openharmony/third_party_ffmpeg
1
0
Fork 0
mirror of https://gitee.com/openharmony/third_party_ffmpeg synced 2024-11-23 19:30:05 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

faq: use relative links to own documentation

Browse Source 
This way locally installed documentation refers to itself instead of the
website.

Bud-Id: https://bugs.debian.org/841501
Reviewed-by: James Almer <jamrial@gmail.com>
Signed-off-by: Andreas Cadhalpun <Andreas.Cadhalpun@googlemail.com>
This commit is contained in:
Andreas Cadhalpun 2016-10-22 20:12:30 +02:00
parent 89ec4adad6
commit 2506a7cc09
1 changed files with 7 additions and 7 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

14
doc/faq.texi
View File

@ -311,18 +311,18 @@ invoking ffmpeg with several @option{-i} options.
For audio, to put all channels together in a single stream (example: two
mono streams into one stereo stream): this is sometimes called to
@emph{merge} them, and can be done using the
@url{https://ffmpeg.org/ffmpeg-filters.html#amerge, @code{amerge}} filter.
@url{ffmpeg-filters.html#amerge, @code{amerge}} filter.
@item
For audio, to play one on top of the other: this is called to @emph{mix}
them, and can be done by first merging them into a single stream and then
using the @url{https://ffmpeg.org/ffmpeg-filters.html#pan, @code{pan}} filter to mix
using the @url{ffmpeg-filters.html#pan, @code{pan}} filter to mix
the channels at will.
@item
For video, to display both together, side by side or one on top of a part of
the other; it can be done using the
@url{https://ffmpeg.org/ffmpeg-filters.html#overlay, @code{overlay}} video filter.
@url{ffmpeg-filters.html#overlay, @code{overlay}} video filter.
@end itemize
@ -333,19 +333,19 @@ There are several solutions, depending on the exact circumstances.
@subsection Concatenating using the concat @emph{filter}
FFmpeg has a @url{https://ffmpeg.org/ffmpeg-filters.html#concat,
FFmpeg has a @url{ffmpeg-filters.html#concat,
@code{concat}} filter designed specifically for that, with examples in the
documentation. This operation is recommended if you need to re-encode.
@subsection Concatenating using the concat @emph{demuxer}
FFmpeg has a @url{https://www.ffmpeg.org/ffmpeg-formats.html#concat,
FFmpeg has a @url{ffmpeg-formats.html#concat,
@code{concat}} demuxer which you can use when you want to avoid a re-encode and
your format doesn't support file level concatenation.
@subsection Concatenating using the concat @emph{protocol} (file level)
FFmpeg has a @url{https://ffmpeg.org/ffmpeg-protocols.html#concat,
FFmpeg has a @url{ffmpeg-protocols.html#concat,
@code{concat}} protocol designed specifically for that, with examples in the
documentation.
@ -485,7 +485,7 @@ scaling adjusts the SAR to keep the DAR constant.
If you want to stretch, or “unstretch”, the image, you need to override the
information with the
@url{https://ffmpeg.org/ffmpeg-filters.html#setdar_002c-setsar, @code{setdar or setsar filters}}.
@url{ffmpeg-filters.html#setdar_002c-setsar, @code{setdar or setsar filters}}.
Do not forget to examine carefully the original video to check whether the
stretching comes from the image or from the aspect ratio information.