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Whenever I start watching AVI videos with embedded H.264 video codec the first scene frames are shown only partially.

My interpretation is that these are delta B-frames.

Have a look at the following snapshot to get an impression:

http://www.picfront.org/d/9lfy

After the first full I-frame everything works fine.

On the other hand other video player like MediaPlayer Classic HomeCinema CAN play them successfully from the first moment on.

So this shows that there is a problem in VLC (and not in the video file).

Can I solve it with a special VLC setting?

Thomas

Could you solve this?
I'm seeing the same and like to improve this.

No, unfortunately not.

depends on what you expect.
Since the packetizer is in the loop, the first frame is already iframe. I suspect open GOP

see avcodec settings -> show corrupted frames

Where do I find excately this preference:

avcodec settings -> show corrupted frames

doest not exist in 2.2
use Nightly Build of VLC

How stable are these nightly builds?
I did not yet test if this solves my issue. However, I'd need this for a system in production / at a customer ... and on a Raspberry.

Your mux is invalid and should start on iframe.
You have the option of dropping corrupted frames in 3.0, but that's just hiding the issue like other does.

I have these issues in an IPTV project - h.264 video, transport is rtp.
The IPTV sources as well as the network are not under my control. Once the stream is playing, there are no issues.

I see VLC 3 is in RC state. Is there any expectation regarding a release?
What is VLC 4?

If you use RTSP as input, this is expected and happens on time synchronization.
Check RTSP sync message in logs.

It is h.264 video and AC3 audio in MP2TS, using multicast RTP.
Look here.
There are no RTSP sync messages.
Debug output (level warning):
avcodec warning: threaded frame decoding is not compatible with DXVA2, disabled
ts warning: first packet for pid=145 cc=0xd
ts warning: first packet for pid=146 cc=0x7
ts warning: first packet for pid=144 cc=0xb
packetizer_h264 warning: waiting for SPS/PPS
packetizer_h264 warning: waiting for SPS/PPS
packetizer_h264 warning: waiting for SPS/PPS
packetizer_h264 warning: waiting for SPS/PPS
packetizer_h264 warning: waiting for SPS/PPS
packetizer_h264 warning: waiting for SPS/PPS
packetizer_h264 warning: waiting for SPS/PPS
packetizer_h264 warning: waiting for SPS/PPS
packetizer_h264 warning: waiting for SPS/PPS
packetizer_h264 warning: waiting for SPS/PPS
packetizer_h264 warning: waiting for SPS/PPS
packetizer_h264 warning: waiting for SPS/PPS
packetizer_h264 warning: waiting for SPS/PPS
packetizer_h264 warning: waiting for SPS/PPS
packetizer_h264 warning: waiting for SPS/PPS
packetizer_h264 warning: waiting for SPS/PPS
packetizer_h264 warning: waiting for SPS/PPS
packetizer_h264 warning: waiting for SPS/PPS
packetizer_h264 warning: waiting for SPS/PPS
packetizer_h264 warning: waiting for SPS/PPS
packetizer_h264 warning: waiting for SPS/PPS
packetizer_h264 warning: waiting for SPS/PPS
packetizer_h264 warning: waiting for SPS/PPS
packetizer_h264 warning: waiting for SPS/PPS
packetizer_h264 warning: waiting for SPS/PPS
packetizer_h264 warning: waiting for SPS/PPS
packetizer_h264 warning: waiting for SPS/PPS
packetizer_h264 warning: waiting for SPS/PPS
packetizer_h264 warning: waiting for SPS/PPS
packetizer_h264 warning: waiting for SPS/PPS
packetizer_h264 warning: waiting for SPS/PPS
packetizer_h264 warning: waiting for SPS/PPS
packetizer_h264 warning: waiting for SPS/PPS
packetizer_h264 warning: waiting for SPS/PPS
packetizer_h264 warning: waiting for SPS/PPS
packetizer_h264 warning: waiting for SPS/PPS
packetizer_h264 warning: waiting for SPS/PPS
packetizer_h264 warning: waiting for SPS/PPS
packetizer_h264 warning: waiting for SPS/PPS
packetizer_h264 warning: waiting for SPS/PPS
packetizer_h264 warning: waiting for SPS/PPS
packetizer_h264 warning: waiting for SPS/PPS
packetizer_h264 warning: waiting for SPS/PPS
packetizer_h264 warning: waiting for SPS/PPS
packetizer_h264 warning: waiting for SPS/PPS
packetizer_h264 warning: waiting for SPS/PPS
packetizer_h264 warning: waiting for SPS/PPS
packetizer_h264 warning: waiting for SPS/PPS
core warning: buffer too late (-130389 us): dropped
core warning: buffer too late (-106389 us): dropped
core warning: buffer too late (-82389 us): dropped
core warning: buffer too late (-64389 us): dropped
packetizer_h264 warning: waiting for SPS/PPS
core warning: playback too late (101583): up-sampling
direct3d warning: trying surface pixel format: YV12
avcodec warning: plane 0 not aligned
avcodec warning: disabling direct rendering
core warning: playback way too late (301311): flushing buffers
core warning: playback way too early (-1042126): playing silence
core warning: playback too late (62690): up-sampling
core warning: playback too early (-47017): down-sampling
core warning: timing screwed (drift: -94890 us): stopping resampling
core warning: playback too early (-91890): down-sampling
core warning: playback way too early (-135487): playing silence
core warning: playback too early (-43183): down-sampling
core warning: picture is too late to be displayed (missing 38 ms)
core warning: picture is too late to be displayed (missing 1078 ms)
core warning: timing screwed (drift: -90732 us): stopping resampling
core warning: playback too early (-85732): down-sampling
core warning: playback way too early (-129117): playing silence
core warning: playback too early (-43024): down-sampling
core warning: timing screwed (drift: -88810 us): stopping resampling
core warning: playback too early (-89789): down-sampling
core warning: playback way too early (-127536): playing silence
core warning: playback too early (-42611): down-sampling
core warning: timing screwed (drift: -91379 us): stopping resampling
core warning: playback too early (-99379): down-sampling
core warning: playback way too early (-140752): playing silence
core warning: playback too early (-42919): down-sampling
core warning: timing screwed (drift: -91128 us): stopping resampling
core warning: playback too early (-92128): down-sampling
core warning: playback way too early (-139664): playing silence
core warning: can't get output picture
core warning: can't get output picture

remove filters

sorry, I'm not aware that I have set any ... may I ask you to be a bit more specific

dump your file or check yourself if that's opengop

dump your file or check yourself if that's opengop

Here's a short recording

I see no artifact on this. You really have frame drop on that sample?

The issue is only visible upon a new start(join) to a stream. Once its playing, it's ok.
You're right, when I play the sample again I also don't see anything at all that's wrong. The recording was taken on an already playing stream with TSreader pro from an in-house transcoder source.
I may need to get a sample from the customers project fur better analysis - see if its open GOP, number of B an P, ..... though I don't have a tool to analyze this stuff.

In one my own transcoders I can set P frames [0..30] and B frames [1..3], as well as the H.264 profile and some more - The other one has no settings.

I still think that the new feature to suppress corrupt frames will help me once VLC3 is released.
Of course, it will take longer to start/show the program, but it will not start with corrupted pictures and even if I can nail the streams they use at the project as the issue, I'll probably don't have a chance to change anything there.

There's no feature to remove corrupted frames. You can't just start decoding outside of an iframe.

Then I misunderstood the option available in 3 you mentioned earlier: see avcodec settings -> show corrupted frames
As I understood this allows to suppress corrupted frames upon start of a stream (only). If that's wrong, what is the suggestion to not have VLC showing a picture before the picture is OK (see the sample of the OP)?