diff --git a/libavformat/g729dec.c b/libavformat/g729dec.c
index ee855d22d9..337681bb0a 100644
--- a/libavformat/g729dec.c
+++ b/libavformat/g729dec.c
@@ -19,13 +19,15 @@
  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  */
 
-#include "avformat.h"
-#include "internal.h"
 #include "libavutil/log.h"
 #include "libavutil/opt.h"
 
+#include "avformat.h"
+#include "internal.h"
+
 typedef struct G729DemuxerContext {
     AVClass *class;
+
     int bit_rate;
 } G729DemuxerContext;
 
@@ -38,49 +40,49 @@ static int g729_read_header(AVFormatContext *s)
     if (!st)
         return AVERROR(ENOMEM);
 
-    st->codecpar->codec_type = AVMEDIA_TYPE_AUDIO;
-    st->codecpar->codec_id = AV_CODEC_ID_G729;
+    st->codecpar->codec_type  = AVMEDIA_TYPE_AUDIO;
+    st->codecpar->codec_id    = AV_CODEC_ID_G729;
     st->codecpar->sample_rate = 8000;
-    st->codecpar->channels = 1;
+    st->codecpar->channels    = 1;
 
-    if (s1 && s1->bit_rate) {
+    if (s1 && s1->bit_rate)
         s->bit_rate = s1->bit_rate;
-    }
 
-    if (s->bit_rate == 0) {
-        av_log(s, AV_LOG_DEBUG, "No bitrate specified. Assuming 8000 b/s\n");
-        s->bit_rate = 8000;
-    }
-
-    if (s->bit_rate == 6400) {
+    switch(s->bit_rate) {
+    case 6400:
         st->codecpar->block_align = 8;
-    } else if (s->bit_rate == 8000) {
+        break;
+    case 8000:
         st->codecpar->block_align = 10;
-    } else {
-        av_log(s, AV_LOG_ERROR, "Only 8000 b/s and 6400 b/s bitrates are supported. Provided: %"PRId64" b/s\n", (int64_t)s->bit_rate);
-        return AVERROR_INVALIDDATA;
+        break;
+    default:
+        av_log(s, AV_LOG_ERROR, "Invalid bit_rate value %d. "
+               "Only 6400 and 8000 b/s are supported.", s->bit_rate);
+        return AVERROR(EINVAL);
     }
 
-    avpriv_set_pts_info(st, st->codecpar->block_align << 3, 1, st->codecpar->sample_rate);
+    avpriv_set_pts_info(st, st->codecpar->block_align << 3, 1,
+                        st->codecpar->sample_rate);
+
     return 0;
 }
+
 static int g729_read_packet(AVFormatContext *s, AVPacket *pkt)
 {
-    int ret;
-
-    ret = av_get_packet(s->pb, pkt, s->streams[0]->codecpar->block_align);
-
-    pkt->stream_index = 0;
+    AVStream *st = s->streams[0];
+    int ret = av_get_packet(s->pb, pkt, st->codecpar->block_align);
     if (ret < 0)
         return ret;
 
-    pkt->dts = pkt->pts = pkt->pos / s->streams[0]->codecpar->block_align;
+    pkt->stream_index = 0;
+    pkt->dts = pkt->pts = pkt->pos / st->codecpar->block_align;
 
-    return ret;
+    return 0;
 }
 
+#define OFFSET(x) offsetof(G729DemuxerContext, x)
 static const AVOption g729_options[] = {
-    { "bit_rate", "", offsetof(G729DemuxerContext, bit_rate), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, AV_OPT_FLAG_DECODING_PARAM },
+    { "bit_rate", "", OFFSET(bit_rate), AV_OPT_TYPE_INT, { .i64 = 8000 }, 0, INT_MAX, AV_OPT_FLAG_DECODING_PARAM },
     { NULL },
 };