[FFmpeg-devel] [PATCH] Replace hardcoded LP filter order with parameter in lsp.c

Vladimir Voroshilov voroshil
Sun May 11 05:19:28 CEST 2008


2008/5/11 Michael Niedermayer <michaelni at gmx.at>:
> On Sun, May 11, 2008 at 09:28:25AM +0700, Vladimir Voroshilov wrote:
>> 2008/5/11 Michael Niedermayer <michaelni at gmx.at>:
>> > Hi
>> >
>> > On Sat, May 10, 2008 at 11:55:16PM +0700, Vladimir Voroshilov wrote:
>> >> 2008/5/10 Michael Niedermayer <michaelni at gmx.at>:
>> >> > On Sat, May 10, 2008 at 01:41:39PM +0700, Vladimir Voroshilov wrote:
>> >> >> Hi, All
>> >> >>
>> >> >> Comparing SIPR decoder with current lsp.c code i've found that
>> >> >> most of LSP routines are mostly the same.
>> >> >>
>> >> >> The only difference are order of used filter.
>> >> >> G.729 and AMR uses 10th order LP filter, while
>> >> >> SIPR's 16k mode used 16th order filter.
>> >> >>
>> >> >> Attached patch removes hardcoded filter order from loops and
>> >> >> replaces it with parameter.
>> >> >>
>> >> >> P.S. cosmetics long-line-break (declarations only) patch will be applied
>> >> >> separately (should i post that trivial patch here ?)
>> >> > [...]
>> >> >> diff --git a/libavcodec/lsp.c b/libavcodec/lsp.c
>> >> >> index 9a09f8d..abe6380 100644
>> >> >> --- a/libavcodec/lsp.c
>> >> >> +++ b/libavcodec/lsp.c
>> >> >> @@ -28,30 +28,30 @@
>> >> >>  #include "lsp.h"
>> >> >>  #include "acelp_math.h"
>> >> >>
>> >> >> -void ff_acelp_reorder_lsf(int16_t* lsfq, int lsfq_min_distance, int lsfq_min, int lsfq_max)
>> >> >> +void ff_acelp_reorder_lsf(int16_t* lsfq, int16_t lsfq_min_distance, int16_t lsfq_min, int16_t lsfq_max, int lp_order)
>> >> >
>> >> > unrelated changes
>> >>
>> >> Removed
>> > [...]
>> >> -void ff_acelp_reorder_lsf(int16_t* lsfq, int lsfq_min_distance, int lsqf_min, int lsfq_max);
>> >> +void ff_acelp_reorder_lsf(int16_t* lsfq, int16_t lsfq_min_distance, int16_t lsqf_min, int16_t lsfq_max, int lp_order);
>> >
>> > hmm
>>
>> This should be better.
>
> looks ok
>

Applied.



-- 
Regards,
Vladimir Voroshilov     mailto:voroshil at gmail.com
JID: voroshil at gmail.com, voroshil at jabber.ru
ICQ: 95587719




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