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Rename mp3 -> mpeg (file sources and function names)

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This commit is contained in:
Arthur Taylor 2021-01-11 21:51:16 -08:00
parent dae19b9502
commit 163f725631
7 changed files with 32 additions and 73 deletions
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10
CMakeLists.txt
View File

@ -302,7 +302,7 @@ add_library (sndfile
src/ogg_vcomment.h
src/ogg_vcomment.c
src/nms_adpcm.c
src/mp3.c
src/mpeg.c
src/mpeg_decode.c
src/mpeg_l3_encode.c
src/GSM610/config.h
@ -1208,8 +1208,8 @@ if (BUILD_TESTING)
$<$<BOOL:${LIBM_REQUIRED}>:m>
)
add_executable (mp3_test tests/mp3_test.c)
target_link_libraries (mp3_test
add_executable (mpeg_test tests/mpeg_test.c)
target_link_libraries (mpeg_test
PRIVATE
sndfile
test_utils
@ -1447,8 +1447,8 @@ if (BUILD_TESTING)
add_test (lossy_comp_test_ogg_opus lossy_comp_test ogg_opus)
add_test (string_test_opus string_test opus)
### mp3-tests ###
add_test (mp3_test mp3_test)
### mpeg-tests ###
add_test (mpeg_test mpeg_test)
add_test (compression_size_test_mpeg compression_size_test mpeg)
### io-tests

8
Makefile.am
View File

@ -69,7 +69,7 @@ src_libsndfile_la_SOURCES = src/sndfile.c src/aiff.c src/au.c src/avr.c src/caf.
src/macos.c src/mat4.c src/mat5.c src/nist.c src/paf.c src/pvf.c src/raw.c src/rx2.c src/sd2.c \
src/sds.c src/svx.c src/txw.c src/voc.c src/wve.c src/w64.c src/wavlike.c src/wav.c src/xi.c src/mpc2k.c src/rf64.c \
src/ogg.c src/ogg.h src/ogg_vorbis.c src/ogg_speex.c src/ogg_pcm.c src/ogg_opus.c src/ogg_vcomment.c src/ogg_vcomment.h \
src/common.h src/sfconfig.h src/sfendian.h src/wavlike.h src/sf_unistd.h src/chanmap.h src/mp3.c
src/common.h src/sfconfig.h src/sfendian.h src/wavlike.h src/sf_unistd.h src/chanmap.h src/mpeg.c
nodist_src_libsndfile_la_SOURCES = $(nodist_include_HEADERS)
src_libsndfile_la_LIBADD = src/GSM610/libgsm.la src/G72x/libg72x.la src/ALAC/libalac.la \
src/libcommon.la $(EXTERNAL_XIPH_LIBS) -lm $(MPEG_LIBS)
@ -222,7 +222,7 @@ check_PROGRAMS += tests/sfversion tests/floating_point_test tests/write_read_tes
tests/checksum_test tests/external_libs_test tests/rdwr_test tests/format_check_test $(CPP_TEST) \
tests/channel_test tests/long_read_write_test tests/stdin_test tests/stdout_test \
tests/dither_test tests/fix_this tests/largefile_test tests/benchmark tests/ogg_opus_test \
tests/mp3_test
tests/mpeg_test
BUILT_SOURCES += \
tests/write_read_test.c \
@ -378,8 +378,8 @@ tests_cpp_test_LDADD = src/libsndfile.la
tests_checksum_test_SOURCES = tests/checksum_test.c tests/utils.c tests/utils.h
tests_checksum_test_LDADD = src/libsndfile.la
tests_mp3_test_SOURCES = tests/mp3_test.c tests/utils.c tests/utils.h
tests_mp3_test_LDADD = src/libsndfile.la
tests_mpeg_test_SOURCES = tests/mpeg_test.c tests/utils.c tests/utils.h
tests_mpeg_test_LDADD = src/libsndfile.la
# Lite remove start
tests_dwvw_test_SOURCES = tests/dwvw_test.c tests/utils.c tests/utils.h

2
src/common.h
View File

@ -896,7 +896,7 @@ int ogg_pcm_open (SF_PRIVATE *psf) ;
int ogg_opus_open (SF_PRIVATE *psf) ;
int ogg_open (SF_PRIVATE *psf) ;
int mp3_open (SF_PRIVATE *psf) ;
int mpeg_open (SF_PRIVATE *psf) ;
/* In progress. Do not currently work. */

59
src/mp3.c → src/mpeg.c
View File

@ -1,6 +1,6 @@
/*
** Copyright (C) 2019 Erik de Castro Lopo <erikd@mega-nerd.com>
** Copyright (C) 2019 Arthur Taylor <art@ified.ca>
** Copyright (C) 2021 Arthur Taylor <art@ified.ca>
**
** This program is free software ; you can redistribute it and/or modify
** it under the terms of the GNU Lesser General Public License as published by
@ -17,47 +17,6 @@
** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
/*
** What is an MP3 file anyways?
**
** Believe it or not, MP3 files don't exist.
**
** The MPEG-1 standard defined a few audio codecs. The standard only defined a
** streaming format of semi-independent frames of audio meant for broadcasting,
** with no details or hints about stored on-disk formats. Each frame defines
** it's own bitrate, channel count, sample rate. However, they aren't
** completely independent.
**
** With its amazing-for-the-time compression ratio, the layer III audio codec
** became quite popular with file sharers and the internet. A stream of layer
** III audio would simply be written as a file, usually with the extension
** .mp3. Over time enthusiast and proprietary encoders sprung up adding
** different metadata headers and trailers, file seeking tables, and fiddling
** with the codecs parameters. These changes are only really based on consensus.
**
** MPEG-1 I/II/III audio can be embedded in a few container formats (including
** WAV), stored raw, or with additional metadata extension headers and trailers.
**
** This file is concerned only with the most common case of MPEG Layer III
** audio without a container but with the additional metadata standards.
**
** For the purposes of libsndfile, the major format of SF_FORMAT_MPEG means the
** following assumptions. A file of major format type SF_FORMAT_MPEG:
** - Contains only layer III audio frames (SF_FORMAT_MPEG_LAYER_III)
** - All MPEG frames contained in the file have the same channel count
** - All MPEG frames contained in the file have the same samplerate
** - Has at least one of:
** - an ID3v1 trailer
** - an ID3v2 header or trailer
** - A Lame/Xing/Info header
**
** Testing has revealed that, more than any other format, MP3 suffers from
** corrupt files in the wild that most other software 'just works' with. This is
** usually because the MP3 decoders are very lenient. They are aided by the
** presence of a regular sync frame, but this makes it hard to classify them
** in a library that consumes other better-specified file formats.
*/
#include "sfconfig.h"
#include "sndfile.h"
@ -67,15 +26,15 @@
#include "mpeg.h"
static int mp3_write_header (SF_PRIVATE *psf, int calc_length) ;
static int mp3_command (SF_PRIVATE *psf, int command, void *data, int datasize) ;
static int mpeg_write_header (SF_PRIVATE *psf, int calc_length) ;
static int mpeg_command (SF_PRIVATE *psf, int command, void *data, int datasize) ;
/*------------------------------------------------------------------------------
* Private functions
*/
static int
mp3_write_header (SF_PRIVATE *psf, int UNUSED (calc_length))
mpeg_write_header (SF_PRIVATE *psf, int UNUSED (calc_length))
{
if (psf->have_written)
return 0 ;
@ -84,7 +43,7 @@ mp3_write_header (SF_PRIVATE *psf, int UNUSED (calc_length))
} ;
static int
mp3_command (SF_PRIVATE *psf, int command, void *data, int datasize)
mpeg_command (SF_PRIVATE *psf, int command, void *data, int datasize)
{ int bitrate_mode ;
switch (command)
@ -129,7 +88,7 @@ mp3_command (SF_PRIVATE *psf, int command, void *data, int datasize)
*/
int
mp3_open (SF_PRIVATE *psf)
mpeg_open (SF_PRIVATE *psf)
{ int error ;
if (psf->file.mode == SFM_RDWR)
@ -147,7 +106,7 @@ mp3_open (SF_PRIVATE *psf)
/* ID3 support */
psf->strings.flags = SF_STR_ALLOW_START ;
psf->write_header = mp3_write_header ;
psf->write_header = mpeg_write_header ;
psf->datalength = 0 ;
psf->dataoffset = 0 ;
} ;
@ -157,7 +116,7 @@ mp3_open (SF_PRIVATE *psf)
return error ;
} ;
psf->command = mp3_command ;
psf->command = mpeg_command ;
return 0 ;
} /* mpeg_open */
@ -165,7 +124,7 @@ mp3_open (SF_PRIVATE *psf)
#else /* HAVE_MPEG */
int
mp3_open (SF_PRIVATE *psf)
mpeg_open (SF_PRIVATE *psf)
{
psf_log_printf (psf, "This version of libsndfile was compiled without MP3 support.\n") ;
return SFE_UNIMPLEMENTED ;

4
src/sndfile.c
View File

@ -2884,7 +2884,7 @@ retry:
/* Guess MP3, try and open it as such. Allows libmpg123 to parse the ID3v2 headers */
if (psf->file.mode == SFM_READ)
{ if (mp3_open (psf) == 0)
{ if (mpeg_open (psf) == 0)
return SF_FORMAT_MPEG | ((~SF_FORMAT_TYPEMASK) & psf->sf.format) ;
else if (psf->codec_close)
psf->codec_close (psf) ;
@ -3270,7 +3270,7 @@ psf_open_file (SF_PRIVATE *psf, SF_INFO *sfinfo)
break ;
case SF_FORMAT_MPEG :
error = mp3_open (psf) ;
error = mpeg_open (psf) ;
break ;
/* Lite remove end */

20
tests/mp3_test.c → tests/mpeg_test.c
View File

@ -48,7 +48,7 @@ static BUFFER data_out ;
static BUFFER data_in ;
static void
mp3_short_test (void)
mpeg_short_test (void)
{ const char * filename = "mpeg_short.mp3" ;
SNDFILE * file ;
@ -106,7 +106,7 @@ mp3_short_test (void)
} /* mpeg_short_test */
static void
mp3_int_test (void)
mpeg_int_test (void)
{ const char * filename = "mpeg_int.mp3" ;
SNDFILE * file ;
@ -161,7 +161,7 @@ mp3_int_test (void)
} /* mpeg_int_test */
static void
mp3_float_test (void)
mpeg_float_test (void)
{ const char * filename = "mpeg_float.mp3" ;
SNDFILE * file ;
@ -210,7 +210,7 @@ mp3_float_test (void)
} /* mpeg_float_test */
static void
mp3_double_test (void)
mpeg_double_test (void)
{ const char * filename = "mpeg_double.mp3" ;
SNDFILE * file ;
@ -260,7 +260,7 @@ mp3_double_test (void)
static void
mp3_stereo_seek_test (const char * filename, int format)
mpeg_stereo_seek_test (const char * filename, int format)
{ static float data [SAMPLE_RATE] ;
static float stereo_out [SAMPLE_RATE * 2] ;
@ -334,12 +334,12 @@ int
main (void)
{
if (HAVE_MPEG)
{ mp3_short_test () ;
mp3_int_test () ;
mp3_float_test () ;
mp3_double_test () ;
{ mpeg_short_test () ;
mpeg_int_test () ;
mpeg_float_test () ;
mpeg_double_test () ;
mp3_stereo_seek_test ("mpeg_seek.mp3", SF_FORMAT_MPEG | SF_FORMAT_MPEG_LAYER_III) ;
mpeg_stereo_seek_test ("mpeg_seek.mp3", SF_FORMAT_MPEG | SF_FORMAT_MPEG_LAYER_III) ;
}
else
puts (" No MPEG tests because mpg123/lame support was not compiled in.") ;

2
tests/test_wrapper.sh.in
View File

@ -353,7 +353,7 @@ echo " $sfversion passed tests on OPUS files."
echo "----------------------------------------------------------------------"
# mpeg-tests
./tests/mp3_test@EXEEXT@
./tests/mpeg_test@EXEEXT@
./tests/compression_size_test@EXEEXT@ mpeg
./tests/string_test@EXEEXT@ mpeg