* qatar/master:
Partially merged:flvdec: Allow parsing keyframes metadata without seeking in most cases
Error out if vaapi is not found
avio: undeprecate av_url_read_fseek/fpause under nicer names
libvo-*: Don't use deprecated sample format names and enum names
DUPLICATE flvdec: Fix support for flvtool2 "keyframes based" generated index
DUPLICATE libavcodec: Use "const enum AVSampleFormat[]" in AVCodec initialization
Fix the conversion of AV_SAMPLE_FMT_FLT and _DBL to AV_SAMPLE_FMT_S32.
Convert some undefined 1<<31 shifts into 1U<<31.
Conflicts:
configure
libavcodec/libvo-aacenc.c
libavcodec/libvo-amrwbenc.c
libavformat/flvdec.c
Marged-by: Michael Niedermayer <michaelni@gmx.at>
According to ISO 9899:1999 S 6.5.7/4:
The result of E1 << E2 is E1 left-shifted E2 bit positions; vacated bits
are filled with zeros. If E1 has an unsigned type, the value of the
result is E1× 2^E2, reduced modulo one more than the maximum value
representable in the result type. If E1 has a signed type and
nonnegative value, and E1× 2^E2 is representable in the result type, then
that is the resulting value; otherwise, the behavior is undefined.
via the equivalent AVCodecContext::crf modifying the range allowed by
options.c (0-51 -> 0-63)
update configure check to require libvpx 0.9.6 (Bali)
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
* qatar/master:
Not pulled due to wrong author, according to carl: Add unconditional return statement to yuva420_rgb32_MMX() / yuva420_bgr32_MMX().
Fix compilation of timefilter test program.
Add support for AMR-WB encoding via libvo-amrwbenc
Add an AAC encoder by using the libvo-aacenc library
g722: Return 8 bits per sample for g722 in av_get_bits_per_sample
Conflicts:
Changelog
Merged-by: Michael Niedermayer <michaelni@gmx.at>
Call this new function before decode() to replace the custom and
inconsistant initialization in various decoders.
This function is equivalent to avcodec_get_frame_defaults() for AVFrame.
Signed-off-by: Aurelien Jacobs <aurel@gnuage.org>
This fixes a failing assert in ff_raw_read_header (in
fate-g722dec-1), where bits_per_coded_sample is set using this
function and is required to have a positive value.
Signed-off-by: Martin Storsjö <martin@martin.st>
* qatar/master:
avio: add more documentation for AVIOContext.
Parse sprite data for WMVP and WVP2, and decode sprites for the latter
Replace outdated info on the FAQ
Redefine sameq
pad: fix example explanation
gradfun: add notice from the MPlayer manual
eval: add support for trunc, ceil, and floor functions
documentation: add setdar and setsar description to filters.texi
avio: document some members of AVIOContext.
avio: document avio_close().
avio: cosmetics, vertically align comments.
avio: cosmetics, group the reading functions.
avio: cosmetics, merge all the FF_API_OLD_AVIO blocks.
avio: cosmetics, move AVIOContext to start of the file.
avio: update file header.
os: fix OpenBSD/PowerPC compilation
pixfmt: add PIX_FMT_BGR48LE and PIX_FMT_BGR48BE
oggdec: fix demuxing chained audio streams
fix typo
Conflicts:
doc/filters.texi
libavformat/avio.h
libavutil/pixfmt.h
Merged-by: Michael Niedermayer <michaelni@gmx.at>
This patch lets e.g. dsputil_init chose dsp functions with respect to
the bit depth to decode. The naming scheme of bit depth dependent
functions is <base name>_<bit depth>[_<prefix>] (i.e. the old
clear_blocks_c is now named clear_blocks_8_c).
Note: Some of the functions for high bit depth is not dependent on the
bit depth, but only on the pixel size. This leaves some room for
optimizing binary size.
Preparatory patch for high bit depth h264 decoding support.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
In high bit depth, the QP values may now be up to (51 + 6*(bit_depth-8)).
Preparatory patch for high bit depth h264 decoding support.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
In high bit depth the pixels will not be stored in uint8_t like in the
normal case, but in uint16_t. The pixel size is thus 1 in normal bit
depth and 2 in high bit depth.
Preparatory patch for high bit depth h264 decoding support.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
The functions moved are used when decoding h264.
Preparatory patch for high bit depth h264 decoding support.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Unfortunately the output buffer size check assumes that the
input buffer is never over-consumed, thus this actually
also allowed to write outside the output buffer if "lucky".
AS libavcodec/arm/ac3dsp_armv6.o
ffmpeg-src/libavcodec/arm/ac3dsp_armv6.S: Assembler messages:
ffmpeg-src/libavcodec/arm/ac3dsp_armv6.S:40: Error: selected processor
does not support `movw r8,#0x1fe0'
make[1]: *** [libavcodec/arm/ac3dsp_armv6.o] Error 1
MOVW is ARMv7 way to load constant:
* movw, or move wide, will move a 16-bit constant into a register,
implicitly zeroing the top 16 bits of the target register.
* movt, or move top, will move a 16-bit constant into the top half
of a given register without altering the bottom 16 bits
To load 32 bit constant, movw lower16; movt upper16; is better than
ldr if available, because:
While this approach takes two instructions, it does not require any
extra space to store the constant so both the movw/movt method and the
ldr method will end up using the same amount of memory. Memory
bandwidth is precious in and the movw/movt approach avoids an extra
read on the data side, not to mention the read could have missed the
cache.
But here it is armv6 optimization, so that we have to use ldr.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
The thread_type API allows you to request only FF_THREAD_FRAME (instead of
FRAME | SLICE), but it was being ignored.
We don't implement both of them at the same time, so there isn't an effect
on current codecs, except that you can request no kinds of threading now
(a bit useless).
Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
As previously discussed, the CrystalHD hardware returns exceptionally
useless information about interlaced h.264 content - to the extent
that it's not possible to distinguish most MBAFF and PAFF content until
it's too late.
In an attempt to compensate for this, I'm introducing two mechanisms:
1) Peeking at the picture number of the next picture
The hardware provides a capability to peek the next picture number. If
it is the same as the current picture number, then we are clearly dealing
with two fields and not a frame or fieldpair.
If this always worked, it would be all we need, but it's not guaranteed
to work. Sometimes, the next picture may not be decoded sufficiently
for the number to be known; alternately, a corruption in the stream may
cause the hardware to refuse to return the number even if the next
intact frame is decoded. In either case, the query will return 0.
If we are unable to peek the next picture number, we assume that the
picture is a frame/fieldpair and return it accordingly. If that turns
out to be incorrect, we discard the second field, and the user has
to live with the glitch. In testing, false detection can occur for
the first couple of seconds, and then the pipeline stabalizes and
we get correct detection.
2) Use the h264_parser to detect when individual input fields have
been combined into an output fieldpair.
I have multiple PAFF samples where this behaviour is detected. The
peeking mechanism described above will correctly detect that the
output is a fieldpair, but we need to know what the input type was
to ensure pipeline stability (only return one output frame per input
frame).
If we find ourselves with an output fieldpair, yet the input picture
type was a field, as reported by the parser, then we are dealing with
this case, and can make sure not to return anything on the next
decode() call.
Taken together, these allow us to remove the hard-coded hacks for
different h.264 types, and we can clearly describe the conditions
under which we can trust the hardware's claim that content is
interlaced.
Signed-off-by: Philip Langdale <philipl@overt.org>
Michael Niedermayer
Reimar Döffinger
Carl Eugen Hoyos
Martin Storsjö
Alex Converse
James Zern
Aurelien Jacobs
Oskar Arvidsson
Alberto Delmás
pin xue
Alexander Strange
Gwenole Beauchesne
Philip Langdale