On 4/24/11 10:15 AM, Stefan Lederer wrote:
Hello,
Hi
I'm developing adaptive dynamic http streaming over http (DASH) using VLC for my master thesis at university. In this scenario I receive segmented MP4 content which is downloaded via http . This content can have different bitrates (which works quite well) and also different resolution (that's the problem). My problem is that the VLC player crashes when I switch from one resolution content (e.g. 720p) to another resolution (e.g. 1080p) during playback. The problem occurs in h264.c in the ff_h264_check_intra4x4_pred_mode function which the error: top block unavailable for requested intra4x4 mode.
Could you please craft a minimal testcase using libav only? and/or provide a full backtrace?
How can I tell ffmpeg that the resolution of the content has changed during playback? Is this even possible?
It seems working correctly with mpegts as container so I'm not sure yet where the problem is.
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