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video-scaler: rename resampler to video-resampler

Browse source 
Prefix the resampler with video-. It we would like to reuse the
resampler for audio later, we can copy/move it and deprecate this
one.
This commit is contained in:
Wim Taymans 2014-10-30 11:43:52 +01:00
parent daf20d5e09
commit ca2bd1cc6b
6 changed files with 97 additions and 98 deletions
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6
gst-libs/gst/video/Makefile.am
View file

@ -4,7 +4,7 @@ include $(top_srcdir)/common/orc.mak
glib_enum_headers = video.h video-format.h video-color.h video-info.h \
colorbalance.h navigation.h video-chroma.h video-tile.h video-converter.h \
resampler.h
video-resampler.h
glib_enum_define = GST_VIDEO
glib_gen_prefix = gst_video
glib_gen_basename = video
@ -41,7 +41,7 @@ libgstvideo_@GST_API_VERSION@_la_SOURCES = \
gstvideodecoder.c \
gstvideoencoder.c \
gstvideoutils.c \
resampler.c \
video-resampler.c \
video-blend.c \
video-overlay-composition.c
@ -71,7 +71,7 @@ libgstvideo_@GST_API_VERSION@include_HEADERS = \
gstvideodecoder.h \
gstvideoencoder.h \
gstvideoutils.h \
resampler.h \
video-resampler.h \
video-blend.h \
video-overlay-composition.h

14
gst-libs/gst/video/video-converter.c
View file

@ -310,9 +310,9 @@ chain_hscale (GstVideoConverter * convert, GstLineCacheNeedLineFunc need_line)
need_line, convert, NULL);
if (!gst_structure_get_enum (convert->config,
GST_VIDEO_CONVERTER_OPT_RESAMPLER_METHOD, GST_TYPE_RESAMPLER_METHOD,
&method))
method = GST_RESAMPLER_METHOD_CUBIC;
GST_VIDEO_CONVERTER_OPT_RESAMPLER_METHOD,
GST_TYPE_VIDEO_RESAMPLER_METHOD, &method))
method = GST_VIDEO_RESAMPLER_METHOD_CUBIC;
if (!gst_structure_get_uint (convert->config,
GST_VIDEO_CONVERTER_OPT_RESAMPLER_TAPS, &taps))
taps = 0;
@ -339,9 +339,9 @@ chain_vscale (GstVideoConverter * convert, GstLineCacheNeedLineFunc need_line)
need_line, convert, NULL);
if (!gst_structure_get_enum (convert->config,
GST_VIDEO_CONVERTER_OPT_RESAMPLER_METHOD, GST_TYPE_RESAMPLER_METHOD,
&method))
method = GST_RESAMPLER_METHOD_CUBIC;
GST_VIDEO_CONVERTER_OPT_RESAMPLER_METHOD,
GST_TYPE_VIDEO_RESAMPLER_METHOD, &method))
method = GST_VIDEO_RESAMPLER_METHOD_CUBIC;
if (!gst_structure_get_uint (convert->config,
GST_VIDEO_CONVERTER_OPT_RESAMPLER_TAPS, &taps))
taps = 0;
@ -1108,10 +1108,10 @@ do_unpack_lines (GstLineCache * cache, gint line, GstVideoConverter * convert)
gpointer tmpline;
guint cline;;
tmpline = get_temp_line (convert);
cline = CLAMP (line, 0, convert->in_height - 1);
GST_DEBUG ("unpack line %d (%u)", line, cline);
tmpline = get_temp_line (convert);
UNPACK_FRAME (convert->src, tmpline, cline, convert->in_width);
gst_line_cache_add_line (cache, line, tmpline);

60
gst-libs/gst/video/resampler.c → gst-libs/gst/video/video-resampler.c
View file

@ -25,14 +25,14 @@
#include <stdio.h>
#include <math.h>
#include "resampler.h"
#include "video-resampler.h"
typedef struct _ResamplerParams ResamplerParams;
struct _ResamplerParams
{
GstResamplerMethod method;
GstResamplerFlags flags;
GstVideoResamplerMethod method;
GstVideoResamplerFlags flags;
gdouble shift;
@ -47,7 +47,7 @@ struct _ResamplerParams
gdouble sharpness;
gdouble sharpen;
GstResampler *resampler;
GstVideoResampler *resampler;
};
static double
@ -152,7 +152,7 @@ get_lanczos_tap (ResamplerParams * params, gint l, gint xi, gdouble x)
static void
resampler_calculate_taps (ResamplerParams * params)
{
GstResampler *resampler = params->resampler;
GstVideoResampler *resampler = params->resampler;
gint j;
guint32 *offset, *n_taps, *phase;
gint tap_offs;
@ -236,10 +236,10 @@ resampler_calculate_taps (ResamplerParams * params)
}
/**
* gst_resampler_new:
* @resampler: a #GstResampler
* @method: a #GstResamplerMethod
* @flags: #GstResamplerFlags
* gst_video_resampler_new:
* @resampler: a #GstVideoResampler
* @method: a #GstVideoResamplerMethod
* @flags: #GstVideoResamplerFlags
* @n_phases: number of phases to use
* @n_taps: number of taps to use
* @in_size: number of source elements
@ -258,8 +258,8 @@ resampler_calculate_taps (ResamplerParams * params)
* Since: 1.6
*/
gboolean
gst_resampler_init (GstResampler * resampler,
GstResamplerMethod method, GstResamplerFlags flags,
gst_video_resampler_init (GstVideoResampler * resampler,
GstVideoResamplerMethod method, GstVideoResamplerFlags flags,
guint n_phases, guint n_taps, gdouble shift, guint in_size, guint out_size,
GstStructure * options)
{
@ -281,48 +281,48 @@ gst_resampler_init (GstResampler * resampler,
GST_DEBUG ("%d %u %u->%u", method, n_taps, in_size, out_size);
switch (method) {
case GST_RESAMPLER_METHOD_NEAREST:
case GST_VIDEO_RESAMPLER_METHOD_NEAREST:
params.get_tap = get_nearest_tap;
if (n_taps == 0)
n_taps = 1;
break;
case GST_RESAMPLER_METHOD_LINEAR:
case GST_VIDEO_RESAMPLER_METHOD_LINEAR:
params.get_tap = get_linear_tap;
if (n_taps == 0)
n_taps = 2;
break;
case GST_RESAMPLER_METHOD_CUBIC:
case GST_VIDEO_RESAMPLER_METHOD_CUBIC:
if (!options
|| !gst_structure_get_double (options, GST_RESAMPLER_OPT_CUBIC_B,
&params.b))
|| !gst_structure_get_double (options,
GST_VIDEO_RESAMPLER_OPT_CUBIC_B, &params.b))
params.b = 1.0 / 3.0;
if (!options
|| !gst_structure_get_double (options, GST_RESAMPLER_OPT_CUBIC_C,
&params.c))
|| !gst_structure_get_double (options,
GST_VIDEO_RESAMPLER_OPT_CUBIC_C, &params.c))
params.c = 1.0 / 3.0;
n_taps = 4;
params.get_tap = get_cubic_tap;
break;
case GST_RESAMPLER_METHOD_SINC:
case GST_VIDEO_RESAMPLER_METHOD_SINC:
params.get_tap = get_sinc_tap;
if (n_taps == 0)
n_taps = 4;
break;
case GST_RESAMPLER_METHOD_LANCZOS:
case GST_VIDEO_RESAMPLER_METHOD_LANCZOS:
{
gdouble resample_inc = in_size / (gdouble) out_size;
if (!options
|| !gst_structure_get_double (options, GST_RESAMPLER_OPT_ENVELOPE,
&params.envelope))
|| !gst_structure_get_double (options,
GST_VIDEO_RESAMPLER_OPT_ENVELOPE, &params.envelope))
params.envelope = 2.0;
if (!options
|| !gst_structure_get_double (options, GST_RESAMPLER_OPT_SHARPNESS,
&params.sharpness))
|| !gst_structure_get_double (options,
GST_VIDEO_RESAMPLER_OPT_SHARPNESS, &params.sharpness))
params.sharpness = 1.0;
if (!options
|| !gst_structure_get_double (options, GST_RESAMPLER_OPT_SHARPEN,
&params.sharpen))
|| !gst_structure_get_double (options,
GST_VIDEO_RESAMPLER_OPT_SHARPEN, &params.sharpen))
params.sharpen = 0.0;
if (resample_inc > 1.0) {
@ -379,15 +379,15 @@ gst_resampler_init (GstResampler * resampler,
}
/**
* gst_resampler_clear:
* @resampler: a #GstResampler
* gst_video_resampler_clear:
* @resampler: a #GstVideoResampler
*
* Clear a previously initialized #GstResampler @resampler.
* Clear a previously initialized #GstVideoResampler @resampler.
*
* Since: 1.6
*/
void
gst_resampler_clear (GstResampler * resampler)
gst_video_resampler_clear (GstVideoResampler * resampler)
{
g_return_if_fail (resampler != NULL);

80
gst-libs/gst/video/resampler.h → gst-libs/gst/video/video-resampler.h
View file

@ -17,39 +17,39 @@
* Boston, MA 02110-1301, USA.
*/
#ifndef __GST_RESAMPLER_H__
#define __GST_RESAMPLER_H__
#ifndef __GST_VIDEO_RESAMPLER_H__
#define __GST_VIDEO_RESAMPLER_H__
#include <gst/gst.h>
G_BEGIN_DECLS
typedef struct _GstResampler GstResampler;
typedef struct _GstVideoResampler GstVideoResampler;
/**
* GstResamplerMethod:
* @GST_RESAMPLER_METHOD_NEAREST: Duplicates the samples when
* GstVideoResamplerMethod:
* @GST_VIDEO_RESAMPLER_METHOD_NEAREST: Duplicates the samples when
* upsampling and drops when downsampling
* @GST_RESAMPLER_METHOD_LINEAR: Uses linear interpolation to reconstruct
* @GST_VIDEO_RESAMPLER_METHOD_LINEAR: Uses linear interpolation to reconstruct
* missing samples and averaging to downsample
* @GST_RESAMPLER_METHOD_CUBIC: Uses cubic interpolation
* @GST_RESAMPLER_METHOD_SINC: Uses sinc interpolation
* @GST_RESAMPLER_METHOD_LANCZOS: Uses lanczos interpolation
* @GST_VIDEO_RESAMPLER_METHOD_CUBIC: Uses cubic interpolation
* @GST_VIDEO_RESAMPLER_METHOD_SINC: Uses sinc interpolation
* @GST_VIDEO_RESAMPLER_METHOD_LANCZOS: Uses lanczos interpolation
*
* Different subsampling and upsampling methods
*
* Since: 1.6
*/
typedef enum {
GST_RESAMPLER_METHOD_NEAREST,
GST_RESAMPLER_METHOD_LINEAR,
GST_RESAMPLER_METHOD_CUBIC,
GST_RESAMPLER_METHOD_SINC,
GST_RESAMPLER_METHOD_LANCZOS,
} GstResamplerMethod;
GST_VIDEO_RESAMPLER_METHOD_NEAREST,
GST_VIDEO_RESAMPLER_METHOD_LINEAR,
GST_VIDEO_RESAMPLER_METHOD_CUBIC,
GST_VIDEO_RESAMPLER_METHOD_SINC,
GST_VIDEO_RESAMPLER_METHOD_LANCZOS,
} GstVideoResamplerMethod;
/**
* GST_RESAMPLER_OPT_CUBIC_B:
* GST_VIDEO_RESAMPLER_OPT_CUBIC_B:
*
* G_TYPE_DOUBLE, B parameter of the cubic filter. The B
* parameter controls the bluriness. Values between 0.0 and
@ -67,59 +67,59 @@ typedef enum {
* Robidoux
* Soft 0.6796 0.1602
*/
#define GST_RESAMPLER_OPT_CUBIC_B "GstResampler.cubic-b"
#define GST_VIDEO_RESAMPLER_OPT_CUBIC_B "GstVideoResampler.cubic-b"
/**
* GST_RESAMPLER_OPT_CUBIC_C:
* GST_VIDEO_RESAMPLER_OPT_CUBIC_C:
*
* G_TYPE_DOUBLE, C parameter of the cubic filter. The C
* parameter controls the Keys alpha value. Values between 0.0 and
* 2.0 are accepted. 1/3 is the default.
*
* See #GST_RESAMPLER_OPT_CUBIC_B for some more common values
* See #GST_VIDEO_RESAMPLER_OPT_CUBIC_B for some more common values
*/
#define GST_RESAMPLER_OPT_CUBIC_C "GstResampler.cubic-c"
#define GST_VIDEO_RESAMPLER_OPT_CUBIC_C "GstVideoResampler.cubic-c"
/**
* GST_RESAMPLER_OPT_ENVELOPE:
* GST_VIDEO_RESAMPLER_OPT_ENVELOPE:
*
* G_TYPE_DOUBLE, specifies the size of filter envelope for
* @GST_RESAMPLER_METHOD_LANCZOS. values are clamped between
* @GST_VIDEO_RESAMPLER_METHOD_LANCZOS. values are clamped between
* 1.0 and 5.0. 2.0 is the default.
*/
#define GST_RESAMPLER_OPT_ENVELOPE "GstResampler.envelope"
#define GST_VIDEO_RESAMPLER_OPT_ENVELOPE "GstVideoResampler.envelope"
/**
* GST_RESAMPLER_OPT_SHARPNESS:
* GST_VIDEO_RESAMPLER_OPT_SHARPNESS:
*
* G_TYPE_DOUBLE, specifies sharpness of the filter for
* @GST_RESAMPLER_METHOD_LANCZOS. values are clamped between
* @GST_VIDEO_RESAMPLER_METHOD_LANCZOS. values are clamped between
* 0.5 and 1.5. 1.0 is the default.
*/
#define GST_RESAMPLER_OPT_SHARPNESS "GstResampler.sharpness"
#define GST_VIDEO_RESAMPLER_OPT_SHARPNESS "GstVideoResampler.sharpness"
/**
* GST_RESAMPLER_OPT_SHARPEN:
* GST_VIDEO_RESAMPLER_OPT_SHARPEN:
*
* G_TYPE_DOUBLE, specifies sharpening of the filter for
* @GST_RESAMPLER_METHOD_LANCZOS. values are clamped between
* @GST_VIDEO_RESAMPLER_METHOD_LANCZOS. values are clamped between
* 0.0 and 1.0. 0.0 is the default.
*/
#define GST_RESAMPLER_OPT_SHARPEN "GstResampler.sharpen"
#define GST_VIDEO_RESAMPLER_OPT_SHARPEN "GstVideoResampler.sharpen"
/**
* GstResamplerFlags:
* @GST_RESAMPLER_FLAG_NONE: no flags
* GstVideoResamplerFlags:
* @GST_VIDEO_RESAMPLER_FLAG_NONE: no flags
*
* Different resampler flags.
*
* Since: 1.6
*/
typedef enum {
GST_RESAMPLER_FLAG_NONE = (0),
} GstResamplerFlags;
GST_VIDEO_RESAMPLER_FLAG_NONE = (0),
} GstVideoResamplerFlags;
/**
* GstResampler:
* GstVideoResampler:
* @in_size: the input size
* @out_size: the output size
* @max_taps: the maximum number of taps
@ -133,7 +133,7 @@ typedef enum {
*
* Since: 1.6
*/
struct _GstResampler
struct _GstVideoResampler
{
gint in_size;
gint out_size;
@ -148,16 +148,16 @@ struct _GstResampler
};
gboolean gst_resampler_init (GstResampler *resampler,
GstResamplerMethod method,
GstResamplerFlags flags,
gboolean gst_video_resampler_init (GstVideoResampler *resampler,
GstVideoResamplerMethod method,
GstVideoResamplerFlags flags,
guint n_phases, guint n_taps,
gdouble shift,
guint in_size, guint out_size,
GstStructure *options);
void gst_resampler_clear (GstResampler *resampler);
void gst_video_resampler_clear (GstVideoResampler *resampler);
G_END_DECLS
#endif /* __GST_RESAMPLER_H__ */
#endif /* __GST_VIDEO_RESAMPLER_H__ */

31
gst-libs/gst/video/video-scaler.c
View file

@ -25,7 +25,6 @@
#include <stdio.h>
#include <math.h>
#include "resampler.h"
#include <orc/orcfunctions.h>
#include "video-orc.h"
#include "video-scaler.h"
@ -42,18 +41,18 @@ typedef void (*GstVideoScalerVFunc) (GstVideoScaler * scale,
struct _GstVideoScaler
{
GstResamplerMethod method;
GstVideoResamplerMethod method;
GstVideoScalerFlags flags;
GstResampler resampler;
GstVideoResampler resampler;
/* cached integer coefficients */
gint16 *taps_s16;
};
static void
resampler_zip (GstResampler * resampler, const GstResampler * r1,
const GstResampler * r2)
resampler_zip (GstVideoResampler * resampler, const GstVideoResampler * r1,
const GstVideoResampler * r2)
{
guint i, out_size, max_taps;
gdouble *taps;
@ -77,7 +76,7 @@ resampler_zip (GstResampler * resampler, const GstResampler * r1,
for (i = 0; i < out_size; i++) {
guint idx = i / 2;
const GstResampler *r;
const GstVideoResampler *r;
r = (i & 1) ? r2 : r1;
@ -91,7 +90,7 @@ resampler_zip (GstResampler * resampler, const GstResampler * r1,
/**
* gst_video_scaler_new:
* @method: a #GstResamplerMethod
* @method: a #GstVideoResamplerMethod
* @flags: #GstVideoScalerFlags
* @n_taps: number of taps to use
* @in_size: number of source elements
@ -108,7 +107,7 @@ resampler_zip (GstResampler * resampler, const GstResampler * r1,
* Returns: a #GstVideoResample
*/
GstVideoScaler *
gst_video_scaler_new (GstResamplerMethod method, GstVideoScalerFlags flags,
gst_video_scaler_new (GstVideoResamplerMethod method, GstVideoScalerFlags flags,
guint n_taps, guint in_size, guint out_size, GstStructure * options)
{
GstVideoScaler *scale;
@ -124,21 +123,21 @@ gst_video_scaler_new (GstResamplerMethod method, GstVideoScalerFlags flags,
scale->flags = flags;
if (flags & GST_VIDEO_SCALER_FLAG_INTERLACED) {
GstResampler tresamp, bresamp;
GstVideoResampler tresamp, bresamp;
gst_resampler_init (&tresamp, method, 0, (out_size + 1) / 2, n_taps,
gst_video_resampler_init (&tresamp, method, 0, (out_size + 1) / 2, n_taps,
0.0, (in_size + 1) / 2, (out_size + 1) / 2, options);
gst_resampler_init (&bresamp, method, 0, out_size - tresamp.out_size,
gst_video_resampler_init (&bresamp, method, 0, out_size - tresamp.out_size,
n_taps, -1.0, in_size - tresamp.in_size,
out_size - tresamp.out_size, options);
resampler_zip (&scale->resampler, &tresamp, &bresamp);
gst_resampler_clear (&tresamp);
gst_resampler_clear (&bresamp);
gst_video_resampler_clear (&tresamp);
gst_video_resampler_clear (&bresamp);
} else {
gst_resampler_init (&scale->resampler, method, flags, out_size, n_taps,
0.0, in_size, out_size, options);
gst_video_resampler_init (&scale->resampler, method, flags, out_size,
n_taps, 0.0, in_size, out_size, options);
}
return scale;
}
@ -154,7 +153,7 @@ gst_video_scaler_free (GstVideoScaler * scale)
{
g_return_if_fail (scale != NULL);
gst_resampler_clear (&scale->resampler);
gst_video_resampler_clear (&scale->resampler);
g_free (scale->taps_s16);
g_slice_free (GstVideoScaler, scale);
}

4
gst-libs/gst/video/video-scaler.h
View file

@ -24,7 +24,7 @@
#include <gst/video/video-format.h>
#include <gst/video/video-color.h>
#include <gst/video/resampler.h>
#include <gst/video/video-resampler.h>
G_BEGIN_DECLS
@ -50,7 +50,7 @@ typedef enum {
typedef struct _GstVideoScaler GstVideoScaler;
GstVideoScaler * gst_video_scaler_new (GstResamplerMethod method,
GstVideoScaler * gst_video_scaler_new (GstVideoResamplerMethod method,
GstVideoScalerFlags flags,
guint n_taps,
guint in_size, guint out_size,