ffmpeg-libav-tutorial

ffmpeg-libav-tutorial copied to clipboard

replace AVCodec * with const AVCodec * to read codec information

5

Thanks for writing the great tutorial! I found some problem having been following your code. The return type of `avcodec_find_decoder` is changed `Avcodec*` to `const AVCodec*`. https://github.com/FFmpeg/FFmpeg/blob/master/libavcodec/codec.h#L266

developer0hye

"COM must not be in STA mode\n"

3

Hi This error occures when calling `avcodec_open2` with the `AV_CODEC_ID_H265` or `AV_CODEC_ID_H264` encoder on windows: ``` "COM must not be in STA mode\n" Could not open the codec: "Invalid argument"...

Sulisahne

fatal error: libavcodec/avcodec.h: No such file or directory

1

Hi Can anyone please help me starting my installation of FFMEG in VS Code and run first file? I have tried all possible ways but not able to solve the...

sunilstg

Misleading tutorial example

3

https://github.com/leandromoreira/ffmpeg-libav-tutorial#transmuxing It's impossible to transmux a H264 ACC MP4 into WebM without transcoding WebM only supports VP8/VP9 video and Vorbis/Opus audio

maksstach

I wonder if you could show how to use wasm of ffmpg avlib to decode 16 channels AAC to a wav buffer for reading by a backend written in javascript...

bossesand

I need streaming sources to rtmp server and I ned to fix the output PTS and add delay to prevent to send all the data in an instant that its...

calanor

How to have a colorful frames as output

3

Is it possible to have as output of the program a colorful frames, not gray images and how to do it ?

imadismail

warning messages (forced frame type (5) at 80 was changed to frame type (3)) Solution

1

I'm making a transcoder and I had a similar issue, console output  I found out, that if you copy the decoded frame to a new AVFrame and free the...

LentilStew

lance-lmwang

How to control the palying speed?

6

Will the function of "av_read_frame" run by prescribed speed?

wujilingfeng