@@ -310,8 +310,8 @@ static int ape_read_header(AVFormatContext * s, AVFormatParameters * ap)

     st->codec->frame_size      = MAC_SUBFRAME_SIZE;

     st->nb_frames = ape->totalframes;

-    s->start_time = 0;

-    s->duration   = (int64_t) total_blocks * AV_TIME_BASE / ape->samplerate;

+    st->start_time = 0;

+    st->duration  = total_blocks / MAC_SUBFRAME_SIZE;

     av_set_pts_info(st, 64, MAC_SUBFRAME_SIZE, ape->samplerate);

     st->codec->extradata = av_malloc(APE_EXTRADATA_SIZE);

@@ -115,8 +115,8 @@ static int mpc_read_header(AVFormatContext *s, AVFormatParameters *ap)

     st->codec->sample_rate = mpc_rate[st->codec->extradata[2] & 3];

     av_set_pts_info(st, 32, MPC_FRAMESIZE, st->codec->sample_rate);

     /* scan for seekpoints */

-    s->start_time = 0;

-    s->duration = (int64_t)c->fcount * MPC_FRAMESIZE * AV_TIME_BASE / st->codec->sample_rate;

+    st->start_time = 0;

+    st->duration = c->fcount;

     /* try to read APE tags */

     if (!url_is_streamed(s->pb)) {

@@ -168,8 +168,8 @@ static int wv_read_header(AVFormatContext *s,

     st->codec->sample_rate = wc->rate;

     st->codec->bits_per_coded_sample = wc->bpp;

     av_set_pts_info(st, 64, 1, wc->rate);

-    s->start_time = 0;

-    s->duration = (int64_t)wc->samples * AV_TIME_BASE / st->codec->sample_rate;

+    st->start_time = 0;

+    st->duration = wc->samples;

     if(!url_is_streamed(s->pb)) {

         int64_t cur = url_ftell(s->pb);