lavf: enable av_dlog() in compute_pkt_fields2()

Turns a comment into an av_dlog() instruction, also add a commented
issues.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

libavformat/utils.c

@@ -18,6 +18,9 @@
  * License along with FFmpeg; if not, write to the Free Software
  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  */
+
+/* #define DEBUG */
+
 #include "avformat.h"
 #include "avio_internal.h"
 #include "internal.h"
@@ -2911,7 +2914,8 @@ static int compute_pkt_fields2(AVFormatContext *s, AVStream *st, AVPacket *pkt){
     int delay = FFMAX(st->codec->has_b_frames, !!st->codec->max_b_frames);
     int num, den, frame_size, i;
 
-//    av_log(s, AV_LOG_DEBUG, "av_write_frame: pts:%"PRId64" dts:%"PRId64" cur_dts:%"PRId64" b:%d size:%d st:%d\n", pkt->pts, pkt->dts, st->cur_dts, delay, pkt->size, pkt->stream_index);
+    av_dlog(s, "av_write_frame: pts:%"PRId64" dts:%"PRId64" cur_dts:%"PRId64" b:%d size:%d st:%d\n",
+            pkt->pts, pkt->dts, st->cur_dts, delay, pkt->size, pkt->stream_index);
 
 /*    if(pkt->pts == AV_NOPTS_VALUE && pkt->dts == AV_NOPTS_VALUE)
         return -1;*/