCM #3 Digital> at cad 2 nid 1 on hdac1
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....
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The graphics card (NVIDIA(R)) has been enumerated before the sound card (Realtek(R)).
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This can be changed to use the sound card as the default device executing the following command:
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The graphics card (NVIDIA(R)) has been enumerated before the sound card (Realtek(R)), with the sound card appearing as `pcm4`.
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The system can be configured to use the sound card as the default device by executing the following command:
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[source,shell]
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....
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@ -207,9 +206,9 @@ hw.snd.default_unit=4
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[[automatically-switching-headphones]]
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=== Automatically Switching to Headphones
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Some systems may struggle with switching between audio outputs, fortunately FreeBSD allows for these to be specified in [.filename]#device.hints#, which can be configured for automatic switchover.
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Some systems may struggle with switching between audio outputs, but fortunately FreeBSD allows automatic switchover to be configured in [.filename]#device.hints#.
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Identify how the system is enumerating the audio outputs executing the following command:
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Identify how the system is enumerating the audio outputs by executing the following command:
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[source,shell]
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....
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@ -329,7 +328,7 @@ To install Elisa, execute:
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[[gnome-music]]
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=== GNOME Music
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Music is the new GNOME music playing application.
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GNOME Music is the new GNOME music playing application.
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It aims to combine an elegant and immersive browsing experience with simple and straightforward controls.
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To install GNOME Music, execute:
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@ -407,7 +406,7 @@ This section introduces some of the software available from the FreeBSD Ports Co
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[[mplayer]]
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=== MPlayer
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MPlayer is a multimedia player and encoder suite which runs on many platforms.
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MPlayer is a multimedia player and encoder suite which runs on many platforms and works on the command line.
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It plays a terrific number of different file formats and codecs including popular DivX, XviD, H.264 streams as well as DVD and SVCDs along with many popular audio codecs.
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To install MPlayer, execute:
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@ -417,7 +416,6 @@ To install MPlayer, execute:
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# pkg install mplayer
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....
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MPlayer is a video player that works on the command line.
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For examples of how MPlayer works see man:mplayer[1].
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[[smplayer]]
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@ -480,7 +478,7 @@ To install the required utilities, execute:
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# pkg install webcamd pwcview
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....
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Enable man:webcamd[8] service in `/etc/rc.conf` to start at system boot:
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Enable the man:webcamd[8] service in `/etc/rc.conf` to start it at system boot:
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[source,shell]
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....
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@ -495,14 +493,14 @@ To add the user to `webcamd` group execute the following command:
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# pw groupmod webcamd -m username
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....
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Since package:multimedia/webcamd[] needs the man:cuse[3] module this module must be loaded executing the following command:
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Since package:multimedia/webcamd[] needs the man:cuse[3] module this module must be loaded by executing the following command:
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[source,shell]
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....
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# kldload cuse
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....
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To load man:cuse[3] at system boot execute the command:
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To load man:cuse[3] at system boot, execute the command:
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[source,shell]
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....
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@ -534,11 +532,11 @@ Configure the available webcam executing the following command:
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[NOTE]
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====
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Note here that if this is a plug-and-play USB webcam, changing the USB port to which it is connected, will change the output from `webcamd -l`, hence the entry in rc.conf might need updating.
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For laptops (that use USB integrated webcams) this won't be an issue though.
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Note here that if this is a plug-and-play USB webcam, changing the USB port to which it is connected will change the output from `webcamd -l`, and the entry in rc.conf might need to be updated.
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For laptops that use USB integrated webcams, this should not be an issue.
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====
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The man:webcamd[8] service must be started executing the following command:
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The man:webcamd[8] service must be started by executing the following command:
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[source,shell]
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....
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@ -553,13 +551,6 @@ Starting webcamd.
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webcamd 1616 - - Attached to ugen0.2[0]
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....
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To start webcamd automatically at system startup, execute the following command:
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[source,shell]
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....
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# sysrc webcamd_enable="YES"
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....
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package:multimedia/pwcview[] can be used to check the proper functioning of the webcam.
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The following command can be used to execute package:multimedia/pwcview[]:
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@ -575,7 +566,7 @@ image::pwcview.png[pwcview showing Absolute FreeBSD 3rd edition as an example]
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[[meetings-software-status]]
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=== Meetings software status
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FreeBSD currently supports the main tools used to carry out videoconferences.
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FreeBSD currently supports the following tools used to carry out videoconferences.
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.Meeting software
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[options="header", cols="1,1,1,1"]
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@ -617,7 +608,7 @@ In FreeBSD, access to image scanners is provided by link:http://www.sane-project
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[[scanners-kernel-usb]]
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=== Checking the Scanner
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Before making any configuration it is important to check the scanner is supported by SANE.
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Before attempting any configuration it is important to check the scanner is supported by SANE.
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With the scanner connected, run the following command to get all connected USB devices:
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@ -644,7 +635,7 @@ Run the following command to obtain the `idVendor` and the `idProduct`:
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[NOTE]
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====
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Note here that the scanner is a plug-and-play device, changing the USB port to which it is connected, will change the output from `usbconfig list`.
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Note here that the scanner is a plug-and-play device, and changing the USB port to which it is connected will change the output from `usbconfig list`.
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====
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The output should be similar to the following:
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