[转载] MPEG-4 AVC/H.264 video codecs list (from doom9)

本文档汇总了多种H.264/MPEG-4 AVC编解码器,包括软件编解码器、开源项目及硬件实现方案。涵盖了从消费电子到专业级应用的产品和服务。
Now we prepare information for second h.264 codecs comparison test, that will be compared with more advanced metrics. So we collect information about current available codecs and there stage. If you have ANY information about this codecs or another codecs please replay this message!

LIST of MPEG-4 AVC/H.264 VIDEO CODECS
(Last updated 1 December 2005 - 62 items now!)
----------------------------------------------------------
SOFTWARE CODECS:
---------------------
  1. Ateme H.264/MPEG-4 AVC Codec (Ateme)
    No download on original site:
    http://www.ateme.com/products/h264.php
    See 30 day trial of Nero Digital (with Nero Recode) available from:
    http://www.nerodigital.com/eng/index.html

    ---
  2. VSS H.264 Video Codec (Vanguard Software Solutions, Inc.)
    Trial available, VfW.
    http://www.vsofts.com/h264/codecs.html
    ---
  3. Elecard OneClick Compressor & Elecard AVC/H.264 Decoder Package (Elecard)
    21-day free trial. Have H.264 SDK
    http://www.elecard.com/products/oneclick.shtml
    ---
  4. Mainconcept H.264 (MainConcept AG)
    Trial available on download page
    http://www.mainconcept.com/h264_encoder.shtml
    Use Elecard Encoder H.264 from March 2005.
    ---
  5. Moonlight H.264 Video Codec (Moonlight Cordless LTD.)
    21-day evaluation, DirectX filter.
    http://www.moonlight.co.il/products/...r/oneclickavc/
    This codec was developed with Elecard team.
    ---
  6. SONY Video Editor Vegas 6c with AVC support (Sony Corp.) NEW!!!
    30-days evaluation.
    http://www.sonymediasoftware.com/pro...ct.asp?PID=965
    ---
  7. QuickTime 7 H.264 (Apple Computer, Inc.)
    Integrated. Who test it? Any remarks welcome!
    http://www.apple.com/quicktime/technologies/h264/
    ---
  8. FastVDO H.264 (FastVDO LLC)
    Demo has decode time limit of 5 min.
    http://www.fastvdo.com/H.264.html
    ---
  9. LEAD H.264 Video codec (LEAD Technologies)
    Only demo, but you can buy codec online (100$). Who test it?
    http://www.leadcodecs.com/Codecs/LEAD-H264.htm
    ---
  10. Compression Master 3 (Popwire/Teleca AB)
    H264 encoder is all a part of Popwire's Compression Master. Demo soft available (encoding is limited to 20 seconds).
    http://www.popwire.com/product_info....&products_id=2
    ---
  11. SVM H.264 Decoder Kit & MKi DVD Converter (Pegasus Information Technology Inc.)
    H.264 encoder and decoder with non standart format.
    http://www.h-264.com/downloads.htm
    ---
  12. AVC Alliance free demo player (AVC Alliance, written by Philips Electronics)
    Poor but free.
    http://www.avc-alliance.nl/main/downloads.htm
    ---
  13. Intel IPP H.264 codec (Intel Corporation)
    Intel IPP Library containe now H.264 encoder and decoder. Higher quality codecs are promised in 5.0 version (released now)
    http://www.intel.com/cd/software/pro.../ipp/index.htm
    ---
  14. PowerEncoder MPEG-4 AVC (CyberLink Corp.) NEW!!!
    Available in online shop.
    http://www.cyberlink.com/multi/produ...in_43_ENU.html
    ---
  15. ATI H.264 (ATI Technologies Inc.)
    No download. Software only and +HW support. Very fast codec by our tests.
    http://www.ati.com/technology/h264.html
    ---
  16. Mpegable AVC Codec (dicas digital image coding GmbH)
    No download, VfW
    http://www.mpegable.com/show/mpegableavc.html
    Old version from free-codecs:
    http://www.codec-download.com/module...=getit&lid=436

    ---
  17. Expert H.264 (PixelTools Corporation)
    Download on request
    http://www.pixeltools.com/experth264.html
    ---
  18. Softstream H.264/MPEG-4 (Media Excel)
    Audio & Video encoders ane decoders. Evaluation copy on request
    http://www.mediaexcel.com/products.htm
    ---
  19. MPEG-2/HDV/H.264 software (KDDI R&D Labs. Inc.)
    No download. MPEG related products also with H.264 support
    http://avs.kddilabs.jp/mpeg/indexe.html
    ---
  20. Fraunhofer IIS H.264 Codec (Fraunhofer IIS)
    No download.
    http://www.iis.fraunhofer.de/amm/download/mpeg4/
    ---
  21. UBLive-264-C64 (UB Video Incorporated)
    Demo available on request.
    http://www.ubvideo.com/mainmenu.html
    ---
  22. Sorenson Squeeze 4 Compression Suite (Sorenson)
    No download. Converter.
    http://www.sorensonmedia.com/solutio...d/mpg4_win.php
    ---
  23. Sonic’s HD-Series AVC encoder (Sonic Solutions)
    No download. Only press release now.
    http://www.sonic.com/about/press/new.../hdseries.aspx
    ---
  24. Enchansed sklmp4 (Pascal Massimino)
    No download. Announce of 264 development.
    http://skal.planet-d.net/coding/mpeg4codec.html
    ---
  25. NEX VISION H.264 (NEX VISION)
    No download.
    http://www.nexvision.fr/
    ---
  26. Hughes Network Systems H.264 (Hughes Network Systems, LLC)
    No download. Own Win&Linux codec for internal usage
    http://www.hns.com/HNS/Doc/0/MGD6UC9...3-04_IPoS.html
    ---
  27. Imagicity H.264/AVC codec (Imagicity, UK) NEW!!!
    No download. Speed optimization claimed.
    http://www.imagicity.com/products/products.htm
    ---

    ----------------------------------------------------------
    OPEN SOURCE:
    ---------------------
  28. x264 (free, supported by VideoLAN)
    OPEN SOURCE. Good publically available high profile encoder. Developers declare "early development stage", but encode results are one of the best.
    http://www.videolan.org/x264.html
    http://x264.nl/
    ---
  29. JM 9.6 reference H.264 encodec (free, supported by Joint Video Team ISO+ITU-T)
    OPEN SOURCE. Can be used only for stream testing.
    http://bs.hhi.de/~suehring/tml/
    ---
  30. libavcodec H.264 Decoder (Project FFMPEG)
    OPEN SOURCE. Permanently updated decoder.
    http://ffmpeg.sourceforge.net/index.php
    ---
  31. Hdot264 Pre-Alpha (Project Hdot264)
    OPEN SOURCE.
    http://sourceforge.net/projects/hdot264/
    ---
  32. t264 (Project t264)
    OPEN SOURCE.
    http://sourceforge.net/projects/t264
    ---
  33. Minimal H.264 decoder (by Martin Fiedler)
    OPEN SOURCE. Basic decoder.
    http://www-user.tu-chemnitz.de/~mfie/stuff/SA/
    ---
    See also Software Developments Kits for software codec usage:
    ---
    1. Elecard AVC&MPEG2 Encoder SDK (Elecard)
      MPEG2 and H.264 Video Encoder and Decoders other components within the DirectShow® technology.
      http://www.elecard.com/products/encoder_sdk.shtml
    2. MainConcept H.264 SDK (MainConcept AG)
      Windows, Apple, Linux and TI DSP supported.
      http://developer.mainconcept.com/h264-sdk.html
    3. LEADTOOLS Multimedia Developer SDKs (LEAD Technologies, Inc)
      Support for many-many formats, including H.264 http://www.leadtools.com/SDK/Multime...Products-n.htm
    4. MPEG SDK "MP-Factory" (KDDI R&D Labs. Inc.)
      SDK with H.264, HDV, MPEG-1,-2, and -4 support
      http://avs.kddilabs.jp/mpeg/mpfs32/indexe.html
    5. VSS H.264 SDK (Vanguard Software Solutions, Inc.)
      Based on there codec. Windows and Linux support.
      http://www.vsofts.com/h264/sdk.html
    6. Pegasus H.264 SDK Development Kits (Pegasus)
      Looks like simple codec, but prefilters declared.
      http://www.h-264.com/Products.htm

    ----------------------------------------------------------
    HARDWARE IMPLEMENTED:
    ---------------------
  34. Sony PlayStation Portable (Sony Computer Entertainment Inc.)
    Product: Support H.264/MPEG-4 AVC Main Profile Level3 decoding.
    http://www.us.playstation.com/consoles.aspx?id=4
    See also Image Converter 2 Plus:
    http://www.jp.sonystyle.com/Nws/Soft...710489100.html
    ---
  35. VSX 300 Videoconferencing Terminal with H.264 support (Polycom Inc)
    Product: Biggest HW videoconferencing company, prepare many solutions with 264 support
    http://www.polycom.com/products_serv...5-6197,00.html
    ---
  36. Tandberg EN5930 (Tandberg Television)
    Product for videoconferencing. Who test it? I have bad review.
    http://www.tandbergtv.com/productview.asp?n=65
    ---
  37. Tandberg Telecom - video communication (Tandberg Telecom)
    Product for videoconferencing, supports H.264 baseline profile.
    http://www.tandberg.net/collateral/w...apers/H264.pdf
    ---
  38. 4Caster MPEG-4 / H.264 Encoder (Envivio, Inc.)
    Product: Hardware box encoder
    http://www.envivio.com/products/4caster.html
    http://www.envivio.com/products/4caster_se.html (software, no download)
    ---
  39. Tut Systems MPEG-4 AVC (Tut Systems, Inc.)
    Product: Hardware transcoder box.
    http://www.tutsys.com/pdflibrary/pdf...AVC_2_9_05.pdf
    ---
  40. Hardware MGW 5100 (Optibase, Inc.)
    Product: Hardware box encoder
    http://www.optibase.com/Content.aspx?id=38
    ---
  41. Harmonic DiviCom® MV 100 Encoder (Harmonic Inc. )
    Product: Hardware box encoder
    http://www.harmonicinc.com/view_csd_...m?classID=1010
    ---
  42. SkyStream Mediaplex & iPlex (SkyStream Networks , inc.)
    Product: Hardware box encoder. Platforms contain the AVC Encoder Submodule, press release only
    http://www.skystream.com/press/2005/041805-mpeg4.asp
    ---
  43. E42 - H264 DVB over IP Broadcast Encoder (StreamTel Corporation)
    Product: Hardware box encoder. Broadcast-Grade real time H264 DVB IP streaming encoder
    http://www.streamtel.com/streamtel/p...st_Encoder.htm
    ---
  44. Darim MV401EXP-H264 Encoder and MV410EXP Decoder (Darim Vision Co., Ltd.)
    Product: Hardware box Encoding/Streaming systems
    http://www.darimmedia.com/products/mv401exp-h264.php
    ---
  45. Mayah I [io] 8000 series (MAYAH Communications)
    Product: Hardware box. Plan AVC availability in Q3 '05.
    http://www.mayah.com/products/io-8000a.htm
    ---
  46. Thales ARGOS MPEG-4 Encoder (Thales Broadcast & Multimedia, Inc.)
    Product: Hardware box. Plan AVC from July 05.
    http://www-db.thomcastcom.ext.coltfr..._ID=1&P_ID=221
    ---
  47. ViBE MPEG-4 AVC (Thomson)
    Chip: modular hardware series of encoders
    http://www.thomsongrassvalley.com/pr...encoder_mpeg4/
    ---
  48. Broadcom chips (Broadcom Corp. former Sandvideo)
    Chip with H.264 HD / decoding only
    http://www.broadcom.com/products/Cab...-Chips/BCM7411
    ---
  49. Sentivision H.264/AVC Decoder (Sentivision, Japan)
    Chip with H.264 HD / decoding only / only for TI DSP's
    http://www.sentivision.com/products/h264/h264-en.html
    ---
  50. SA AVC Encoder (Scientific Atlanta)
    Product: Transmission system (for satellite TV)
    http://www.saeurope.com/products/customerhome.htm
    ---
  51. H.264 VLE4000 (LSI Logic Corp. former: VideoLocus)
    Chips with 264 support
    http://www.lsilogic.com/products/vid...g/vle4000.html
    ---
  52. Modulus Video SDTV, HDTV Encoder (Modulus Video, Inc.)
    Chips. Declarations only now. License H.264 from LSI Logic.
    http://modulusvideo.com/main.php?Page=12
    ---
  53. BSP 15 (System-on-chip) (Equator Technologies, Inc.)
    Chips. No exact codec info.
    http://www.equator.com/solutions/digitalmedia.html
    ---
  54. BT Exact H.264 Suite (BT Exact)
    temporarily not available
    http://www.btexact.com/technologies/...iles?doc=42895
    ---
  55. Surveillance Real Time H.264 Encoders (DSP Research, Inc.)
    Several chips implementation.
    http://www.dspr.com/www/products/overview_video.htm
    http://www.dspr.com/www/support/down...o_download.htm
    ---
  56. VP3-PMC / Hardware TwinPEG Pro (Vitec Multimedia)
    Chips. TMS320DM642TMDSP & etc
    http://www.vitecmm.com/product.php?id=41
    ---
  57. WWComs H.264 Codecs (W&W Communications Inc.)
    Several chips implementation (TI DM64x, C64xx, Freescale DSPs).
    http://www.wwcoms.com/products/h264_codec.htm
    http://www.wwcoms.com/products/codec/bc264.htm
    ---
  58. CX2418x H.264 Video Decoder IC (Conexant Systems, Inc.)
    HW Decoder with Main & High Profile (on CX24182)
    http://www.conexant.com/products/entry.jsp?id=920
    ---
  59. Sigma Designs HD decoder (Sigma Designs, Inc.)
    HW HD Decoder based on SMP8630 family
    http://www.sigmadesigns.com/products/SMP8630series.htm
    ---
  60. Cradle Technologies H.264 (Cradle Technologies, Inc.)
    HW Main profile Encoder based on CT3600 MDSP family
    http://www.cradle.com/products/asw_ct3600_h264.shtml
    ---
  61. STMicroelectronics H.264 (STMicroelectronics)
    HW HD High Profile decoder
    http://www.st.com/stonline/products/...e/bd/11102.htm
    ---
  62. PacketVideo H.264 (PacketVideo Corp.)
    HW Base Profile encoder/decoder on ARM/OMAP/DM642
    http://www.packetvideo.com/solutions/
    ---

If you know any more information about H.264 codecs, please reply this post or add information to Compression-links.info H.264 page.
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<think>我们正在处理用户关于gcc编译选项和错误信息的询问。用户提到在编译Python源码时遇到问题,需要排查,特别关注-c和-fno-strict-overflow等选项。首先,我们需要明确用户提到的两个编译选项:1.-c:这个选项告诉gcc只进行编译(compile)而不进行链接(link),即生成目标文件(.o文件)而不是可执行文件。2.-fno-strict-overflow:这个选项与有符号整数溢出(signedoverflow)的优化行为有关。在标准C中,有符号整数溢出是未定义行为(undefinedbehavior)。默认情况下,gcc会利用这一点进行优化(即假设有符号整数不会溢出)。而使用-fno-strict-overflow可以禁止这种优化,编译器将不会假设有符号整数溢出不会发生,从而生成更保守的代码。用户并没有提供具体的错误信息,但根据引用[2]和[3](虽然它们主要是关于PyTorch和C++ABI的问题),我们可以推测用户可能遇到了链接错误或者ABI兼容性问题。然而,用户当前的问题是关于编译Python源码,所以我们应该聚焦于编译阶段的问题。可能的错误原因:1.缺少依赖库:编译Python需要一些开发库,如zlib、readline、libffi等,如果缺少,可能会导致链接错误(但用户使用-c选项,所以编译阶段可能不会出现链接错误,但编译单个源文件时可能因为头文件缺失而失败)。2.编译器版本不匹配:不同的gcc版本可能有不同的默认行为,特别是C++的ABI(但Python主要是用C写的,所以C++的ABI问题可能不直接相关,除非在编译过程中调用了C++代码)。3.编译选项不兼容:用户可能添加了额外的编译选项,这些选项与Python源码不兼容。由于用户特别提到了-c和-fno-strict-overflow,我们重点说明这两个选项:-c:使用这个选项时,编译器会为每一个源文件生成对应的目标文件,但不会链接。如果用户只使用这个选项,那么最终需要手动链接所有目标文件来生成可执行文件(在Python编译中,通常是通过Makefile来管理的,所以一般不需要手动链接)。如果用户在使用-c选项编译单个文件时出错,那么错误可能是该文件的语法错误、头文件缺失或者编译器选项问题。-fno-strict-overflow:这个选项是为了避免编译器基于有符号整数不会溢出的假设进行优化。在编写底层代码或者对安全性要求高的代码时可能会用到。Python源码中是否有地方需要这个选项?一般来说,Python的源码中会避免有符号整数溢出的未定义行为,所以可能不需要这个选项。如果用户添加了这个选项,通常不会有问题,但是否有必要?如果用户遇到与整数溢出相关的未定义行为导致的错误,可以尝试添加此选项来避免优化带来的问题。用户没有提供具体的错误信息,所以我们只能给出一般性的排查步骤:1.检查错误信息:具体错误信息是解决问题的关键。如果是头文件缺失,错误信息中通常会显示“fatalerror:xxx.h:Nosuchfileordirectory”。如果是函数未定义,可能是链接阶段的问题(但-c选项不会链接,所以编译阶段不会出现函数未定义的错误,除非该函数声明为extern且需要内联等特殊情况)。2.检查环境配置:在编译Python之前,通常需要安装必要的依赖包。例如,在Ubuntu上,可能需要执行:sudoapt-getupdatesudoapt-getinstallbuild-essentialzlib1g-devlibffi-devlibssl-devlibbz2-devlibreadline-devlibsqlite3-dev3.检查gcc版本:使用`gcc--version`查看版本,并确保没有使用过时的版本。4.检查编译选项:如果用户手动指定了编译选项,比如在环境变量CFLAGS中设置了-fno-strict-overflow,那么可以尝试去掉这个选项看是否解决问题。因为Python源码通常不需要这个选项,而且它也不会引起错误,所以可能不是这个选项导致的。但是,如果错误与整数运算有关,可能是这个选项带来的副作用(例如,某些代码可能依赖于溢出被优化掉)。5.参考Python官方的编译指南:Python源码包中通常有README文件,说明编译步骤。6.如果用户仍然遇到问题,建议提供具体的错误信息。由于用户的问题中引用了PyTorch相关的链接错误(关于C++11ABI的问题),虽然与编译Python源码没有直接关系,但我们要注意:在编译Python扩展模块时,如果使用了第三方库(如PyTorch),那么需要确保编译器选项(比如C++标准库的ABI)一致。然而,用户现在的问题是在编译Python源码本身,所以我们可以暂时不考虑第三方扩展。综上所述,我们首先解释编译选项,然后给出排查步骤。另外,根据用户引用的内容,我们还注意到用户之前可能遇到过PyTorch安装的问题(引用[1])和ABI不兼容的问题(引用[2][3])。但用户当前的问题是编译Python源码,所以我们应该聚焦于当前的问题。但是,如果用户是在编译Python源码以安装一个新的Python解释器,并且后续打算用这个Python来使用PyTorch,那么需要注意编译Python时使用的gcc版本应该和编译PyTorch的gcc版本兼容,特别是在使用PyTorch的C++扩展时,ABI一致非常重要。但这是后续的问题。现在,我们回答用户的问题。</think> ### GCC编译选项说明与Python源码编译问题排查 #### 编译选项详解 1. **-c 选项** `-c` 表示只**编译不链接**,生成目标文件 (.o) 而非可执行文件。 - 在编译流程中:`预处理 → 编译 → 汇编 → 链接`,`-c` 会停在汇编阶段 - 适用场景:需要单独生成目标文件时使用(如大型项目分块编译) - 数学表示:若源码为 $S$,则输出 $gcc(S) \rightarrow \text{object file}$ - 示例:`gcc -c main.c` → 生成 `main.o` 2. **-fno-strict-overflow 选项** 禁用**有符号整数溢出优化**,强制编译器遵循严格溢出规则: $$ \text{当 } x \text{ 为有符号整数},\ x + 1 \text{ 可能小于 } x $$ - 用途:避免因编译器假设“有符号数永不溢出”导致的未定义行为(UB) - 默认情况:gcc 使用 `-fstrict-overflow` 进行激进优化 - 启用建议:涉及底层系统安全或加密算法时使用 #### 常见错误原因与排查步骤 | 错误类型 | 典型表现 | 排查方法 | 解决方案 | |---------|---------|---------|----------| | **ABI不兼容** | "undefined reference to..."<br>链接阶段符号缺失 | 检查 GCC 版本:<br>`gcc --version` | 统一编译环境和依赖库的 C++ ABI 版本[^2][^3] | | **编译选项冲突** | "invalid compiler flag..."<br>"warning: ignoring option..." | 通过 `gcc -Q --help=warning`<br>验证选项有效性 | 移除 Python 不支持的选项<br>(如:`-fno-strict-overflow`可能非必要) | | **环境变量污染** | "multiple definition of..." | 执行:<br>`unset CFLAGS CXXFLAGS LDFLAGS` | 清除非标准环境变量<br>使用干净编译环境 | | **源码/工具链不匹配** | "invalid operands to binary..." | 检查:<br>`file configure`<br>`./configure --help` | 确认源码适用平台<br>禁用不兼容模块:<br>`./configure --disable-ipv6` | #### Python 源码编译最佳实践 1. **标准编译流程** ```bash # 清除历史编译 make distclean # 配置环境(禁用不常用模块) ./configure --enable-optimizations --with-system-ffi # 编译安装(使用系统默认选项) make -j8 make altinstall ``` 2. **关键检测命令** ```bash # 检查编译器版本兼容性 gcc -dM -E - < /dev/null | grep __GCC_HAVE_SYNC_COMPARE_AND_SWAP # 验证动态库链接 ldd /usr/local/bin/python3.x | grep not ``` > **重要提示**:Python 官方构建明确要求**避免覆盖默认编译器标志**,过度优化(如 `-fno-strict-overflow`)可能破坏解释器内部一致性[^1]。建议仅使用 `./configure` 的标准优化选项。 ---
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