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decoder/Mp4v2: add MP4v2 decoder plugin 

This plugin uses the MP4v2 library to play mp4/m4a files.
It is limited to file_decode.
This commit is contained in:
Andrée Ekroth 2014-08-07 19:52:56 +02:00
parent bbea6564fc
commit 330b6a0482
7 changed files with 392 additions and 0 deletions
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3
INSTALL
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@ -119,6 +119,9 @@ For AdLib playback.
despotify - https://github.com/SimonKagstrom/despotify
For Spotify playback.
MP4v2 - https://code.google.com/p/mp4v2/
For MP4 playback. You will need FAAD2.
Optional Miscellaneous Dependencies
-----------------------------------

8
Makefile.am
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@ -796,6 +796,7 @@ libdecoder_a_CPPFLAGS = $(AM_CPPFLAGS) \
$(WAVPACK_CFLAGS) \
$(MAD_CFLAGS) \
$(MPG123_CFLAGS) \
$(MP4V2_CFLAGS) \
$(OPUS_CFLAGS) \
$(FFMPEG_CFLAGS) \
$(MPCDEC_CFLAGS) \
@ -815,6 +816,7 @@ DECODER_LIBS = \
$(WAVPACK_LIBS) \
$(MAD_LIBS) \
$(MPG123_LIBS) \
$(MP4V2_LIBS) \
$(OPUS_LIBS) \
$(FFMPEG_LIBS) \
$(MPCDEC_LIBS) \
@ -919,6 +921,12 @@ noinst_LIBRARIES += libmodplug_decoder_plugin.a
DECODER_LIBS += libmodplug_decoder_plugin.a $(MODPLUG_LIBS)
endif
if HAVE_MP4V2
libdecoder_a_SOURCES += \
src/decoder/plugins/Mp4v2DecoderPlugin.cxx \
src/decoder/plugins/Mp4v2DecoderPlugin.hxx
endif
if ENABLE_SIDPLAY
libdecoder_a_SOURCES += \
src/decoder/plugins/SidplayDecoderPlugin.cxx \

1
NEWS
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@ -38,6 +38,7 @@ ver 0.19 (not yet released)
- audiofile: log libaudiofile errors
- sndfile: support scanning remote files
- sndfile: support tags "comment", "album", "track", "genre"
- mp4v2: support playback of MP4 files.
* encoder:
- shine: new encoder plugin
* threads:

25
configure.ac
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@ -475,6 +475,11 @@ AC_ARG_ENABLE(modplug,
[enable modplug decoder plugin]),,
enable_modplug=auto)
AC_ARG_ENABLE(mp4v2,
AS_HELP_STRING([--enable-mp4v2],
[enable libmp4v2 decoder plugin]),,
enable_mp4v2=auto)
AC_ARG_ENABLE(mpc,
AS_HELP_STRING([--enable-mpc],
[disable musepack (MPC) support (default: auto)]),,
@ -1222,6 +1227,24 @@ if test x$enable_modplug = xyes; then
fi
AM_CONDITIONAL(HAVE_MODPLUG, test x$enable_modplug = xyes)
dnl -------------------------------- libmp4v2 ---------------------------------
if test x$enable_aac = xyes; then
MPD_AUTO_LIB(mp4v2, MP4V2, mp4v2, MP4Create, [-lmp4v2], [],
[mp4v2], [libmp4v2 not found])
if test x$enable_mp4v2 = xyes; then
AC_DEFINE(HAVE_MP4V2, 1, [Define to use libmp4v2 for MP4 decoding])
fi
else
if test x$enable_mp4v2 = xyes; then
AC_MSG_ERROR([MP4V2 requires AAC!])
fi
enable_mp4v2 = no
fi
AM_CONDITIONAL(HAVE_MP4V2, test x$enable_mp4v2 = xyes)
dnl -------------------------------- libopus ----------------------------------
MPD_AUTO_PKG(opus, OPUS, [opus ogg],
[opus decoder plugin], [libopus not found])
@ -1372,6 +1395,7 @@ if
test x$enable_mad = xno &&
test x$enable_mikmod = xno; then
test x$enable_modplug = xno &&
test x$enable_mp4v2 = xno &&
test x$enable_mpc = xno &&
test x$enable_mpg123 = xno &&
test x$enable_opus = xno &&
@ -1844,6 +1868,7 @@ printf '\n\t'
results(sndfile, [libsndfile])
results(mikmod, [MikMod])
results(modplug, [MODPLUG])
results(mp4v2, [MP4V2])
results(mad, [MAD])
results(mpg123, [MPG123])
results(mpc, [Musepack])

4
src/decoder/DecoderList.cxx
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@ -37,6 +37,7 @@
#include "plugins/MadDecoderPlugin.hxx"
#include "plugins/SndfileDecoderPlugin.hxx"
#include "plugins/Mpg123DecoderPlugin.hxx"
#include "plugins/Mp4v2DecoderPlugin.hxx"
#include "plugins/WildmidiDecoderPlugin.hxx"
#include "plugins/MikmodDecoderPlugin.hxx"
#include "plugins/ModplugDecoderPlugin.hxx"
@ -54,6 +55,9 @@ const struct DecoderPlugin *const decoder_plugins[] = {
#ifdef HAVE_MPG123
&mpg123_decoder_plugin,
#endif
#ifdef HAVE_MP4V2
&mp4v2_decoder_plugin,
#endif
#ifdef ENABLE_VORBIS_DECODER
&vorbis_decoder_plugin,
#endif

326
src/decoder/plugins/Mp4v2DecoderPlugin.cxx Normal file
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@ -0,0 +1,326 @@
/*
* Copyright (C) 2003-2014 The Music Player Daemon Project
* http://www.musicpd.org
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include "config.h" /* must be first for large file support */
#include "Mp4v2DecoderPlugin.hxx"
#include "../DecoderAPI.hxx"
#include "CheckAudioFormat.hxx"
#include "tag/TagHandler.hxx"
#include "fs/Path.hxx"
#include "util/Error.hxx"
#include "util/Domain.hxx"
#include "Log.hxx"
#include <mp4v2/mp4v2.h>
#include <neaacdec.h>
#include <cstdio>
#include <cstdlib>
static constexpr Domain mp4v2_decoder_domain("mp4v2");
static MP4TrackId
mp4_get_aac_track(MP4FileHandle handle, NeAACDecHandle decoder,
AudioFormat &audio_format, Error &error)
{
uint32_t sample_rate;
#ifdef HAVE_FAAD_LONG
/* neaacdec.h declares all arguments as "unsigned long", but
internally expects uint32_t pointers. To avoid gcc
warnings, use this workaround. */
unsigned long *sample_rate_r = (unsigned long*)&sample_rate;
#else
uint32_t *sample_rate_r = sample_rate;
#endif
const MP4TrackId tracks = MP4GetNumberOfTracks(handle);
for (MP4TrackId id = 1; id <= tracks; id++) {
const char* track_type = MP4GetTrackType(handle, id);
if (track_type == 0)
continue;
const auto obj_type = MP4GetTrackEsdsObjectTypeId(handle, id);
if (obj_type == MP4_INVALID_AUDIO_TYPE)
continue;
if (obj_type == MP4_MPEG4_AUDIO_TYPE) {
const auto mpeg_type = MP4GetTrackAudioMpeg4Type(handle, id);
if (!MP4_IS_MPEG4_AAC_AUDIO_TYPE(mpeg_type))
continue;
} else if (!MP4_IS_AAC_AUDIO_TYPE(obj_type))
continue;
if (decoder == nullptr)
/* found audio track, no decoder */
return id;
unsigned char *buff = nullptr;
unsigned buff_size = 0;
if (!MP4GetTrackESConfiguration(handle, id, &buff, &buff_size))
continue;
uint8_t channels;
int32_t nbytes = NeAACDecInit(decoder, buff, buff_size,
sample_rate_r, &channels);
free(buff);
if (nbytes < 0)
/* invalid stream */
continue;
if (!audio_format_init_checked(audio_format, sample_rate,
SampleFormat::S16,
channels,
error)) {
error.Set(mp4v2_decoder_domain,
"Invalid audio format");
continue;
}
return id;
}
return MP4_INVALID_TRACK_ID;
}
static NeAACDecHandle
mp4_faad_new(MP4FileHandle handle, AudioFormat &audio_format, Error &error)
{
const NeAACDecHandle decoder = NeAACDecOpen();
const NeAACDecConfigurationPtr config =
NeAACDecGetCurrentConfiguration(decoder);
config->outputFormat = FAAD_FMT_16BIT;
config->downMatrix = 1;
config->dontUpSampleImplicitSBR = 0;
NeAACDecSetConfiguration(decoder, config);
const auto track = mp4_get_aac_track(handle, decoder, audio_format, error);
if (track == MP4_INVALID_TRACK_ID) {
LogError(error);
NeAACDecClose(decoder);
return nullptr;
}
return decoder;
}
static void
mp4_file_decode(Decoder &mpd_decoder, Path path_fs)
{
const MP4FileHandle handle = MP4Read(path_fs.c_str());
if (handle == MP4_INVALID_FILE_HANDLE) {
FormatError(mp4v2_decoder_domain,
"Unable to open file");
return;
}
AudioFormat audio_format;
Error error;
const NeAACDecHandle decoder = mp4_faad_new(handle, audio_format, error);
if (decoder == nullptr) {
LogError(error);
MP4Close(handle);
return;
}
const MP4TrackId track = mp4_get_aac_track(handle, nullptr, audio_format, error);
/* initialize the MPD core */
const uint32_t scale = MP4GetTrackTimeScale(handle, track);
const float duration = ((float)MP4GetTrackDuration(handle, track)) / scale + 0.5f;
const MP4SampleId num_samples = MP4GetTrackNumberOfSamples(handle, track);
decoder_initialized(mpd_decoder, audio_format, true, duration);
/* the decoder loop */
DecoderCommand cmd = DecoderCommand::NONE;
for (MP4SampleId sample = 1;
sample < num_samples && cmd != DecoderCommand::STOP;
sample++) {
unsigned char *data = nullptr;
unsigned int data_length = 0;
if (cmd == DecoderCommand::SEEK) {
const double offset = decoder_seek_where(mpd_decoder);
sample = MP4GetSampleIdFromTime(handle, track,
(MP4Timestamp)(offset * (double)scale), 0);
decoder_command_finished(mpd_decoder);
}
/* read */
if (MP4ReadSample(handle, track, sample, &data, &data_length) == 0) {
FormatError(mp4v2_decoder_domain, "unable to read sample");
break;
}
/* decode it */
NeAACDecFrameInfo frame_info;
const void *const decoded = NeAACDecDecode(decoder, &frame_info, data, data_length);
if (frame_info.error > 0) {
FormatWarning(mp4v2_decoder_domain,
"error decoding AAC stream: %s",
NeAACDecGetErrorMessage(frame_info.error));
break;
}
if (frame_info.channels != audio_format.channels) {
FormatDefault(mp4v2_decoder_domain,
"channel count changed from %u to %u",
audio_format.channels, frame_info.channels);
break;
}
if (frame_info.samplerate != audio_format.sample_rate) {
FormatDefault(mp4v2_decoder_domain,
"sample rate changed from %u to %lu",
audio_format.sample_rate,
(unsigned long)frame_info.samplerate);
break;
}
/* update bit rate and position */
unsigned bit_rate = 0;
if (frame_info.samples > 0) {
bit_rate = frame_info.bytesconsumed * 8.0 *
frame_info.channels * audio_format.sample_rate /
frame_info.samples / 1000 + 0.5;
}
/* send PCM samples to MPD */
cmd = decoder_data(mpd_decoder, nullptr, decoded,
(size_t)frame_info.samples * 2,
bit_rate);
free(data);
}
/* cleanup */
NeAACDecClose(decoder);
MP4Close(handle);
}
static inline void
mp4_safe_invoke_tag(const struct tag_handler *handler, void *handler_ctx,
TagType tag, const char *value)
{
if (value != nullptr)
tag_handler_invoke_tag(handler, handler_ctx, tag, value);
}
static bool
mp4_scan_file(Path path_fs,
const struct tag_handler *handler, void *handler_ctx)
{
const MP4FileHandle handle = MP4Read(path_fs.c_str());
if (handle == MP4_INVALID_FILE_HANDLE)
return false;
AudioFormat tmp_audio_format;
Error error;
const MP4TrackId id = mp4_get_aac_track(handle, nullptr, tmp_audio_format, error);
if (id == MP4_INVALID_TRACK_ID) {
LogError(error);
MP4Close(handle);
return false;
}
const MP4Duration dur = MP4GetTrackDuration(handle, id) /
MP4GetTrackTimeScale(handle, id);
tag_handler_invoke_duration(handler, handler_ctx, dur);
const MP4Tags* tags = MP4TagsAlloc();
MP4TagsFetch(tags, handle);
mp4_safe_invoke_tag(handler, handler_ctx, TAG_NAME, tags->name);
mp4_safe_invoke_tag(handler, handler_ctx, TAG_ARTIST, tags->artist);
mp4_safe_invoke_tag(handler, handler_ctx, TAG_ALBUM_ARTIST, tags->albumArtist);
mp4_safe_invoke_tag(handler, handler_ctx, TAG_ALBUM, tags->album);
mp4_safe_invoke_tag(handler, handler_ctx, TAG_COMPOSER, tags->composer);
mp4_safe_invoke_tag(handler, handler_ctx, TAG_COMMENT, tags->comments);
mp4_safe_invoke_tag(handler, handler_ctx, TAG_GENRE, tags->genre);
mp4_safe_invoke_tag(handler, handler_ctx, TAG_DATE, tags->releaseDate);
mp4_safe_invoke_tag(handler, handler_ctx, TAG_ARTIST_SORT, tags->sortArtist);
mp4_safe_invoke_tag(handler, handler_ctx, TAG_ALBUM_ARTIST_SORT, tags->sortAlbumArtist);
char buff[8]; /* tmp buffer for index to string. */
if (tags->track != nullptr) {
sprintf(buff, "%d", tags->track->index);
tag_handler_invoke_tag(handler, handler_ctx, TAG_TRACK, buff);
}
if (tags->disk != nullptr) {
sprintf(buff, "%d", tags->disk->index);
tag_handler_invoke_tag(handler, handler_ctx, TAG_DISC, buff);
}
MP4TagsFree(tags);
MP4Close(handle);
return true;
}
static const char *const mp4_suffixes[] = {
"mp4",
"m4a",
/* "m4p", encrypted */
/* "m4b", audio book */
/* "m4r", ring tones */
/* "m4v", video */
nullptr
};
static const char *const mp4_mime_types[] = {
"application/mp4",
"application/m4a",
"audio/mp4",
"audio/m4a",
/* "audio/m4p", */
/* "audio/m4b", */
/* "audio/m4r", */
/* "audio/m4v", */
nullptr
};
const struct DecoderPlugin mp4v2_decoder_plugin = {
"mp4v2",
nullptr,
nullptr,
nullptr,
mp4_file_decode,
mp4_scan_file,
nullptr,
nullptr,
mp4_suffixes,
mp4_mime_types
};

25
src/decoder/plugins/Mp4v2DecoderPlugin.hxx Normal file
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@ -0,0 +1,25 @@
/*
* Copyright (C) 2003-2014 The Music Player Daemon Project
* http://www.musicpd.org
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#ifndef MPD_DECODER_MP4V2_HXX
#define MPD_DECODER_MP4V2_HXX
extern const struct DecoderPlugin mp4v2_decoder_plugin;
#endif