arecord is failing with -V stereo
sujith kumar reddy
sujithreddy6192 at gmail.com
Tue Aug 24 08:11:13 CEST 2021
Hi folkert,
Are you going to submit the fix .
Thanks
Sujith
On Tue, Aug 24, 2021 at 6:45 AM sujith kumar reddy <
sujithreddy6192 at gmail.com> wrote:
> Ok thank you folkert .
>
>
>
> On Tue, 24 Aug, 2021, 1:46 AM folkert, <folkert at vanheusden.com> wrote:
>
>> p=0 is more correct I think
>>
>> this is application only
>>
>> On Tue, Aug 24, 2021 at 01:03:27AM +0530, sujith kumar reddy wrote:
>> > Hi folkert,
>> >
>> > The above you suggested p=0 is working .
>> > i tried like
>> > if (p > bar_length || p < 0)
>> > p = bar_length;
>> > This is also working.
>> >
>> > Which is the perfect one we can use?
>> > Is there any impact of p with driver data or this is just a
>> > application calculated value.
>> >
>> > Thanks
>> > Sujith
>> >
>> >
>> > On Tue, Aug 24, 2021 at 12:39 AM folkert <folkert at vanheusden.com>
>> wrote:
>> >
>> > > :-)
>> > >
>> > > If this also doesn't work, then I give up.
>> > >
>> > > diff --git a/aplay/aplay.c b/aplay/aplay.c
>> > > index cc51dcb..03a4f73 100644
>> > > --- a/aplay/aplay.c
>> > > +++ b/aplay/aplay.c
>> > > @@ -1753,8 +1753,10 @@ static void print_vu_meter_stereo(int *perc,
>> int
>> > > *maxperc)
>> > > for (c = 0; c < 2; c++) {
>> > > int p = perc[c] * bar_length / 100;
>> > > char tmp[4];
>> > > - if (p > bar_length)
>> > > - p = bar_length;
>> > > + if (p >= bar_length)
>> > > + p = bar_length - 1;
>> > > + if (p < 0)
>> > > + p = 0;
>> > > if (c)
>> > > memset(line + bar_length + 6 + 1, '#', p);
>> > > else
>> > >
>> > > On Tue, Aug 24, 2021 at 12:36:05AM +0530, sujith kumar reddy wrote:
>> > > > Hi Folkert,
>> > > >
>> > > > Tried with the above code.This is also getting p value negative.
>> > > >
>> > > > My point is p is negative it doesn't go to
>> > > >
>> > > > if (p >= bar_length)
>> > > > p = bar_length - 1;
>> > > > it is going to memset second argument p,that is negative so
>> crashing.
>> > > >
>> > > >
>> > > > logs:
>> > > > localhost ~ # ./sujith/arecord -D hw:1,2 -f S32_LE -r 48000 -c 2
>> 1.wav
>> > > -V s
>> > > > Sujith entry: main
>> > > > Recording WAVE '1.wav' : Signed 32 bit Little Endian, Rate 48000 Hz,
>> > > Stereo
>> > > >
>> > > > print_vu_meter_stereo sujith 35 ////////////////////////// c=0
>> case
>> > > > print_vu_meter_stereo sujith* -9227433* /////////////////////c=1
>> case p
>> > > > value negative which is going to memset second argument.
>> > > >
>> > > > Thanks
>> > > > Sujith
>> > > >
>> > > >
>> > > >
>> > > > On Tue, Aug 24, 2021 at 12:17 AM folkert <folkert at vanheusden.com>
>> wrote:
>> > > >
>> > > > > Ah same bug.
>> > > > > Please try this.
>> > > > > The idea is that in both cases the extra '-1' breaks it.
>> > > > >
>> > > > > diff --git a/aplay/aplay.c b/aplay/aplay.c
>> > > > > index cc51dcb..47db7e7 100644
>> > > > > --- a/aplay/aplay.c
>> > > > > +++ b/aplay/aplay.c
>> > > > > @@ -1753,8 +1753,8 @@ static void print_vu_meter_stereo(int
>> *perc, int
>> > > > > *maxperc)
>> > > > > for (c = 0; c < 2; c++) {
>> > > > > int p = perc[c] * bar_length / 100;
>> > > > > char tmp[4];
>> > > > > - if (p > bar_length)
>> > > > > - p = bar_length;
>> > > > > + if (p >= bar_length)
>> > > > > + p = bar_length - 1;
>> > > > > if (c)
>> > > > > memset(line + bar_length + 6 + 1, '#', p);
>> > > > > else
>> > > > >
>> > > > >
>> > > > > On Tue, Aug 24, 2021 at 12:14:00AM +0530, sujith kumar reddy
>> wrote:
>> > > > > > Tried with the above code.This is also getting p value negative.
>> > > > > >
>> > > > > > snippet code:
>> > > > > >
>> > > > > > fprintf(stderr, _(" %s sujith %d \n"), __func__,p);
>> > > > > > if (p > bar_length)
>> > > > > > p = bar_length;
>> > > > > > if (c)
>> > > > > > memset(line + bar_length + 6 + 1, '#',
>> p);
>> > > > > > else
>> > > > > > memset(line + bar_length - p - 1, '#',
>> p);
>> > > > > >
>> > > > > >
>> > > > > > logs....
>> > > > > > // c=0 case
>> > > > > >
>> > > > > > print_vu_meter_stereo sujith 35 ///value of p is 35
>> > > > > > c =1 case
>> > > > > >
>> > > > > > print_vu_meter_stereo sujith -9227433 ///value is negative//
>> > > > > >
>> > > > > > On Mon, Aug 23, 2021 at 10:33 PM folkert <
>> folkert at vanheusden.com>
>> > > wrote:
>> > > > > >
>> > > > > > > > const int bar_length = 35;
>> > > > > > > > char line[80];
>> > > > > > > ...
>> > > > > > > > if (p > bar_length)
>> > > > > > > > p = bar_length;
>> > > > > > > > if (c)
>> > > > > > > > memset(line + bar_length + 6 + 1,
>> '#',
>> > > p);
>> > > > > > > > ----------------//this is the line where it is
>> crashing.here p
>> > > value
>> > > > > is
>> > > > > > > > becoming negative at c=1.As we see if we change the p value
>> to
>> > > > > bar_length
>> > > > > > > > it works fine ..As it is a player issue not a driver issue.
>> > > > > > >
>> > > > > > > This is puzzling.
>> > > > > > > bar_length + 6 + 1 + p and thus 35 + 6 + 1 + 35 is max 77,
>> that
>> > > fits
>> > > > > > > easlity in 80.
>> > > > > > >
>> > > > > > > But wait:
>> > > > > > >
>> > > > > > > line[bar_length - p - 1] = '+';
>> > > > > > >
>> > > > > > > p is max bar_length, so we would end up putting '+' in
>> line[-1]
>> > > > > > >
>> > > > > > > Can you try this?
>> > > > > > >
>> > > > > > >
>> > > > > > > diff --git a/aplay/aplay.c b/aplay/aplay.c
>> > > > > > > index cc51dcb..9cfd52c 100644
>> > > > > > > --- a/aplay/aplay.c
>> > > > > > > +++ b/aplay/aplay.c
>> > > > > > > @@ -1764,7 +1764,7 @@ static void print_vu_meter_stereo(int
>> *perc,
>> > > int
>> > > > > > > *maxperc)
>> > > > > > > p = bar_length;
>> > > > > > > if (c)
>> > > > > > > line[bar_length + 6 + 1 + p] = '+';
>> > > > > > > - else
>> > > > > > > + else if (p < bar_length)
>> > > > > > > line[bar_length - p - 1] = '+';
>> > > > > > > if (ABS(maxperc[c]) > 99)
>> > > > > > > sprintf(tmp, "MAX");
>> > > > > > >
>> > > > >
>> > >
>> > >
>> > > Folkert van Heusden
>> > >
>> > > --
>> > > Multitail es una herramienta flexible que permite visualizar los "log
>> > > file" y seguir la ejecución de comandos. Permite filtrar, añadir
>> > > colores, combinar archivos, la visualización de diferencias (diff-
>> > > view), etc. http://www.vanheusden.com/multitail/
>> > > ----------------------------------------------------------------------
>> > > Phone: +31-6-41278122, PGP-key: 1F28D8AE, www.vanheusden.com
>> > >
>>
>>
>> Folkert van Heusden
>>
>> --
>> Multitail es una herramienta flexible que permite visualizar los "log
>> file" y seguir la ejecución de comandos. Permite filtrar, añadir
>> colores, combinar archivos, la visualización de diferencias (diff-
>> view), etc. http://www.vanheusden.com/multitail/
>> ----------------------------------------------------------------------
>> Phone: +31-6-41278122, PGP-key: 1F28D8AE, www.vanheusden.com
>>
>
More information about the Alsa-devel
mailing list