diff --git a/libavformat/avidec.c b/libavformat/avidec.c
index b07dabd38c..0439c9c94c 100644
--- a/libavformat/avidec.c
+++ b/libavformat/avidec.c
@@ -1238,17 +1238,6 @@ resync:
 //                pkt->dts += ast->start;
             if (ast->sample_size)
                 pkt->dts /= ast->sample_size;
-            av_log(s, AV_LOG_TRACE,
-                    "dts:%"PRId64" offset:%"PRId64" %d/%d smpl_siz:%d "
-                    "base:%d st:%d size:%d\n",
-                    pkt->dts,
-                    ast->frame_offset,
-                    ast->scale,
-                    ast->rate,
-                    ast->sample_size,
-                    AV_TIME_BASE,
-                    avi->stream_index,
-                    size);
             pkt->stream_index = avi->stream_index;
 
             if (st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO) {
@@ -1453,12 +1442,6 @@ static int avi_load_index(AVFormatContext *s)
             break;
         tag  = avio_rl32(pb);
         size = avio_rl32(pb);
-        av_log(s, AV_LOG_TRACE, "tag=%c%c%c%c size=0x%x\n",
-                 tag        & 0xff,
-                (tag >>  8) & 0xff,
-                (tag >> 16) & 0xff,
-                (tag >> 24) & 0xff,
-                size);
 
         if (tag == MKTAG('i', 'd', 'x', '1') &&
             avi_read_idx1(s, size) >= 0) {
diff --git a/libavformat/ipmovie.c b/libavformat/ipmovie.c
index b719fed2b9..5d789ffd54 100644
--- a/libavformat/ipmovie.c
+++ b/libavformat/ipmovie.c
@@ -332,9 +332,6 @@ static int process_ipmovie_chunk(IPMVEContext *s, AVIOContext *pb,
                 break;
             }
             s->frame_pts_inc = ((uint64_t)AV_RL32(&scratch[0])) * AV_RL16(&scratch[4]);
-            av_log(NULL, AV_LOG_TRACE, "  %.2f frames/second (timer div = %d, subdiv = %d)\n",
-                    1000000.0 / s->frame_pts_inc, AV_RL32(&scratch[0]),
-                    AV_RL16(&scratch[4]));
             break;
 
         case OPCODE_INIT_AUDIO_BUFFERS:
diff --git a/libavformat/mov.c b/libavformat/mov.c
index fee9f36382..34ab205d9c 100644
--- a/libavformat/mov.c
+++ b/libavformat/mov.c
@@ -427,9 +427,6 @@ static int mov_read_udta_string(MOVContext *c, AVIOContext *pb, MOVAtom atom)
             av_dict_set(&c->fc->metadata, key2, str, 0);
         }
     }
-    av_log(c->fc, AV_LOG_TRACE, "lang \"%3s\" ", language);
-    av_log(c->fc, AV_LOG_TRACE, "tag \"%s\" value \"%s\" atom \"%.4s\" %d %"PRId64"\n",
-            key, str, (char*)&atom.type, str_size_alloc, atom.size);
 
     av_freep(&str);
     return 0;
@@ -505,7 +502,6 @@ static int mov_read_dref(MOVContext *c, AVIOContext *pb, MOVAtom atom)
 
         dref->type = avio_rl32(pb);
         avio_rb32(pb); // version + flags
-        av_log(c->fc, AV_LOG_TRACE, "type %.4s size %d\n", (char*)&dref->type, size);
 
         if (dref->type == MKTAG('a','l','i','s') && size > 150) {
             /* macintosh alias record */
@@ -2010,7 +2006,6 @@ static int mov_read_stps(MOVContext *c, AVIOContext *pb, MOVAtom atom)
 
     for (i = 0; i < entries && !pb->eof_reached; i++) {
         sc->stps_data[i] = avio_rb32(pb);
-        //av_log(c->fc, AV_LOG_TRACE, "stps %d\n", sc->stps_data[i]);
     }
 
     sc->stps_count = i;
@@ -2053,7 +2048,6 @@ static int mov_read_stss(MOVContext *c, AVIOContext *pb, MOVAtom atom)
 
     for (i = 0; i < entries && !pb->eof_reached; i++) {
         sc->keyframes[i] = avio_rb32(pb);
-        //av_log(c->fc, AV_LOG_TRACE, "keyframes[]=%d\n", sc->keyframes[i]);
     }
 
     sc->keyframe_count = i;
diff --git a/libavformat/nsvdec.c b/libavformat/nsvdec.c
index 78e34d130f..dc81cb64a2 100644
--- a/libavformat/nsvdec.c
+++ b/libavformat/nsvdec.c
@@ -212,13 +212,6 @@ static const AVCodecTag nsv_codec_audio_tags[] = {
 //static int nsv_load_index(AVFormatContext *s);
 static int nsv_read_chunk(AVFormatContext *s, int fill_header);
 
-#define print_tag(str, tag, size)       \
-    av_log(NULL, AV_LOG_TRACE, "%s: tag=%c%c%c%c\n", \
-            str, tag & 0xff,            \
-            (tag >> 8) & 0xff,          \
-            (tag >> 16) & 0xff,         \
-            (tag >> 24) & 0xff);
-
 /* try to find something we recognize, and set the state accordingly */
 static int nsv_resync(AVFormatContext *s)
 {
@@ -405,8 +398,6 @@ static int nsv_parse_NSVs_header(AVFormatContext *s)
     nsv->avsync = avio_rl16(pb);
     nsv->framerate = framerate;
 
-    print_tag("NSV NSVs vtag", vtag, 0);
-    print_tag("NSV NSVs atag", atag, 0);
     av_log(s, AV_LOG_TRACE, "NSV NSVs vsize %dx%d\n", vwidth, vheight);
 
     /* XXX change to ap != NULL ? */
@@ -558,12 +549,6 @@ null_chunk_retry:
         uint32_t av_unused auxtag;
         auxsize = avio_rl16(pb);
         auxtag = avio_rl32(pb);
-        av_log(s, AV_LOG_TRACE, "NSV aux data: '%c%c%c%c', %d bytes\n",
-              (auxtag & 0x0ff),
-              ((auxtag >> 8) & 0x0ff),
-              ((auxtag >> 16) & 0x0ff),
-              ((auxtag >> 24) & 0x0ff),
-              auxsize);
         avio_skip(pb, auxsize);
         vsize -= auxsize + sizeof(uint16_t) + sizeof(uint32_t); /* that's becoming brain-dead */
     }