Re: [Gnash-dev] from Hong Yu: progress of debugging Gnash-cvs (checked-out Feb 12, 2008) with new FFmpeg (VP6 support) for YouTube flash video

[strk]

Hong, could you provide a contextual diff ?
Would take a single command to apply instead of
12 steps :P

--strk;

On Fri, Feb 15, 2008 at 07:13:25PM +0800, Hong Yu wrote:
> 
> With reference to developers' suggestions and Gnash source, we have done 
> the following and have seen progress of playing YouTube flash video with 
> direct linking to new FFmpeg (with VP6 support):
> [1] check out updated Gnash-cvs on Feb 12, 2008
> [2] modify 'configure.ac' to enable '--enable-media=ffmpeg' option
> [3] remove libmedia/sdl from compilation (moved to libmedia/ffmpeg)
> [4] create directory libmedia/ffmpeg, copy 'AudioDecoderFfmpeg.*', 
> 'sound_handler_sdl.*', 'VideoDecoderFfmpeg.*' to the directory from 
> libmedia/sdl, and modify 'VideoDecoderFfmpeg.cpp' for working with new 
> FFmpeg
> [5] create class 'ffmpegNetStreamUtil.*', where the utility classes 
> 'raw_mediadata_t', 'multithread_queue', 'AudioResampler' (from 
> server/asobj/NetStreamFFmpeg.*)
> [6] according to [3], [4], [5], modify Makefile.am in the directories 
> gui/, server/, server/vm/, server/asobj/, server/parser/, utilities/, 
> libmedia/, pythonmodule/, po/
> [7] modify server/parser/video_stream_def.* for compatibility with 
> FFmpeg option
> [8] modify server/asobj/NetConnection.* to recover gnash0.8.1 network 
> downloading code for use with FFmpeg
> [9] modify server/asobj/NetStreamFfmpeg::pause() to solve {pause, 
> toggle, unpause} in playing YouTube with FFmpeg
> [10] modify server/asobj/NetStreamFfmpeg.* to solve play-end detection 
> and 'replay' display in playing YouTube with FFmpeg
> [11] modify server/asobj/NetStreamFfmpeg.* to solve downloading progress 
> display in playing YouTube with FFmpeg
> 
> Currently, after the above modifications, performance of playing YouTube 
> with new FFmpeg is satisfactory. Also we will try rebuilding with 
> debugger disabled so to ensure the normal production performance.
> 
> Our modifications are where '// Hong Yu -- FFmpeg' in the attached. If 
> ffmpeg option would be promising and shall be submitted to CVS, we are 
> also ready to do further cleaning up.
> 
> Best regards,
> 
> Hong Yu
> 
> 
> 
> Hong Yu wrote:
> >
> >Currently we are further modifying Gnash-cvs source for the option 
> >'--enable-media=ffmpeg' and have had the following plans:
> >[1] Modify 'configure.ac' and set the default value of 'media_handler' 
> >to be 'gst'
> >[2] Create directory 'libmedia/ffmpeg' and copy the current program 
> >dependencies 'AudioDecoderFfmpeg.*', 'sound_handler_sdl.*', 
> >'VideoDecoderFfmpeg.*' under the directory
> >[3] Rename the directory 'libmedia/sdl' and exclude it from build 
> >temporarily
> >[4] Modify files 'Makefile.am' accordingly wherever necessary
> >[5] Create files 'ffmpegNetStreamUtil.*' in the directory 
> >'libmedia/ffmpeg', and move the utility classes 'raw_mediadata_t', 
> >'multithread_queue<T>', and 'AudioResampler' from 
> >'server/asobj/NetStreamFfmpeg.h'
> >[6] Create files 'NetConnectionFfmpeg.*' in the directory 
> >'libmedia/ffmpeg' and copy partial implementation of 
> >'server/asobj/NetConnection.*' of Gnash-0.8.1, which is invoked in 
> >'server/asobj/NetStreamFfmpeg.*'
> >[7] Test and debug the above changes with YouTube
> >
> >We will post our debugging results with YouTube soon afterwards. And 
> >look forward to your helpful suggestions!
> >
> >Best regards,
> >
> >Hong Yu
> >
> >
> 


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