[FFmpeg-devel] [PATCH] fate: add fate-sub-dvb test

[Andreas Rheinhardt]

Clément Bœsch:
> On Mon, Aug 10, 2020 at 08:36:13PM +0200, Andreas Rheinhardt wrote:
>> Clément Bœsch:
>>> Source: Videolan sample database (samples/sub/dvbsub)
>>> ---
>>> Can someone upload https://streams.videolan.org/samples/sub/dvbsub/dvbsubtest.ts to fate-samples/sub?
>>
>> A 20MB sample? Can't one use a smaller sample or filter out the
>> interesting PIDs from this sample? (If I remux only the subtitle stream
>> to Matroska with mkvmerge, the sample is 33 kB.)
> 
> Yup, you're correct. New patch attached.
> 
> For the sample:
>   curl 'https://0x0.st/i35H.mks' -o fate-samples/sub/dvbsubtest.mks
> 
> sha256sum:
>   3fccc784eb61e701f1d6789253f637a32374ce6c81539d44a4e74075246ff02b  fate-samples/sub/dvbsubtest.mks
> 
If one strips the video and the audio PID away, one gets a 77KB
transport stream. And as it turns out, this file is unusable since
commit a1b4f120c031e6697bac9fd8c725d9c37ee36d13; see ticket #8844 for
details. Maybe it would be better to go with the stripped down transport
stream (the file I attached to #8844) in order to make sure that we
don't regress again (after the regression has been fixed, of course)?

But anyway, the Matroska file uses zlib compression (that's why it's so
small -- the actual data size is 51KB) and therefore your test needs to
check for zlib.

- Andreas