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Commit Graph

1367 Commits

Author SHA1 Message Date
Ronald S. Bultje
c0b87359b2 swscale: handle gray16 as a "planar" YUV format (Y-only, of course).
This allows removing any gray16-specific code, which is essentially
identical to the per-plane code in yuv2plane*().
2012-02-13 07:14:05 -08:00
Ronald S. Bultje
9d9c846491 swscale: use yuv2packed1() functions for unscaled chroma also. 2012-02-13 07:14:04 -08:00
Ronald S. Bultje
d63b7d8c37 swscale: fix incorrect chroma bias in yuv2rgb48_1_c(). 2012-02-13 07:14:04 -08:00
Ronald S. Bultje
1ca7dc60d2 swscale: fix invalid memory accesses in yuvpacked1() functions. 2012-02-13 07:14:04 -08:00
Michael Niedermayer
4e04e1b81e Merge remote-tracking branch 'qatar/master'
* qatar/master:
  swscale: convert yuv2yuvX() to using named arguments.
  swscale: rename "dstw" to "w" to prevent name collisions.
  swscale: use named registers in yuv2yuv1_plane() place.
  lavf: fix aspect ratio mismatch message.
  avconv: set AVFormatContext.duration from '-t'
  cljr: implement encode2.
  cljr: set the properties of the coded_frame, not input frame.
  dnxhdenc: switch to encode2.
  bmpenc: switch to encode2().

Conflicts:
	libavcodec/bmpenc.c
	libavcodec/cljr.c
	libavformat/utils.c
	tests/ref/vsynth1/cljr
	tests/ref/vsynth2/cljr

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2012-02-13 02:06:44 +01:00
Ronald S. Bultje
3e23badd83 swscale: convert yuv2yuvX() to using named arguments. 2012-02-12 08:27:51 -08:00
Ronald S. Bultje
8c433d8a03 swscale: rename "dstw" to "w" to prevent name collisions.
"dstw" can collide with the word-version of the "dst" argument, causing
all kind of weird stuff down the pipe.
2012-02-12 08:27:50 -08:00
Ronald S. Bultje
ef66a0ed2e swscale: use named registers in yuv2yuv1_plane() place.
Most of the function had been converted before, but I forgot this
particular location.
2012-02-12 08:27:50 -08:00
Michael Niedermayer
cd1c12b5c5 Merge remote-tracking branch 'qatar/master'
* qatar/master:
  FATE: update reference for seek-alac_mp4
  sunrast: Return AVERROR values instead of -1.
  sunrast: Add support for gray8 decoding.
  swscale: enforce a minimum filtersize.
  alacenc: use AVCodec.encode2()
  alacenc: cosmetics: indentation
  alacenc: consolidate bitstream writing into a single function.
  alacenc: only encode frame size in header for a final smaller frame
  alacenc: store current frame size in AlacEncodeContext.
  alacenc: return AVERROR codes in alac_encode_frame()
  alacenc: calculate a new max frame size for the final small frame
  alacenc: pretty-printing and other cosmetics
  alacenc: fix error handling and potential memleaks in alac_encode_init()
  alacenc: do not set coded_frame->key_frame
  alacenc: do not set bits_per_coded_sample
  alacenc: remove unneeded frame_size check in alac_encode_frame()
  tta: error out if samplerate is zero.
  ttadec: fix invalid free when an error occurs while decoding 24-bit tta
  wavpack: add needed braces for 2 statements inside an if block

Conflicts:
	tests/ref/acodec/alac

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2012-02-12 01:06:13 +01:00
Ronald S. Bultje
dae2ce361a swscale: enforce a minimum filtersize.
At very small dimensions, this calculation could lead to zero-sized
filters, which leads to uninitialized output, zero-sized allocations,
loop overflows in SIMD that uses do{..}while(i++<filtersize); instead
of for(i=0;i<filtersize;i++){..} and several other similar failures.
Therefore, require a minimum filtersize of 1.

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC: libav-stable@libav.org
2012-02-11 10:06:50 -08:00
Michael Niedermayer
8c6ebab747 Merge remote-tracking branch 'qatar/master'
* qatar/master: (26 commits)
  eac3dec: replace undefined 1<<31 with INT32_MIN in noise generation
  yadif: specify array size outside DECLARE_ALIGNED
  prores: specify array size outside DECLARE_ALIGNED brackets.
  WavPack demuxer: set packet duration
  tta: use skip_bits_long()
  mxfdec: Ignore the last entry in Avid's index table segments
  mxfdec: Sanity-check SampleRate
  mxfdec: Handle small EditUnitByteCount
  mxfdec: Consider OPAtom files that do not have exactly one EC to be OP1a
  mxfdec: Don't crash in mxf_packet_timestamps() if current_edit_unit overflows
  mxfdec: Zero nb_ptses in mxf_compute_ptses_fake_index()
  mxfdec: Sanity check PreviousPartition
  mxfdec: Never seek back in local sets and KLVs
  mxfdec: Move the current_partition check inside mxf_read_header()
  mxfdec: Fix infinite loop in mxf_packet_timestamps()
  mxfdec: Check eof_reached in mxf_read_local_tags()
  mxfdec: Check for NULL component
  mxfdec: Make sure mxf->nb_index_tables > 0 in mxf_packet_timestamps()
  mxfdec: Make sure x < index_table->nb_ptses
  build: Add missing directories to DIRS declarations.
  ...

Conflicts:
	doc/build_system.txt
	doc/fate.texi
	libavfilter/x86/yadif_template.c
	libavformat/mxfdec.c
	libavutil/Makefile
	tests/fate/audio.mak
	tests/fate/prores.mak
	tests/fate/screen.mak
	tests/fate/video.mak
	tests/ref/fate/bethsoft-vid
	tests/ref/fate/cscd
	tests/ref/fate/dfa4
	tests/ref/fate/nuv
	tests/ref/fate/vp8-sign-bias
	tests/ref/fate/wmv8-drm
	tests/ref/lavf/gxf

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2012-02-10 01:20:07 +01:00
Diego Biurrun
a2e40cd3e2 swscale: ppc: Add missing header #includes to pass 'make checkheaders'. 2012-02-09 12:26:46 +01:00
Michael Niedermayer
f2b20b7a8b Merge remote-tracking branch 'qatar/master'
* qatar/master:
  pixdesc: mark pseudopaletted formats with a special flag.
  avconv: switch to avcodec_encode_video2().
  libx264: implement encode2().
  libx264: split extradata writing out of encode_nals().
  lavc: add avcodec_encode_video2() that encodes from an AVFrame -> AVPacket
  cmdutils: update copyright year to 2012.
  swscale: sign-extend integer function argument to qword on x86-64.
  x86inc: support yasm -f win64 flag also.
  h264: manually save/restore XMM registers for functions using INIT_MMX.
  x86inc: allow manual use of WIN64_SPILL_XMM.
  aacdec: Use correct speaker order for 7.1.
  aacdec: Remove incorrect comment.
  aacdec: Simplify output configuration.
  Remove Sun medialib glue code.
  dsputil: set STRIDE_ALIGN to 16 for x86 also.
  pngdsp: swap argument inversion.

Conflicts:
	cmdutils.c
	configure
	doc/APIchanges
	ffmpeg.c
	libavcodec/aacdec.c
	libavcodec/dsputil.h
	libavcodec/libx264.c
	libavcodec/mlib/dsputil_mlib.c
	libavcodec/utils.c
	libavfilter/vf_scale.c
	libavutil/avutil.h
	libswscale/mlib/yuv2rgb_mlib.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2012-02-09 01:27:12 +01:00
Anton Khirnov
38d5533228 pixdesc: mark pseudopaletted formats with a special flag.
This makes it possible to dintinguish them from PAL8.

Fixes an invalid write in avpicture_layout().
2012-02-08 21:01:31 +01:00
Ronald S. Bultje
783487ae44 swscale: sign-extend integer function argument to qword on x86-64. 2012-02-08 10:31:14 -08:00
Diego Biurrun
0144fe6995 Remove Sun medialib glue code.
It is obscure, most likely unused and not bit-exact compared to
libavcodec due to a different IDCT transform algorithm.
2012-02-08 08:52:30 +01:00
Michael Niedermayer
18d0a16fc9 Merge remote-tracking branch 'qatar/master'
* qatar/master:
  swscale: make yuv2yuv1 use named registers.
  h264: mark h264_idct_add8_10 with number of XMM registers.
  swscale: fix V plane memory location in bilinear/unscaled RGB/YUYV case.
  vp8: always update next_framep[] before returning from decode_frame().
  avconv: estimate next_dts from framerate if it is set.
  avconv: better next_dts usage.
  avconv: rename InputStream.pts to last_dts.
  avconv: reduce overloading for InputStream.pts.
  avconv: rename InputStream.next_pts to next_dts.
  avconv: rework -t handling for encoding.
  avconv: set encoder timebase for subtitles.
  pva-demux test: add -vn
  swscale: K&R formatting cosmetics for SPARC code
  apedec: allow the user to set the maximum number of output samples per call
  apedec: do not unnecessarily zero output samples for mono frames
  apedec: allocate a single flat buffer for decoded samples
  apedec: use sizeof(field) instead of sizeof(type)
  swscale: split C output functions into separate file.
  swscale: Split C input functions into separate file.
  bytestream: Add bytestream2 writing API.

The avconv changes are due to massive regressions and bugs not merged yet.

Conflicts:
	ffmpeg.c
	libavcodec/vp8.c
	libswscale/swscale.c
	libswscale/x86/swscale_template.c
	tests/fate/demux.mak
	tests/ref/lavf/asf
	tests/ref/lavf/avi
	tests/ref/lavf/mkv
	tests/ref/lavf/mpg
	tests/ref/lavf/nut
	tests/ref/lavf/ogg
	tests/ref/lavf/rm
	tests/ref/lavf/ts
	tests/ref/seek/lavf_avi
	tests/ref/seek/lavf_mkv
	tests/ref/seek/lavf_rm

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2012-02-08 05:53:35 +01:00
Ronald S. Bultje
ef1c785f11 swscale: make yuv2yuv1 use named registers. 2012-02-07 11:38:13 -08:00
Ronald S. Bultje
b7542dd3d7 swscale: fix V plane memory location in bilinear/unscaled RGB/YUYV case.
Fixes bug 221.

CC: libav-stable@libav.org
2012-02-07 11:33:20 -08:00
Diego Biurrun
06b320ad78 swscale: K&R formatting cosmetics for SPARC code 2012-02-07 19:49:49 +01:00
Ronald S. Bultje
2144941069 swscale: split C output functions into separate file.
Signed-off-by: Diego Biurrun <diego@biurrun.de>
2012-02-07 12:03:51 +01:00
Ronald S. Bultje
2dd7a1c030 swscale: Split C input functions into separate file.
Signed-off-by: Diego Biurrun <diego@biurrun.de>
2012-02-07 12:03:50 +01:00
Michael Niedermayer
d77294c5e4 Merge remote-tracking branch 'qatar/master'
* qatar/master:
  libx264: fix indentation.
  vorbis: fix overflows in floor1[] vector and inverse db table index.
  win64: add a XMM clobber test configure option.
  movdec: Parse the dvc1 atom
  ARM: ac3: fix ac3_bit_alloc_calc_bap_armv6
  swscale: K&R formatting cosmetics for Blackfin code
  frwu: lowercase the FRWU codec name
  movdec: fix dts generation in fragmented files
  fate: make acodec-ac3_fixed test output raw AC3
  APIchanges: add missing commit hashes
  swscale: implement MMX, SSE2 and AVX functions for RGB32 input.
  ra144enc: drop pointless "encoder" from .long_name
  bethsoftvideo: fix palette reading.
  mpc7: use av_fast_padded_malloc()
  mpc7: simplify handling of packet sizes that are not a multiple of 4 bytes
  doc: decoding Forward Uncompressed is supported
  Fix a typo in the x86 asm version of ff_vector_clip_int32()
  pcmenc: Do not set avpkt->size.
  ff_alloc_packet: modify the size of the packet to match the requested size

Conflicts:
	doc/APIchanges
	libavcodec/libx264.c
	libavcodec/mpc7.c
	libavformat/isom.h
	libswscale/Makefile
	libswscale/bfin/yuv2rgb_bfin.c
	tests/ref/fate/bethsoft-vid
	tests/ref/seek/ac3_ac3

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2012-02-03 03:51:32 +01:00
Ronald S. Bultje
7e4d9d5d45 win64: add a XMM clobber test configure option.
This will be useful to test more aggressively for failures to mark XMM
registers as clobbered in Win64 builds, and prevent regressions thereof.

Based on a patch by Ramiro Polla <ramiro.polla@gmail.com>
2012-02-02 12:00:48 -08:00
Diego Biurrun
148bc235b0 swscale: K&R formatting cosmetics for Blackfin code
Also prettyprint some comments in Assembly code.
2012-02-02 18:50:12 +01:00
Ronald S. Bultje
de53b9068a swscale: implement MMX, SSE2 and AVX functions for RGB32 input. 2012-02-01 21:55:32 -08:00
Michael Niedermayer
4c677df27c Merge remote-tracking branch 'qatar/master'
* qatar/master: (22 commits)
  frwu: Employ more meaningful return values.
  fraps: Use av_fast_padded_malloc() instead of av_realloc()
  mjpegdec: use av_fast_padded_malloc()
  eatqi: use av_fast_padded_malloc()
  asv1: use av_fast_padded_malloc()
  avcodec: Add av_fast_padded_malloc().
  swscale: enable dithering in MMX functions.
  swscale: make rgb24 function macros slightly smaller.
  avcodec.h: Remove some disabled cruft.
  swscale: remove obsolete comment.
  swscale-test: Drop unused argc and argv arguments from main().
  zmbv: Employ more meaningful return values.
  zmbvenc: Employ more meaningful return values.
  vc1: prevent null pointer dereference on broken files
  zmbv: check av_realloc() return values and avoid memleaks on ENOMEM
  truespeech: align buffer
  ac3: Do not read past the end of ff_ac3_band_start_tab.
  dv: Fix small stack overread related to CVE-2011-3929 and CVE-2011-3936.
  dv: Fix null pointer dereference due to ach=0
  dv: check stype
  ...

Conflicts:
	doc/APIchanges
	libavcodec/asv1.c
	libavcodec/avcodec.h
	libavcodec/eatqi.c
	libavcodec/fraps.c
	libavcodec/frwu.c
	libavcodec/zmbv.c
	libavformat/dv.c
	libswscale/swscale.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2012-02-02 02:24:09 +01:00
Ronald S. Bultje
378c5ef9ae swscale: enable dithering in MMX functions.
This was accidently disabled.

Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
2012-02-01 09:33:29 -08:00
Ronald S. Bultje
212f161caa swscale: make rgb24 function macros slightly smaller. 2012-02-01 09:33:13 -08:00
Ronald S. Bultje
f5490fbe3b swscale: remove obsolete comment. 2012-02-01 07:17:01 -08:00
Diego Biurrun
2e3fb9e372 swscale-test: Drop unused argc and argv arguments from main(). 2012-02-01 14:24:25 +01:00
Michael Niedermayer
151ecc2aec Merge remote-tracking branch 'qatar/master'
* qatar/master: (26 commits)
  avconv: deprecate the -deinterlace option
  doc: Fix the name of the new function
  aacenc: make sure to encode enough frames to cover all input samples.
  aacenc: only use the number of input samples provided by the user.
  wmadec: Verify bitstream size makes sense before calling init_get_bits.
  kmvc: Log into a context at a log level constant.
  mpeg12: Pad framerate tab to 16 entries.
  kgv1dec: Increase offsets array size so it is large enough.
  kmvc: Check palsize.
  nsvdec: Propagate errors
  nsvdec: Be more careful with av_malloc().
  nsvdec: Fix use of uninitialized streams.
  movenc: cosmetics: Get rid of camelCase identifiers
  swscale: more generic check for planar destination formats with alpha
  doc: Document mov/mp4 fragmentation options
  build: Use order-only prerequisites for creating FATE reference file dirs.
  x86 dsputil: provide SSE2/SSSE3 versions of bswap_buf
  rtsp: Remove some unused variables from ff_rtsp_connect().
  avutil: make intfloat api public
  avformat_write_header(): detail error message
  ...

Conflicts:
	doc/APIchanges
	doc/ffmpeg.texi
	doc/muxers.texi
	ffmpeg.c
	libavcodec/kmvc.c
	libavcodec/x86/Makefile
	libavcodec/x86/dsputil_yasm.asm
	libavcodec/x86/pngdsp-init.c
	libavformat/movenc.c
	libavformat/movenc.h
	libavformat/mpegtsenc.c
	libavformat/nsvdec.c
	libavformat/utils.c
	libavutil/avutil.h
	libswscale/swscale.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2012-01-31 02:46:26 +01:00
Paul B Mahol
08d8029ea8 swscale: more generic check for planar destination formats with alpha
Signed-off-by: Paul B Mahol <onemda@gmail.com>
Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
2012-01-30 07:37:13 -08:00
Michael Niedermayer
c065255bba Merge remote-tracking branch 'qatar/master'
* qatar/master:
  aacenc: Fix LONG_START windowing.
  aacenc: Fix a bug where deinterleaved samples were stored in the wrong place.
  avplay: use the correct array size for stride.
  lavc: extend doxy for avcodec_alloc_context3().
  APIchanges: mention avcodec_alloc_context()/2/3
  avcodec_align_dimensions2: set only 4 linesizes, not AV_NUM_DATA_POINTERS.
  aacsbr: ARM NEON optimised sbrdsp functions
  aacsbr: align some arrays
  aacsbr: move some simdable loops to function pointers
  cosmetics: Remove extra newlines at EOF

Conflicts:
	libavcodec/utils.c
	libavfilter/formats.c
	libavutil/mem.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2012-01-29 00:34:59 +01:00
Paul B Mahol
762311ff94 swscale: fix conversion into yuva444p from non-alpha formats
Signed-off-by: Paul B Mahol <onemda@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2012-01-28 17:37:08 +01:00
Paul B Mahol
7bab43f29c yuv2rgb: better check if source format have alpha
Signed-off-by: Paul B Mahol <onemda@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2012-01-28 17:37:08 +01:00
Michael Niedermayer
e37f161e66 Merge remote-tracking branch 'qatar/master'
* qatar/master: (71 commits)
  movenc: Allow writing to a non-seekable output if using empty moov
  movenc: Support adding isml (smooth streaming live) metadata
  libavcodec: Don't crash in avcodec_encode_audio if time_base isn't set
  sunrast: Document the different Sun Raster file format types.
  sunrast: Add a check for experimental type.
  libspeexenc: use AVSampleFormat instead of deprecated/removed SampleFormat
  lavf: remove disabled FF_API_SET_PTS_INFO cruft
  lavf: remove disabled FF_API_OLD_INTERRUPT_CB cruft
  lavf: remove disabled FF_API_REORDER_PRIVATE cruft
  lavf: remove disabled FF_API_SEEK_PUBLIC cruft
  lavf: remove disabled FF_API_STREAM_COPY cruft
  lavf: remove disabled FF_API_PRELOAD cruft
  lavf: remove disabled FF_API_NEW_STREAM cruft
  lavf: remove disabled FF_API_RTSP_URL_OPTIONS cruft
  lavf: remove disabled FF_API_MUXRATE cruft
  lavf: remove disabled FF_API_FILESIZE cruft
  lavf: remove disabled FF_API_TIMESTAMP cruft
  lavf: remove disabled FF_API_LOOP_OUTPUT cruft
  lavf: remove disabled FF_API_LOOP_INPUT cruft
  lavf: remove disabled FF_API_AVSTREAM_QUALITY cruft
  ...

Conflicts:
	doc/APIchanges
	libavcodec/8bps.c
	libavcodec/avcodec.h
	libavcodec/libx264.c
	libavcodec/mjpegbdec.c
	libavcodec/options.c
	libavcodec/sunrast.c
	libavcodec/utils.c
	libavcodec/version.h
	libavcodec/x86/h264_deblock.asm
	libavdevice/libdc1394.c
	libavdevice/v4l2.c
	libavformat/avformat.h
	libavformat/avio.c
	libavformat/avio.h
	libavformat/aviobuf.c
	libavformat/dv.c
	libavformat/mov.c
	libavformat/utils.c
	libavformat/version.h
	libavformat/wtv.c
	libavutil/Makefile
	libavutil/file.c
	libswscale/x86/input.asm
	libswscale/x86/swscale_mmx.c
	libswscale/x86/swscale_template.c
	tests/ref/lavf/ffm

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2012-01-28 07:53:34 +01:00
Alex Converse
7181c4edee cosmetics: Remove extra newlines at EOF 2012-01-27 17:19:09 -08:00
Paul B Mahol
f9ca1ac796 sws/pixfmt/pixdesc: add support for yuva444p
Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>

Conflicts:

	libavutil/avutil.h
	libavutil/pixfmt.h
2012-01-28 01:30:41 +01:00
Ronald S. Bultje
b5d08c27c3 swscale: convert rgb/bgr24ToY/UV_mmx functions from inline asm to yasm.
Also implement sse2/ssse3/avx versions.
2012-01-27 11:00:30 +08:00
Ronald S. Bultje
3b15a6d742 config.asm: change %ifdef directives to %if directives.
This allows combining multiple conditionals in a single statement.
2012-01-27 10:19:57 +08:00
Alex Converse
08628b6afb Revert "sws/pixfmt/pixdesc: add support for yuva444p"
This reverts commit fc115c80b7.

Tests are broken.
2012-01-26 18:06:57 -08:00
Paul B Mahol
fc115c80b7 sws/pixfmt/pixdesc: add support for yuva444p
Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
2012-01-27 09:24:08 +08:00
Michael Niedermayer
3c5fe5b527 Merge remote-tracking branch 'qatar/master'
* qatar/master: (22 commits)
  wma: Clip WMA1 and WMA2 frame length to 11 bits.
  movenc: Don't require frame_size to be set for modes other than mov
  doc: Update APIchanges with info on muxer flushing
  movenc: Reindent a block
  tools: Remove some unnecessary #undefs.
  rv20: prevent calling ff_h263_decode_mba() with unset height/width
  tools: K&R reformatting cosmetics
  Ignore generated aviocat and ismindex tools.
  build: Automatically include architecture-specific library Makefile snippets.
  indeo5: prevent null pointer dereference on broken files
  pktdumper: Use usleep instead of sleep
  cosmetics: Remove some unnecessary block braces.
  Drop unnecessary prefix from *sink* variable and struct names.
  Add a tool for creating smooth streaming manifests
  movdec: Calculate an average bit rate for fragmented streams, too
  movenc: Write the sample rate instead of time scale in the stsd atom
  movenc: Add a separate ismv/isma (smooth streaming) muxer
  movenc: Allow the caller to decide on fragmentation
  libavformat: Add a flag for muxers that support write_packet(NULL) for flushing
  movenc: Add support for writing fragmented mov files
  ...

Conflicts:
	Changelog
	cmdutils.c
	cmdutils.h
	doc/APIchanges
	ffmpeg.c
	ffplay.c
	libavfilter/Makefile
	libavformat/Makefile
	libavformat/avformat.h
	libavformat/movenc.c
	libavformat/movenc.h
	libavformat/version.h
	tools/graph2dot.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2012-01-26 02:23:56 +01:00
Diego Biurrun
33ad8c3cab cosmetics: Remove some unnecessary block braces. 2012-01-25 13:14:49 +01:00
Michael Niedermayer
1c910d2f11 sws: Fix RGB0->alpha containing formats.
Fixes Ticket869

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2012-01-24 17:01:10 +01:00
Michael Niedermayer
234405315f sws: Fix unscaled >8bit planar chroma handling.
Fixes Ticket840

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2012-01-22 15:30:06 +01:00
Michael Niedermayer
0421b6dc7a sws: In case of an invalid scaler algorithm, show the invalid value.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2012-01-22 06:57:17 +01:00
Michael Niedermayer
657878f76e sws: fix copy case detection with gray8a.
Fixes gray_alpha.png

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2012-01-22 00:46:19 +01:00
Michael Niedermayer
4640da7e58 Merge remote-tracking branch 'qatar/master'
* qatar/master:
  sgidec: Use bytestream2 functions to prevent buffer overreads.
  cosmetics: Move static and inline attributes to more standard places.
  configure: provide libavfilter/version.h header to get_version()
  swscale: change yuv2yuvX code to use cpuflag().
  libx264: Don't leave max_b_frames as -1 if the user didn't set it
  FATE: convert output to rgba for the targa tests which currently output pal8
  fate: add missing reference files for targa tests in 9c2f9b0e2
  FATE: enable the 2 remaining targa conformance suite tests
  targa: add support for rgb555 palette
  FATE: fix targa tests on big-endian systems

Conflicts:
	libavcodec/sgidec.c
	libavcodec/targa.c
	libswscale/x86/output.asm
	tests/fate/image.mak

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2012-01-15 01:16:54 +01:00
Michael Niedermayer
5a840f6364 x86/yuv2rgb_mmx: Remove yuv420 check.
This check is not correct, the code supports more yuv variants.
Fixes Ticket904

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2012-01-14 21:42:56 +01:00
Diego Biurrun
e44c11e9fa cosmetics: Move static and inline attributes to more standard places.
Fixes several "‘static’ is not at beginning of declaration" warnings.
2012-01-14 17:32:36 +01:00
Michael Niedermayer
e986a5d10d Merge remote-tracking branch 'qatar/master'
* qatar/master:
  FATE: add tests for targa
  ARM: fix Thumb-mode simple_idct_arm
  ARM: 4-byte align start of all asm functions
  rgb2rgb: rgb12to15()
  swscale-test: fix stack overread.
  swscale: fix invalid conversions and memory problems.
  cabac: split cabac.h into declarations and function definitions
  cabac: Mark ff_h264_mps_state array as static, it is only used within cabac.c.
  cabac: Remove ff_h264_lps_state array.

Conflicts:
	libswscale/rgb2rgb.h
	libswscale/swscale_unscaled.c
	tests/fate/image.mak

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2012-01-14 02:22:09 +01:00
Ronald S. Bultje
3c172a4106 swscale: change yuv2yuvX code to use cpuflag(). 2012-01-13 16:57:01 -08:00
Paul B Mahol
0cc1a86dc3 rgb2rgb: rgb12to15()
Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
2012-01-12 16:43:17 -08:00
Ronald S. Bultje
06b0246da0 swscale-test: fix stack overread.
Fixes problems in swscale-test where it gives a 3-member array to a
function expecting a 4-member array.
2012-01-12 16:38:29 -08:00
Ronald S. Bultje
e7843db3df swscale: fix invalid conversions and memory problems.
Fixes problems where rgbToRgbWrapper() is called even though it doesn't
support this particular conversion (e.g. converting from RGB444 to
anything). Thirdly, fixes issues where rgbToRgbWrapper() is called for
non-native endiannness conversions (e.g. RGB555BE on a LE system).
Fourthly, fixes crashes when converting from e.g. monowhite to
monowhite, which calls planarCopyWrapper() and overwrites/reads because
n_bytes != n_pixels.
2012-01-12 16:38:29 -08:00
Michael Niedermayer
b18e17eabf Merge remote-tracking branch 'qatar/master'
* qatar/master: (21 commits)
  utils: Check for extradata size overflows.
  ARM: rv34: fix asm syntax in dc transform functions
  avio: Fix the value of the deprecated URL_FLAG_NONBLOCK
  rv34: fix and optimise frame dependency checking
  rv34: NEON optimised dc only inverse transform
  avprobe: use avio_size() instead of deprecated AVFormatContext.file_size.
  ffmenc: remove references to deprecated AVFormatContext.timestamp.
  lavf: undeprecate read_seek().
  avserver: remove code using deprecated CODEC_CAP_PARSE_ONLY.
  lavc: replace some remaining FF_I_TYPE with AV_PICTURE_TYPE_I
  lavc: ifdef out parse_only AVOption
  nellymoserdec: SAMPLE_FMT -> AV_SAMPLE_FMT
  mpegvideo_enc: ifdef out/replace references to deprecated codec flags.
  riff: remove references to sonic codec ids
  indeo4: add some missing static and const qualifiers
  rv34: DC-only inverse transform
  avconv: use AVFrame.width/height/format instead of corresponding AVCodecContext fields
  lavfi: move version macros to a new installed header version.h
  vsrc_buffer: release the buffer on uninit.
  rgb2rgb: rgb12tobgr12()
  ...

Conflicts:
	avconv.c
	doc/APIchanges
	ffprobe.c
	libavfilter/Makefile
	libavfilter/avfilter.h
	libswscale/rgb2rgb.c
	libswscale/rgb2rgb.h

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2012-01-13 01:29:48 +01:00
Carl Eugen Hoyos
ef3a19d595 Fix compilation with yasm-0.6.2 2012-01-12 16:35:49 +01:00
Michael Niedermayer
05577aafaa sws: yuv2rgb asm, add memory clobber.
This fixes dithering for rgb555le, it appears gcc had moved the
setup of the variables after the asm or something like that.

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2012-01-12 16:32:55 +01:00
Paul B Mahol
f7f3563214 rgb2rgb: rgb12tobgr12()
Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
2012-01-11 15:52:53 -08:00
Michael Niedermayer
bc11580007 sws: Remove unneeded YUV cliping from yuv2rgb_X_c_template()
This should slightly improve speed.

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2012-01-11 21:29:59 +01:00
Michael Niedermayer
ba6e36f906 swscale: Force full horizontal chroma internally when the output has a odd size.
This fixes a gray line on the right side due to 1 column of pixels being skiped.
Fixes Ticket891

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2012-01-11 21:27:21 +01:00
Michael Niedermayer
0644cabd7a sws: Move yuv2rgb clipping into the tables.
This fixes some cases where the clipping was entirely missing.

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Thanks (for the comments and review) -to: Reimar, beastd, Ronald
2012-01-11 15:04:02 +01:00
Michael Niedermayer
ac7efd3364 sws: fix unscaled LE<->BE rgb<->bgr
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2012-01-11 04:07:02 +01:00
Michael Niedermayer
0e7fc3cafe Merge remote-tracking branch 'qatar/master'
* qatar/master: (22 commits)
  rv34: frame-level multi-threading
  mpegvideo: claim ownership of referenced pictures
  aacsbr: prevent out of bounds memcpy().
  ipmovie: fix pts for CODEC_ID_INTERPLAY_DPCM
  sierravmd: fix audio pts
  bethsoftvideo: Use bytestream2 functions to prevent buffer overreads.
  bmpenc: support for PIX_FMT_RGB444
  swscale: fix crash in fast_bilinear code when compiled with -mred-zone.
  swscale: specify register type.
  rv34: use get_bits_left()
  avconv: reinitialize the filtergraph on resolution change.
  vsrc_buffer: error on changing frame parameters.
  avconv: fix -copyinkf.
  fate: Update file checksums after the mov muxer change in a78dbada55
  movenc: Don't store a nonzero creation time if nothing was set by the caller
  bmpdec: support for rgb444 with bitfields compression
  rgb2rgb: allow conversion for <15 bpp
  doc: fix stray reference to FFmpeg
  v4l2: use C99 struct initializer
  v4l2: poll the file descriptor
  ...

Conflicts:
	avconv.c
	libavcodec/aacsbr.c
	libavcodec/bethsoftvideo.c
	libavcodec/kmvc.c
	libavdevice/v4l2.c
	libavfilter/vsrc_buffer.c
	libswscale/swscale_unscaled.c
	libswscale/x86/input.asm
	tests/ref/acodec/alac
	tests/ref/acodec/pcm_s16be
	tests/ref/acodec/pcm_s24be
	tests/ref/acodec/pcm_s32be
	tests/ref/acodec/pcm_s8
	tests/ref/lavf/mov
	tests/ref/vsynth1/dnxhd_1080i
	tests/ref/vsynth1/mpeg4
	tests/ref/vsynth1/qtrle
	tests/ref/vsynth1/svq1
	tests/ref/vsynth2/dnxhd_1080i
	tests/ref/vsynth2/mpeg4
	tests/ref/vsynth2/qtrle
	tests/ref/vsynth2/svq1

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2012-01-11 02:44:43 +01:00
Michael Niedermayer
a9bd29e15e Merge remote-tracking branch 'richardpl/sws'
* richardpl/sws:
  rgb2rgb: remove unused bgr8torgb8()
  rgb2rgb: rgb12tobgr12()
  rgb2rgb: allow conversion for <15 bpp
  bmpenc: support for PIX_FMT_RGB444
  bmpdec: support for rgb444 with bitfields compression

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2012-01-10 23:12:24 +01:00
Michael Niedermayer
5ab6f0fe5a Revert "swscale: fix integer overflows in RGB pixel writing."
This reverts commit 77d88b872d.

The revert fixes actual overflows and a segfault as the variables
are signed and can be negative.

Conflicts:

	libswscale/swscale.c

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2012-01-10 20:12:39 +01:00
Paul B Mahol
296a338261 rgb2rgb: remove unused bgr8torgb8()
RGB8 and BGR8 are paletted formats now.
2012-01-10 18:28:40 +00:00
Paul B Mahol
4ad40d6d9f rgb2rgb: rgb12tobgr12() 2012-01-10 18:00:38 +00:00
Paul B Mahol
277030627d rgb2rgb: allow conversion for <15 bpp 2012-01-10 18:00:38 +00:00
Ronald S. Bultje
b14fa5572c swscale: fix crash in fast_bilinear code when compiled with -mred-zone.
Additional comments from Måns Rullgard have been integrated
by Reinhard Tartler.

Signed-off-by: Reinhard Tartler <siretart@tauware.de>
2012-01-10 18:20:37 +01:00
Oka Motofumi
cd44521625 swscale: specify register type.
Fixes a compilation failure on win64.

Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
2012-01-10 09:17:37 -08:00
Paul B Mahol
0b8b3387a9 rgb2rgb: allow conversion for <15 bpp
Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
2012-01-09 20:09:41 -08:00
Michael Niedermayer
dd3ca3ea15 Merge remote-tracking branch 'qatar/master'
* qatar/master:
  fate: Add tests for more AAC features.
  aacps: Add missing newline in error message.
  fate: Add tests for vc1/wmapro in ism.
  aacdec: Add a fate test for 5.1 channel SBR.
  aacdec: Turn off PS for multichannel files that use PCE based configs.
  cabac: remove put_cabac_u/ueg from cabac-test.
  swscale: RGB4444 and BGR444 input
  FATE: add test for xWMA demuxer.
  FATE: add test for SMJPEG demuxer and associated IMA ADPCM audio decoder.
  mpegaudiodec: optimized iMDCT transform
  mpegaudiodec: change imdct window arrangment for better pointer alignment
  mpegaudiodec: move imdct and windowing function to mpegaudiodsp
  mpegaudiodec: interleave iMDCT buffer to simplify future SIMD implementations
  swscale: convert yuy2/uyvy/nv12/nv21ToY/UV from inline asm to yasm.
  FATE: test to exercise WTV demuxer.
  mjpegdec: K&R formatting cosmetics
  swscale: K&R formatting cosmetics for code examples
  swscale: K&R reformatting cosmetics for header files
  FATE test: cvid-grayscale; ensures that the grayscale Cinepak variant is exercised.

Conflicts:
	libavcodec/cabac.c
	libavcodec/mjpegdec.c
	libavcodec/mpegaudiodec.c
	libavcodec/mpegaudiodsp.c
	libavcodec/mpegaudiodsp.h
	libavcodec/mpegaudiodsp_template.c
	libavcodec/x86/Makefile
	libavcodec/x86/imdct36_sse.asm
	libavcodec/x86/mpegaudiodec_mmx.c
	libswscale/swscale-test.c
	libswscale/swscale.c
	libswscale/swscale_internal.h
	libswscale/x86/swscale_template.c
	tests/fate/demux.mak
	tests/fate/microsoft.mak
	tests/fate/video.mak
	tests/fate/wma.mak
	tests/ref/lavfi/pixfmts_scale

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2012-01-10 03:50:41 +01:00
Paul B Mahol
5cad970971 swscale: RGB4444 and BGR444 input
Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
2012-01-08 20:19:41 -08:00
Ronald S. Bultje
2170a0e6ad swscale: convert yuy2/uyvy/nv12/nv21ToY/UV from inline asm to yasm.
Also implement SSE2/AVX variants.
2012-01-08 16:37:43 -08:00
Diego Biurrun
999484c9fb swscale: K&R formatting cosmetics for code examples 2012-01-08 23:32:57 +01:00
Diego Biurrun
83890c66c4 swscale: K&R reformatting cosmetics for header files 2012-01-08 23:32:56 +01:00
Michael Niedermayer
3edff185ab Merge remote-tracking branch 'qatar/master'
* qatar/master: (21 commits)
  ipmovie: do not read audio packets before the codec is known
  truemotion2: check size before GetBitContext initialisation
  avio: Only do implicit network initialization for network protocols
  avio: Add an URLProtocol flag for indicating that a protocol uses network
  adpcm: ADPCM Electronic Arts has always two channels
  matroskadec: Fix a bug where a pointer was cached to an array that might later move due to a realloc()
  fate: Add missing reference file from 9b4767e4.
  mov: Support MOV_CH_LAYOUT_USE_DESCRIPTIONS for labeled descriptions.
  4xm: Prevent buffer overreads.
  mjpegdec: parse RSTn to prevent skipping other data in mjpeg_decode_scan
  vp3: add fate test for non-zero last coefficient
  vp3: fix streams with non-zero last coefficient
  swscale: remove unused U/V arguments from yuv2rgb_write().
  timer: K&R formatting cosmetics
  lavf: cosmetics, reformat av_read_frame().
  lavf: refactor av_read_frame() to make it easier to understand.
  Report an error if pitch_lag is zero in AMR-NB decoder.
  Revert "4xm: Prevent buffer overreads."
  4xm: Prevent buffer overreads.
  4xm: pass the correct remaining buffer size to decode_i2_frame().
  ...

Conflicts:
	libavcodec/4xm.c
	libavcodec/mjpegdec.c
	libavcodec/truemotion2.c
	libavformat/ipmovie.c
	libavformat/mov_chan.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2012-01-06 02:45:12 +01:00
Ronald S. Bultje
2ba65879b5 swscale: remove unused U/V arguments from yuv2rgb_write().
Also document the function somewhat.
2012-01-05 07:17:01 -08:00
Michael Niedermayer
7f83db3124 Merge remote-tracking branch 'qatar/master'
* qatar/master: (46 commits)
  mtv: Make sure audio_subsegments is not 0
  v4l2: use V4L2_FMT_FLAG_EMULATED only if it is defined
  avconv: add symbolic names for -vsync parameters
  flvdec: Fix compiler warning for uninitialized variables
  rtsp: Fix compiler warning for uninitialized variable
  ulti: convert to new bytestream API.
  swscale: Use standard multiple inclusion guards in ppc/ header files.
  Place some START_TIMER invocations in separate blocks.
  v4l2: list available formats
  v4l2: set the proper codec_tag
  v4l2: refactor device_open
  v4l2: simplify away io_method
  v4l2: cosmetics
  v4l2: uniform and format options
  v4l2: do not force interlaced mode
  avio: exit early in fill_buffer without read_packet
  vc1dec: fix invalid memory access for small video dimensions
  rv34: fix invalid memory access for small video dimensions
  rv34: joint coefficient decoding and dequantization
  avplay: Don't call avio_set_interrupt_cb(NULL)
  ...

Conflicts:
	Changelog
	avconv.c
	doc/APIchanges
	doc/indevs.texi
	libavcodec/adxenc.c
	libavcodec/dnxhdenc.c
	libavcodec/h264.c
	libavdevice/v4l2.c
	libavformat/flvdec.c
	libavformat/mtv.c
	libswscale/utils.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2012-01-05 02:03:12 +01:00
Diego Biurrun
3d72a6f19e swscale: Use standard multiple inclusion guards in ppc/ header files. 2012-01-04 16:39:37 +01:00
Ronald S. Bultje
6b3995ccd1 swscale: remove obsolete comment. 2012-01-03 20:02:17 -08:00
Ronald S. Bultje
6ea64339c5 swscale: split scale.asm.
scale.asm keeps horizontal scaling functions, whereas output.asm gets
the vertical scaling/output functions.
2012-01-03 20:02:07 -08:00
Ronald S. Bultje
9ea3501d87 swscale: don't show full-chroma-int warning for non-RGB output.
Non-RGB output always uses full chroma interpolation.
2012-01-03 20:01:21 -08:00
Ronald S. Bultje
f910dbcdb0 swscale: add MMX files to MMX-OBJS instead of OBJS. 2012-01-03 20:01:15 -08:00
Michael Niedermayer
7d8f115843 Merge remote-tracking branch 'qatar/master'
* qatar/master:
  mpegenc: use avctx->slices as number of slices
  v410enc: fix undefined signed left shift caused by integer promotion
  Release notes: mention cleaned up header includes
  fix Changelog file
  Fix a bunch of typos.
  Drop some pointless void* return value casts from av_malloc() invocations.
  wavpack: fix typos in previous cosmetic clean-up commit
  wavpack: cosmetics: K&R pretty-printing
  avconv: remove the 'codec framerate is different from stream' warning
  wavpack: determine sample_fmt before requesting a buffer
  bmv audio: implement new audio decoding API
  mpegaudiodec: skip all channels when skipping granules
  mpegenc: simplify muxrate calculation

Conflicts:
	Changelog
	avconv.c
	doc/RELEASE_NOTES
	libavcodec/h264.c
	libavcodec/mpeg12.c
	libavcodec/mpegaudiodec.c
	libavcodec/mpegvideo.c
	libavformat/mpegenc.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2012-01-03 03:06:45 +01:00
Diego Biurrun
44b0edda3f Drop some pointless void* return value casts from av_malloc() invocations. 2012-01-02 16:41:24 +01:00
Michael Niedermayer
49b909b980 Merge remote-tracking branch 'qatar/master'
* qatar/master:
  fate: split off vqf/twinvq FATE tests into their own file
  fate: split off mpc FATE tests into their own file
  fate: split off libavcodec FATE tests into their own file
  fate: split off Microsoft codec FATE tests into their own file
  fate: group all VP* codec FATE tests together in one file
  swscale: prevent invalid writes in packed_16bpc_bswap

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2011-12-27 01:19:18 +01:00
Janne Grunau
6e9bb5aa3e swscale: prevent invalid writes in packed_16bpc_bswap
Writes past the end of the destination buffer were occuring when its
stride was smaller than the stride of the source. Fixes Bug #183.
2011-12-26 15:50:17 +01:00
Michael Niedermayer
d1c28e3530 Merge remote-tracking branch 'qatar/master'
* qatar/master:
  build: fix standalone compilation of OMA muxer
  build: fix standalone compilation of Microsoft XMV demuxer
  build: fix standalone compilation of Core Audio Format demuxer
  kvmc: fix invalid reads
  4xm: Add a check in decode_i_frame to prevent buffer overreads
  adpcm: fix IMA SMJPEG decoding
  options: set minimum for "threads" to zero
  bsd: use number of logical CPUs as automatic thread count
  windows: use number of CPUs as automatic thread count
  linux: use number of CPUs as automatic thread count
  pthreads: reset active_thread_type when slice thread_init returrns early
  v410dec: include correct headers
  Drop ALT_ prefix from BITSTREAM_READER_LE name.
  lavfi: always build vsrc_buffer.
  ra144enc: zero the reflection coeffs if the filter is unstable
  sws: readd PAL8 to isPacked()
  mov: Don't stick the QuickTime field ordering atom in extradata.
  truespeech: fix invalid reads in truespeech_apply_twopoint_filter()

Conflicts:
	configure
	libavcodec/4xm.c
	libavcodec/avcodec.h
	libavfilter/Makefile
	libavfilter/allfilters.c
	libavformat/Makefile
	libswscale/swscale_internal.h

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2011-12-23 03:25:51 +01:00
Anton Khirnov
131609dc2a sws: readd PAL8 to isPacked()
Fixes PAL8 to YUV conversion.
2011-12-22 11:01:28 +01:00
Michael Niedermayer
0f91a57732 libswscale: increase LIBSWSCALE_VERSION_MICRO to 100
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2011-12-22 03:07:57 +01:00
Michael Niedermayer
0edf7ebcd6 Merge remote-tracking branch 'qatar/master'
* qatar/master:
  h264: clear trailing bits in partially parsed NAL units
  vc1: Handle WVC1 interlaced stream
  xl: Fix overreads
  mpegts: rename payload_index to payload_size
  segment: introduce segmented chain muxer
  lavu: add AVERROR_BUG error value
  avplay: clear pkt_temp when pkt is freed.
  qcelpdec: K&R formatting cosmetics
  qcelpdec: cosmetics: drop some pointless parentheses
  x86: conditionally compile dnxhd encoder optimizations
  Revert "h264: skip start code search if the size of the nal unit is known"
  swscale: fix formatting and indentation of unscaled conversion routines.
  h264: skip start code search if the size of the nal unit is known
  cljr: fix buf_size sanity check
  cljr: Check if width and height are positive integers

Conflicts:
	libavcodec/cljr.c
	libavcodec/vc1dec.c
	libavformat/Makefile
	libavformat/mpegtsenc.c
	libavformat/segment.c
	libswscale/swscale_unscaled.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2011-12-20 04:12:09 +01:00
Michael Niedermayer
32a92d3258 sws: Print an error in case of av_malloc() failure
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2011-12-19 16:02:52 +01:00
Michael Niedermayer
90cad5edf6 swscale: Fix several (real world) integer overflows.
Fixes Ticket795
Bug Found by: Oana Stratulat

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2011-12-19 16:02:51 +01:00
Nathan Adil Maxson
7b3894bee9 swscale: fix formatting and indentation of unscaled conversion routines.
Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
2011-12-18 15:32:08 -08:00
Ronald S. Bultje
d49352c7cc swscale: fix overflows in vertical scaling at top/bottom edges.
This fixes integer multiplication overflows in RGB48 output
(vertical) scaling as detected by IOC. What happens is that for
certain types of filters (lanczos, spline, bicubic), the
intermediate sum of coefficients in the middle of a filter can
be larger than the fixed-point equivalent of 1.0, even if the
final sum is 1.0. This is fine and we support that.

However, at frame edges, initFilter() will merge the coefficients
for the off-screen pixels into the top or bottom pixel, such as
to emulate edge extension. This means that suddenly, a single
coefficient can be larger than the fixed-point equivalent of
1.0, which the vertical scaling routines do not support.

Therefore, remove the merging of coefficients for edges for
the vertical scaling filter, and instead add edge detection
to the scaler itself so that it copies the pointers (not data)
for the edges (i.e. it uses line[0] for line[-1] as well), so
that a single coefficient is never larger than the fixed-point
equivalent of 1.0.
2011-12-18 08:27:43 -08:00
Michael Niedermayer
1bdc212a39 Merge remote-tracking branch 'qatar/master'
* qatar/master:
  build: link test programs with static libraries
  dct-test: remove unused variable cropTbl
  swscale: fix overflow in gray16 vertical scaling.
  get_bits: remove LAST_SKIP_CACHE macro
  swscale: fix integer overflows in RGB pixel writing.
  swscale: add endian conversion for RGB555 and RGB444 pixel formats
  swscale: fix overflows in output of RGB48 pixels.
  get_bits: remove strange/obsolete comments
  get_bits: whitespace (mostly) cosmetics
  swscale: add rgb565 endianess conversion
  get_bits: remove unnecessary #includes
  mp3dec: hack: fix decoding with safe bitstream reader
  fate: fix eatqi test
  adpcm: Check for channels to be a non-zero integer
  swscale: fix overflows in RGB rounding constants.
  get_bits: introduce safe bitreading to prevent overreads.

Conflicts:
	libswscale/swscale.c
	libswscale/swscale_unscaled.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2011-12-18 03:04:44 +01:00