| Age | Commit message (Collapse) | Author |
|---|
|
|
|
and use in scale_coefficients() for the floating-point AC-3 encoder.
|
|
Correct bad indentation in aaccoder
Clarify and correct comments in 3GPP psymodel, other cosmetics.
|
|
3GPP:
Remove ffac from and move min_snr out of AacPsyBand.
Rearrange AacPsyCoeffs to make it easier to implement energy spreading.
Rename the band[] array to bands[]
Copy energies and thresholds at the end of analysis.
LAME:
Use a loop instead of an if chain in LAME windowing.
|
|
Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
|
|
Signed-off-by: Mans Rullgard <mans@mansr.com>
|
|
There are several places where a buffer is byte-swapped in 16-bit units.
This allows them to share code which can be optimised for various
architectures.
Signed-off-by: Mans Rullgard <mans@mansr.com>
|
|
|
|
also update the multiple inclusion guards in config.h|mak
|
|
If the function is not inlined, an immmediate cannot be used for the
shift parameter, so the %cl register must be used instead in that case.
This fixes compilation for x86-32 using gcc with --disable-optimizations.
|
|
The 1-arg imul instruction cannot take an immediate argument, only a register
or memory argument.
|
|
This fixes unexpected name collisions that were occurring with variables
declared within the macros.
It also fixes the fate-acodec-ac3_fixed regression test on x86-32.
|
|
Signed-off-by: Philip Langdale <philipl@overt.org>
Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
|
|
AC3 encoder.
|
|
This increases the accuracy of coefficients, leading to improved quality.
Rescaling of the coefficients to full 25-bit accuracy is done rather than
offsetting the exponent values. This requires coefficient scaling to be done
before determining the rematrixing strategy. Also, the rematrixing strategy
calculation must use 64-bit math to prevent overflow due to the higher
precision coefficients.
|
|
This permits playback in ffplay when libavfilter is enabled.
Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
|
|
Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
|
|
Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
|
|
Was missed in 3efbe137.
|
|
Signed-off-by: Mans Rullgard <mans@mansr.com>
|
|
Shaves at least 3KB off code size on x86, should improve cache utilization.
This would probably be useful to do for other decoders/encoders as well.
|
|
|
|
prob[0] is the only prob array ever accessed, so prob[1] can serve as padding
for prob[0].
|
|
A break statement was supposed to break out of two loops, but only broke out of one.
Didn't affect output, just could have been marginally slower.
|
|
Signed-off-by: Mans Rullgard <mans@mansr.com>
|
|
Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
|
|
This reverts the removal of scoefs from AACEncContext.
It resulted in scoefs being a NULL pointer when
search_for_quantizers() is called.
Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
|
|
|
|
Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
|
|
When decoding latm config, use the corresponding aac context and its
m4ac instead of using NULL and a local variable. This fixes decoding of
audio in MPEG TS from SBTVD (the Brazillian Digital TV Sytem), when
there is no extradata. This is the case when using the decoder with
gst-ffmpeg and a GStreamer mpegts demuxer.
Signed-off-by: Thadeu Lima de Souza Cascardo <cascardo@holoscopio.com>
Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
|
|
|
|
|
|
It only has Altivec functions and is not compiled if Altivec is disabled.
|
|
|
|
Should an AVC-1 in MP4 stream not contain SPS or PPS NAL units,
this BSF is then unable to allocate an output buffer for the
modified stream. Warn that the resulting stream may be unplayable.
Fix roundup issue #2386.
Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
|
|
the hardcoded value.
Currently it is always 4, but this change will allow it to be adjusted when
bandwidth-related features are added such as channel coupling, enhanced
channel coupling, and spectral extension.
|
|
|
|
|
|
This moves setting the thread count to a minimum of 1 to
frame_thread_init(), allowing a value of zero to propagate
through to the codec if frame threading is not used. This
makes auto-threads work in libx264.
Signed-off-by: Mans Rullgard <mans@mansr.com>
|
|
Signed-off-by: Mans Rullgard <mans@mansr.com>
|
|
Signed-off-by: Mans Rullgard <mans@mansr.com>
|
|
Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
|
|
For intra codecs, ff_thread_finish_setup() is called before decoding starts
automatically. However, get_buffer can only be used before it's called, so
adding this requirement broke frame threading for them. Fixed by moving the
call until after get_buffer is finished.
Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
|
|
Signed-off-by: Mans Rullgard <mans@mansr.com>
|
|
The assembler emits literal pools too far from the load instructions,
so we must do it explicitly at a suitable location.
Signed-off-by: Mans Rullgard <mans@mansr.com>
|
|
Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
|
|
Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
|
|
Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
|
|
decode_init sets bands[0] == 2, so this loop always sets the band table
index (k) to zero.
Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
|
|
Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
|
