Changing the way the loop is done is necessary to reduce register pressure.
About 20% speedup even on 32 bit x86.
git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@25103 b3059339-0415-0410-9bf9-f77b7e298cf2
Just removing the += s->samples_overlap - s->num_channels; still provides a
ca. 20% speedup on x86 (AThlon X2 64) with gcc 3.4 (compiler stupidity?)
git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@25102 b3059339-0415-0410-9bf9-f77b7e298cf2
Substract the delay caused by filter buffering when calculating
currently playing audio position. This matters for af_scaletempo which
buffers significant and varying amounts of data. For other current
filters the effect is normally insignificant.
Instead of the old time-based filter delay field (which was ignored)
this version stores the per-filter delay in units of bytes input read
without corresponding output. This allows the current scaletempo
behavior where other filters before and after it can see the same
nominal samplerate even though the real duration of the data varies;
in this case the other filters can not know the delay they're causing
in terms of real time.
git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@24928 b3059339-0415-0410-9bf9-f77b7e298cf2
Make internal functions static and remove leading '_' from some
function names. Cast pointers to compatible 8-bit pointer types
instead of ints when calculating their difference.
git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@24927 b3059339-0415-0410-9bf9-f77b7e298cf2
The value of the "speed" suboption was not initialized before calling
subopt_parse(). If the command line had suboptions but "speed" was not
one of them then the code accessed an uninitialized pointer and
possibly crashed. Fixed by initializing the option value.
git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@24926 b3059339-0415-0410-9bf9-f77b7e298cf2
Because of a missing *num_channels factor the filter copied audio from
an incorrect position. This mixed up the channel order and hurt audio
quality even if the channels had identical content.
git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@24925 b3059339-0415-0410-9bf9-f77b7e298cf2
Rewrite decode_audio to better deal with filters that handle input in
large blocks. It now always places output in sh_audio->a_out_buffer
(which was always given as a parameter before) and reallocates the
buffer if needed. After the changes filters can return arbitrarily
large blocks of data without some of it being lost. The new version
also allows simplifying some code.
git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@24920 b3059339-0415-0410-9bf9-f77b7e298cf2
Most of these functions aren't even used in the same translation unit.
git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@24918 b3059339-0415-0410-9bf9-f77b7e298cf2
Remove the mul/cancel/gcd functions and some related code. Use ff_gcd
instead of the removed af_gcd in af_resample.c.
git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@24917 b3059339-0415-0410-9bf9-f77b7e298cf2
Change the audio filters to use a double instead of rationals for the
ratio of output to input size. The rationals could overflow when
calculating the overall ratio of a filter chain and gave no real
advantage compared to doubles.
git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@24916 b3059339-0415-0410-9bf9-f77b7e298cf2
against instead of directly #including the C file and replace the many extern
declarations by a proper header file.
git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@24262 b3059339-0415-0410-9bf9-f77b7e298cf2
af_sinesuppress.c:34: warning: 'play_float' declared 'static' but never defined
git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@24191 b3059339-0415-0410-9bf9-f77b7e298cf2
between common, MPlayer-specific and MEncoder-specific parts.
git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@22546 b3059339-0415-0410-9bf9-f77b7e298cf2
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