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diff --git a/manual/appendix/file_formats.tex b/manual/appendix/file_formats.tex index 0c47975..e6bde41 100644 --- a/manual/appendix/file_formats.tex +++ b/manual/appendix/file_formats.tex @@ -104,101 +104,214 @@ \end{rbtabular} \opt{swcodec}{ + \chapter{Audio and metadata formats} \section{\label{ref:Supportedaudioformats}Supported audio formats} \subsection{Lossy Codecs} \begin{rbtabular}{\textwidth}{l>{\raggedright}p{6em}X}% {\textbf{Format} & \textbf{Extension} & \textbf{Notes}}{}{} - ATSC A/52 & \fname{.a52}, \fname{.ac3} & Supports downmixing for playback of 5.1 streams in stereo\tabularnewline - ADX & \fname{.adx} & \tabularnewline - Advanced Audio Coding & \fname{.m4a}, \fname{.m4b}, \fname{.mp4} & \tabularnewline - MPEG audio & \fname{.mp1}, \fname{.mpa}, \fname{.mp2}, \fname{.mp3} & \tabularnewline - Musepack & \fname{.mpc} & Supports SV7 and SV8 in mono/stereo \tabularnewline - OGG/Vorbis & \fname{.ogg}, \fname{.oga} & Playback of some old ``floor 0'' files may fail\tabularnewline - Sony Audio & \fname{.oma}, \fname{.aa3} & \tabularnewline - RealAudio & \fname{.rm}, \fname{.ra}, \fname{.rmvb} & \tabularnewline - Speex & \fname{.spx} & \tabularnewline - Dialogic telephony type & \fname{.vox} & \tabularnewline - Windows Media Audio Standard & \fname{.wma}, \fname{.wmv}, \fname{.asf} & \tabularnewline - Windows Media Audio Professional & \fname{.wma}, \fname{.wmv}, \fname{.asf} & \tabularnewline + ATSC A/52 (AC3) + & \fname{.a52}, \fname{.ac3}, \fname{.rm}, \fname{.ra}, \fname{.rmvb} + & Supports downmixing for playback of 5.1 streams in stereo\\ + ADX + & \fname{.adx} + & \\ + Advanced Audio Coding + & \fname{.m4a}, \fname{.m4b}, \fname{.mp4}, \fname{.rm}, \fname{.ra}, \fname{.rmvb} + \nopt{clipv1,c200v2}{ + & Supports AAC-LC, -HEv1, and -HEv2 profiles\\} + \opt{clipv1,c200v2}{ % low memory targets (CODEC_SIZE <= 512 KB) + & Supports AAC-LC profile\\} + MPEG audio + & \fname{.mpa}, \fname{.mp1}, \fname{.mp2}, \fname{.mp3} + & MPEG 1/2/2.5 Layer 1/2/3\\ + Musepack + & \fname{.mpc} + & Supports SV7 and SV8 in mono/stereo \\ + OGG/Vorbis + & \fname{.ogg}, \fname{.oga} + & Playback of some old ``floor 0'' files may fail on low memory targets. + Files with album art larger than available RAM will be skipped. + Chained Ogg files are not supported.\\ + Sony Audio + & \fname{.oma}, \fname{.aa3}, \fname{.rm}, \fname{.ra}, \fname{.rmvb} + & Supports ATRAC3\\ + RealAudio + & \fname{.rm}, \fname{.ra}, \fname{.rmvb} + & Supports RealAudio G2 (Cook)\\ + Speex + & \fname{.spx} + & \\ + Dialogic telephony type + & \fname{.vox} + & \\ + Windows Media Audio Standard + & \fname{.wma}, \fname{.wmv}, \fname{.asf} + & \\ + Windows Media Audio Professional + & \fname{.wma}, \fname{.wmv}, \fname{.asf} + & \\ \end{rbtabular} + + \note{AAC-HE profiles might not play in realtime on all devices due to CPU + performance requirements.} \subsection{Lossless Codecs} \begin{rbtabular}{\textwidth}{lp{6em}X}% {\textbf{Format} & \textbf{Extension} & \textbf{Notes}}{}{} - Audio Interchange File Format & \fname{.aif}, \fname{.aiff} & AIFF supports following formats:\\ - & & Linear PCM 8/16/24/32 bit\\ - & & IEEE float 32/64 bit\\ - & & ITU-T G.711 a-law/$\mu$-law\\ - & & QuickTime IMA ADPCM\\ - \opt{gigabeatf,iriverh100,iriverh300,iaudiox5,iaudiom5,iaudiom3,ipodnano2g,clipv1}{ - Monkey's Audio & \fname{.ape}, \fname{.mac} & -c1000 to -c3000 - files decode fast enough to be useful.} - \opt{gigabeats}{ - Monkey's Audio & \fname{.ape}, \fname{.mac} & } - \nopt{ipodnano2g}{ - \opt{ipod,iriverh10,iriverh10_5gb,mrobe100,sansa,vibe500}{ - Monkey's Audio & \fname{.ape}, \fname{.mac} & Only -c1000 files decode fast - enough to be useful.} - } - \\ - Sun Audio & \fname{.au}, \fname{.snd} & Sun Audio supports following formats: \\ - & & Linear PCM 8/16/24/32 bit \\ - & & IEEE float 32/64 bit\\ - & & ITU-T G.711 a-law/$\mu$-law\\ - Free Lossless Audio & \fname{.flac} & \\ - Apple Lossless & \fname{.m4a}, \fname{.mp4} & \\ - Shorten & \fname{.shn} & Seeking not supported.\\ - True Audio & \fname{.tta} & \\ - Wave64 & \fname{.w64} & Wave/Wave64 supports following formats: \\ - Waveform audio format & \fname{.wav} & Linear PCM 8/16/24/32 bit\\ - & & IEEE float 32/64 bit\\ - & & ITU-T G.711 a-law/$\mu$-law\\ - & & Microsoft ADPCM\\ - & & Intel DVI ADPCM(IMA ADPCM) 2/3/4/5 bit\\ - & & Dialogic OKI ADPCM\\ - & & YAMAHA ADPCM\\ - & & Adobe SWF ADPCM\\ - Wavpack & \fname{.wv} & \\ + Audio Interchange File Format + & \fname{.aif}, \fname{.aiff} + & Linear PCM 8/16/24/32 bit, IEEE float 32/64 bit, ITU-T G.711 a-law/$\mu$-law, + QuickTime IMA ADPCM\\ + Monkey's Audio + & \fname{.ape}, \fname{.mac} + \opt{gigabeatf,iriverh100,iriverh300,iaudiox5,iaudiom5,iaudiom3,ipodnano2g,clipv1}{ + & -c1000 to -c3000 files decode fast enough to be useful.\\} + \opt{gigabeats}{ + & \\} + \nopt{ipodnano2g}{\opt{ipod,iriverh10,iriverh10_5gb,mrobe100,sansa,vibe500}{ + & Only -c1000 files decode fast enough to be useful.\\}} + Sun Audio + & \fname{.au}, \fname{.snd} + & Linear PCM 8/16/24/32 bit, IEEE float 32/64 bit, ITU-T G.711 a-law/$\mu$-law\\ + Free Lossless Audio + & \fname{.flac} + & \\ + Apple Lossless + & \fname{.m4a}, \fname{.mp4} + & \\ + Shorten + & \fname{.shn} + & Seeking not supported.\\ + True Audio + & \fname{.tta} + & \\ + Wave64 + & \fname{.w64} + & Supports same formats as Waveform audio format.\\ + Waveform audio format + & \fname{.wav} + & Linear PCM 8/16/24/32 bit, IEEE float 32/64 bit, ITU-T G.711 a-law/$\mu$-law, + Microsoft ADPCM, Intel DVI ADPCM (IMA ADPCM) 2/3/4/5 bit, Dialogic OKI ADPCM, + YAMAHA ADPCM, Adobe SWF ADPCM\\ + Wavpack + & \fname{.wv} + & \\ \end{rbtabular} \subsection{Other Codecs} \begin{rbtabular}{\textwidth}{l>{\raggedright}p{6em}X}% {\textbf{Format} & \textbf{Extension} & \textbf{Notes}}{}{} - Atari Sound Format & \fname{.cmc}, \fname{.cm3}, \fname{.cmr}, \fname{.cms}, - \fname{.dmc}, \fname{.dlt}, \fname{.mpt}, \fname{.mpd} & \tabularnewline - Synthetic music Mobile Application Format & \fname{.mmf} & Supports PCM/ADPCM only \tabularnewline - MOD & \fname{.mod} & \tabularnewline - NES Sound Format & \fname{.nsf}, \fname{.nsfe} & \tabularnewline - Atari SAP & \fname{.sap} & \tabularnewline - Sound Interface Device & \fname{.sid} & \tabularnewline - SPC700 & \fname{.spc} & \tabularnewline + Atari Sound Format + & \fname{.cmc}, \fname{.cm3}, \fname{.cmr}, \fname{.cms}, \fname{.dmc}, + \fname{.dlt}, \fname{.mpt}, \fname{.mpd} + & \\ + Synthetic music Mobile Application Format + & \fname{.mmf} + & PCM/ADPCM only \\ + MOD + & \fname{.mod} + & \\ + NES Sound Format + & \fname{.nsf}, \fname{.nsfe} + & Progress bar and seek use tracks instead of seconds.\\ + Atari SAP + & \fname{.sap} + & \\ + Sound Interface Device + & \fname{.sid} + & \\ + SPC700 + & \fname{.spc} + & \\ \end{rbtabular} \section{\label{ref:SupportedMetadata}Supported metadata tags} Rockbox supports different metadata formats. In general those tag formats - are ID3 (v1 and v2), APE (v1 and v2), Vorbis, MP4 and ASF. Few codecs use - codec specific tags, several codecs do not use any tags yet. The following - table gives an overview about what tag types rockbox supports for which - audio file extension. + are ID3 (v1.0, v1.1, v2.2, v2.3 and v2.4), APE (v1 and v2), Vorbis, MP4 and + ASF. Few codecs use codec specific tags, several codecs do not use any tags + yet. The following table gives an overview about what tag types rockbox + supports for which audio file extension. \note{There is always only \emph{one} tag type supported for each file extension.} \begin{rbtabular}{\textwidth}{lX}% - {\textbf{Extension} & \textbf{Tag type}}{}{} - \fname{.mp1}, \fname{.mpa}, \fname{.mp2}, \fname{.mp3}, - \fname{.rm}, \fname{.ra}, \fname{.rmvb}, \fname{.tta} & ID3 \\ - \fname{.mpc}, \fname{.ape}, \fname{.mac}, \fname{.wv} & APE \\ - \fname{.ogg}, \fname{.oga}, \fname{.spx}, \fname{.flac} & Vorbis \\ - \fname{.m4a}, \fname{.m4b}, \fname{.mp4} & MP4 \\ - \fname{.wma}, \fname{.wmv}, \fname{.asf} & ASF \\ - \fname{.mmf}, \fname{.mod}, \fname{.nsf}, \fname{.nsfe}, - \fname{.sap}, \fname{.sid}, \fname{.spc} & Codec specific \\ - \fname{.a52}, \fname{.ac3}, \fname{.adx}, \fname{.oma}, - \fname{.aa3}, \fname{.aif}, \fname{.aiff}, \fname{.au} & None \\ - \fname{.snd}, \fname{.shn}, \fname{.vox}, \fname{.w64}, - \fname{.wav}, \fname{.cmc}, \fname{.cm3}, \fname{.cmr} & None \\ - \fname{.cms}, \fname{.dmc}, \fname{.dlt}, \fname{.mpt}, - \fname{.mpd} & None \\ + {\textbf{Tag type} & \textbf{File extension}}{}{} + ID3 & \fname{.mp1}, \fname{.mpa}, \fname{.mp2}, \fname{.mp3}, + \fname{.rm}, \fname{.ra}, \fname{.rmvb}, \fname{.tta} \\ + APE & \fname{.mpc}, \fname{.ape}, \fname{.mac}, \fname{.wv} \\ + Vorbis & \fname{.ogg}, \fname{.oga}, \fname{.spx}, \fname{.flac} \\ + MP4 & \fname{.m4a}, \fname{.m4b}, \fname{.mp4} \\ + ASF & \fname{.wma}, \fname{.wmv}, \fname{.asf} \\ + Codec specific & \fname{.mmf}, \fname{.mod}, \fname{.nsf}, \fname{.nsfe}, + \fname{.sap}, \fname{.sid}, \fname{.spc} \\ + None & \fname{.a52}, \fname{.ac3}, \fname{.adx}, \fname{.oma}, + \fname{.aa3}, \fname{.aif}, \fname{.aiff}, \fname{.au}, + \fname{.snd}, \fname{.shn}, \fname{.vox}, \fname{.w64}, + \fname{.wav}, \fname{.cmc}, \fname{.cm3}, \fname{.cmr}, + \fname{.cms}, \fname{.dmc}, \fname{.dlt}, \fname{.mpt}, + \fname{.mpd} \\ + \end{rbtabular} + + \subsection{Featureset for generic metadata tags} + \begin{rbtabular}{\textwidth}{lccccX}% + {\textbf{Feature} & \textbf{ID3} & \textbf{APE} & \textbf{Vorbis} & + \textbf{MP4} & \textbf{ASF}}{}{} + Embedded albumart \fname{.bmp} & & & & & \\ + Embedded albumart \fname{.jpg} & x & & & x & \\ + Embedded albumart \fname{.png} & & & & & \\ + Replaygain information & x & x & x & x & x \\ + Title (string) & x & x & x & x & x \\ + Artist (string) & x & x & x & x & x \\ + Album (string) & x & x & x & x & x \\ + Genre (string) & x & x & x & x & x \\ + Disc (string or number) & x & x & x & x & \\ + Track (string or number) & x & x & x & x & x \\ + Year (string or number) & x & x & x & x & x \\ + Composer (string) & & x & x & x & x \\ + Comment (string) & x & x & x & x & x \\ + Albumartist (string) & x & x & x & x & x \\ + Grouping (string) & & x & x & x & \\ + \end{rbtabular} + + \subsection{Featureset for codec specific metadata} + \begin{rbtabular}{\textwidth}{lX}% + {\textbf{Feature} & \textbf{Codec specific metadata (file extension)}}{}{} + Embedded \fname{.bmp} & None \\ + Embedded \fname{.jpg} & None \\ + Embedded \fname{.png} & None \\ + Replaygain & \fname{.mpc}\\ + Title & \fname{.tta}, \fname{.spc}, \fname{.mmf}, \fname{.sid}, + \fname{.rm}, \fname{.ra}, \fname{.rmvb}, \fname{.nsf}, + \fname{.nsfe}, \fname{.mod}, \fname{.sap} \\ + Artist & \fname{.tta}, \fname{.spc}, \fname{.mmf}, \fname{.sid}, + \fname{.rm}, \fname{.ra}, \fname{.rmvb}, \fname{.nsf}, + \fname{.nsfe}, \fname{.sap} \\ + Album & \fname{.spc}, \fname{.sid}, \fname{.nsf}, \fname{.nsfe} \\ + Genre & \fname{.tta}, \fname{.spc}, \fname{.sap} \\ + Disc & \fname{.tta} \\ + Track & \fname{.tta} \\ + Year & \fname{.spc}, \fname{.sid}, \fname{.sap} \\ + Composer & \fname{.mmf} \\ + Comment & \fname{.spc}, \fname{.rm}, \fname{.ra}, \fname{.rmvb} \\ + Albumartist & None \\ + Grouping & None \\ \end{rbtabular} + + \subsection{Limitations of metadata handling} + \begin{enumerate} + \item Multiple tags (e.g. for Genre) are not supported. The first tag + item of a set of multiple tags is used. + \item Only one tag type is supported for each audio format. + \nopt{clipv1,c200v2}{ + \item Overall there are 900 bytes available to load metadata strings. + \item The maximum size of each metadata item (e.g. Artists) is limited + to 240 bytes. + } + \opt{clipv1,c200v2}{ + \item Overall there are 300 bytes available to load metadata strings. + \item The maximum size of each metadata item (e.g. Artists) is limited + to 90 bytes. + } + \end{enumerate} } |