avformat/mxfenc: Only store user comment related tags when needed

Also support disabling them as they seem to cause problems to some
Users. They are also not allowed in IRT D-10 thus the default for
mxf_d10 is not to write them

This also decreases the filesize when no user comment are stored

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

8 files changed, 108 insertions, 72 deletions

diff --git a/doc/muxers.texi b/doc/muxers.texi
index 06483fa4ae..b6d88231ac 100644
--- a/doc/muxers.texi
+++ b/doc/muxers.texi
@@ -874,6 +874,21 @@ ffmpeg -i file.mpg -c copy \
      -y out.ts
 @end example
 
+@section mxf, mxf_d10
+
+MXF muxer.
+
+@subsection Options
+
+The muxer options are:
+
+@table @option
+@item store_user_comments @var{bool}
+Set if user comments should be stored if available or never.
+IRT D-10 does not allow user comments. The default is thus to write them for
+mxf but not for mxf_d10
+@end table
+
 @section null
 
 Null muxer.
diff --git a/libavformat/mxfenc.c b/libavformat/mxfenc.c
index f2e0e4d7e4..e4e42720fe 100644
--- a/libavformat/mxfenc.c
+++ b/libavformat/mxfenc.c
@@ -21,7 +21,8 @@
  */
 
 /*
- * signal_standard, color_siting and klv_fill_key version fixes sponsored by NOA GmbH
+ * signal_standard, color_siting, store_user_comments and klv_fill_key version
+ * fixes sponsored by NOA GmbH
  */
 
 /*
@@ -323,6 +324,7 @@ typedef struct MXFContext {
     int signal_standard;
     uint32_t tagged_value_count;
     AVRational audio_edit_rate;
+    int store_user_comments;
 } MXFContext;
 
 static const uint8_t uuid_base[]            = { 0xAD,0xAB,0x44,0x24,0x2f,0x25,0x4d,0xc7,0x92,0xff,0x29,0xbd };
@@ -380,7 +382,6 @@ static const MXFLocalTagPair mxf_local_tag_batch[] = {
     { 0x4404, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x01,0x10,0x02,0x05,0x00,0x00}}, /* Package Modified Date */
     { 0x4402, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x01,0x03,0x03,0x02,0x01,0x00,0x00,0x00}}, /* Package Name */
     { 0x4403, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x06,0x05,0x00,0x00}}, /* Tracks Strong reference array */
-    { 0x4406, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x03,0x02,0x01,0x02,0x0C,0x00,0x00,0x00}}, /* User Comments */
     { 0x4701, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x02,0x03,0x00,0x00}}, /* Descriptor */
     // Track
     { 0x4801, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x01,0x07,0x01,0x01,0x00,0x00,0x00,0x00}}, /* Track ID */
@@ -400,9 +401,6 @@ static const MXFLocalTagPair mxf_local_tag_batch[] = {
     { 0x1501, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x01,0x03,0x01,0x05,0x00,0x00}}, /* Start Time Code */
     { 0x1502, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x04,0x01,0x01,0x02,0x06,0x00,0x00}}, /* Rounded Time Code Base */
     { 0x1503, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x04,0x01,0x01,0x05,0x00,0x00,0x00}}, /* Drop Frame */
-    // Tagged Value
-    { 0x5001, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x03,0x02,0x01,0x02,0x09,0x01,0x00,0x00}}, /* Name */
-    { 0x5003, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x03,0x02,0x01,0x02,0x0A,0x01,0x00,0x00}}, /* Value */
     // File Descriptor
     { 0x3F01, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x04,0x06,0x01,0x01,0x04,0x06,0x0B,0x00,0x00}}, /* Sub Descriptors reference array */
     { 0x3006, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x06,0x01,0x01,0x03,0x05,0x00,0x00,0x00}}, /* Linked Track ID */
@@ -448,6 +446,12 @@ static const MXFLocalTagPair mxf_local_tag_batch[] = {
     { 0x3D0A, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x02,0x03,0x02,0x01,0x00,0x00,0x00}}, /* Block Align */
 };
 
+static const MXFLocalTagPair mxf_user_comments_local_tag[] = {
+    { 0x4406, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x03,0x02,0x01,0x02,0x0C,0x00,0x00,0x00}}, /* User Comments */
+    { 0x5001, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x03,0x02,0x01,0x02,0x09,0x01,0x00,0x00}}, /* Name */
+    { 0x5003, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x03,0x02,0x01,0x02,0x0A,0x01,0x00,0x00}}, /* Value */
+};
+
 static void mxf_write_uuid(AVIOContext *pb, enum MXFMetadataSetType type, int value)
 {
     avio_write(pb, uuid_base, 12);
@@ -525,10 +529,12 @@ static int mxf_get_essence_container_ul_index(enum AVCodecID id)
 
 static void mxf_write_primer_pack(AVFormatContext *s)
 {
+    MXFContext *mxf = s->priv_data;
     AVIOContext *pb = s->pb;
     int local_tag_number, i = 0;
 
     local_tag_number = FF_ARRAY_ELEMS(mxf_local_tag_batch);
+    local_tag_number += mxf->store_user_comments * FF_ARRAY_ELEMS(mxf_user_comments_local_tag);
 
     avio_write(pb, primer_pack_key, 16);
     klv_encode_ber_length(pb, local_tag_number * 18 + 8);
@@ -536,10 +542,15 @@ static void mxf_write_primer_pack(AVFormatContext *s)
     avio_wb32(pb, local_tag_number); // local_tag num
     avio_wb32(pb, 18); // item size, always 18 according to the specs
 
-    for (i = 0; i < local_tag_number; i++) {
+    for (i = 0; i < FF_ARRAY_ELEMS(mxf_local_tag_batch); i++) {
         avio_wb16(pb, mxf_local_tag_batch[i].local_tag);
         avio_write(pb, mxf_local_tag_batch[i].uid, 16);
     }
+    if (mxf->store_user_comments)
+        for (i = 0; i < FF_ARRAY_ELEMS(mxf_user_comments_local_tag); i++) {
+            avio_wb16(pb, mxf_user_comments_local_tag[i].local_tag);
+            avio_write(pb, mxf_user_comments_local_tag[i].uid, 16);
+        }
 }
 
 static void mxf_write_local_tag(AVIOContext *pb, int size, int tag)
@@ -1253,14 +1264,15 @@ static void mxf_write_package(AVFormatContext *s, enum MXFMetadataSetType type,
     int user_comment_count = 0;
 
     if (type == MaterialPackage) {
-        user_comment_count = mxf_write_user_comments(s, s->metadata);
+        if (mxf->store_user_comments)
+            user_comment_count = mxf_write_user_comments(s, s->metadata);
         mxf_write_metadata_key(pb, 0x013600);
         PRINT_KEY(s, "Material Package key", pb->buf_ptr - 16);
-        klv_encode_ber_length(pb, 104 + name_size + (16*track_count) + (16*user_comment_count));
+        klv_encode_ber_length(pb, 92 + name_size + (16*track_count) + (16*user_comment_count) + 12*mxf->store_user_comments);
     } else {
         mxf_write_metadata_key(pb, 0x013700);
         PRINT_KEY(s, "Source Package key", pb->buf_ptr - 16);
-        klv_encode_ber_length(pb, 124 + name_size + (16*track_count)); // 20 bytes length for descriptor reference
+        klv_encode_ber_length(pb, 112 + name_size + (16*track_count) + 12*mxf->store_user_comments); // 20 bytes length for descriptor reference
     }
 
     // write uid
@@ -1295,10 +1307,12 @@ static void mxf_write_package(AVFormatContext *s, enum MXFMetadataSetType type,
         mxf_write_uuid(pb, type == MaterialPackage ? Track : Track + TypeBottom, i);
 
     // write user comment refs
-    mxf_write_local_tag(pb, user_comment_count*16 + 8, 0x4406);
-    mxf_write_refs_count(pb, user_comment_count);
-    for (i = 0; i < user_comment_count; i++)
-         mxf_write_uuid(pb, TaggedValue, mxf->tagged_value_count - user_comment_count + i);
+    if (mxf->store_user_comments) {
+        mxf_write_local_tag(pb, user_comment_count*16 + 8, 0x4406);
+        mxf_write_refs_count(pb, user_comment_count);
+        for (i = 0; i < user_comment_count; i++)
+            mxf_write_uuid(pb, TaggedValue, mxf->tagged_value_count - user_comment_count + i);
+    }
 
     // write multiple descriptor reference
     if (type == SourcePackage) {
@@ -2038,6 +2052,9 @@ static int mxf_write_header(AVFormatContext *s)
         return -1;
     }
 
+    if (!av_dict_get(s->metadata, "comment_", NULL, AV_DICT_IGNORE_SUFFIX))
+        mxf->store_user_comments = 0;
+
     for (i = 0; i < s->nb_streams; i++) {
         AVStream *st = s->streams[i];
         MXFStreamContext *sc = av_mallocz(sizeof(*sc));
@@ -2656,6 +2673,8 @@ static int mxf_interleave(AVFormatContext *s, AVPacket *out, AVPacket *pkt, int
 
 static const AVOption mxf_options[] = {
     MXF_COMMON_OPTIONS
+    { "store_user_comments", "",
+      offsetof(MXFContext, store_user_comments), AV_OPT_TYPE_BOOL, {.i64 = 1}, 0, 1, AV_OPT_FLAG_ENCODING_PARAM},
     { NULL },
 };
 
@@ -2670,6 +2689,8 @@ static const AVOption d10_options[] = {
     { "d10_channelcount", "Force/set channelcount in generic sound essence descriptor",
       offsetof(MXFContext, channel_count), AV_OPT_TYPE_INT, {.i64 = -1}, -1, 8, AV_OPT_FLAG_ENCODING_PARAM},
     MXF_COMMON_OPTIONS
+    { "store_user_comments", "",
+      offsetof(MXFContext, store_user_comments), AV_OPT_TYPE_BOOL, {.i64 = 0}, 0, 1, AV_OPT_FLAG_ENCODING_PARAM},
     { NULL },
 };
 
diff --git a/tests/ref/lavf/mxf b/tests/ref/lavf/mxf
index 71f6cf848b..bc113f35ae 100644
--- a/tests/ref/lavf/mxf
+++ b/tests/ref/lavf/mxf
@@ -1,9 +1,9 @@
-030961ae56ab1c264390fd5ef0a95069 *./tests/data/lavf/lavf.mxf
-525881 ./tests/data/lavf/lavf.mxf
+6d00bf68ec95d0aac959defccdb0190e *./tests/data/lavf/lavf.mxf
+525369 ./tests/data/lavf/lavf.mxf
 ./tests/data/lavf/lavf.mxf CRC=0xdbfff6f1
-b90dc91dee50a24c8b20a08a063f501a *./tests/data/lavf/lavf.mxf
-561209 ./tests/data/lavf/lavf.mxf
+0bbdd13de78db8ab9314f083b7da0f30 *./tests/data/lavf/lavf.mxf
+560697 ./tests/data/lavf/lavf.mxf
 ./tests/data/lavf/lavf.mxf CRC=0x11a6178e
-a0cfffed795686127061feae8cde07d1 *./tests/data/lavf/lavf.mxf
-525881 ./tests/data/lavf/lavf.mxf
+462f95f19b3e0fd119a204a96eb6f424 *./tests/data/lavf/lavf.mxf
+525369 ./tests/data/lavf/lavf.mxf
 ./tests/data/lavf/lavf.mxf CRC=0xdbfff6f1
diff --git a/tests/ref/lavf/mxf_d10 b/tests/ref/lavf/mxf_d10
index 8b71d72fe9..134db876d5 100644
--- a/tests/ref/lavf/mxf_d10
+++ b/tests/ref/lavf/mxf_d10
@@ -1,3 +1,3 @@
-9b5bad981e08fa3eaeb9de818762218c *./tests/data/lavf/lavf.mxf_d10
+73c0cb416548c33d0651c59519a8f7e2 *./tests/data/lavf/lavf.mxf_d10
 5330989 ./tests/data/lavf/lavf.mxf_d10
 ./tests/data/lavf/lavf.mxf_d10 CRC=0x6c74d488
diff --git a/tests/ref/lavf/mxf_opatom b/tests/ref/lavf/mxf_opatom
index 8a732faf46..8dfc55a824 100644
--- a/tests/ref/lavf/mxf_opatom
+++ b/tests/ref/lavf/mxf_opatom
@@ -1,3 +1,3 @@
-6cab8f702746ca7184c608b4c06a224b *./tests/data/lavf/lavf.mxf_opatom
+2205907020248f73876eaad745d2f5b5 *./tests/data/lavf/lavf.mxf_opatom
 4717113 ./tests/data/lavf/lavf.mxf_opatom
 ./tests/data/lavf/lavf.mxf_opatom CRC=0xf55aa22a
diff --git a/tests/ref/lavf/mxf_opatom_audio b/tests/ref/lavf/mxf_opatom_audio
index 8d558c6e2a..953df9094f 100644
--- a/tests/ref/lavf/mxf_opatom_audio
+++ b/tests/ref/lavf/mxf_opatom_audio
@@ -1,3 +1,3 @@
-6c6064f154688e455ec494d425b525f5 *./tests/data/lavf/lavf.mxf_opatom_audio
-102457 ./tests/data/lavf/lavf.mxf_opatom_audio
+d4ad5a0faf410a9d9e99b3328143e89d *./tests/data/lavf/lavf.mxf_opatom_audio
+101945 ./tests/data/lavf/lavf.mxf_opatom_audio
 ./tests/data/lavf/lavf.mxf_opatom_audio CRC=0xd155c6ff
diff --git a/tests/ref/seek/lavf-mxf b/tests/ref/seek/lavf-mxf
index ea0e0b6995..93d419722b 100644
--- a/tests/ref/seek/lavf-mxf
+++ b/tests/ref/seek/lavf-mxf
@@ -1,48 +1,48 @@
-ret: 0         st: 0 flags:1 dts:-0.040000 pts: 0.000000 pos:   6656 size: 24801
+ret: 0         st: 0 flags:1 dts:-0.040000 pts: 0.000000 pos:   6144 size: 24801
 ret: 0         st:-1 flags:0  ts:-1.000000
-ret: 0         st: 0 flags:1 dts:-0.040000 pts: 0.000000 pos:   6656 size: 24801
+ret: 0         st: 0 flags:1 dts:-0.040000 pts: 0.000000 pos:   6144 size: 24801
 ret: 0         st:-1 flags:1  ts: 1.894167
-ret: 0         st: 0 flags:1 dts: 0.840000 pts: 0.960000 pos: 460800 size: 24711
+ret: 0         st: 0 flags:1 dts: 0.840000 pts: 0.960000 pos: 460288 size: 24711
 ret: 0         st: 0 flags:0  ts: 0.800000
-ret: 0         st: 0 flags:1 dts: 0.840000 pts: 0.960000 pos: 460800 size: 24711
+ret: 0         st: 0 flags:1 dts: 0.840000 pts: 0.960000 pos: 460288 size: 24711
 ret: 0         st: 0 flags:1  ts:-0.320000
-ret: 0         st: 0 flags:1 dts:-0.040000 pts: 0.000000 pos:   6656 size: 24801
+ret: 0         st: 0 flags:1 dts:-0.040000 pts: 0.000000 pos:   6144 size: 24801
 ret:-1         st: 1 flags:0  ts: 2.576667
 ret: 0         st: 1 flags:1  ts: 1.470833
-ret: 0         st: 0 flags:1 dts: 0.840000 pts: 0.960000 pos: 460800 size: 24711
+ret: 0         st: 0 flags:1 dts: 0.840000 pts: 0.960000 pos: 460288 size: 24711
 ret: 0         st:-1 flags:0  ts: 0.365002
-ret: 0         st: 0 flags:1 dts: 0.360000 pts: 0.480000 pos: 211968 size: 24786
+ret: 0         st: 0 flags:1 dts: 0.360000 pts: 0.480000 pos: 211456 size: 24786
 ret: 0         st:-1 flags:1  ts:-0.740831
-ret: 0         st: 0 flags:1 dts:-0.040000 pts: 0.000000 pos:   6656 size: 24801
+ret: 0         st: 0 flags:1 dts:-0.040000 pts: 0.000000 pos:   6144 size: 24801
 ret:-1         st: 0 flags:0  ts: 2.160000
 ret: 0         st: 0 flags:1  ts: 1.040000
-ret: 0         st: 0 flags:1 dts: 0.840000 pts: 0.960000 pos: 460800 size: 24711
+ret: 0         st: 0 flags:1 dts: 0.840000 pts: 0.960000 pos: 460288 size: 24711
 ret: 0         st: 1 flags:0  ts:-0.058333
-ret: 0         st: 0 flags:1 dts:-0.040000 pts: 0.000000 pos:   6656 size: 24801
+ret: 0         st: 0 flags:1 dts:-0.040000 pts: 0.000000 pos:   6144 size: 24801
 ret: 0         st: 1 flags:1  ts: 2.835833
-ret: 0         st: 0 flags:1 dts: 0.840000 pts: 0.960000 pos: 460800 size: 24711
+ret: 0         st: 0 flags:1 dts: 0.840000 pts: 0.960000 pos: 460288 size: 24711
 ret:-1         st:-1 flags:0  ts: 1.730004
 ret: 0         st:-1 flags:1  ts: 0.624171
-ret: 0         st: 0 flags:1 dts: 0.360000 pts: 0.480000 pos: 211968 size: 24786
+ret: 0         st: 0 flags:1 dts: 0.360000 pts: 0.480000 pos: 211456 size: 24786
 ret: 0         st: 0 flags:0  ts:-0.480000
-ret: 0         st: 0 flags:1 dts:-0.040000 pts: 0.000000 pos:   6656 size: 24801
+ret: 0         st: 0 flags:1 dts:-0.040000 pts: 0.000000 pos:   6144 size: 24801
 ret: 0         st: 0 flags:1  ts: 2.400000
-ret: 0         st: 0 flags:1 dts: 0.840000 pts: 0.960000 pos: 460800 size: 24711
+ret: 0         st: 0 flags:1 dts: 0.840000 pts: 0.960000 pos: 460288 size: 24711
 ret:-1         st: 1 flags:0  ts: 1.306667
 ret: 0         st: 1 flags:1  ts: 0.200833
-ret: 0         st: 0 flags:1 dts:-0.040000 pts: 0.000000 pos:   6656 size: 24801
+ret: 0         st: 0 flags:1 dts:-0.040000 pts: 0.000000 pos:   6144 size: 24801
 ret: 0         st:-1 flags:0  ts:-0.904994
-ret: 0         st: 0 flags:1 dts:-0.040000 pts: 0.000000 pos:   6656 size: 24801
+ret: 0         st: 0 flags:1 dts:-0.040000 pts: 0.000000 pos:   6144 size: 24801
 ret: 0         st:-1 flags:1  ts: 1.989173
-ret: 0         st: 0 flags:1 dts: 0.840000 pts: 0.960000 pos: 460800 size: 24711
+ret: 0         st: 0 flags:1 dts: 0.840000 pts: 0.960000 pos: 460288 size: 24711
 ret: 0         st: 0 flags:0  ts: 0.880000
-ret: 0         st: 0 flags:1 dts: 0.840000 pts: 0.960000 pos: 460800 size: 24711
+ret: 0         st: 0 flags:1 dts: 0.840000 pts: 0.960000 pos: 460288 size: 24711
 ret: 0         st: 0 flags:1  ts:-0.240000
-ret: 0         st: 0 flags:1 dts:-0.040000 pts: 0.000000 pos:   6656 size: 24801
+ret: 0         st: 0 flags:1 dts:-0.040000 pts: 0.000000 pos:   6144 size: 24801
 ret:-1         st: 1 flags:0  ts: 2.671667
 ret: 0         st: 1 flags:1  ts: 1.565833
-ret: 0         st: 0 flags:1 dts: 0.840000 pts: 0.960000 pos: 460800 size: 24711
+ret: 0         st: 0 flags:1 dts: 0.840000 pts: 0.960000 pos: 460288 size: 24711
 ret: 0         st:-1 flags:0  ts: 0.460008
-ret: 0         st: 0 flags:1 dts: 0.360000 pts: 0.480000 pos: 211968 size: 24786
+ret: 0         st: 0 flags:1 dts: 0.360000 pts: 0.480000 pos: 211456 size: 24786
 ret: 0         st:-1 flags:1  ts:-0.645825
-ret: 0         st: 0 flags:1 dts:-0.040000 pts: 0.000000 pos:   6656 size: 24801
+ret: 0         st: 0 flags:1 dts:-0.040000 pts: 0.000000 pos:   6144 size: 24801
diff --git a/tests/ref/seek/lavf-mxf_opatom_audio b/tests/ref/seek/lavf-mxf_opatom_audio
index 12d4644dc2..2d1a7cc350 100644
--- a/tests/ref/seek/lavf-mxf_opatom_audio
+++ b/tests/ref/seek/lavf-mxf_opatom_audio
@@ -1,53 +1,53 @@
-ret: 0         st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos:   5145 size:  3840
+ret: 0         st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos:   4633 size:  3840
 ret: 0         st:-1 flags:0  ts:-1.000000
-ret: 0         st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos:   5145 size:  3840
+ret: 0         st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos:   4633 size:  3840
 ret: 0         st:-1 flags:1  ts: 1.894167
-ret: 0         st: 0 flags:1 dts: 0.999979 pts: 0.999979 pos: 101143 size:     2
+ret: 0         st: 0 flags:1 dts: 0.999979 pts: 0.999979 pos: 100631 size:     2
 ret: 0         st: 0 flags:0  ts: 0.788333
-ret: 0         st: 0 flags:1 dts: 0.788333 pts: 0.788333 pos:  80825 size:  3840
+ret: 0         st: 0 flags:1 dts: 0.788333 pts: 0.788333 pos:  80313 size:  3840
 ret: 0         st: 0 flags:1  ts:-0.317500
-ret: 0         st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos:   5145 size:  3840
+ret: 0         st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos:   4633 size:  3840
 ret: 0         st:-1 flags:0  ts: 2.576668
-ret: 0         st: 0 flags:1 dts: 0.999979 pts: 0.999979 pos: 101143 size:     2
+ret: 0         st: 0 flags:1 dts: 0.999979 pts: 0.999979 pos: 100631 size:     2
 ret: 0         st:-1 flags:1  ts: 1.470835
-ret: 0         st: 0 flags:1 dts: 0.999979 pts: 0.999979 pos: 101143 size:     2
+ret: 0         st: 0 flags:1 dts: 0.999979 pts: 0.999979 pos: 100631 size:     2
 ret: 0         st: 0 flags:0  ts: 0.365000
-ret: 0         st: 0 flags:1 dts: 0.365000 pts: 0.365000 pos:  40185 size:  3840
+ret: 0         st: 0 flags:1 dts: 0.365000 pts: 0.365000 pos:  39673 size:  3840
 ret: 0         st: 0 flags:1  ts:-0.740833
-ret: 0         st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos:   5145 size:  3840
+ret: 0         st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos:   4633 size:  3840
 ret: 0         st:-1 flags:0  ts: 2.153336
-ret: 0         st: 0 flags:1 dts: 0.999979 pts: 0.999979 pos: 101143 size:     2
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 ret: 0         st:-1 flags:1  ts: 1.047503
-ret: 0         st: 0 flags:1 dts: 0.999979 pts: 0.999979 pos: 101143 size:     2
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 ret: 0         st: 0 flags:0  ts:-0.058333
-ret: 0         st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos:   5145 size:  3840
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 ret: 0         st: 0 flags:1  ts: 2.835833
-ret: 0         st: 0 flags:1 dts: 0.999979 pts: 0.999979 pos: 101143 size:     2
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 ret: 0         st:-1 flags:0  ts: 1.730004
-ret: 0         st: 0 flags:1 dts: 0.999979 pts: 0.999979 pos: 101143 size:     2
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 ret: 0         st:-1 flags:1  ts: 0.624171
-ret: 0         st: 0 flags:1 dts: 0.624167 pts: 0.624167 pos:  65065 size:  3840
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 ret: 0         st: 0 flags:0  ts:-0.481667
-ret: 0         st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos:   5145 size:  3840
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 ret: 0         st: 0 flags:1  ts: 2.412500
-ret: 0         st: 0 flags:1 dts: 0.999979 pts: 0.999979 pos: 101143 size:     2
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 ret: 0         st:-1 flags:0  ts: 1.306672
-ret: 0         st: 0 flags:1 dts: 0.999979 pts: 0.999979 pos: 101143 size:     2
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 ret: 0         st:-1 flags:1  ts: 0.200839
-ret: 0         st: 0 flags:1 dts: 0.200833 pts: 0.200833 pos:  24425 size:  3840
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 ret: 0         st: 0 flags:0  ts:-0.905000
-ret: 0         st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos:   5145 size:  3840
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 ret: 0         st: 0 flags:1  ts: 1.989167
-ret: 0         st: 0 flags:1 dts: 0.999979 pts: 0.999979 pos: 101143 size:     2
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 ret: 0         st:-1 flags:0  ts: 0.883340
-ret: 0         st: 0 flags:1 dts: 0.883333 pts: 0.883333 pos:  89945 size:  3840
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 ret: 0         st:-1 flags:1  ts:-0.222493
-ret: 0         st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos:   5145 size:  3840
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 ret: 0         st: 0 flags:0  ts: 2.671667
-ret: 0         st: 0 flags:1 dts: 0.999979 pts: 0.999979 pos: 101143 size:     2
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 ret: 0         st: 0 flags:1  ts: 1.565833
-ret: 0         st: 0 flags:1 dts: 0.999979 pts: 0.999979 pos: 101143 size:     2
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 ret: 0         st:-1 flags:0  ts: 0.460008
-ret: 0         st: 0 flags:1 dts: 0.460000 pts: 0.460000 pos:  49305 size:  3840
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 ret: 0         st:-1 flags:1  ts:-0.645825
-ret: 0         st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos:   5145 size:  3840
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