API changes, most recent first:
+2018-04-01 - xxxxxxx - lavc 58.17.100 - avcodec.h
+ Add av_packet_make_refcounted().
+
2018-xx-xx - xxxxxxx - lavfi 7.14.100 - avfilter.h
Deprecate use of avfilter_register(), avfilter_register_all(),
avfilter_next(). Add av_filter_iterate().
* @warning This is a hack - the packet memory allocation stuff is broken. The
* packet is allocated if it was not really allocated.
*
- * @deprecated Use av_packet_ref
+ * @deprecated Use av_packet_ref or av_packet_make_refcounted
*/
attribute_deprecated
int av_dup_packet(AVPacket *pkt);
*/
int av_packet_copy_props(AVPacket *dst, const AVPacket *src);
+/**
+ * Ensure the data described by a given packet is reference counted.
+ *
+ * @note This function does not ensure that the reference will be writable.
+ * Use av_packet_make_writable instead for that purpose.
+ *
+ * @see av_packet_ref
+ * @see av_packet_make_writable
+ *
+ * @param pkt packet whose data should be made reference counted.
+ *
+ * @return 0 on success, a negative AVERROR on error. On failure, the
+ * packet is unchanged.
+ */
+int av_packet_make_refcounted(AVPacket *pkt);
+
/**
* Create a writable reference for the data described by a given packet,
* avoiding data copy if possible.
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;
#include "libavutil/version.h"
#define LIBAVCODEC_VERSION_MAJOR 58
-#define LIBAVCODEC_VERSION_MINOR 16
+#define LIBAVCODEC_VERSION_MINOR 17
#define LIBAVCODEC_VERSION_MICRO 100
#define LIBAVCODEC_VERSION_INT AV_VERSION_INT(LIBAVCODEC_VERSION_MAJOR, \