[Libav-user] avcodec_open2 error when running encoding_decodingexample
francesco at bltitalia.com
francesco at bltitalia.com
Tue Apr 26 15:06:27 CEST 2016
Hi
I solved setting a flag "Treat enum types as ints" in compiler settings.
I hope this help.
regards
At 12.56 26/04/2016 +0000, you wrote:
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>Hi
>
>I was trying to update my application to FFmpeg 3.0 but I couldn't get it work.
>
>To see what was going on I was trying to run the decoding_encoding.c
example, and I keep getting an error, even though I don't change anything
meaningful.
>
>The function returning an error is
>avcodec_open2(c, codec, NULL);
>
>with returned value -22.
>
>On the console I receive the following message:
>Could not open codec
>[libx264 @ 0000000000597180] Specified pixel format -1 is invalid or not
supported
>
>c->pix_fmt is AV_PIX_FMT_YUV420P;
>
>I tried it as well with the latest snapshot, but the error remains. I am
using windows 7 64 bit, the libraries I am using are the ones retrieved from
zeranoe.
>
>Any idea of what am I doing wrong?
>Best,
>
>
>
>
>__________ Informazioni da ESET NOD32 Antivirus, versione del database
delle firme digitali 9892 (20140604) __________
>
>Il messaggio è stato controllato da ESET NOD32 Antivirus.
>
>www.nod32.it
>
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><p class="MsoNormal">Hi<o:p></o:p></p>
><p class="MsoNormal"><o:p> </o:p></p>
><p class="MsoNormal"><span style="font-size:10.0pt;font-family:Consolas">I
was trying to update my application to FFmpeg 3.0 but I couldn’t get
it work.<o:p></o:p></span></p>
><p class="MsoNormal"><span
style="font-size:10.0pt;font-family:Consolas"><o:p> </o:p></span></p>
><p class="MsoNormal"><span style="font-size:10.0pt;font-family:Consolas">To
see what was going on I was trying to run the decoding_encoding.c example,
and I keep getting an error, even though I don’t change anything
meaningful.<o:p></o:p></span></p>
><p class="MsoNormal"><span
style="font-size:10.0pt;font-family:Consolas"><o:p> </o:p></span></p>
><p class="MsoNormal"><span
style="font-size:10.0pt;font-family:Consolas">The function returning an
error is<o:p></o:p></span></p>
><p class="MsoNormal"><span
style="font-size:9.5pt;font-family:Consolas;color:black;background:white;mso
-highlight:white">avcodec_open2(c, codec,
></span><span
style="font-size:9.5pt;font-family:Consolas;color:#6F008A;background:white;m
so-highlight:white">NULL</span><span
style="font-size:9.5pt;font-family:Consolas;color:black;background:white;mso
-highlight:white">);</span><span
style="font-size:9.5pt;font-family:Consolas;color:black"><o:p></o:p></span></p>
><p class="MsoNormal"><span
style="font-size:9.5pt;font-family:Consolas;color:black"><o:p> </o:p></
span></p>
><p class="MsoNormal"><span
style="font-size:9.5pt;font-family:Consolas;color:black">with returned value
-22.<o:p></o:p></span></p>
><p class="MsoNormal"><span
style="font-size:9.5pt;font-family:Consolas;color:black"><o:p> </o:p></
span></p>
><p class="MsoNormal"><span
style="font-size:9.5pt;font-family:Consolas;color:black">On the console I
receive the following message:<o:p></o:p></span></p>
><p class="MsoNormal"><span
style="font-size:10.0pt;font-family:Consolas">Could not open
codec<o:p></o:p></span></p>
><p class="MsoNormal"><span
style="font-size:10.0pt;font-family:Consolas">[libx264 @ 0000000000597180]
Specified pixel format -1 is invalid or not supported<o:p></o:p></span></p>
><p class="MsoNormal"><span
style="font-size:10.0pt;font-family:Consolas"><o:p> </o:p></span></p>
><p class="MsoNormal"><span
style="font-size:10.0pt;font-family:Consolas">c->pix_fmt is
></span><span
style="font-size:9.5pt;font-family:Consolas;color:darkslategray;background:w
hite;mso-highlight:white">AV_PIX_FMT_YUV420P</span><span
style="font-size:9.5pt;font-family:Consolas;color:darkslategray">;<o:p></o:p
></span></p>
><p class="MsoNormal"><span
style="font-size:10.0pt;font-family:Consolas;color:darkslategray"><o:p> 
;</o:p></span></p>
><p class="MsoNormal"><span style="font-size:10.0pt;font-family:Consolas">I
tried it as well with the latest snapshot, but the error remains. I am using
windows 7 64 bit, the libraries I am using are the ones retrieved from
zeranoe.<o:p></o:p></span></p>
><p class="MsoNormal"><span
style="font-size:10.0pt;font-family:Consolas"><o:p> </o:p></span></p>
><p class="MsoNormal"><span
style="font-size:10.0pt;font-family:Consolas">Any idea of what am I doing
wrong?<o:p></o:p></span></p>
><p class="MsoNormal"><span
style="font-size:10.0pt;font-family:Consolas">Best,<o:p></o:p></span></p>
><p class="MsoNormal"><span
style="font-size:10.0pt;font-family:Consolas"><o:p> </o:p></span></p>
></div>
><BR>
><BR>
>__________ Informazioni da ESET NOD32 Antivirus, versione del database
delle firme digitali 9892 (20140604) __________<BR>
><BR>
>Il messaggio è stato controllato da ESET NOD32 Antivirus.<BR>
><BR>
><A HREF="http://www.nod32.it">www.nod32.it</A><BR>
>
>
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* Ing. Francesco Cuzzocrea
* company: BLT Italia srl web: http://www.blt.it
* address: via Rosselli, 91 city: Lido di CAMAIORE
* country: ITALY zip: 55043-i
* Tel. : +39 0584 904788 Fax: +39 0584 904789
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