X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=libavformat%2Fmov.c;h=5464b783d37f852f09779f4b284e876b736fb50e;hb=47886e3644f94edb7bb78500da72975a9d7d2458;hp=773760c98a2d4b2d9d9b2c67bf9bf9e77932df00;hpb=721be993713550e7f1c3bccf670fd0a1be7e7738;p=ffmpeg

diff --git a/libavformat/mov.c b/libavformat/mov.c
index 773760c98a2..5464b783d37 100644
--- a/libavformat/mov.c
+++ b/libavformat/mov.c
@@ -26,6 +26,8 @@
 //#define MOV_EXPORT_ALL_METADATA
 
 #include "libavutil/intreadwrite.h"
+#include "libavutil/intfloat_readwrite.h"
+#include "libavutil/mathematics.h"
 #include "libavutil/avstring.h"
 #include "libavutil/dict.h"
 #include "avformat.h"
@@ -454,7 +456,7 @@ static int mov_read_hdlr(MOVContext *c, AVIOContext *pb, MOVAtom atom)
         st->codec->codec_type = AVMEDIA_TYPE_AUDIO;
     else if(type == MKTAG('m','1','a',' '))
         st->codec->codec_id = CODEC_ID_MP2;
-    else if(type == MKTAG('s','u','b','p'))
+    else if((type == MKTAG('s','u','b','p')) || (type == MKTAG('c','l','c','p')))
         st->codec->codec_type = AVMEDIA_TYPE_SUBTITLE;
 
     avio_rb32(pb); /* component  manufacture */
@@ -476,8 +478,7 @@ int ff_mov_read_esds(AVFormatContext *fc, AVIOContext *pb, MOVAtom atom)
     avio_rb32(pb); /* version + flags */
     ff_mp4_read_descr(fc, pb, &tag);
     if (tag == MP4ESDescrTag) {
-        avio_rb16(pb); /* ID */
-        avio_r8(pb); /* priority */
+        ff_mp4_parse_es_descr(pb, NULL);
     } else
         avio_rb16(pb); /* ID */
 
@@ -1192,7 +1193,18 @@ int ff_mov_read_stsd_entries(MOVContext *c, AVIOContext *pb, int entries)
             st->codec->width = sc->width;
             st->codec->height = sc->height;
         } else {
-            /* other codec type, just skip (rtp, mp4s, tmcd ...) */
+            if (st->codec->codec_tag == MKTAG('t','m','c','d')) {
+                int val;
+                avio_rb32(pb);       /* reserved */
+                val = avio_rb32(pb); /* flags */
+                if (val & 1)
+                    st->codec->flags2 |= CODEC_FLAG2_DROP_FRAME_TIMECODE;
+                avio_rb32(pb);
+                avio_rb32(pb);
+                st->codec->time_base.den = get_byte(pb);
+                st->codec->time_base.num = 1;
+            }
+            /* other codec type, just skip (rtp, mp4s, ...) */
             avio_skip(pb, size - (avio_tell(pb) - start_pos));
         }
         /* this will read extra atoms at the end (wave, alac, damr, avcC, SMI ...) */
@@ -1469,6 +1481,11 @@ static int mov_read_stts(MOVContext *c, AVIOContext *pb, MOVAtom atom)
 
         sample_count=avio_rb32(pb);
         sample_duration = avio_rb32(pb);
+        /* sample_duration < 0 is invalid based on the spec */
+        if (sample_duration < 0) {
+            av_log(c->fc, AV_LOG_ERROR, "Invalid SampleDelta in STTS %d", sample_duration);
+            sample_duration = 1;
+        }
         sc->stts_data[i].count= sample_count;
         sc->stts_data[i].duration= sample_duration;
 
@@ -2327,7 +2344,6 @@ static int mov_probe(AVProbeData *p)
             return score;
         }
     }
-    return score;
 }
 
 // must be done after parsing all trak because there's no order requirement
@@ -2629,12 +2645,12 @@ static int mov_read_close(AVFormatContext *s)
 }
 
 AVInputFormat ff_mov_demuxer = {
-    "mov,mp4,m4a,3gp,3g2,mj2",
-    NULL_IF_CONFIG_SMALL("QuickTime/MPEG-4/Motion JPEG 2000 format"),
-    sizeof(MOVContext),
-    mov_probe,
-    mov_read_header,
-    mov_read_packet,
-    mov_read_close,
-    mov_read_seek,
+    .name           = "mov,mp4,m4a,3gp,3g2,mj2",
+    .long_name      = NULL_IF_CONFIG_SMALL("QuickTime/MPEG-4/Motion JPEG 2000 format"),
+    .priv_data_size = sizeof(MOVContext),
+    .read_probe     = mov_probe,
+    .read_header    = mov_read_header,
+    .read_packet    = mov_read_packet,
+    .read_close     = mov_read_close,
+    .read_seek      = mov_read_seek,
 };