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[MPG123] Update to version 1.26.1. CORE-17098
This commit is contained in:
Thomas Faber
parent
cab7e9ade8
commit
aa811c00e3
27 changed files with 2163 additions and 710 deletions
345
sdk/lib/3rdparty/libmpg123/format.c
vendored
345
sdk/lib/3rdparty/libmpg123/format.c
vendored
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@ -1,7 +1,7 @@
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/*
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format:routines to deal with audio (output) format
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format: routines to deal with audio (output) format
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copyright 2008-14 by the mpg123 project - free software under the terms of the LGPL 2.1
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copyright 2008-20 by the mpg123 project - free software under the terms of the LGPL 2.1
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see COPYING and AUTHORS files in distribution or http://mpg123.org
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initially written by Thomas Orgis, starting with parts of the old audio.c, with only faintly manage to show now
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@ -26,6 +26,7 @@
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*/
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#include "mpg123lib_intern.h"
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#include "sample.h"
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#include "debug.h"
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/* static int chans[NUM_CHANNELS] = { 1 , 2 }; */
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@ -60,6 +61,10 @@ static const int my_encodings[MPG123_ENCODINGS] =
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static const int enc_float_range[2] = { 6, 8 };
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/* same for 8 bit encodings */
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static const int enc_8bit_range[2] = { 8, 12 };
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// for 24 bit quality (24 and 32 bit integers)
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static const int enc_24bit_range[2] = { 2, 6 };
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// for completeness, the 16 bits
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static const int enc_16bit_range[2] = { 0, 2};
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/*
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Only one type of float is supported.
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@ -150,14 +155,14 @@ static int enc2num(int encoding)
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return -1;
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}
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static int cap_fit(mpg123_handle *fr, struct audioformat *nf, int f0, int f2)
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static int cap_fit(mpg123_pars *p, struct audioformat *nf, int f0, int f2)
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{
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int i;
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int c = nf->channels-1;
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int rn = rate2num(&fr->p, nf->rate);
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int rn = rate2num(p, nf->rate);
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if(rn >= 0) for(i=f0;i<f2;i++)
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{
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if(fr->p.audio_caps[c][rn][i])
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if(p->audio_caps[c][rn][i])
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{
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nf->encoding = my_encodings[i];
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return 1;
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@ -166,48 +171,54 @@ static int cap_fit(mpg123_handle *fr, struct audioformat *nf, int f0, int f2)
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return 0;
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}
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static int freq_fit(mpg123_handle *fr, struct audioformat *nf, int f0, int f2)
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static int imin(int a, int b)
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{
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nf->rate = frame_freq(fr)>>fr->p.down_sample;
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if(cap_fit(fr,nf,f0,f2)) return 1;
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if(fr->p.flags & MPG123_AUTO_RESAMPLE)
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{
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nf->rate>>=1;
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if(cap_fit(fr,nf,f0,f2)) return 1;
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nf->rate>>=1;
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if(cap_fit(fr,nf,f0,f2)) return 1;
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}
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#ifndef NO_NTOM
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/* If nothing worked, try the other rates, only without constrains from user.
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In case you didn't guess: We enable flexible resampling if we find a working rate. */
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if( fr->p.flags & MPG123_AUTO_RESAMPLE &&
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!fr->p.force_rate && fr->p.down_sample == 0)
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{
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int i;
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int c = nf->channels-1;
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int rn = rate2num(&fr->p, frame_freq(fr));
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int rrn;
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if(rn < 0) return 0;
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/* Try higher rates first. */
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for(i=f0;i<f2;i++) for(rrn=rn+1; rrn<MPG123_RATES; ++rrn)
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if(fr->p.audio_caps[c][rrn][i])
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{
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nf->rate = my_rates[rrn];
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nf->encoding = my_encodings[i];
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return 1;
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}
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/* Then lower rates. */
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for(i=f0;i<f2;i++) for(rrn=rn-1; rrn>=0; --rrn)
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if(fr->p.audio_caps[c][rrn][i])
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{
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nf->rate = my_rates[rrn];
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nf->encoding = my_encodings[i];
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return 1;
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}
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}
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#endif
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return a < b ? a : b;
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}
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return 0;
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static int imax(int a, int b)
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{
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return a > b ? a : b;
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}
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// Find a possible encoding with given rate and channel count,
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// try differing channel count, too.
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// This updates the given format and returns TRUE if an encoding
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// was found.
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static int enc_chan_fit( mpg123_pars *p, long rate, struct audioformat *nnf
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, int f0, int f2, int try_float )
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{
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#define ENCRANGE(range) imax(f0, range[0]), imin(f2, range[1])
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struct audioformat nf = *nnf;
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nf.rate = rate;
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if(cap_fit(p, &nf, ENCRANGE(enc_16bit_range)))
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goto eend;
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if(cap_fit(p, &nf, ENCRANGE(enc_24bit_range)))
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goto eend;
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if(try_float &&
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cap_fit(p, &nf, ENCRANGE(enc_float_range)))
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goto eend;
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if(cap_fit(p, &nf, ENCRANGE(enc_8bit_range)))
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goto eend;
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/* try again with different stereoness */
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if(nf.channels == 2 && !(p->flags & MPG123_FORCE_STEREO)) nf.channels = 1;
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else if(nf.channels == 1 && !(p->flags & MPG123_FORCE_MONO)) nf.channels = 2;
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if(cap_fit(p, &nf, ENCRANGE(enc_16bit_range)))
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goto eend;
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if(cap_fit(p, &nf, ENCRANGE(enc_24bit_range)))
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goto eend;
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if(try_float &&
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cap_fit(p, &nf, ENCRANGE(enc_float_range)))
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goto eend;
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if(cap_fit(p, &nf, ENCRANGE(enc_8bit_range)))
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goto eend;
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return FALSE;
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eend:
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*nnf = nf;
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return TRUE;
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#undef ENCRANGE
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}
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/* match constraints against supported audio formats, store possible setup in frame
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@ -216,12 +227,17 @@ int frame_output_format(mpg123_handle *fr)
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{
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struct audioformat nf;
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int f0=0;
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int f2=MPG123_ENCODINGS; /* Omit the 32bit and float encodings. */
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int f2=MPG123_ENCODINGS+1; // Include all encodings by default.
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mpg123_pars *p = &fr->p;
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int try_float = (p->flags & MPG123_FLOAT_FALLBACK) ? 0 : 1;
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/* initialize new format, encoding comes later */
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nf.channels = fr->stereo;
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/* All this forcing should be removed in favour of the capabilities table... */
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// I intended the forcing stuff to be weaved into the format support table,
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// but this probably will never happen, as this would change library behaviour.
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// One could introduce an additional effective format table that takes for
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// forcings into account, but that would have to be updated on any flag
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// change. Tedious.
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if(p->flags & MPG123_FORCE_8BIT)
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{
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f0 = enc_8bit_range[0];
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@ -229,6 +245,7 @@ int frame_output_format(mpg123_handle *fr)
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}
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if(p->flags & MPG123_FORCE_FLOAT)
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{
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try_float = 1;
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f0 = enc_float_range[0];
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f2 = enc_float_range[1];
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}
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@ -237,52 +254,105 @@ int frame_output_format(mpg123_handle *fr)
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if(p->flags & MPG123_FORCE_MONO) nf.channels = 1;
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if(p->flags & MPG123_FORCE_STEREO) nf.channels = 2;
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// Strategy update: Avoid too early triggering of the NtoM decoder.
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// Main target is the native rate, with any encoding.
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// Then, native rate with any channel count and any encoding.
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// Then, it's down_sample from native rate.
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// As last resort: NtoM rate.
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// So the priority is 1. rate 2. channels 3. encoding.
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// As encodings go, 16 bit is tranditionally preferred as efficient choice.
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// Next in line are wider float and integer encodings, then 8 bit as
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// last resort.
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#ifndef NO_NTOM
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if(p->force_rate)
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{
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nf.rate = p->force_rate;
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if(cap_fit(fr,&nf,f0,2)) goto end; /* 16bit encodings */
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if(cap_fit(fr,&nf,f0<=2 ? 2 : f0,f2)) goto end; /* 8bit encodings */
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if(enc_chan_fit(p, p->force_rate, &nf, f0, f2, try_float))
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goto end;
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// Keep the order consistent if float is considered fallback only.
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if(!try_float &&
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enc_chan_fit(p, p->force_rate, &nf, f0, f2, TRUE))
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goto end;
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/* try again with different stereoness */
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if(nf.channels == 2 && !(p->flags & MPG123_FORCE_STEREO)) nf.channels = 1;
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else if(nf.channels == 1 && !(p->flags & MPG123_FORCE_MONO)) nf.channels = 2;
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if(cap_fit(fr,&nf,f0,2)) goto end; /* 16bit encodings */
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if(cap_fit(fr,&nf,f0<=2 ? 2 : f0,f2)) goto end; /* 8bit encodings */
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if(NOQUIET)
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error3( "Unable to set up output format! Constraints: %s%s%liHz.",
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( p->flags & MPG123_FORCE_STEREO ? "stereo, " :
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(p->flags & MPG123_FORCE_MONO ? "mono, " : "") ),
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(p->flags & MPG123_FORCE_8BIT ? "8bit, " : ""),
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p->force_rate );
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merror( "Unable to set up output format! Constraints: %s%s%liHz."
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, ( p->flags & MPG123_FORCE_STEREO ? "stereo, " :
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(p->flags & MPG123_FORCE_MONO ? "mono, " : "") )
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, ( p->flags & MPG123_FORCE_FLOAT ? "float, " :
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(p->flags & MPG123_FORCE_8BIT ? "8bit, " : "") )
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, p->force_rate );
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/* if(NOQUIET && p->verbose <= 1) print_capabilities(fr); */
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fr->err = MPG123_BAD_OUTFORMAT;
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return -1;
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}
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#endif
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if(freq_fit(fr, &nf, f0, 2)) goto end; /* try rates with 16bit */
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if(freq_fit(fr, &nf, f0<=2 ? 2 : f0, f2)) goto end; /* ... 8bit */
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/* try again with different stereoness */
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if(nf.channels == 2 && !(p->flags & MPG123_FORCE_STEREO)) nf.channels = 1;
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else if(nf.channels == 1 && !(p->flags & MPG123_FORCE_MONO)) nf.channels = 2;
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if(freq_fit(fr, &nf, f0, 2)) goto end; /* try rates with 16bit */
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if(freq_fit(fr, &nf, f0<=2 ? 2 : f0, f2)) goto end; /* ... 8bit */
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// Native decoder rate first.
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if(enc_chan_fit(p, frame_freq(fr)>>p->down_sample, &nf, f0, f2, try_float))
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goto end;
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// Then downsamplings.
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if(p->flags & MPG123_AUTO_RESAMPLE && p->down_sample < 2)
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{
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if(enc_chan_fit( p, frame_freq(fr)>>(p->down_sample+1), &nf
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, f0, f2, try_float ))
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goto end;
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if(p->down_sample < 1 && enc_chan_fit( p, frame_freq(fr)>>2, &nf
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, f0, f2, try_float ))
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goto end;
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}
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// And again the whole deal with float fallback.
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if(!try_float)
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{
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if(enc_chan_fit(p, frame_freq(fr)>>p->down_sample, &nf, f0, f2, TRUE))
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goto end;
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// Then downsamplings.
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if(p->flags & MPG123_AUTO_RESAMPLE && p->down_sample < 2)
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{
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if(enc_chan_fit( p, frame_freq(fr)>>(p->down_sample+1), &nf
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, f0, f2, TRUE ))
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goto end;
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if(p->down_sample < 1 && enc_chan_fit( p, frame_freq(fr)>>2, &nf
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, f0, f2, TRUE ))
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goto end;
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}
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}
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#ifndef NO_NTOM
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// Try to find any rate that works and resample using NtoM hackery.
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if( p->flags & MPG123_AUTO_RESAMPLE && fr->p.down_sample == 0)
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{
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int i;
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int rn = rate2num(p, frame_freq(fr));
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int rrn;
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if(rn < 0) return 0;
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/* Try higher rates first. */
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for(rrn=rn+1; rrn<MPG123_RATES; ++rrn)
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if(enc_chan_fit(p, my_rates[rrn], &nf, f0, f2, try_float))
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goto end;
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/* Then lower rates. */
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for(i=f0;i<f2;i++) for(rrn=rn-1; rrn>=0; --rrn)
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if(enc_chan_fit(p, my_rates[rrn], &nf, f0, f2, try_float))
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goto end;
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// And again for float fallback.
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if(!try_float)
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{
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/* Try higher rates first. */
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for(rrn=rn+1; rrn<MPG123_RATES; ++rrn)
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if(enc_chan_fit(p, my_rates[rrn], &nf, f0, f2, TRUE))
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goto end;
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/* Then lower rates. */
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for(i=f0;i<f2;i++) for(rrn=rn-1; rrn>=0; --rrn)
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if(enc_chan_fit(p, my_rates[rrn], &nf, f0, f2, TRUE))
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goto end;
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}
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}
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#endif
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/* Here is the _bad_ end. */
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if(NOQUIET)
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{
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error5( "Unable to set up output format! Constraints: %s%s%li, %li or %liHz.",
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( p->flags & MPG123_FORCE_STEREO ? "stereo, " :
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(p->flags & MPG123_FORCE_MONO ? "mono, " : "") ),
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(p->flags & MPG123_FORCE_8BIT ? "8bit, " : ""),
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frame_freq(fr), frame_freq(fr)>>1, frame_freq(fr)>>2 );
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}
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merror( "Unable to set up output format! Constraints: %s%s%li, %li or %liHz."
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, ( p->flags & MPG123_FORCE_STEREO ? "stereo, " :
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(p->flags & MPG123_FORCE_MONO ? "mono, " : "") )
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, ( p->flags & MPG123_FORCE_FLOAT ? "float, " :
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(p->flags & MPG123_FORCE_8BIT ? "8bit, " : "") )
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, frame_freq(fr), frame_freq(fr)>>1, frame_freq(fr)>>2 );
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/* if(NOQUIET && p->verbose <= 1) print_capabilities(fr); */
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fr->err = MPG123_BAD_OUTFORMAT;
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@ -305,7 +375,7 @@ end: /* Here is the _good_ end. */
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fr->af.encsize = mpg123_encsize(fr->af.encoding);
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if(fr->af.encsize < 1)
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{
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if(NOQUIET) error1("Some unknown encoding??? (%i)", fr->af.encoding);
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error1("Some unknown encoding??? (%i)", fr->af.encoding);
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fr->err = MPG123_BAD_OUTFORMAT;
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return -1;
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@ -391,6 +461,17 @@ int attribute_align_arg mpg123_fmt_all(mpg123_pars *mp)
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return MPG123_OK;
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}
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int attribute_align_arg mpg123_format2(mpg123_handle *mh, long rate, int channels, int encodings)
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{
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int r;
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if(mh == NULL) return MPG123_BAD_HANDLE;
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r = mpg123_fmt2(&mh->p, rate, channels, encodings);
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if(r != MPG123_OK){ mh->err = r; r = MPG123_ERR; }
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return r;
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}
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// Keep old behaviour.
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int attribute_align_arg mpg123_format(mpg123_handle *mh, long rate, int channels, int encodings)
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{
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int r;
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@ -401,9 +482,9 @@ int attribute_align_arg mpg123_format(mpg123_handle *mh, long rate, int channels
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return r;
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}
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int attribute_align_arg mpg123_fmt(mpg123_pars *mp, long rate, int channels, int encodings)
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int attribute_align_arg mpg123_fmt2(mpg123_pars *mp, long rate, int channels, int encodings)
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{
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int ie, ic, ratei;
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int ie, ic, ratei, r1, r2;
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int ch[2] = {0, 1};
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if(mp == NULL) return MPG123_BAD_PARS;
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if(!(channels & (MPG123_MONO|MPG123_STEREO))) return MPG123_BAD_CHANNEL;
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|
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@ -412,10 +493,21 @@ int attribute_align_arg mpg123_fmt(mpg123_pars *mp, long rate, int channels, int
|
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if(!(channels & MPG123_STEREO)) ch[1] = 0; /* {0,0} */
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else if(!(channels & MPG123_MONO)) ch[0] = 1; /* {1,1} */
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ratei = rate2num(mp, rate);
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if(ratei < 0) return MPG123_BAD_RATE;
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if(rate)
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{
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r1 = rate2num(mp, rate);
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r2 = r1+1;
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}
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else
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{
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r1 = 0;
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r2 = MPG123_RATES+1; /* including forced rate */
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}
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|
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if(r1 < 0) return MPG123_BAD_RATE;
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|
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/* now match the encodings */
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for(ratei = r1; ratei < r2; ++ratei)
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for(ic = 0; ic < 2; ++ic)
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{
|
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for(ie = 0; ie < MPG123_ENCODINGS; ++ie)
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|
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@ -428,6 +520,14 @@ int attribute_align_arg mpg123_fmt(mpg123_pars *mp, long rate, int channels, int
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return MPG123_OK;
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}
|
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// Keep old behaviour, error on rate=0.
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int attribute_align_arg mpg123_fmt(mpg123_pars *mp, long rate, int channels, int encodings)
|
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{
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return (rate == 0)
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? MPG123_BAD_RATE
|
||||
: mpg123_fmt2(mp, rate, channels, encodings);
|
||||
}
|
||||
|
||||
int attribute_align_arg mpg123_format_support(mpg123_handle *mh, long rate, int encoding)
|
||||
{
|
||||
if(mh == NULL) return 0;
|
||||
|
|
@ -484,37 +584,17 @@ off_t outblock_bytes(mpg123_handle *fr, off_t s)
|
|||
}
|
||||
|
||||
#ifndef NO_32BIT
|
||||
|
||||
/* Remove every fourth byte, facilitating conversion from 32 bit to 24 bit integers.
|
||||
This has to be aware of endianness, of course. */
|
||||
static void chop_fourth_byte(struct outbuffer *buf)
|
||||
{
|
||||
unsigned char *wpos = buf->data;
|
||||
unsigned char *rpos = buf->data;
|
||||
#ifdef WORDS_BIGENDIAN
|
||||
while((size_t) (rpos - buf->data + 4) <= buf->fill)
|
||||
{
|
||||
/* Really stupid: Copy, increment. Byte per byte. */
|
||||
*wpos = *rpos;
|
||||
wpos++; rpos++;
|
||||
*wpos = *rpos;
|
||||
wpos++; rpos++;
|
||||
*wpos = *rpos;
|
||||
wpos++; rpos++;
|
||||
rpos++; /* Skip the lowest byte (last). */
|
||||
}
|
||||
#else
|
||||
while((size_t) (rpos - buf->data + 4) <= buf->fill)
|
||||
{
|
||||
/* Really stupid: Copy, increment. Byte per byte. */
|
||||
rpos++; /* Skip the lowest byte (first). */
|
||||
*wpos = *rpos;
|
||||
wpos++; rpos++;
|
||||
*wpos = *rpos;
|
||||
wpos++; rpos++;
|
||||
*wpos = *rpos;
|
||||
wpos++; rpos++;
|
||||
}
|
||||
#endif
|
||||
size_t blocks = buf->fill/4;
|
||||
size_t i;
|
||||
for(i=0; i<blocks; ++i,wpos+=3,rpos+=4)
|
||||
DROP4BYTE(wpos, rpos)
|
||||
buf->fill = wpos-buf->data;
|
||||
}
|
||||
|
||||
|
|
@ -526,18 +606,7 @@ static void conv_s32_to_u32(struct outbuffer *buf)
|
|||
size_t count = buf->fill/sizeof(int32_t);
|
||||
|
||||
for(i=0; i<count; ++i)
|
||||
{
|
||||
/* Different strategy since we don't have a larger type at hand.
|
||||
Also watch out for silly +-1 fun because integer constants are signed in C90! */
|
||||
if(ssamples[i] >= 0)
|
||||
usamples[i] = (uint32_t)ssamples[i] + 2147483647+1;
|
||||
/* The smallest value goes zero. */
|
||||
else if(ssamples[i] == ((int32_t)-2147483647-1))
|
||||
usamples[i] = 0;
|
||||
/* Now -value is in the positive range of signed int ... so it's a possible value at all. */
|
||||
else
|
||||
usamples[i] = (uint32_t)2147483647+1 - (uint32_t)(-ssamples[i]);
|
||||
}
|
||||
usamples[i] = CONV_SU32(ssamples[i]);
|
||||
}
|
||||
|
||||
#endif
|
||||
|
|
@ -559,10 +628,7 @@ static void conv_s16_to_u16(struct outbuffer *buf)
|
|||
size_t count = buf->fill/sizeof(int16_t);
|
||||
|
||||
for(i=0; i<count; ++i)
|
||||
{
|
||||
long tmp = (long)ssamples[i]+32768;
|
||||
usamples[i] = (uint16_t)tmp;
|
||||
}
|
||||
usamples[i] = CONV_SU16(ssamples[i]);
|
||||
}
|
||||
|
||||
#ifndef NO_REAL
|
||||
|
|
@ -618,6 +684,18 @@ static void conv_s16_to_s32(struct outbuffer *buf)
|
|||
#endif
|
||||
#endif
|
||||
|
||||
#include "swap_bytes_impl.h"
|
||||
|
||||
void swap_endian(struct outbuffer *buf, int block)
|
||||
{
|
||||
size_t count;
|
||||
|
||||
if(block >= 2)
|
||||
{
|
||||
count = buf->fill/(unsigned int)block;
|
||||
swap_bytes(buf->data, (size_t)block, count);
|
||||
}
|
||||
}
|
||||
|
||||
void postprocess_buffer(mpg123_handle *fr)
|
||||
{
|
||||
|
|
@ -680,4 +758,17 @@ void postprocess_buffer(mpg123_handle *fr)
|
|||
break;
|
||||
#endif
|
||||
}
|
||||
if(fr->p.flags & MPG123_FORCE_ENDIAN)
|
||||
{
|
||||
if(
|
||||
#ifdef WORDS_BIGENDIAN
|
||||
!(
|
||||
#endif
|
||||
fr->p.flags & MPG123_BIG_ENDIAN
|
||||
#ifdef WORDS_BIGENDIAN
|
||||
)
|
||||
#endif
|
||||
)
|
||||
swap_endian(&fr->buffer, mpg123_encsize(fr->af.encoding));
|
||||
}
|
||||
}
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue