lavf: move AVStream.last_in_packet_buffer to AVStreamInternal

Those are private fields, no reason to have them exposed in a public
header.

libavformat/avformat.h

@@ -1079,13 +1079,9 @@ typedef struct AVStream {
     enum AVStreamParseType need_parsing;
     struct AVCodecParserContext *parser;
 
-    /**
-     * last packet in packet_buffer for this stream when muxing.
-     */
-    struct AVPacketList *last_in_packet_buffer;
-
 #if LIBAVFORMAT_VERSION_MAJOR < 59
     // kept for ABI compatibility only, do not access in any way
+    void        *unused7;
     AVProbeData  unused6;
     int64_t      unused5[16+1];
     void         *unused2;

libavformat/internal.h

@@ -338,6 +338,11 @@ struct AVStreamInternal {
     AVRational display_aspect_ratio;
 
     AVProbeData probe_data;
+
+    /**
+     * last packet in packet_buffer for this stream when muxing.
+     */
+    struct AVPacketList *last_in_packet_buffer;
 };
 
 #ifdef __GNUC__

libavformat/mux.c

@@ -831,8 +831,8 @@ int ff_interleave_add_packet(AVFormatContext *s, AVPacket *pkt,
     av_packet_move_ref(&this_pktl->pkt, pkt);
     pkt = &this_pktl->pkt;
 
-    if (st->last_in_packet_buffer) {
-        next_point = &(st->last_in_packet_buffer->next);
+    if (st->internal->last_in_packet_buffer) {
+        next_point = &(st->internal->last_in_packet_buffer->next);
     } else {
         next_point = &s->internal->packet_buffer;
     }
@@ -876,7 +876,7 @@ next_non_null:
 
     this_pktl->next = *next_point;
 
-    st->last_in_packet_buffer = *next_point = this_pktl;
+    st->internal->last_in_packet_buffer = *next_point = this_pktl;
 
     return 0;
 }
@@ -926,7 +926,7 @@ int ff_interleave_packet_per_dts(AVFormatContext *s, AVPacket *out,
     }
 
     for (i = 0; i < s->nb_streams; i++) {
-        if (s->streams[i]->last_in_packet_buffer) {
+        if (s->streams[i]->internal->last_in_packet_buffer) {
             ++stream_count;
         } else if (s->streams[i]->codecpar->codec_type != AVMEDIA_TYPE_ATTACHMENT &&
                    s->streams[i]->codecpar->codec_id != AV_CODEC_ID_VP8 &&
@@ -951,7 +951,7 @@ int ff_interleave_packet_per_dts(AVFormatContext *s, AVPacket *out,
 
         for (i = 0; i < s->nb_streams; i++) {
             int64_t last_dts;
-            const AVPacketList *last = s->streams[i]->last_in_packet_buffer;
+            const AVPacketList *last = s->streams[i]->internal->last_in_packet_buffer;
 
             if (!last)
                 continue;
@@ -1000,8 +1000,8 @@ int ff_interleave_packet_per_dts(AVFormatContext *s, AVPacket *out,
             if (!s->internal->packet_buffer)
                 s->internal->packet_buffer_end = NULL;
 
-            if (st->last_in_packet_buffer == pktl)
-                st->last_in_packet_buffer = NULL;
+            if (st->internal->last_in_packet_buffer == pktl)
+                st->internal->last_in_packet_buffer = NULL;
 
             av_packet_unref(&pktl->pkt);
             av_freep(&pktl);
@@ -1019,8 +1019,8 @@ int ff_interleave_packet_per_dts(AVFormatContext *s, AVPacket *out,
         if (!s->internal->packet_buffer)
             s->internal->packet_buffer_end = NULL;
 
-        if (st->last_in_packet_buffer == pktl)
-            st->last_in_packet_buffer = NULL;
+        if (st->internal->last_in_packet_buffer == pktl)
+            st->internal->last_in_packet_buffer = NULL;
         av_freep(&pktl);
 
         return 1;

libavformat/mxfenc.c

@@ -3050,7 +3050,7 @@ static int mxf_interleave_get_packet(AVFormatContext *s, AVPacket *out, AVPacket
     int i, stream_count = 0;
 
     for (i = 0; i < s->nb_streams; i++)
-        stream_count += !!s->streams[i]->last_in_packet_buffer;
+        stream_count += !!s->streams[i]->internal->last_in_packet_buffer;
 
     if (stream_count && (s->nb_streams == stream_count || flush)) {
         AVPacketList *pktl = s->internal->packet_buffer;
@@ -3061,8 +3061,8 @@ static int mxf_interleave_get_packet(AVFormatContext *s, AVPacket *out, AVPacket
                 if (!stream_count || pktl->pkt.stream_index == 0)
                     break;
                 // update last packet in packet buffer
-                if (s->streams[pktl->pkt.stream_index]->last_in_packet_buffer != pktl)
-                    s->streams[pktl->pkt.stream_index]->last_in_packet_buffer = pktl;
+                if (s->streams[pktl->pkt.stream_index]->internal->last_in_packet_buffer != pktl)
+                    s->streams[pktl->pkt.stream_index]->internal->last_in_packet_buffer = pktl;
                 last = pktl;
                 pktl = pktl->next;
                 stream_count--;
@@ -3087,8 +3087,8 @@ static int mxf_interleave_get_packet(AVFormatContext *s, AVPacket *out, AVPacket
         *out = pktl->pkt;
         av_log(s, AV_LOG_TRACE, "out st:%d dts:%"PRId64"\n", (*out).stream_index, (*out).dts);
         s->internal->packet_buffer = pktl->next;
-        if(s->streams[pktl->pkt.stream_index]->last_in_packet_buffer == pktl)
-            s->streams[pktl->pkt.stream_index]->last_in_packet_buffer= NULL;
+        if(s->streams[pktl->pkt.stream_index]->internal->last_in_packet_buffer == pktl)
+            s->streams[pktl->pkt.stream_index]->internal->last_in_packet_buffer= NULL;
         if(!s->internal->packet_buffer)
             s->internal->packet_buffer_end= NULL;
         av_freep(&pktl);