* [FFmpeg-devel] [PATCH] avcodec/iirfilter: Move ff_iir_filter() to lavc/tests/iirfilter.c
@ 2024-06-16 12:07 Andreas Rheinhardt
2024-06-16 12:54 ` Paul B Mahol
2024-06-21 12:21 ` Andreas Rheinhardt
0 siblings, 2 replies; 3+ messages in thread
From: Andreas Rheinhardt @ 2024-06-16 12:07 UTC (permalink / raw)
To: ffmpeg-devel; +Cc: Andreas Rheinhardt
It is only used by the test.
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
---
libavcodec/iirfilter.c | 14 --------------
libavcodec/iirfilter.h | 15 ---------------
libavcodec/tests/iirfilter.c | 17 ++++++++++++++++-
3 files changed, 16 insertions(+), 30 deletions(-)
diff --git a/libavcodec/iirfilter.c b/libavcodec/iirfilter.c
index 727a370444..cefe35ab6e 100644
--- a/libavcodec/iirfilter.c
+++ b/libavcodec/iirfilter.c
@@ -277,20 +277,6 @@ av_cold struct FFIIRFilterState *ff_iir_filter_init_state(int order)
} \
}
-void ff_iir_filter(const struct FFIIRFilterCoeffs *c,
- struct FFIIRFilterState *s, int size,
- const int16_t *src, ptrdiff_t sstep,
- int16_t *dst, ptrdiff_t dstep)
-{
- if (c->order == 2) {
- FILTER_O2(int16_t, S16)
- } else if (c->order == 4) {
- FILTER_BW_O4(int16_t, S16)
- } else {
- FILTER_DIRECT_FORM_II(int16_t, S16)
- }
-}
-
/**
* Perform IIR filtering on floating-point input samples.
*
diff --git a/libavcodec/iirfilter.h b/libavcodec/iirfilter.h
index d6b8fe2782..8ab8ae68c6 100644
--- a/libavcodec/iirfilter.h
+++ b/libavcodec/iirfilter.h
@@ -28,7 +28,6 @@
#define AVCODEC_IIRFILTER_H
#include <stddef.h>
-#include <stdint.h>
struct FFIIRFilterCoeffs;
struct FFIIRFilterState;
@@ -114,18 +113,4 @@ void ff_iir_filter_free_coeffsp(struct FFIIRFilterCoeffs **coeffs);
*/
void ff_iir_filter_free_statep(struct FFIIRFilterState **state);
-/**
- * Perform IIR filtering on signed 16-bit input samples.
- *
- * @param coeffs pointer to filter coefficients
- * @param state pointer to filter state
- * @param size input length
- * @param src source samples
- * @param sstep source stride
- * @param dst filtered samples (destination may be the same as input)
- * @param dstep destination stride
- */
-void ff_iir_filter(const struct FFIIRFilterCoeffs *coeffs, struct FFIIRFilterState *state,
- int size, const int16_t *src, ptrdiff_t sstep, int16_t *dst, ptrdiff_t dstep);
-
#endif /* AVCODEC_IIRFILTER_H */
diff --git a/libavcodec/tests/iirfilter.c b/libavcodec/tests/iirfilter.c
index 60cc6fc43d..e03e842b85 100644
--- a/libavcodec/tests/iirfilter.c
+++ b/libavcodec/tests/iirfilter.c
@@ -23,10 +23,25 @@
#include "libavutil/libm.h"
#include "libavcodec/iirfilter.h"
+#include "libavcodec/iirfilter.c"
#define FILT_ORDER 4
#define SIZE 1024
+static void iir_filter_int16(const struct FFIIRFilterCoeffs *c,
+ struct FFIIRFilterState *s, int size,
+ const int16_t *src, ptrdiff_t sstep,
+ int16_t *dst, ptrdiff_t dstep)
+{
+ if (c->order == 2) {
+ FILTER_O2(int16_t, S16)
+ } else if (c->order == 4) {
+ FILTER_BW_O4(int16_t, S16)
+ } else {
+ FILTER_DIRECT_FORM_II(int16_t, S16)
+ }
+}
+
int main(void)
{
struct FFIIRFilterCoeffs *fcoeffs = NULL;
@@ -43,7 +58,7 @@ int main(void)
for (i = 0; i < SIZE; i++)
x[i] = lrint(0.75 * INT16_MAX * sin(0.5 * M_PI * i * i / SIZE));
- ff_iir_filter(fcoeffs, fstate, SIZE, x, 1, y, 1);
+ iir_filter_int16(fcoeffs, fstate, SIZE, x, 1, y, 1);
for (i = 0; i < SIZE; i++)
printf("%6d %6d\n", x[i], y[i]);
--
2.40.1
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^ permalink raw reply [flat|nested] 3+ messages in thread* Re: [FFmpeg-devel] [PATCH] avcodec/iirfilter: Move ff_iir_filter() to lavc/tests/iirfilter.c
2024-06-16 12:07 [FFmpeg-devel] [PATCH] avcodec/iirfilter: Move ff_iir_filter() to lavc/tests/iirfilter.c Andreas Rheinhardt
@ 2024-06-16 12:54 ` Paul B Mahol
2024-06-21 12:21 ` Andreas Rheinhardt
1 sibling, 0 replies; 3+ messages in thread
From: Paul B Mahol @ 2024-06-16 12:54 UTC (permalink / raw)
To: FFmpeg development discussions and patches; +Cc: Andreas Rheinhardt
On Sun, Jun 16, 2024 at 2:07 PM Andreas Rheinhardt <
andreas.rheinhardt@outlook.com> wrote:
> It is only used by the test.
>
> Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
> ---
> libavcodec/iirfilter.c | 14 --------------
> libavcodec/iirfilter.h | 15 ---------------
> libavcodec/tests/iirfilter.c | 17 ++++++++++++++++-
> 3 files changed, 16 insertions(+), 30 deletions(-)
>
> diff --git a/libavcodec/iirfilter.c b/libavcodec/iirfilter.c
> index 727a370444..cefe35ab6e 100644
> --- a/libavcodec/iirfilter.c
> +++ b/libavcodec/iirfilter.c
> @@ -277,20 +277,6 @@ av_cold struct FFIIRFilterState
> *ff_iir_filter_init_state(int order)
> }
> \
> }
>
> -void ff_iir_filter(const struct FFIIRFilterCoeffs *c,
> - struct FFIIRFilterState *s, int size,
> - const int16_t *src, ptrdiff_t sstep,
> - int16_t *dst, ptrdiff_t dstep)
> -{
> - if (c->order == 2) {
> - FILTER_O2(int16_t, S16)
> - } else if (c->order == 4) {
> - FILTER_BW_O4(int16_t, S16)
> - } else {
> - FILTER_DIRECT_FORM_II(int16_t, S16)
> - }
> -}
> -
> /**
> * Perform IIR filtering on floating-point input samples.
> *
> diff --git a/libavcodec/iirfilter.h b/libavcodec/iirfilter.h
> index d6b8fe2782..8ab8ae68c6 100644
> --- a/libavcodec/iirfilter.h
> +++ b/libavcodec/iirfilter.h
> @@ -28,7 +28,6 @@
> #define AVCODEC_IIRFILTER_H
>
> #include <stddef.h>
> -#include <stdint.h>
>
> struct FFIIRFilterCoeffs;
> struct FFIIRFilterState;
> @@ -114,18 +113,4 @@ void ff_iir_filter_free_coeffsp(struct
> FFIIRFilterCoeffs **coeffs);
> */
> void ff_iir_filter_free_statep(struct FFIIRFilterState **state);
>
> -/**
> - * Perform IIR filtering on signed 16-bit input samples.
> - *
> - * @param coeffs pointer to filter coefficients
> - * @param state pointer to filter state
> - * @param size input length
> - * @param src source samples
> - * @param sstep source stride
> - * @param dst filtered samples (destination may be the same as input)
> - * @param dstep destination stride
> - */
> -void ff_iir_filter(const struct FFIIRFilterCoeffs *coeffs, struct
> FFIIRFilterState *state,
> - int size, const int16_t *src, ptrdiff_t sstep, int16_t
> *dst, ptrdiff_t dstep);
> -
> #endif /* AVCODEC_IIRFILTER_H */
> diff --git a/libavcodec/tests/iirfilter.c b/libavcodec/tests/iirfilter.c
> index 60cc6fc43d..e03e842b85 100644
> --- a/libavcodec/tests/iirfilter.c
> +++ b/libavcodec/tests/iirfilter.c
> @@ -23,10 +23,25 @@
> #include "libavutil/libm.h"
>
> #include "libavcodec/iirfilter.h"
> +#include "libavcodec/iirfilter.c"
>
> #define FILT_ORDER 4
> #define SIZE 1024
>
> +static void iir_filter_int16(const struct FFIIRFilterCoeffs *c,
> + struct FFIIRFilterState *s, int size,
> + const int16_t *src, ptrdiff_t sstep,
> + int16_t *dst, ptrdiff_t dstep)
> +{
> + if (c->order == 2) {
> + FILTER_O2(int16_t, S16)
> + } else if (c->order == 4) {
> + FILTER_BW_O4(int16_t, S16)
> + } else {
> + FILTER_DIRECT_FORM_II(int16_t, S16)
> + }
> +}
> +
> int main(void)
> {
> struct FFIIRFilterCoeffs *fcoeffs = NULL;
> @@ -43,7 +58,7 @@ int main(void)
> for (i = 0; i < SIZE; i++)
> x[i] = lrint(0.75 * INT16_MAX * sin(0.5 * M_PI * i * i / SIZE));
>
> - ff_iir_filter(fcoeffs, fstate, SIZE, x, 1, y, 1);
> + iir_filter_int16(fcoeffs, fstate, SIZE, x, 1, y, 1);
>
> for (i = 0; i < SIZE; i++)
> printf("%6d %6d\n", x[i], y[i]);
> --
> 2.40.1
>
>
Unrelated to this patch, the iir >=2 order done by Direct II form for fixed
point integers is very bad idea.
> _______________________________________________
> ffmpeg-devel mailing list
> ffmpeg-devel@ffmpeg.org
> https://ffmpeg.org/mailman/listinfo/ffmpeg-devel
>
> To unsubscribe, visit link above, or email
> ffmpeg-devel-request@ffmpeg.org with subject "unsubscribe".
>
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^ permalink raw reply [flat|nested] 3+ messages in thread* Re: [FFmpeg-devel] [PATCH] avcodec/iirfilter: Move ff_iir_filter() to lavc/tests/iirfilter.c
2024-06-16 12:07 [FFmpeg-devel] [PATCH] avcodec/iirfilter: Move ff_iir_filter() to lavc/tests/iirfilter.c Andreas Rheinhardt
2024-06-16 12:54 ` Paul B Mahol
@ 2024-06-21 12:21 ` Andreas Rheinhardt
1 sibling, 0 replies; 3+ messages in thread
From: Andreas Rheinhardt @ 2024-06-21 12:21 UTC (permalink / raw)
To: ffmpeg-devel
Andreas Rheinhardt:
> It is only used by the test.
>
> Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
> ---
> libavcodec/iirfilter.c | 14 --------------
> libavcodec/iirfilter.h | 15 ---------------
> libavcodec/tests/iirfilter.c | 17 ++++++++++++++++-
> 3 files changed, 16 insertions(+), 30 deletions(-)
>
> diff --git a/libavcodec/iirfilter.c b/libavcodec/iirfilter.c
> index 727a370444..cefe35ab6e 100644
> --- a/libavcodec/iirfilter.c
> +++ b/libavcodec/iirfilter.c
> @@ -277,20 +277,6 @@ av_cold struct FFIIRFilterState *ff_iir_filter_init_state(int order)
> } \
> }
>
> -void ff_iir_filter(const struct FFIIRFilterCoeffs *c,
> - struct FFIIRFilterState *s, int size,
> - const int16_t *src, ptrdiff_t sstep,
> - int16_t *dst, ptrdiff_t dstep)
> -{
> - if (c->order == 2) {
> - FILTER_O2(int16_t, S16)
> - } else if (c->order == 4) {
> - FILTER_BW_O4(int16_t, S16)
> - } else {
> - FILTER_DIRECT_FORM_II(int16_t, S16)
> - }
> -}
> -
> /**
> * Perform IIR filtering on floating-point input samples.
> *
> diff --git a/libavcodec/iirfilter.h b/libavcodec/iirfilter.h
> index d6b8fe2782..8ab8ae68c6 100644
> --- a/libavcodec/iirfilter.h
> +++ b/libavcodec/iirfilter.h
> @@ -28,7 +28,6 @@
> #define AVCODEC_IIRFILTER_H
>
> #include <stddef.h>
> -#include <stdint.h>
>
> struct FFIIRFilterCoeffs;
> struct FFIIRFilterState;
> @@ -114,18 +113,4 @@ void ff_iir_filter_free_coeffsp(struct FFIIRFilterCoeffs **coeffs);
> */
> void ff_iir_filter_free_statep(struct FFIIRFilterState **state);
>
> -/**
> - * Perform IIR filtering on signed 16-bit input samples.
> - *
> - * @param coeffs pointer to filter coefficients
> - * @param state pointer to filter state
> - * @param size input length
> - * @param src source samples
> - * @param sstep source stride
> - * @param dst filtered samples (destination may be the same as input)
> - * @param dstep destination stride
> - */
> -void ff_iir_filter(const struct FFIIRFilterCoeffs *coeffs, struct FFIIRFilterState *state,
> - int size, const int16_t *src, ptrdiff_t sstep, int16_t *dst, ptrdiff_t dstep);
> -
> #endif /* AVCODEC_IIRFILTER_H */
> diff --git a/libavcodec/tests/iirfilter.c b/libavcodec/tests/iirfilter.c
> index 60cc6fc43d..e03e842b85 100644
> --- a/libavcodec/tests/iirfilter.c
> +++ b/libavcodec/tests/iirfilter.c
> @@ -23,10 +23,25 @@
> #include "libavutil/libm.h"
>
> #include "libavcodec/iirfilter.h"
> +#include "libavcodec/iirfilter.c"
>
> #define FILT_ORDER 4
> #define SIZE 1024
>
> +static void iir_filter_int16(const struct FFIIRFilterCoeffs *c,
> + struct FFIIRFilterState *s, int size,
> + const int16_t *src, ptrdiff_t sstep,
> + int16_t *dst, ptrdiff_t dstep)
> +{
> + if (c->order == 2) {
> + FILTER_O2(int16_t, S16)
> + } else if (c->order == 4) {
> + FILTER_BW_O4(int16_t, S16)
> + } else {
> + FILTER_DIRECT_FORM_II(int16_t, S16)
> + }
> +}
> +
> int main(void)
> {
> struct FFIIRFilterCoeffs *fcoeffs = NULL;
> @@ -43,7 +58,7 @@ int main(void)
> for (i = 0; i < SIZE; i++)
> x[i] = lrint(0.75 * INT16_MAX * sin(0.5 * M_PI * i * i / SIZE));
>
> - ff_iir_filter(fcoeffs, fstate, SIZE, x, 1, y, 1);
> + iir_filter_int16(fcoeffs, fstate, SIZE, x, 1, y, 1);
>
> for (i = 0; i < SIZE; i++)
> printf("%6d %6d\n", x[i], y[i]);
Will apply tonight unless there are objections.
- Andreas
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^ permalink raw reply [flat|nested] 3+ messages in thread
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2024-06-16 12:07 [FFmpeg-devel] [PATCH] avcodec/iirfilter: Move ff_iir_filter() to lavc/tests/iirfilter.c Andreas Rheinhardt
2024-06-16 12:54 ` Paul B Mahol
2024-06-21 12:21 ` Andreas Rheinhardt
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