Moritz Bunkus [Sun, 5 Aug 2012 14:25:48 +0000 (16:25 +0200)]
matroskadec: Implement support for ALAC
This patch implements support reading ALAC from Matroska files. The
only non-trivial thing about it is that only the ALAC magic cookie is
stored in Matroska's CodecPrivate element but not the "atom size",
"tag" and "tag version" fields that FFMPEG's ALAC decoder
expects. However, those are trivial to re-create.
Sample files are available:
http://www.bunkus.org/videotools/mkvtoolnix/samples/alac/alac-in-matroska.mka
and the CoreAudio file it was created from with today's mkvmerge:
http://www.bunkus.org/videotools/mkvtoolnix/samples/alac/alac-in-matroska-source.caf
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Hendrik Leppkes [Sun, 5 Aug 2012 08:23:50 +0000 (10:23 +0200)]
configure: fix lib.exe check
Running lib.exe without parameters will always result in an error,
and failing the check.
Using the -list paramter results in a success if lib.exe is present.
oggdec: check stream index before using it in ogg_get_length()
Fixes crash based on a uninitialized array index read.
If the read does not crash then out of array writes based
on the same index might have been triggered afterwards.
Found-by: inferno@chromium.org Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
* qatar/master:
lavr: fix handling of custom mix matrices
fate: force pix_fmt in lagarith-rgb32 test
fate: add tests for lagarith lossless video codec.
ARMv6: vp8: fix stack allocation with Apple's assembler
ARM: vp56: allow inline asm to build with clang
fft: 3dnow: fix register name typo in DECL_IMDCT macro
x86: dct32: port to cpuflags
x86: build: replace mmx2 by mmxext
Revert "wmapro: prevent division by zero when sample rate is unspecified"
wmapro: prevent division by zero when sample rate is unspecified
lagarith: fix color plane inversion for YUY2 output.
lagarith: pad RGB buffer by 1 byte.
dsputil: make add_hfyu_left_prediction_sse4() support unaligned src.
Nicolas George [Thu, 26 Jul 2012 17:29:27 +0000 (19:29 +0200)]
ffmpeg: insert bitmap subtitles as video in filters.
With this feature, it becomes possible to perform commonly
requested tasks, such as hardcoding bitmap subtitles.
This will be reverted once libavfilter has proper support
for subtitles. All the changes have the string "sub2video"
in them, it makes it easy to spot the parts.
Nicolas George [Sun, 29 Jul 2012 16:43:45 +0000 (18:43 +0200)]
lavfi: use a new field for automatic buffer copy.
The code currently use cur_buf as the target of the copy,
but cur_buf can be cleared by the filter if it has given
the reference away or stored it elsewhere as soon as start_frame.
The code still relies on the fact that the reference is not
destroyed until end_frame. All filters currently follow that condition.
An av_assert1() is added to check it; it should at least cause
very visible errors in valgrind.
Philip Langdale [Sun, 24 Jun 2012 22:05:33 +0000 (15:05 -0700)]
movenc: Handle need for extra packets to express subtitle duration.
As packet duration is not stored inherently in MPEG4 containers,
subtitles have their duration expressed by storing an additional
empty packet with a pts matching the desired end time of the real
subtitle. Additionally, it is generally expected that all streams
start at time = 0, so an empty packet needs to be inserted at the
beginning of the stream, before the first real subtitle.
Unfortunately, ffmpeg lacks a proper way to express that a subtitle
might map to multiple packets, so the muxer is the only place we
can handle this.
Signed-off-by: Philip Langdale <philipl@overt.org>
Philip Langdale [Wed, 6 Jun 2012 16:12:24 +0000 (09:12 -0700)]
movtextenc: 3GPP TS 26.245 Timed Text Encoder.
This change introduces a basic encoder for 3GPP Timed Text subtitles,
also known as TX3G, Quicktime subtitles, or "movtext" in the existing
code.
This initial change doesn't attempt to write styling information,
and just writes the plain text of the subtitles. I intend to add
support for styles eventually, but it's challenging due to a lack
of existing players that support them.
Note that an additional change is required to the mov/mp4 muxer to
write empty subtitle packets to indicate subtitle duration.
Signed-off-by: Philip Langdale <philipl@overt.org>
fate: Rename FATE_SAMPLES make file variable to FATE_EXTERN
Restore functionality to set the samples directory via the
FATE_SAMPLES environment variable . This is broken since commit 63dcd16 was merged.
Additionally the name FATE_EXTERN is more suited as the current
FATE_SAMPLES make file variable does not carry the name of the
FATE samples or the name of the directory they are stored in, but
does contain the names of the FATE targets that need external
samples. That is samples that are not in the repository and are
not generated on the fly.
Signed-off-by: Alexander Strasser <eclipse7@gmx.net>
Mans Rullgard [Thu, 2 Aug 2012 22:18:08 +0000 (23:18 +0100)]
ARMv6: vp8: fix stack allocation with Apple's assembler
In the GNU assembler, a relational expression, bizarrely, has the
value -1 if true, whereas in Apple's it is +1. This patch makes
sure the correct expression is used in both cases.
Mans Rullgard [Thu, 2 Aug 2012 21:53:47 +0000 (22:53 +0100)]
ARM: vp56: allow inline asm to build with clang
The clang integrated assembler does not support pre-UAL syntax,
while gcc requires pre-UAL syntax for ARM code. A patch[1] for
clang to support the old syntax as well has been ignored since
January.
This patch chooses the syntax appropriate for each compiler,
allowing both to build the code. Notably, this change allows
building for iphone with the latest Apple Xcode update.
* qatar/master:
vc1dec: Remove separate scaling function for interlaced field MVs
vc1dec: Invoke edge_emulation regardless of MV precision
x86: Use consistent 3dnowext function and macro name suffixes
g723_1: scale output as supposed for the case with postfilter disabled
g723_1: increase excitation storage by 4
g723_1: fix upper bound parameter from inverse maximum autocorrelation
g723_1: make scale_vector() behave like the reference
g723_1: fix off-by-one error in normalize_bits()
g723_1: save/restore excitation with offset to store LPC history
wmapro: prevent division by zero when sample rate is unspecified
x86: proresdsp: improve SIGNEXTEND macro comments
x86: h264dsp: K&R formatting cosmetics
LICENSE: Document all GPL files
Diego Biurrun [Sun, 8 Jul 2012 16:42:12 +0000 (18:42 +0200)]
x86: build: replace mmx2 by mmxext
Refactoring mmx2/mmxext YASM code with cpuflags will force renames.
So switching to a consistent naming scheme beforehand is sensible.
The name "mmxext" is more official and widespread and also the name
of the CPU flag, as reported e.g. by the Linux kernel.
For left HFYU prediction, we predict from the buffer buf+1 using 8- or
16-byte reads. This means that aligning the buffer by 16 bytes is in
itself not sufficient, because if the width itself is 16- or 8-byte
aligned, the buffer will not be padded, and thus a read of size 16 at
buf+1 will overflow boundaries at the right edge. Padding the buffer by
1 byte is sufficient to not overflow its boundaries.
dsputil: make add_hfyu_left_prediction_sse4() support unaligned src.
This makes add_hfyu_left_prediction_sse4() handle sources that are not
16-byte aligned in its own function rather than by proxying the call to
add_hfyu_left_prediction_ssse3(). This fixes a crash on Win64, since the
sse4 version clobberes xmm6, but the ssse3 version (which uses MMX regs)
does not restore it, thus leading to XMM clobbering and RSP being off.
vc1dec: Invoke edge_emulation regardless of MV precision
In VC-1 interlaced field pictures, chroma motion vectors can extend beyond
picture boundary even if luma vectors are bounded. The problem shows up
only for hpel interpolated MVs, and may be due to the way motion vectors
are scaled / cropped.
Thanks to Konstantin Shishkov for suggesting the fix. This fixes
long-known segfaults in MC-VC1.ts from videolan streams archive.
Diego Biurrun [Wed, 1 Aug 2012 13:31:43 +0000 (15:31 +0200)]
x86: Use consistent 3dnowext function and macro name suffixes
Currently there is a wild mix of 3dn2/3dnow2/3dnowext. Switching to
"3dnowext", which is a more common name of the CPU flag, as reported
e.g. by the Linux kernel, unifies this.
Kostya Shishkov [Thu, 2 Aug 2012 17:15:51 +0000 (19:15 +0200)]
g723_1: increase excitation storage by 4
Fixed codebook mode in 5300 rate may write up to SUBFRAME_LEN + 4 and
that is considered normal by the reference decoder. Without that additional
padding it might overwrite first elements of LPC history.
Nicolas George [Thu, 2 Aug 2012 17:28:55 +0000 (19:28 +0200)]
amerge/astreamsync/pan: fix license boilerplate.
The boilerplate states that the files are under LGPL,
but refer the user to the GPL at one place.
These files were (re)implemented specifically for FFmpeg.
Some calculations were changed in b6a3849 to use mmsize, which was not correct
for the AVX version, which uses INIT_YMM and therefore has mmsize == 32.
Mans Rullgard [Wed, 1 Aug 2012 13:32:19 +0000 (14:32 +0100)]
dct-test: always link with aandcttab.o
This allows building dct-test even if aandcttab.o is not pulled in
by any enabled codec. The DCT with which these tables are used does
not use them directly, so building it without the tables is possible.
Mans Rullgard [Wed, 1 Aug 2012 13:01:08 +0000 (14:01 +0100)]
vp8: pack struct VP8ThreadData more efficiently
Reordering the members in this struct reduces the holes required
to maintain alignment. With this order, the only remaining, and
unavoidable, hole is 3 bytes following left_nnz.
Mans Rullgard [Wed, 1 Aug 2012 12:16:23 +0000 (13:16 +0100)]
x86: remove libmpeg2 mmx(ext) idct functions
These functions are not faster than other mmx implementations on
any hardware I have been able to test on, and they are horribly
inaccurate. There is thus no reason to ever use them.
projects / ffmpeg / log