Commit df681663 authored by Natanael Copa's avatar Natanael Copa

main/lame: new aport

An MP3 encoder and graphical frame analyzer
http://lame.sourceforge.net/
parent 5de10ff3
# Maintainer: Natanael Copa <ncopa@alpinelinux.org>
pkgname=lame
pkgver=3.98.2
pkgrel=0
pkgdesc="An MP3 encoder and graphical frame analyzer"
url="http://lame.sourceforge.net/"
license="LGPL"
subpackages="$pkgname-dev $pkgname-doc"
depends=
makedepends="nasm ncurses-dev autoconf automake libtool"
source="http://downloads.sourceforge.net/sourceforge/$pkgname/$pkgname-398-2.tar.gz
lame-3.98.2-ffmpeg-0.5.patch"
build ()
{
cd "$srcdir"/$pkgname-398-2
# link fronted shared
sed -i -e 's/\(^LDFLAGS.*\)-static/\1/g' frontend/Makefile.am
# fix for parallel builds
mkdir -p libmp3lame/i386/.libs
# Fix for ffmpeg.
# https://bugs.gentoo.org/show_bug.cgi?id=265830
patch -p1 < ../lame-3.98.2-ffmpeg-0.5.patch || return 1
aclocal && automake || return 1
./configure --prefix=/usr \
--enable-nasm \
--disable-mp3x \
--enable-shared
make || return 1
make DESTDIR="$pkgdir" install
}
md5sums="719dae0ee675d0c16e0e89952930ed35 lame-398-2.tar.gz
e84a65409b0512045edd147524ba3ad4 lame-3.98.2-ffmpeg-0.5.patch"
diff -NrU5 lame-398-2.orig/libmp3lame/lame.c lame-398-2/libmp3lame/lame.c
--- lame-398-2.orig/libmp3lame/lame.c 2009-05-03 15:16:40.000000000 +0200
+++ lame-398-2/libmp3lame/lame.c 2009-05-03 15:24:49.000000000 +0200
@@ -1600,10 +1600,17 @@
in_buffer[1] += n_in;
/* update mfbuf[] counters */
gfc->mf_size += n_out;
assert(gfc->mf_size <= MFSIZE);
+
+ /* lame_encode_flush may have set gfc->mf_sample_to_encode to 0
+ * so we have to reinitialize it here when that happened.
+ */
+ if (gfc->mf_samples_to_encode < 1) {
+ gfc->mf_samples_to_encode = ENCDELAY + POSTDELAY;
+ }
gfc->mf_samples_to_encode += n_out;
if (gfc->mf_size >= mf_needed) {
/* encode the frame. */
@@ -1929,10 +1936,14 @@
int end_padding = POSTDELAY;
int pad_out_samples;
int frames_left;
int samples_to_encode = gfc->mf_samples_to_encode;
+ /* Was flush already called? */
+ if (gfc->mf_samples_to_encode < 1) {
+ return 0;
+ }
memset(buffer, 0, sizeof(buffer));
mp3count = 0;
if (gfp->in_samplerate != gfp->out_samplerate) {
/* delay due to resampling; needs to be fixed, if resampling code gets changed */
@@ -1940,35 +1951,38 @@
}
pad_out_samples = gfp->framesize - (samples_to_encode % gfp->framesize);
end_padding += pad_out_samples;
frames_left = (samples_to_encode + pad_out_samples) / gfp->framesize;
- while (frames_left > 0) {
+
+ /* send in a frame of 0 padding until all internal sample buffers are flushed */
+ while (frames_left > 0 && imp3 >= 0) {
int frame_num = gfp->frameNum;
mp3buffer_size_remaining = mp3buffer_size - mp3count;
/* if user specifed buffer size = 0, dont check size */
if (mp3buffer_size == 0)
mp3buffer_size_remaining = 0;
- /* send in a frame of 0 padding until all internal sample buffers
- * are flushed
- */
imp3 = lame_encode_buffer(gfp, buffer[0], buffer[1], 32,
mp3buffer, mp3buffer_size_remaining);
- if (frame_num != gfp->frameNum) {
- --frames_left;
- }
- if (imp3 < 0) {
- /* some type of fatal error */
- return imp3;
- }
mp3buffer += imp3;
mp3count += imp3;
+ frames_left -= (frame_num != gfp->frameNum) ? 1 : 0;
}
+ /* Set gfc->mf_samples_to_encode to 0, so we may detect
+ * and break loops calling it more than once in a row.
+ */
+ gfc->mf_samples_to_encode = 0;
+
+ if (imp3 < 0) {
+ /* some type of fatal error */
+ return imp3;
+ }
+
mp3buffer_size_remaining = mp3buffer_size - mp3count;
/* if user specifed buffer size = 0, dont check size */
if (mp3buffer_size == 0)
mp3buffer_size_remaining = 0;
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