diff options
Diffstat (limited to 'gst/videorate')
| -rw-r--r-- | gst/videorate/AUTHORS | 0 | ||||
| -rw-r--r-- | gst/videorate/COPYING | 674 | ||||
| -rw-r--r-- | gst/videorate/ChangeLog | 0 | ||||
| -rw-r--r-- | gst/videorate/INSTALL | 291 | ||||
| -rw-r--r-- | gst/videorate/Makefile.am | 7 | ||||
| -rw-r--r-- | gst/videorate/NEWS | 0 | ||||
| -rw-r--r-- | gst/videorate/README | 0 | ||||
| -rwxr-xr-x | gst/videorate/autogen.sh | 92 | ||||
| -rw-r--r-- | gst/videorate/configure.ac | 136 | ||||
| -rw-r--r-- | gst/videorate/gst-autogen.sh | 308 | ||||
| -rw-r--r-- | gst/videorate/gstvideorate.c | 877 | ||||
| -rw-r--r-- | gst/videorate/gstvideorate.h | 81 | ||||
| -rw-r--r-- | gst/videorate/m4/Makefile.am | 1 | ||||
| -rw-r--r-- | gst/videorate/m4/as-compiler-flag.m4 | 25 | ||||
| -rw-r--r-- | gst/videorate/m4/as-version.m4 | 66 | ||||
| -rw-r--r-- | gst/videorate/service/service.info | 26 |
16 files changed, 2584 insertions, 0 deletions
diff --git a/gst/videorate/AUTHORS b/gst/videorate/AUTHORS new file mode 100644 index 0000000..e69de29 --- /dev/null +++ b/gst/videorate/AUTHORS diff --git a/gst/videorate/COPYING b/gst/videorate/COPYING new file mode 100644 index 0000000..94a9ed0 --- /dev/null +++ b/gst/videorate/COPYING @@ -0,0 +1,674 @@ + GNU GENERAL PUBLIC LICENSE + Version 3, 29 June 2007 + + Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/> + Everyone is permitted to copy and distribute verbatim copies + of this license document, but changing it is not allowed. + + Preamble + + The GNU General Public License is a free, copyleft license for +software and other kinds of works. + + The licenses for most software and other practical works are designed +to take away your freedom to share and change the works. By contrast, +the GNU General Public License is intended to guarantee your freedom to +share and change all versions of a program--to make sure it remains free +software for all its users. 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It is safest +to attach them to the start of each source file to most effectively +state the exclusion of warranty; and each file should have at least +the "copyright" line and a pointer to where the full notice is found. + + <one line to give the program's name and a brief idea of what it does.> + Copyright (C) <year> <name of author> + + This program is free software: you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, either version 3 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program. If not, see <http://www.gnu.org/licenses/>. + +Also add information on how to contact you by electronic and paper mail. + + If the program does terminal interaction, make it output a short +notice like this when it starts in an interactive mode: + + <program> Copyright (C) <year> <name of author> + This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'. + This is free software, and you are welcome to redistribute it + under certain conditions; type `show c' for details. + +The hypothetical commands `show w' and `show c' should show the appropriate +parts of the General Public License. Of course, your program's commands +might be different; for a GUI interface, you would use an "about box". + + You should also get your employer (if you work as a programmer) or school, +if any, to sign a "copyright disclaimer" for the program, if necessary. +For more information on this, and how to apply and follow the GNU GPL, see +<http://www.gnu.org/licenses/>. + + The GNU General Public License does not permit incorporating your program +into proprietary programs. If your program is a subroutine library, you +may consider it more useful to permit linking proprietary applications with +the library. If this is what you want to do, use the GNU Lesser General +Public License instead of this License. But first, please read +<http://www.gnu.org/philosophy/why-not-lgpl.html>. diff --git a/gst/videorate/ChangeLog b/gst/videorate/ChangeLog new file mode 100644 index 0000000..e69de29 --- /dev/null +++ b/gst/videorate/ChangeLog diff --git a/gst/videorate/INSTALL b/gst/videorate/INSTALL new file mode 100644 index 0000000..8b82ade --- /dev/null +++ b/gst/videorate/INSTALL @@ -0,0 +1,291 @@ +Installation Instructions +************************* + +Copyright (C) 1994, 1995, 1996, 1999, 2000, 2001, 2002, 2004, 2005, +2006, 2007, 2008 Free Software Foundation, Inc. + + This file is free documentation; the Free Software Foundation gives +unlimited permission to copy, distribute and modify it. + +Basic Installation +================== + + Briefly, the shell commands `./configure; make; make install' should +configure, build, and install this package. The following +more-detailed instructions are generic; see the `README' file for +instructions specific to this package. + + The `configure' shell script attempts to guess correct values for +various system-dependent variables used during compilation. It uses +those values to create a `Makefile' in each directory of the package. +It may also create one or more `.h' files containing system-dependent +definitions. Finally, it creates a shell script `config.status' that +you can run in the future to recreate the current configuration, and a +file `config.log' containing compiler output (useful mainly for +debugging `configure'). + + It can also use an optional file (typically called `config.cache' +and enabled with `--cache-file=config.cache' or simply `-C') that saves +the results of its tests to speed up reconfiguring. Caching is +disabled by default to prevent problems with accidental use of stale +cache files. + + If you need to do unusual things to compile the package, please try +to figure out how `configure' could check whether to do them, and mail +diffs or instructions to the address given in the `README' so they can +be considered for the next release. If you are using the cache, and at +some point `config.cache' contains results you don't want to keep, you +may remove or edit it. + + The file `configure.ac' (or `configure.in') is used to create +`configure' by a program called `autoconf'. You need `configure.ac' if +you want to change it or regenerate `configure' using a newer version +of `autoconf'. + +The simplest way to compile this package is: + + 1. `cd' to the directory containing the package's source code and type + `./configure' to configure the package for your system. + + Running `configure' might take a while. While running, it prints + some messages telling which features it is checking for. + + 2. Type `make' to compile the package. + + 3. Optionally, type `make check' to run any self-tests that come with + the package. + + 4. Type `make install' to install the programs and any data files and + documentation. + + 5. You can remove the program binaries and object files from the + source code directory by typing `make clean'. To also remove the + files that `configure' created (so you can compile the package for + a different kind of computer), type `make distclean'. There is + also a `make maintainer-clean' target, but that is intended mainly + for the package's developers. If you use it, you may have to get + all sorts of other programs in order to regenerate files that came + with the distribution. + + 6. Often, you can also type `make uninstall' to remove the installed + files again. + +Compilers and Options +===================== + + Some systems require unusual options for compilation or linking that +the `configure' script does not know about. Run `./configure --help' +for details on some of the pertinent environment variables. + + You can give `configure' initial values for configuration parameters +by setting variables in the command line or in the environment. Here +is an example: + + ./configure CC=c99 CFLAGS=-g LIBS=-lposix + + *Note Defining Variables::, for more details. + +Compiling For Multiple Architectures +==================================== + + You can compile the package for more than one kind of computer at the +same time, by placing the object files for each architecture in their +own directory. To do this, you can use GNU `make'. `cd' to the +directory where you want the object files and executables to go and run +the `configure' script. `configure' automatically checks for the +source code in the directory that `configure' is in and in `..'. + + With a non-GNU `make', it is safer to compile the package for one +architecture at a time in the source code directory. After you have +installed the package for one architecture, use `make distclean' before +reconfiguring for another architecture. + + On MacOS X 10.5 and later systems, you can create libraries and +executables that work on multiple system types--known as "fat" or +"universal" binaries--by specifying multiple `-arch' options to the +compiler but only a single `-arch' option to the preprocessor. Like +this: + + ./configure CC="gcc -arch i386 -arch x86_64 -arch ppc -arch ppc64" \ + CXX="g++ -arch i386 -arch x86_64 -arch ppc -arch ppc64" \ + CPP="gcc -E" CXXCPP="g++ -E" + + This is not guaranteed to produce working output in all cases, you +may have to build one architecture at a time and combine the results +using the `lipo' tool if you have problems. + +Installation Names +================== + + By default, `make install' installs the package's commands under +`/usr/local/bin', include files under `/usr/local/include', etc. You +can specify an installation prefix other than `/usr/local' by giving +`configure' the option `--prefix=PREFIX'. + + You can specify separate installation prefixes for +architecture-specific files and architecture-independent files. If you +pass the option `--exec-prefix=PREFIX' to `configure', the package uses +PREFIX as the prefix for installing programs and libraries. +Documentation and other data files still use the regular prefix. + + In addition, if you use an unusual directory layout you can give +options like `--bindir=DIR' to specify different values for particular +kinds of files. Run `configure --help' for a list of the directories +you can set and what kinds of files go in them. + + If the package supports it, you can cause programs to be installed +with an extra prefix or suffix on their names by giving `configure' the +option `--program-prefix=PREFIX' or `--program-suffix=SUFFIX'. + +Optional Features +================= + + Some packages pay attention to `--enable-FEATURE' options to +`configure', where FEATURE indicates an optional part of the package. +They may also pay attention to `--with-PACKAGE' options, where PACKAGE +is something like `gnu-as' or `x' (for the X Window System). The +`README' should mention any `--enable-' and `--with-' options that the +package recognizes. + + For packages that use the X Window System, `configure' can usually +find the X include and library files automatically, but if it doesn't, +you can use the `configure' options `--x-includes=DIR' and +`--x-libraries=DIR' to specify their locations. + +Particular systems +================== + + On HP-UX, the default C compiler is not ANSI C compatible. If GNU +CC is not installed, it is recommended to use the following options in +order to use an ANSI C compiler: + + ./configure CC="cc -Ae" + +and if that doesn't work, install pre-built binaries of GCC for HP-UX. + + On OSF/1 a.k.a. Tru64, some versions of the default C compiler cannot +parse its `<wchar.h>' header file. The option `-nodtk' can be used as +a workaround. If GNU CC is not installed, it is therefore recommended +to try + + ./configure CC="cc" + +and if that doesn't work, try + + ./configure CC="cc -nodtk" + +Specifying the System Type +========================== + + There may be some features `configure' cannot figure out +automatically, but needs to determine by the type of machine the package +will run on. Usually, assuming the package is built to be run on the +_same_ architectures, `configure' can figure that out, but if it prints +a message saying it cannot guess the machine type, give it the +`--build=TYPE' option. TYPE can either be a short name for the system +type, such as `sun4', or a canonical name which has the form: + + CPU-COMPANY-SYSTEM + +where SYSTEM can have one of these forms: + + OS KERNEL-OS + + See the file `config.sub' for the possible values of each field. If +`config.sub' isn't included in this package, then this package doesn't +need to know the machine type. + + If you are _building_ compiler tools for cross-compiling, you should +use the option `--target=TYPE' to select the type of system they will +produce code for. + + If you want to _use_ a cross compiler, that generates code for a +platform different from the build platform, you should specify the +"host" platform (i.e., that on which the generated programs will +eventually be run) with `--host=TYPE'. + +Sharing Defaults +================ + + If you want to set default values for `configure' scripts to share, +you can create a site shell script called `config.site' that gives +default values for variables like `CC', `cache_file', and `prefix'. +`configure' looks for `PREFIX/share/config.site' if it exists, then +`PREFIX/etc/config.site' if it exists. Or, you can set the +`CONFIG_SITE' environment variable to the location of the site script. +A warning: not all `configure' scripts look for a site script. + +Defining Variables +================== + + Variables not defined in a site shell script can be set in the +environment passed to `configure'. However, some packages may run +configure again during the build, and the customized values of these +variables may be lost. In order to avoid this problem, you should set +them in the `configure' command line, using `VAR=value'. For example: + + ./configure CC=/usr/local2/bin/gcc + +causes the specified `gcc' to be used as the C compiler (unless it is +overridden in the site shell script). + +Unfortunately, this technique does not work for `CONFIG_SHELL' due to +an Autoconf bug. Until the bug is fixed you can use this workaround: + + CONFIG_SHELL=/bin/bash /bin/bash ./configure CONFIG_SHELL=/bin/bash + +`configure' Invocation +====================== + + `configure' recognizes the following options to control how it +operates. + +`--help' +`-h' + Print a summary of all of the options to `configure', and exit. + +`--help=short' +`--help=recursive' + Print a summary of the options unique to this package's + `configure', and exit. The `short' variant lists options used + only in the top level, while the `recursive' variant lists options + also present in any nested packages. + +`--version' +`-V' + Print the version of Autoconf used to generate the `configure' + script, and exit. + +`--cache-file=FILE' + Enable the cache: use and save the results of the tests in FILE, + traditionally `config.cache'. FILE defaults to `/dev/null' to + disable caching. + +`--config-cache' +`-C' + Alias for `--cache-file=config.cache'. + +`--quiet' +`--silent' +`-q' + Do not print messages saying which checks are being made. To + suppress all normal output, redirect it to `/dev/null' (any error + messages will still be shown). + +`--srcdir=DIR' + Look for the package's source code in directory DIR. Usually + `configure' can determine that directory automatically. + +`--prefix=DIR' + Use DIR as the installation prefix. *Note Installation Names:: + for more details, including other options available for fine-tuning + the installation locations. + +`--no-create' +`-n' + Run the configure checks, but stop before creating any output + files. + +`configure' also accepts some other, not widely useful, options. Run +`configure --help' for more details. + diff --git a/gst/videorate/Makefile.am b/gst/videorate/Makefile.am new file mode 100644 index 0000000..f4e93aa --- /dev/null +++ b/gst/videorate/Makefile.am @@ -0,0 +1,7 @@ +plugin_LTLIBRARIES = libgstvideorate.la + +libgstvideorate_la_SOURCES = gstvideorate.c gstvideorate.h +libgstvideorate_la_CFLAGS = $(GST_CFLAGS) $(GST_AUDIO_CFLAGS) +libgstvideorate_la_LIBADD = $(GST_LIBS) $(GST_AUDIO_LIBS) +libgstvideorate_la_LDFLAGS = $(GST_PLUGIN_LDFLAGS) +libgstvideorate_la_LIBTOOLFLAGS = --tag=disable-static diff --git a/gst/videorate/NEWS b/gst/videorate/NEWS new file mode 100644 index 0000000..e69de29 --- /dev/null +++ b/gst/videorate/NEWS diff --git a/gst/videorate/README b/gst/videorate/README new file mode 100644 index 0000000..e69de29 --- /dev/null +++ b/gst/videorate/README diff --git a/gst/videorate/autogen.sh b/gst/videorate/autogen.sh new file mode 100755 index 0000000..aa82ce7 --- /dev/null +++ b/gst/videorate/autogen.sh @@ -0,0 +1,92 @@ +#!/bin/sh +# you can either set the environment variables AUTOCONF and AUTOMAKE +# to the right versions, or leave them unset and get the RedHat 7.3 defaults + +NOCONFIGURE=1 +DIE=0 +package=gst-plugin +srcfile=src/main.c + +# autogen.sh helper functions (copied from GStreamer's common/ CVS module) +if test ! -f ./gst-autogen.sh; +then + echo There is something wrong with your source tree. + echo You are either missing ./gst-autogen.sh or not + echo running autogen.sh from the top-level source + echo directory. + exit 1 +fi +. ./gst-autogen.sh + +CONFIGURE_DEF_OPT='--enable-maintainer-mode --enable-debug' + +autogen_options $@ + +echo -n "+ check for build tools" +if test ! -z "$NOCHECK"; then echo " skipped"; else echo; fi +version_check "autoconf" "$AUTOCONF autoconf autoconf259 autoconf257 autoconf-2.54 autoconf-2.53 autoconf-2.52" \ + "ftp://ftp.gnu.org/pub/gnu/autoconf/" 2 52 || DIE=1 +version_check "automake" "$AUTOMAKE automake automake-1.9 automake19 automake-1.7 automake-1.6 automake-1.5" \ + "ftp://ftp.gnu.org/pub/gnu/automake/" 1 7 || DIE=1 +###version_check "autopoint" "autopoint" \ +### "ftp://ftp.gnu.org/pub/gnu/gettext/" 0 11 5 || DIE=1 +version_check "libtoolize" "$LIBTOOLIZE libtoolize glibtoolize" \ + "ftp://ftp.gnu.org/pub/gnu/libtool/" 1 5 0 || DIE=1 +version_check "pkg-config" "" \ + "http://www.freedesktop.org/software/pkgconfig" 0 8 0 || DIE=1 + +die_check $DIE + +autoconf_2_52d_check || DIE=1 +aclocal_check || DIE=1 +autoheader_check || DIE=1 + +die_check $DIE + +# if no arguments specified then this will be printed +if test -z "$*"; then + echo "+ checking for autogen.sh options" + echo " This autogen script will automatically run ./configure as:" + echo " ./configure $CONFIGURE_DEF_OPT" + echo " To pass any additional options, please specify them on the $0" + echo " command line." +fi + +tool_run "$aclocal" "-I m4/ $ACLOCAL_FLAGS" +tool_run "$libtoolize" "--copy --force" +tool_run "$autoheader" +tool_run "$autoconf" +tool_run "$automake" "-a -c" + +# if enable exists, add an -enable option for each of the lines in that file +if test -f enable; then + for a in `cat enable`; do + CONFIGURE_FILE_OPT="--enable-$a" + done +fi + +# if disable exists, add an -disable option for each of the lines in that file +if test -f disable; then + for a in `cat disable`; do + CONFIGURE_FILE_OPT="$CONFIGURE_FILE_OPT --disable-$a" + done +fi + +test -n "$NOCONFIGURE" && { + echo "+ skipping configure stage for package $package, as requested." + echo "+ autogen.sh done." + exit 0 +} + +echo "+ running configure ... " +test ! -z "$CONFIGURE_DEF_OPT" && echo " ./configure default flags: $CONFIGURE_DEF_OPT" +test ! -z "$CONFIGURE_EXT_OPT" && echo " ./configure external flags: $CONFIGURE_EXT_OPT" +test ! -z "$CONFIGURE_FILE_OPT" && echo " ./configure enable/disable flags: $CONFIGURE_FILE_OPT" +echo + +./configure $CONFIGURE_DEF_OPT $CONFIGURE_EXT_OPT $CONFIGURE_FILE_OPT || { + echo " configure failed" + exit 1 +} + +echo "Now type 'make' to compile $package." diff --git a/gst/videorate/configure.ac b/gst/videorate/configure.ac new file mode 100644 index 0000000..a1b6444 --- /dev/null +++ b/gst/videorate/configure.ac @@ -0,0 +1,136 @@ +AC_INIT + +dnl versions of gstreamer and plugins-base +GST_MAJORMINOR=0.10 +GST_REQUIRED=0.10.0 +GSTPB_REQUIRED=0.10.0 + +dnl fill in your package name and version here +dnl the fourth (nano) number should be 0 for a release, 1 for CVS, +dnl and 2... for a prerelease + +dnl when going to/from release please set the nano correctly ! +dnl releases only do Wall, cvs and prerelease does Werror too +AS_VERSION(gst-plugins-base, GST_PLUGIN_VERSION, 0, 10, 25,, + GST_PLUGIN_CVS="no", GST_PLUGIN_CVS="yes") + +dnl AM_MAINTAINER_MODE provides the option to enable maintainer mode +#AM_MAINTAINER_MODE + +AM_INIT_AUTOMAKE($PACKAGE, $VERSION) + +dnl make aclocal work in maintainer mode +AC_SUBST(ACLOCAL_AMFLAGS, "-I m4") + +AM_CONFIG_HEADER(config.h) + +dnl check for tools +AC_PROG_CC +AC_PROG_LIBTOOL + + +dnl decide on error flags +AS_COMPILER_FLAG(-Wall, GST_WALL="yes", GST_WALL="no") + +if test "x$GST_WALL" = "xyes"; then + GST_ERROR="$GST_ERROR -Wall" + + if test "x$GST_PLUGIN_CVS" = "xyes"; then + AS_COMPILER_FLAG(-Werror,GST_ERROR="$GST_ERROR -Werror",GST_ERROR="$GST_ERROR") + fi +fi + +dnl Check for pkgconfig first +AC_CHECK_PROG(HAVE_PKGCONFIG, pkg-config, yes, no) + +dnl Give error and exit if we don't have pkgconfig +if test "x$HAVE_PKGCONFIG" = "xno"; then + AC_MSG_ERROR(you need to have pkgconfig installed !) +fi + +dnl Now we're ready to ask for gstreamer libs and cflags +dnl And we can also ask for the right version of gstreamer + + +PKG_CHECK_MODULES(GST, \ + gstreamer-$GST_MAJORMINOR >= $GST_REQUIRED, + HAVE_GST=yes,HAVE_GST=no) + +dnl Give error and exit if we don't have gstreamer +if test "x$HAVE_GST" = "xno"; then + AC_MSG_ERROR(you need gstreamer development packages installed !) +fi + +dnl append GST_ERROR cflags to GST_CFLAGS +GST_CFLAGS="$GST_CFLAGS $GST_ERROR" + +dnl make GST_CFLAGS and GST_LIBS available +AC_SUBST(GST_CFLAGS) +AC_SUBST(GST_LIBS) + +dnl make GST_MAJORMINOR available in Makefile.am +AC_SUBST(GST_MAJORMINOR) + +dnl If we need them, we can also use the base class libraries +PKG_CHECK_MODULES(GST_BASE, gstreamer-base-$GST_MAJORMINOR >= $GST_REQUIRED, + HAVE_GST_BASE=yes, HAVE_GST_BASE=no) + +dnl Give a warning if we don't have gstreamer libs +dnl you can turn this into an error if you need them +if test "x$HAVE_GST_BASE" = "xno"; then + AC_MSG_NOTICE(no GStreamer base class libraries found (gstreamer-base-$GST_MAJORMINOR)) +fi + +dnl make _CFLAGS and _LIBS available +AC_SUBST(GST_BASE_CFLAGS) +AC_SUBST(GST_BASE_LIBS) + +dnl If we need them, we can also use the gstreamer-plugins-base libraries +PKG_CHECK_MODULES(GSTPB_BASE, + gstreamer-plugins-base-$GST_MAJORMINOR >= $GSTPB_REQUIRED, + HAVE_GSTPB_BASE=yes, HAVE_GSTPB_BASE=no) + +dnl Give a warning if we don't have gstreamer libs +dnl you can turn this into an error if you need them +if test "x$HAVE_GSTPB_BASE" = "xno"; then + AC_MSG_NOTICE(no GStreamer Plugins Base libraries found (gstreamer-plugins-base-$GST_MAJORMINOR)) +fi + +dnl make _CFLAGS and _LIBS available +AC_SUBST(GSTPB_BASE_CFLAGS) +AC_SUBST(GSTPB_BASE_LIBS) + +dnl If we need them, we can also use the gstreamer-controller libraries +PKG_CHECK_MODULES(GSTCTRL, + gstreamer-controller-$GST_MAJORMINOR >= $GSTPB_REQUIRED, + HAVE_GSTCTRL=yes, HAVE_GSTCTRL=no) + +dnl Give a warning if we don't have gstreamer-controller +dnl you can turn this into an error if you need them +if test "x$HAVE_GSTCTRL" = "xno"; then + AC_MSG_NOTICE(no GStreamer Controller libraries found (gstreamer-controller-$GST_MAJORMINOR)) +fi + +dnl make _CFLAGS and _LIBS available +AC_SUBST(GSTCTRL_CFLAGS) +AC_SUBST(GSTCTRL_LIBS) + +dnl set the plugindir where plugins should be installed +if test "x${prefix}" = "x$HOME"; then + plugindir="$HOME/.gstreamer-$GST_MAJORMINOR/plugins" +else + plugindir="\$(libdir)/gstreamer-$GST_MAJORMINOR" +fi +AC_SUBST(plugindir) + +dnl set proper LDFLAGS for plugins +GST_PLUGIN_LDFLAGS='-module -avoid-version -export-symbols-regex [_]*\(gst_\|Gst\|GST_\).*' +AC_SUBST(GST_PLUGIN_LDFLAGS) + +PKG_CHECK_MODULES(OGG, ogg) + +AC_DEFINE_UNQUOTED(GST_LICENSE, "LGPL", [ ]) +AC_DEFINE_UNQUOTED(GST_PACKAGE_NAME, "GStreamer Base Plug-ins CVS/prerelease", [ ]) +AC_DEFINE_UNQUOTED(GST_PACKAGE_ORIGIN, "Unknown package origin", [ ]) + +AC_OUTPUT(Makefile) diff --git a/gst/videorate/gst-autogen.sh b/gst/videorate/gst-autogen.sh new file mode 100644 index 0000000..7b31212 --- /dev/null +++ b/gst/videorate/gst-autogen.sh @@ -0,0 +1,308 @@ +# a silly hack that generates autoregen.sh but it's handy +# Remove the old autoregen.sh first to create a new file, +# as the current one may be being read by the shell executing +# this script. +if [ -f "autoregen.sh" ]; then + rm autoregen.sh +fi +echo "#!/bin/sh" > autoregen.sh +echo "./autogen.sh $@ \$@" >> autoregen.sh +chmod +x autoregen.sh + +# helper functions for autogen.sh + +debug () +# print out a debug message if DEBUG is a defined variable +{ + if test ! -z "$DEBUG" + then + echo "DEBUG: $1" + fi +} + +version_check () +# check the version of a package +# first argument : package name (executable) +# second argument : optional path where to look for it instead +# third argument : source download url +# rest of arguments : major, minor, micro version +# all consecutive ones : suggestions for binaries to use +# (if not specified in second argument) +{ + PACKAGE=$1 + PKG_PATH=$2 + URL=$3 + MAJOR=$4 + MINOR=$5 + MICRO=$6 + + # for backwards compatibility, we let PKG_PATH=PACKAGE when PKG_PATH null + if test -z "$PKG_PATH"; then PKG_PATH=$PACKAGE; fi + debug "major $MAJOR minor $MINOR micro $MICRO" + VERSION=$MAJOR + if test ! -z "$MINOR"; then VERSION=$VERSION.$MINOR; else MINOR=0; fi + if test ! -z "$MICRO"; then VERSION=$VERSION.$MICRO; else MICRO=0; fi + + debug "major $MAJOR minor $MINOR micro $MICRO" + + for SUGGESTION in $PKG_PATH; do + COMMAND="$SUGGESTION" + + # don't check if asked not to + test -z "$NOCHECK" && { + echo -n " checking for $COMMAND >= $VERSION ... " + } || { + # we set a var with the same name as the package, but stripped of + # unwanted chars + VAR=`echo $PACKAGE | sed 's/-//g'` + debug "setting $VAR" + eval $VAR="$COMMAND" + return 0 + } + + debug "checking version with $COMMAND" + ($COMMAND --version) < /dev/null > /dev/null 2>&1 || + { + echo "not found." + continue + } + # strip everything that's not a digit, then use cut to get the first field + pkg_version=`$COMMAND --version|head -n 1|sed 's/^.*)[^0-9]*//'|cut -d' ' -f1` + debug "pkg_version $pkg_version" + # remove any non-digit characters from the version numbers to permit numeric + # comparison + pkg_major=`echo $pkg_version | cut -d. -f1 | sed s/[a-zA-Z\-].*//g` + pkg_minor=`echo $pkg_version | cut -d. -f2 | sed s/[a-zA-Z\-].*//g` + pkg_micro=`echo $pkg_version | cut -d. -f3 | sed s/[a-zA-Z\-].*//g` + test -z "$pkg_major" && pkg_major=0 + test -z "$pkg_minor" && pkg_minor=0 + test -z "$pkg_micro" && pkg_micro=0 + debug "found major $pkg_major minor $pkg_minor micro $pkg_micro" + + #start checking the version + debug "version check" + + # reset check + WRONG= + + if [ ! "$pkg_major" -gt "$MAJOR" ]; then + debug "major: $pkg_major <= $MAJOR" + if [ "$pkg_major" -lt "$MAJOR" ]; then + debug "major: $pkg_major < $MAJOR" + WRONG=1 + elif [ ! "$pkg_minor" -gt "$MINOR" ]; then + debug "minor: $pkg_minor <= $MINOR" + if [ "$pkg_minor" -lt "$MINOR" ]; then + debug "minor: $pkg_minor < $MINOR" + WRONG=1 + elif [ "$pkg_micro" -lt "$MICRO" ]; then + debug "micro: $pkg_micro < $MICRO" + WRONG=1 + fi + fi + fi + + if test ! -z "$WRONG"; then + echo "found $pkg_version, not ok !" + continue + else + echo "found $pkg_version, ok." + # we set a var with the same name as the package, but stripped of + # unwanted chars + VAR=`echo $PACKAGE | sed 's/-//g'` + debug "setting $VAR" + eval $VAR="$COMMAND" + return 0 + fi + done + + echo "not found !" + echo "You must have $PACKAGE installed to compile $package." + echo "Download the appropriate package for your distribution," + echo "or get the source tarball at $URL" + return 1; +} + +aclocal_check () +{ + # normally aclocal is part of automake + # so we expect it to be in the same place as automake + # so if a different automake is supplied, we need to adapt as well + # so how's about replacing automake with aclocal in the set var, + # and saving that in $aclocal ? + # note, this will fail if the actual automake isn't called automake* + # or if part of the path before it contains it + if [ -z "$automake" ]; then + echo "Error: no automake variable set !" + return 1 + else + aclocal=`echo $automake | sed s/automake/aclocal/` + debug "aclocal: $aclocal" + if [ "$aclocal" != "aclocal" ]; + then + CONFIGURE_DEF_OPT="$CONFIGURE_DEF_OPT --with-aclocal=$aclocal" + fi + if [ ! -x `which $aclocal` ]; then + echo "Error: cannot execute $aclocal !" + return 1 + fi + fi +} + +autoheader_check () +{ + # same here - autoheader is part of autoconf + # use the same voodoo + if [ -z "$autoconf" ]; then + echo "Error: no autoconf variable set !" + return 1 + else + autoheader=`echo $autoconf | sed s/autoconf/autoheader/` + debug "autoheader: $autoheader" + if [ "$autoheader" != "autoheader" ]; + then + CONFIGURE_DEF_OPT="$CONFIGURE_DEF_OPT --with-autoheader=$autoheader" + fi + if [ ! -x `which $autoheader` ]; then + echo "Error: cannot execute $autoheader !" + return 1 + fi + fi + +} +autoconf_2_52d_check () +{ + # autoconf 2.52d has a weird issue involving a yes:no error + # so don't allow it's use + test -z "$NOCHECK" && { + ac_version=`$autoconf --version|head -n 1|sed 's/^[a-zA-Z\.\ ()]*//;s/ .*$//'` + if test "$ac_version" = "2.52d"; then + echo "autoconf 2.52d has an issue with our current build." + echo "We don't know who's to blame however. So until we do, get a" + echo "regular version. RPM's of a working version are on the gstreamer site." + exit 1 + fi + } + return 0 +} + +die_check () +{ + # call with $DIE + # if set to 1, we need to print something helpful then die + DIE=$1 + if test "x$DIE" = "x1"; + then + echo + echo "- Please get the right tools before proceeding." + echo "- Alternatively, if you're sure we're wrong, run with --nocheck." + exit 1 + fi +} + +autogen_options () +{ + if test "x$1" = "x"; then + return 0 + fi + + while test "x$1" != "x" ; do + optarg=`expr "x$1" : 'x[^=]*=\(.*\)'` + case "$1" in + --noconfigure) + NOCONFIGURE=defined + AUTOGEN_EXT_OPT="$AUTOGEN_EXT_OPT --noconfigure" + echo "+ configure run disabled" + shift + ;; + --nocheck) + AUTOGEN_EXT_OPT="$AUTOGEN_EXT_OPT --nocheck" + NOCHECK=defined + echo "+ autotools version check disabled" + shift + ;; + --debug) + DEBUG=defined + AUTOGEN_EXT_OPT="$AUTOGEN_EXT_OPT --debug" + echo "+ debug output enabled" + shift + ;; + --prefix=*) + CONFIGURE_EXT_OPT="$CONFIGURE_EXT_OPT --prefix=$optarg" + echo "+ passing --prefix=$optarg to configure" + shift + ;; + --prefix) + shift + echo "DEBUG: $1" + CONFIGURE_EXT_OPT="$CONFIGURE_EXT_OPT --prefix=$1" + echo "+ passing --prefix=$1 to configure" + shift + ;; + + -h|--help) + echo "autogen.sh (autogen options) -- (configure options)" + echo "autogen.sh help options: " + echo " --noconfigure don't run the configure script" + echo " --nocheck don't do version checks" + echo " --debug debug the autogen process" + echo " --prefix will be passed on to configure" + echo + echo " --with-autoconf PATH use autoconf in PATH" + echo " --with-automake PATH use automake in PATH" + echo + echo "to pass options to configure, put them as arguments after -- " + exit 1 + ;; + --with-automake=*) + AUTOMAKE=$optarg + echo "+ using alternate automake in $optarg" + CONFIGURE_DEF_OPT="$CONFIGURE_DEF_OPT --with-automake=$AUTOMAKE" + shift + ;; + --with-autoconf=*) + AUTOCONF=$optarg + echo "+ using alternate autoconf in $optarg" + CONFIGURE_DEF_OPT="$CONFIGURE_DEF_OPT --with-autoconf=$AUTOCONF" + shift + ;; + --disable*|--enable*|--with*) + echo "+ passing option $1 to configure" + CONFIGURE_EXT_OPT="$CONFIGURE_EXT_OPT $1" + shift + ;; + --) shift ; break ;; + *) echo "- ignoring unknown autogen.sh argument $1"; shift ;; + esac + done + + for arg do CONFIGURE_EXT_OPT="$CONFIGURE_EXT_OPT $arg"; done + if test ! -z "$CONFIGURE_EXT_OPT" + then + echo "+ options passed to configure: $CONFIGURE_EXT_OPT" + fi +} + +toplevel_check () +{ + srcfile=$1 + test -f $srcfile || { + echo "You must run this script in the top-level $package directory" + exit 1 + } +} + + +tool_run () +{ + tool=$1 + options=$2 + run_if_fail=$3 + echo "+ running $tool $options..." + $tool $options || { + echo + echo $tool failed + eval $run_if_fail + exit 1 + } +} diff --git a/gst/videorate/gstvideorate.c b/gst/videorate/gstvideorate.c new file mode 100644 index 0000000..b728357 --- /dev/null +++ b/gst/videorate/gstvideorate.c @@ -0,0 +1,877 @@ +/* GStreamer + * Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu> + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Library General Public + * License as published by the Free Software Foundation; either + * version 2 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Library General Public License for more details. + * + * You should have received a copy of the GNU Library General Public + * License along with this library; if not, write to the + * Free Software Foundation, Inc., 59 Temple Place - Suite 330, + * Boston, MA 02111-1307, USA. + */ + +/** + * SECTION:element-videorate + * + * This element takes an incoming stream of timestamped video frames. + * It will produce a perfect stream that matches the source pad's framerate. + * + * The correction is performed by dropping and duplicating frames, no fancy + * algorithm is used to interpolate frames (yet). + * + * By default the element will simply negotiate the same framerate on its + * source and sink pad. + * + * This operation is useful to link to elements that require a perfect stream. + * Typical examples are formats that do not store timestamps for video frames, + * but only store a framerate, like Ogg and AVI. + * + * A conversion to a specific framerate can be forced by using filtered caps on + * the source pad. + * + * The properties #GstVideoRate:in, #GstVideoRate:out, #GstVideoRate:duplicate + * and #GstVideoRate:drop can be read to obtain information about number of + * input frames, output frames, dropped frames (i.e. the number of unused input + * frames) and duplicated frames (i.e. the number of times an input frame was + * duplicated, beside being used normally). + * + * An input stream that needs no adjustments will thus never have dropped or + * duplicated frames. + * + * When the #GstVideoRate:silent property is set to FALSE, a GObject property + * notification will be emitted whenever one of the #GstVideoRate:duplicate or + * #GstVideoRate:drop values changes. + * This can potentially cause performance degradation. + * Note that property notification will happen from the streaming thread, so + * applications should be prepared for this. + * + * <refsect2> + * <title>Example pipelines</title> + * |[ + * gst-launch -v filesrc location=videotestsrc.ogg ! oggdemux ! theoradec ! videorate ! video/x-raw-yuv,framerate=15/1 ! xvimagesink + * ]| Decode an Ogg/Theora file and adjust the framerate to 15 fps before playing. + * To create the test Ogg/Theora file refer to the documentation of theoraenc. + * |[ + * gst-launch -v v4lsrc ! videorate ! video/x-raw-yuv,framerate=25/2 ! theoraenc ! oggmux ! filesink location=v4l.ogg + * ]| Capture video from a V4L device, and adjust the stream to 12.5 fps before + * encoding to Ogg/Theora. + * </refsect2> + * + * Last reviewed on 2006-09-02 (0.10.11) + */ + +#ifdef HAVE_CONFIG_H +#include "config.h" +#endif + +#include "gstvideorate.h" + +GST_DEBUG_CATEGORY_STATIC (video_rate_debug); +#define GST_CAT_DEFAULT video_rate_debug + +/* elementfactory information */ +static const GstElementDetails video_rate_details = +GST_ELEMENT_DETAILS ("Video rate adjuster", + "Filter/Effect/Video", + "Drops/duplicates/adjusts timestamps on video frames to make a perfect stream", + "Wim Taymans <wim@fluendo.com>"); + +/* GstVideoRate signals and args */ +enum +{ + /* FILL ME */ + LAST_SIGNAL +}; + +#define DEFAULT_SILENT TRUE +#define DEFAULT_NEW_PREF 1.0 +#define DEFAULT_SKIP_TO_FIRST FALSE + +enum +{ + ARG_0, + ARG_IN, + ARG_OUT, + ARG_DUP, + ARG_DROP, + ARG_SILENT, + ARG_NEW_PREF, + ARG_SKIP_TO_FIRST + /* FILL ME */ +}; + +static GstStaticPadTemplate gst_video_rate_src_template = + GST_STATIC_PAD_TEMPLATE ("src", + GST_PAD_SRC, + GST_PAD_ALWAYS, + GST_STATIC_CAPS ("video/x-raw-yuv; video/x-raw-rgb; image/jpeg; image/png") + ); + +static GstStaticPadTemplate gst_video_rate_sink_template = + GST_STATIC_PAD_TEMPLATE ("sink", + GST_PAD_SINK, + GST_PAD_ALWAYS, + GST_STATIC_CAPS ("video/x-raw-yuv; video/x-raw-rgb; image/jpeg; image/png") + ); + +static void gst_video_rate_swap_prev (GstVideoRate * videorate, + GstBuffer * buffer, gint64 time); +static gboolean gst_video_rate_event (GstPad * pad, GstEvent * event); +static gboolean gst_video_rate_query (GstPad * pad, GstQuery * query); +static GstFlowReturn gst_video_rate_chain (GstPad * pad, GstBuffer * buffer); + +static void gst_video_rate_set_property (GObject * object, + guint prop_id, const GValue * value, GParamSpec * pspec); +static void gst_video_rate_get_property (GObject * object, + guint prop_id, GValue * value, GParamSpec * pspec); + +static GstStateChangeReturn gst_video_rate_change_state (GstElement * element, + GstStateChange transition); + +/*static guint gst_video_rate_signals[LAST_SIGNAL] = { 0 }; */ + +GST_BOILERPLATE (GstVideoRate, gst_video_rate, GstElement, GST_TYPE_ELEMENT); + +static void +gst_video_rate_base_init (gpointer g_class) +{ + GstElementClass *element_class = GST_ELEMENT_CLASS (g_class); + + gst_element_class_set_details (element_class, &video_rate_details); + + gst_element_class_add_pad_template (element_class, + gst_static_pad_template_get (&gst_video_rate_sink_template)); + gst_element_class_add_pad_template (element_class, + gst_static_pad_template_get (&gst_video_rate_src_template)); +} +static void +gst_video_rate_class_init (GstVideoRateClass * klass) +{ + GObjectClass *object_class = G_OBJECT_CLASS (klass); + GstElementClass *element_class = GST_ELEMENT_CLASS (klass); + + parent_class = g_type_class_peek_parent (klass); + + object_class->set_property = gst_video_rate_set_property; + object_class->get_property = gst_video_rate_get_property; + + g_object_class_install_property (object_class, ARG_IN, + g_param_spec_uint64 ("in", "In", + "Number of input frames", 0, G_MAXUINT64, 0, + G_PARAM_READABLE | G_PARAM_STATIC_STRINGS)); + g_object_class_install_property (object_class, ARG_OUT, + g_param_spec_uint64 ("out", "Out", "Number of output frames", 0, + G_MAXUINT64, 0, G_PARAM_READABLE | G_PARAM_STATIC_STRINGS)); + g_object_class_install_property (object_class, ARG_DUP, + g_param_spec_uint64 ("duplicate", "Duplicate", + "Number of duplicated frames", 0, G_MAXUINT64, 0, + G_PARAM_READABLE | G_PARAM_STATIC_STRINGS)); + g_object_class_install_property (object_class, ARG_DROP, + g_param_spec_uint64 ("drop", "Drop", "Number of dropped frames", 0, + G_MAXUINT64, 0, G_PARAM_READABLE | G_PARAM_STATIC_STRINGS)); + g_object_class_install_property (object_class, ARG_SILENT, + g_param_spec_boolean ("silent", "silent", + "Don't emit notify for dropped and duplicated frames", DEFAULT_SILENT, + G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); + g_object_class_install_property (object_class, ARG_NEW_PREF, + g_param_spec_double ("new-pref", "New Pref", + "Value indicating how much to prefer new frames (unused)", 0.0, 1.0, + DEFAULT_NEW_PREF, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); + g_object_class_install_property (object_class, ARG_SKIP_TO_FIRST, + g_param_spec_boolean ("skip-to-first", "Skip to first buffer", + "Don't produce buffers before the first one we receive", + DEFAULT_SKIP_TO_FIRST, + G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); + + element_class->change_state = gst_video_rate_change_state; +} + +/* return the caps that can be used on out_pad given in_caps on in_pad */ +static gboolean +gst_video_rate_transformcaps (GstPad * in_pad, GstCaps * in_caps, + GstPad * out_pad, GstCaps ** out_caps) +{ + GstCaps *intersect; + const GstCaps *in_templ; + gint i; + + in_templ = gst_pad_get_pad_template_caps (in_pad); + intersect = gst_caps_intersect (in_caps, in_templ); + + /* all possible framerates are allowed */ + for (i = 0; i < gst_caps_get_size (intersect); i++) { + GstStructure *structure; + + structure = gst_caps_get_structure (intersect, i); + + gst_structure_set (structure, + "framerate", GST_TYPE_FRACTION_RANGE, 0, 1, G_MAXINT, 1, NULL); + } + *out_caps = intersect; + + return TRUE; +} + +static GstCaps * +gst_video_rate_getcaps (GstPad * pad) +{ + GstVideoRate *videorate; + GstPad *otherpad; + GstCaps *caps; + + videorate = GST_VIDEO_RATE (GST_PAD_PARENT (pad)); + + otherpad = (pad == videorate->srcpad) ? videorate->sinkpad : + videorate->srcpad; + + /* we can do what the peer can */ + caps = gst_pad_peer_get_caps (otherpad); + if (caps) { + GstCaps *transform; + + gst_video_rate_transformcaps (otherpad, caps, pad, &transform); + gst_caps_unref (caps); + caps = transform; + } else { + /* no peer, our padtemplate is enough then */ + caps = gst_caps_copy (gst_pad_get_pad_template_caps (pad)); + } + + return caps; +} + +static gboolean +gst_video_rate_setcaps (GstPad * pad, GstCaps * caps) +{ + GstVideoRate *videorate; + GstStructure *structure; + gboolean ret = TRUE; + GstPad *otherpad, *opeer; + gint rate_numerator, rate_denominator; + + videorate = GST_VIDEO_RATE (gst_pad_get_parent (pad)); + + GST_DEBUG ("setcaps called %" GST_PTR_FORMAT, caps); + + structure = gst_caps_get_structure (caps, 0); + if (!gst_structure_get_fraction (structure, "framerate", + &rate_numerator, &rate_denominator)) + goto no_framerate; + + if (pad == videorate->srcpad) { + videorate->to_rate_numerator = rate_numerator; + videorate->to_rate_denominator = rate_denominator; + otherpad = videorate->sinkpad; + } else { + videorate->from_rate_numerator = rate_numerator; + videorate->from_rate_denominator = rate_denominator; + otherpad = videorate->srcpad; + } + /* now try to find something for the peer */ + opeer = gst_pad_get_peer (otherpad); + if (opeer) { + if (gst_pad_accept_caps (opeer, caps)) { + /* the peer accepts the caps as they are */ + gst_pad_set_caps (otherpad, caps); + + ret = TRUE; + } else { + GstCaps *peercaps; + GstCaps *intersect; + GstCaps *transform = NULL; + + ret = FALSE; + + /* see how we can transform the input caps */ + if (!gst_video_rate_transformcaps (pad, caps, otherpad, &transform)) + goto no_transform; + + /* see what the peer can do */ + peercaps = gst_pad_get_caps (opeer); + + GST_DEBUG ("icaps %" GST_PTR_FORMAT, peercaps); + GST_DEBUG ("transform %" GST_PTR_FORMAT, transform); + + /* filter against our possibilities */ + intersect = gst_caps_intersect (peercaps, transform); + gst_caps_unref (peercaps); + gst_caps_unref (transform); + + GST_DEBUG ("intersect %" GST_PTR_FORMAT, intersect); + + /* take first possibility */ + caps = gst_caps_copy_nth (intersect, 0); + gst_caps_unref (intersect); + structure = gst_caps_get_structure (caps, 0); + + /* and fixate */ + gst_structure_fixate_field_nearest_fraction (structure, "framerate", + rate_numerator, rate_denominator); + + gst_structure_get_fraction (structure, "framerate", + &rate_numerator, &rate_denominator); + + if (otherpad == videorate->srcpad) { + videorate->to_rate_numerator = rate_numerator; + videorate->to_rate_denominator = rate_denominator; + } else { + videorate->from_rate_numerator = rate_numerator; + videorate->from_rate_denominator = rate_denominator; + } + gst_pad_set_caps (otherpad, caps); + gst_caps_unref (caps); + ret = TRUE; + } + gst_object_unref (opeer); + } +done: + /* After a setcaps, our caps may have changed. In that case, we can't use + * the old buffer, if there was one (it might have different dimensions) */ + GST_DEBUG ("swapping old buffers"); + gst_video_rate_swap_prev (videorate, NULL, GST_CLOCK_TIME_NONE); + + gst_object_unref (videorate); + return ret; + +no_framerate: + { + GST_DEBUG_OBJECT (videorate, "no framerate specified"); + goto done; + } +no_transform: + { + GST_DEBUG_OBJECT (videorate, "no framerate transform possible"); + ret = FALSE; + goto done; + } +} + +static void +gst_video_rate_reset (GstVideoRate * videorate) +{ + GST_DEBUG ("resetting internal variables"); + + videorate->in = 0; + videorate->out = 0; + videorate->segment_out = 0; + videorate->drop = 0; + videorate->dup = 0; + videorate->next_ts = GST_CLOCK_TIME_NONE; + gst_video_rate_swap_prev (videorate, NULL, 0); + + gst_segment_init (&videorate->segment, GST_FORMAT_TIME); +} + +static void +gst_video_rate_init (GstVideoRate * videorate, GstVideoRateClass * klass) +{ + GST_DEBUG ("gst_video_rate_init"); + videorate->sinkpad = + gst_pad_new_from_static_template (&gst_video_rate_sink_template, "sink"); + gst_pad_set_event_function (videorate->sinkpad, gst_video_rate_event); + gst_pad_set_chain_function (videorate->sinkpad, gst_video_rate_chain); + gst_pad_set_getcaps_function (videorate->sinkpad, gst_video_rate_getcaps); + gst_pad_set_setcaps_function (videorate->sinkpad, gst_video_rate_setcaps); + gst_element_add_pad (GST_ELEMENT (videorate), videorate->sinkpad); + + videorate->srcpad = + gst_pad_new_from_static_template (&gst_video_rate_src_template, "src"); + gst_pad_set_query_function (videorate->srcpad, gst_video_rate_query); + gst_pad_set_getcaps_function (videorate->srcpad, gst_video_rate_getcaps); + gst_pad_set_setcaps_function (videorate->srcpad, gst_video_rate_setcaps); + gst_element_add_pad (GST_ELEMENT (videorate), videorate->srcpad); + + gst_video_rate_reset (videorate); + videorate->silent = DEFAULT_SILENT; + videorate->new_pref = DEFAULT_NEW_PREF; + + videorate->from_rate_numerator = 0; + videorate->from_rate_denominator = 0; + videorate->to_rate_numerator = 0; + videorate->to_rate_denominator = 0; + + videorate->first_pass_buffer = TRUE; +} + +/* flush the oldest buffer */ +static GstFlowReturn +gst_video_rate_flush_prev (GstVideoRate * videorate) +{ + GstFlowReturn res; + GstBuffer *outbuf; + GstClockTime push_ts; + + if (!videorate->prevbuf) + goto eos_before_buffers; + + /* make sure we can write to the metadata */ + outbuf = gst_buffer_make_metadata_writable + (gst_buffer_ref (videorate->prevbuf)); + + GST_BUFFER_OFFSET (outbuf) = videorate->out; + GST_BUFFER_OFFSET_END (outbuf) = videorate->out + 1; + + /* this is the timestamp we put on the buffer */ + push_ts = videorate->next_ts; + + videorate->out++; + videorate->segment_out++; + if (videorate->to_rate_numerator) { + /* interpolate next expected timestamp in the segment */ + videorate->next_ts = videorate->segment.accum + videorate->segment.start + + gst_util_uint64_scale (videorate->segment_out, + videorate->to_rate_denominator * GST_SECOND, + videorate->to_rate_numerator); + GST_BUFFER_DURATION (outbuf) = videorate->next_ts - push_ts; + } + + /* adapt for looping, bring back to time in current segment. */ + GST_BUFFER_TIMESTAMP (outbuf) = push_ts - videorate->segment.accum; + + gst_buffer_set_caps (outbuf, GST_PAD_CAPS (videorate->srcpad)); + + GST_LOG_OBJECT (videorate, + "old is best, dup, pushing buffer outgoing ts %" GST_TIME_FORMAT, + GST_TIME_ARGS (push_ts)); + + res = gst_pad_push (videorate->srcpad, outbuf); + + return res; + + /* WARNINGS */ +eos_before_buffers: + { + GST_INFO_OBJECT (videorate, "got EOS before any buffer was received"); + return GST_FLOW_OK; + } +} + +static void +gst_video_rate_swap_prev (GstVideoRate * videorate, GstBuffer * buffer, + gint64 time) +{ + GST_LOG_OBJECT (videorate, "swap_prev: storing buffer %p in prev", buffer); + if (videorate->prevbuf) + gst_buffer_unref (videorate->prevbuf); + videorate->prevbuf = buffer; + videorate->prev_ts = time; +} + +#define MAGIC_LIMIT 25 +static gboolean +gst_video_rate_event (GstPad * pad, GstEvent * event) +{ + GstVideoRate *videorate; + gboolean ret; + + videorate = GST_VIDEO_RATE (gst_pad_get_parent (pad)); + + switch (GST_EVENT_TYPE (event)) { + case GST_EVENT_NEWSEGMENT: + { + gint64 start, stop, time; + gdouble rate, arate; + gboolean update; + GstFormat format; + + gst_event_parse_new_segment_full (event, &update, &rate, &arate, &format, + &start, &stop, &time); + + if (format != GST_FORMAT_TIME) + goto format_error; + + GST_DEBUG_OBJECT (videorate, "handle NEWSEGMENT"); + + /* close up the previous segment, if appropriate */ + if (!update && videorate->prevbuf) { + gint count = 0; + GstFlowReturn res; + + res = GST_FLOW_OK; + /* fill up to the end of current segment, + * or only send out the stored buffer if there is no specific stop. + * regardless, prevent going loopy in strange cases */ + while (res == GST_FLOW_OK && count <= MAGIC_LIMIT && + ((GST_CLOCK_TIME_IS_VALID (videorate->segment.stop) && + videorate->next_ts - videorate->segment.accum + < videorate->segment.stop) + || count < 1)) { + gst_video_rate_flush_prev (videorate); + count++; + } + if (count > 1) { + videorate->dup += count - 1; + if (!videorate->silent) + g_object_notify (G_OBJECT (videorate), "duplicate"); + } else if (count == 0) { + videorate->drop++; + if (!videorate->silent) + g_object_notify (G_OBJECT (videorate), "drop"); + } + /* clean up for the new one; _chain will resume from the new start */ + videorate->segment_out = 0; + gst_video_rate_swap_prev (videorate, NULL, 0); + videorate->next_ts = GST_CLOCK_TIME_NONE; + } + + /* We just want to update the accumulated stream_time */ + gst_segment_set_newsegment_full (&videorate->segment, update, rate, arate, + format, start, stop, time); + + GST_DEBUG_OBJECT (videorate, "updated segment: %" GST_SEGMENT_FORMAT, + &videorate->segment); + break; + } + case GST_EVENT_EOS: + /* flush last queued frame */ + GST_DEBUG_OBJECT (videorate, "Got EOS"); + gst_video_rate_flush_prev (videorate); + break; + case GST_EVENT_FLUSH_STOP: + /* also resets the segment */ + GST_DEBUG_OBJECT (videorate, "Got FLUSH_STOP"); + gst_video_rate_reset (videorate); + break; + default: + break; + } + + ret = gst_pad_push_event (videorate->srcpad, event); + +done: + gst_object_unref (videorate); + + return ret; + + /* ERRORS */ +format_error: + { + GST_WARNING_OBJECT (videorate, + "Got segment but doesn't have GST_FORMAT_TIME value"); + gst_event_unref (event); + ret = FALSE; + goto done; + } +} + +static gboolean +gst_video_rate_query (GstPad * pad, GstQuery * query) +{ + GstVideoRate *videorate; + gboolean res = FALSE; + + videorate = GST_VIDEO_RATE (gst_pad_get_parent (pad)); + + switch (GST_QUERY_TYPE (query)) { + case GST_QUERY_LATENCY: + { + GstClockTime min, max; + gboolean live; + guint64 latency; + GstPad *peer; + + if ((peer = gst_pad_get_peer (videorate->sinkpad))) { + if ((res = gst_pad_query (peer, query))) { + gst_query_parse_latency (query, &live, &min, &max); + + GST_DEBUG_OBJECT (videorate, "Peer latency: min %" + GST_TIME_FORMAT " max %" GST_TIME_FORMAT, + GST_TIME_ARGS (min), GST_TIME_ARGS (max)); + + /* add latency. We don't really know since we hold on to the frames + * until we get a next frame, which can be anything. We assume + * however that this will take from_rate time. */ + latency = gst_util_uint64_scale (GST_SECOND, + videorate->from_rate_denominator, videorate->from_rate_numerator); + + GST_DEBUG_OBJECT (videorate, "Our latency: %" + GST_TIME_FORMAT, GST_TIME_ARGS (latency)); + + min += latency; + if (max != -1) + max += latency; + + GST_DEBUG_OBJECT (videorate, "Calculated total latency : min %" + GST_TIME_FORMAT " max %" GST_TIME_FORMAT, + GST_TIME_ARGS (min), GST_TIME_ARGS (max)); + + gst_query_set_latency (query, live, min, max); + } + gst_object_unref (peer); + } + break; + } + default: + res = gst_pad_query_default (pad, query); + break; + } + gst_object_unref (videorate); + + return res; +} + +static GstFlowReturn +gst_video_rate_chain (GstPad * pad, GstBuffer * buffer) +{ + GstVideoRate *videorate; + GstFlowReturn res = GST_FLOW_OK; + GstClockTime intime, in_ts; + + videorate = GST_VIDEO_RATE (GST_PAD_PARENT (pad)); + + /* make sure the denominators are not 0 */ + if (videorate->from_rate_denominator == 0 || + videorate->to_rate_denominator == 0) + goto not_negotiated; + + in_ts = GST_BUFFER_TIMESTAMP (buffer); + + if (G_UNLIKELY (in_ts == GST_CLOCK_TIME_NONE)) + goto invalid_buffer; + + GST_DEBUG_OBJECT (videorate, "got buffer with timestamp %" GST_TIME_FORMAT, + GST_TIME_ARGS (in_ts)); + + /* the input time is the time in the segment + all previously accumulated + * segments */ + intime = in_ts + videorate->segment.accum; + + /* we need to have two buffers to compare */ + if (videorate->prevbuf == NULL) { + gst_video_rate_swap_prev (videorate, buffer, intime); + videorate->in++; + if (!GST_CLOCK_TIME_IS_VALID (videorate->next_ts)) { + /* new buffer, we expect to output a buffer that matches the first + * timestamp in the segment */ + if (videorate->skip_to_first) { + videorate->next_ts = in_ts; + videorate->segment_out = gst_util_uint64_scale (in_ts, + videorate->to_rate_numerator, + videorate->to_rate_denominator * GST_SECOND) - + (videorate->segment.accum + videorate->segment.start); + } + else { + videorate->next_ts = videorate->segment.start + videorate->segment.accum; + } + } + } else { + GstClockTime prevtime; + gint count = 0; + gint64 diff1, diff2; + + prevtime = videorate->prev_ts; + + GST_LOG_OBJECT (videorate, + "BEGINNING prev buf %" GST_TIME_FORMAT " new buf %" GST_TIME_FORMAT + " outgoing ts %" GST_TIME_FORMAT, GST_TIME_ARGS (prevtime), + GST_TIME_ARGS (intime), GST_TIME_ARGS (videorate->next_ts)); + + videorate->in++; + + /* drop new buffer if it's before previous one */ + if (intime < prevtime) { + GST_DEBUG_OBJECT (videorate, + "The new buffer (%" GST_TIME_FORMAT + ") is before the previous buffer (%" + GST_TIME_FORMAT "). Dropping new buffer.", + GST_TIME_ARGS (intime), GST_TIME_ARGS (prevtime)); + videorate->drop++; + if (!videorate->silent) + g_object_notify (G_OBJECT (videorate), "drop"); + gst_buffer_unref (buffer); + goto done; + } + + /* got 2 buffers, see which one is the best */ + do { + + diff1 = prevtime - videorate->next_ts; + diff2 = intime - videorate->next_ts; + + /* take absolute values, beware: abs and ABS don't work for gint64 */ + if (diff1 < 0) + diff1 = -diff1; + if (diff2 < 0) + diff2 = -diff2; + + GST_LOG_OBJECT (videorate, + "diff with prev %" GST_TIME_FORMAT " diff with new %" + GST_TIME_FORMAT " outgoing ts %" GST_TIME_FORMAT, + GST_TIME_ARGS (diff1), GST_TIME_ARGS (diff2), + GST_TIME_ARGS (videorate->next_ts)); + + /* output first one when its the best */ + if (diff1 < diff2) { + count++; + + /* on error the _flush function posted a warning already */ + if ((res = gst_video_rate_flush_prev (videorate)) != GST_FLOW_OK) { + gst_buffer_unref (buffer); + goto done; + } + + // XXX let downstream theoraenc treat first buffer + // as a buffer with keyframe + if (videorate->first_pass_buffer == TRUE) { + videorate->first_pass_buffer = FALSE; + break; + } + } + /* continue while the first one was the best */ + } + while (diff1 < diff2); + + /* if we outputed the first buffer more then once, we have dups */ + if (count > 1) { + videorate->dup += count - 1; + if (!videorate->silent) + g_object_notify (G_OBJECT (videorate), "duplicate"); + } + /* if we didn't output the first buffer, we have a drop */ + else if (count == 0) { + videorate->drop++; + + if (!videorate->silent) + g_object_notify (G_OBJECT (videorate), "drop"); + + GST_LOG_OBJECT (videorate, + "new is best, old never used, drop, outgoing ts %" + GST_TIME_FORMAT, GST_TIME_ARGS (videorate->next_ts)); + } + GST_LOG_OBJECT (videorate, + "END, putting new in old, diff1 %" GST_TIME_FORMAT + ", diff2 %" GST_TIME_FORMAT ", next_ts %" GST_TIME_FORMAT + ", in %lld, out %lld, drop %lld, dup %lld", GST_TIME_ARGS (diff1), + GST_TIME_ARGS (diff2), GST_TIME_ARGS (videorate->next_ts), + videorate->in, videorate->out, videorate->drop, videorate->dup); + + /* swap in new one when it's the best */ + gst_video_rate_swap_prev (videorate, buffer, intime); + } +done: + return res; + + /* ERRORS */ +not_negotiated: + { + GST_WARNING_OBJECT (videorate, "no framerate negotiated"); + gst_buffer_unref (buffer); + res = GST_FLOW_NOT_NEGOTIATED; + goto done; + } + +invalid_buffer: + { + GST_WARNING_OBJECT (videorate, + "Got buffer with GST_CLOCK_TIME_NONE timestamp, discarding it"); + gst_buffer_unref (buffer); + goto done; + } +} + +static void +gst_video_rate_set_property (GObject * object, + guint prop_id, const GValue * value, GParamSpec * pspec) +{ + GstVideoRate *videorate = GST_VIDEO_RATE (object); + + switch (prop_id) { + case ARG_SILENT: + videorate->silent = g_value_get_boolean (value); + break; + case ARG_NEW_PREF: + videorate->new_pref = g_value_get_double (value); + break; + case ARG_SKIP_TO_FIRST: + videorate->skip_to_first = g_value_get_boolean (value); + break; + default: + G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); + break; + } +} + +static void +gst_video_rate_get_property (GObject * object, + guint prop_id, GValue * value, GParamSpec * pspec) +{ + GstVideoRate *videorate = GST_VIDEO_RATE (object); + + switch (prop_id) { + case ARG_IN: + g_value_set_uint64 (value, videorate->in); + break; + case ARG_OUT: + g_value_set_uint64 (value, videorate->out); + break; + case ARG_DUP: + g_value_set_uint64 (value, videorate->dup); + break; + case ARG_DROP: + g_value_set_uint64 (value, videorate->drop); + break; + case ARG_SILENT: + g_value_set_boolean (value, videorate->silent); + break; + case ARG_NEW_PREF: + g_value_set_double (value, videorate->new_pref); + break; + case ARG_SKIP_TO_FIRST: + g_value_set_boolean (value, videorate->skip_to_first); + break; + default: + G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); + break; + } +} + +static GstStateChangeReturn +gst_video_rate_change_state (GstElement * element, GstStateChange transition) +{ + GstStateChangeReturn ret; + GstVideoRate *videorate; + + videorate = GST_VIDEO_RATE (element); + + switch (transition) { + default: + break; + } + + ret = parent_class->change_state (element, transition); + + switch (transition) { + case GST_STATE_CHANGE_PAUSED_TO_READY: + gst_video_rate_reset (videorate); + break; + case GST_STATE_CHANGE_PAUSED_TO_PLAYING: + videorate->first_pass_buffer = TRUE; + default: + break; + } + + return ret; +} + +static gboolean +plugin_init (GstPlugin * plugin) +{ + GST_DEBUG_CATEGORY_INIT (video_rate_debug, "videorate", 0, + "VideoRate stream fixer"); + + return gst_element_register (plugin, "videorate", GST_RANK_NONE, + GST_TYPE_VIDEO_RATE); +} + +GST_PLUGIN_DEFINE (GST_VERSION_MAJOR, + GST_VERSION_MINOR, + "videorate", + "Adjusts video frames", + plugin_init, VERSION, GST_LICENSE, GST_PACKAGE_NAME, GST_PACKAGE_ORIGIN) diff --git a/gst/videorate/gstvideorate.h b/gst/videorate/gstvideorate.h new file mode 100644 index 0000000..01abcae --- /dev/null +++ b/gst/videorate/gstvideorate.h @@ -0,0 +1,81 @@ +/* GStreamer + * Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu> + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Library General Public + * License as published by the Free Software Foundation; either + * version 2 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Library General Public License for more details. + * + * You should have received a copy of the GNU Library General Public + * License along with this library; if not, write to the + * Free Software Foundation, Inc., 59 Temple Place - Suite 330, + * Boston, MA 02111-1307, USA. + */ + +#ifndef __GST_VIDEO_RATE_H__ +#define __GST_VIDEO_RATE_H__ + +#include <gst/gst.h> + +G_BEGIN_DECLS + +#define GST_TYPE_VIDEO_RATE \ + (gst_video_rate_get_type()) +#define GST_VIDEO_RATE(obj) \ + (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_VIDEO_RATE,GstVideoRate)) +#define GST_VIDEO_RATE_CLASS(klass) \ + (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_VIDEO_RATE,GstVideoRateClass)) +#define GST_IS_VIDEO_RATE(obj) \ + (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_VIDEO_RATE)) +#define GST_IS_VIDEO_RATE_CLASS(klass) \ + (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_VIDEO_RATE)) + +typedef struct _GstVideoRate GstVideoRate; +typedef struct _GstVideoRateClass GstVideoRateClass; + +/** + * GstVideoRate: + * + * Opaque data structure. + */ +struct _GstVideoRate +{ + GstElement element; + + GstPad *sinkpad, *srcpad; + + /* video state */ + gint from_rate_numerator, from_rate_denominator; + gint to_rate_numerator, to_rate_denominator; + guint64 next_ts; /* Timestamp of next buffer to output */ + GstBuffer *prevbuf; + guint64 prev_ts; /* Previous buffer timestamp */ + guint64 segment_out; /* in-segment counting */ + + /* segment handling */ + GstSegment segment; + + /* properties */ + guint64 in, out, dup, drop; + gboolean silent; + gdouble new_pref; + gboolean skip_to_first; + + // XXX let downstream theoraenc treat first buffer + // as a buffer with keyframe + gboolean first_pass_buffer; +}; + +struct _GstVideoRateClass +{ + GstElementClass parent_class; +}; + +G_END_DECLS + +#endif /* __GST_VIDEO_RATE_H__ */ diff --git a/gst/videorate/m4/Makefile.am b/gst/videorate/m4/Makefile.am new file mode 100644 index 0000000..4a44032 --- /dev/null +++ b/gst/videorate/m4/Makefile.am @@ -0,0 +1 @@ +EXTRA_DIST = as-version.m4 as-compiler-flag.m4 diff --git a/gst/videorate/m4/as-compiler-flag.m4 b/gst/videorate/m4/as-compiler-flag.m4 new file mode 100644 index 0000000..2f0ba19 --- /dev/null +++ b/gst/videorate/m4/as-compiler-flag.m4 @@ -0,0 +1,25 @@ +dnl as-compiler-flag.m4 0.0.1 +dnl autostars m4 macro for detection of compiler flags +dnl +dnl ds@schleef.org + +AC_DEFUN([AS_COMPILER_FLAG], +[ + AC_MSG_CHECKING([to see if compiler understands $1]) + + save_CFLAGS="$CFLAGS" + CFLAGS="$CFLAGS $1" + + AC_TRY_COMPILE([ ], [], [flag_ok=yes], [flag_ok=no]) + CFLAGS="$save_CFLAGS" + + if test "X$flag_ok" = Xyes ; then + $2 + true + else + $3 + true + fi + AC_MSG_RESULT([$flag_ok]) +]) + diff --git a/gst/videorate/m4/as-version.m4 b/gst/videorate/m4/as-version.m4 new file mode 100644 index 0000000..0bee437 --- /dev/null +++ b/gst/videorate/m4/as-version.m4 @@ -0,0 +1,66 @@ +dnl as-version.m4 0.1.0 + +dnl autostars m4 macro for versioning + +dnl Thomas Vander Stichele <thomas at apestaart dot org> + +dnl $Id: as-version.m4,v 1.2 2004-09-17 22:18:03 leroutier Exp $ + +dnl AS_VERSION(PACKAGE, PREFIX, MAJOR, MINOR, MICRO, NANO, +dnl ACTION-IF-NO-NANO, [ACTION-IF-NANO]) + +dnl example +dnl AS_VERSION(gstreamer, GST_VERSION, 0, 3, 2,) +dnl for a 0.3.2 release version + +dnl this macro +dnl - defines [$PREFIX]_MAJOR, MINOR and MICRO +dnl - if NANO is empty, then we're in release mode, else in cvs/dev mode +dnl - defines [$PREFIX], VERSION, and [$PREFIX]_RELEASE +dnl - executes the relevant action +dnl - AC_SUBST's PACKAGE, VERSION, [$PREFIX] and [$PREFIX]_RELEASE +dnl as well as the little ones +dnl - doesn't call AM_INIT_AUTOMAKE anymore because it prevents +dnl maintainer mode from running ok +dnl +dnl don't forget to put #undef [$2] and [$2]_RELEASE in acconfig.h +dnl if you use acconfig.h + +AC_DEFUN([AS_VERSION], +[ + PACKAGE=[$1] + [$2]_MAJOR=[$3] + [$2]_MINOR=[$4] + [$2]_MICRO=[$5] + NANO=[$6] + [$2]_NANO=$NANO + if test "x$NANO" = "x" || test "x$NANO" = "x0"; + then + AC_MSG_NOTICE(configuring [$1] for release) + VERSION=[$3].[$4].[$5] + [$2]_RELEASE=1 + dnl execute action + ifelse([$7], , :, [$7]) + else + AC_MSG_NOTICE(configuring [$1] for development with nano $NANO) + VERSION=[$3].[$4].[$5].$NANO + [$2]_RELEASE=0.`date +%Y%m%d.%H%M%S` + dnl execute action + ifelse([$8], , :, [$8]) + fi + + [$2]=$VERSION + AC_DEFINE_UNQUOTED([$2], "$[$2]", [Define the version]) + AC_SUBST([$2]) + AC_DEFINE_UNQUOTED([$2]_RELEASE, "$[$2]_RELEASE", [Define the release version]) + AC_SUBST([$2]_RELEASE) + + AC_SUBST([$2]_MAJOR) + AC_SUBST([$2]_MINOR) + AC_SUBST([$2]_MICRO) + AC_SUBST([$2]_NANO) + AC_DEFINE_UNQUOTED(PACKAGE, "$PACKAGE", [Define the package name]) + AC_SUBST(PACKAGE) + AC_DEFINE_UNQUOTED(VERSION, "$VERSION", [Define the version]) + AC_SUBST(VERSION) +]) diff --git a/gst/videorate/service/service.info b/gst/videorate/service/service.info new file mode 100644 index 0000000..d69dd5c --- /dev/null +++ b/gst/videorate/service/service.info @@ -0,0 +1,26 @@ +[DEFAULT] +uid = record-videorate +summary = record gst deps +license = LGPLv2+ +homepage = http://gstreamer.sourceforge.net + +[Service] +packaged = rpm gstreamer-plugins-base + suse gstreamer-0_10-plugins-base + debian gstreamer0.10-plugins-base + mandriva gstreamer0.10-plugins-base + gentoo media-libs/gst-plugins-base +binding = GST_PLUGIN_PATH lib/gstreamer-0.10 +include = libgstvideorate.so +machine = build + +[Build] +exec = "$SRCDIR"/configure + CFLAGS="%(cflags)s" + --prefix="$DISTDIR" + --disable-static + && make + && make install-strip + +[Maintain] +exec = ./autogen.sh && ./configure && make dist-bzip2 |