source: multimedia/videoutils/ffmpeg.xml@ a5c54e0

10.0 10.1 11.0 11.1 11.2 11.3 12.0 12.1 7.10 7.4 7.5 7.6 7.6-blfs 7.6-systemd 7.7 7.8 7.9 8.0 8.1 8.2 8.3 8.4 9.0 9.1 basic bdubbs/svn elogind gnome kde5-13430 kde5-14269 kde5-14686 kea ken/TL2024 ken/inkscape-core-mods ken/tuningfonts krejzi/svn lazarus lxqt nosym perl-modules plabs/newcss plabs/python-mods python3.11 qt5new rahul/power-profiles-daemon renodr/vulkan-addition systemd-11177 systemd-13485 trunk upgradedb xry111/intltool xry111/llvm18 xry111/soup3 xry111/test-20220226 xry111/xf86-video-removal
Last change on this file since a5c54e0 was dda3ff99, checked in by Igor Živković <igor@…>, 11 years ago

FFmpeg-2.0

git-svn-id: svn://svn.linuxfromscratch.org/BLFS/trunk/BOOK@11401 af4574ff-66df-0310-9fd7-8a98e5e911e0
  • Property mode set to 100644
File size: 22.5 KB
Line 
1<?xml version="1.0" encoding="ISO-8859-1"?>
2<!DOCTYPE sect1 PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
3 "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
4 <!ENTITY % general-entities SYSTEM "../../general.ent">
5 %general-entities;
6
7 <!ENTITY ffmpeg-download-http
8 "http://ffmpeg.org/releases/ffmpeg-&ffmpeg-version;.tar.bz2">
9 <!ENTITY ffmpeg-download-ftp " ">
10 <!ENTITY ffmpeg-md5sum "13a0feb74474f89052f6b8ba1bce46be">
11 <!ENTITY ffmpeg-size "6.0 MB">
12 <!ENTITY ffmpeg-buildsize "100 MB">
13 <!ENTITY ffmpeg-time "2.6 SBU">
14]>
15
16<sect1 id="ffmpeg" xreflabel="FFmpeg-&ffmpeg-version;">
17 <?dbhtml filename="ffmpeg.html"?>
18
19 <sect1info>
20 <othername>$LastChangedBy$</othername>
21 <date>$Date$</date>
22 </sect1info>
23
24 <title>FFmpeg-&ffmpeg-version;</title>
25
26 <indexterm zone="ffmpeg">
27 <primary sortas="a-FFmpeg">FFmpeg</primary>
28 </indexterm>
29
30 <sect2 role="package">
31 <title>Introduction to FFmpeg</title>
32
33 <para>
34 <application>FFmpeg</application> is a solution to record, convert and
35 stream audio and video. It is a very fast video and audio converter and it
36 can also acquire from a live audio/video source. Designed to be intuitive,
37 the command-line interface (<command>ffmpeg</command>) tries to figure out
38 all the parameters, when possible. <application>FFmpeg</application> can
39 also convert from any sample rate to any other, and resize video on the
40 fly with a high quality polyphase filter.
41 <application>FFmpeg</application> can use a Video4Linux compatible video
42 source and any Open Sound System audio source.
43 </para>
44
45 &lfs73_checked;
46
47 <bridgehead renderas="sect3">Package Information</bridgehead>
48 <itemizedlist spacing="compact">
49 <listitem>
50 <para>
51 Download (HTTP): <ulink url="&ffmpeg-download-http;"/>
52 </para>
53 </listitem>
54 <listitem>
55 <para>
56 Download (FTP): <ulink url="&ffmpeg-download-ftp;"/>
57 </para>
58 </listitem>
59 <listitem>
60 <para>
61 Download MD5 sum: &ffmpeg-md5sum;
62 </para>
63 </listitem>
64 <listitem>
65 <para>
66 Download size: &ffmpeg-size;
67 </para>
68 </listitem>
69 <listitem>
70 <para>
71 Estimated disk space required: &ffmpeg-buildsize;
72 </para>
73 </listitem>
74 <listitem>
75 <para>
76 Estimated build time: &ffmpeg-time;
77 </para>
78 </listitem>
79 </itemizedlist>
80
81 <bridgehead renderas="sect3">FFmpeg Dependencies</bridgehead>
82
83 <!-- All dependencies are listed in the order as they are displayed in
84 the configure script. This makes it easy for readers (and editors)
85 to match up the dependency list with what is required or desired. -->
86
87 <bridgehead renderas="sect4">Recommended</bridgehead>
88 <para role="recommended">
89 <xref linkend="alsa-lib"/>,
90 <xref linkend="faac"/>,
91 <xref linkend="freetype2"/>,
92 <xref linkend="lame"/>,
93 <xref linkend="openjpeg"/>,
94 <xref linkend="speex"/>,
95 <xref linkend="libtheora"/>,
96 <xref linkend="libvorbis"/>,
97 <xref linkend="libvpx"/>,
98 <xref linkend="xvid"/>,
99 <xref linkend="openssl"/>,
100 <xref linkend="sdl"/>,
101 <xref linkend="xorg7-lib"/>,
102 <xref linkend="yasm"/>
103 </para>
104
105 <bridgehead renderas="sect4">Optional</bridgehead>
106 <para role="optional">
107 <xref linkend="fontconfig"/>,
108 <xref linkend="gnutls"/>,
109 <xref linkend="pulseaudio"/>,
110 <ulink url="http://www.piksel.org/frei0r">frei0r</ulink>,
111 <ulink url="http://tipok.org.ua/node/17">libaacplus</ulink>,
112 <ulink url="http://code.google.com/p/libass/">libass</ulink>,
113 <ulink url="http://www.videolan.org/developers/libbluray.html">libbluray</ulink>,
114 <ulink url="http://caca.zoy.org/">libcaca</ulink>,
115 <ulink url="http://www.celt-codec.org/">libcelt</ulink>,
116 <ulink url="http://ftp.gnu.org/pub/gnu/libcdio/">libcdio</ulink>,
117 <ulink url="http://sourceforge.net/projects/libdc1394">libdc1394</ulink>,
118 <ulink url="http://sourceforge.net/projects/opencore-amr/">fdk-aac</ulink>,
119 <ulink url="http://www.speech.cs.cmu.edu/flite/">Flite</ulink>,
120 <ulink url="http://www.quut.com/gsm/">GSM</ulink>,
121 <ulink url="https://ieee1394.wiki.kernel.org/index.php/Libraries">libiec61883</ulink>,
122 <ulink url="https://github.com/dekkers/libilbc">libilbc</ulink>,
123 <ulink url="http://sourceforge.net/projects/modplug-xmms/">libmodplug</ulink>,
124 <ulink url="http://svn.mplayerhq.hu/nut/src/trunk/">libnut</ulink> (SVN checkout),
125 <ulink url="http://sourceforge.net/projects/opencore-amr">OpenCore AMR</ulink>,
126 <ulink url="http://opencv.org/">OpenCV</ulink>,
127 <ulink url="http://www.opus-codec.org/">Opus</ulink>,
128 <ulink url="http://sourceforge.net/projects/librtmp">librtmp</ulink>,
129 <ulink url="http://diracvideo.org/">Schroedinger</ulink>,
130 <ulink url="http://www.twolame.org/">TwoLAME</ulink>,
131 <ulink url="http://linuxtv.org/downloads/v4l-utils/">Video4Linux</ulink>,
132 <ulink url="http://sourceforge.net/projects/opencore-amr/files/vo-aacenc/">vo-aaenc</ulink>,
133 <ulink url="http://sourceforge.net/projects/opencore-amr/files/vo-amrwbenc/">vo-amrwbenc</ulink>,
134 <ulink url="http://www.videolan.org/developers/x264.html">x264</ulink>,
135 <ulink url="http://xavs.sourceforge.net/">libxavs</ulink> (SVN checkout),
136 <ulink url="http://kcat.strangesoft.net/openal-releases/">OpenAL</ulink>,
137 <ulink url="http://www.khronos.org/opencl/">OpenCL</ulink>, and
138 <ulink url="http://www.nongnu.org/texi2html">texi2html</ulink> (to build HTML documentation)
139 </para>
140
141 <bridgehead renderas="sect4">Optional (For Hardware Video Decoding)</bridgehead>
142 <para role="optional">
143 <ulink url="http://www.freedesktop.org/wiki/Software/vaapi">VA-API (libva)</ulink>
144 with corresponding drivers, including:
145 <ulink url="http://www.freedesktop.org/software/vaapi/releases/libva-intel-driver/">
146 Intel Driver (i965 chipsets only)</ulink>,
147 <ulink url="http://www.splitted-desktop.com/static/libva/xvba-video/">
148 XVBA Driver for AMD Radeon Cards</ulink>, and
149 <ulink url="http://www.freedesktop.org/software/vaapi/releases/libva-vdpau-driver/">
150 VDPAU Driver for VDPAU capable Cards</ulink>
151 (requires <ulink url="http://cgit.freedesktop.org/~aplattner/libvdpau/">
152 libvdpau</ulink>)
153 </para>
154
155 <para condition="html" role="usernotes">
156 User Notes: <ulink url="&blfs-wiki;/ffmpeg"/>
157 </para>
158 </sect2>
159
160 <sect2 role="installation">
161 <title>Installation of FFmpeg</title>
162
163 <para>
164 If <application>Xorg</application> is installed in a prefix other
165 than <filename class='directory'>/usr</filename>, the build will fail. Fix
166 this by issuing the following command:
167 </para>
168
169<screen><userinput>export LIBRARY_PATH=$XORG_PREFIX/lib</userinput></screen>
170
171 <para>
172 Install <application>FFmpeg</application> by running the following
173 commands:
174 </para>
175
176 <!-- The confiure optinos are listed in the order as they are displayed in
177 the configure script. This makes it easy for readers (and editors)
178 to match up the options with what is required or desired. -->
179
180<screen><userinput>sed -i 's/-lflite"/-lflite -lasound"/' configure &amp;&amp;
181./configure --prefix=/usr \
182 --enable-gpl \
183 --enable-version3 \
184 --enable-nonfree \
185 --disable-static \
186 --enable-shared \
187 --enable-x11grab \
188 --enable-libfaac \
189 --enable-libfreetype \
190 --enable-libmp3lame \
191 --enable-libopenjpeg \
192 --enable-libspeex \
193 --enable-libtheora \
194 --enable-libvorbis \
195 --enable-libvpx \
196 --enable-libxvid \
197 --enable-openssl \
198 --disable-debug &amp;&amp;
199make &amp;&amp;
200gcc tools/qt-faststart.c -o tools/qt-faststart &amp;&amp;
201unset LIBRARY_PATH</userinput></screen>
202
203 <para>
204 HTML documentation was built in the previous step if
205 <ulink url="http://www.nongnu.org/texi2html">texi2html</ulink> is
206 installed. If the HTML was built (check for any
207 <filename class="extension">.html</filename> files in the
208 <filename class="directory">doc</filename> directory) and you have
209 <xref linkend="texlive"/> installed and wish to build PDF and
210 Postscript versions of the documentation, issue the following commands:
211 </para>
212
213<screen><userinput>pushd doc &amp;&amp;
214for DOCNAME in `basename -s .html *.html`
215do
216 texi2pdf -b $DOCNAME.texi &amp;&amp;
217 texi2dvi -b $DOCNAME.texi &amp;&amp;
218 dvips -o $DOCNAME.ps \
219 $DOCNAME.dvi &amp;&amp;
220done &amp;&amp;
221popd &amp;&amp;
222unset DOCNAME</userinput></screen>
223
224 <para>
225 If you have <xref linkend="doxygen"/> installed and wish to create the API
226 documentation (takes about 300 MB of space), issue the command
227 <command>doxygen doc/Doxyfile</command>.
228 </para>
229
230 <para>
231 To properly test the installation you must have <xref linkend="rsync"/>
232 installed and follow the instructions for the
233 <ulink url="http://ffmpeg.org/fate.html">
234 FFmpeg Automated Testing Environment</ulink>. Note that the BLFS team has
235 not performed this regression testing.
236 </para>
237
238 <para>
239 Now, as the <systemitem class="username">root</systemitem> user:
240 </para>
241
242<screen role="root"><userinput>make install &amp;&amp;
243install -v -m755 tools/qt-faststart /usr/bin &amp;&amp;
244install -v -m755 -d /usr/share/doc/ffmpeg-&ffmpeg-version; &amp;&amp;
245install -v -m644 doc/*.txt \
246 /usr/share/doc/ffmpeg-&ffmpeg-version;</userinput></screen>
247
248 <para>
249 If HTML documentation was built, issue the following command to install it:
250 </para>
251
252<screen role="root"><userinput>install -v -m644 doc/*.html \
253 /usr/share/doc/ffmpeg-&ffmpeg-version;</userinput></screen>
254
255 <para>
256 If you used <command>doxygen</command> to create the API documentation,
257 install it (another 300 MB of space) by issuing the following commands
258 as the <systemitem class="username">root</systemitem> user:
259 </para>
260
261<screen role="root"><userinput>install -v -m755 -d /usr/share/doc/ffmpeg-&ffmpeg-version;/api &amp;&amp;
262install -v -m644 doc/doxy/html/* \
263 /usr/share/doc/ffmpeg-&ffmpeg-version;/api</userinput></screen>
264
265 </sect2>
266
267 <sect2 role="commands">
268 <title>Command Explanations</title>
269
270 <para>
271 <command>sed -i ...</command>: This command adds the
272 <application>ALSA</application> library to the
273 <application>Flite</application> <envar>LDFLAGS</envar> variable and
274 enables the discovery of <application>Flite</application>.
275 </para>
276
277 <para>
278 <parameter>--enable-gpl</parameter>: Enables the use of GPL code and
279 permits support for postprocessing, swscale and many other features.
280 </para>
281
282 <para>
283 <parameter>--enable-version3</parameter>: Enables the use of (L)GPL
284 version 3 code.
285 </para>
286
287 <para>
288 <parameter>--enable-nonfree</parameter>: Enables the use of nonfree
289 code. Note that the resulting libraries and binaries will be
290 unredistributable.
291 </para>
292
293 <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
294 href="../../xincludes/static-libraries.xml"/>
295
296 <para>
297 <parameter>--enable-shared</parameter>: Enables building shared libraries,
298 otherwise only static libraries are built and installed.
299 </para>
300
301 <para>
302 <parameter>--enable-x11grab</parameter>: Enables X11 grabbing.
303 </para>
304
305 <para>
306 <parameter>--enable-libfaac</parameter>: Enables AAC encoding via
307 <filename class="libraryfile">libfaac</filename>.
308 </para>
309
310 <para>
311 <parameter>--enable-libfreetype</parameter>: Enables the use of
312 <filename class="libraryfile">libfreetype</filename>.
313 </para>
314
315 <para>
316 <parameter>--enable-libmp3lame</parameter>: Enables MP3 encoding via
317 <filename class="libraryfile">libmp3lame</filename>.
318 </para>
319
320 <para>
321 <parameter>--enable-libopenjpeg</parameter>: Enables JPEG 2000 de/encoding
322 via <filename class="libraryfile">libopenjpeg</filename>.
323 </para>
324
325 <para>
326 <parameter>--enable-libspeex</parameter>: Enables
327 <application>Speex</application> de/encoding
328 via <filename class="libraryfile">libspeex</filename>.
329 </para>
330
331 <para>
332 <parameter>--enable-libtheora</parameter>: Enables
333 <application>Theora</application> encoding
334 via <filename class="libraryfile">libtheora</filename>.
335 </para>
336
337 <para>
338 <parameter>--enable-libvorbis</parameter>: Enables
339 <application>Vorbis</application> de/encoding
340 via <filename class="libraryfile">libvorbis</filename>.
341 </para>
342
343 <para>
344 <parameter>--enable-libvpx</parameter>: Enables VP8 de/encoding
345 via <filename class="libraryfile">libvpx</filename>.
346 </para>
347
348 <para>
349 <parameter>--enable-libxvid</parameter>: Enables
350 <application>Xvid</application> encoding
351 via <filename class="libraryfile">libxvidcore</filename>.
352 </para>
353
354 <para>
355 <parameter>--enable-openssl</parameter>: Enables
356 <application>OpenSSL</application> cryptography.
357 </para>
358
359 <para>
360 <parameter>--disable-debug</parameter>: Disables building debugging
361 symbols into the programs and libraries.
362 </para>
363
364 <para>
365 <command>gcc tools/qt-faststart.c -o tools/qt-faststart</command>:
366 This builds the <command>qt-faststart</command> program which can
367 modify QuickTime formatted movies
368 (<filename class="extension">.mov</filename> or
369 <filename class="extension">.mp4</filename>) so that the header information
370 is located at the beginning of the file instead of the end. This allows
371 the movie file to begin playing before the entire file has been downloaded.
372 </para>
373
374 <para>
375 <option>--enable-<replaceable>&lt;codec&gt;</replaceable></option>:
376 <application>FFmpeg</application> comes with code to compile decoders for
377 almost every codec you could think of. The only reason to enable a
378 specific codec (and make <application>FFmpeg</application> link to the
379 prerequisite shared library installed on your system) is to make
380 <application>FFmpeg</application> compile an <emphasis>encoder</emphasis>
381 for that codec. <application>FFmpeg</application> provides an excellent
382 collection of decoders. If you just want to use
383 <application>FFmpeg</application> to watch video or listen to music (via
384 other applications such as <application>Gstreamer</application> or
385 <application>Xine</application>) then you will not benefit from linking
386 <application>FFmpeg</application> to other codec libraries.
387 </para>
388
389 </sect2>
390
391 <sect2 role="configuration">
392 <title>Configuring FFmpeg</title>
393
394 <sect3 id="ffmpeg-config">
395 <title>Config Files</title>
396
397 <para>
398 <filename>/etc/ffserver.conf</filename> and
399 <filename>~/.ffmpeg/ffserver-config</filename>
400 </para>
401
402 <indexterm zone="ffmpeg ffmpeg-config">
403 <primary
404 sortas="e-AA.ffmpeg-ffserver-config">~/.ffmpeg/ffserver-config</primary>
405 </indexterm>
406
407 <indexterm zone="ffmpeg ffmpeg-config">
408 <primary sortas="e-etc-ffserver.conf">/etc/ffserver.conf</primary>
409 </indexterm>
410
411 <para>
412 You'll find a sample <command>ffserver</command> configuration file at
413 <filename>doc/ffserver.conf</filename> in the source tree.
414 </para>
415
416 </sect3>
417
418 </sect2>
419
420 <sect2 role="content">
421 <title>Contents</title>
422
423 <segmentedlist>
424 <segtitle>Installed Programs</segtitle>
425 <segtitle>Installed Libraries</segtitle>
426 <segtitle>Installed Directories</segtitle>
427
428 <seglistitem>
429 <seg>
430 ffmpeg, ffplay, ffprobe, ffserver and
431 qt-faststart
432 </seg>
433 <seg>
434 libavcodec.so, libavdevice.so, libavfilter.so,
435 libavformat.so, libavutil.so, libpostproc.so,
436 libswresample and libswscale.so
437 </seg>
438 <seg>
439 /usr/include/libavcodec,
440 /usr/include/libavdevice,
441 /usr/include/libavfilter,
442 /usr/include/libavformat,
443 /usr/include/libavutil,
444 /usr/include/libpostproc,
445 /usr/include/libswresample
446 /usr/include/libswscale,
447 /usr/share/ffmpeg and
448 /usr/share/doc/ffmpeg-&ffmpeg-version;
449 </seg>
450 </seglistitem>
451 </segmentedlist>
452
453 <variablelist>
454 <bridgehead renderas="sect3">Short Descriptions</bridgehead>
455 <?dbfo list-presentation="list"?>
456 <?dbhtml list-presentation="table"?>
457
458 <varlistentry id="ffmpeg-prog">
459 <term><command>ffmpeg</command></term>
460 <listitem>
461 <para>
462 is a command-line tool to convert video files, network streams and
463 input from a TV card to several video formats.
464 </para>
465 <indexterm zone="ffmpeg ffmpeg-prog">
466 <primary sortas="b-ffmpeg">ffmpeg</primary>
467 </indexterm>
468 </listitem>
469 </varlistentry>
470
471 <varlistentry id="ffplay">
472 <term><command>ffplay</command></term>
473 <listitem>
474 <para>
475 is a very simple and portable media player using the
476 <filename>ffmpeg</filename> libraries and the SDL library.
477 </para>
478 <indexterm zone="ffmpeg ffplay">
479 <primary sortas="b-ffplay">ffplay</primary>
480 </indexterm>
481 </listitem>
482 </varlistentry>
483
484 <varlistentry id="ffprobe">
485 <term><command>ffprobe</command></term>
486 <listitem>
487 <para>
488 gathers information from multimedia streams and prints it in a human
489 and machine-readable fashion.
490 </para>
491 <indexterm zone="ffmpeg ffprobe">
492 <primary sortas="b-ffprobe">ffprobe</primary>
493 </indexterm>
494 </listitem>
495 </varlistentry>
496
497 <varlistentry id="ffserver">
498 <term><command>ffserver</command></term>
499 <listitem>
500 <para>
501 is a streaming server for everything that <command>ffmpeg</command>
502 could use as input (files, streams, TV card input, webcam, etc).
503 </para>
504 <indexterm zone="ffmpeg ffserver">
505 <primary sortas="b-ffserver">ffserver</primary>
506 </indexterm>
507 </listitem>
508 </varlistentry>
509
510 <varlistentry id="qt-faststart">
511 <term><command>qt-faststart</command></term>
512 <listitem>
513 <para>
514 moves the index file to the front of quicktime (mov/mp4) videos.
515 </para>
516 <indexterm zone="ffmpeg qt-faststart">
517 <primary sortas="b-qt-faststart">qt-faststart</primary>
518 </indexterm>
519 </listitem>
520 </varlistentry>
521
522 <varlistentry id="libavcodec">
523 <term><filename class="libraryfile">libavcodec.so</filename></term>
524 <listitem>
525 <para>
526 is a library containing the <application>FFmpeg</application> codecs
527 (both encoding and decoding).
528 </para>
529 <indexterm zone="ffmpeg libavcodec">
530 <primary sortas="c-libavcodec">libavcodec.so</primary>
531 </indexterm>
532 </listitem>
533 </varlistentry>
534
535 <varlistentry id="libavdevice">
536 <term><filename class="libraryfile">libavdevice.so</filename></term>
537 <listitem>
538 <para>
539 is the <application>FFmpeg</application> device handling library.
540 </para>
541 <indexterm zone="ffmpeg libavdevice">
542 <primary sortas="c-libavdevice">libavdevice.so</primary>
543 </indexterm>
544 </listitem>
545 </varlistentry>
546
547 <varlistentry id="libavfilter">
548 <term><filename class="libraryfile">libavfilter.so</filename></term>
549 <listitem>
550 <para>
551 is a library of filters that can alter video or audio between the
552 decoder and the encoder (or output).
553 </para>
554 <indexterm zone="ffmpeg libavfilter">
555 <primary sortas="c-libavfilter">libavfilter.so</primary>
556 </indexterm>
557 </listitem>
558 </varlistentry>
559
560 <varlistentry id="libavformat">
561 <term><filename class="libraryfile">libavformat.so</filename></term>
562 <listitem>
563 <para>
564 is a library containing the file formats handling (mux and demux
565 code for several formats) used by <command>ffplay</command> as well
566 as allowing the generation of audio or video streams.
567 </para>
568 <indexterm zone="ffmpeg libavformat">
569 <primary sortas="c-libavformat">libavformat.so</primary>
570 </indexterm>
571 </listitem>
572 </varlistentry>
573
574 <varlistentry id="libavutil">
575 <term><filename class="libraryfile">libavutil.so</filename></term>
576 <listitem>
577 <para>
578 is the <application>FFmpeg</application> utility library.
579 </para>
580 <indexterm zone="ffmpeg libavutil">
581 <primary sortas="c-libavutil">libavutil.so</primary>
582 </indexterm>
583 </listitem>
584 </varlistentry>
585
586 <varlistentry id="libpostproc">
587 <term><filename class="libraryfile">libpostproc.so</filename></term>
588 <listitem>
589 <para>
590 is the <application>FFmpeg</application> post processing library.
591 </para>
592 <indexterm zone="ffmpeg libpostproc">
593 <primary sortas="c-libpostproc">libpostproc.so</primary>
594 </indexterm>
595 </listitem>
596 </varlistentry>
597
598 <varlistentry id="libswresample">
599 <term><filename class="libraryfile">libswresample.so</filename></term>
600 <listitem>
601 <para>
602 is the <application>FFmpeg</application> audio rescaling library,
603 it contains functions for converting audio sample formats.
604 </para>
605 <indexterm zone="ffmpeg libswresample">
606 <primary sortas="c-libswresample">libswresample.so</primary>
607 </indexterm>
608 </listitem>
609 </varlistentry>
610
611 <varlistentry id="libswscale">
612 <term><filename class="libraryfile">libswscale.so</filename></term>
613 <listitem>
614 <para>
615 is the <application>FFmpeg</application> image rescaling library.
616 </para>
617 <indexterm zone="ffmpeg libswscale">
618 <primary sortas="c-libswscale">libswscale.so</primary>
619 </indexterm>
620 </listitem>
621 </varlistentry>
622
623 </variablelist>
624
625 </sect2>
626
627</sect1>
Note: See TracBrowser for help on using the repository browser.