main/lame: new aport

An MP3 encoder and graphical frame analyzer
http://lame.sourceforge.net/

1 files changed, 86 insertions, 0 deletions

diff --git a/main/lame/lame-3.98.2-ffmpeg-0.5.patch b/main/lame/lame-3.98.2-ffmpeg-0.5.patch
new file mode 100644
index 000000000..30528c7db
--- /dev/null
+++ b/main/lame/lame-3.98.2-ffmpeg-0.5.patch
@@ -0,0 +1,86 @@
+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;
+