1 files changed, 28 insertions, 41 deletions

diff --git a/media/ffvpx/libavcodec/avpacket.c b/media/ffvpx/libavcodec/avpacket.c
index 99a0c1383..d1f4ea9eb 100644
--- a/media/ffvpx/libavcodec/avpacket.c
+++ b/media/ffvpx/libavcodec/avpacket.c
@@ -479,6 +479,34 @@ int av_packet_split_side_data(AVPacket *pkt){
 }
 #endif
 
+#if FF_API_MERGE_SD
+int ff_packet_split_and_drop_side_data(AVPacket *pkt){
+    if (!pkt->side_data_elems && pkt->size >12 && AV_RB64(pkt->data + pkt->size - 8) == FF_MERGE_MARKER){
+        int i;
+        unsigned int size;
+        uint8_t *p;
+
+        p = pkt->data + pkt->size - 8 - 5;
+        for (i=1; ; i++){
+            size = AV_RB32(p);
+            if (size>INT_MAX - 5 || p - pkt->data < size)
+                return 0;
+            if (p[4]&128)
+                break;
+            if (p - pkt->data < size + 5)
+                return 0;
+            p-= size+5;
+            if (i > AV_PKT_DATA_NB)
+                return 0;
+        }
+        pkt->size = p - pkt->data - size;
+        av_assert0(pkt->size >= 0);
+        return 1;
+    }
+    return 0;
+}
+#endif
+
 uint8_t *av_packet_pack_dictionary(AVDictionary *dict, int *size)
 {
     AVDictionaryEntry *t = NULL;
@@ -571,8 +599,6 @@ FF_ENABLE_DEPRECATION_WARNINGS
     dst->flags                = src->flags;
     dst->stream_index         = src->stream_index;
 
-    dst->side_data            = NULL;
-    dst->side_data_elems      = 0;
     for (i = 0; i < src->side_data_elems; i++) {
          enum AVPacketSideDataType type = src->side_data[i].type;
          int size          = src->side_data[i].size;
@@ -652,45 +678,6 @@ void av_packet_move_ref(AVPacket *dst, AVPacket *src)
     src->size = 0;
 }
 
-int av_packet_make_refcounted(AVPacket *pkt)
-{
-    int ret;
-
-    if (pkt->buf)
-        return 0;
-
-    ret = packet_alloc(&pkt->buf, pkt->size);
-    if (ret < 0)
-        return ret;
-    if (pkt->size)
-        memcpy(pkt->buf->data, pkt->data, pkt->size);
-
-    pkt->data = pkt->buf->data;
-
-    return 0;
-}
-
-int av_packet_make_writable(AVPacket *pkt)
-{
-    AVBufferRef *buf = NULL;
-    int ret;
-
-    if (pkt->buf && av_buffer_is_writable(pkt->buf))
-        return 0;
-
-    ret = packet_alloc(&buf, pkt->size);
-    if (ret < 0)
-        return ret;
-    if (pkt->size)
-        memcpy(buf->data, pkt->data, pkt->size);
-
-    av_buffer_unref(&pkt->buf);
-    pkt->buf  = buf;
-    pkt->data = buf->data;
-
-    return 0;
-}
-
 void av_packet_rescale_ts(AVPacket *pkt, AVRational src_tb, AVRational dst_tb)
 {
     if (pkt->pts != AV_NOPTS_VALUE)