API changes, most recent first:
+2011-01-03 - b73ec05 - lavu 51.21.0
+ Add av_popcount64
+
2011-12-25 - lavfi 2.14.0
e1d9dbf Add a new installed header - buffersrc.h
It contains a new function av_buffersrc_buffer() that allows passing
2011-12-18 - 8400b12 - lavc 53.28.1
Deprecate AVFrame.age. The field is unused.
-2011-xx-xx - xxxxxxx - lavf 53.17.0
- Add avformat_open_input().
+2011-12-12 - 5266045 - lavf 53.17.0
+ Add avformat_close_input().
Deprecate av_close_input_file() and av_close_input_stream().
-2011-xx-xx - xxxxxxx - lavc 53.25.0
+2011-12-02 - 0eea212 - lavc 53.25.0
Add nb_samples and extended_data fields to AVFrame.
Deprecate AVCODEC_MAX_AUDIO_FRAME_SIZE.
Deprecate avcodec_decode_audio3() in favor of avcodec_decode_audio4().
avcodec_decode_audio4() writes output samples to an AVFrame, which allows
audio decoders to use get_buffer().
-2011-xx-xx - xxxxxxx - lavc 53.24.0
+2011-12-04 - 560f773 - lavc 53.24.0
Change AVFrame.data[4]/base[4]/linesize[4]/error[4] to [8] at next major bump.
Change AVPicture.data[4]/linesize[4] to [8] at next major bump.
Change AVCodecContext.error[4] to [8] at next major bump.
*/
#define LIBAVUTIL_VERSION_MAJOR 51
-#define LIBAVUTIL_VERSION_MINOR 20
+#define LIBAVUTIL_VERSION_MINOR 21
#define LIBAVUTIL_VERSION_MICRO 0
#define LIBAVUTIL_VERSION_INT AV_VERSION_INT(LIBAVUTIL_VERSION_MAJOR, \