For the MOV files with most FFmpeg’s PCM implementations, the sample size is incorrectly identified as 16 bits

Software:

• ffmpeg version 4.0.2
• vlc-4.0.0-20181128-1208-dev-win64

Notes:

• In the logs, I removed all lines beginning with “lua debug:”.
• The files come from the bug:21537.

---

Logs:

• pcm_mulaw
  • line 53 → […] sample size 16 […]
• others
  • line 55 → […] sample size 16 […]
  • line 105 → […] bits/sample:16

= Codec =	= File =	= Log =
pcm_f32be	out_pcmf32be_side.mov	out_pcmf32be_side.log
pcm_f32le	out_pcmf32le_side.mov	out_pcmf32le_side.log
pcm_f64be	out_pcmf64be_side.mov	out_pcmf64be_side.log
pcm_f64le	out_pcmf64le_side.mov	out_pcmf64le_side.log
pcm_mulaw	out_pcmmulaw_side.mov	out_pcmmulaw_side.log
pcm_s24be	out_pcms24be_side.mov	out_pcms24be_side.log
pcm_s24le	out_pcms24le_side.mov	out_pcms24le_side.log
pcm_s32be	out_pcms32be_side.mov	out_pcms32be_side.log
pcm_s32le	out_pcms32le_side.mov	out_pcms32le_side.log

/streams/samples/mov/PCM