mirror of
https://github.com/mpv-player/mpv
synced 2024-12-14 02:45:43 +00:00
233 lines
11 KiB
Plaintext
233 lines
11 KiB
Plaintext
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ChangeLog:
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~~~~~~~~~~
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v0.2: [first public release]
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- parser: add support for VOB files (audio format still has problems...)
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- libmpeg3: improvements in file-type detector, supporting mpegs with RIFF hdr
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- libmpeg3: improvements on mpeg3_read_program() to handle damaged files better
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- libmpeg3: new functions for separated PTS access: mpeg3_audio_pts() and
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mpeg3_video_pts(), they return timestamp in seconds, format: double
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- play: new audio-video sync method, using timestamps from streams.
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much better, even on very damaged files!
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- play: measuring of audio buffer size instead constant hard-wired value
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- libmpeg3: more improvements to handle better strange files...
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- play: drop timestamp correction if > 2 seconds (good for concatenated files)
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v0.3:
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- much better audio-video sync, using limited timestamp correction
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- TVout directory added, with tools & scripts to setup TVout on Matrox cards
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(it is able to play mpegs fullscreen on TV without using X)
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v0.5:
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- integrating dvdview for video decoding
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(still using libmpeg3 for system stream parsing and audio decoding)
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-> not works... some variable randomly changes (uninitialized pointers
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in dvdview??? c++/c mixing problem?)
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v0.6:
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- new player from scratch, using my mp3lib for audio, parser.c for demuxing.
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integrated dvdview is still buggy...
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v0.7: [second edition]
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- dvdview as separated process, using FIFOs for communication.
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- some fixes in dvdview/system/sysdec1.cc, improved re-syncing on reset
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- double-buffering support into dvdview's mga_vid class (and some
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changes in the mga_vid kernel module too!)
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- EOF problem solved
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- background playing option (using MGA Color-Keying and xsetroot)
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- rebuild README, added Standard Disclaimer section
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v0.71:
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- better missing-stream detection (counting only the real packets)
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- check for file and missing streams before fork()
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- fixed ugly byteorder bug when reading header dword
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- new system stream sync method (doesn't requires SYSTEM_HEADER_START_CODE)
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- seeking (byte or second pos), works *only* with streams with immediate
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SYSTEM_HEADER frames.
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v0.8: [seeking works]
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- implementing own video packet reader -> disabling the whole streaming part
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of dvdview.
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- saving system headers, and re-sent after starting dvdview (seeking/resync)
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-> allow seeking in single-header mpeg files (contact2.mpg)
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- advanced resync and seek_sec method, using video-packet type-checks
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- fix read() problem, when not enough bytes available in fifo (see man 2 read)
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- removed unused objects (postproc,options,streaming) from dvdview's Makefile
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(smaller executable, faster compile)
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- sec. and bytepos seek fixed, works well now.
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- simple console gui, using my getch2 (from mailer3 source) for keyboard.
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allows seek,pause,quit functions (for testing only)
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it's time to begin develop some nice GUI with skins, plugins etc :)
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- improved runtime seeking, added force_redraw variable, and PTS audio
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correction after every seek.
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v0.81:
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- fps fixed (other than 25fps supported again)
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- EOF handling fixed again
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- nosound support (currently only system streams supported, not video-only)
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also see -nosound commandline option
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- mga_vid: changed mmap() to allow double buffering in 704x528
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- mga_vid: double buffering is optional from now (dvdview option -db )
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* it successfully plays .VOB files (without sound)
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- PTS/DTS support in mpeg-2 system streams (.vob files)
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- PCM audio (48kHz stereo, unsigned, swapped byteorder) playing implemented
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* it "plays" .VOB files with PCM sound, but it's too sloooooow :(((
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- some optimization of dvdview's bitstream handler (see FillBits & GetBitsFast)
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v0.82: [VOB support]
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- updated dvdview from current CVS version (1.2.0-pre) -> about 25% faster!!!
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* it's now fast enough for VOB playback
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- AC3 audio support (using Aaron Holtzman's libac3 from ac3dec package)
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- new, simpler Makefile for libac3
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- re-organized text files (README splitted to ChangeLog and AUTHORS)
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v0.83: [ALSA support]
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- some timing code to fix audio syncing with ALSA drivers (test it! I can't)
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use -alsa cmdline option to enable this experimental code!
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- cmdline option (-abs) for overriding audio buffer size (default: measured)
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why is it needed? some audio drivers has bad implementaion of select(),
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so measuring buffer size gives false result.
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if you hear sound before picture window appears, then you should use this!
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v0.84:
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- multiple DVD audio channels/streams support (use -aid option to select chn.)
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- cmdline option for maximum PTS time correction (-mc <value>)
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- PTS sync code moved to frame display loop -> more precise timing
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now it sync audio after every 5 decoded frames
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- cmdline option for override frame rate (-fps <rate>)
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some .VOB files has bad frame rate value in headers (why? any ideas?)
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- ac3 audio seeking works (some hack in libac3's parse.c)
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v0.85: [first non-experimental release]
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- directory structure changed
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- better documentation, added new INSTALL
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- every Makefile uses OPTFLAGS environment variable, see INSTALL
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- help (run mpg12play without any parameters or with -h/--help)
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- fixed byte seeking (-sb)
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- allow selecting mpeg audio channel, see -aid (streams 0x1C0-1DF)
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- allow selecting video channel, see -vid (0x1E0-1EF)
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- allow audio format override, see -afm
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- new streaming system (with 4k buffering)
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- initial VCD (Video CD) support, use -vcd to select track, and give
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device name as filename (e.g.: mpg12play -vcd 2 /dev/cdrom)
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Problems with dual streaming, it's very slow! reads every sectors twice...
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- VCD cache system... -> solved dual (A+V) streaming slowdown
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v0.86: [cleanup]
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- last_frame_* thing removed + control fifo read() fixed -> better and
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linear (no seek-back) resync if dvdview dies
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- better nosound timing (uses -alsa timer), seeking works
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- resync_to_pts eliminated (using new max_pts_correction)
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- cleanups, error checks, small fixes in the whole player.c
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- removed some unused old code
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- exit code moved to exit_player(), removed redundancy, fixed kill order
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v0.87:
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- i've found the reason of bad fps value with some vob files...
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the fps is correct, but the dvdview doesn't decode all the frames
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(reads repeat_first_field flag but don't rely on it)
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- new demuxer code: read & demux input stream only at once, and uses two
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memory FIFO-s for packages. also new reader code, everyting named ds_*()
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The new demuxer can autodetect video and audio stream ids, if not
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specified with -aid / -vid option, and better implementation of -afm
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- vcd cache is optional (and disabled by default), because unneccesary with
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new demux/streaming code
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v0.90pre:
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- new codec added: mpeg2dec by Aaron Holtzman
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after doing some fixes (see at bottom), it's able to play mpeg1/mpeg2 video
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- FIFO API changed: after frame_complete command (0x0) the codec must
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send the fps*10000 and the length*100 value. length is 1.00 for a simple
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frame, and >=1 for mpeg2 fields (eliminates the fps problem)
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Now, using mpeg2dec we are able to play .vob files with correct fps timing!
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- better AC3 resync after seek (new func. in libac3: ac3_bitstream_reset())
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using ac3_decode_frame() instead ds_fill_buffer() when syncing PTS
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v0.90pre2:
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- mpeg2dec integrated into player binary
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- using pipe() instead of named pipes
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- using shared memory (mmap(...MAP_ANON...)) for packet transfer to codec
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- stream_select() thing removed
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- some optimization in demuxer code
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- measuring codec CPU usage (relative to video time!!!, so it can be >100%
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on a slow system) This value must be <=100% for continous video playback.
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v0.90pre3:
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- ugly bug fixed causing packet loss at codec restarting
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(i wrote control_fifo instead of control_fifo2 into codec controller)
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- video init part moved to the player
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- using shared memory for image buffers to avoid green flashes when
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codec restarted...
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- new shared memory allocation code (the mmap() thing worked only with
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kernel 2.4.x). thanx to LGB for the info and help... see linux/shmem.[ch]
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- config.h moved, Makefiles changed a bit (added libvo path, thanx to LGB)
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you may select CPU extensions (3Dnow/MMX/SSE) *only* at config.h
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- meaningfull error messages if video stream cannot be synced
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(many user asked about "missing video stream" error...)
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v0.90pre4:
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- included new mpeg2dec source (with SSE idct code)
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v0.90pre5:
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- libvo: OpenGL video renderer code by me
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- included new mpeg2dec and ac3dec from today CVS snapshot
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- new docs: SPEED and MTRR
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- seq. head processing and video init code moved into player.c, just
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before fork()'ing, so the child inherits all this info!
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- removed all sequenceheader[] code, it's unneeded now
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- source cleanup, removed some debug printf()'s, old comments
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- EOF problem seems to be solved (maybe at the cleanup???)
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- implemented bitrate (and free framerate) reading into mpeg2dec/header.c
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- seeking skip times are better, based on bitrate
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Changed in libac3 source:
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~~~~~~~~~~~~~~~~~~~~~~~~~
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- ac3.h replaced with the old version from v0.6.0
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- decode.c modified to fit my interface
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- stats.h: use stats_* functions only if DEBUG defined
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Changed in libmpeg2 source:
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~~~~~~~~~~~~~~~~~~~~~~~~~~~
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- header.c: implemented repeat_first_field thing (see picture.repeat_count)
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- HACK_MODE set to 1 (default is 0, which works only with mpeg2 streams)
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- decode.c: some changes added, active only if MPG12PLAY #defined
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- header.c: implemented bitrate (and free framerate) reading
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Changed in libvo source:
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~~~~~~~~~~~~~~~~~~~~~~~~
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- fixed bug in mga_vid vo module: used dest_width/height instead src_*
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(dst is important only for the card, we need (for memory, etc) the src size!)
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- added OpenGL video renderer (based on x11 rendere and Pontscho's opengl code)
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Changed in DVDview source:
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~~~~~~~~~~~~~~~~~~~~~~~~~~
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main.cc: replaced with my code
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Makefile: removed unneccesary objects, added optimization flags
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output/out_mgavid.cc & .hh: added double-buffering and color-keying support
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system/userpack.cc & .hh: new code, by me (interface to my packet reader)
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video12/vdecoder.hh: added GetSeqHeader() function (for accessing FPS value)
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video12/vdecoder.cc: commented out calls to PrintDataBin() (debug info only)
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TODO:
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~~~~~
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- multiple video packets (whole frame) transfer to codec - DONE
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- B-frame skipping (DVD for slow systems)
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- VCD support - DONE
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- DVD Audio downsampling (for 44kHz cards)
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- SEEKing in VOB files with AC3 sound (some hack needed in libac3) - DONE
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- own AC3 frame reader -> better resync after seek - DONE
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- player source is really ugly now... it's time to some cleanup - DONE?
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- seek/resync without immediate SYSTEM_HEADER frames. - DONE
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- end of file detecion !!! - DONE - NOT done (see matrix.vob!) - DONE
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- other than 25fps movies - DONE
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- test with mono sound - DONE (currently playing as stereo)
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- nosound (no audio card or no audio stream) - DONE
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- .vob support (non-crypted DVD/mpeg2 stream) - DONE
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- AC3 and PCM audio support - DONE
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- audio-only and video-only file support
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- nice GUI (something new written in gtk or modify xmovie's gui)
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- Xv support - DONE (libvo has it)
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- easier compile, maybe new ./configure and makefiles - DONE?
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- decss support (encrypted dvd)
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- test speed with pgcc (does it worth?)
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