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This uses M_SQRT1_2, M_SQRT2 instead of the actual literals. This yields
greater precision in some places in avcodec/ac3, while fixed point
values remain unchanged.
Reviewed-by: Clément Bœsch <u@pkh.me>
Signed-off-by: Ganesh Ajjanagadde <gajjanagadde@gmail.com>
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See e.g https://stackoverflow.com/questions/1666353/are-typedef-and-define-the-same-in-c
for rationale.
Reviewed-by: Michael Niedermayer <michael@niedermayer.cc>
Signed-off-by: Ganesh Ajjanagadde <gajjanagadde@gmail.com>
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Reviewed-by: Hendrik Leppkes <h.leppkes@gmail.com>
Signed-off-by: James Almer <jamrial@gmail.com>
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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
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Added support for AC3 heavy dynamic range compression used
to restrict the output range and added a setting to specify
the output target level and use the dialog normalization
field to apply it in the digital domain.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
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the CONFIG_ prefix is used by configure, using it for other things
is potentially confusing to the reader
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Signed-off-by: Nedeljko Babic <nbabic@mips.com>
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Signed-off-by: Nedeljko Babic <nbabic@mips.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
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This structure is used in the interface between libs and thus cannot have
fields added in the middle without major bump
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
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* commit '9c0e4b3395cad79c560d03d2a94595d89e017885':
ac3: update AC3PreferredStereoDownmixMode.
Merged-by: Michael Niedermayer <michaelni@gmx.at>
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'11b' is reserved in the A/52 specification,
but newer encoders use it to indicate a Dolby
Pro Logic II compatible Lt/Rt downmix.
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* commit 'c229f571fd3c7d7b567c27c87b2bbcdaee1b0e9f':
(e)ac3: parse and store the Lt/Rt and LFE mix levels.
Merged-by: Michael Niedermayer <michaelni@gmx.at>
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* commit '13345fc1f86fc3615789e196d5a339c1c27c9068':
(e)ac3: parse and store the Dolby Surround, Surround EX and Headphone mode flags.
Merged-by: Michael Niedermayer <michaelni@gmx.at>
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flags.
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* qatar/master:
yuv4mpeg: return proper error codes.
Give all anonymously typedeffed structs in headers a name
fate: Add parseutils test
parseutils-test: Drop random colors from parsing test
vf_pad/scale: use double precision for aspect ratios.
build: error on variable-length arrays
ppc: swscale: rework yuv2planeX_altivec()
ppc: fmtconvert: kill VLA in float_to_int16_interleave_altivec()
x86: dsputil: kill VLA in gmc_mmx()
libspeexenc: Updated commentary to reflect recent changes
libspeexenc: Add an option for enabling DTX
doc/APIchanges: fill in missing dates and hashes.
lavr: bump major to 1 and declare it stable.
lavr: change the type of the data buffers to uint8_t**.
lavc: deprecate the audio resampling API.
Conflicts:
cmdutils.h
configure
doc/APIchanges
ffplay.c
libavcodec/dwt.h
libavcodec/libspeexenc.c
libavfilter/vf_pad.c
libavfilter/vf_scale.c
libavformat/asf.h
tests/fate/libavutil.mak
tests/ref/fate/parseutils
Merged-by: Michael Niedermayer <michaelni@gmx.at>
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Anonymous structs cannot be forward declared and have no benefit.
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* qatar/master:
swscale: Readd #define _SVID_SOURCE
Fix av_get_channel_layout_string() for positions >31
configure: Store vda lib flags in extralibs instead of ldflags
Make channel layout masks unsigned
dca: ARMv6 optimised decode_blockcode()
nullenc: drop AVFMT_RAWPICTURE from the flags
frame-mt: return consumed packet size in ff_thread_decode_frame
aacdec: add more fate tests covering SBR and PS
MK(BE)TAG: avoid undefined shifts
Conflicts:
configure
libavcodec/arm/dca.h
libavcodec/dca.c
libavcodec/mlp_parser.c
libavcodec/version.h
libavfilter/asrc_anullsrc.c
libavfilter/avfilter.c
libavfilter/avfilter.h
libavfilter/defaults.c
libavutil/audioconvert.c
libavutil/avutil.h
libswscale/utils.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>
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It makes more sense for a bit mask to use an unsigned type.
The change should be source and binary compatible on all
supported systems, hence micro version bump.
Fixes a few invalid shifts.
Signed-off-by: Mans Rullgard <mans@mansr.com>
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User applications should by now be able to support float encoders.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
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* qatar/master:
ppc: remove redundant setting of Altivec IDCT
mpegvideo: initialise DSPContext in ff_dct_common_init()
cosmetics: reindent
eac3enc: support writing of basic mixing and info metadata
dnxhdenc: fix declarations in for loops
dsputil: remove stale bink prototypes and comments
dsputil: move a bink-only function to binkdsp
dsputil: remove some unused functions
bink: make IDCT take 32-bit input
Merged-by: Michael Niedermayer <michaelni@gmx.at>
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* qatar/master:
ARM: ac3: update ff_ac3_extract_exponents_neon per 8b7b2d6
ARM: NEON optimised vector_clip_int32()
swscale: disable full_chroma_int when converting to non-24/32bpp RGB.
suggest to use av_get_bytes_per_sample() in av_get_bits_per_sample_format() doxy
ffmpeg: use av_get_bytes_per_sample() in place of av_get_bits_per_sample_fmt()
put_bits: remove ALT_BITSTREAM_WRITER
put_bits: always use intreadwrite.h macros
libavformat: Add an example how to use the metadata API
doxygen: Prefer member groups over grouping into modules
doxygen: be more permissive when searching for API examples
avformat: doxify the Metadata API
lavf: restore old behavior for custom AVIOContex with an AVFMT_NOFILE format.
lavf: use the correct pointer in av_open_input_stream().
avidec: infer absolute vs relative index from first packet
Conflicts:
libavformat/Makefile
libavformat/avidec.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>
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Before this, almost all module groups have been used for grouping functions
and fields in structures semantically. This causes them to not appear
properly in the file documentation and needlessly clutters up the "Modules"
index.
Additionally, this commit streamlines some spelling and appearances.
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* qatar/master: (28 commits)
Remove some non-compiling debug messages.
ffplay: Fix non-compiling debug printf and replace it by av_dlog.
H264: x86 predict init cosmetics.
ac3enc: Fix linking of AC-3 encoder without the E-AC-3 encoder.
Move E-AC-3 encoder functions to a separate eac3enc.c file.
ac3enc: remove convenience macro, #define DEBUG
ac3enc: remove unused #define
vc1: re-initialize tables after width/height change.
APIchanges: fill-in git commit hash for av_get_bytes_per_sample() addition
samplefmt: add av_get_bytes_per_sample()
iirfilter: fix biquad filter coefficients.
swscale: remove duplicate conversion routine in swScale().
swscale: add yuv2planar/packed function typedefs.
swscale: integrate yuv2nv12X_C into yuv2yuvX() function pointers.
swscale: reindent x86 init code.
swscale: extract SWS_FULL_CHR_H_INT conditional into init code.
swscale: cosmetics.
swscale: remove alp/chr/lumSrcOffset.
swscale: un-special-case yuv2yuvX16_c().
shorten: Remove stray DEBUG #define and corresponding av_dlog statement.
...
Conflicts:
doc/APIchanges
libavcodec/ac3enc.c
libavutil/avutil.h
libavutil/samplefmt.c
libswscale/swscale.c
libswscale/swscale_internal.h
libswscale/x86/swscale_template.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>
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* 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>
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Channel coupling is an optional AC-3 feature that increases quality by
combining high frequency information from multiple channels into a
single channel. The per-channel high frequency information is sent with
less accuracy in both the frequency and time domains. This allows more
bits to be used for lower frequencies while preserving enough
information to reconstruct the high frequencies.
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* qatar/master:
ALPHA: Replace sized int_fast integer types with plain int/unsigned.
Duplicate DPX image encoder
Duplicate DPX decoder: read sample aspect ratio
Duplciate DPX decoder: add buffer size checks.
ac3enc: clip large coefficient values and negative exponents rather than using av_assert2().
ac3enc: do not store a bandwidth code for each channel.
ac3enc: remove bandwidth reduction as fallback for bit allocation failure.
ac3enc: merge compute_exp_strategy_ch() into compute_exp_strategy()
ac3enc: return error if frame+exponent bits are too large instead of using av_assert2().
ac3enc: differentiate between current block and reference block in bit_alloc()
ac3enc: simplify exponent_init() by calculating exponent_group_tab[] based on exponent group sizes.
ac3enc: simplify stereo rematrixing decision options
Include both URLs: Update URL to fate samples
Conflicts:
Changelog
doc/fate.txt
libavcodec/ac3enc.c
libavcodec/dpxenc.c
libavcodec/version.h
Merged-by: Michael Niedermayer <michaelni@gmx.at>
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There is no need to have 2 encoders, the input sample format can,does and should choose which is used
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
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* newdev/master:
ac3enc: move compute_mantissa_size() to ac3dsp
ac3enc: move mant*_cnt and qmant*_ptr out of AC3EncodeContext
Remove support for stripping executables
ac3enc: NEON optimised float_to_fixed24
ac3: move ff_ac3_bit_alloc_calc_bap to ac3dsp
dfa: protect pointer range checks against overflows.
Duplicate: mimic: implement multithreading.
Merged-by: Michael Niedermayer <michaelni@gmx.at>
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Signed-off-by: Mans Rullgard <mans@mansr.com>
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* newdev/master:
ac3enc: Add codec-specific options for writing AC-3 metadata.
NOT MERGED: Remove arrozcru URL from documentation
sndio support for playback and record
Conflicts:
doc/faq.texi
doc/general.texi
Merged-by: Michael Niedermayer <michaelni@gmx.at>
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* newdev/master:
mov: set audio service type for AC-3 from bitstream mode in the 'dac3' atom.
Get audio_service_type for AC-3 based on bitstream mode in the AC-3 parser and decoder, and vice-versa for the AC-3 encoder.
Use audio_service_type to set stream disposition.
Add APIchanges entry for audio_service_type.
Add audio_service_type field to AVCodecContext for encoding and reporting of the service type in the audio bitstream.
configure: in check_ld, place new -l flags before existing ones
support @heading, @subheading, @subsubheading, and @subsubsection in texi2pod.pl
doc: update build system documentation
aacenc: indentation
aacenc: fix the side calculation in search_for_ms
vp8.c: rename EDGE_* to VP8_EDGE_*.
Conflicts:
doc/APIchanges
libavcodec/avcodec.h
libavcodec/version.h
libavcodec/vp8.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>
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and decoder, and vice-versa for the AC-3 encoder.
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Signed-off-by: Mans Rullgard <mans@mansr.com>
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(cherry picked from commit b35743ffb46558be3a90c44f24a7de5fa2c15d85)
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Signed-off-by: Mans Rullgard <mans@mansr.com>
(cherry picked from commit 4c57cde942b3d28074d0bb06e2ca200bc1098f22)
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Signed-off-by: Mans Rullgard <mans@mansr.com>
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Signed-off-by: Mans Rullgard <mans@mansr.com>
(cherry picked from commit 362bfe29971b3bb8497d2b341337697be15a257c)
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Signed-off-by: Mans Rullgard <mans@mansr.com>
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Originally committed as revision 25969 to svn://svn.ffmpeg.org/ffmpeg/trunk
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Originally committed as revision 25967 to svn://svn.ffmpeg.org/ffmpeg/trunk
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Originally committed as revision 25951 to svn://svn.ffmpeg.org/ffmpeg/trunk
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Originally committed as revision 25950 to svn://svn.ffmpeg.org/ffmpeg/trunk
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Originally committed as revision 23904 to svn://svn.ffmpeg.org/ffmpeg/trunk
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Passing an explicit filename to this command is only necessary if the
documentation in the @file block refers to a file different from the
one the block resides in.
Originally committed as revision 22921 to svn://svn.ffmpeg.org/ffmpeg/trunk
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improve plain text doxy readability.
See the thread: "[RFC] Should we use doxygen markup?".
Originally committed as revision 19122 to svn://svn.ffmpeg.org/ffmpeg/trunk
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Originally committed as revision 18622 to svn://svn.ffmpeg.org/ffmpeg/trunk
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Otherwise doxygen complains about ambiguous filenames when files exist
under the same name in different subdirectories.
Originally committed as revision 16912 to svn://svn.ffmpeg.org/ffmpeg/trunk
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Originally committed as revision 16684 to svn://svn.ffmpeg.org/ffmpeg/trunk
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