From f9733b615614a990d3e047f251b4ad1ea48a0534 Mon Sep 17 00:00:00 2001
From: deva <deva>
Date: Fri, 22 Jul 2005 15:59:39 +0000
Subject: *** empty log message ***

---
 src/liblame_wrapper.cc | 58 +++++++++++++++++++++++++++++++++++++++-----------
 1 file changed, 45 insertions(+), 13 deletions(-)

(limited to 'src/liblame_wrapper.cc')

diff --git a/src/liblame_wrapper.cc b/src/liblame_wrapper.cc
index d74233e..f204214 100644
--- a/src/liblame_wrapper.cc
+++ b/src/liblame_wrapper.cc
@@ -31,6 +31,9 @@
 
 /*
  * $Log$
+ * Revision 1.5  2005/07/22 15:59:39  deva
+ * *** empty log message ***
+ *
  * Revision 1.4  2005/07/09 16:23:15  deva
  * Added audio.
  *
@@ -48,6 +51,7 @@
 
 #include <config.h>
 #include "liblame_wrapper.h"
+#include "miav_config.h"
 
 LibLAMEWrapper::LibLAMEWrapper(Info *i)
 {
@@ -59,17 +63,27 @@ LibLAMEWrapper::LibLAMEWrapper(Info *i)
     return;
   }
 
-	lame_set_in_samplerate(gfp, SAMPLE_RATE);
-	lame_set_out_samplerate(gfp, SAMPLE_RATE);
-	lame_set_num_channels(gfp, CHANNELS);
-	// lame 3.91 dies on quality != 5
-	lame_set_quality(gfp, 3);
-	// lame 3.91 doesn't work in mono
-	lame_set_mode(gfp, JOINT_STEREO);
-	lame_set_brate(gfp, 112);
-  lame_set_strict_ISO(gfp, 1);
+	lame_set_in_samplerate(gfp, INPUT_SAMPLE_RATE);
+	lame_set_out_samplerate(gfp, OUTPUT_SAMPLE_RATE);
+
+ 	lame_set_num_channels(gfp, CHANNELS);
   lame_set_num_samples(gfp, SAMPLES);
 
+	lame_set_quality(gfp, config->readInt("mp3_quality"));
+	lame_set_mode(gfp, STEREO);
+	lame_set_brate(gfp, config->readInt("mp3_bitrate"));
+
+  lame_set_strict_ISO(gfp, 0);
+
+  // 1 = write a Xing VBR header frame.
+  lame_set_bWriteVbrTag(gfp, 0);
+
+  // Types of VBR.  default = vbr_off = CBR
+  //  lame_set_VBR(gfp, vbr_rh);
+
+  // VBR quality level.  0=highest  9=lowest
+  //  lame_set_VBR_q(gfp, 6);
+  
   lame_set_copyright(gfp, 0);       // is there a copyright on the encoded data?
   lame_set_original(gfp, 1);        // is the encoded data on the original media?
   lame_set_error_protection(gfp, 0);// add 2 byte CRC protection to each frame?
@@ -79,15 +93,12 @@ LibLAMEWrapper::LibLAMEWrapper(Info *i)
                                     // 2 = adjust padding to satisfy bit rate
   lame_set_extension(gfp, 0);       // private extension bit
 
-  info->info("Lame version %d", lame_get_version(gfp));
 
 	if (lame_init_params(gfp) < 0) {
     info->error("LAME parameter initialization failed.");
     return;
   }
 
-  lame_init_bitstream(gfp);
-
   audio_buffer[0] = new int16_t[AUDIO_BUFFER_SIZE];
   audio_buffer[1] = new int16_t[AUDIO_BUFFER_SIZE];
 
@@ -186,7 +197,28 @@ Frame *LibLAMEWrapper::encode(Frame *dvframe)
     }
   }
 
-  audio_frame->size = val;
+  /**
+   * OPTIONAL:
+   * lame_encode_flush_nogap will flush the internal mp3 buffers and pad
+   * the last frame with ancillary data so it is a complete mp3 frame.
+   * 
+   * 'mp3buf' should be at least 7200 bytes long
+   * to hold all possible emitted data.
+   *
+   * After a call to this routine, the outputed mp3 data is complete, but
+   * you may continue to encode new PCM samples and write future mp3 data
+   * to a different file.  The two mp3 files will play back with no gaps
+   * if they are concatenated together.
+   *
+   * This routine will NOT write id3v1 tags into the bitstream.
+   *
+   * return code = number of bytes output to mp3buf. Can be 0
+   */
+  int flush_sz = lame_encode_flush_nogap(gfp,    // global context handle
+                                         mp3buf + val, // pointer to encoded MP3 stream
+                                         mp3buf_size - val);  // number of valid octets in this stream
+
+  audio_frame->size = val + flush_sz;
 
   return audio_frame;
 }
-- 
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