- mplayer
- ffmpeg
- mencoder
- ffprobe
1) mplayer: simple inspection
[sodo@computer tmp]$ mplayer -vo null -benchmark part1.mp4
MPlayer SVN-r33996-4.6.1 (C) 2000-2011 MPlayer Team
mplayer: could not connect to socket
mplayer: No such file or directory
Failed to open LIRC support. You will not be able to use your remote control.
# PLAYBACK STARTS
Playing part1.mp4.
# CONTAINER INSPECTION
libavformat file format detected.
# MPLAYER USES libavformat PLAYBACK for this VIDEO STREAM
[lavf] stream 0: video (h264), -vid 0
[lavf] stream 1: audio (aac), -aid 0, -alang und
VIDEO: [H264] 1280x720 24bpp 29.970 fps 2946.5 kbps (359.7 kbyte/s)
Clip info:
major_brand: mp42
minor_version: 0
compatible_brands: isommp42
creation_time: 2012-02-18 19:44:00
# CHECK FOR SUBTITLES
Load subtitles in ./
# DECODE VIDEO USING FFMPEG
==========================================================================
Opening video decoder: [ffmpeg] FFmpeg's libavcodec codec family
Selected video codec: [ffh264] vfm: ffmpeg (FFmpeg H.264)
==========================================================================
# DECODE AUDIO USING FFMPEG
==========================================================================
Opening audio decoder: [ffmpeg] FFmpeg/libavcodec audio decoders
AUDIO: 44100 Hz, 2 ch, s16le, 152.0 kbit/10.77% (ratio: 18997->176400)
Selected audio codec: [ffaac] afm: ffmpeg (FFmpeg AAC (MPEG-2/MPEG-4 Audio))
==========================================================================
# USE DISCOVERED AUDIO DEVICE
AO: [pulse] 44100Hz 2ch s16le (2 bytes per sample)
Starting playback...
Unsupported PixelFormat 61
Unsupported PixelFormat 53
Movie-Aspect is undefined - no prescaling applied.
VO: [null] 1280x720 => 1280x720 Planar YV12
A: 1.3 V: 1.3 A-V: 0.001 ct: 0.033 0/ 0 23% 0% 0.4% 0 0
Exiting... (Quit)
2) mplayer: detailed information
[sodo@computer tmp]$ mplayer -v part1.mp4 -frames 0
MPlayer SVN-r33996-4.6.1 (C) 2000-2011 MPlayer Team
# YOUR COMPUTER STATS
CPU vendor name: GenuineIntel max cpuid level: 10
CPU: Intel(R) Xeon(R) CPU E5310 @ 1.60GHz (Family: 6, Model: 15, Stepping: 7)
extended cpuid-level: 8
extended cache-info: 268468288
Detected cache-line size is 64 bytes
CPUflags: MMX: 1 MMX2: 1 3DNow: 0 3DNowExt: 0 SSE: 1 SSE2: 1 SSSE3: 1
# MPLAYER BUILD STATS
Compiled with runtime CPU detection.
get_path('codecs.conf') -> '/home/sodo/.mplayer/codecs.conf'
Reading optional codecs config file /home/sodo/.mplayer/codecs.conf: No such file or directory
Reading optional codecs config file /etc/mplayer/codecs.conf: No such file or directory
Using built-in default codecs.conf.
init_freetype
Using MMX (with tiny bit MMX2) Optimized OnScreenDisplay
get_path('fonts') -> '/home/sodo/.mplayer/fonts'
Configuration: --prefix=/usr --bindir=/usr/bin --datadir=/usr/share/mplayer --mandir=/usr/share/man --confdir=/etc/mplayer --libdir=/usr/lib64 --codecsdir=/usr/lib64/codecs --extra-cflags=-O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector --param=ssp-buffer-size=4 -m64 -mtune=generic --language=all --enable-joystick --enable-lirc --enable-menu --enable-radio --enable-radio-capture --enable-runtime-cpudetection --enable-unrarexec --disable-dvdread-internal --disable-libdvdcss-internal --disable-nemesi --disable-smb --disable-ffmpeg_a --disable-faac --disable-mad --disable-libmpeg2-internal --disable-tremor-internal --disable-bitmap-font --disable-dga1 --disable-dga2 --disable-directfb --disable-svga --disable-termcap --enable-xvmc --with-xvmclib=XvMCW --disable-arts --disable-esd --disable-jack --disable-openal
CommandLine: '-v' 'part1.mp4' '-nosound' '-frames' '0'
Using nanosleep() timing
# MPLAYER CONFIG PATH SEARCH
get_path('input.conf') -> '/home/sodo/.mplayer/input.conf'
Reading optional input config file /home/sodo/.mplayer/input.conf: No such file or directory
Parsing input config file /etc/mplayer/input.conf
Input config file /etc/mplayer/input.conf parsed: 92 binds
Setting up LIRC support...
mplayer: could not connect to socket
mplayer: No such file or directory
Failed to open LIRC support. You will not be able to use your remote control.
get_path('part1.mp4.conf') -> '/home/sodo/.mplayer/part1.mp4.conf'
# PLAYBACK STARTS
Playing part1.mp4.
get_path('sub/') -> '/home/sodo/.mplayer/sub/'
[file] File size is 282308395 bytes
# META INFORMATION
STREAM: [file] part1.mp4
STREAM: Description: File
STREAM: Author: Albeu
STREAM: Comment: based on the code from ??? (probably Arpi)
# CONTAINER INSPECTION
LAVF_check: QuickTime/MPEG-4/Motion JPEG 2000 format
libavformat file format detected.
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x35a00e4c00]ISO: File Type Major Brand: mp42
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x35a00e4c00]All info found
# VIDEO STREAM INSPECTION, frame sizes/compression type
==> Found video stream: 0
======= VIDEO Format ======
biSize 79
biWidth 1280
biHeight 720
biPlanes 0
biBitCount 24
biCompression 875967048='H264'
biSizeImage 2764800
Unknown extra header dump: [1] [64] [0] [1f] [ff] [e1] [0] [18] [67] [64] [0] [1f] [ac] [24] [88] [5] [0] [5b] [a1] [0] [0] [3] [3] [e9] [0] [0] [ea] [60] [f] [18] [32] [a0] [1] [0] [4] [68] [ee] [3c] [b0]
===========================
[lavf] stream 0: video (h264), -vid 0
# AUDIO STREAM INSPECTION
==> Found audio stream: 1
======= WAVE Format =======
Format Tag: 20557 (0x504D)
Channels: 2
Samplerate: 44100
avg byte/sec: 18997
Block align: 1
bits/sample: 16
cbSize: 2
Unknown extra header dump: [12] [10]
==========================================================================
# MPLAYER USES libavformat PLAYBACK for this VIDEO STREAM
[lavf] stream 1: audio (aac), -aid 0, -alang und
LAVF: 1 audio and 1 video streams found
LAVF: build 3436288
VIDEO: [H264] 1280x720 24bpp 29.970 fps 2946.5 kbps (359.7 kbyte/s)
[V] filefmt:44 fourcc:0x34363248 size:1280x720 fps:29.970 ftime:=0.0334
Clip info:
major_brand: mp42
minor_version: 0
compatible_brands: isommp42
creation_time: 2012-02-18 19:44:00
# CHECK FOR SUBTITLES
Load subtitles in ./
get_path('sub/') -> '/home/sodo/.mplayer/sub/'
# CHECK X11 STATS
X11 opening display: :0
vo: X11 color mask: FFFFFF (R:FF0000 G:FF00 B:FF)
vo: X11 running at 2560x1024 with depth 24 and 32 bpp (":0" => local display)
[x11] Detected wm supports layers.
[x11] Using workaround for Metacity bugs.
[x11] Detected wm supports NetWM.
[x11] Detected wm supports ABOVE state.
[x11] Detected wm supports BELOW state.
[x11] Detected wm supports FULLSCREEN state.
[x11] Current fstype setting honours FULLSCREEN ABOVE BELOW X atoms
# DECODE VIDEO USING FFMPEG
==========================================================================
Opening video decoder: [ffmpeg] FFmpeg's libavcodec codec family
INFO: libavcodec init OK!
Selected video codec: [ffh264] vfm: ffmpeg (FFmpeg H.264)
==========================================================================
==========================================================================
# DECODE AUDIO USING FFMPEG
Opening audio decoder: [ffmpeg] FFmpeg/libavcodec audio decoders
dec_audio: Allocating 192000 + 65536 = 257536 bytes for output buffer.
FFmpeg's libavcodec audio codec
INFO: libavcodec "aac" init OK!
AUDIO: 44100 Hz, 2 ch, s16le, 152.0 kbit/10.77% (ratio: 18997->176400)
Selected audio codec: [ffaac] afm: ffmpeg (FFmpeg AAC (MPEG-2/MPEG-4 Audio))
==========================================================================
# PREPARE TO PLAYBACK AUDIO
Building audio filter chain for 44100Hz/2ch/s16le -> 0Hz/0ch/??...
[libaf] Adding filter dummy
[dummy] Was reinitialized: 44100Hz/2ch/s16le
[dummy] Was reinitialized: 44100Hz/2ch/s16le
# FIND SUITABLE AUDIO DEVICE
Trying preferred audio driver 'pulse', options '[none]'
AO: [pulse] 44100Hz 2ch s16le (2 bytes per sample)
AO: Description: PulseAudio audio output
AO: Author: Lennart Poettering
Building audio filter chain for 44100Hz/2ch/s16le -> 44100Hz/2ch/s16le...
[dummy] Was reinitialized: 44100Hz/2ch/s16le
[dummy] Was reinitialized: 44100Hz/2ch/s16le
Starting playback...
Increasing filtered audio buffer size from 0 to 46144
Unsupported PixelFormat 61
Unsupported PixelFormat 53
[ffmpeg] aspect_ratio: 0.000000
# FIND SUITABLE PLAYBACK COLORSPACE
VDec: vo config request - 1280 x 720 (preferred colorspace: Planar YV12)
Trying filter chain: vo
VDec: using Planar YV12 as output csp (no 0)
Movie-Aspect is undefined - no prescaling applied.
# VIDEO OUTPUT CONFIGURATION (using NVIDIA)
VO Config (1280x720->1280x720,flags=0,'MPlayer',0x32315659)
VO: [vdpau] 1280x720 => 1280x720 Planar YV12
VO: Description: VDPAU with X11
VO: Author: Rajib Mahapatra
[vdpau] Updating CSC matrix for BT.601
*** [vo] Exporting mp_image_t, 1280x720x12bpp YUV planar, 1382400 bytes
Unicode font: 5179 glyphs.
Unicode font: 5179 glyphs.
A: 1.0 V: 1.0 A-V: 0.002 ct: 0.032 0/ 0 33% 10% 0.4% 0 0
Uninit audio filters...
[libaf] Removing filter dummy
Uninit audio: ffmpeg
Uninit video: ffmpeg
vo: uninit ..
3) ffmpeg
This option is nice because it gives you a count of the frames and bitrates.
[sodo@computer tmp]$ ffmpeg -i part1.mp4 -an -vcodec copy -f avi -y NUL
# FFMPEG BUILD STATS
ffmpeg version 0.7.11-rpmfusion, Copyright (c) 2000-2011 the FFmpeg developers
built on Feb 25 2012 08:39:28 with gcc 4.6.1 20110908 (Red Hat 4.6.1-9)
configuration: --prefix=/usr --bindir=/usr/bin --datadir=/usr/share/ffmpeg --incdir=/usr/include/ffmpeg --libdir=/usr/lib64 --mandir=/usr/share/man --arch=x86_64 --extra-cflags='-O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector --param=ssp-buffer-size=4 -m64 -mtune=generic' --extra-version=rpmfusion --enable-bzlib --enable-libcelt --enable-libdc1394 --enable-libdirac --enable-libfaac --enable-nonfree --enable-libfreetype --enable-libgsm --enable-libmp3lame --enable-libopenjpeg --enable-librtmp --enable-libschroedinger --enable-libspeex --enable-libtheora --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libxvid --enable-x11grab --enable-avfilter --enable-postproc --enable-pthreads --disable-static --enable-shared --enable-gpl --disable-debug --disable-stripping --shlibdir=/usr/lib64 --enable-runtime-cpudetect
libavutil 50. 43. 0 / 50. 43. 0
libavcodec 52.123. 0 / 52.123. 0
libavformat 52.111. 0 / 52.111. 0
libavdevice 52. 5. 0 / 52. 5. 0
libavfilter 1. 80. 0 / 1. 80. 0
libswscale 0. 14. 1 / 0. 14. 1
libpostproc 51. 2. 0 / 51. 2. 0
# CONTAINER INSPECTION
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'part1.mp4':
# META INFORMATION: INPUT
Metadata:
major_brand : mp42
minor_version : 0
compatible_brands: isommp42
creation_time : 2012-02-18 19:44:00
Duration: 00:12:08.29, start: 0.000000, bitrate: 3101 kb/s
# VIDEO STREAM INSPECTION: INPUT
Stream #0.0(und): Video: h264 (High), yuv420p, 1280x720, 2946 kb/s, 29.97 fps, 29.97 tbr, 60k tbn, 59.94 tbc
Metadata:
creation_time : 1970-01-01 00:00:00
# AUDIO STREAM INSPECTION: INPUT
Stream #0.1(und): Audio: aac, 44100 Hz, stereo, s16, 151 kb/s
Metadata:
creation_time : 2012-02-18 19:44:26
# META INFORMATION: OUTPUT
Output #0, avi, to 'NUL':
Metadata:
major_brand : mp42
minor_version : 0
compatible_brands: isommp42
creation_time : 2012-02-18 19:44:00
ISFT : Lavf52.111.0
# VIDEO STREAM INSPECTION: OUTPUT
Stream #0.0(und): Video: libx264, yuv420p, 1280x720, q=2-31, 2946 kb/s, 29.97 tbn, 29.97 tbc
Metadata:
creation_time : 1970-01-01 00:00:00
Stream mapping:
Stream #0.0 -> #0.0
Press [q] to stop, [?] for help
# SUMMARY STATS: frames, bitrates
frame=21827 fps= 0 q=-1.0 Lsize= 262481kB time=00:12:08.29 bitrate=2952.4kbits/s
video:261953kB audio:0kB global headers:0kB muxing overhead 0.201505%
4) mencoder
Mencoder's kbit/s differs from ffmpegs..hmmm?
[sodo@computer tmp]$ mencoder -nosound -ovc frameno -vc null -o /dev/null part1.mp4
MEncoder SVN-r33996-4.6.1 (C) 2000-2011 MPlayer Team
# STARTUP STATUS
success: format: 0 data: 0x0 - 0x10d3af2b
# META INFORMATION: INPUT
libavformat file format detected.
[lavf] stream 0: video (h264), -vid 0
[lavf] stream 1: audio (aac), -aid 0, -alang und
# VIDEO STREAM INSPECTION: INPUT
VIDEO: [H264] 1280x720 24bpp 29.970 fps 2946.5 kbps (359.7 kbyte/s)
[V] filefmt:44 fourcc:0x34363248 size:1280x720 fps:29.970 ftime:=0.0334
Writing header...
ODML: Aspect information not (yet?) available or unspecified, not writing vprp header.
Writing header...
ODML: Aspect information not (yet?) available or unspecified, not writing vprp header.
Pos: 728.3s 21827f (100%) 7165.79fps Trem: 0min 0mb A-V:0.000 [0:0]
Writing index...
Writing header...
ODML: Aspect information not (yet?) available or unspecified, not writing vprp header.
# BITRATE CALCULATIONS FOR MEDIA BURN
Recommended video bitrate for 650MB CD: 7480
Recommended video bitrate for 700MB CD: 8055Recommended video bitrate for 800MB CD: 9207
Recommended video bitrate for 2 x 650MB CD: 14966
Recommended video bitrate for 2 x 700MB CD: 16118
Recommended video bitrate for 2 x 800MB CD: 18422
# SUMMARY STATS: frames, bitrates
Video stream: 0.959 kbit/s (119 B/s) size: 87308 bytes 728.294 secs 21827 frames
5) ffprobe
[sodo@computer tmp]$ ffprobe -loglevel error -show_streams GOPR0078.MP4
ffprobe version 0.7.13, Copyright (c) 2007-2011 the FFmpeg developers
built on Aug 1 2012 21:08:35 with clang 3.1 (tags/Apple/clang-318.0.58)
configuration: --prefix=/opt/local --enable-swscale --enable-avfilter --enable-libmp3lame --enable-libvorbis --enable-libtheora --enable-libdirac --enable-libschroedinger --enable-libopenjpeg --enable-libvpx --enable-libspeex --disable-libopencore-amrnb --disable-libopencore-amrwb --mandir=/opt/local/share/man --enable-shared --enable-pthreads --cc=/usr/bin/clang --arch=x86_64 --enable-yasm --enable-gpl --enable-postproc --enable-libx264 --enable-libxvid
libavutil 50. 43. 0 / 50. 43. 0
libavcodec 52.123. 0 / 52.123. 0
libavformat 52.111. 0 / 52.111. 0
libavdevice 52. 5. 0 / 52. 5. 0
libavfilter 1. 80. 0 / 1. 80. 0
libswscale 0. 14. 1 / 0. 14. 1
libpostproc 51. 2. 0 / 51. 2. 0
[STREAM]
index=0
codec_name=h264
codec_long_name=H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10
codec_type=video
codec_time_base=1001/120000
codec_tag_string=avc1
codec_tag=0x31637661
width=1280
height=720
has_b_frames=1
sample_aspect_ratio=1:1
display_aspect_ratio=16:9
pix_fmt=yuv420p
r_frame_rate=60000/1001
avg_frame_rate=60000/1001
time_base=1/90000
start_time=0.000000
duration=489.655833
nb_frames=29350
TAG:creation_time=2012-01-08 12:43:14
TAG:language=eng
[/STREAM]
[STREAM]
index=1
codec_name=aac
codec_long_name=Advanced Audio Coding
codec_type=audio
codec_time_base=0/1
codec_tag_string=mp4a
codec_tag=0x6134706d
sample_rate=48000.000000
channels=2
bits_per_sample=0
r_frame_rate=0/0
avg_frame_rate=375/8
time_base=1/48000
start_time=0.000000
duration=489.642667
nb_frames=22952
TAG:creation_time=2012-01-08 12:43:14
TAG:language=eng
[/STREAM]
Appendix
Comparing the meta info of different output video streams
a. get frame and bitrate stats for a video, ffmpeg using -f avi
[sodo@computer tmp]$ ffmpeg -i part1.mp4 -an -vcodec copy -f avi -y NUL
# META INFORMATION: OUTPUT
Output #0, avi, to 'NUL':
Metadata:
major_brand : mp42
minor_version : 0
compatible_brands: isommp42
creation_time : 2012-02-18 19:44:00
ISFT : Lavf52.111.0
Stream #0.0(und): Video: libx264, yuv420p, 1280x720, q=2-31, 2946 kb/s, 29.97 tbn, 29.97 tbc
Metadata:
creation_time : 1970-01-01 00:00:00
..
frame=21827 fps= 0 q=-1.0 Lsize= 262481kB time=00:12:08.29 bitrate=2952.4kbits/s
video:261953kB audio:0kB global headers:0kB muxing overhead 0.201505%
b. get frame and bitrate stats for a video, ffmpeg, using -f mpeg2video
Output will be mostly the same as above, but I suspect the differences in Lsize and bitrate is due to my forcing the format of the output stream to mpeg2video
[sodo@computer tmp]$ ffmpeg -i part1.mp4 -an -vcodec copy -f mpeg2video -y NUL
..
# META INFORMATION: OUTPUT
Output #0, mpeg2video, to 'NUL':
Metadata:
major_brand : mp42
minor_version : 0
compatible_brands: isommp42
creation_time : 2012-02-18 19:44:00
encoder : Lavf52.111.0
Stream #0.0(und): Video: libx264, yuv420p, 1280x720, q=2-31, 2946 kb/s, 90k tbn, 29.97 tbc
Metadata:
creation_time : 1970-01-01 00:00:00
..
frame=21827 fps= 0 q=-1.0 Lsize= 261953kB time=00:12:08.29 bitrate=2946.5kbits/s
video:261953kB audio:0kB global headers:0kB muxing overhead 0.000000%
c. ffmpeg, using rawvideo, -f yuv4mpegpipe
This one takes some time, as I've removed the option specifying ffmpeg to copy the same video stream so that ffmpeg actually transcodes the video stream into the raw video format, yuv4mpegpipe.
[sodo@computer tmp]$ ffmpeg -threads 8 -i part1.mp4 -an -f yuv4mpegpipe -y NUL
..
# META INFORMATION: OUTPUT
Output #0, yuv4mpegpipe, to 'NUL':
Metadata:
major_brand : mp42
minor_version : 0
compatible_brands: isommp42
creation_time : 2012-02-18 19:44:00
encoder : Lavf52.111.0
Stream #0.0(und): Video: rawvideo, yuv420p, 1280x720, q=2-31, 200 kb/s, 90k tbn, 29.97 tbc
Metadata:
creation_time : 1970-01-01 00:00:00
..
frame=21827 fps= 46 q=0.0 Lsize=29466578kB time=00:12:08.29 bitrate=331446.0kbits/s
video:0kB audio:0kB global headers:0kB muxing overhead inf%
References
Mplayer FAQ# convert/transcode a video to rawvideo format, but just inspect the header
ffmpeg -i part1.mp4 -pix_fmt yuv420p -f yuv4mpegpipe - | head -1
# convert/transcode a video to rawvideo format
ffmpeg -i part1.mp4 -an -f yuv4mpegpipe -y NUL
http://ffmpeg.org/faq.html
http://ffmpeg.org/ffprobe.html
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