[FFmpeg-user] Windows Media Player cannot play the file

[Spencer Graves]

On 3/9/2014 7:35 PM, Tom Evans wrote:
> On Mon, Mar 10, 2014 at 12:44 AM, Spencer Graves
> <spencer.graves at prodsyse.com> wrote:
>> Hello:
>>
>>
>>        I'm getting "Windows Media Player cannot play the file. ...".
>>
>>
>>        This is the result of "ffmpeg -y -r 2 -i tst%d.png -b 300k tst.mp4"
>> with the attached .png files.  This command produced attached tst.mp4.
>> Unfortunately, it didn't play.
>>
>>
>>         Any suggestions for how to get past this would be greatly
>> appreciated.
>>
>>
>>         Also, I'd be pleased to hear comments on what might be the most
>> generally useable output formats, etc.  I'm hoping to distribute material
>> via YouTube and other outlets, and I'd like to minimize compatibility
>> problems that viewers might have.
>>
>>
>>        Thanks,
>>        Spencer
>>
>>
>> p.s.  I tried to include a "print screen" image but got a message saying it
>> was too big.  I'm happy to provide it upon request.
>>
>>
>> C:\...>ffmpeg -y -r 2 -i tst%d.png -b 300k tst.mp4
>> ffmpeg version N-61163-gd1122b7 Copyright (c) 2000-2014 the FFmpeg
>> developers
>>    built on Mar  7 2014 22:01:29 with gcc 4.8.2 (GCC)
>>    configuration: --enable-gpl --enable-version3 --disable-w32threads
>> --enable-av
>> isynth --enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnutls
>> --enab
>> le-iconv --enable-libass --enable-libbluray --enable-libcaca
>> --enable-libfreetyp
>> e --enable-libgsm --enable-libilbc --enable-libmodplug --enable-libmp3lame
>> --ena
>> ble-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg
>> --enable-l
>> ibopus --enable-librtmp --enable-libschroedinger --enable-libsoxr
>> --enable-libsp
>> eex --enable-libtheora --enable-libtwolame --enable-libvidstab
>> --enable-libvo-aa
>> cenc --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx
>> --enable-libwavp
>> ack --enable-libx264 --enable-libx265 --enable-libxavs --enable-libxvid
>> --enable
>> -zlib
>>    libavutil      52. 66.101 / 52. 66.101
>>    libavcodec     55. 52.102 / 55. 52.102
>>    libavformat    55. 33.101 / 55. 33.101
>>    libavdevice    55. 11.100 / 55. 11.100
>>    libavfilter     4.  3.100 /  4.  3.100
>>    libswscale      2.  5.101 /  2.  5.101
>>    libswresample   0. 18.100 /  0. 18.100
>>    libpostproc    52.  3.100 / 52.  3.100
>> Input #0, image2, from 'tst%d.png':
>>    Duration: 00:00:00.12, start: 0.000000, bitrate: N/A
>>      Stream #0:0: Video: png, pal8, 480x480, 25 fps, 25 tbr, 25 tbn, 25 tbc
>> Please use -b:a or -b:v, -b is ambiguous
>> No pixel format specified, yuv444p for H.264 encoding chosen.
>> Use -pix_fmt yuv420p for compatibility with outdated media players.
> Perhaps this should be in bigger letters?


Hi, Tom:  Thanks for the reply.  What "should be put in bigger 
letters?"  How can I do that?  Thanks, Spencer
>
> Cheers
>
> Tom
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