diff options
Diffstat (limited to 'pjmedia/include')
| -rw-r--r-- | pjmedia/include/pjmedia/mp3_port.h | 14 |
1 files changed, 11 insertions, 3 deletions
diff --git a/pjmedia/include/pjmedia/mp3_port.h b/pjmedia/include/pjmedia/mp3_port.h index 4d980b9c..279ab1ab 100644 --- a/pjmedia/include/pjmedia/mp3_port.h +++ b/pjmedia/include/pjmedia/mp3_port.h @@ -59,13 +59,21 @@ PJ_BEGIN_DECL */ typedef struct pjmedia_mp3_encoder_option { - /** Specify whether variable bit rate should be used (say Yes!). */ + /** Specify whether variable bit rate should be used. Variable bitrate + * would normally produce better quality at the expense of probably + * larger file. + */ pj_bool_t vbr; - /** Target bitrate, in bps. If zero, bitrate will be calculated. */ + /** Target bitrate, in bps. For VBR, if the bitrate is specified, then + * the encoder will ignore the quality settings and instead will try to + * limit the bitrate to the desired value in this setting. + */ unsigned bit_rate; - /** Encoding quality, 0-9, with 0 is the highest. */ + /** Encoding quality, 0-9, with 0 is the highest quality. For VBR, the + * quality setting will only take effect when bit_rate setting is zero. + */ unsigned quality; } pjmedia_mp3_encoder_option; |