libavformat.3 4.9 KB

123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167
  1. .\" Automatically generated by Pod::Man 4.10 (Pod::Simple 3.35)
  2. .\"
  3. .\" Standard preamble:
  4. .\" ========================================================================
  5. .de Sp \" Vertical space (when we can't use .PP)
  6. .if t .sp .5v
  7. .if n .sp
  8. ..
  9. .de Vb \" Begin verbatim text
  10. .ft CW
  11. .nf
  12. .ne \\$1
  13. ..
  14. .de Ve \" End verbatim text
  15. .ft R
  16. .fi
  17. ..
  18. .\" Set up some character translations and predefined strings. \*(-- will
  19. .\" give an unbreakable dash, \*(PI will give pi, \*(L" will give a left
  20. .\" double quote, and \*(R" will give a right double quote. \*(C+ will
  21. .\" give a nicer C++. Capital omega is used to do unbreakable dashes and
  22. .\" therefore won't be available. \*(C` and \*(C' expand to `' in nroff,
  23. .\" nothing in troff, for use with C<>.
  24. .tr \(*W-
  25. .ds C+ C\v'-.1v'\h'-1p'\s-2+\h'-1p'+\s0\v'.1v'\h'-1p'
  26. .ie n \{\
  27. . ds -- \(*W-
  28. . ds PI pi
  29. . if (\n(.H=4u)&(1m=24u) .ds -- \(*W\h'-12u'\(*W\h'-12u'-\" diablo 10 pitch
  30. . if (\n(.H=4u)&(1m=20u) .ds -- \(*W\h'-12u'\(*W\h'-8u'-\" diablo 12 pitch
  31. . ds L" ""
  32. . ds R" ""
  33. . ds C` ""
  34. . ds C' ""
  35. 'br\}
  36. .el\{\
  37. . ds -- \|\(em\|
  38. . ds PI \(*p
  39. . ds L" ``
  40. . ds R" ''
  41. . ds C`
  42. . ds C'
  43. 'br\}
  44. .\"
  45. .\" Escape single quotes in literal strings from groff's Unicode transform.
  46. .ie \n(.g .ds Aq \(aq
  47. .el .ds Aq '
  48. .\"
  49. .\" If the F register is >0, we'll generate index entries on stderr for
  50. .\" titles (.TH), headers (.SH), subsections (.SS), items (.Ip), and index
  51. .\" entries marked with X<> in POD. Of course, you'll have to process the
  52. .\" output yourself in some meaningful fashion.
  53. .\"
  54. .\" Avoid warning from groff about undefined register 'F'.
  55. .de IX
  56. ..
  57. .nr rF 0
  58. .if \n(.g .if rF .nr rF 1
  59. .if (\n(rF:(\n(.g==0)) \{\
  60. . if \nF \{\
  61. . de IX
  62. . tm Index:\\$1\t\\n%\t"\\$2"
  63. ..
  64. . if !\nF==2 \{\
  65. . nr % 0
  66. . nr F 2
  67. . \}
  68. . \}
  69. .\}
  70. .rr rF
  71. .\"
  72. .\" Accent mark definitions (@(#)ms.acc 1.5 88/02/08 SMI; from UCB 4.2).
  73. .\" Fear. Run. Save yourself. No user-serviceable parts.
  74. . \" fudge factors for nroff and troff
  75. .if n \{\
  76. . ds #H 0
  77. . ds #V .8m
  78. . ds #F .3m
  79. . ds #[ \f1
  80. . ds #] \fP
  81. .\}
  82. .if t \{\
  83. . ds #H ((1u-(\\\\n(.fu%2u))*.13m)
  84. . ds #V .6m
  85. . ds #F 0
  86. . ds #[ \&
  87. . ds #] \&
  88. .\}
  89. . \" simple accents for nroff and troff
  90. .if n \{\
  91. . ds ' \&
  92. . ds ` \&
  93. . ds ^ \&
  94. . ds , \&
  95. . ds ~ ~
  96. . ds /
  97. .\}
  98. .if t \{\
  99. . ds ' \\k:\h'-(\\n(.wu*8/10-\*(#H)'\'\h"|\\n:u"
  100. . ds ` \\k:\h'-(\\n(.wu*8/10-\*(#H)'\`\h'|\\n:u'
  101. . ds ^ \\k:\h'-(\\n(.wu*10/11-\*(#H)'^\h'|\\n:u'
  102. . ds , \\k:\h'-(\\n(.wu*8/10)',\h'|\\n:u'
  103. . ds ~ \\k:\h'-(\\n(.wu-\*(#H-.1m)'~\h'|\\n:u'
  104. . ds / \\k:\h'-(\\n(.wu*8/10-\*(#H)'\z\(sl\h'|\\n:u'
  105. .\}
  106. . \" troff and (daisy-wheel) nroff accents
  107. .ds : \\k:\h'-(\\n(.wu*8/10-\*(#H+.1m+\*(#F)'\v'-\*(#V'\z.\h'.2m+\*(#F'.\h'|\\n:u'\v'\*(#V'
  108. .ds 8 \h'\*(#H'\(*b\h'-\*(#H'
  109. .ds o \\k:\h'-(\\n(.wu+\w'\(de'u-\*(#H)/2u'\v'-.3n'\*(#[\z\(de\v'.3n'\h'|\\n:u'\*(#]
  110. .ds d- \h'\*(#H'\(pd\h'-\w'~'u'\v'-.25m'\f2\(hy\fP\v'.25m'\h'-\*(#H'
  111. .ds D- D\\k:\h'-\w'D'u'\v'-.11m'\z\(hy\v'.11m'\h'|\\n:u'
  112. .ds th \*(#[\v'.3m'\s+1I\s-1\v'-.3m'\h'-(\w'I'u*2/3)'\s-1o\s+1\*(#]
  113. .ds Th \*(#[\s+2I\s-2\h'-\w'I'u*3/5'\v'-.3m'o\v'.3m'\*(#]
  114. .ds ae a\h'-(\w'a'u*4/10)'e
  115. .ds Ae A\h'-(\w'A'u*4/10)'E
  116. . \" corrections for vroff
  117. .if v .ds ~ \\k:\h'-(\\n(.wu*9/10-\*(#H)'\s-2\u~\d\s+2\h'|\\n:u'
  118. .if v .ds ^ \\k:\h'-(\\n(.wu*10/11-\*(#H)'\v'-.4m'^\v'.4m'\h'|\\n:u'
  119. . \" for low resolution devices (crt and lpr)
  120. .if \n(.H>23 .if \n(.V>19 \
  121. \{\
  122. . ds : e
  123. . ds 8 ss
  124. . ds o a
  125. . ds d- d\h'-1'\(ga
  126. . ds D- D\h'-1'\(hy
  127. . ds th \o'bp'
  128. . ds Th \o'LP'
  129. . ds ae ae
  130. . ds Ae AE
  131. .\}
  132. .rm #[ #] #H #V #F C
  133. .\" ========================================================================
  134. .\"
  135. .IX Title "doc::libavformat 3"
  136. .TH doc::libavformat 3 " " " " " "
  137. .\" For nroff, turn off justification. Always turn off hyphenation; it makes
  138. .\" way too many mistakes in technical documents.
  139. .if n .ad l
  140. .nh
  141. .SH "NAME"
  142. libavformat \- multimedia muxing and demuxing library
  143. .SH "DESCRIPTION"
  144. .IX Header "DESCRIPTION"
  145. The libavformat library provides a generic framework for multiplexing
  146. and demultiplexing (muxing and demuxing) audio, video and subtitle
  147. streams. It encompasses multiple muxers and demuxers for multimedia
  148. container formats.
  149. .PP
  150. It also supports several input and output protocols to access a media
  151. resource.
  152. .SH "SEE ALSO"
  153. .IX Header "SEE ALSO"
  154. \&\fBffmpeg\fR\|(1), \fBffplay\fR\|(1), \fBffprobe\fR\|(1),
  155. \&\fBffmpeg\-formats\fR\|(1), \fBffmpeg\-protocols\fR\|(1),
  156. \&\fBlibavutil\fR\|(3), \fBlibavcodec\fR\|(3)
  157. .SH "AUTHORS"
  158. .IX Header "AUTHORS"
  159. The FFmpeg developers.
  160. .PP
  161. For details about the authorship, see the Git history of the project
  162. (https://git.ffmpeg.org/ffmpeg), e.g. by typing the command
  163. \&\fBgit log\fR in the FFmpeg source directory, or browsing the
  164. online repository at <\fBhttps://git.ffmpeg.org/ffmpeg\fR>.
  165. .PP
  166. Maintainers for the specific components are listed in the file
  167. \&\fI\s-1MAINTAINERS\s0\fR in the source code tree.