movenc: Add support for writing fragmented mov files

Signed-off-by: Martin Storsjö <martin@martin.st>

Changelog

@@ -4,6 +4,7 @@ releases are sorted from youngest to oldest.
 version <next>:
 
 - XWD encoder and decoder
+- Support for fragmentation in the mov/mp4 muxer
 
 
 version 0.8:

libavformat/movenc.h

@@ -65,6 +65,11 @@ typedef struct {
     HintSample *samples;
 } HintSampleQueue;
 
+typedef struct {
+    int64_t offset;
+    int64_t time;
+} MOVFragmentInfo;
+
 typedef struct MOVIndex {
     int         mode;
     int         entry;
@@ -98,7 +103,19 @@ typedef struct MOVIndex {
     int64_t     cur_rtp_ts_unwrapped;
     uint32_t    max_packet_size;
 
+    int64_t     default_duration;
+    uint32_t    default_sample_flags;
+    uint32_t    default_size;
+
     HintSampleQueue sample_queue;
+
+    AVIOContext *mdat_buf;
+    int64_t     moof_size_offset;
+    int64_t     data_offset;
+    int64_t     frag_start;
+
+    int         nb_frag_info;
+    MOVFragmentInfo *frag_info;
 } MOVTrack;
 
 typedef struct MOVMuxContext {
@@ -116,9 +133,17 @@ typedef struct MOVMuxContext {
     int iods_skip;
     int iods_video_profile;
     int iods_audio_profile;
+
+    int fragments;
+    int max_fragment_duration;
+    int max_fragment_size;
 } MOVMuxContext;
 
 #define FF_MOV_FLAG_RTP_HINT 1
+#define FF_MOV_FLAG_FRAGMENT 2
+#define FF_MOV_FLAG_EMPTY_MOOV 4
+#define FF_MOV_FLAG_FRAG_KEYFRAME 8
+#define FF_MOV_FLAG_SEPARATE_MOOF 16
 
 int ff_mov_write_packet(AVFormatContext *s, AVPacket *pkt);
 

libavformat/version.h

@@ -30,7 +30,7 @@
 #include "libavutil/avutil.h"
 
 #define LIBAVFORMAT_VERSION_MAJOR 53
-#define LIBAVFORMAT_VERSION_MINOR 20
+#define LIBAVFORMAT_VERSION_MINOR 21
 #define LIBAVFORMAT_VERSION_MICRO  0
 
 #define LIBAVFORMAT_VERSION_INT AV_VERSION_INT(LIBAVFORMAT_VERSION_MAJOR, \