shithub: aacenc

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set default mode to ABR@128

--- a/ChangeLog

+++ b/ChangeLog

@@ -1,3 +1,4 @@

+	* changed default mode to ABR 64kbps/channel

 	* implemented short windows grouping

 	* new huffman coder

 	* SSE quantizer

--- a/frontend/main.c

+++ b/frontend/main.c

@@ -886,11 +886,14 @@

     if (infile->channels >= 6)

         myFormat->useLfe = 1;

     myFormat->allowMidside = useMidSide;

+    if (quantqual > 0)

+    {

+        myFormat->quantqual = quantqual;

+        myFormat->bitRate = 0;

+    }

     if (bitRate)

         myFormat->bitRate = bitRate / infile->channels;

     myFormat->bandWidth = cutOff;

-    if (quantqual > 0)

-        myFormat->quantqual = quantqual;

     myFormat->outputFormat = stream;

     myFormat->inputFormat = FAAC_INPUT_FLOAT;

     if (!faacEncSetConfiguration(hEncoder, myFormat))

@@ -941,9 +944,13 @@

     quantqual = myFormat->quantqual;

     bitRate = myFormat->bitRate;

     if (bitRate)

-        fprintf(stderr, "Average bitrate: %d kbps\n",

-                (bitRate + 500) / 1000 * infile->channels);

-    fprintf(stderr, "Quantization quality: %ld\n", quantqual);

+    {

+        fprintf(stderr, "Initial quantization quality: %ld\n", quantqual);

+        fprintf(stderr, "Average bitrate: %d kbps/channel\n",

+                (bitRate + 500) / 1000);

+    }

+    else

+        fprintf(stderr, "Quantization quality: %ld\n", quantqual);

     fprintf(stderr, "Bandwidth: %d Hz\n", cutOff);

     fprintf(stderr, "Object type: ");

     switch (objectType)

--- a/libfaac/frame.c

+++ b/libfaac/frame.c

@@ -52,7 +52,10 @@

 static SR_INFO srInfo[12+1];

 // default bandwidth/samplerate ratio

-static const double bwfac = 0.42;

+static const struct {

+    double fac;

+    double freq;

+} g_bw = {0.42, 18000};

 int FAACAPI faacEncGetVersion( char **faac_id_string,

 			      				char **faac_copyright_string)

@@ -154,7 +157,10 @@

     if (config->bitRate && !config->bandWidth)

     {

-        config->bandWidth = (double)config->bitRate * hEncoder->sampleRate * bwfac / 60000.0;

+        config->bandWidth = (double)config->bitRate * hEncoder->sampleRate * g_bw.fac / 60000.0;

+        if (config->bandWidth > g_bw.freq)

+            config->bandWidth = g_bw.freq;

+

         if (!config->quantqual)

         {

             config->quantqual = (double)config->bitRate * hEncoder->numChannels / 1280;

@@ -170,7 +176,7 @@

     if (!config->bandWidth)

     {

-        config->bandWidth = bwfac * hEncoder->sampleRate;

+        config->bandWidth = g_bw.fac * hEncoder->sampleRate;

     }

     hEncoder->config.bandWidth = config->bandWidth;

@@ -253,8 +259,8 @@

     hEncoder->config.allowMidside = 1;

     hEncoder->config.useLfe = 1;

     hEncoder->config.useTns = 0;

-    hEncoder->config.bitRate = 0; /* default bitrate / channel */

-    hEncoder->config.bandWidth = bwfac * hEncoder->sampleRate;

+    hEncoder->config.bitRate = 64000;

+    hEncoder->config.bandWidth = g_bw.fac * hEncoder->sampleRate;

     hEncoder->config.quantqual = 0;

     hEncoder->config.psymodellist = (psymodellist_t *)psymodellist;

     hEncoder->config.psymodelidx = 0;