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Diffstat (limited to 'doc/faq.texi')
| -rw-r--r-- | doc/faq.texi | 18 |
1 files changed, 9 insertions, 9 deletions
diff --git a/doc/faq.texi b/doc/faq.texi index 9497903b5c..40b7c84bcb 100644 --- a/doc/faq.texi +++ b/doc/faq.texi @@ -53,7 +53,7 @@ Use @file{-} as filename. @section Why does ffmpeg not decode audio in VOB files ? The audio is AC3 (a.k.a. A/52). AC3 decoding is an optional component in ffmpeg -as the component that handles AC3 decoding (liba52) is currently released under +as the component that handles AC3 decoding (liba52) is currently released under the GPL. If you have liba52 installed on your system, enable AC3 decoding with @code{./configure --enable-a52}. Take care: by enabling AC3, you automatically change the license of libavcodec from @@ -61,7 +61,7 @@ LGPL to GPL. @section Which codecs are supported by Windows ? -Windows does not support standard formats like MPEG very well, unless you +Windows does not support standard formats like MPEG very well, unless you install some additional codecs The following list of video codecs should work on most Windows systems: @@ -79,8 +79,8 @@ only if you have some MPEG-4 codec installed like ffdshow or XviD @item mpeg1 .mpg only @end table -Note, ASF files often have .wmv or .wma extensions in Windows. It should also -be mentioned that Microsoft claims a patent on the ASF format, and may sue +Note, ASF files often have .wmv or .wma extensions in Windows. It should also +be mentioned that Microsoft claims a patent on the ASF format, and may sue or threaten users who create ASF files with non-Microsoft software. It is strongly advised to avoid ASF where possible. @@ -95,7 +95,7 @@ if some MP3 codec like LAME is installed @section Why does the chrominance data seem to be sampled at a different time from the luminance data on bt8x8 captures on Linux? -This is a well-known bug in the bt8x8 driver. For 2.4.26 there is a patch at +This is a well-known bug in the bt8x8 driver. For 2.4.26 there is a patch at (@url{http://www.mplayerhq.hu/~michael/bttv-420-2.4.26.patch}). This may also apply cleanly to other 2.4-series kernels. @@ -132,8 +132,8 @@ Both XviD and DivX (version 4+) are implementations of the ISO MPEG-4 standard (note that there are many other coding formats that use this same standard). Thus, use '-vcodec mpeg4' to encode these formats. The default fourcc stored in an MPEG-4-coded file will be 'FMP4'. If you want -a different fourcc, use the '-vtag' option. E.g., '-vtag xvid' will -force the fourcc 'xvid' to be stored as the video fourcc rather than the +a different fourcc, use the '-vtag' option. E.g., '-vtag xvid' will +force the fourcc 'xvid' to be stored as the video fourcc rather than the default. @chapter Development @@ -149,7 +149,7 @@ it implemented is to undertake the task yourself. @section Are there examples illustrating how to use the FFmpeg libraries, particularly libavcodec and libavformat ? Yes. Read the Developers Guide of the FFmpeg documentation. Alternatively, -examine the source code for one of the many open source projects that +examine the source code for one of the many open source projects that already incorporate ffmpeg at (@url{projects.php}). @section Can you support my C compiler XXX ? @@ -174,7 +174,7 @@ terms of portability. @section Why not rewrite ffmpeg in object-oriented C++ ? ffmpeg is already organized in a highly modular manner and does not need to -be rewritten in a formal object language. Further, many of the developers +be rewritten in a formal object language. Further, many of the developers favor straight C; it works for them. For more arguments on this matter, read "Programming Religion" at (@url{http://lkml.org/faq/lkmlfaq-15.html}). |