codec_builtin.c: Adjust some of the quality scores to reflect reality.

Among the lower-quality voice codecs, some of the quality scores did
not make sense relative to each other.

For instance, quality-wise, G.729 > G.723 > PLC10.
However, current scores do not uphold these relationships.

Tweak the scores slightly to reflect more accurate relationships.

Resolves: #1501

diff --git a/main/codec_builtin.c b/main/codec_builtin.c
index 02c9f2e79ac0130ded86e14c5ed50331d8fea248..0c02c65a970c86797a1fb4e69c04d554de40ad31 100644 (file)
--- a/main/codec_builtin.c
+++ b/main/codec_builtin.c
@@ -216,7 +216,7 @@ static struct ast_codec gsm = {
        .samples_count = gsm_samples,
        .get_length = gsm_length,
        .smooth = 1,
-       .quality = 60,
+       .quality = 40,
 };
 
 static int g726_samples(struct ast_frame *frame)
@@ -449,7 +449,7 @@ static struct ast_codec lpc10 = {
        .minimum_bytes = 7,
        .samples_count = lpc10_samples,
        .smooth = 1,
-       .quality = 25,
+       .quality = 8,
 };
 
 static int g729_samples(struct ast_frame *frame)
@@ -475,7 +475,7 @@ static struct ast_codec g729a = {
        .get_length = g729_length,
        .smooth = 1,
        .smoother_flags = AST_SMOOTHER_FLAG_G729,
-       .quality = 20,
+       .quality = 45,
 };
 
 static unsigned char get_n_bits_at(unsigned char *data, int n, int bit)
@@ -662,7 +662,7 @@ static struct ast_codec ilbc = {
        .minimum_bytes = 38,
        .samples_count = ilbc_samples,
        .smooth = 0,
-       .quality = 45,
+       .quality = 35,
 };
 
 static struct ast_codec g722 = {
@@ -777,7 +777,7 @@ static struct ast_codec opus = {
        .default_ms = 20,
        .samples_count = opus_samples,
        .minimum_bytes = 10,
-       .quality = 50,
+       .quality = 75,
 };
 
 static struct ast_codec jpeg = {