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<div class="moz-cite-prefix">Okay, I tried using swr_convert, but it
always crashes when trying to divide by 0.<br>
Basically, I have the same problem as those two guys:<br>
<br>
<a class="moz-txt-link-freetext" href="http://stackoverflow.com/questions/14448413/why-am-i-getting-fpe-when-using-swresample-1-1">http://stackoverflow.com/questions/14448413/why-am-i-getting-fpe-when-using-swresample-1-1</a><br>
and<br>
<a class="moz-txt-link-freetext" href="https://ffmpeg.org/trac/ffmpeg/ticket/1834">https://ffmpeg.org/trac/ffmpeg/ticket/1834</a><br>
<br>
However, I DO call swr_init() and there is no error whatsoever.<br>
And it never reaches the point in swr_init() where
context->postin would be set so it HAS to crash there.<br>
<br>
Here is the code I use to init and to the swr_convert:<br>
<br>
// Init context<br>
SwrContext* swrContext = swr_alloc_set_opts(NULL, <br>
audioCodecContext->channel_layout,
AV_SAMPLE_FMT_S16P, audioCodecContext->sample_rate,<br>
audioCodecContext->channel_layout,
audioCodecContext->sample_fmt,
audioCodecContext->sample_rate, <br>
0, NULL);<br>
int result = swr_init(swrContext);<br>
<br>
// Conversion<br>
int outputSamples = swr_convert(swrContext, <br>
&p_destBuffer, 2048,
<br>
(const
uint8_t**)p_frame->extended_data, p_frame->nb_samples);<br>
<br>
As I said, I receive no errors, but the crash when FFmpeg tries to
divide by 0 inside <code><span class="pln">swri_realloc_audio</span></code>.<br>
What am I doing wrong?<br>
<br>
Am 27.01.2014 20:46, schrieb Jan Drabner:<br>
</div>
<blockquote cite="mid:52E6B78C.5050507@jdrabner.eu" type="cite">Well.
I don't.
<br>
<br>
I was assuming that decode_audio4(...) was already giving output
in that format. I mean, after decoding, the data has to be in SOME
format, so I assumed it was a standard format. Possibly a bit
naive on my part.
<br>
But then again, not a single sample with FFmpeg & OpenAL I
found was using aresample, so this is the first time I actually
hear of it.
<br>
<br>
I will try using it now and see how well that goes.
<br>
<br>
Am 27.01.2014 20:36, schrieb Carl Eugen Hoyos:
<br>
<blockquote type="cite">Jan Drabner <a class="moz-txt-link-rfc2396E" href="mailto:jan@..."><jan@...></a> writes:
<br>
<br>
<blockquote type="cite">However, I cannot get the sound to play
at all with OpenAL.
<br>
</blockquote>
Where do you call libswresample or aresample to convert
<br>
from AV_SAMPLE_FMT_FLTP to AV_SAMPLE_FMT_S16 ?
<br>
<br>
Carl Eugen
<br>
<br>
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</blockquote>
<br>
</blockquote>
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