[Libav-user] Encode video: Pro Res 422

[Gonzalo Garramuno]

On 16/05/14 17:02, Info || Non-Lethal Applications wrote:
> On 16 May 2014, at 19:02, Gonzalo Garramuno <ggarra13 at gmail.com> wrote:
>
>> On 16/05/14 10:27, Info || Non-Lethal Applications wrote:
>>> Hey there,
>>>
>>> I’m trying to encode a sequence of images into Pro Res 422 in the MOV container.
>>> I already had a look at the example: muxing.c and it looks promising.
>>>
>>> However, I can’t figure out how to tell the encoder to use ProRes instead of H.264 for MOV.
>>> Here’s what I’ve tried (mostly unaltered sample …):
>>>
>>> AVOutputFormat* pOutputFmt;
>>> AVFormatContext* pFormatCtx;
>>> AVStream* pVideoStream;
>>> AVCodec* pVideoCodec;
>>>
>>> /* Initialize libavcodec, and register all codecs and formats. */
>>> av_register_all();
>>>
>>> /* allocate the output media context */
>>> avformat_alloc_output_context2(&pFormatCtx, NULL, "mov", filename.c_str());
>>>
>> Try after that:
>>
>> pOutputFmt = pFormatCtx->oformat;
>> pOutputFmt->video_codec = AV_CODEC_ID_PRORES;
>>
>> (add stream and open codec here).
> Ok, got it. That works perfectly.
> And how would I go about defining the different Pro Res flavors? Like Proxy/LT/Standard/HQ?
My guess is that you need to modify the AVCodecContext* or pass some 
opts with set_opts.  You will need to read the source code of prores I 
am afraid.