avcodec/g2meet: Check RGB upper limit

[ffmpeg] / libavcodec / avpacket.c

diff --git a/libavcodec/avpacket.c b/libavcodec/avpacket.c
index fe8113ab764553cdfded8dcb9cf814ff9e3652c4..99a0c1383bd1bd10b47b82dfb33f715a8c80d8b0 100644 (file)
--- a/libavcodec/avpacket.c
+++ b/libavcodec/avpacket.c
@@ -652,6 +652,45 @@ 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)