ffmpeg source update for sep 09

source/patched-ffmpeg-mt/doc/APIchanges

 Never assume the API of libav* to be stable unless at least 1 week has passed since
 the last major version increase.
 The last version increases were:
 libavcodec:  ?
 libavcore:   2010-07-21
 libavdevice: ?
 libavfilter: 2009-10-18
 libavformat: ?
 libpostproc: ?
 libswscale:  ?
 libavutil:   2009-03-08
 
 
 API changes, most recent first:
 
+2010-09-08 - r25076 - lavu 50.26.0 - av_get_cpu_flags()
+  Add av_get_cpu_flags().
+
+2010-09-07 - r25067 - lavcore 0.9.0 - av_image_copy()
+  Add av_image_copy().
+
+2010-09-07 - r25064 - lavcore 0.8.0 - av_image_copy_plane()
+  Add av_image_copy_plane().
+
+2010-09-07 - r25057 - lavcore 0.7.0 - imgutils.h
+  Adopt hierarchical scheme for the imgutils.h function names,
+  deprecate the old names.
+
+2010-09-04 - r25040 - lavu 50.25.0 - AV_CPU_FLAG_*
+  Deprecate the FF_MM_* flags defined in libavcodec/avcodec.h in favor
+  of the AV_CPU_FLAG_* flags defined in libavutil/cpu.h.
+
+2010-08-26 - r24936 - lavc 52.87.0 - avcodec_get_channel_layout()
+  Add avcodec_get_channel_layout() in audioconvert.h.
+
+2010-08-20 - r24851 - lavcore 0.6.0 - av_fill_image_max_pixsteps()
+  Rename av_fill_image_max_pixstep() to av_fill_image_max_pixsteps().
+
+2010-08-18 - r24827 - lavcore 0.5.0 - av_fill_image_max_pixstep()
+  Add av_fill_image_max_pixstep() in imgutils.h.
+
+2010-08-17 - r24814 - lavu 50.24.0 - AV_NE()
+  Add the AV_NE macro.
+
+2010-08-17 - r24811 - lavfi 1.36.0 - audio framework
+  Implement AVFilterBufferRefAudioProps struct for audio properties,
+  get_audio_buffer(), filter_samples() functions and related changes.
+
+2010-08-12 - r24787 - lavcore 0.4.0 - av_get_image_linesize()
+  Add av_get_image_linesize() in imgutils.h.
+
+2010-08-11 - r24773 - lavfi 1.34.0 - AVFilterBufferRef
+  Resize data and linesize arrays in AVFilterBufferRef to 8.
+
+  This change breaks libavfilter API/ABI.
+
+2010-08-11 - r24768 - lavc 52.85.0 - av_picture_data_copy()
+  Add av_picture_data_copy in avcodec.h.
+
+2010-08-11 - r24765 - lavfi 1.33.0 - avfilter_open()
+  Change avfilter_open() signature:
+  AVFilterContext *avfilter_open(AVFilter *filter, const char *inst_name) ->
+  int avfilter_open(AVFilterContext **filter_ctx, AVFilter *filter, const char *inst_name);
+
+  This change breaks libavfilter API/ABI.
+
+2010-08-11 - r24763 - lavfi 1.32.0 - AVFilterBufferRef
+  Add a type field to AVFilterBufferRef, and move video specific
+  properties to AVFilterBufferRefVideoProps.
+
+  This change breaks libavfilter API/ABI.
+
 2010-08-07 - r24732 - lavfi 1.31.0 - AVFilterLink
   Rename AVFilterLink fields:
   AVFilterLink.srcpic    ->  AVFilterLink.src_buf
   AVFilterLink.cur_pic   ->  AVFilterLink.cur_buf
   AVFilterLink.outpic    ->  AVFilterLink.out_buf
 
 2010-08-07 - r24731 - lavfi 1.30.0
   Rename functions and fields:
   avfilter_(un)ref_pic       -> avfilter_(un)ref_buffer
   avfilter_copy_picref_props -> avfilter_copy_buffer_ref_props
@@ skipping 336 matching lines @@
     - AVFormatContext.comment
     - AVFormatContext.album
     - AVFormatContext.year
     - AVFormatContext.track
     - AVFormatContext.genre
     - AVStream.language
     - AVStream.filename
     - AVProgram.provider_name
     - AVProgram.name
     - AVChapter.title