作者gn00618777 (非常念舊)
看板Soft_Job
標題Re: [請益] ffmpeg
時間Fri Jun 20 10:03:20 2014
※ 引述《Dickon (Deacon)》之銘言：
: 版大你好，因為我沒有用ffmpeg直接操作過裝置，我上網查一下資料如下
: 先查查看裝置有支援哪種輸出格式，指令如下
: ffmpeg -f video4linux2 -list_formats all -i /dev/video0
*** THIS PROGRAM IS DEPRECATED ***
This program is only provided for compatibility and will be removed in a
future release. Please use avconv instead.
[video4linux2 @ 0x2dba0] R : yuyv422 : YUV 4:2:2 (YUYV) : 640x480
320x240 160x120 352x288 176x144 1280x1024 1600x1200
/dev/video0: Immediate exit requested
沒看到有甚麼支援的格式...
: 如果有支援已壓縮過的格式例如 mjpeg，可以試試看
: ffmpeg -f video4linux2 -input_format mjpeg -i /dev/video0 -c:v <IP>
: 如果只有raw的話，可以試試看
: ffmpeg -f video4linux2 -i /dev/video0 <IP>
ffmpeg version 0.8.12-4:0.8.12-0ubuntu0.12.04.1, Copyright (c) 2000-2014 the Libav developers
built on Jun 10 2014 15:48:32 with gcc 4.6.3
*** THIS PROGRAM IS DEPRECATED ***
This program is only provided for compatibility and will be removed in a
future release. Please use avconv instead.
[video4linux2 @ 0x2daa0] Estimating duration from bitrate, this may be
inaccurate
Input #0, video4linux2, from '/dev/video0':
Duration: N/A, start: 55158.784487, bitrate: 48660 kb/s
Stream #0.0: Video: rawvideo, yuyv422, 352x288, 48660 kb/s, 30 tbr,
1000k tbn, 30 tbc
Sat Jan 1 15:34:32 2000 127.0.0.1 - - [GET] "/cam1.ffm HTTP/1.1" 200 4149
[buffer @ 0x2ee00] w:352 h:288 pixfmt:yuyv422
[scale @ 0x2e8c0] w:352 h:288 fmt:yuyv422 -> w:320 h:240 fmt:yuv420p flags:0x4
Sat Jan 1 15:34:32 2000 127.0.0.1 - - [POST] "/cam1.ffm HTTP/1.1" 200 0
Segmentation fault
: 會segmentation fault應該是bitrate設置錯誤
: 另外建議可以先用ffmpeg編譯完成後附的ffserver.conf，先確定能跑起來，
: 再進行
另外有板友建議我看 muxer 是否有安裝，我用 ffmpeg -formats查詢
DE asf ASF format
E asf_stream ASF format
D video4linux2 Video4Linux2 device grab
====================================================================
muxer似乎是將多個串流、例如字幕、音源、影像和成某整支援的格式例如avi
encoder 似乎就是一種壓縮編碼技術例如 h.264，不知我認知對不對^^"
====================================================================
ffmpeg -codec
Codecs:
D..... = Decoding supported
.E.... = Encoding supported
..V... = Video codec
..A... = Audio codec
..S... = Subtitle codec
...S.. = Supports draw_horiz_band
....D. = Supports direct rendering method 1
.....T = Supports weird frame truncation
------
D V D 4xm 4X Movie
D V D 8bps QuickTime 8BPS video
D A D 8svx_exp 8SVX exponential
D A D 8svx_fib 8SVX fibonacci
D V D FRWU Forward Uncompressed
EV a64multi Multicolor charset for Commodore 64
EV a64multi5 Multicolor charset for Commodore 64, extended with 5th color (colram)
DEA D aac Advanced Audio Coding
D A D aac_latm AAC LATM (Advanced Audio Codec LATM syntax)
D V D aasc Autodesk RLE
DEA D ac3 ATSC A/52A (AC-3)
EA ac3_fixed ATSC A/52A (AC-3)
D A D adpcm_4xm ADPCM 4X Movie
DEA D adpcm_adx SEGA CRI ADX ADPCM
D A D adpcm_ct ADPCM Creative Technology
D A D adpcm_ea ADPCM Electronic Arts
D A D adpcm_ea_maxis_xa ADPCM Electronic Arts Maxis CDROM XA
D A D adpcm_ea_r1 ADPCM Electronic Arts R1
D A D adpcm_ea_r2 ADPCM Electronic Arts R2
D A D adpcm_ea_r3 ADPCM Electronic Arts R3
D A D adpcm_ea_xas ADPCM Electronic Arts XAS
D A D adpcm_ima_amv ADPCM IMA AMV
D A D adpcm_ima_dk3 ADPCM IMA Duck DK3
D A D adpcm_ima_dk4 ADPCM IMA Duck DK4
D A D adpcm_ima_ea_eacs ADPCM IMA Electronic Arts EACS
D A D adpcm_ima_ea_sead ADPCM IMA Electronic Arts SEAD
D A D adpcm_ima_iss ADPCM IMA Funcom ISS
DEA D adpcm_ima_qt ADPCM IMA QuickTime
D A D adpcm_ima_smjpeg ADPCM IMA Loki SDL MJPEG
DEA D adpcm_ima_wav ADPCM IMA WAV
D A D adpcm_ima_ws ADPCM IMA Westwood
DEA D adpcm_ms ADPCM Microsoft
D A D adpcm_sbpro_2 ADPCM Sound Blaster Pro 2-bit
D A D adpcm_sbpro_3 ADPCM Sound Blaster Pro 2.6-bit
D A D adpcm_sbpro_4 ADPCM Sound Blaster Pro 4-bit
DEA D adpcm_swf ADPCM Shockwave Flash
D A D adpcm_thp ADPCM Nintendo Gamecube THP
D A D adpcm_xa ADPCM CDROM XA
DEA D adpcm_yamaha ADPCM Yamaha
DEA D alac ALAC (Apple Lossless Audio Codec)
D A D als MPEG-4 Audio Lossless Coding (ALS)
D A D amrnb Adaptive Multi-Rate NarrowBand
D A D amrwb Adaptive Multi-Rate WideBand
D V amv AMV Video
D V D anm Deluxe Paint Animation
D V D ansi ASCII/ANSI art
D A D ape Monkey's Audio
DES ass Advanced SubStation Alpha subtitle
DEV D asv1 ASUS V1
DEV D asv2 ASUS V2
D A D atrac1 Atrac 1 (Adaptive TRansform Acoustic Coding)
D A D atrac3 Atrac 3 (Adaptive TRansform Acoustic Coding 3)
D V D aura Auravision AURA
D V D aura2 Auravision Aura 2
D V D avs AVS (Audio Video Standard) video
D V D bethsoftvid Bethesda VID video
D V D bfi Brute Force & Ignorance
D A D binkaudio_dct Bink Audio (DCT)
D A D binkaudio_rdft Bink Audio (RDFT)
D V binkvideo Bink video
DEV D bmp BMP image
D A D bmv_audio Discworld II BMV audio
D V bmv_video Discworld II BMV video
D V D c93 Interplay C93
D V D camstudio CamStudio
D V D camtasia TechSmith Screen Capture Codec
D V D cavs Chinese AVS video (AVS1-P2, JiZhun profile)
D V D cdgraphics CD Graphics video
D V D cinepak Cinepak
DEV D cljr Cirrus Logic AccuPak
D A D cook COOK
D V D cyuv Creative YUV (CYUV)
D A D dca DCA (DTS Coherent Acoustics)
D V D dfa Chronomaster DFA
DEV D dnxhd VC3/DNxHD
DEV dpx DPX image
D A D dsicinaudio Delphine Software International CIN audio
D V D dsicinvideo Delphine Software International CIN video
DES dvbsub DVB subtitles
DES dvdsub DVD subtitles
DEV D dvvideo DV (Digital Video)
D V D dxa Feeble Files/ScummVM DXA
D V D dxtory Dxtory
DEA D eac3 ATSC A/52 E-AC-3
D V D eacmv Electronic Arts CMV video
D V D eamad Electronic Arts Madcow Video
D V D eatgq Electronic Arts TGQ video
D V eatgv Electronic Arts TGV video
D V D eatqi Electronic Arts TQI Video
D V D escape124 Escape 124
DEV D ffv1 FFmpeg video codec #1
DEVSD ffvhuff Huffyuv FFmpeg variant
DEA D flac FLAC (Free Lossless Audio Codec)
DEV D flashsv Flash Screen Video
D V D flashsv2 Flash Screen Video v2
D V D flic Autodesk Animator Flic video
DEVSD flv Flash Video (FLV) / Sorenson Spark / Sorenson H.263
D V D fraps Fraps
DEA D g722 G.722 ADPCM
DEA D g726 G.726 ADPCM
DEV D gif GIF (Graphics Interchange Format)
D A D gsm GSM
D A D gsm_ms GSM Microsoft variant
DEV D h261 H.261
DEVSDT h263 H.263 / H.263-1996
D VSD h263i Intel H.263
EV h263p H.263+ / H.263-1998 / H.263 version 2
D V D h264 H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10
D V D h264_vdpau H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10 (VDPAU acceleration)
DEVSD huffyuv Huffyuv / HuffYUV
D V D idcinvideo id Quake II CIN video
D V D iff_byterun1 IFF ByteRun1
D V D iff_ilbm IFF ILBM
D A D imc IMC (Intel Music Coder)
D V D indeo2 Intel Indeo 2
D V indeo3 Intel Indeo 3
D V indeo4 Intel Indeo Video Interactive 4
D V indeo5 Intel Indeo Video Interactive 5
D A D interplay_dpcm DPCM Interplay
D V D interplayvideo Interplay MVE video
DEV D jpegls JPEG-LS
D V D jv Bitmap Brothers JV video
D V kgv1 Kega Game Video
D V D kmvc Karl Morton's video codec
D V D lagarith Lagarith lossless
DEA D libgsm libgsm GSM
DEA D libgsm_ms libgsm GSM Microsoft variant
DEV libschroedinger libschroedinger Dirac 2.2
DEA D libspeex libspeex Speex
EV libtheora libtheora Theora
EA libvorbis libvorbis Vorbis
DEV libvpx libvpx VP8
EV ljpeg Lossless JPEG
D V D loco LOCO
D A D mace3 MACE (Macintosh Audio Compression/Expansion) 3:1
D A D mace6 MACE (Macintosh Audio Compression/Expansion) 6:1
D V D mdec Sony PlayStation MDEC (Motion DECoder)
D V D mimic Mimic
DEV D mjpeg MJPEG (Motion JPEG)
D V D mjpegb Apple MJPEG-B
D A D mlp MLP (Meridian Lossless Packing)
D V D mmvideo American Laser Games MM Video
D V D motionpixels Motion Pixels video
D A D mp1 MP1 (MPEG audio layer 1)
D A D mp1float MP1 (MPEG audio layer 1)
DEA D mp2 MP2 (MPEG audio layer 2)
D A D mp2float MP2 (MPEG audio layer 2)
D A D mp3 MP3 (MPEG audio layer 3)
D A D mp3adu ADU (Application Data Unit) MP3 (MPEG audio layer 3)
D A D mp3adufloat ADU (Application Data Unit) MP3 (MPEG audio layer 3)
D A D mp3float MP3 (MPEG audio layer 3)
D A D mp3on4 MP3onMP4
D A D mp3on4float MP3onMP4
D A D mpc7 Musepack SV7
D A D mpc8 Musepack SV8
DEVSDT mpeg1video MPEG-1 video
D V DT mpeg1video_vdpau MPEG-1 video (VDPAU acceleration)
DEVSDT mpeg2video MPEG-2 video
DEVSDT mpeg4 MPEG-4 part 2
D V DT mpeg4_vdpau MPEG-4 part 2 (VDPAU)
D V DT mpegvideo_vdpau MPEG-1/2 video (VDPAU acceleration)
D VSDT mpegvideo_xvmc MPEG-1/2 video XvMC (X-Video Motion Compensation)
DEVSD msmpeg4 MPEG-4 part 2 Microsoft variant version 3
D VSD msmpeg4v1 MPEG-4 part 2 Microsoft variant version 1
DEVSD msmpeg4v2 MPEG-4 part 2 Microsoft variant version 2
D V D msrle Microsoft RLE
D V D msvideo1 Microsoft Video 1
D V D mszh LCL (LossLess Codec Library) MSZH
D V D mxpeg Mobotix MxPEG video
DEA D nellymoser Nellymoser Asao
D V D nuv NuppelVideo/RTJPEG
DEV D pam PAM (Portable AnyMap) image
DEV D pbm PBM (Portable BitMap) image
D A D pcm_alaw PCM A-law
D A D pcm_bluray PCM signed 16|20|24-bit big-endian for Blu-ray media
D A D pcm_dvd PCM signed 20|24-bit big-endian
D A D pcm_f32be PCM 32-bit floating point big-endian
D A D pcm_f32le PCM 32-bit floating point little-endian
D A D pcm_f64be PCM 64-bit floating point big-endian
D A D pcm_f64le PCM 64-bit floating point little-endian
D A D pcm_lxf PCM signed 20-bit little-endian planar
D A D pcm_mulaw PCM mu-law
D A D pcm_s16be PCM signed 16-bit big-endian
D A D pcm_s16le PCM signed 16-bit little-endian
D A D pcm_s16le_planar PCM 16-bit little-endian planar
D A D pcm_s24be PCM signed 24-bit big-endian
D A D pcm_s24daud PCM D-Cinema audio signed 24-bit
D A D pcm_s24le PCM signed 24-bit little-endian
D A D pcm_s32be PCM signed 32-bit big-endian
D A D pcm_s32le PCM signed 32-bit little-endian
D A D pcm_s8 PCM signed 8-bit
D A D pcm_s8_planar PCM signed 8-bit planar
D A D pcm_u16be PCM unsigned 16-bit big-endian
D A D pcm_u16le PCM unsigned 16-bit little-endian
D A D pcm_u24be PCM unsigned 24-bit big-endian
D A D pcm_u24le PCM unsigned 24-bit little-endian
D A D pcm_u32be PCM unsigned 32-bit big-endian
D A D pcm_u32le PCM unsigned 32-bit little-endian
D A D pcm_u8 PCM unsigned 8-bit
D A D pcm_zork PCM Zork
DEV D pcx PC Paintbrush PCX image
DEV D pgm PGM (Portable GrayMap) image
DEV D pgmyuv PGMYUV (Portable GrayMap YUV) image
D S pgssub HDMV Presentation Graphic Stream subtitles
D V D pictor Pictor/PC Paint
DEV D png PNG image
DEV D ppm PPM (Portable PixelMap) image
D V D prores Apple ProRes (iCodec Pro)
D V D ptx V.Flash PTX image
D A D qcelp QCELP / PureVoice
D A D qdm2 QDesign Music Codec 2
D V D qdraw Apple QuickDraw
D V D qpeg Q-team QPEG
DEV D qtrle QuickTime Animation (RLE) video
D V D r10k AJA Kona 10-bit RGB Codec
D V D r210 Uncompressed RGB 10-bit
DEV rawvideo raw video
DEA D real_144 RealAudio 1.0 (14.4K) encoder
D A D real_288 RealAudio 2.0 (28.8K)
D V D rl2 RL2 video
DEA D roq_dpcm id RoQ DPCM
DEV D roqvideo id RoQ video
D V D rpza QuickTime video (RPZA)
DEV D rv10 RealVideo 1.0
DEV D rv20 RealVideo 2.0
D V D rv30 RealVideo 3.0
D V D rv40 RealVideo 4.0
D A D s302m SMPTE 302M
DEV sgi SGI image
D A D shorten Shorten
D A D sipr RealAudio SIPR / ACELP.NET
D A D smackaud Smacker audio
D V D smackvid Smacker video
D V D smc QuickTime Graphics (SMC)
DEV D snow Snow
D A D sol_dpcm DPCM Sol
D V D sp5x Sunplus JPEG (SP5X)
D S srt SubRip subtitle
D V D sunrast Sun Rasterfile image
DEV D svq1 Sorenson Vector Quantizer 1 / Sorenson Video 1 / SVQ1
D VSD svq3 Sorenson Vector Quantizer 3 / Sorenson Video 3 / SVQ3
DEV D targa Truevision Targa image
D VSD theora Theora
D V D thp Nintendo Gamecube THP video
D V D tiertexseqvideo Tiertex Limited SEQ video
DEV D tiff TIFF image
D V D tmv 8088flex TMV
D A D truehd TrueHD
D V D truemotion1 Duck TrueMotion 1.0
D V D truemotion2 Duck TrueMotion 2.0
D A D truespeech DSP Group TrueSpeech
D A D tta True Audio (TTA)
D A D twinvq VQF TwinVQ
D V D txd Renderware TXD (TeXture Dictionary) image
D V D ultimotion IBM UltiMotion
D V D utvideo Ut Video
DEV D v210 Uncompressed 4:2:2 10-bit
D V D v210x Uncompressed 4:2:2 10-bit
DEV D v410 Uncompressed 4:4:4 10-bit
D V vb Beam Software VB
D V D vble VBLE Lossless Codec
D V D vc1 SMPTE VC-1
D V D vc1_vdpau SMPTE VC-1 VDPAU
D V D vc1image Windows Media Video 9 Image v2
D V D vcr1 ATI VCR1
D A D vmdaudio Sierra VMD audio
D V D vmdvideo Sierra VMD video
D V D vmnc VMware Screen Codec / VMware Video
DEA D vorbis Vorbis
D VSD vp3 On2 VP3
D V D vp5 On2 VP5
D V D vp6 On2 VP6
D V D vp6a On2 VP6 (Flash version, with alpha channel)
D V D vp6f On2 VP6 (Flash version)
D V D vp8 On2 VP8
D V D vqavideo Westwood Studios VQA (Vector Quantized Animation) video
D A D wavpack WavPack
D A D wmapro Windows Media Audio 9 Professional
DEA D wmav1 Windows Media Audio 1
DEA D wmav2 Windows Media Audio 2
D A D wmavoice Windows Media Audio Voice
DEVSD wmv1 Windows Media Video 7
DEVSD wmv2 Windows Media Video 8
D V D wmv3 Windows Media Video 9
D V D wmv3_vdpau Windows Media Video 9 VDPAU
D V D wmv3image Windows Media Video 9 Image
D V D wnv1 Winnov WNV1
D A D ws_snd1 Westwood Audio (SND1)
D A D xan_dpcm DPCM Xan
D V D xan_wc3 Wing Commander III / Xan
D V D xan_wc4 Wing Commander IV / Xxan
D V D xl Miro VideoXL
DES xsub DivX subtitles (XSUB)
D V yop Psygnosis YOP Video
DEV D zlib LCL (LossLess Codec Library) ZLIB
DEV D zmbv Zip Motion Blocks Video
--
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※ 編輯: gn00618777 (122.146.76.147), 06/20/2014 10:10:22
→ qrtt1:ffmpeg -codecs 06/20 10:10
※ 編輯: gn00618777 (122.146.76.147), 06/20/2014 10:18:22
※ 編輯: gn00618777 (122.146.76.147), 06/20/2014 10:24:15
推 Bencrie:大大你裝的是 libav 不是 ffmpeg 06/20 10:44
※ 編輯: gn00618777 (211.21.170.157), 06/20/2014 10:45:25
→ Bencrie:libav 是從 ffmpeg fork 出來的 06/20 10:45
→ gn00618777:..這我有在ffmpeg官網獲得這消息，可是我仍然搞不懂 06/20 10:48
→ gn00618777:這兩種差別，這會導致我現在的問題嗎.. 06/20 10:49
→ gn00618777:我在裝置下 ffmpeg -f video4linux2 -i /dev/video0 ca 06/20 10:49
→ gn00618777:m1.asf 他可以錄製且可以在裝置上播放 06/20 10:50