Re: [Libav-user] Can't find encoder

There is noting else we can do to help you out, since you provide little valuable information. OK, firstly make sure that you already registered the codecs. check the API avcodec_register_all() On Thursday, November 15, 2012 02:17:44 PM FFMPEG wrote: > Hi, > > My avcodec_find_encoder(CODEC_

[Libav-user] Mixes multiple audio inputs into a single output.

ost this question, please correct me. Thanks BRs Alan ___ Libav-user mailing list Libav-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/libav-user

Re: [Libav-user] Mixes multiple audio inputs into a single output.

On Thursday 24 January 2013 09:36:11 Carl Eugen Hoyos wrote: > Please test current git head, filter_complex is a fairly > new option that has seen some improvements since. Thanks for your suggestion Carl. ___ Libav-user mailing list Libav-user@ffmpeg.or

[Libav-user] How to determine library capabilities per version

Given an FFmpeg version, (preferably older version 0.11.1), how can I determine the follow that is supported by libav: 1. Max H264 decoding (and encoding) level supported. For a table of levels see https://en.wikipedia.org/wiki/H.264/MPEG-4_AVC 2. If hardware decoding is supported (on Windows or

[Libav-user] MXF muxer generates incomplete file

with ffmpeg and mxf files? FYI: I am not using ffmpeg's codec(s) as I have a hardware DNX encoder so I'm just using libavformat. Thanks in advance! Alan -- *"Whatever you can do, or dream you can do, begin it. Boldness has genius, power, an

Re: [Libav-user] MXF muxer generates incomplete file

Thanks for responding so quickly. I haven't tried but I'm guessing not mainly because we don't use anything other than libavformat. I'll give it a try just in case. Thanks! Alan > On Mar 28, 2017, at 3:00 PM, Carl Eugen Hoyos wrote: > > 2017-03-28 22:09 GMT

[Libav-user] H264 Packed RGB Decoding

Hello, Is there a way for FFmpeg to decode an H264 bitstream into packed RGB? Ideally AV_PIX_FMT_BGR0 or AV_PIX_FMT_BGRA. For the encoder, I am using libx264rgb with AV_PIX_FMT_BGR0. For the decoder, I am using AV_CODEC_ID_H264. However, the frame comes back from the decoder as AV_PIX_F

Re: [Libav-user] H264 Packed RGB Decoding

> Presumably if you really did feed the encoder BGR0 (which is a packed > format), something converted it to planar format prior to encoding. > The ffmpeg program will automatically insert swscale into the filter > pipeline to convert packed to planar as would have been required by > the encode

Re: [Libav-user] H264 Packed RGB Decoding

> No but as Devin correctly explained the software scaler should not add a lot > of latency compared to the 4:4:4 decoding. Perhaps I am doing something wrong then. swscale always takes a long time for me: ~10 ms for GBRP -> BGRA ~30 ms for YUV420P -> BGRA I haven't fully looked into min

Re: [Libav-user] H264 Packed RGB Decoding

> Do you have assembly SIMD disabled? nasm/yasm is installed? I believe SIMD is enabled. What's a good way to check? In my config.h, SIMD, SSE, and AVX external defines are set to 1. I have nasm and yasm. - Alan___ Libav-user mailing list Libav-

[Libav-user] H264 SEI Information from libavcodec/libavformat

Hi, Is there anyway to add a h264 NAL (SEI Timecode) unit to an existing stream without access libavcodec source (i.e. only linking against the DLL)? ___ Libav-user mailing list Libav-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/libav-user To uns

Re: [Libav-user] H264 SEI Information from libavcodec/libavformat

une 2021 8:18:22 PM AEST you wrote: > > > On Friday, 25 June 2021 6:00:24 PM AEST Alan Johnson wrote: > > > > Is there anyway to add a h264 NAL (SEI Timecode) unit to an existing > > >>stream > > > > > > > without access libavcodec source (i.