-#define DUP_DATA(dst, src, size, padding) \
+int av_packet_from_data(AVPacket *pkt, uint8_t *data, int size)
+{
+ if (size >= INT_MAX - FF_INPUT_BUFFER_PADDING_SIZE)
+ return AVERROR(EINVAL);
+
+ pkt->buf = av_buffer_create(data, size + FF_INPUT_BUFFER_PADDING_SIZE,
+ av_buffer_default_free, NULL, 0);
+ if (!pkt->buf)
+ return AVERROR(ENOMEM);
+
+ pkt->data = data;
+ pkt->size = size;
+#if FF_API_DESTRUCT_PACKET
+ pkt->destruct = dummy_destruct_packet;
+#endif
+
+ return 0;
+}
+
+#define ALLOC_MALLOC(data, size) data = av_malloc(size)
+#define ALLOC_BUF(data, size) \
+do { \
+ av_buffer_realloc(&pkt->buf, size); \
+ data = pkt->buf ? pkt->buf->data : NULL; \
+} while (0)
+
+#define DUP_DATA(dst, src, size, padding, ALLOC) \