Hello,
I'd like to make a batch file for FFplay that shows only the first frame
of a video until the window is closed. It should also work for still
images. This command line works for still images and for most videos,
but not for all:
ffplay -loop 0 -t 0 -x 500 -an %1
Below is the console output for a video where it doesn't work. I saw
these three messages:
[mov,mp4,m4a,3gp,3g2,mj2 @ 000001e8bef96180] st: 0 edit list: 1 Missing
key frame while searching for timestamp: 1000
[mov,mp4,m4a,3gp,3g2,mj2 @ 000001e8bef96180] st: 0 edit list 1 Cannot
find an index entry before timestamp: 1000.
[h264 @ 000001e8c4a4fc00] co located POCs unavailable
I have two questions:
1. How must the command line be modified to make it work with all videos?
2. Any idea how to show the n_th frame of a video?
Thanks,
Michael
C:\Users\astro\Desktop>c:\ffmpeg\ffplay -loop 0 -t 0 -x 500 -an
C:\Users\astro\Desktop\Schnee.MOV
ffplay version 2023-08-10-git-d9d5695390-essentials_build-www.gyan.dev
Copyright (c) 2003-2023 the FFmpeg developers
built with gcc 12.2.0 (Rev10, Built by MSYS2 project)
configuration: --enable-gpl --enable-version3 --enable-static
--disable-w32threads --disable-autodetect --enable-fontconfig
--enable-iconv --enable-gnutls --enable-libxml2 --enable-gmp
--enable-bzlib --enable-lzma --enable-zlib --enable-libsrt
--enable-libssh --enable-libzmq --enable-avisynth --enable-sdl2
--enable-libwebp --enable-libx264 --enable-libx265 --enable-libxvid
--enable-libaom --enable-libopenjpeg --enable-libvpx
--enable-mediafoundation --enable-libass --enable-libfreetype
--enable-libfribidi --enable-libharfbuzz --enable-libvidstab
--enable-libvmaf --enable-libzimg --enable-amf --enable-cuda-llvm
--enable-cuvid --enable-ffnvcodec --enable-nvdec --enable-nvenc
--enable-d3d11va --enable-dxva2 --enable-libvpl --enable-libgme
--enable-libopenmpt --enable-libopencore-amrwb --enable-libmp3lame
--enable-libtheora --enable-libvo-amrwbenc --enable-libgsm
--enable-libopencore-amrnb --enable-libopus --enable-libspeex
--enable-libvorbis --enable-librubberband
libavutil 58. 16.101 / 58. 16.101
libavcodec 60. 23.100 / 60. 23.100
libavformat 60. 10.100 / 60. 10.100
libavdevice 60. 2.101 / 60. 2.101
libavfilter 9. 10.100 / 9. 10.100
libswscale 7. 3.100 / 7. 3.100
libswresample 4. 11.100 / 4. 11.100
libpostproc 57. 2.100 / 57. 2.100
[mov,mp4,m4a,3gp,3g2,mj2 @ 000001e8bef96180] st: 0 edit list: 1 Missing
key frame while searching for timestamp: 1000
[mov,mp4,m4a,3gp,3g2,mj2 @ 000001e8bef96180] st: 0 edit list 1 Cannot
find an index entry before timestamp: 1000.
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'C:\Users\astro\Desktop\Schnee.MOV':
Metadata:
major_brand : qt
minor_version : 537986816
compatible_brands: qt pana
creation_time : 2021-01-27T12:28:58.000000Z
com.panasonic.Semi-Pro.metadata.xml: <?xml version="1.0"
encoding="UTF-8" standalone="no" ?>
: <ClipMain
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance";
xmlns="urn:schemas-Professional-Plug-in:Semi-Pro:ClipMetadata:v1.0">
: <ClipContent>
:
<GlobalClipID>060A2B340101010501010D2113000000BF61E24950BF563460541060C1650131</GlobalClipID>
: <Duration>4056</Duration>
: <EditUnit>1/24</EditUnit>
: <EssenceList>
: <Video>
: <Codec BitRate="100">H264_420_LongGOP</Codec>
: <ActiveLine>1080</ActiveLine>
: <ActivePixel>1920</ActivePixel>
: <BitDepth>8</BitDepth>
: <FrameRate>24p</FrameRate>
: <VFRRatio
VRFRState="constant">24/180</VFRRatio>
: <TimecodeType>NonDrop</TimecodeType>
: <StartTimecode>17:30:54:21</StartTimecode>
: </Video>
: <Audio>
: <Channel>2</Channel>
: <SamplingRate>48000</SamplingRate>
: <BitsPerSample>16</BitsPerSample>
: </Audio>
: </EssenceList>
: <ClipMetadata>
: <Rating>0</Rating>
: <Access>
:
<CreationDate>2021-01-27T12:28:58+02:00</CreationDate>
:
<LastUpdateDate>2021-01-27T12:28:58+02:00</LastUpdateDate>
: </Access>
: <Device>
: <Manufacturer>Panasonic</Manufacturer>
: <ModelName>DC-GH5S</ModelName>
: </Device>
: <Shoot>
: <StartDate>2021-01-27T12:28:58+02:00</StartDate>
: </Shoot>
: </ClipMetadata>
: </ClipContent>
: <UserArea>
: <AcquisitionMetadata
xmlns="urn:schemas-Professional-Plug-in:P2:CameraMetadata:v1.2">
: <CameraUnitMetadata>
: <Gamma>
: <CaptureGamma>STANDARD</CaptureGamma>
: </Gamma>
: <Gamut>
: <CaptureGamut>BT.709</CaptureGamut>
: </Gamut>
: </CameraUnitMetadata>
: </AcquisitionMetadata>
: </UserArea>
: </ClipMain>
:
Duration: 00:02:49.00, start: 0.000000, bitrate: 26146 kb/s
Stream #0:0[0x1](und): Video: h264 (High) (avc1 / 0x31637661),
yuv420p(tv, bt709, progressive), 1920x1080 [SAR 1:1 DAR 16:9], 24596
kb/s, 24 fps, 24 tbr, 24k tbn (default)
Metadata:
creation_time : 2021-01-27T12:28:58.000000Z
vendor_id : [0][0][0][0]
timecode : 17:30:54:21
Stream #0:1[0x2](und): Audio: pcm_s16be (twos / 0x736F7774), 48000
Hz, 2 channels, s16, 1536 kb/s (default)
Metadata:
creation_time : 2021-01-27T12:28:58.000000Z
vendor_id : pana
timecode : 17:30:54:21
Stream #0:2[0x3](und): Data: none (tmcd / 0x64636D74), 0 kb/s (default)
Metadata:
creation_time : 2021-01-27T12:28:58.000000Z
timecode : 17:30:54:21
[h264 @ 000001e8c4a4fc00] co located POCs unavailable
[h264 @ 000001e8c4a4fc00] co located POCs unavailable 0B f=0/0
[h264 @ 000001e8c4a4fc00] co located POCs unavailable 0B f=0/0
[h264 @ 000001e8c4a4fc00] co located POCs unavailable 0B f=0/0
[h264 @ 000001e8c4a4fc00] co located POCs unavailable 0B f=0/0
[h264 @ 000001e8c4a4fc00] co located POCs unavailable 0B f=0/0
[h264 @ 000001e8c4a4fc00] co located POCs unavailable 0B f=0/0
[h264 @ 000001e8c4a4fc00] co located POCs unavailable 0B f=0/0
[h264 @ 000001e8c4a4fc00] co located POCs unavailable 0B f=0/0
[h264 @ 000001e8c4a4fc00] co located POCs unavailable 0B f=0/0
[h264 @ 000001e8c4a4fc00] co located POCs unavailable 0B f=0/0
[h264 @ 000001e8c4a4fc00] co located POCs unavailable 0B f=0/0
[h264 @ 000001e8c4a4fc00] co located POCs unavailable 0B f=0/0
[h264 @ 000001e8c4a4fc00] co located POCs unavailable 0B f=0/0
[h264 @ 000001e8c4a4fc00] co located POCs unavailable 0B f=0/0
[h264 @ 000001e8c4a4fc00] co located POCs unavailable 0B f=0/0
[h264 @ 000001e8c4a4fc00] co located POCs unavailable 0B f=0/0
[h264 @ 000001e8c4a4fc00] co located POCs unavailable 0B f=0/0
Terminate batch job (Y/N)?
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