API changes, most recent first:
+2015-xx-xx - xxxxxxx - lavc 57.6.0 - avcodec.h
2015-xx-xx - lavc 57.7.0 - avcodec.h
xxxxxx - Deprecate av_free_packet(). Use av_packet_unref() as replacement,
it resets the packet in a more consistent way.
xxxxxx - Deprecate av_dup_packet(), it is a no-op for most cases.
Use av_packet_ref() to make a non-refcounted AVPacket refcounted.
+ xxxxxx - Add av_packet_alloc(), av_packet_clone(), av_packet_free().
+ They match the AVFrame functions with the same name.
2015-xx-xx - xxxxxxx - lavc 57.5.0 - avcodec.h
Add data and linesize array to AVSubtitleRect, to be used instead of
* @{
*/
+/**
+ * Allocate an AVPacket and set its fields to default values. The resulting
+ * struct must be freed using av_packet_free().
+ *
+ * @return An AVPacket filled with default values or NULL on failure.
+ *
+ * @note this only allocates the AVPacket itself, not the data buffers. Those
+ * must be allocated through other means such as av_new_packet.
+ *
+ * @see av_new_packet
+ */
+AVPacket *av_packet_alloc(void);
+
+/**
+ * Create a new packet that references the same data as src.
+ *
+ * This is a shortcut for av_packet_alloc()+av_packet_ref().
+ *
+ * @return newly created AVPacket on success, NULL on error.
+ *
+ * @see av_packet_alloc
+ * @see av_packet_ref
+ */
+AVPacket *av_packet_clone(AVPacket *src);
+
+/**
+ * Free the packet, if the packet is reference counted, it will be
+ * unreferenced first.
+ *
+ * @param packet packet to be freed. The pointer will be set to NULL.
+ * @note passing NULL is a no-op.
+ */
+void av_packet_free(AVPacket **pkt);
+
/**
* Initialize optional fields of a packet with default values.
*
pkt->side_data_elems = 0;
}
+AVPacket *av_packet_alloc(void)
+{
+ AVPacket *pkt = av_mallocz(sizeof(AVPacket));
+ if (!pkt)
+ return pkt;
+
+ av_packet_unref(pkt);
+
+ return pkt;
+}
+
+void av_packet_free(AVPacket **pkt)
+{
+ if (!pkt || !*pkt)
+ return;
+
+ av_packet_unref(*pkt);
+ av_freep(pkt);
+}
+
static int packet_alloc(AVBufferRef **buf, int size)
{
int ret;
return ret;
}
+AVPacket *av_packet_clone(AVPacket *src)
+{
+ AVPacket *ret = av_packet_alloc();
+
+ if (!ret)
+ return ret;
+
+ if (av_packet_ref(ret, src))
+ av_packet_free(&ret);
+
+ return ret;
+}
+
void av_packet_move_ref(AVPacket *dst, AVPacket *src)
{
*dst = *src;