diff --git a/libeplayer3/include/writer.h b/libeplayer3/include/writer.h
index f77b985..e51b901 100644
--- a/libeplayer3/include/writer.h
+++ b/libeplayer3/include/writer.h
@@ -38,7 +38,6 @@ typedef struct WriterCaps_s {
 typedef struct Writer_s {
     int (*reset) ();
     int (*writeData) (WriterAVCallData_t *);
-    int (*writeReverseData) (WriterAVCallData_t *);
     WriterCaps_t *caps;
 } Writer_t;
 
diff --git a/libeplayer3/output/writer/ac3.cpp b/libeplayer3/output/writer/ac3.cpp
index b4547ff..c1b7801 100644
--- a/libeplayer3/output/writer/ac3.cpp
+++ b/libeplayer3/output/writer/ac3.cpp
@@ -130,7 +130,6 @@ static WriterCaps_t caps_ac3 = {
 struct Writer_s WriterAudioAC3 = {
     &reset,
     &writeData,
-    NULL,
     &caps_ac3
 };
 
@@ -144,6 +143,5 @@ static WriterCaps_t caps_eac3 = {
 struct Writer_s WriterAudioEAC3 = {
     &reset,
     &writeData,
-    NULL,
     &caps_eac3
 };
diff --git a/libeplayer3/output/writer/divx.cpp b/libeplayer3/output/writer/divx.cpp
index 568f161..5dc0e66 100644
--- a/libeplayer3/output/writer/divx.cpp
+++ b/libeplayer3/output/writer/divx.cpp
@@ -172,7 +172,6 @@ static WriterCaps_t mpeg4p2_caps = {
 struct Writer_s WriterVideoMSCOMP = {
     &reset,
     &writeData,
-    NULL,
     &mpeg4p2_caps
 };
 
@@ -186,7 +185,6 @@ static WriterCaps_t fourcc_caps = {
 struct Writer_s WriterVideoFOURCC = {
     &reset,
     &writeData,
-    NULL,
     &fourcc_caps
 };
 
@@ -200,6 +198,5 @@ static WriterCaps_t divx_caps = {
 struct Writer_s WriterVideoDIVX = {
     &reset,
     &writeData,
-    NULL,
     &divx_caps
 };
diff --git a/libeplayer3/output/writer/dts.cpp b/libeplayer3/output/writer/dts.cpp
index 787c048..25d38ce 100644
--- a/libeplayer3/output/writer/dts.cpp
+++ b/libeplayer3/output/writer/dts.cpp
@@ -155,6 +155,5 @@ static WriterCaps_t caps = {
 struct Writer_s WriterAudioDTS = {
     &reset,
     &writeData,
-    NULL,
     &caps
 };
diff --git a/libeplayer3/output/writer/flac.cpp b/libeplayer3/output/writer/flac.cpp
index b958dca..75ca276 100644
--- a/libeplayer3/output/writer/flac.cpp
+++ b/libeplayer3/output/writer/flac.cpp
@@ -131,6 +131,5 @@ static WriterCaps_t caps_flac = {
 struct Writer_s WriterAudioFLAC = {
     &reset,
     &writeData,
-    NULL,
     &caps_flac
 };
diff --git a/libeplayer3/output/writer/h263.cpp b/libeplayer3/output/writer/h263.cpp
index d7d2fb4..8c9db77 100644
--- a/libeplayer3/output/writer/h263.cpp
+++ b/libeplayer3/output/writer/h263.cpp
@@ -144,7 +144,6 @@ static WriterCaps_t caps_h263 = {
 struct Writer_s WriterVideoH263 = {
     &reset,
     &writeData,
-    NULL,
     &caps_h263
 };
 
@@ -158,6 +157,5 @@ static WriterCaps_t caps_flv = {
 struct Writer_s WriterVideoFLV = {
     &reset,
     &writeData,
-    NULL,
     &caps_flv
 };
diff --git a/libeplayer3/output/writer/h264.cpp b/libeplayer3/output/writer/h264.cpp
index 61ebc1e..da92dc0 100644
--- a/libeplayer3/output/writer/h264.cpp
+++ b/libeplayer3/output/writer/h264.cpp
@@ -371,30 +371,6 @@ static int writeData(WriterAVCallData_t *call)
     return len;
 }
 
-static int writeReverseData(WriterAVCallData_t *call)
-{
-    h264_printf(10, "\n");
-
-    if (call == NULL) {
-	h264_err("call data is NULL...\n");
-	return 0;
-    }
-
-    h264_printf(10, "VideoPts %lld\n", call->Pts);
-
-    if ((call->packet->data == NULL) || (call->packet->size <= 0)) {
-	h264_err("NULL Data. ignoring...\n");
-	return 0;
-    }
-
-    if (call->fd < 0) {
-	h264_err("file pointer < 0. ignoring ...\n");
-	return 0;
-    }
-
-    return 0;
-}
-
 /* ***************************** */
 /* Writer  Definition            */
 /* ***************************** */
@@ -409,6 +385,5 @@ static WriterCaps_t caps = {
 struct Writer_s WriterVideoH264 = {
     &reset,
     &writeData,
-    &writeReverseData,
     &caps
 };
diff --git a/libeplayer3/output/writer/mp3.cpp b/libeplayer3/output/writer/mp3.cpp
index 6906c31..a5719c2 100644
--- a/libeplayer3/output/writer/mp3.cpp
+++ b/libeplayer3/output/writer/mp3.cpp
@@ -133,7 +133,6 @@ static WriterCaps_t caps_mp3 = {
 struct Writer_s WriterAudioMP3 = {
     &reset,
     &writeData,
-    NULL,
     &caps_mp3
 };
 
@@ -147,7 +146,6 @@ static WriterCaps_t caps_mpegl3 = {
 struct Writer_s WriterAudioMPEGL3 = {
     &reset,
     &writeData,
-    NULL,
     &caps_mpegl3
 };
 
@@ -161,6 +159,5 @@ static WriterCaps_t caps_vorbis = {
 struct Writer_s WriterAudioVORBIS = {
     &reset,
     &writeData,
-    NULL,
     &caps_vorbis
 };
diff --git a/libeplayer3/output/writer/mpeg2.cpp b/libeplayer3/output/writer/mpeg2.cpp
index 9869ba1..e8845e4 100644
--- a/libeplayer3/output/writer/mpeg2.cpp
+++ b/libeplayer3/output/writer/mpeg2.cpp
@@ -147,7 +147,6 @@ static WriterCaps_t caps = {
 struct Writer_s WriterVideoMPEG2 = {
     &reset,
     &writeData,
-    NULL,
     &caps
 };
 
@@ -161,6 +160,5 @@ static WriterCaps_t h264_caps = {
 struct Writer_s WriterVideoMPEGH264 = {
     &reset,
     &writeData,
-    NULL,
     &h264_caps
 };
diff --git a/libeplayer3/output/writer/pcm.cpp b/libeplayer3/output/writer/pcm.cpp
index 38efc06..026a634 100644
--- a/libeplayer3/output/writer/pcm.cpp
+++ b/libeplayer3/output/writer/pcm.cpp
@@ -423,6 +423,5 @@ static WriterCaps_t caps_ipcm = {
 struct Writer_s WriterAudioIPCM = {
 	&reset,
 	&writeData,
-	NULL,
 	&caps_ipcm
 };
diff --git a/libeplayer3/output/writer/vc1.cpp b/libeplayer3/output/writer/vc1.cpp
index a79e740..e8d4d98 100644
--- a/libeplayer3/output/writer/vc1.cpp
+++ b/libeplayer3/output/writer/vc1.cpp
@@ -281,6 +281,5 @@ static WriterCaps_t caps = {
 struct Writer_s WriterVideoVC1 = {
     &reset,
     &writeData,
-    NULL,
     &caps
 };
diff --git a/libeplayer3/output/writer/wmv.cpp b/libeplayer3/output/writer/wmv.cpp
index 1cd5452..1f3ff06 100644
--- a/libeplayer3/output/writer/wmv.cpp
+++ b/libeplayer3/output/writer/wmv.cpp
@@ -255,6 +255,5 @@ static WriterCaps_t caps = {
 struct Writer_s WriterVideoWMV = {
     &reset,
     &writeData,
-    NULL,
     &caps
 };