From fc0d1814d41af86fdd6c70097bad7c6ec3b53fd2 Mon Sep 17 00:00:00 2001 From: diego Date: Mon, 13 Aug 2007 22:50:44 +0000 Subject: AC3 --> AC-3 git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@24056 b3059339-0415-0410-9bf9-f77b7e298cf2 --- DOCS/man/en/mplayer.1 | 16 ++++++++-------- DOCS/xml/en/codecs.xml | 24 ++++++++++++------------ DOCS/xml/en/containers.xml | 2 +- DOCS/xml/en/encoding-guide.xml | 36 ++++++++++++++++++------------------ DOCS/xml/en/usage.xml | 20 ++++++++++---------- DOCS/xml/en/video.xml | 2 +- 6 files changed, 50 insertions(+), 50 deletions(-) (limited to 'DOCS') diff --git a/DOCS/man/en/mplayer.1 b/DOCS/man/en/mplayer.1 index 3db3aeabef..191902a3f3 100644 --- a/DOCS/man/en/mplayer.1 +++ b/DOCS/man/en/mplayer.1 @@ -1052,17 +1052,17 @@ Since MPlayer can only seek to the next keyframe this may be inexact. . .TP .B \-a52drc -Select the Dynamic Range Compression level for AC3 audio streams. +Select the Dynamic Range Compression level for AC-3 audio streams. is a float value ranging from 0 to 1, where 0 means no compression and 1 (which is the default) means full compression (make loud passages more silent and vice versa). -This option only shows an effect if the AC3 stream contains the required range +This option only shows an effect if the AC-3 stream contains the required range compression information. . .TP .B \-aid (also see \-alang) Select audio channel (MPEG: 0\-31, AVI/\:OGM: 1\-99, ASF/\:RM: 0\-127, -VOB(AC3): 128\-159, VOB(LPCM): 160\-191, MPEG-TS 17\-8190). +VOB(AC-3): 128\-159, VOB(LPCM): 160\-191, MPEG-TS 17\-8190). MPlayer prints the available audio IDs when run in verbose (\-v) mode. When playing an MPEG-TS stream, MPlayer/\:MEncoder will use the first program (if present) with the chosen audio stream. @@ -1183,14 +1183,14 @@ Request the number of playback channels (default: 2). MPlayer asks the decoder to decode the audio into as many channels as specified. Then it is up to the decoder to fulfill the requirement. -This is usually only important when playing videos with AC3 audio (like DVDs). +This is usually only important when playing videos with AC-3 audio (like DVDs). In that case liba52 does the decoding by default and correctly downmixes the audio into the requested number of channels. To directly control the number of output channels independently of how many channels are decoded, use the channels filter. .br .I NOTE: -This option is honored by codecs (AC3 only), filters (surround) and audio +This option is honored by codecs (AC-3 only), filters (surround) and audio output drivers (OSS at least). .sp 1 Available options are: @@ -1254,7 +1254,7 @@ libmpdemux/\:demuxer.h. . .TP .B \-dumpaudio (MPlayer only) -Dumps raw compressed audio stream to ./stream.dump (useful with MPEG/\:AC3, +Dumps raw compressed audio stream to ./stream.dump (useful with MPEG/\:AC-3, in most other cases the resulting file will not be playable). If you give more than one of \-dumpaudio, \-dumpvideo, \-dumpstream on the command line only the last one will work. @@ -1601,7 +1601,7 @@ Number of audio channels to capture. This option lets you play raw audio files. You have to use \-demuxer rawaudio as well. It may also be used to play audio CDs which are not 44kHz 16-bit stereo. -For playing raw AC3 streams use \-rawaudio format=0x2000 \-demuxer rawaudio. +For playing raw AC-3 streams use \-rawaudio format=0x2000 \-demuxer rawaudio. .sp 1 Available options are: .sp 1 @@ -4027,7 +4027,7 @@ Force the l3codeca.acm MP3 codec. .IPs "\-ac mad," Try libmad first, then fall back on others. .IPs "\-ac hwac3,a52," -Try hardware AC3 passthrough, software AC3, then others. +Try hardware AC-3 passthrough, software AC-3, then others. .IPs "\-ac hwdts," Try hardware DTS passthrough, then fall back on others. .IPs "\-ac -ffmp3," diff --git a/DOCS/xml/en/codecs.xml b/DOCS/xml/en/codecs.xml index 3e45b58e10..937b0ec15e 100644 --- a/DOCS/xml/en/codecs.xml +++ b/DOCS/xml/en/codecs.xml @@ -359,11 +359,11 @@ satisfied the requirements for x264. Windows Media Audio 9 (WMAv3) (using DMO DLL) - AC3 Dolby audio (native code, with + AC-3 Dolby audio (native code, with MMX/SSE/3DNow! optimization) - AC3 passing through sound card hardware + AC-3 passing through sound card hardware AAC @@ -372,7 +372,7 @@ satisfied the requirements for x264. Ogg Vorbis audio codec (native library) - RealAudio: DNET (low bitrate AC3), Cook, Sipro and ATRAC3 + RealAudio: DNET (low bitrate AC-3), Cook, Sipro and ATRAC3 QuickTime: Qualcomm and QDesign audio codecs @@ -395,17 +395,17 @@ satisfied the requirements for x264. -Software AC3 decoding +Software AC-3 decoding -This is the default decoder used for files with AC3 audio. +This is the default decoder used for files with AC-3 audio. -The AC3 decoder can create audio output mixes for 2, 4, or 6 speakers. +The AC-3 decoder can create audio output mixes for 2, 4, or 6 speakers. When configured for 6 speakers, this decoder provides separate output of -all the AC3 channels to the sound driver, allowing for full "surround -sound" experience without the external AC3 decoder required to use the +all the AC-3 channels to the sound driver, allowing for full "surround +sound" experience without the external AC-3 decoder required to use the hwac3 codec. @@ -415,7 +415,7 @@ channels. Use for a stereo downmix. For a 4 channel downmix (Left Front, Right Front, Left Surround and Right Surround outputs), use . In this case, any center channel will be mixed equally to the front channels. - will output all the AC3 channels as they are + will output all the AC-3 channels as they are encoded - in the order Left, Right, Left Surround, Right Surround, Center and LFE. @@ -436,12 +436,12 @@ also supposed to work). -Hardware AC3 decoding +Hardware AC-3 decoding -You need an AC3 capable sound card, with digital out (S/PDIF). The card's +You need an AC-3 capable sound card, with digital out (S/PDIF). The card's driver must properly support the AFMT_AC3 format (C-Media does). Connect -your AC3 decoder to the S/PDIF output, and use the option. It is experimental but known to work with C-Media cards and Soundblaster Live! + ALSA (but not OSS) drivers and DXR3/Hollywood+ MPEG decoder cards. diff --git a/DOCS/xml/en/containers.xml b/DOCS/xml/en/containers.xml index 4f6efcd471..352e99dae2 100644 --- a/DOCS/xml/en/containers.xml +++ b/DOCS/xml/en/containers.xml @@ -61,7 +61,7 @@ MPEG files come in different guises: VOB: This is the MPEG file format on DVDs. It is the same as MPG, plus the capability to contain subtitles or non-MPEG - (AC3) audio. It contains encoded MPEG-2 video and usually AC3 audio, but DTS, + (AC-3) audio. It contains encoded MPEG-2 video and usually AC-3 audio, but DTS, MP2 and uncompressed LPCM are allowed, too. Read the DVD section! diff --git a/DOCS/xml/en/encoding-guide.xml b/DOCS/xml/en/encoding-guide.xml index 0141e4dba0..fab2e12ab1 100644 --- a/DOCS/xml/en/encoding-guide.xml +++ b/DOCS/xml/en/encoding-guide.xml @@ -1517,14 +1517,14 @@ to get a list of supported codecs. Audio is a much simpler problem to solve: if you care about quality, just leave it as is. -Even AC3 5.1 streams are at most 448Kbit/s, and they are worth every bit. +Even AC-3 5.1 streams are at most 448Kbit/s, and they are worth every bit. You might be tempted to transcode the audio to high quality Vorbis, but -just because you do not have an A/V receiver for AC3 pass-through today +just because you do not have an A/V receiver for AC-3 pass-through today does not mean you will not have one tomorrow. Future-proof your DVD rips by -preserving the AC3 stream. -You can keep the AC3 stream either by copying it directly into the video +preserving the AC-3 stream. +You can keep the AC-3 stream either by copying it directly into the video stream during the encoding. -You can also extract the AC3 stream in order to mux it into containers such +You can also extract the AC-3 stream in order to mux it into containers such as NUT or Matroska. mplayer source_file.vob -aid 129 -dumpaudio -dumpfile sound.ac3 @@ -1569,7 +1569,7 @@ are discontinuities/splices where there are missing or extra audio frames. The correct way to handle this kind of problem is to insert silence or cut audio at these points. However MPlayer cannot do that, so if you -demux the AC3 audio and encode it with a separate app (or dump it to PCM with +demux the AC-3 audio and encode it with a separate app (or dump it to PCM with MPlayer), the splices will be left incorrect and the only way to correct them is to drop/dup video frames at the splice. @@ -1731,7 +1731,7 @@ limitations: Unfortunately, the most efficient codec, Vorbis, does not meet either of these requirements. Therefore, if you plan to store your movie in AVI, you will have to - use a less efficient codec such as MP3 or AC3. + use a less efficient codec such as MP3 or AC-3. @@ -2600,7 +2600,7 @@ mencoder dvd://2 -o title2.avi -ovc lavc -lavcopts vc ac3 - AC3, AKA Dolby Digital + AC-3, AKA Dolby Digital adpcm_ima_wav @@ -2635,7 +2635,7 @@ The first column contains the codec names that should be passed after the -An example with AC3 compression: +An example with AC-3 compression: mencoder dvd://2 -o title2.avi -oac lavc -lavcopts acodec=ac3 -ovc copy @@ -4746,7 +4746,7 @@ compliant. MPEG-2 9800 kbps 48000 Hz - AC3,PCM + AC-3,PCM 1536 kbps (max) 30000/1001, 24000/1001 4:3, 16:9 (only for 720x480) @@ -4759,7 +4759,7 @@ compliant. MPEG-1 1856 kbps 48000 Hz - AC3,PCM + AC-3,PCM 1536 kbps (max) 30000/1001, 24000/1001 4:3, 16:9 @@ -4792,7 +4792,7 @@ compliant. MPEG-2 9800 kbps 48000 Hz - MP2,AC3,PCM + MP2,AC-3,PCM 1536 kbps (max) 25 4:3, 16:9 (only for 720x576) @@ -4803,7 +4803,7 @@ compliant. MPEG-1 1856 kbps 48000 Hz - MP2,AC3,PCM + MP2,AC-3,PCM 1536 kbps (max) 25 4:3, 16:9 @@ -5169,7 +5169,7 @@ support it too well. For DVD audio, libavcodec's -AC3 codec is used. +AC-3 codec is used. @@ -5255,10 +5255,10 @@ keyint=18:vstrict=0:acodec=ac3:abitrate=192:aspect=16/9 -ofps 30000/1001 \ -PAL AVI Containing AC3 Audio to DVD +PAL AVI Containing AC-3 Audio to DVD -If the source already has AC3 audio, use -oac copy instead of re-encoding it. +If the source already has AC-3 audio, use -oac copy instead of re-encoding it. mencoder -oac copy -ovc lavc -of mpeg -mpegopts format=dvd:tsaf \ -vf scale=720:576,harddup -ofps 25 \ @@ -5270,10 +5270,10 @@ keyint=15:vstrict=0:aspect=16/9 -o movie.mpg -NTSC AVI Containing AC3 Audio to DVD +NTSC AVI Containing AC-3 Audio to DVD -If the source already has AC3 audio, and is NTSC @ 24000/1001 fps: +If the source already has AC-3 audio, and is NTSC @ 24000/1001 fps: mencoder -oac copy -ovc lavc -of mpeg -mpegopts format=dvd:tsaf:telecine \ -vf scale=720:480,harddup -lavcopts vcodec=mpeg2video:vrc_buf_size=1835:\ diff --git a/DOCS/xml/en/usage.xml b/DOCS/xml/en/usage.xml index f337b6507f..7a19fcdccd 100644 --- a/DOCS/xml/en/usage.xml +++ b/DOCS/xml/en/usage.xml @@ -541,10 +541,10 @@ explanation. -AC3/DTS Passthrough +AC-3/DTS Passthrough -DVDs usually have surround audio encoded in AC3 (Dolby Digital) or DTS +DVDs usually have surround audio encoded in AC-3 (Dolby Digital) or DTS (Digital Theater System) format. Some modern audio equipment is capable of decoding these formats internally. MPlayer can be configured to relay the audio data without decoding it. This will only work if @@ -552,7 +552,7 @@ you have a S/PDIF (Sony/Philips Digital Interface) jack in your sound card. -If your audio equipment can decode both AC3 and DTS, you can safely enable +If your audio equipment can decode both AC-3 and DTS, you can safely enable passthrough for both formats. Otherwise, enable passthrough for only the format your equipment supports. @@ -560,13 +560,13 @@ your equipment supports. To enable passthrough on the command line: - For AC3 only, use + For AC-3 only, use For DTS only, use - For both AC3 and DTS, use + For both AC-3 and DTS, use @@ -574,13 +574,13 @@ your equipment supports. To enable passthrough in the <application>MPlayer</application> configuration file: - For AC3 only, use + For AC-3 only, use For DTS only, use - For both AC3 and DTS, use + For both AC-3 and DTS, use @@ -588,7 +588,7 @@ your equipment supports. Note that there is a comma (",") at the end of and . This will make MPlayer fall back on the codecs it normally uses when -playing a file that does not have AC3 or DTS audio. +playing a file that does not have AC-3 or DTS audio. does not need a comma; MPlayer will fall back anyway when an audio family is specified. @@ -708,7 +708,7 @@ audio outputs are often muted and set to zero volume by default. Unfortunately, there is no standard for how channels are ordered. The orders -listed below are those of AC3 and are fairly typical; try them and see if your +listed below are those of AC-3 and are fairly typical; try them and see if your source matches. Channels are numbered starting with 0. @@ -996,7 +996,7 @@ downmixing. Here is a way to downmix PCM using : since we only care about the output of the first two channels, we only need to make two sets; the remaining four sets can be omitted. Beware that not all multichannel audio files have the same channel order! This example - demonstrates downmixing a file with the same channels as AC3 5.1: + demonstrates downmixing a file with the same channels as AC-3 5.1: 0 - front left 1 - front right diff --git a/DOCS/xml/en/video.xml b/DOCS/xml/en/video.xml index fb84c14ea8..48ba322dc5 100644 --- a/DOCS/xml/en/video.xml +++ b/DOCS/xml/en/video.xml @@ -2116,7 +2116,7 @@ problems, or DVD subtitle problems, give a try. - The em8300 supports playing back AC3 audio (surround sound) through the + The em8300 supports playing back AC-3 audio (surround sound) through the digital audio output of the card. See the option above, it must be used to specify the DXR3's output instead of a sound card. -- cgit v1.2.3