-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 > > Well, I'm a newb in video, but it was suggested to me by someone who uses > it, so I wanted to try.
Mplayer comes with a program called mencoder, which will do your video encoding. Its a bit more "hands on" but it is excellent once you learn it. > > My underling thing, if anyone can make other suggestions, is that my camera > broke, and I had to get > one in a hurry, and didn't really know what to look for. I wound up with a > fairly good Sanyo 1080p camera > and video recorder that's super light, and not too expensive. The problem > is that its videos are MP4s, > which are definitely not ready to put on a web site, and I know nothing > about transcoding. My previous > camera took acceptable .avi videos, which had worked with most folks > browsers. The MP4s are huge > and in a weakly supported format. IIRC, isnt MP4 just a container? what are the video codecs and audio codecs in the file? If they are 264 and mp3, you should be able to use HTML5 for them natively. MP4 is actually gaining alot of support in many OSes due to it being part of the HTML5 spec. If you need help with video transcoding, i'm happy to assist you as it makes up a small part of what i do in the work place. Just send me an email. (inde...@internode.on.net) The basic run down is that you have a container format, that holds an audio and video stream. the container, has no part to play in what the video or audio codecs are, only the storage of subtitles and other metadata. Generally, with a program like mencoder you would use mencoder -vo <video codec> -ao <audio codec> -o file.<container extension> In the majority of cases, it is the video codec, not the container that holds the issues, especially with the use of weird video codecs. (such as myself who is fighting with someone convinced they want to use real video still .....) Thus if your camera is producing MP4, you should find out what video and audio codecs it is outputting. This can be done with mplayer from the command line, as when it opens a file it gives output similar to this bash-3.2$ mplayer /Volumes/Storage/Videos/Butterfly_Total_Remix_Pro.flv MPlayer UNKNOWN-4.2.1 (C) 2000-2009 MPlayer Team 141 audio & 304 video codecs Playing /Volumes/Storage/Videos/Butterfly_Total_Remix_Pro.flv. libavformat file format detected. [lavf] Video stream found, -vid 0 [lavf] Audio stream found, -aid 1 VIDEO: [FLV1] 320x240 0bpp 24.000 fps 336.4 kbps (41.1 kbyte/s) Clip info: duration: 229 videodatarate: 329 lastkeyframetimestamp: 229 lastkeyframelocation: 9435531 creator: YouTube, Inc. metadatacreator: YouTube Metadata Injector. haskeyframes: true hasmetadata: true ========================================================================== Opening video decoder: [ffmpeg] FFmpeg's libavcodec codec family Selected video codec: [ffflv] vfm: ffmpeg (FFmpeg Flash video) ========================================================================== ========================================================================== Opening audio decoder: [mp3lib] MPEG layer-2, layer-3 AUDIO: 22050 Hz, 2 ch, s16le, 8.0 kbit/1.13% (ratio: 1000->88200) Selected audio codec: [mp3] afm: mp3lib (mp3lib MPEG layer-2, layer-3) ========================================================================== AO: [coreaudio] 22050Hz 2ch s16le (2 bytes per sample) Starting playback... VDec: vo config request - 320 x 240 (preferred colorspace: Planar YV12) Could not find matching colorspace - retrying with -vf scale... Opening video filter: [scale] VDec: using Planar YV12 as output csp (no 0) Movie-Aspect is undefined - no prescaling applied. SwScaler: reducing / aligning filtersize 1 -> 4 SwScaler: reducing / aligning filtersize 1 -> 4 SwScaler: reducing / aligning filtersize 1 -> 1 SwScaler: reducing / aligning filtersize 5 -> 4 [swscaler @ 0x100838a00]BICUBIC scaler, from yuv420p to yuyv422 using MMX2 [swscaler @ 0x100838a00]using 4-tap MMX scaler for horizontal luminance scaling [swscaler @ 0x100838a00]using 4-tap MMX scaler for horizontal chrominance scaling [swscaler @ 0x100838a00]using n-tap MMX scaler for vertical scaling (BGR) [swscaler @ 0x100838a00]320x240 -> 320x240 VO: [corevideo] 320x240 => 320x240 Packed YUY2 [ASPECT] Warning: No suitable new res found! A: 3.2 V: 3.2 A-V: -0.007 ct: 0.184 0/ 0 2% 5% 2.2% 0 0 MPlayer interrupted by signal 2 in module: sleep_timer A: 3.3 V: 3.2 A-V: 0.050 ct: 0.188 0/ 0 2% 5% 2.2% 0 0 Exiting... (Quit) The sections you are interested in, are between the ==== signs. They tell you it is a Flash video, with MP3 audio. You can also see it is a flash container. It may be worth running one of your videos with mplayer to find what codecs they are using. > > I'm somewhere on the learning curve, obviously, but having trouble getting > coherent advice. Yes, its always difficult to work out the good from the bad. Im sure we have all been at that stage, and its why email lists like this are here to help. You get to see alot of opinions and you can choose the one that suits you best, as well as test some of the ideas we give you. :) > > Kevin O'Gorman, PhD William Brown pgp.mit.edu -----BEGIN PGP SIGNATURE----- Version: GnuPG/MacGPG2 v2.0.14 (Darwin) iQIcBAEBAgAGBQJMaMNdAAoJEHF16AnLoz6J2PEQAIj+cJCE6bEBe3TmBaf0D2Bq WBmDWdz+VQONVHBC0bdHMDQv4ED3gGsCHLGNfHxtMSZey1s5x4IGG4+S5QrbIz12 U6vt7D/8VvJzj3zsawCn/puP16KJ4tsJ+WS4yr6MtUO+aL9Opq398if8tvv1xA7z KgeCW007RfLWimGHwmiKJrQ3kXmSuP+jFk3I7TmHNXrknXhpGPCr1vRwkJo+ueMc 5WWUKztoTbYPDZfAhiE6jmqlIgixuU2fnxLzl3JYeHX/b6bvzD1bQum6+D7QaGd0 xknAsQwojms+6QsrGoM22grLeMDqdxl8M6sH91sMfz9xroXMPum4PaTXzntlm3jF VHIPWq7VkHCt8DiTAg/dwZONN+wqPI01IjF5pFNVGNNpvGCPqX1hQ/lbX6EQXs5c gh3iPTD3V74eBaOcuHRlUEBcxu9csk2CKA7jFENND6lTJ6Abm94L2wBJms7HW1ZG Knbzv8HgBYVVKWrlSzuP2lJsc0uKUT9ptH5ED8snd+/zPYH0VNMLFK975nPKm6Ru RLBrvGTb3SPo9HkzKHHsh6PGNQPQdyUrjKKXxB5+UB6l9JG/rmQAstic3sCRPeQ8 x5w2F6NrzBfevVURTULUL8nTye8Ge56VnIfzyEoWeUOn1YZ8ZSijO6WaXF153fDu CfxIL9otqhWU/OVQFDzM =rUff -----END PGP SIGNATURE-----
