The VideoLAN Forums

Posted: **11 Nov 2023 04:49**

I cant figure out why mp4 videos are choppy, stutter, lag, or dont play at all

The steps ive taken to fix are....

tried to convert/change bps, fps, resolution
change cache value
turn off hardware acceleration
compatibility mode
disable/change decoding
change video output module
re-encode file
copy file to new container
change container format
reinstall vlc
reinstall operating system

$ vlc --version
VLC media player 3.0.20 Vetinari (revision 3.0.20-0-g6f0d0ab126b)
VLC version 3.0.20 Vetinari (3.0.20-0-g6f0d0ab126b)
Compiled by Debian buildd for bookworm-security on Debian amd64 buildd (Oct 29 2023 20:14:38)
Compiler: gcc version 12.2.0 (Debian 12.2.0-14)

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$ uname -a
Linux mycpu1 6.1.0-13-amd64 #1 SMP PREEMPT_DYNAMIC Debian 6.1.55-1 (2023-09-29) x86_64 GNU/Linux

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System:
  Kernel: 6.1.0-13-amd64 [6.1.55-1] arch: x86_64 bits: 64 compiler: gcc v: 12.2.0
    parameters: BOOT_IMAGE=/boot/vmlinuz-6.1.0-13-amd64 root=/dev/mapper/vg_main-lv_root ro quiet
    splash init=/lib/systemd/systemd
  Desktop: Xfce v: 4.18.1 tk: Gtk v: 3.24.36 info: xfce4-panel wm: xfwm v: 4.18.0 vt: 7
    dm: LightDM v: 1.26.0 Distro: MX-23.1_x64 Libretto October 15  2023 base: Debian GNU/Linux 12
    (bookworm)

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CPU:
  Info: model: AMD A8-7410 APU with AMD Radeon R5 Graphics bits: 64 type: MCP arch: Puma level: v2
    built: 2014-15 process: GF 28nm family: 0x16 (22) model-id: 0x30 (48) stepping: 1
    microcode: 0x7030105
  Topology: cpus: 1x cores: 4 smt: <unsupported> cache: L1: 256 KiB desc: d-4x32 KiB; i-4x32 KiB
    L2: 2 MiB desc: 1x2 MiB
  Speed (MHz): avg: 999 high: 1000 min/max: 1000/2200 boost: enabled scaling:
    driver: acpi-cpufreq governor: ondemand cores: 1: 1000 2: 1000 3: 1000 4: 998 bogomips: 17567

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Graphics:
  Device-1: AMD Mullins [Radeon R4/R5 Graphics] vendor: Dell driver: radeon v: kernel
    alternate: amdgpu arch: GCN-2 code: Sea Islands process: GF/TSMC 16-28nm built: 2013-17 ports:
    active: eDP-1 empty: HDMI-A-1 bus-ID: 00:01.0 chip-ID: 1002:9851 class-ID: 0300
  Device-2: Microdia Integrated Webcam HD type: USB driver: uvcvideo bus-ID: 2-2:3
    chip-ID: 0c45:6712 class-ID: 0e02
  Display: x11 server: X.Org v: 1.21.1.7 compositor: xfwm v: 4.18.0 driver: X: loaded: radeon
    unloaded: fbdev,modesetting,vesa dri: radeonsi gpu: radeon display-ID: :0.0 screens: 1
  Screen-1: 0 s-res: 1366x768 s-dpi: 96 s-size: 361x203mm (14.21x7.99") s-diag: 414mm (16.31")
  Monitor-1: eDP-1 mapped: eDP model: BOE Display 0x0627 built: 2014 res: 1366x768 hz: 60
    dpi: 112 gamma: 1.2 size: 309x173mm (12.17x6.81") diag: 389mm (15.3") ratio: 16:9, 15:9 modes:
    max: 1366x768 min: 640x480
  API: OpenGL v: 4.5 Mesa 22.3.6 renderer: KABINI ( LLVM 15.0.6 DRM 2.50 6.1.0-13-amd64)
    direct-render: Yes

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$ ffmpeg -i S1140001.MP4 -hide_banner

[mov,mp4,m4a,3gp,3g2,mj2 @ 0x55eaba1a6d80] st: 0 edit list: 1 Missing key frame while searching for timestamp: 3003
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x55eaba1a6d80] st: 0 edit list 1 Cannot find an index entry before timestamp: 3003.
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'S1140001.MP4':
  Metadata:
    major_brand     : mp42
    minor_version   : 1
    compatible_brands: mp42avc1
    creation_time   : 2023-10-01T11:13:10.000000Z
  Duration: 00:00:29.03, start: 0.000000, bitrate: 61654 kb/s
  Stream #0:0[0x1](eng): Video: h264 (High) (avc1 / 0x31637661), yuv420p(tv, bt709, progressive), 3840x2160 [SAR 1:1 DAR 16:9], 61382 kb/s, 29.97 fps, 29.97 tbr, 90k tbn (default)
    Metadata:
      creation_time   : 2023-10-01T11:13:10.000000Z
      vendor_id       : [0][0][0][0]
  Stream #0:1[0x2](eng): Audio: aac (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 253 kb/s (default)
    Metadata:
      creation_time   : 2023-10-01T11:13:10.000000Z
      vendor_id       : [0][0][0][0]
At least one output file must be specified

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$ ffprobe -v error -show_format -show_streams S1140001.MP4

[STREAM]
index=0
codec_name=h264
codec_long_name=H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10
profile=High
codec_type=video
codec_tag_string=avc1
codec_tag=0x31637661
width=3840
height=2160
coded_width=3840
coded_height=2160
closed_captions=0
film_grain=0
has_b_frames=1
sample_aspect_ratio=1:1
display_aspect_ratio=16:9
pix_fmt=yuv420p
level=51
color_range=tv
color_space=bt709
color_transfer=bt709
color_primaries=bt709
chroma_location=left
field_order=progressive
refs=1
is_avc=true
nal_length_size=4
id=0x1
r_frame_rate=30000/1001
avg_frame_rate=30000/1001
time_base=1/90000
start_pts=0
start_time=0.000000
duration_ts=2612610
duration=29.029000
bit_rate=61382276
max_bit_rate=N/A
bits_per_raw_sample=8
nb_frames=870
nb_read_frames=N/A
nb_read_packets=N/A
extradata_size=483
DISPOSITION:default=1
DISPOSITION:dub=0
DISPOSITION:original=0
DISPOSITION:comment=0
DISPOSITION:lyrics=0
DISPOSITION:karaoke=0
DISPOSITION:forced=0
DISPOSITION:hearing_impaired=0
DISPOSITION:visual_impaired=0
DISPOSITION:clean_effects=0
DISPOSITION:attached_pic=0
DISPOSITION:timed_thumbnails=0
DISPOSITION:captions=0
DISPOSITION:descriptions=0
DISPOSITION:metadata=0
DISPOSITION:dependent=0
DISPOSITION:still_image=0
TAG:creation_time=2023-10-01T11:13:10.000000Z
TAG:language=eng
TAG:vendor_id=[0][0][0][0]
[/STREAM]
[STREAM]
index=1
codec_name=aac
codec_long_name=AAC (Advanced Audio Coding)
profile=unknown
codec_type=audio
codec_tag_string=mp4a
codec_tag=0x6134706d
sample_fmt=fltp
sample_rate=48000
channels=2
channel_layout=stereo
bits_per_sample=0
id=0x2
r_frame_rate=0/0
avg_frame_rate=0/0
time_base=1/48000
start_pts=0
start_time=0.000000
duration_ts=1393392
duration=29.029000
bit_rate=253375
max_bit_rate=N/A
bits_per_raw_sample=N/A
nb_frames=1363
nb_read_frames=N/A
nb_read_packets=N/A
extradata_size=2
DISPOSITION:default=1
DISPOSITION:dub=0
DISPOSITION:original=0
DISPOSITION:comment=0
DISPOSITION:lyrics=0
DISPOSITION:karaoke=0
DISPOSITION:forced=0
DISPOSITION:hearing_impaired=0
DISPOSITION:visual_impaired=0
DISPOSITION:clean_effects=0
DISPOSITION:attached_pic=0
DISPOSITION:timed_thumbnails=0
DISPOSITION:captions=0
DISPOSITION:descriptions=0
DISPOSITION:metadata=0
DISPOSITION:dependent=0
DISPOSITION:still_image=0
TAG:creation_time=2023-10-01T11:13:10.000000Z
TAG:language=eng
TAG:vendor_id=[0][0][0][0]
[/STREAM]
[FORMAT]
filename=S1140001.MP4
nb_streams=2
nb_programs=0
format_name=mov,mp4,m4a,3gp,3g2,mj2
format_long_name=QuickTime / MOV
start_time=0.000000
duration=29.029000
size=223719741
bit_rate=61654136
probe_score=100
TAG:major_brand=mp42
TAG:minor_version=1
TAG:compatible_brands=mp42avc1
TAG:creation_time=2023-10-01T11:13:10.000000Z
[/FORMAT]

Here's paste from VLC "Tools" "Messages"

https://paste.debian.net/1297852/

I have tried to best of my ability to

choose correct forum
clear and specific topic line
provide details best i can
format it correctly and show what ive tried

Ive already asked for help here once but did not get any feedback. Im respectfully asking for anyone to please help in any way shape or form.
Either way your time is appreciated, thank you

Posted: **11 Nov 2023 12:14**

It seems your hardware decoder is struggling to keep the pace. Try disabling hardware decoding and/or changing video output

The VideoLAN Forums

mp4 video doesnt play, stutters, lags, or skips

mp4 video doesnt play, stutters, lags, or skips

Re: mp4 video doesnt play, stutters, lags, or skips