[Libav-user] AVStream->codec deprecation

[salsaman]

On Sun, Aug 21, 2016 at 10:44 PM, Perette Barella <perette at barella.org>
wrote:

> On 2016年08月21日, at 21:31, salsaman <salsaman at gmail.com> wrote:
>
>
> Here we go, I can answer definitively now:
>
> https://ffmpeg.org/doxygen/3.1/ffplay_8c_source.html
>
>
> AVCodecContext <https://ffmpeg.org/doxygen/3.1/structAVCodecContext.html>
> *avctx;
>
> avctx = avcodec_alloc_context3
> <https://ffmpeg.org/doxygen/3.1/group__lavc__core.html#gae80afec6f26df6607eaacf39b561c315>
> (NULL
> <https://ffmpeg.org/doxygen/3.1/coverity_8c.html#a070d2ce7b6bb7e5c05602aa8c308d0c4>
> );
> if (!avctx)
>    return AVERROR
> <https://ffmpeg.org/doxygen/3.1/group__lavu__error.html#gae4bb6f165973d09584e0ec0f335f69ca>
> (ENOMEM);
>
> ret = avcodec_parameters_to_context
> <https://ffmpeg.org/doxygen/3.1/group__lavc__core.html#gac7b282f51540ca7a99416a3ba6ee0d16>
> (avctx, ic->streams
> <https://ffmpeg.org/doxygen/3.1/structAVFormatContext.html#acfefb6b6cf21e87a0dcbd1a547ba2348>
> [stream_index]->codecpar
> <https://ffmpeg.org/doxygen/3.1/structAVStream.html#a12826d21779289356722971d362c583c>
> );
> if (ret < 0)
>   goto fail
> <https://ffmpeg.org/doxygen/3.1/checkasm_8h.html#a73a3b169ac8c3419cbe15327e75ffcfd>
> ;
>
>
> You are explaining what replaces codec parameter setting, which I have
> already familiarized myself with.  This does not answer the question I
> originally asked, which is how I am to call avcodec_close (and other
> functions) which require an AVCodecContext, when that field is deprecated.
> Using avformat_new_stream’s docucomments specify these calls are necessary
> to clean up when done with the stream.
>
> Perette
>
>

Just use avctx from the code above. I don' t see what the problem is.


Gabriel.







>
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