mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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configure.ac: add audioresample and cairo plugins. Remove
Original commit message from CVS: * configure.ac: add audioresample and cairo plugins. Remove HAVE_MMX stuff, because it's not used. * ext/Makefile.am: same * ext/audioresample/Makefile.am: You are not ready for an audio resampling element based on audioresample. * ext/audioresample/gstaudioresample.c: * ext/audioresample/gstaudioresample.h: * ext/cairo/Makefile.am: You are not ready for overlay elements based on cairo. Don't look too closely, these elements kinda suck right now. * ext/cairo/gstcairo.c: new * ext/cairo/gsttextoverlay.c: new * ext/cairo/gsttextoverlay.h: new * ext/cairo/gsttimeoverlay.c: new * ext/cairo/gsttimeoverlay.h: new * gst-libs/gst/media-info/media-info-priv.h: fix compile problem with compilers that don't support variadic macros.
This commit is contained in:
David Schleef
parent
4c750ac965
commit
0163a876c0
9 changed files with 1173 additions and 15 deletions
20
ChangeLog
20
ChangeLog
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@ -1,3 +1,23 @@
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2004-12-15 David Schleef <ds@schleef.org>
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* configure.ac: add audioresample and cairo plugins. Remove
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HAVE_MMX stuff, because it's not used.
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* ext/Makefile.am: same
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* ext/audioresample/Makefile.am: You are not ready for an
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audio resampling element based on audioresample.
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* ext/audioresample/gstaudioresample.c:
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* ext/audioresample/gstaudioresample.h:
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* ext/cairo/Makefile.am: You are not ready for overlay elements
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based on cairo. Don't look too closely, these elements kinda
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suck right now.
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* ext/cairo/gstcairo.c: new
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* ext/cairo/gsttextoverlay.c: new
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* ext/cairo/gsttextoverlay.h: new
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* ext/cairo/gsttimeoverlay.c: new
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* ext/cairo/gsttimeoverlay.h: new
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* gst-libs/gst/media-info/media-info-priv.h: fix compile
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problem with compilers that don't support variadic macros.
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2004-12-15 Balamurali Viswanathan <balamurali.viswanathan@wipro.com>
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2004-12-15 Balamurali Viswanathan <balamurali.viswanathan@wipro.com>
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Reviewed by: David Schleef <ds@schleef.org>
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Reviewed by: David Schleef <ds@schleef.org>
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33
configure.ac
33
configure.ac
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@ -806,6 +806,22 @@ GST_CHECK_FEATURE(AUDIOFILE, [audiofile], afsink afsrc, [
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AC_CHECK_LIB(audiofile, af_virtual_file_new, , HAVE_AUDIOFILE="no")
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AC_CHECK_LIB(audiofile, af_virtual_file_new, , HAVE_AUDIOFILE="no")
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fi])
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fi])
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dnl *** audioresample ***
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translit(dnm, m, l) AM_CONDITIONAL(USE_AUDIORESAMPLE, true)
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GST_CHECK_FEATURE(AUDIORESAMPLE, [audioresample plug-in], audioresample, [
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PKG_CHECK_MODULES(AUDIORESAMPLE, audioresample-0.1, HAVE_AUDIORESAMPLE=yes, HAVE_AUDIORESAMPLE=no)
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AC_SUBST(AUDIORESAMPLE_CFLAGS)
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AC_SUBST(AUDIORESAMPLE_LIBS)
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])
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dnl *** cairo ***
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translit(dnm, m, l) AM_CONDITIONAL(USE_CAIRO, true)
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GST_CHECK_FEATURE(CAIRO, [cairo plug-in], cairo, [
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PKG_CHECK_MODULES(CAIRO, cairo, HAVE_CAIRO=yes, HAVE_CAIRO=no)
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AC_SUBST(CAIRO_CFLAGS)
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AC_SUBST(CAIRO_LIBS)
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])
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dnl *** cdaudio ***
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dnl *** cdaudio ***
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translit(dnm, m, l) AM_CONDITIONAL(USE_CDAUDIO, true)
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translit(dnm, m, l) AM_CONDITIONAL(USE_CDAUDIO, true)
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GST_CHECK_FEATURE(CDAUDIO, [cdaudio], cdaudio, [
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GST_CHECK_FEATURE(CDAUDIO, [cdaudio], cdaudio, [
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@ -1722,15 +1738,6 @@ dnl ######################################################################
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dnl # Check command line parameters, and set shell variables accordingly #
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dnl # Check command line parameters, and set shell variables accordingly #
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dnl ######################################################################
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dnl ######################################################################
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AC_ARG_ENABLE(libmmx,
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AC_HELP_STRING([--enable-libmmx],[use libmmx, if available]),
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[case "${enableval}" in
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yes) USE_LIBMMX=$HAVE_LIBMMX ;;
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no) USE_LIBMMX=no ;;
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*) AC_MSG_ERROR(bad value ${enableval} for --enable-libmmx) ;;
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esac],
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[USE_LIBMMX=$HAVE_LIBMMX]) dnl Default value
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AC_ARG_ENABLE(atomic,
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AC_ARG_ENABLE(atomic,
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AC_HELP_STRING([--enable-atomic],[use atomic reference counting header]),
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AC_HELP_STRING([--enable-atomic],[use atomic reference counting header]),
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[case "${enableval}" in
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[case "${enableval}" in
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@ -1783,10 +1790,6 @@ dnl # Set defines according to variables set above #
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dnl ################################################
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dnl ################################################
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if test "x$USE_LIBMMX" = xyes; then
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AC_DEFINE(HAVE_LIBMMX, 1, [Define if libmmx is available])
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fi
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if test "x$USE_ATOMIC_H" = xyes; then
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if test "x$USE_ATOMIC_H" = xyes; then
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AC_DEFINE(HAVE_ATOMIC_H, 1, [Define if atomic.h header file is available])
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AC_DEFINE(HAVE_ATOMIC_H, 1, [Define if atomic.h header file is available])
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fi
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fi
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@ -1804,8 +1807,6 @@ dnl #############################
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dnl These should be "USE_*" instead of "HAVE_*", but some packages expect
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dnl These should be "USE_*" instead of "HAVE_*", but some packages expect
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dnl HAVE_ and it is likely to be easier to stick with the old name
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dnl HAVE_ and it is likely to be easier to stick with the old name
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AM_CONDITIONAL(HAVE_LIBMMX, test "x$USE_LIBMMX" = "xyes")
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AM_CONDITIONAL(HAVE_ATOMIC_H, test "x$USE_ATOMIC_H" = "xyes")
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AM_CONDITIONAL(HAVE_ATOMIC_H, test "x$USE_ATOMIC_H" = "xyes")
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AM_CONDITIONAL(EXPERIMENTAL, test "$EXPERIMENTAL" = "$xyes")
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AM_CONDITIONAL(EXPERIMENTAL, test "$EXPERIMENTAL" = "$xyes")
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@ -1980,6 +1981,8 @@ ext/alsa/Makefile
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ext/arts/Makefile
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ext/arts/Makefile
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ext/artsd/Makefile
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ext/artsd/Makefile
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ext/audiofile/Makefile
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ext/audiofile/Makefile
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ext/audioresample/Makefile
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ext/cairo/Makefile
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ext/cdaudio/Makefile
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ext/cdaudio/Makefile
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ext/cdparanoia/Makefile
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ext/cdparanoia/Makefile
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ext/dirac/Makefile
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ext/dirac/Makefile
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@ -34,6 +34,18 @@ else
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AUDIOFILE_DIR=
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AUDIOFILE_DIR=
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endif
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endif
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if USE_AUDIORESAMPLE
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AUDIORESAMPLE_DIR=audioresample
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else
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AUDIORESAMPLE_DIR=
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endif
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if USE_CAIRO
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CAIRO_DIR=cairo
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else
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CAIRO_DIR=
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endif
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if USE_CDAUDIO
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if USE_CDAUDIO
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CDAUDIO_DIR=cdaudio
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CDAUDIO_DIR=cdaudio
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else
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else
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@ -383,6 +395,8 @@ SUBDIRS=\
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$(ARTS_DIR) \
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$(ARTS_DIR) \
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$(ARTSC_DIR) \
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$(ARTSC_DIR) \
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$(AUDIOFILE_DIR) \
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$(AUDIOFILE_DIR) \
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$(AUDIORESAMPLE_DIR) \
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$(CAIRO_DIR) \
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$(CDAUDIO_DIR) \
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$(CDAUDIO_DIR) \
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$(CDPARANOIA_DIR) \
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$(CDPARANOIA_DIR) \
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$(DIRAC_DIR) \
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$(DIRAC_DIR) \
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@ -446,6 +460,8 @@ DIST_SUBDIRS=\
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arts \
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arts \
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artsd \
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artsd \
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audiofile \
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audiofile \
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audioresample \
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cairo \
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cdaudio \
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cdaudio \
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cdparanoia \
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cdparanoia \
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dirac \
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dirac \
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14
ext/cairo/Makefile.am
Normal file
14
ext/cairo/Makefile.am
Normal file
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@ -0,0 +1,14 @@
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plugin_LTLIBRARIES = libgstcairo.la
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noinst_HEADERS = gsttimeoverlay.h gsttextoverlay.h
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libgstcairo_la_SOURCES = \
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gsttimeoverlay.c \
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gsttextoverlay.c \
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gstcairo.c
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libgstcairo_la_CFLAGS = $(GST_CFLAGS) $(CAIRO_CFLAGS) \
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-I$(top_srcdir)/gst/videofilter
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libgstcairo_la_LIBADD =
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libgstcairo_la_LDFLAGS = $(GST_PLUGIN_LDFLAGS) $(CAIRO_LIBS) -lm
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46
ext/cairo/gstcairo.c
Normal file
46
ext/cairo/gstcairo.c
Normal file
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@ -0,0 +1,46 @@
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/* GStreamer
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* Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
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* Copyright (C) <2003,2004> David Schleef <ds@schleef.org>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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/*#define DEBUG_ENABLED */
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#include <gsttimeoverlay.h>
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#include <gsttextoverlay.h>
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#include <string.h>
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#include <math.h>
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static gboolean
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plugin_init (GstPlugin * plugin)
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{
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if (!gst_library_load ("gstvideofilter"))
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return FALSE;
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gst_element_register (plugin, "cairotextoverlay", GST_RANK_NONE,
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GST_TYPE_TEXTOVERLAY);
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gst_element_register (plugin, "cairotimeoverlay", GST_RANK_NONE,
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GST_TYPE_TIMEOVERLAY);
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return TRUE;
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}
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GST_PLUGIN_DEFINE (GST_VERSION_MAJOR, GST_VERSION_MINOR, "timeoverlay",
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"Time overlay", plugin_init, VERSION, GST_LICENSE, GST_PACKAGE, GST_ORIGIN)
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614
ext/cairo/gsttextoverlay.c
Normal file
614
ext/cairo/gsttextoverlay.c
Normal file
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@ -0,0 +1,614 @@
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/* GStreamer
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* Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
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* Copyright (C) <2003> David Schleef <ds@schleef.org>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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|
*
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|
* You should have received a copy of the GNU Library General Public
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|
* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#ifdef HAVE_CONFIG_H
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#include <config.h>
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#endif
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#include <gst/gst.h>
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#include "gsttextoverlay.h"
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static GstElementDetails textoverlay_details = {
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"Text Overlay",
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"Filter/Editor/Video",
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"Adds text strings on top of a video buffer",
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"David Schleef <ds@schleef.org>"
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};
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enum
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{
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ARG_0,
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ARG_TEXT,
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ARG_VALIGN,
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ARG_HALIGN,
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ARG_X0,
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ARG_Y0,
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ARG_FONT_DESC
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};
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static GstStaticPadTemplate textoverlay_src_template_factory =
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GST_STATIC_PAD_TEMPLATE ("src",
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GST_PAD_SRC,
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GST_PAD_ALWAYS,
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GST_STATIC_CAPS ("video/x-raw-yuv, "
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"format = (fourcc) I420, "
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"width = (int) [ 1, MAX ], " "height = (int) [ 1, MAX ]")
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|
);
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|
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static GstStaticPadTemplate video_sink_template_factory =
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GST_STATIC_PAD_TEMPLATE ("video_sink",
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GST_PAD_SINK,
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GST_PAD_ALWAYS,
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GST_STATIC_CAPS ("video/x-raw-yuv, "
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"format = (fourcc) I420, "
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"width = (int) [ 1, MAX ], " "height = (int) [ 1, MAX ]")
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|
);
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|
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|
static GstStaticPadTemplate text_sink_template_factory =
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GST_STATIC_PAD_TEMPLATE ("text_sink",
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GST_PAD_SINK,
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GST_PAD_ALWAYS,
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|
GST_STATIC_CAPS ("text/plain")
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|
);
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|
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|
static void gst_textoverlay_base_init (gpointer g_class);
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|
static void gst_textoverlay_class_init (GstTextOverlayClass * klass);
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|
static void gst_textoverlay_init (GstTextOverlay * overlay);
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|
static void gst_textoverlay_set_property (GObject * object,
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|
guint prop_id, const GValue * value, GParamSpec * pspec);
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|
static void gst_textoverlay_get_property (GObject * object,
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|
guint prop_id, GValue * value, GParamSpec * pspec);
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static GstElementStateReturn gst_textoverlay_change_state (GstElement *
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|
element);
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static void gst_textoverlay_finalize (GObject * object);
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|
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|
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static GstElementClass *parent_class = NULL;
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|
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|
/*static guint gst_textoverlay_signals[LAST_SIGNAL] = { 0 }; */
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|
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|
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|
GType
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|
gst_textoverlay_get_type (void)
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|
{
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|
static GType textoverlay_type = 0;
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|
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|
if (!textoverlay_type) {
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|
static const GTypeInfo textoverlay_info = {
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|
sizeof (GstTextOverlayClass),
|
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|
gst_textoverlay_base_init,
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|
NULL,
|
||||||
|
(GClassInitFunc) gst_textoverlay_class_init,
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NULL,
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|
NULL,
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sizeof (GstTextOverlay),
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|
0,
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(GInstanceInitFunc) gst_textoverlay_init,
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|
};
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|
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textoverlay_type =
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g_type_register_static (GST_TYPE_ELEMENT, "GstTextOverlay",
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&textoverlay_info, 0);
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}
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return textoverlay_type;
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}
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|
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static void
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|
gst_textoverlay_base_init (gpointer g_class)
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|
{
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|
GstElementClass *element_class = GST_ELEMENT_CLASS (g_class);
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|
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gst_element_class_add_pad_template (element_class,
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gst_static_pad_template_get (&textoverlay_src_template_factory));
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gst_element_class_add_pad_template (element_class,
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gst_static_pad_template_get (&video_sink_template_factory));
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gst_element_class_add_pad_template (element_class,
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gst_static_pad_template_get (&text_sink_template_factory));
|
||||||
|
|
||||||
|
gst_element_class_set_details (element_class, &textoverlay_details);
|
||||||
|
}
|
||||||
|
|
||||||
|
static void
|
||||||
|
gst_textoverlay_class_init (GstTextOverlayClass * klass)
|
||||||
|
{
|
||||||
|
GObjectClass *gobject_class;
|
||||||
|
GstElementClass *gstelement_class;
|
||||||
|
|
||||||
|
gobject_class = (GObjectClass *) klass;
|
||||||
|
gstelement_class = (GstElementClass *) klass;
|
||||||
|
|
||||||
|
parent_class = g_type_class_peek_parent (klass);
|
||||||
|
|
||||||
|
gobject_class->finalize = gst_textoverlay_finalize;
|
||||||
|
gobject_class->set_property = gst_textoverlay_set_property;
|
||||||
|
gobject_class->get_property = gst_textoverlay_get_property;
|
||||||
|
|
||||||
|
gstelement_class->change_state = gst_textoverlay_change_state;
|
||||||
|
g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_TEXT,
|
||||||
|
g_param_spec_string ("text", "text",
|
||||||
|
"Text to be display.", "", G_PARAM_WRITABLE));
|
||||||
|
g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_VALIGN,
|
||||||
|
g_param_spec_string ("valign", "vertical alignment",
|
||||||
|
"Vertical alignment of the text. "
|
||||||
|
"Can be either 'baseline', 'bottom', or 'top'",
|
||||||
|
"baseline", G_PARAM_WRITABLE));
|
||||||
|
g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_HALIGN,
|
||||||
|
g_param_spec_string ("halign", "horizontal alignment",
|
||||||
|
"Horizontal alignment of the text. "
|
||||||
|
"Can be either 'left', 'right', or 'center'",
|
||||||
|
"center", G_PARAM_WRITABLE));
|
||||||
|
g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_X0,
|
||||||
|
g_param_spec_int ("x0", "X position",
|
||||||
|
"Initial X position."
|
||||||
|
" Horizontal aligment takes this point"
|
||||||
|
" as reference.", G_MININT, G_MAXINT, 0, G_PARAM_WRITABLE));
|
||||||
|
g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_Y0,
|
||||||
|
g_param_spec_int ("y0", "Y position",
|
||||||
|
"Initial Y position."
|
||||||
|
" Vertical aligment takes this point"
|
||||||
|
" as reference.", G_MININT, G_MAXINT, 0, G_PARAM_WRITABLE));
|
||||||
|
g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_FONT_DESC,
|
||||||
|
g_param_spec_string ("font-desc", "font description",
|
||||||
|
"Pango font description of font "
|
||||||
|
"to be used for rendering. "
|
||||||
|
"See documentation of "
|
||||||
|
"pango_font_description_from_string"
|
||||||
|
" for syntax.", "", G_PARAM_WRITABLE));
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
#if 0
|
||||||
|
static void
|
||||||
|
resize_bitmap (GstTextOverlay * overlay, int width, int height)
|
||||||
|
{
|
||||||
|
FT_Bitmap *bitmap = &overlay->bitmap;
|
||||||
|
int pitch = (width | 3) + 1;
|
||||||
|
int size = pitch * height;
|
||||||
|
|
||||||
|
/* no need to keep reallocating; just keep the maximum size so far */
|
||||||
|
if (size <= overlay->bitmap_buffer_size) {
|
||||||
|
bitmap->rows = height;
|
||||||
|
bitmap->width = width;
|
||||||
|
bitmap->pitch = pitch;
|
||||||
|
memset (bitmap->buffer, 0, overlay->bitmap_buffer_size);
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
if (!bitmap->buffer) {
|
||||||
|
/* initialize */
|
||||||
|
bitmap->pixel_mode = ft_pixel_mode_grays;
|
||||||
|
bitmap->num_grays = 256;
|
||||||
|
}
|
||||||
|
if (bitmap->buffer)
|
||||||
|
bitmap->buffer = g_realloc (bitmap->buffer, size);
|
||||||
|
else
|
||||||
|
bitmap->buffer = g_malloc (size);
|
||||||
|
bitmap->rows = height;
|
||||||
|
bitmap->width = width;
|
||||||
|
bitmap->pitch = pitch;
|
||||||
|
memset (bitmap->buffer, 0, size);
|
||||||
|
overlay->bitmap_buffer_size = size;
|
||||||
|
}
|
||||||
|
#endif
|
||||||
|
|
||||||
|
static void
|
||||||
|
gst_textoverlay_render_text (GstTextOverlay * overlay, gchar * text,
|
||||||
|
int textlen)
|
||||||
|
{
|
||||||
|
cairo_text_extents_t extents;
|
||||||
|
char *string;
|
||||||
|
|
||||||
|
string = g_strdup_printf ("%.*s", textlen, text);
|
||||||
|
|
||||||
|
if (overlay->pixbuf)
|
||||||
|
g_free (overlay->pixbuf);
|
||||||
|
overlay->pixbuf = g_malloc (4 * overlay->width * overlay->text_height);
|
||||||
|
cairo_set_target_image (overlay->cr, overlay->pixbuf, CAIRO_FORMAT_ARGB32,
|
||||||
|
overlay->width, overlay->text_height, overlay->width * 4);
|
||||||
|
|
||||||
|
cairo_save (overlay->cr);
|
||||||
|
cairo_rectangle (overlay->cr, 0, 0, overlay->width, overlay->text_height);
|
||||||
|
cairo_set_alpha (overlay->cr, 0.0);
|
||||||
|
cairo_set_operator (overlay->cr, CAIRO_OPERATOR_SRC);
|
||||||
|
cairo_fill (overlay->cr);
|
||||||
|
cairo_restore (overlay->cr);
|
||||||
|
|
||||||
|
cairo_save (overlay->cr);
|
||||||
|
cairo_text_extents (overlay->cr, string, &extents);
|
||||||
|
cairo_set_rgb_color (overlay->cr, 1, 1, 1);
|
||||||
|
cairo_move_to (overlay->cr, 0, overlay->text_height - 2);
|
||||||
|
cairo_show_text (overlay->cr, string);
|
||||||
|
|
||||||
|
cairo_text_path (overlay->cr, string);
|
||||||
|
cairo_set_rgb_color (overlay->cr, 0, 0, 0);
|
||||||
|
cairo_set_line_width (overlay->cr, 1.0);
|
||||||
|
cairo_stroke (overlay->cr);
|
||||||
|
|
||||||
|
g_free (string);
|
||||||
|
|
||||||
|
cairo_restore (overlay->cr);
|
||||||
|
|
||||||
|
overlay->text_width = MIN (extents.width, overlay->width);
|
||||||
|
}
|
||||||
|
|
||||||
|
/* static GstPadLinkReturn */
|
||||||
|
/* gst_textoverlay_text_sinkconnect (GstPad *pad, GstCaps *caps) */
|
||||||
|
/* { */
|
||||||
|
/* return GST_PAD_LINK_DONE; */
|
||||||
|
/* } */
|
||||||
|
|
||||||
|
|
||||||
|
static GstPadLinkReturn
|
||||||
|
gst_textoverlay_video_sinkconnect (GstPad * pad, const GstCaps * caps)
|
||||||
|
{
|
||||||
|
GstTextOverlay *overlay;
|
||||||
|
GstStructure *structure;
|
||||||
|
|
||||||
|
overlay = GST_TEXTOVERLAY (gst_pad_get_parent (pad));
|
||||||
|
|
||||||
|
structure = gst_caps_get_structure (caps, 0);
|
||||||
|
overlay->width = overlay->height = 0;
|
||||||
|
gst_structure_get_int (structure, "width", &overlay->width);
|
||||||
|
gst_structure_get_int (structure, "height", &overlay->height);
|
||||||
|
|
||||||
|
return gst_pad_try_set_caps (overlay->srcpad, caps);
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
static void
|
||||||
|
gst_text_overlay_blit_yuv420 (GstTextOverlay * overlay, guchar * pixbuf,
|
||||||
|
int x0, int y0)
|
||||||
|
{
|
||||||
|
int i;
|
||||||
|
int j;
|
||||||
|
int x, a, y;
|
||||||
|
|
||||||
|
if (x0 < 0)
|
||||||
|
x0 = 0;
|
||||||
|
if (y0 < 0)
|
||||||
|
y0 = 0;
|
||||||
|
|
||||||
|
GST_LOG ("%d %d %d %d %d %d %p", overlay->text_width, overlay->text_height,
|
||||||
|
overlay->width, overlay->height, x0, y0, pixbuf);
|
||||||
|
|
||||||
|
for (i = 0; i < overlay->text_height; i++) {
|
||||||
|
for (j = 0; j < overlay->text_width; j++) {
|
||||||
|
#if 0
|
||||||
|
x = pixbuf[(i + y0) * overlay->width + (j + x0)];
|
||||||
|
a = overlay->pixbuf[4 * (i * overlay->width + j) + 0];
|
||||||
|
y = overlay->pixbuf[4 * (i * overlay->width + j) + 1];
|
||||||
|
pixbuf[(i + y0) * overlay->width + (j + x0)] =
|
||||||
|
(y * a + x * (255 - a)) / 255;
|
||||||
|
#endif
|
||||||
|
x = a = 0;
|
||||||
|
y = overlay->pixbuf[4 * (i * overlay->width + j) + 1];
|
||||||
|
pixbuf[(i + y0) * overlay->width + (j + x0)] = y;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
static void
|
||||||
|
gst_textoverlay_video_chain (GstPad * pad, GstData * _data)
|
||||||
|
{
|
||||||
|
GstBuffer *buf = GST_BUFFER (_data);
|
||||||
|
GstTextOverlay *overlay;
|
||||||
|
guchar *pixbuf;
|
||||||
|
gint x0, y0;
|
||||||
|
|
||||||
|
g_return_if_fail (pad != NULL);
|
||||||
|
g_return_if_fail (GST_IS_PAD (pad));
|
||||||
|
g_return_if_fail (buf != NULL);
|
||||||
|
overlay = GST_TEXTOVERLAY (gst_pad_get_parent (pad));
|
||||||
|
g_return_if_fail (overlay != NULL);
|
||||||
|
g_return_if_fail (GST_IS_TEXTOVERLAY (overlay));
|
||||||
|
|
||||||
|
if (!GST_IS_BUFFER (_data))
|
||||||
|
return;
|
||||||
|
|
||||||
|
pixbuf = GST_BUFFER_DATA (buf);
|
||||||
|
|
||||||
|
x0 = overlay->x0;
|
||||||
|
y0 = overlay->y0;
|
||||||
|
switch (overlay->valign) {
|
||||||
|
case GST_TEXT_OVERLAY_VALIGN_BOTTOM:
|
||||||
|
y0 -= overlay->text_height;
|
||||||
|
break;
|
||||||
|
case GST_TEXT_OVERLAY_VALIGN_BASELINE:
|
||||||
|
#define BASELINE 2
|
||||||
|
y0 -= (overlay->text_height - BASELINE);
|
||||||
|
break;
|
||||||
|
case GST_TEXT_OVERLAY_VALIGN_TOP:
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
|
||||||
|
switch (overlay->halign) {
|
||||||
|
case GST_TEXT_OVERLAY_HALIGN_LEFT:
|
||||||
|
break;
|
||||||
|
case GST_TEXT_OVERLAY_HALIGN_RIGHT:
|
||||||
|
x0 -= overlay->text_width;
|
||||||
|
break;
|
||||||
|
case GST_TEXT_OVERLAY_HALIGN_CENTER:
|
||||||
|
x0 -= overlay->text_width;
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
|
||||||
|
gst_text_overlay_blit_yuv420 (overlay, pixbuf, x0, y0);
|
||||||
|
|
||||||
|
gst_pad_push (overlay->srcpad, GST_DATA (buf));
|
||||||
|
}
|
||||||
|
|
||||||
|
#define PAST_END(buffer, time) \
|
||||||
|
(GST_BUFFER_TIMESTAMP (buffer) != GST_CLOCK_TIME_NONE && \
|
||||||
|
GST_BUFFER_DURATION (buffer) != GST_CLOCK_TIME_NONE && \
|
||||||
|
GST_BUFFER_TIMESTAMP (buffer) + GST_BUFFER_DURATION (buffer) \
|
||||||
|
< (time))
|
||||||
|
|
||||||
|
static void
|
||||||
|
gst_textoverlay_loop (GstElement * element)
|
||||||
|
{
|
||||||
|
GstTextOverlay *overlay;
|
||||||
|
GstBuffer *video_frame;
|
||||||
|
guint64 now;
|
||||||
|
|
||||||
|
g_return_if_fail (element != NULL);
|
||||||
|
g_return_if_fail (GST_IS_TEXTOVERLAY (element));
|
||||||
|
overlay = GST_TEXTOVERLAY (element);
|
||||||
|
|
||||||
|
video_frame = GST_BUFFER (gst_pad_pull (overlay->video_sinkpad));
|
||||||
|
now = GST_BUFFER_TIMESTAMP (video_frame);
|
||||||
|
|
||||||
|
/*
|
||||||
|
* This state machine has a bug that can't be resolved easily.
|
||||||
|
* (Needs a more complicated state machine.) Basically, if the
|
||||||
|
* text that came from a buffer from the sink pad is being
|
||||||
|
* displayed, and the default text is changed by set_parameter,
|
||||||
|
* we'll incorrectly display the default text.
|
||||||
|
*
|
||||||
|
* Otherwise, this is a pretty decent state machine that handles
|
||||||
|
* buffer timestamps and durations correctly. (I think)
|
||||||
|
*/
|
||||||
|
|
||||||
|
while (overlay->next_buffer == NULL) {
|
||||||
|
GST_DEBUG ("attempting to pull a buffer");
|
||||||
|
|
||||||
|
/* read all text buffers until we get one "in the future" */
|
||||||
|
if (!GST_PAD_IS_USABLE (overlay->text_sinkpad)) {
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
overlay->next_buffer = GST_BUFFER (gst_pad_pull (overlay->text_sinkpad));
|
||||||
|
if (!overlay->next_buffer)
|
||||||
|
break;
|
||||||
|
|
||||||
|
if (PAST_END (overlay->next_buffer, now)) {
|
||||||
|
gst_buffer_unref (overlay->next_buffer);
|
||||||
|
overlay->next_buffer = NULL;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
if (overlay->next_buffer &&
|
||||||
|
(GST_BUFFER_TIMESTAMP (overlay->next_buffer) <= now ||
|
||||||
|
GST_BUFFER_TIMESTAMP (overlay->next_buffer) == GST_CLOCK_TIME_NONE)) {
|
||||||
|
GST_DEBUG ("using new buffer");
|
||||||
|
|
||||||
|
if (overlay->current_buffer) {
|
||||||
|
gst_buffer_unref (overlay->current_buffer);
|
||||||
|
}
|
||||||
|
overlay->current_buffer = overlay->next_buffer;
|
||||||
|
overlay->next_buffer = NULL;
|
||||||
|
|
||||||
|
GST_DEBUG ("rendering '%*s'",
|
||||||
|
GST_BUFFER_SIZE (overlay->current_buffer),
|
||||||
|
GST_BUFFER_DATA (overlay->current_buffer));
|
||||||
|
gst_textoverlay_render_text (overlay,
|
||||||
|
GST_BUFFER_DATA (overlay->current_buffer),
|
||||||
|
GST_BUFFER_SIZE (overlay->current_buffer));
|
||||||
|
overlay->need_render = FALSE;
|
||||||
|
}
|
||||||
|
|
||||||
|
if (overlay->current_buffer && PAST_END (overlay->current_buffer, now)) {
|
||||||
|
GST_DEBUG ("dropping old buffer");
|
||||||
|
|
||||||
|
gst_buffer_unref (overlay->current_buffer);
|
||||||
|
overlay->current_buffer = NULL;
|
||||||
|
|
||||||
|
overlay->need_render = TRUE;
|
||||||
|
}
|
||||||
|
|
||||||
|
if (overlay->need_render) {
|
||||||
|
GST_DEBUG ("rendering '%s'", overlay->default_text);
|
||||||
|
gst_textoverlay_render_text (overlay,
|
||||||
|
overlay->default_text, strlen (overlay->default_text));
|
||||||
|
|
||||||
|
overlay->need_render = FALSE;
|
||||||
|
}
|
||||||
|
|
||||||
|
gst_textoverlay_video_chain (overlay->srcpad, GST_DATA (video_frame));
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
static GstElementStateReturn
|
||||||
|
gst_textoverlay_change_state (GstElement * element)
|
||||||
|
{
|
||||||
|
GstTextOverlay *overlay;
|
||||||
|
|
||||||
|
overlay = GST_TEXTOVERLAY (element);
|
||||||
|
|
||||||
|
switch (GST_STATE_TRANSITION (element)) {
|
||||||
|
case GST_STATE_PAUSED_TO_PLAYING:
|
||||||
|
break;
|
||||||
|
case GST_STATE_PLAYING_TO_PAUSED:
|
||||||
|
break;
|
||||||
|
case GST_STATE_PAUSED_TO_READY:
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
|
||||||
|
parent_class->change_state (element);
|
||||||
|
|
||||||
|
return GST_STATE_SUCCESS;
|
||||||
|
}
|
||||||
|
|
||||||
|
static void
|
||||||
|
gst_textoverlay_finalize (GObject * object)
|
||||||
|
{
|
||||||
|
GstTextOverlay *overlay = GST_TEXTOVERLAY (object);
|
||||||
|
|
||||||
|
if (overlay->cr) {
|
||||||
|
cairo_destroy (overlay->cr);
|
||||||
|
}
|
||||||
|
|
||||||
|
G_OBJECT_CLASS (parent_class)->finalize (object);
|
||||||
|
}
|
||||||
|
|
||||||
|
static void
|
||||||
|
gst_textoverlay_init (GstTextOverlay * overlay)
|
||||||
|
{
|
||||||
|
cairo_font_extents_t font_extents;
|
||||||
|
|
||||||
|
/* video sink */
|
||||||
|
overlay->video_sinkpad =
|
||||||
|
gst_pad_new_from_template (gst_static_pad_template_get
|
||||||
|
(&video_sink_template_factory), "video_sink");
|
||||||
|
gst_pad_set_link_function (overlay->video_sinkpad,
|
||||||
|
gst_textoverlay_video_sinkconnect);
|
||||||
|
gst_element_add_pad (GST_ELEMENT (overlay), overlay->video_sinkpad);
|
||||||
|
|
||||||
|
/* text sink */
|
||||||
|
overlay->text_sinkpad =
|
||||||
|
gst_pad_new_from_template (gst_static_pad_template_get
|
||||||
|
(&text_sink_template_factory), "text_sink");
|
||||||
|
gst_element_add_pad (GST_ELEMENT (overlay), overlay->text_sinkpad);
|
||||||
|
|
||||||
|
/* (video) source */
|
||||||
|
overlay->srcpad =
|
||||||
|
gst_pad_new_from_template (gst_static_pad_template_get
|
||||||
|
(&textoverlay_src_template_factory), "src");
|
||||||
|
gst_element_add_pad (GST_ELEMENT (overlay), overlay->srcpad);
|
||||||
|
|
||||||
|
overlay->cr = cairo_create ();
|
||||||
|
|
||||||
|
overlay->halign = GST_TEXT_OVERLAY_HALIGN_CENTER;
|
||||||
|
overlay->valign = GST_TEXT_OVERLAY_VALIGN_BASELINE;
|
||||||
|
overlay->x0 = overlay->y0 = 0;
|
||||||
|
|
||||||
|
overlay->default_text = g_strdup ("");
|
||||||
|
overlay->need_render = TRUE;
|
||||||
|
|
||||||
|
cairo_select_font (overlay->cr, "sans", 0, 0);
|
||||||
|
cairo_scale_font (overlay->cr, 50);
|
||||||
|
|
||||||
|
cairo_current_font_extents (overlay->cr, &font_extents);
|
||||||
|
overlay->text_height = font_extents.height;
|
||||||
|
|
||||||
|
gst_element_set_loop_function (GST_ELEMENT (overlay), gst_textoverlay_loop);
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
static void
|
||||||
|
gst_textoverlay_set_property (GObject * object, guint prop_id,
|
||||||
|
const GValue * value, GParamSpec * pspec)
|
||||||
|
{
|
||||||
|
GstTextOverlay *overlay;
|
||||||
|
|
||||||
|
/* it's not null if we got it, but it might not be ours */
|
||||||
|
g_return_if_fail (GST_IS_TEXTOVERLAY (object));
|
||||||
|
overlay = GST_TEXTOVERLAY (object);
|
||||||
|
|
||||||
|
switch (prop_id) {
|
||||||
|
|
||||||
|
case ARG_TEXT:
|
||||||
|
if (overlay->default_text) {
|
||||||
|
g_free (overlay->default_text);
|
||||||
|
}
|
||||||
|
overlay->default_text = g_strdup (g_value_get_string (value));
|
||||||
|
overlay->need_render = TRUE;
|
||||||
|
break;
|
||||||
|
|
||||||
|
case ARG_VALIGN:
|
||||||
|
if (strcasecmp (g_value_get_string (value), "baseline") == 0)
|
||||||
|
overlay->valign = GST_TEXT_OVERLAY_VALIGN_BASELINE;
|
||||||
|
else if (strcasecmp (g_value_get_string (value), "bottom") == 0)
|
||||||
|
overlay->valign = GST_TEXT_OVERLAY_VALIGN_BOTTOM;
|
||||||
|
else if (strcasecmp (g_value_get_string (value), "top") == 0)
|
||||||
|
overlay->valign = GST_TEXT_OVERLAY_VALIGN_TOP;
|
||||||
|
else
|
||||||
|
g_warning ("Invalid 'valign' property value: %s",
|
||||||
|
g_value_get_string (value));
|
||||||
|
break;
|
||||||
|
|
||||||
|
case ARG_HALIGN:
|
||||||
|
if (strcasecmp (g_value_get_string (value), "left") == 0)
|
||||||
|
overlay->halign = GST_TEXT_OVERLAY_HALIGN_LEFT;
|
||||||
|
else if (strcasecmp (g_value_get_string (value), "right") == 0)
|
||||||
|
overlay->halign = GST_TEXT_OVERLAY_HALIGN_RIGHT;
|
||||||
|
else if (strcasecmp (g_value_get_string (value), "center") == 0)
|
||||||
|
overlay->halign = GST_TEXT_OVERLAY_HALIGN_CENTER;
|
||||||
|
else
|
||||||
|
g_warning ("Invalid 'halign' property value: %s",
|
||||||
|
g_value_get_string (value));
|
||||||
|
break;
|
||||||
|
|
||||||
|
case ARG_X0:
|
||||||
|
overlay->x0 = g_value_get_int (value);
|
||||||
|
break;
|
||||||
|
|
||||||
|
case ARG_Y0:
|
||||||
|
overlay->y0 = g_value_get_int (value);
|
||||||
|
break;
|
||||||
|
|
||||||
|
case ARG_FONT_DESC:
|
||||||
|
{
|
||||||
|
#if 0
|
||||||
|
PangoFontDescription *desc;
|
||||||
|
|
||||||
|
desc = pango_font_description_from_string (g_value_get_string (value));
|
||||||
|
if (desc) {
|
||||||
|
g_message ("font description set: %s", g_value_get_string (value));
|
||||||
|
pango_layout_set_font_description (overlay->layout, desc);
|
||||||
|
pango_font_description_free (desc);
|
||||||
|
render_text (overlay);
|
||||||
|
} else
|
||||||
|
g_warning ("font description parse failed: %s",
|
||||||
|
g_value_get_string (value));
|
||||||
|
#endif
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
|
||||||
|
default:
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
static void
|
||||||
|
gst_textoverlay_get_property (GObject * object, guint prop_id, GValue * value,
|
||||||
|
GParamSpec * pspec)
|
||||||
|
{
|
||||||
|
GstTextOverlay *overlay;
|
||||||
|
|
||||||
|
/* it's not null if we got it, but it might not be ours */
|
||||||
|
g_return_if_fail (GST_IS_TEXTOVERLAY (object));
|
||||||
|
overlay = GST_TEXTOVERLAY (object);
|
||||||
|
|
||||||
|
switch (prop_id) {
|
||||||
|
default:
|
||||||
|
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
}
|
||||||
75
ext/cairo/gsttextoverlay.h
Normal file
75
ext/cairo/gsttextoverlay.h
Normal file
|
|
@ -0,0 +1,75 @@
|
||||||
|
|
||||||
|
#ifndef __GST_TEXTOVERLAY_H__
|
||||||
|
#define __GST_TEXTOVERLAY_H__
|
||||||
|
|
||||||
|
#include <gst/gst.h>
|
||||||
|
#include <cairo.h>
|
||||||
|
|
||||||
|
G_BEGIN_DECLS
|
||||||
|
|
||||||
|
#define GST_TYPE_TEXTOVERLAY (gst_textoverlay_get_type())
|
||||||
|
#define GST_TEXTOVERLAY(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj),\
|
||||||
|
GST_TYPE_TEXTOVERLAY, GstTextOverlay))
|
||||||
|
#define GST_TEXTOVERLAY_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass),\
|
||||||
|
GST_TYPE_ULAW, GstTextOverlay))
|
||||||
|
#define GST_TEXTOVERLAY_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj),\
|
||||||
|
GST_TYPE_TEXTOVERLAY, GstTextOverlayClass))
|
||||||
|
#define GST_IS_TEXTOVERLAY(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj),\
|
||||||
|
GST_TYPE_TEXTOVERLAY))
|
||||||
|
#define GST_IS_TEXTOVERLAY_CLASS(obj) (G_TYPE_CHECK_CLASS_TYPE((klass),\
|
||||||
|
GST_TYPE_TEXTOVERLAY))
|
||||||
|
|
||||||
|
typedef struct _GstTextOverlay GstTextOverlay;
|
||||||
|
typedef struct _GstTextOverlayClass GstTextOverlayClass;
|
||||||
|
|
||||||
|
typedef enum _GstTextOverlayVAlign GstTextOverlayVAlign;
|
||||||
|
typedef enum _GstTextOverlayHAlign GstTextOverlayHAlign;
|
||||||
|
|
||||||
|
enum _GstTextOverlayVAlign {
|
||||||
|
GST_TEXT_OVERLAY_VALIGN_BASELINE,
|
||||||
|
GST_TEXT_OVERLAY_VALIGN_BOTTOM,
|
||||||
|
GST_TEXT_OVERLAY_VALIGN_TOP
|
||||||
|
};
|
||||||
|
|
||||||
|
enum _GstTextOverlayHAlign {
|
||||||
|
GST_TEXT_OVERLAY_HALIGN_LEFT,
|
||||||
|
GST_TEXT_OVERLAY_HALIGN_CENTER,
|
||||||
|
GST_TEXT_OVERLAY_HALIGN_RIGHT
|
||||||
|
};
|
||||||
|
|
||||||
|
|
||||||
|
struct _GstTextOverlay {
|
||||||
|
GstElement element;
|
||||||
|
|
||||||
|
GstPad *video_sinkpad;
|
||||||
|
GstPad *text_sinkpad;
|
||||||
|
GstPad *srcpad;
|
||||||
|
gint width;
|
||||||
|
gint height;
|
||||||
|
|
||||||
|
GstTextOverlayVAlign valign;
|
||||||
|
GstTextOverlayHAlign halign;
|
||||||
|
gint x0;
|
||||||
|
gint y0;
|
||||||
|
gchar *default_text;
|
||||||
|
|
||||||
|
cairo_t *cr;
|
||||||
|
guchar *pixbuf;
|
||||||
|
int text_width;
|
||||||
|
int text_height;
|
||||||
|
|
||||||
|
GstBuffer *current_buffer;
|
||||||
|
GstBuffer *next_buffer;
|
||||||
|
gboolean need_render;
|
||||||
|
|
||||||
|
};
|
||||||
|
|
||||||
|
struct _GstTextOverlayClass {
|
||||||
|
GstElementClass parent_class;
|
||||||
|
};
|
||||||
|
|
||||||
|
GType gst_textoverlay_get_type(void) G_GNUC_CONST;
|
||||||
|
|
||||||
|
G_END_DECLS
|
||||||
|
|
||||||
|
#endif /* __GST_TEXTOVERLAY_H */
|
||||||
306
ext/cairo/gsttimeoverlay.c
Normal file
306
ext/cairo/gsttimeoverlay.c
Normal file
|
|
@ -0,0 +1,306 @@
|
||||||
|
/* GStreamer
|
||||||
|
* Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
|
||||||
|
* Copyright (C) <2003> David Schleef <ds@schleef.org>
|
||||||
|
*
|
||||||
|
* 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.
|
||||||
|
*/
|
||||||
|
|
||||||
|
/*
|
||||||
|
* This file was (probably) generated from gsttimeoverlay.c,
|
||||||
|
* gsttimeoverlay.c,v 1.7 2003/11/08 02:48:59 dschleef Exp
|
||||||
|
*/
|
||||||
|
|
||||||
|
#ifdef HAVE_CONFIG_H
|
||||||
|
#include "config.h"
|
||||||
|
#endif
|
||||||
|
|
||||||
|
/*#define DEBUG_ENABLED */
|
||||||
|
#include <gsttimeoverlay.h>
|
||||||
|
#include <string.h>
|
||||||
|
#include <math.h>
|
||||||
|
|
||||||
|
#include <cairo.h>
|
||||||
|
|
||||||
|
|
||||||
|
/* GstTimeoverlay signals and args */
|
||||||
|
enum
|
||||||
|
{
|
||||||
|
/* FILL ME */
|
||||||
|
LAST_SIGNAL
|
||||||
|
};
|
||||||
|
|
||||||
|
enum
|
||||||
|
{
|
||||||
|
ARG_0
|
||||||
|
/* FILL ME */
|
||||||
|
};
|
||||||
|
|
||||||
|
static void gst_timeoverlay_base_init (gpointer g_class);
|
||||||
|
static void gst_timeoverlay_class_init (gpointer g_class, gpointer class_data);
|
||||||
|
static void gst_timeoverlay_init (GTypeInstance * instance, gpointer g_class);
|
||||||
|
|
||||||
|
static void gst_timeoverlay_set_property (GObject * object, guint prop_id,
|
||||||
|
const GValue * value, GParamSpec * pspec);
|
||||||
|
static void gst_timeoverlay_get_property (GObject * object, guint prop_id,
|
||||||
|
GValue * value, GParamSpec * pspec);
|
||||||
|
|
||||||
|
static void gst_timeoverlay_planar411 (GstVideofilter * videofilter, void *dest,
|
||||||
|
void *src);
|
||||||
|
static void gst_timeoverlay_setup (GstVideofilter * videofilter);
|
||||||
|
|
||||||
|
GType
|
||||||
|
gst_timeoverlay_get_type (void)
|
||||||
|
{
|
||||||
|
static GType timeoverlay_type = 0;
|
||||||
|
|
||||||
|
if (!timeoverlay_type) {
|
||||||
|
static const GTypeInfo timeoverlay_info = {
|
||||||
|
sizeof (GstTimeoverlayClass),
|
||||||
|
gst_timeoverlay_base_init,
|
||||||
|
NULL,
|
||||||
|
gst_timeoverlay_class_init,
|
||||||
|
NULL,
|
||||||
|
NULL,
|
||||||
|
sizeof (GstTimeoverlay),
|
||||||
|
0,
|
||||||
|
gst_timeoverlay_init,
|
||||||
|
};
|
||||||
|
|
||||||
|
timeoverlay_type = g_type_register_static (GST_TYPE_VIDEOFILTER,
|
||||||
|
"GstTimeoverlay", &timeoverlay_info, 0);
|
||||||
|
}
|
||||||
|
return timeoverlay_type;
|
||||||
|
}
|
||||||
|
|
||||||
|
static GstVideofilterFormat gst_timeoverlay_formats[] = {
|
||||||
|
{"I420", 12, gst_timeoverlay_planar411,},
|
||||||
|
};
|
||||||
|
|
||||||
|
|
||||||
|
static void
|
||||||
|
gst_timeoverlay_base_init (gpointer g_class)
|
||||||
|
{
|
||||||
|
static GstElementDetails timeoverlay_details =
|
||||||
|
GST_ELEMENT_DETAILS ("Time Overlay",
|
||||||
|
"Filter/Editor/Video",
|
||||||
|
"Overlays the time on a video stream",
|
||||||
|
"David Schleef <ds@schleef.org>");
|
||||||
|
GstElementClass *element_class = GST_ELEMENT_CLASS (g_class);
|
||||||
|
GstVideofilterClass *videofilter_class = GST_VIDEOFILTER_CLASS (g_class);
|
||||||
|
int i;
|
||||||
|
|
||||||
|
gst_element_class_set_details (element_class, &timeoverlay_details);
|
||||||
|
|
||||||
|
for (i = 0; i < G_N_ELEMENTS (gst_timeoverlay_formats); i++) {
|
||||||
|
gst_videofilter_class_add_format (videofilter_class,
|
||||||
|
gst_timeoverlay_formats + i);
|
||||||
|
}
|
||||||
|
|
||||||
|
gst_videofilter_class_add_pad_templates (GST_VIDEOFILTER_CLASS (g_class));
|
||||||
|
}
|
||||||
|
|
||||||
|
static void
|
||||||
|
gst_timeoverlay_class_init (gpointer g_class, gpointer class_data)
|
||||||
|
{
|
||||||
|
GObjectClass *gobject_class;
|
||||||
|
GstVideofilterClass *videofilter_class;
|
||||||
|
|
||||||
|
gobject_class = G_OBJECT_CLASS (g_class);
|
||||||
|
videofilter_class = GST_VIDEOFILTER_CLASS (g_class);
|
||||||
|
|
||||||
|
#if 0
|
||||||
|
g_object_class_install_property (gobject_class, ARG_METHOD,
|
||||||
|
g_param_spec_enum ("method", "method", "method",
|
||||||
|
GST_TYPE_TIMEOVERLAY_METHOD, GST_TIMEOVERLAY_METHOD_1,
|
||||||
|
G_PARAM_READWRITE));
|
||||||
|
#endif
|
||||||
|
|
||||||
|
gobject_class->set_property = gst_timeoverlay_set_property;
|
||||||
|
gobject_class->get_property = gst_timeoverlay_get_property;
|
||||||
|
|
||||||
|
videofilter_class->setup = gst_timeoverlay_setup;
|
||||||
|
}
|
||||||
|
|
||||||
|
static void
|
||||||
|
gst_timeoverlay_init (GTypeInstance * instance, gpointer g_class)
|
||||||
|
{
|
||||||
|
GstTimeoverlay *timeoverlay = GST_TIMEOVERLAY (instance);
|
||||||
|
GstVideofilter *videofilter;
|
||||||
|
|
||||||
|
GST_DEBUG ("gst_timeoverlay_init");
|
||||||
|
|
||||||
|
videofilter = GST_VIDEOFILTER (timeoverlay);
|
||||||
|
|
||||||
|
/* do stuff */
|
||||||
|
}
|
||||||
|
|
||||||
|
static void
|
||||||
|
gst_timeoverlay_set_property (GObject * object, guint prop_id,
|
||||||
|
const GValue * value, GParamSpec * pspec)
|
||||||
|
{
|
||||||
|
GstTimeoverlay *src;
|
||||||
|
|
||||||
|
/* it's not null if we got it, but it might not be ours */
|
||||||
|
g_return_if_fail (GST_IS_TIMEOVERLAY (object));
|
||||||
|
src = GST_TIMEOVERLAY (object);
|
||||||
|
|
||||||
|
GST_DEBUG ("gst_timeoverlay_set_property");
|
||||||
|
switch (prop_id) {
|
||||||
|
#if 0
|
||||||
|
case ARG_METHOD:
|
||||||
|
src->method = g_value_get_enum (value);
|
||||||
|
break;
|
||||||
|
#endif
|
||||||
|
default:
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
static void
|
||||||
|
gst_timeoverlay_get_property (GObject * object, guint prop_id, GValue * value,
|
||||||
|
GParamSpec * pspec)
|
||||||
|
{
|
||||||
|
GstTimeoverlay *src;
|
||||||
|
|
||||||
|
/* it's not null if we got it, but it might not be ours */
|
||||||
|
g_return_if_fail (GST_IS_TIMEOVERLAY (object));
|
||||||
|
src = GST_TIMEOVERLAY (object);
|
||||||
|
|
||||||
|
switch (prop_id) {
|
||||||
|
#if 0
|
||||||
|
case ARG_METHOD:
|
||||||
|
g_value_set_enum (value, src->method);
|
||||||
|
break;
|
||||||
|
#endif
|
||||||
|
default:
|
||||||
|
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
static void
|
||||||
|
gst_timeoverlay_setup (GstVideofilter * videofilter)
|
||||||
|
{
|
||||||
|
GstTimeoverlay *timeoverlay;
|
||||||
|
cairo_font_extents_t font_extents;
|
||||||
|
|
||||||
|
g_return_if_fail (GST_IS_TIMEOVERLAY (videofilter));
|
||||||
|
timeoverlay = GST_TIMEOVERLAY (videofilter);
|
||||||
|
|
||||||
|
/* if any setup needs to be done, do it here */
|
||||||
|
|
||||||
|
timeoverlay->cr = cairo_create ();
|
||||||
|
|
||||||
|
cairo_set_rgb_color (timeoverlay->cr, 0, 0, 0);
|
||||||
|
|
||||||
|
cairo_select_font (timeoverlay->cr, "monospace", 0, 0);
|
||||||
|
cairo_scale_font (timeoverlay->cr, 20);
|
||||||
|
|
||||||
|
cairo_current_font_extents (timeoverlay->cr, &font_extents);
|
||||||
|
timeoverlay->text_height = font_extents.height;
|
||||||
|
|
||||||
|
}
|
||||||
|
|
||||||
|
static char *
|
||||||
|
gst_timeoverlay_print_smpte_time (guint64 time)
|
||||||
|
{
|
||||||
|
int hours;
|
||||||
|
int minutes;
|
||||||
|
int seconds;
|
||||||
|
int ms;
|
||||||
|
double x;
|
||||||
|
|
||||||
|
x = rint ((time + 500000) * 1e-6);
|
||||||
|
|
||||||
|
hours = floor (x / (60 * 60 * 1000));
|
||||||
|
x -= hours * 60 * 60 * 1000;
|
||||||
|
minutes = floor (x / (60 * 1000));
|
||||||
|
x -= minutes * 60 * 1000;
|
||||||
|
seconds = floor (x / (1000));
|
||||||
|
x -= seconds * 1000;
|
||||||
|
ms = rint (x);
|
||||||
|
|
||||||
|
return g_strdup_printf ("%02d:%02d:%02d.%03d", hours, minutes, seconds, ms);
|
||||||
|
}
|
||||||
|
|
||||||
|
static void
|
||||||
|
gst_timeoverlay_planar411 (GstVideofilter * videofilter, void *dest, void *src)
|
||||||
|
{
|
||||||
|
GstTimeoverlay *timeoverlay;
|
||||||
|
int width;
|
||||||
|
int height;
|
||||||
|
int b_width;
|
||||||
|
char *string;
|
||||||
|
int i, j;
|
||||||
|
uint8_t *image;
|
||||||
|
cairo_text_extents_t extents;
|
||||||
|
|
||||||
|
g_return_if_fail (GST_IS_TIMEOVERLAY (videofilter));
|
||||||
|
timeoverlay = GST_TIMEOVERLAY (videofilter);
|
||||||
|
|
||||||
|
width = gst_videofilter_get_input_width (videofilter);
|
||||||
|
height = gst_videofilter_get_input_height (videofilter);
|
||||||
|
|
||||||
|
string =
|
||||||
|
gst_timeoverlay_print_smpte_time (GST_BUFFER_TIMESTAMP (videofilter->
|
||||||
|
in_buf));
|
||||||
|
|
||||||
|
image = g_malloc (4 * width * timeoverlay->text_height);
|
||||||
|
|
||||||
|
cairo_set_target_image (timeoverlay->cr, image, CAIRO_FORMAT_ARGB32,
|
||||||
|
width, timeoverlay->text_height, width * 4);
|
||||||
|
|
||||||
|
cairo_save (timeoverlay->cr);
|
||||||
|
cairo_rectangle (timeoverlay->cr, 0, 0, width, timeoverlay->text_height);
|
||||||
|
cairo_set_alpha (timeoverlay->cr, 0);
|
||||||
|
cairo_set_operator (timeoverlay->cr, CAIRO_OPERATOR_SRC);
|
||||||
|
cairo_fill (timeoverlay->cr);
|
||||||
|
cairo_restore (timeoverlay->cr);
|
||||||
|
|
||||||
|
cairo_save (timeoverlay->cr);
|
||||||
|
cairo_text_extents (timeoverlay->cr, string, &extents);
|
||||||
|
|
||||||
|
cairo_set_rgb_color (timeoverlay->cr, 1, 1, 1);
|
||||||
|
cairo_move_to (timeoverlay->cr, 0, timeoverlay->text_height - 2);
|
||||||
|
cairo_show_text (timeoverlay->cr, string);
|
||||||
|
g_free (string);
|
||||||
|
#if 0
|
||||||
|
cairo_text_path (timeoverlay->cr, string);
|
||||||
|
cairo_set_rgb_color (timeoverlay->cr, 1, 1, 1);
|
||||||
|
cairo_set_line_width (timeoverlay->cr, 1.0);
|
||||||
|
cairo_stroke (timeoverlay->cr);
|
||||||
|
#endif
|
||||||
|
|
||||||
|
cairo_restore (timeoverlay->cr);
|
||||||
|
|
||||||
|
b_width = extents.width;
|
||||||
|
if (b_width > width)
|
||||||
|
b_width = width;
|
||||||
|
|
||||||
|
memcpy (dest, src, videofilter->from_buf_size);
|
||||||
|
for (i = 0; i < timeoverlay->text_height; i++) {
|
||||||
|
for (j = 0; j < b_width; j++) {
|
||||||
|
((uint8_t *) dest)[i * width + j] = image[(i * width + j) * 4 + 0];
|
||||||
|
}
|
||||||
|
}
|
||||||
|
for (i = 0; i < timeoverlay->text_height / 2; i++) {
|
||||||
|
memset (dest + width * height + i * (width / 2), 128, b_width / 2);
|
||||||
|
memset (dest + width * height + (width / 2) * (height / 2) +
|
||||||
|
i * (width / 2), 128, b_width / 2);
|
||||||
|
}
|
||||||
|
|
||||||
|
g_free (image);
|
||||||
|
}
|
||||||
64
ext/cairo/gsttimeoverlay.h
Normal file
64
ext/cairo/gsttimeoverlay.h
Normal file
|
|
@ -0,0 +1,64 @@
|
||||||
|
/* 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_TIMEOVERLAY_H__
|
||||||
|
#define __GST_TIMEOVERLAY_H__
|
||||||
|
|
||||||
|
|
||||||
|
#include <gst/gst.h>
|
||||||
|
#include <cairo.h>
|
||||||
|
|
||||||
|
#include "gstvideofilter.h"
|
||||||
|
|
||||||
|
|
||||||
|
G_BEGIN_DECLS
|
||||||
|
|
||||||
|
#define GST_TYPE_TIMEOVERLAY \
|
||||||
|
(gst_timeoverlay_get_type())
|
||||||
|
#define GST_TIMEOVERLAY(obj) \
|
||||||
|
(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_TIMEOVERLAY,GstTimeoverlay))
|
||||||
|
#define GST_TIMEOVERLAY_CLASS(klass) \
|
||||||
|
(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_TIMEOVERLAY,GstTimeoverlayClass))
|
||||||
|
#define GST_IS_TIMEOVERLAY(obj) \
|
||||||
|
(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_TIMEOVERLAY))
|
||||||
|
#define GST_IS_TIMEOVERLAY_CLASS(obj) \
|
||||||
|
(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_TIMEOVERLAY))
|
||||||
|
|
||||||
|
typedef struct _GstTimeoverlay GstTimeoverlay;
|
||||||
|
typedef struct _GstTimeoverlayClass GstTimeoverlayClass;
|
||||||
|
|
||||||
|
struct _GstTimeoverlay {
|
||||||
|
GstVideofilter videofilter;
|
||||||
|
|
||||||
|
cairo_t *cr;
|
||||||
|
int text_height;
|
||||||
|
|
||||||
|
};
|
||||||
|
|
||||||
|
struct _GstTimeoverlayClass {
|
||||||
|
GstVideofilterClass parent_class;
|
||||||
|
};
|
||||||
|
|
||||||
|
GType gst_timeoverlay_get_type(void);
|
||||||
|
|
||||||
|
G_END_DECLS
|
||||||
|
|
||||||
|
#endif /* __GST_TIMEOVERLAY_H__ */
|
||||||
|
|
||||||
Loading…
Reference in a new issue