Hi,
OpenCV video stuff wasn't working, this was because it wasn't compiling
against ffmpeg anymore. I don't know for sure where to report this, but
I think this is the right place.
I made a patch to fix this, see attachment. I'm not a very good C hacker
so there may be some problems, but for me it is working (and I had more
positive reports).
The patch is based upon the gentoo fix:
* http://bugs.gentoo.org/attachment.cgi?id=130219&action=edit
The complete packages can also be downloaded from the launchpad PPA that
I created for this:
* https://launchpad.net/~gijzelaar/+archive/opencv
I hope this is useful.
- gijs
diff -uNr opencv-1.0.0/configure opencv-1.0.0-fixed/configure
--- opencv-1.0.0/configure 2009-05-03 17:11:43.192450271 +0200
+++ opencv-1.0.0-fixed/configure 2009-05-03 17:15:02.471951090 +0200
@@ -22467,8 +22467,8 @@
fi
if test x"$with_ffmpeg" = "xyes"; then
if test "${ac_cv_header_ffmpeg_avcodec_h+set}" = set; then
- { echo "$as_me:$LINENO: checking for ffmpeg/avcodec.h" >&5
-echo $ECHO_N "checking for ffmpeg/avcodec.h... $ECHO_C" >&6; }
+ { echo "$as_me:$LINENO: checking for libavcodec/avcodec.h" >&5
+echo $ECHO_N "checking for libavcodec/avcodec.h... $ECHO_C" >&6; }
if test "${ac_cv_header_ffmpeg_avcodec_h+set}" = set; then
echo $ECHO_N "(cached) $ECHO_C" >&6
fi
@@ -22476,8 +22476,8 @@
echo "${ECHO_T}$ac_cv_header_ffmpeg_avcodec_h" >&6; }
else
# Is the header compilable?
-{ echo "$as_me:$LINENO: checking ffmpeg/avcodec.h usability" >&5
-echo $ECHO_N "checking ffmpeg/avcodec.h usability... $ECHO_C" >&6; }
+{ echo "$as_me:$LINENO: checking libavcodec/avcodec.h usability" >&5
+echo $ECHO_N "checking libavcodec/avcodec.h usability... $ECHO_C" >&6; }
cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h. */
_ACEOF
@@ -22485,7 +22485,7 @@
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h. */
$ac_includes_default
-#include <ffmpeg/avcodec.h>
+#include <libavcodec/avcodec.h>
_ACEOF
rm -f conftest.$ac_objext
if { (ac_try="$ac_compile"
@@ -22517,15 +22517,15 @@
echo "${ECHO_T}$ac_header_compiler" >&6; }
# Is the header present?
-{ echo "$as_me:$LINENO: checking ffmpeg/avcodec.h presence" >&5
-echo $ECHO_N "checking ffmpeg/avcodec.h presence... $ECHO_C" >&6; }
+{ echo "$as_me:$LINENO: checking libavcodec/avcodec.h presence" >&5
+echo $ECHO_N "checking libavcodec/avcodec.h presence... $ECHO_C" >&6; }
cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h. */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h. */
-#include <ffmpeg/avcodec.h>
+#include <libavcodec/avcodec.h>
_ACEOF
if { (ac_try="$ac_cpp conftest.$ac_ext"
case "(($ac_try" in
@@ -22558,25 +22558,25 @@
# So? What about this header?
case $ac_header_compiler:$ac_header_preproc:$ac_c_preproc_warn_flag in
yes:no: )
- { echo "$as_me:$LINENO: WARNING: ffmpeg/avcodec.h: accepted by the compiler, rejected by the preprocessor!" >&5
-echo "$as_me: WARNING: ffmpeg/avcodec.h: accepted by the compiler, rejected by the preprocessor!" >&2;}
- { echo "$as_me:$LINENO: WARNING: ffmpeg/avcodec.h: proceeding with the compiler's result" >&5
-echo "$as_me: WARNING: ffmpeg/avcodec.h: proceeding with the compiler's result" >&2;}
+ { echo "$as_me:$LINENO: WARNING: libavcodec/avcodec.h: accepted by the compiler, rejected by the preprocessor!" >&5
+echo "$as_me: WARNING: libavcodec/avcodec.h: accepted by the compiler, rejected by the preprocessor!" >&2;}
+ { echo "$as_me:$LINENO: WARNING: libavcodec/avcodec.h: proceeding with the compiler's result" >&5
+echo "$as_me: WARNING: libavcodec/avcodec.h: proceeding with the compiler's result" >&2;}
ac_header_preproc=yes
;;
no:yes:* )
- { echo "$as_me:$LINENO: WARNING: ffmpeg/avcodec.h: present but cannot be compiled" >&5
-echo "$as_me: WARNING: ffmpeg/avcodec.h: present but cannot be compiled" >&2;}
- { echo "$as_me:$LINENO: WARNING: ffmpeg/avcodec.h: check for missing prerequisite headers?" >&5
-echo "$as_me: WARNING: ffmpeg/avcodec.h: check for missing prerequisite headers?" >&2;}
- { echo "$as_me:$LINENO: WARNING: ffmpeg/avcodec.h: see the Autoconf documentation" >&5
-echo "$as_me: WARNING: ffmpeg/avcodec.h: see the Autoconf documentation" >&2;}
- { echo "$as_me:$LINENO: WARNING: ffmpeg/avcodec.h: section \"Present But Cannot Be Compiled\"" >&5
-echo "$as_me: WARNING: ffmpeg/avcodec.h: section \"Present But Cannot Be Compiled\"" >&2;}
- { echo "$as_me:$LINENO: WARNING: ffmpeg/avcodec.h: proceeding with the preprocessor's result" >&5
-echo "$as_me: WARNING: ffmpeg/avcodec.h: proceeding with the preprocessor's result" >&2;}
- { echo "$as_me:$LINENO: WARNING: ffmpeg/avcodec.h: in the future, the compiler will take precedence" >&5
-echo "$as_me: WARNING: ffmpeg/avcodec.h: in the future, the compiler will take precedence" >&2;}
+ { echo "$as_me:$LINENO: WARNING: libavcodec/avcodec.h: present but cannot be compiled" >&5
+echo "$as_me: WARNING: libavcodec/avcodec.h: present but cannot be compiled" >&2;}
+ { echo "$as_me:$LINENO: WARNING: libavcodec/avcodec.h: check for missing prerequisite headers?" >&5
+echo "$as_me: WARNING: libavcodec/avcodec.h: check for missing prerequisite headers?" >&2;}
+ { echo "$as_me:$LINENO: WARNING: libavcodec/avcodec.h: see the Autoconf documentation" >&5
+echo "$as_me: WARNING: libavcodec/avcodec.h: see the Autoconf documentation" >&2;}
+ { echo "$as_me:$LINENO: WARNING: libavcodec/avcodec.h: section \"Present But Cannot Be Compiled\"" >&5
+echo "$as_me: WARNING: libavcodec/avcodec.h: section \"Present But Cannot Be Compiled\"" >&2;}
+ { echo "$as_me:$LINENO: WARNING: libavcodec/avcodec.h: proceeding with the preprocessor's result" >&5
+echo "$as_me: WARNING: libavcodec/avcodec.h: proceeding with the preprocessor's result" >&2;}
+ { echo "$as_me:$LINENO: WARNING: libavcodec/avcodec.h: in the future, the compiler will take precedence" >&5
+echo "$as_me: WARNING: libavcodec/avcodec.h: in the future, the compiler will take precedence" >&2;}
( cat <<\_ASBOX
## -------------------------------------------------------- ##
## Report this to opencvlibrary-de...@lists.sourceforge.net ##
@@ -22585,8 +22585,8 @@
) | sed "s/^/$as_me: WARNING: /" >&2
;;
esac
-{ echo "$as_me:$LINENO: checking for ffmpeg/avcodec.h" >&5
-echo $ECHO_N "checking for ffmpeg/avcodec.h... $ECHO_C" >&6; }
+{ echo "$as_me:$LINENO: checking for libavcodec/avcodec.h" >&5
+echo $ECHO_N "checking for libavcodec/avcodec.h... $ECHO_C" >&6; }
if test "${ac_cv_header_ffmpeg_avcodec_h+set}" = set; then
echo $ECHO_N "(cached) $ECHO_C" >&6
else
diff -uNr opencv-1.0.0/configure.in opencv-1.0.0-fixed/configure.in
--- opencv-1.0.0/configure.in 2009-05-03 17:11:43.107950357 +0200
+++ opencv-1.0.0-fixed/configure.in 2009-05-03 17:15:02.471951090 +0200
@@ -441,7 +441,7 @@
with_ffmpeg=yes
fi
if test x"$with_ffmpeg" = "xyes"; then
- AC_CHECK_HEADER(ffmpeg/avcodec.h,
+ AC_CHECK_HEADER(libavcodec/avcodec.h,
[
have_ffmpeg=yes
AC_DEFINE(HAVE_FFMPEG,,[FFMpeg video library])
diff -uNr opencv-1.0.0/otherlibs/highgui/cvcap_ffmpeg.cpp opencv-1.0.0-fixed/otherlibs/highgui/cvcap_ffmpeg.cpp
--- opencv-1.0.0/otherlibs/highgui/cvcap_ffmpeg.cpp 2009-05-03 17:11:43.264451368 +0200
+++ opencv-1.0.0-fixed/otherlibs/highgui/cvcap_ffmpeg.cpp 2009-05-03 17:15:24.011950348 +0200
@@ -41,9 +41,14 @@
#include "_highgui.h"
+#define __STDC_CONSTANT_MACROS
extern "C" {
-#include <ffmpeg/avformat.h>
+#include <libavformat/avformat.h>
+#include <libavcodec/avcodec.h>
+#include <libswscale/swscale.h>
+#include <sys/types.h> /* size_t */
+#include <sys/errno.h>
}
#ifdef NDEBUG
@@ -52,6 +57,8 @@
#define CV_WARN(message) fprintf(stderr, "warning: %s (%s:%d)\n", message, __FILE__, __LINE__)
#endif
+static struct SwsContext *img_convert_ctx;
+
typedef struct CvCaptureAVI_FFMPEG
{
CvCaptureVTable * vtable;
@@ -214,19 +221,21 @@
{
if( !capture || !capture->video_st || !capture->picture->data[0] )
return 0;
-#if LIBAVFORMAT_BUILD > 4628
- img_convert( (AVPicture*)&capture->rgb_picture, PIX_FMT_BGR24,
- (AVPicture*)capture->picture,
- capture->video_st->codec->pix_fmt,
- capture->video_st->codec->width,
- capture->video_st->codec->height );
-#else
- img_convert( (AVPicture*)&capture->rgb_picture, PIX_FMT_BGR24,
- (AVPicture*)capture->picture,
- capture->video_st->codec.pix_fmt,
- capture->video_st->codec.width,
- capture->video_st->codec.height );
-#endif
+
+ img_convert_ctx = sws_getContext(capture->video_st->codec->width,
+ capture->video_st->codec->height,
+ capture->video_st->codec->pix_fmt,
+ capture->video_st->codec->width,
+ capture->video_st->codec->height,
+ PIX_FMT_BGR24,
+ SWS_BICUBIC,
+ NULL, NULL, NULL);
+
+ sws_scale(img_convert_ctx, capture->picture->data,
+ capture->picture->linesize, 0,
+ capture->video_st->codec->height,
+ capture->rgb_picture.data, capture->rgb_picture.linesize);
+
return &capture->frame;
}
@@ -713,9 +722,20 @@
PIX_FMT_BGR24, image->width, image->height);
// convert to the color format needed by the codec
- if( img_convert((AVPicture *)mywriter->picture, c->pix_fmt,
- (AVPicture *)mywriter->rgb_picture, PIX_FMT_BGR24,
- image->width, image->height) < 0){
+ img_convert_ctx = sws_getContext(image->width,
+ image->height,
+ PIX_FMT_BGR24,
+ c->width,
+ c->height,
+ c->pix_fmt,
+ SWS_BICUBIC,
+ NULL, NULL, NULL);
+
+ if ( sws_scale(img_convert_ctx, mywriter->rgb_picture->data,
+ mywriter->rgb_picture->linesize, 0,
+ image->height,
+ mywriter->picture->data, mywriter->picture->linesize) < 0 )
+ {
CV_ERROR(CV_StsUnsupportedFormat, "FFMPEG::img_convert pixel format conversion from BGR24 not handled");
}
}
diff -uNr opencv-1.0.0/configure.in opencv-1.0.0-fixed/configure.in
--- opencv-1.0.0/configure.in 2009-05-03 20:10:05.383950421 +0200
+++ opencv-1.0.0-fixed/configure.in 2009-05-03 20:11:09.832018063 +0200
@@ -446,6 +446,7 @@
have_ffmpeg=yes
AC_DEFINE(HAVE_FFMPEG,,[FFMpeg video library])
FFMPEGLIBS="`pkg-config --libs libavcodec libavformat libavutil libswscale`"
+ LIBS="$LIBS $FFMPEGLIBS"
],
[ have_ffmpeg=no ])
else
diff -uNr opencv-1.0.0/configure opencv-1.0.0-fixed/configure
--- opencv-1.0.0/configure 2009-05-03 20:16:55.992951051 +0200
+++ opencv-1.0.0-fixed/configure 2009-05-03 20:24:43.551950430 +0200
@@ -22604,7 +22604,8 @@
#define HAVE_FFMPEG
_ACEOF
- FFMPEGLIBS="`pkg-config --libs libavcodec libavformat`"
+ FFMPEGLIBS="`pkg-config --libs libavcodec libavformat libavutil libswscale`"
+ LIBS="$LIBS $FFMPEGLIBS"
else
have_ffmpeg=no
--
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