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authorEric Wollesen <encoded@xmtp.net>2008-09-12 16:05:23 +0200
committerMax Kellermann <max@duempel.org>2008-09-12 16:05:23 +0200
commit5f8eebd122ebf49bfcb6b6d6c6063bb1a932e7ff (patch)
tree1df236e54479adf35b0729b27c3fd87dce7b143c
parent4970c42c8675ff6a992f159dc97837d3c0e2d35e (diff)
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shout: added mp3 encoder
[mk: moved this patch after "Refactor and cleanup of shout Ogg and MP3 audio outputs". The original commit message follows, although it is outdated:] Creation of shout_mp3 audio output plugin. Basically I just copied the existing shout plugin and replaced ogg with lame. Uses lame for mp3 encoding. Next step is to pull common functionality out of each shout plugin and share it between them. Configuration options for "shout_mp3" are the same as for "shout".
Diffstat (limited to '')
-rw-r--r--configure.ac35
-rw-r--r--m4/lame.m4108
-rw-r--r--src/Makefile.am1
-rw-r--r--src/audioOutputs/audioOutput_shout.c1
-rw-r--r--src/audioOutputs/audioOutput_shout.h1
-rw-r--r--src/audioOutputs/audioOutput_shout_mp3.c194
6 files changed, 340 insertions, 0 deletions
diff --git a/configure.ac b/configure.ac
index ffe161307..d98eb6486 100644
--- a/configure.ac
+++ b/configure.ac
@@ -74,6 +74,7 @@ fi
AC_ARG_ENABLE(ao,[ --enable-ao enable support for libao (default: disable)],[enable_ao=$enableval],[enable_ao=no])
AC_ARG_ENABLE(shout_ogg,[ --disable-shout_ogg disable support for ogg streaming through shout (default: enable)],[enable_shout_ogg=$enableval],[enable_shout_ogg=yes])
+AC_ARG_ENABLE(shout_mp3,[ --disable-shout_mp3 disable support for mp3 streaming through shout (default: enable)],[enable_shout_mp3=$enableval],[enable_shout_mp3=yes])
AC_ARG_ENABLE(iconv,[ --disable-iconv disable iconv support (default: enable)],[enable_iconv=$enableval],[enable_iconv=yes])
AC_ARG_ENABLE(ipv6,[ --disable-ipv6 disable IPv6 support (default: enable)],[enable_ipv6=$enableval],[enable_ipv6=yes])
AC_ARG_ENABLE(tcp,[ --disable-tcp disable support for clients connecting via TCP (default: enable)],[enable_tcp=$enableval],[enable_tcp=yes])
@@ -88,6 +89,7 @@ AC_ARG_ENABLE(oggvorbis,[ --disable-oggvorbis disable Ogg Vorbis support (d
AC_ARG_ENABLE(oggflac,[ --disable-oggflac disable OggFLAC support (default: enable)],[enable_oggflac=$enableval],enable_oggflac=yes)
AC_ARG_ENABLE(flac,[ --disable-flac disable flac support (default: enable)],[enable_flac=$enableval],[enable_flac=yes])
AC_ARG_ENABLE(mp3,[ --disable-mp3 disable mp3 support (default: enable)],[enable_mp3=$enableval],[enable_mp3=yes])
+AC_ARG_ENABLE(lame,[ --disable-lame disable lame support (default: enable)],[enable_lame=$enableval],[enable_lame=yes])
AC_ARG_ENABLE(aac,[ --disable-aac disable AAC support (default: enable)],[enable_aac=$enableval],[enable_aac=yes])
AC_ARG_ENABLE(audiofile,[ --disable-audiofile disable audiofile support, disables wave support (default: enable)],[enable_audiofile=$enableval],[enable_audiofile=yes])
AC_ARG_ENABLE(mod,[ --enable-mod enable MOD support (default: disable)],[enable_mod=$enableval],[enable_mod=yes])
@@ -207,6 +209,20 @@ if test x$enable_shout_ogg = xyes; then
fi
fi
+if test x$enable_shout_mp3 = xyes; then
+ if test x$enable_lame = xno; then
+ AC_MSG_WARN([disabling mp3 shout streaming support because lame is not enabled])
+ enable_shout_mp3=no
+ fi
+ if test x$enable_shout = xno; then
+ AC_MSG_WARN([disabling mp3 shout streaming support because libshout is not found])
+ enable_shout_mp3=no
+ fi
+ if test x$enable_shout_mp3 = xyes; then
+ AC_DEFINE(HAVE_SHOUT_MP3, 1, [Define to enable mp3 streaming support])
+ fi
+fi
+
if test x$enable_ao = xyes; then
XIPH_PATH_AO([AC_DEFINE(HAVE_AO, 1, [Define to play with ao]) MPD_LIBS="$MPD_LIBS $AO_LIBS" MPD_CFLAGS="$MPD_CFLAGS $AO_CFLAGS"], enable_ao=no)
fi
@@ -364,6 +380,12 @@ if test x$enable_mp3 = xyes; then
fi
fi
+if test x$enable_lame = xyes; then
+ AM_PATH_LAME([MPD_LIBS="$MPD_LIBS $LAME_LIBS" MPD_CFLAGS="$MPD_CFLAGS $LAME_CFLAGS"],
+ [enable_lame=no;AC_MSG_WARN(You need lame -- disabling lame support)])
+fi
+
+
if test x$enable_mpc = xyes; then
if test "x$mpcdec_libraries" != "x" ; then
MPCDEC_LIBS="-L$mpcdec_libraries"
@@ -753,11 +775,18 @@ else
echo " Shout ogg streaming support ...disabled"
fi
+if test x$enable_shout_mp3 = xyes; then
+ echo " Shout mp3 streaming support ...enabled"
+else
+ echo " Shout mp3 streaming support ...disabled"
+fi
+
echo ""
if test x$enable_ao = xno &&
test x$enable_oss = xno &&
test x$enable_shout_ogg = xno &&
+ test x$enable_shout_mp3 = xno &&
test x$enable_alsa = xno &&
test x$enable_osx = xno &&
test x$enable_pulse = xno &&
@@ -781,6 +810,12 @@ else
echo " mp3 support ...................disabled"
fi
+if test x$enable_lame = xyes; then
+ echo " lame support ..................enabled"
+else
+ echo " lame support ..................disabled"
+fi
+
if test x$enable_oggvorbis = xyes; then
echo " Ogg Vorbis support ............enabled"
if test x$use_tremor = xyes; then
diff --git a/m4/lame.m4 b/m4/lame.m4
new file mode 100644
index 000000000..5ebf550df
--- /dev/null
+++ b/m4/lame.m4
@@ -0,0 +1,108 @@
+dnl borrowed from oddsock.org
+dnl AM_PATH_LAME([ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND]])
+dnl Test for liblame, and define LAME_CFLAGS and LAME_LIBS
+dnl
+AC_DEFUN([AM_PATH_LAME],
+[dnl
+dnl Get the cflags and libraries
+dnl
+AC_ARG_WITH(lame,[ --with-lame=PFX Prefix where liblame is installed (optional)], lame_prefix="$withval", lame_prefix="")
+AC_ARG_WITH(lame-libraries,[ --with-lame-libraries=DIR Directory where liblame library is installed (optional)], lame_libraries="$withval", lame_libraries="")
+AC_ARG_WITH(lame-includes,[ --with-lame-includes=DIR Directory where liblame header files are installed (optional)], lame_includes="$withval", lame_includes="")
+AC_ARG_ENABLE(lametest, [ --disable-lametest Do not try to compile and run a test liblame program],, enable_lametest=yes)
+
+if test "x$lame_prefix" != "xno" ; then
+
+ if test "x$lame_libraries" != "x" ; then
+ LAME_LIBS="-L$lame_libraries"
+ elif test "x$lame_prefix" != "x" ; then
+ LAME_LIBS="-L$lame_prefix/lib"
+ elif test "x$prefix" != "xNONE" ; then
+ LAME_LIBS="-L$prefix/lib"
+ fi
+
+ LAME_LIBS="$LAME_LIBS -lmp3lame -lm"
+
+ if test "x$lame_includes" != "x" ; then
+ LAME_CFLAGS="-I$lame_includes"
+ elif test "x$lame_prefix" != "x" ; then
+ LAME_CFLAGS="-I$lame_prefix/include"
+ elif test "x$prefix" != "xNONE"; then
+ LAME_CFLAGS="-I$prefix/include"
+ fi
+
+ AC_MSG_CHECKING(for liblame)
+ no_lame=""
+
+
+ if test "x$enable_lametest" = "xyes" ; then
+ ac_save_CFLAGS="$CFLAGS"
+ ac_save_LIBS="$LIBS"
+ CFLAGS="$CFLAGS $LAME_CFLAGS"
+ LIBS="$LIBS $LAME_LIBS"
+dnl
+dnl Now check if the installed liblame is sufficiently new.
+dnl
+ rm -f conf.lametest
+ AC_TRY_RUN([
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <lame/lame.h>
+
+int main ()
+{
+ system("touch conf.lametest");
+ return 0;
+}
+
+],, no_lame=yes,[echo $ac_n "cross compiling; assumed OK... $ac_c"])
+ CFLAGS="$ac_save_CFLAGS"
+ LIBS="$ac_save_LIBS"
+ fi
+
+ if test "x$no_lame" = "x" ; then
+ AC_MSG_RESULT(yes)
+ ifelse([$1], , :, [$1])
+ else
+ AC_MSG_RESULT(no)
+ if test -f conf.lametest ; then
+ :
+ else
+ echo "*** Could not run liblame test program, checking why..."
+ CFLAGS="$CFLAGS $LAME_CFLAGS"
+ LIBS="$LIBS $LAME_LIBS"
+ AC_TRY_LINK([
+#include <stdio.h>
+#include <lame/lame.h>
+], [ return 0; ],
+ [ echo "*** The test program compiled, but did not run. This usually means"
+ echo "*** that the run-time linker is not finding liblame or finding the wrong"
+ echo "*** version of liblame. If it is not finding liblame, you'll need to set your"
+ echo "*** LD_LIBRARY_PATH environment variable, or edit /etc/ld.so.conf to point"
+ echo "*** to the installed location Also, make sure you have run ldconfig if that"
+ echo "*** is required on your system"
+ echo "***"
+ echo "*** If you have an old version installed, it is best to remove it, although"
+ echo "*** you may also be able to get things to work by modifying LD_LIBRARY_PATH"],
+ [ echo "*** The test program failed to compile or link. See the file config.log for the"
+ echo "*** exact error that occured. This usually means liblame was incorrectly installed"
+ echo "*** or that you have moved liblame since it was installed." ])
+ CFLAGS="$ac_save_CFLAGS"
+ LIBS="$ac_save_LIBS"
+ fi
+ LAME_CFLAGS=""
+ LAME_LIBS=""
+ ifelse([$2], , :, [$2])
+ fi
+ AC_DEFINE(HAVE_LAME, 1, [Define if you have liblame.])
+ use_lame="1"
+else
+ LAME_CFLAGS=""
+ LAME_LIBS=""
+fi
+ AC_SUBST(LAME_CFLAGS)
+ AC_SUBST(LAME_LIBS)
+ rm -f conf.lametest
+])
+
diff --git a/src/Makefile.am b/src/Makefile.am
index 097722dd8..272a63199 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -4,6 +4,7 @@ SUBDIRS = $(MP4FF_SUBDIR)
mpd_audioOutputs = \
audioOutputs/audioOutput_shout.c \
audioOutputs/audioOutput_shout_ogg.c \
+ audioOutputs/audioOutput_shout_mp3.c \
audioOutputs/audioOutput_null.c \
audioOutputs/audioOutput_fifo.c \
audioOutputs/audioOutput_alsa.c \
diff --git a/src/audioOutputs/audioOutput_shout.c b/src/audioOutputs/audioOutput_shout.c
index 1e60e3546..82a68fa9f 100644
--- a/src/audioOutputs/audioOutput_shout.c
+++ b/src/audioOutputs/audioOutput_shout.c
@@ -113,6 +113,7 @@ static void free_shout_data(struct shout_data *sd)
static void load_shout_plugins(void)
{
init_shout_encoder_plugins();
+ load_shout_encoder_plugin(&shout_mp3_encoder);
load_shout_encoder_plugin(&shout_ogg_encoder);
}
diff --git a/src/audioOutputs/audioOutput_shout.h b/src/audioOutputs/audioOutput_shout.h
index c21ddff40..14f6b00a7 100644
--- a/src/audioOutputs/audioOutput_shout.h
+++ b/src/audioOutputs/audioOutput_shout.h
@@ -94,6 +94,7 @@ struct shout_data {
shout_buffer buf;
};
+extern shout_encoder_plugin shout_mp3_encoder;
extern shout_encoder_plugin shout_ogg_encoder;
#endif
diff --git a/src/audioOutputs/audioOutput_shout_mp3.c b/src/audioOutputs/audioOutput_shout_mp3.c
new file mode 100644
index 000000000..388808c1b
--- /dev/null
+++ b/src/audioOutputs/audioOutput_shout_mp3.c
@@ -0,0 +1,194 @@
+/* the Music Player Daemon (MPD)
+ * Copyright (C) 2003-2007 by Warren Dukes (warren.dukes@gmail.com)
+ * This project's homepage is: 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#include "../output_api.h"
+
+#ifdef HAVE_SHOUT_MP3
+
+#include "../utils.h"
+#include "audioOutput_shout.h"
+#include <lame/lame.h>
+
+typedef struct _lame_data {
+ lame_global_flags *gfp;
+} lame_data;
+
+
+static int shout_mp3_encoder_init(shout_data * sd)
+{
+ lame_data *ld;
+
+ if (NULL == (ld = xmalloc(sizeof(lame_data))))
+ FATAL("error initializing lame encoder data\n");
+ sd->encoder_data = ld;
+
+ return 0;
+}
+
+static int shout_mp3_encoder_clear_encoder(shout_data * sd)
+{
+ lame_data *ld = (lame_data *)sd->encoder_data;
+ shout_buffer *buf = &sd->buf;
+ int ret;
+
+ if ((ret = lame_encode_flush(ld->gfp, buf->data + buf->len,
+ buf->len)) < 0)
+ ERROR("error flushing lame buffers\n");
+
+ return (ret > 0);
+}
+
+static void shout_mp3_encoder_finish(shout_data * sd)
+{
+ lame_data *ld = (lame_data *)sd->encoder_data;
+
+ lame_close(ld->gfp);
+ ld->gfp = NULL;
+}
+
+static int shout_mp3_encoder_init_encoder(shout_data * sd)
+{
+ lame_data *ld = (lame_data *)sd->encoder_data;
+
+ if (NULL == (ld->gfp = lame_init())) {
+ ERROR("error initializing lame encoder for shout\n");
+ return -1;
+ }
+
+ if (sd->quality >= -1.0) {
+ if (0 != lame_set_VBR(ld->gfp, vbr_rh)) {
+ ERROR("error setting lame VBR mode\n");
+ return -1;
+ }
+ if (0 != lame_set_VBR_q(ld->gfp, sd->quality)) {
+ ERROR("error setting lame VBR quality\n");
+ return -1;
+ }
+ } else {
+ if (0 != lame_set_brate(ld->gfp, sd->bitrate)) {
+ ERROR("error setting lame bitrate\n");
+ return -1;
+ }
+ }
+
+ if (0 != lame_set_num_channels(ld->gfp,
+ sd->audio_format.channels)) {
+ ERROR("error setting lame num channels\n");
+ return -1;
+ }
+
+ if (0 != lame_set_in_samplerate(ld->gfp,
+ sd->audio_format.sampleRate)) {
+ ERROR("error setting lame sample rate\n");
+ return -1;
+ }
+
+ if (0 > lame_init_params(ld->gfp))
+ FATAL("error initializing lame params\n");
+
+ return 0;
+}
+
+static int shout_mp3_encoder_send_metadata(shout_data * sd,
+ char * song, size_t size)
+{
+ char artist[size];
+ char title[size];
+ int i;
+ struct tag *tag = sd->tag;
+
+ strncpy(artist, "", size);
+ strncpy(title, "", size);
+
+ for (i = 0; i < tag->numOfItems; i++) {
+ switch (tag->items[i]->type) {
+ case TAG_ITEM_ARTIST:
+ strncpy(artist, tag->items[i]->value, size);
+ break;
+ case TAG_ITEM_TITLE:
+ strncpy(title, tag->items[i]->value, size);
+ break;
+
+ default:
+ break;
+ }
+ }
+ snprintf(song, size, "%s - %s", title, artist);
+
+ return 1;
+}
+
+static int shout_mp3_encoder_encode(shout_data * sd,
+ const char * chunk, size_t len)
+{
+ unsigned int i;
+ int j;
+ float (*lamebuf)[2];
+ shout_buffer *buf = &(sd->buf);
+ unsigned int samples;
+ int bytes = sd->audio_format.bits / 8;
+ lame_data *ld = (lame_data *)sd->encoder_data;
+ int bytes_out;
+
+ samples = len / (bytes * sd->audio_format.channels);
+ /* rough estimate, from lame.h */
+ lamebuf = xmalloc(sizeof(float) * (1.25 * samples + 7200));
+
+ /* this is for only 16-bit audio */
+
+ for (i = 0; i < samples; i++) {
+ for (j = 0; j < sd->audio_format.channels; j++) {
+ lamebuf[j][i] = *((const mpd_sint16 *) chunk);
+ chunk += bytes;
+ }
+ }
+
+ bytes_out = lame_encode_buffer_float(ld->gfp, lamebuf[0], lamebuf[1],
+ samples, buf->data,
+ buf->max_len - buf->len);
+ free(lamebuf);
+
+ if (0 > bytes_out) {
+ ERROR("error encoding lame buffer for shout\n");
+ lame_close(ld->gfp);
+ ld->gfp = NULL;
+ return -1;
+ } else
+ buf->len = bytes_out; /* signed to unsigned conversion */
+
+ return 0;
+}
+
+
+shout_encoder_plugin shout_mp3_encoder = {
+ "mp3",
+ SHOUT_FORMAT_MP3,
+
+ shout_mp3_encoder_clear_encoder,
+ shout_mp3_encoder_encode,
+ shout_mp3_encoder_finish,
+ shout_mp3_encoder_init,
+ shout_mp3_encoder_init_encoder,
+ shout_mp3_encoder_send_metadata,
+};
+
+#else
+
+DISABLED_SHOUT_ENCODER_PLUGIN(shout_mp3_encoder);
+
+#endif