January 2011 - FFmpeg-soc - lists.ffmpeg.org

libavfilter to filter subsequent frames
by Thilo Borgmann 11 Feb '11

11 Feb '11

Hi, I'm still trying to gain some insight into libavfilter... I want to implement a filter that needs to process subsequent frames of the input video. Does anything from the soc or whatever git repo can already provide subsequent frames - does this fit in libavfilter already? Maybe "buffer" or "fifo" could already handle this? Regards, Thilo

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Google Summer of Code 2011 is announced
by Benjamin Larsson 26 Jan '11

26 Jan '11

http://code.google.com/soc/ http://www.google-melange.com/ MvH Benjamin Larsson

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[soc]: r5946 - libavfilter/checkout.sh
by stefano 24 Jan '11

24 Jan '11

Author: stefano Date: Mon Jan 24 22:59:18 2011 New Revision: 5946 Log: Fix checkout.sh after the recent switch to git. Patch by Reinhard. Modified: libavfilter/checkout.sh Modified: libavfilter/checkout.sh ============================================================================== --- libavfilter/checkout.sh Mon Jan 17 13:10:17 2011 (r5945) +++ libavfilter/checkout.sh Mon Jan 24 22:59:18 2011 (r5946) @@ -1,12 +1,10 @@ #! /bin/sh echo "checking out pristine ffmpeg" -svn checkout svn://svn.ffmpeg.org/ffmpeg/trunk/ ffmpeg -r26400 +svn checkout svn://svn.ffmpeg.org/ffmpeg/trunk@26400 ffmpeg echo "downloading the corresponding version of swscale" -cd ffmpeg/libswscale -svn up -r32676 -cd ../.. +svn checkout svn://svn.ffmpeg.org/mplayer/trunk/libswscale@32676 ffmpeg/libswscale echo "patching ffmpeg" for diff in $(ls $(pwd)/diffs/*.diff); do patch -d ffmpeg -p0 -i $diff; done

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libavfilter FT new FFmpeg maintainership
by Maksym Veremeyenko 22 Jan '11

22 Jan '11

Hi, are there any play to continue *libavfilter* development? May be it's a time to merge libavfilter-soc to main *ffmpeg* tree? -- ________________________________________ Maksym Veremeyenko

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[soc]: r5945 - in libavfilter: checkout.sh diffs/00_configure.diff diffs/01_build.diff diffs/03_doc_filters.diff
by stefano 17 Jan '11

17 Jan '11

Author: stefano Date: Mon Jan 17 13:10:17 2011 New Revision: 5945 Log: Update to FFmpeg SVN r26400 / libswscale r32676. Modified: libavfilter/checkout.sh libavfilter/diffs/00_configure.diff libavfilter/diffs/01_build.diff libavfilter/diffs/03_doc_filters.diff Modified: libavfilter/checkout.sh ============================================================================== --- libavfilter/checkout.sh Sun Dec 12 19:35:50 2010 (r5944) +++ libavfilter/checkout.sh Mon Jan 17 13:10:17 2011 (r5945) @@ -1,7 +1,7 @@ #! /bin/sh echo "checking out pristine ffmpeg" -svn checkout svn://svn.ffmpeg.org/ffmpeg/trunk/ ffmpeg -r25942 +svn checkout svn://svn.ffmpeg.org/ffmpeg/trunk/ ffmpeg -r26400 echo "downloading the corresponding version of swscale" cd ffmpeg/libswscale Modified: libavfilter/diffs/00_configure.diff ============================================================================== --- libavfilter/diffs/00_configure.diff Sun Dec 12 19:35:50 2010 (r5944) +++ libavfilter/diffs/00_configure.diff Mon Jan 17 13:10:17 2011 (r5945) @@ -1,6 +1,6 @@ Index: configure =================================================================== ---- configure (revision 25942) +--- configure (revision 26400) +++ configure (working copy) @@ -170,6 +170,7 @@ and libraw1394 [no] @@ -10,7 +10,7 @@ Index: configure --enable-libgsm enable GSM support via libgsm [no] --enable-libmp3lame enable MP3 encoding via libmp3lame [no] --enable-libnut enable NUT (de)muxing via libnut, -@@ -885,6 +886,7 @@ +@@ -886,6 +887,7 @@ libdc1394 libdirac libfaac @@ -18,7 +18,7 @@ Index: configure libgsm libmp3lame libnut -@@ -1030,6 +1032,7 @@ +@@ -1031,6 +1033,7 @@ llrintf local_aligned_16 local_aligned_8 @@ -26,7 +26,7 @@ Index: configure log2 log2f loongson -@@ -1406,9 +1409,11 @@ +@@ -1412,11 +1415,13 @@ # filters blackframe_filter_deps="gpl" cropdetect_filter_deps="gpl" @@ -35,18 +35,21 @@ Index: configure frei0r_src_filter_deps="frei0r dlopen strtok_r" hqdn3d_filter_deps="gpl" +movie_filter_deps="avformat" - ocv_smooth_filter_deps="libopencv" ++ocv_filter_deps="libopencv" + scale_filter_deps="swscale" +-ocv_filter_deps="libopencv" yadif_filter_deps="gpl" -@@ -2669,6 +2674,7 @@ + # libraries +@@ -2677,6 +2682,7 @@ check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss check_func inet_aton $network_extralibs check_func isatty +check_func localtime_r check_func ${malloc_prefix}memalign && enable memalign check_func mkstemp - check_func ${malloc_prefix}posix_memalign && enable posix_memalign -@@ -2753,6 +2759,7 @@ + check_func mmap +@@ -2763,6 +2769,7 @@ require libdirac libdirac_decoder/dirac_parser.h dirac_decoder_init $(pkg-config --libs dirac) && require libdirac libdirac_encoder/dirac_encoder.h dirac_encoder_init $(pkg-config --libs dirac) enabled libfaac && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac Modified: libavfilter/diffs/01_build.diff ============================================================================== --- libavfilter/diffs/01_build.diff Sun Dec 12 19:35:50 2010 (r5944) +++ libavfilter/diffs/01_build.diff Mon Jan 17 13:10:17 2011 (r5945) @@ -1,6 +1,6 @@ Index: libavfilter/Makefile =================================================================== ---- libavfilter/Makefile (revision 25942) +--- libavfilter/Makefile (revision 26400) +++ libavfilter/Makefile (working copy) @@ -3,6 +3,7 @@ NAME = avfilter @@ -10,7 +10,7 @@ Index: libavfilter/Makefile HEADERS = avfilter.h avfiltergraph.h -@@ -23,24 +24,30 @@ +@@ -24,24 +25,30 @@ OBJS-$(CONFIG_CROP_FILTER) += vf_crop.o OBJS-$(CONFIG_CROPDETECT_FILTER) += vf_cropdetect.o OBJS-$(CONFIG_DRAWBOX_FILTER) += vf_drawbox.o @@ -26,7 +26,7 @@ Index: libavfilter/Makefile +OBJS-$(CONFIG_NEGATE_FILTER) += vf_negate.o OBJS-$(CONFIG_NOFORMAT_FILTER) += vf_format.o OBJS-$(CONFIG_NULL_FILTER) += vf_null.o - OBJS-$(CONFIG_OCV_SMOOTH_FILTER) += vf_libopencv.o + OBJS-$(CONFIG_OCV_FILTER) += vf_libopencv.o OBJS-$(CONFIG_OVERLAY_FILTER) += vf_overlay.o OBJS-$(CONFIG_PAD_FILTER) += vf_pad.o OBJS-$(CONFIG_PIXDESCTEST_FILTER) += vf_pixdesctest.o @@ -41,7 +41,7 @@ Index: libavfilter/Makefile OBJS-$(CONFIG_TRANSPOSE_FILTER) += vf_transpose.o OBJS-$(CONFIG_UNSHARP_FILTER) += vf_unsharp.o OBJS-$(CONFIG_VFLIP_FILTER) += vf_vflip.o -@@ -49,6 +56,7 @@ +@@ -50,6 +57,7 @@ OBJS-$(CONFIG_BUFFER_FILTER) += vsrc_buffer.o OBJS-$(CONFIG_COLOR_FILTER) += vf_pad.o OBJS-$(CONFIG_FREI0R_SRC_FILTER) += vf_frei0r.o @@ -51,9 +51,9 @@ Index: libavfilter/Makefile OBJS-$(CONFIG_NULLSINK_FILTER) += vsink_nullsink.o Index: libavfilter/allfilters.c =================================================================== ---- libavfilter/allfilters.c (revision 25942) +--- libavfilter/allfilters.c (revision 26400) +++ libavfilter/allfilters.c (working copy) -@@ -44,24 +44,30 @@ +@@ -45,24 +45,30 @@ REGISTER_FILTER (CROP, crop, vf); REGISTER_FILTER (CROPDETECT, cropdetect, vf); REGISTER_FILTER (DRAWBOX, drawbox, vf); @@ -69,7 +69,7 @@ Index: libavfilter/allfilters.c + REGISTER_FILTER (NEGATE, negate, vf); REGISTER_FILTER (NOFORMAT, noformat, vf); REGISTER_FILTER (NULL, null, vf); - REGISTER_FILTER (OCV_SMOOTH, ocv_smooth, vf); + REGISTER_FILTER (OCV, ocv, vf); REGISTER_FILTER (OVERLAY, overlay, vf); REGISTER_FILTER (PAD, pad, vf); REGISTER_FILTER (PIXDESCTEST, pixdesctest, vf); @@ -84,7 +84,7 @@ Index: libavfilter/allfilters.c REGISTER_FILTER (TRANSPOSE, transpose, vf); REGISTER_FILTER (UNSHARP, unsharp, vf); REGISTER_FILTER (VFLIP, vflip, vf); -@@ -70,6 +76,7 @@ +@@ -71,6 +77,7 @@ REGISTER_FILTER (BUFFER, buffer, vsrc); REGISTER_FILTER (COLOR, color, vsrc); REGISTER_FILTER (FREI0R, frei0r_src, vsrc); Modified: libavfilter/diffs/03_doc_filters.diff ============================================================================== --- libavfilter/diffs/03_doc_filters.diff Sun Dec 12 19:35:50 2010 (r5944) +++ libavfilter/diffs/03_doc_filters.diff Mon Jan 17 13:10:17 2011 (r5945) @@ -1,8 +1,8 @@ Index: doc/filters.texi =================================================================== ---- doc/filters.texi (revision 25942) +--- doc/filters.texi (revision 26400) +++ doc/filters.texi (working copy) -@@ -348,6 +348,99 @@ +@@ -353,6 +353,99 @@ drawbox=10:20:200:60:red@@0.5" @end example @@ -102,7 +102,7 @@ Index: doc/filters.texi @section fifo Buffer input images and send them when they are requested. -@@ -425,6 +518,14 @@ +@@ -431,6 +524,14 @@ For more information see: @url{http://piksel.org/frei0r} @@ -117,7 +117,7 @@ Index: doc/filters.texi @section gradfun Fix the banding artifacts that are sometimes introduced into nearly flat -@@ -491,6 +592,14 @@ +@@ -497,6 +598,14 @@ @var{luma_tmp}*@var{chroma_spatial}/@var{luma_spatial} @end table @@ -132,7 +132,7 @@ Index: doc/filters.texi @section noformat Force libavfilter not to use any of the specified pixel formats for the -@@ -653,6 +762,14 @@ +@@ -731,6 +840,14 @@ can be used to test the monowhite pixel format descriptor definition. @@ -147,7 +147,7 @@ Index: doc/filters.texi @section scale Scale the input video to @var{width}:@var{height} and/or convert the image format. -@@ -783,6 +900,11 @@ +@@ -861,6 +978,11 @@ Adding this in the beginning of filter chains should make filtering faster due to better use of the memory cache. @@ -159,7 +159,7 @@ Index: doc/filters.texi @section transpose Transpose rows with columns in the input video and optionally flip it. -@@ -1001,6 +1123,27 @@ +@@ -1088,6 +1210,27 @@ "color=red@@0.2:qcif:10 [color]; [in][color] overlay [out]" @end example

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[PATCH 0/4] ac3enc commits
by Justin Ruggles 03 Jan '11

03 Jan '11

stereo rematrixing tweaks also, enable rematrixing for the fixed-point encoder Justin Ruggles (4): Use local variables for mid/side in compute_rematrixing_strategy() 8% faster in function. Merge 2 loops in compute_rematrixing_strategy(). 4% faster in function. Use stereo rematrixing for the fixed-point encoder as well. cosmetics: move rematrixing_init() to group it with the other rematrixing functions. libavcodec/ac3enc.c | 135 +++++++++++++++++++++++++++++++++++++-------- libavcodec/ac3enc_fixed.c | 12 ---- libavcodec/ac3enc_fixed.h | 5 ++ libavcodec/ac3enc_float.c | 96 -------------------------------- libavcodec/ac3enc_float.h | 5 ++ 5 files changed, 121 insertions(+), 132 deletions(-)

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[PATCH] Add support for stereo rematrixing in the floating-point AC-3 encoder.
by Justin Ruggles 02 Jan '11

02 Jan '11

1 1