Commit Graph

45 Commits

Author SHA1 Message Date
Pedro Arthur 2a7128f4ed Add gamma encodign/decoding before/after scaling in libswscale
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2015-04-23 20:34:51 +02:00
Michael Niedermayer 61af6bebb4 swscale: Allow chroma samples to be above and to the left of luma samples
Found-by: Kierank
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2014-09-21 12:23:24 +02:00
Øyvind Kolås 3e6016622e swscale: add two spatially stable dithering methods
Both of these dithering methods are from http://pippin.gimp.org/a_dither/ for
GIF they can be considered better than bayer (provides more gray-levels), and
spatial stability - often more than twice as good compression and less visual
flicker than error diffusion methods (the methods also avoids error-shadow
artifacts of diffusion dithers).

These methods are similar to blue/green noise type dither masks; but are
simple enough to generate their mask on the fly. They are still research work
in progress; though more expensive to generate masks (which can be used in a
LUT) like 'void and cluster' and similar methods will yield superior results
2014-03-25 13:48:06 +01:00
Michael Niedermayer ccf96f8c64 swscale/options: switch default to bicubic
Suggested-by: Ronald S. Bultje
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-10-06 10:47:09 +02:00
wm4 01e3340fb6 swscale: make bilinear scaling the default
Before this commit, sws_init_context() failed with an error if no scaler
was explicitly set.

Defaulting to something reasonable is better behavior.

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-09-30 18:14:58 +02:00
Michael Niedermayer 1e0e193240 sws: add dither enum
This allows specifying more dither algorithms without using up flags and
without ambiguities.

Also initialize the new field based on the flags and use it.
Note, improving the logic of the checks is left to subsequent
commits, this here only switches from flags to enum.

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-08-15 21:39:32 +02:00
Michael Niedermayer a8e963835a Merge commit 'b5a138652ff8a5b987d3e1191e67fd9f6575527e'
* commit 'b5a138652ff8a5b987d3e1191e67fd9f6575527e':
  Give less generic names to global library option arrays

Conflicts:
	libavcodec/options_table.h
	libavfilter/avfilter.c
	libavformat/options_table.h
	libswscale/options.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2013-08-03 09:16:36 +02:00
Diego Biurrun b5a138652f Give less generic names to global library option arrays 2013-08-02 19:19:02 +02:00
Michael Niedermayer a0b7e73f8b swscale/options: fix copy and paste typo
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-07-17 16:59:29 +02:00
Michael Niedermayer b405f4e916 swscale: Add support to specify chroma position
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-07-17 01:59:10 +02:00
Michael Niedermayer d7a46ca179 sws: add AVOption flag for error diffusion dither
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-01-19 02:38:48 +01:00
Stefano Sabatini 605f1d9865 lsws: define version in SWScaler class
The version number is useful to check the libavutil version against which
the library was compiled at run-time, which in turn may be useful to deal
with binary compatibility issues.
2012-11-29 10:20:21 +01:00
Michael Niedermayer ac627b3d38 Merge commit '716d413c13981da15323c7a3821860536eefdbbb'
* commit '716d413c13981da15323c7a3821860536eefdbbb':
  Replace PIX_FMT_* -> AV_PIX_FMT_*, PixelFormat -> AVPixelFormat

Conflicts:
	doc/examples/muxing.c
	ffmpeg.h
	ffmpeg_filter.c
	ffmpeg_opt.c
	ffplay.c
	ffprobe.c
	libavcodec/8bps.c
	libavcodec/aasc.c
	libavcodec/aura.c
	libavcodec/avcodec.h
	libavcodec/avs.c
	libavcodec/bfi.c
	libavcodec/bmp.c
	libavcodec/bmpenc.c
	libavcodec/c93.c
	libavcodec/cscd.c
	libavcodec/cyuv.c
	libavcodec/dpx.c
	libavcodec/dpxenc.c
	libavcodec/eatgv.c
	libavcodec/escape124.c
	libavcodec/ffv1.c
	libavcodec/flashsv.c
	libavcodec/fraps.c
	libavcodec/h264.c
	libavcodec/huffyuv.c
	libavcodec/iff.c
	libavcodec/imgconvert.c
	libavcodec/indeo3.c
	libavcodec/kmvc.c
	libavcodec/libopenjpegdec.c
	libavcodec/libopenjpegenc.c
	libavcodec/libx264.c
	libavcodec/ljpegenc.c
	libavcodec/mjpegdec.c
	libavcodec/mjpegenc.c
	libavcodec/motionpixels.c
	libavcodec/mpeg12.c
	libavcodec/mpeg12enc.c
	libavcodec/mpeg4videodec.c
	libavcodec/mpegvideo_enc.c
	libavcodec/pamenc.c
	libavcodec/pcxenc.c
	libavcodec/pgssubdec.c
	libavcodec/pngdec.c
	libavcodec/pngenc.c
	libavcodec/pnm.c
	libavcodec/pnmdec.c
	libavcodec/pnmenc.c
	libavcodec/ptx.c
	libavcodec/qdrw.c
	libavcodec/qpeg.c
	libavcodec/qtrleenc.c
	libavcodec/raw.c
	libavcodec/rawdec.c
	libavcodec/rl2.c
	libavcodec/sgidec.c
	libavcodec/sgienc.c
	libavcodec/snowdec.c
	libavcodec/snowenc.c
	libavcodec/sunrast.c
	libavcodec/targa.c
	libavcodec/targaenc.c
	libavcodec/tiff.c
	libavcodec/tiffenc.c
	libavcodec/tmv.c
	libavcodec/truemotion2.c
	libavcodec/utils.c
	libavcodec/vb.c
	libavcodec/vp3.c
	libavcodec/wnv1.c
	libavcodec/xl.c
	libavcodec/xwddec.c
	libavcodec/xwdenc.c
	libavcodec/yop.c
	libavdevice/v4l2.c
	libavdevice/x11grab.c
	libavfilter/avfilter.c
	libavfilter/avfilter.h
	libavfilter/buffersrc.c
	libavfilter/drawutils.c
	libavfilter/formats.c
	libavfilter/src_movie.c
	libavfilter/vf_ass.c
	libavfilter/vf_drawtext.c
	libavfilter/vf_fade.c
	libavfilter/vf_format.c
	libavfilter/vf_hflip.c
	libavfilter/vf_lut.c
	libavfilter/vf_overlay.c
	libavfilter/vf_pad.c
	libavfilter/vf_scale.c
	libavfilter/vf_transpose.c
	libavfilter/vf_yadif.c
	libavfilter/video.c
	libavfilter/vsrc_testsrc.c
	libavformat/movenc.c
	libavformat/mxf.h
	libavformat/utils.c
	libavformat/yuv4mpeg.c
	libavutil/imgutils.c
	libavutil/pixdesc.c
	libswscale/input.c
	libswscale/output.c
	libswscale/swscale_internal.h
	libswscale/swscale_unscaled.c
	libswscale/utils.c
	libswscale/x86/swscale_template.c
	libswscale/x86/yuv2rgb.c
	libswscale/x86/yuv2rgb_template.c
	libswscale/yuv2rgb.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2012-10-08 21:06:57 +02:00
Anton Khirnov 716d413c13 Replace PIX_FMT_* -> AV_PIX_FMT_*, PixelFormat -> AVPixelFormat 2012-10-08 07:13:26 +02:00
Michael Niedermayer d46c1c72e4 Merge commit 'e6153f173a49e5bfa70b0c04d2f82930533597b9'
* commit 'e6153f173a49e5bfa70b0c04d2f82930533597b9':
  avopt: Store defaults for AV_OPT_TYPE_INT in the i64 union member

Conflicts:
	libavcodec/libopenjpegdec.c
	libavcodec/libopenjpegenc.c
	libavcodec/libx264.c
	libavcodec/mpeg12enc.c
	libavcodec/options_table.h
	libavcodec/snowenc.c
	libavcodec/tiffenc.c
	libavdevice/v4l2.c
	libavdevice/x11grab.c
	libavfilter/af_amix.c
	libavfilter/af_asyncts.c
	libavfilter/af_join.c
	libavfilter/buffersrc.c
	libavfilter/src_movie.c
	libavfilter/vf_delogo.c
	libavfilter/vf_drawtext.c
	libavformat/http.c
	libavformat/img2dec.c
	libavformat/img2enc.c
	libavformat/movenc.c
	libavformat/mpegenc.c
	libavformat/mpegtsenc.c
	libavformat/options_table.h
	libavformat/segment.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2012-09-05 14:33:32 +02:00
Michael Niedermayer 99de3df3d3 Merge commit 'd58dd4b5b5d31cfd4092e38a5f2c894eee2ab078'
* commit 'd58dd4b5b5d31cfd4092e38a5f2c894eee2ab078':
  avopt: Store defaults for AV_OPT_TYPE_FLAGS in the i64 union member

Conflicts:
	libavcodec/libvpxenc.c
	libavcodec/options_table.h
	libavfilter/vf_drawtext.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2012-09-05 14:09:09 +02:00
Michael Niedermayer d5f65e9d40 Merge commit '124134e42455763b28cc346fed1d07017a76e84e'
* commit '124134e42455763b28cc346fed1d07017a76e84e':
  avopt: Store defaults for AV_OPT_TYPE_CONST in the i64 union member

Conflicts:
	libavcodec/aacenc.c
	libavcodec/libopenjpegenc.c
	libavcodec/options_table.h
	libavdevice/bktr.c
	libavdevice/v4l2.c
	libavdevice/x11grab.c
	libavfilter/af_amix.c
	libavfilter/vf_drawtext.c
	libavformat/movenc.c
	libavformat/options_table.h
	libavutil/opt.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2012-09-05 13:58:11 +02:00
Martin Storsjö e6153f173a avopt: Store defaults for AV_OPT_TYPE_INT in the i64 union member
Signed-off-by: Martin Storsjö <martin@martin.st>
2012-09-04 23:13:44 +03:00
Martin Storsjö d58dd4b5b5 avopt: Store defaults for AV_OPT_TYPE_FLAGS in the i64 union member
Signed-off-by: Martin Storsjö <martin@martin.st>
2012-09-04 23:13:38 +03:00
Martin Storsjö 124134e424 avopt: Store defaults for AV_OPT_TYPE_CONST in the i64 union member
Signed-off-by: Martin Storsjö <martin@martin.st>
2012-09-04 23:13:32 +03:00
Paul B Mahol 1842b27564 lavu: 256 color support
Signed-off-by: Paul B Mahol <onemda@gmail.com>
2012-07-07 01:41:55 +00:00
Paul B Mahol 81416c2f64 swscale: use designated initializers for AVClass
Signed-off-by: Paul B Mahol <onemda@gmail.com>
2012-06-22 02:34:34 +00:00
Michael Niedermayer 2af8f2cea6 Merge remote-tracking branch 'qatar/master'
* qatar/master: (27 commits)
  cmdutils: use new avcodec_is_decoder/encoder() functions.
  lavc: make codec_is_decoder/encoder() public.
  lavc: deprecate AVCodecContext.sub_id.
  libcdio: add a forgotten AVClass to the private context.
  swscale: remove "cpu flags" from -sws_flags description.
  proresenc: give user a possibility to alter some encoding parameters
  vorbisenc: add output buffer overwrite protection
  libopencore-amrnbenc: fix end-of-stream handling
  ra144enc: fix end-of-stream handling
  nellymoserenc: zero any leftover packet bytes
  nellymoserenc: use proper MDCT overlap delay
  qpeg: Use bytestream2 functions to prevent buffer overreads.
  swscale: make %rep unconditional.
  vp8: convert simple loopfilter x86 assembly to use named arguments.
  vp8: convert idct x86 assembly to use named arguments.
  vp8: convert mc x86 assembly to use named arguments.
  vp8: convert loopfilter x86 assembly to use cpuflags().
  vp8: convert idct/mc x86 assembly to use cpuflags().
  swscale: remove now unnecessary hack.
  x86inc: don't "bake" stack_offset in named arguments.
  ...

Conflicts:
	cmdutils.c
	doc/APIchanges
	libavcodec/mpeg12.c
	libavcodec/options.c
	libavcodec/qpeg.c
	libavcodec/utils.c
	libavcodec/version.h
	libavdevice/libcdio.c
	tests/lavf-regression.sh

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2012-03-05 00:15:55 +01:00
Ronald S. Bultje 1c97b5c4a3 swscale: remove "cpu flags" from -sws_flags description. 2012-03-04 06:52:06 -08:00
Michael Niedermayer e99f1a8cc8 Merge remote-tracking branch 'qatar/master'
* qatar/master:
  dxva2: don't check for DXVA_PictureParameters->wDecodedPictureIndex
  img2: split muxer and demuxer into separate files
  rm: prevent infinite loops for index parsing.
  aac: fix infinite loop on end-of-frame with sequence of 1-bits.
  mov: Add more HDV and XDCAM FourCCs.
  lavf: don't set AVCodecContext.has_b_frames in compute_pkt_fields().
  rmdec: when using INT4 deinterleaving, error out if sub_packet_h <= 1.
  cdxl: correctly synchronize video timestamps to audio
  mlpdec_parser: fix a few channel layouts.
  Add channel names to channel_names[] array for channels added in b2890f5
  movenc: Buffer the mdat for the initial moov fragment, too
  flvdec: Ignore the index if the ignidx flag is set
  flvdec: Fix indentation
  movdec: Don't parse all fragments if ignidx is set
  movdec: Restart parsing root-level atoms at the right spot
  prores: use natural integer type for the codebook index
  mov: Add support for MPEG2 HDV 720p24 (hdv4)
  swscale: K&R formatting cosmetics (part I)
  swscale: variable declaration and placement cosmetics

Conflicts:
	configure
	libavcodec/aacdec.c
	libavcodec/mlp_parser.c
	libavformat/flvdec.c
	libavformat/img2.c
	libavformat/isom.h
	libavformat/mov.c
	libavformat/movenc.c
	libswscale/rgb2rgb.c
	libswscale/rgb2rgb_template.c
	libswscale/yuv2rgb.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2012-02-23 04:31:55 +01:00
Diego Biurrun 89d94b2182 swscale: K&R formatting cosmetics (part I) 2012-02-21 22:53:40 +01:00
Michael Niedermayer f884ef00de Merge remote-tracking branch 'qatar/master'
* qatar/master: (31 commits)
  tiffenc: initialize forgotten avctx.
  avplay: free the active audio packet at exit.
  avplay: free rdft data used for spectrogram analysis.
  log.h: make AVClass a named struct
  fix ac3 encoder documentation
  vc1: more prettyprinting cosmetics
  vc1: prettyprint some tables
  vc1: K&R formatting cosmetics
  AVOptions: bump minor and add APIchanges entry.
  cmdutils/avtools: simplify show_help() by using av_opt_child_class_next()
  AVOptions: rename FF_OPT_TYPE_* => AV_OPT_TYPE_*
  Remove all uses of deprecated AVOptions API.
  AVOptions: add av_opt_next, deprecate av_next_option.
  AVOptions: add functions for evaluating option strings.
  AVOptions: split get_number().
  AVOptions: add av_opt_get*, deprecate av_get*.
  AVOptions: add av_opt_set*().
  AVOptions: add new API for enumerating children.
  rv34: move inverse transform functions to DSP context
  flvenc: Write the right metadata entry count
  ...

Conflicts:
	avconv.c
	cmdutils.c
	doc/APIchanges
	ffplay.c
	ffprobe.c
	libavcodec/ac3dec.c
	libavcodec/h264.c
	libavcodec/libvpxenc.c
	libavcodec/libx264.c
	libavcodec/mpeg12enc.c
	libavcodec/options.c
	libavdevice/libdc1394.c
	libavdevice/v4l2.c
	libavfilter/vf_drawtext.c
	libavformat/flvdec.c
	libavformat/mpegtsenc.c
	libavformat/options.c
	libavutil/avutil.h
	libavutil/opt.c
	libswscale/utils.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2011-10-13 06:00:03 +02:00
Anton Khirnov 145f741e11 AVOptions: rename FF_OPT_TYPE_* => AV_OPT_TYPE_* 2011-10-12 16:51:16 +02:00
Michael Niedermayer 1889c6724a Merge remote-tracking branch 'qatar/master'
* qatar/master:
  AVOptions: fix av_set_string3() doxy to match reality.
  cmdutils: get rid of dummy contexts for examining AVOptions.
  lavf,lavc,sws: add {avcodec,avformat,sws}_get_class() functions.
  AVOptions: add AV_OPT_SEARCH_FAKE_OBJ flag for av_opt_find().
  cpu detection: avoid a signed overflow

Conflicts:
	avconv.c
	cmdutils.c
	doc/APIchanges
	ffmpeg.c
	libavcodec/options.c
	libavcodec/version.h
	libavformat/version.h
	libavutil/avutil.h

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2011-09-04 04:11:53 +02:00
Anton Khirnov fb4ca26bdb lavf,lavc,sws: add {avcodec,avformat,sws}_get_class() functions. 2011-09-03 20:53:35 +02:00
Michael Niedermayer 034fc7bf12 Merge remote-tracking branch 'qatar/master'
* qatar/master: (22 commits)
  configure: enable memalign_hack automatically when needed
  swscale: unbreak the build on non-x86 systems.
  swscale: remove if(bitexact) branch from functions.
  swscale: remove if(canMMX2BeUsed) conditional.
  swscale: remove swScale_{c,MMX,MMX2} duplication.
  swscale: use emms_c().
  Move emms_c() from libavcodec to libavutil.
  tiff: set palette in the context when specified in TIFF_PAL tag
  rtsp: use strtoul to parse rtptime and seq values.
  pgssubdec: fix incorrect colors.
  dvdsubdec: fix incorrect colors.
  ape: Allow demuxing of files with metadata tags.
  swscale: remove dead macro WRITEBGR24OLD.
  swscale: remove AMD3DNOW "optimizations".
  swscale: remove duplicate code in ppc/ subdirectory.
  swscale: remove duplicated x86/ functions.
  swscale: force --enable-runtime-cpudetect and remove SWS_CPU_CAPS_*.
  vsrc_buffer.h: add file doxy
  vsrc_buffer: tweak error message in init()
  msmpeg4: reindent.
  ...

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2011-05-25 06:32:45 +02:00
Ronald S. Bultje e66149e714 swscale: force --enable-runtime-cpudetect and remove SWS_CPU_CAPS_*. 2011-05-24 10:03:26 -04:00
Anton Khirnov b66752790a AVOptions: make default_val a union, as proposed in AVOption2.
This breaks API and ABI.
2011-05-10 20:22:06 +02:00
Michael Niedermayer ffb5a0d533 Merge commit '85770f2a2651497861ed938efcd0df3696ff5e45'
* commit '85770f2a2651497861ed938efcd0df3696ff5e45':
  AVOptions: make default_val a union, as proposed in AVOption2.
  Move ff_dynarray_add to lavu and make it public.
  lavf: remove duplicate assignment in avformat_alloc_context.
  lavf: use designated initializers for AVClasses.
  options: simplify av_find_opt by using av_next_option.

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2011-05-01 00:26:05 +02:00
Anton Khirnov 85770f2a26 AVOptions: make default_val a union, as proposed in AVOption2.
This breaks API and ABI.
2011-04-30 08:34:16 +02:00
Michael Niedermayer efb5fa79f5 Merge remote branch 'qatar/master'
* qatar/master: (37 commits)
  In avcodec_open(), set return code to an error value only when an error occurs instead of unconditionally at the start of the function.
  lavc: remove reference to opt.h from Makefile.
  prefer avio_check() over url_exist()
  avio: remove AVIO_* access symbols in favor of new AVIO_FLAG_* symbols
  lavu: remove misc disabled cruft
  lavu: remove FF_API_OLD_IMAGE_NAMES cruft
NOT PULLED  lavu: remove FF_API_OLD_EVAL_NAMES cruft
  lavc: remove misc disabled cruft.
  lavc: remove the FF_API_INOFFICIAL cruft.
  lavc: remove the FF_API_SET_STRING_OLD cruft.
  lavc: remove the FF_API_USE_LPC cruft.
  lavc: remove the FF_API_SUBTITLE_OLD cruft.
  lavc: remove the FF_API_VIDEO_OLD cruft.
  lavc: remove the FF_API_AUDIO_OLD cruft.
  lavc: remove the FF_API_OPT_SHOW cruft.
  lavc: remove the FF_API_MM_FLAGS cruft.
  lavf: remove misc disabled cruft.
  lavf: remove FF_API_INDEX_BUILT cruft
  lavf: remove FF_API_URL_CLASS cruft.
  lavf: remove FF_API_SYMVER cruft
  ...

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2011-04-20 04:48:23 +02:00
Anton Khirnov 41d0eb1c81 lavc: remove the FF_API_SET_STRING_OLD cruft. 2011-04-19 18:41:00 +02:00
Mans Rullgard 2912e87a6c Replace FFmpeg with Libav in licence headers
Signed-off-by: Mans Rullgard <mans@mansr.com>
2011-03-19 13:33:20 +00:00
Stefano Sabatini e60c906a82 Set the default value of param0 and param1 to SWS_PARAM_DEFAULT.
Originally committed as revision 32414 to svn://svn.mplayerhq.hu/mplayer/trunk/libswscale
2010-09-29 22:06:40 +00:00
Stefano Sabatini 6d21d67b38 Set valid default values for the srcw, srch, dstw, dsth options in the
scale context. Prevent pointless warnings when using
av_opt_set_defaults() for setting the default values, as in a pending
patch.

Originally committed as revision 32413 to svn://svn.mplayerhq.hu/mplayer/trunk/libswscale
2010-09-29 22:06:36 +00:00
Stefano Sabatini 5abd626e20 Amend constraints for the src_format and dst_format options in the
SWScale context.

Originally committed as revision 32403 to svn://svn.mplayerhq.hu/mplayer/trunk/libswscale
2010-09-29 13:02:28 +00:00
Michael Niedermayer 8c26d83edb Make the avoptions list of sws more complete.
Originally committed as revision 32369 to svn://svn.mplayerhq.hu/mplayer/trunk/libswscale
2010-09-26 19:48:49 +00:00
Ramiro Polla 539ff40c2d rgb2rgb: build SSE2 codepath
Originally committed as revision 32068 to svn://svn.mplayerhq.hu/mplayer/trunk/libswscale
2010-09-08 13:16:15 +00:00
Ramiro Polla dd68318cee Cosmetics:
- Place curly brackets in the same line as while/for/if/switch/else/do;
- Place curly brackets at column 0 in the next line starting a function.

Originally committed as revision 29523 to svn://svn.mplayerhq.hu/mplayer/trunk/libswscale
2009-08-16 21:11:28 +00:00
Stefano Sabatini a208350c3c Rename swscale_avoption.c to options.c.
Consistent with lavc and lavf.

Originally committed as revision 29188 to svn://svn.mplayerhq.hu/mplayer/trunk/libswscale
2009-04-18 13:52:00 +00:00