error in transcoding audio from mp3 to aac about ffmpeg-libav-tutorial

[leandromoreira]

@EdsionYeh the msg you're posting as an error message seems to be a warn only, what was the output?

[EdsionYeh]

with

  sp.copy_video = 1;

I got a bunch of such msgs and then Segmentation fault

[aac @ 0x5633867f8a80] nb_samples (1152) > frame_size (1024)
[aac @ 0x5633867f8a80] nb_samples (1152) > frame_size (1024)
[aac @ 0x5633867f8a80] nb_samples (1152) > frame_size (1024)
[aac @ 0x5633867f8a80] nb_samples (1152) > frame_size (1024)
[aac @ 0x5633867f8a80] nb_samples (1152) > frame_size (1024)
[aac @ 0x5633867f8a80] nb_samples (1152) > frame_size (1024)
[aac @ 0x5633867f8a80] nb_samples (1152) > frame_size (1024)
[aac @ 0x5633867f8a80] nb_samples (1152) > frame_size (1024)
Segmentation fault

The output file size looks reasonable, but it is not playable, It is very likely that av_write_trailer didn't get a chance to be called.

with

  sp.copy_video = 0;

I got

[aac @ 0x561f16315600] nb_samples (1152) > frame_size (1024)
[aac @ 0x561f16315600] nb_samples (1152) > frame_size (1024)
[aac @ 0x561f16315600] nb_samples (1152) > frame_size (1024)
[mp4 @ 0x561f15f32280] Application provided invalid, non monotonically increasing dts to muxer in stream 0: 512 >= 0
LOG: Error -22 while receiving packet from decoder: Invalid argument

The output video file is only 48 bytes in size