+++ /dev/null
-/* GStreamer libswscale wrapper
- * Copyright (C) 2005 Luca Ognibene <luogni@tin.it>
- * Copyright (C) 2006 Martin Zlomek <martin.zlomek@itonis.tv>
- * Copyright (C) 2008 Mark Nauwelaerts <mnauw@users.sf.net>
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Library General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Library General Public License for more details.
- *
- * You should have received a copy of the GNU Library General Public
- * License along with this library; if not, write to the
- * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
- * Boston, MA 02110-1301, USA.
- */
-
-#ifdef HAVE_CONFIG_H
-#include "config.h"
-#endif
-
-#include <libswscale/swscale.h>
-
-#include <gst/gst.h>
-#include <gst/base/gstbasetransform.h>
-#include <gst/video/video.h>
-
-#ifdef HAVE_ORC
-#include <orc/orc.h>
-#endif
-
-#include <string.h>
-
-typedef struct _GstFFMpegScale
-{
- GstBaseTransform element;
-
- /* pads */
- GstPad *sinkpad, *srcpad;
-
- /* state */
- GstVideoInfo in_info, out_info;
-
- enum AVPixelFormat in_pixfmt, out_pixfmt;
- struct SwsContext *ctx;
-
- /* property */
- gint method;
-} GstFFMpegScale;
-
-typedef struct _GstFFMpegScaleClass
-{
- GstBaseTransformClass parent_class;
-} GstFFMpegScaleClass;
-
-#define GST_TYPE_FFMPEGSCALE \
- (gst_ffmpegscale_get_type())
-#define GST_FFMPEGSCALE(obj) \
- (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_FFMPEGSCALE,GstFFMpegScale))
-#define GST_FFMPEGSCALE_CLASS(klass) \
- (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_FFMPEGSCALE,GstFFMpegScaleClass))
-#define GST_IS_FFMPEGSCALE(obj) \
- (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_FFMPEGSCALE))
-#define GST_IS_FFMPEGSCALE_CLASS(klass) \
- (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_FFMPEGSCALE))
-
-GType gst_ffmpegscale_get_type (void);
-
-GST_DEBUG_CATEGORY (ffmpegscale_debug);
-#define GST_CAT_DEFAULT ffmpegscale_debug
-
-/* libswscale supported formats depend on endianness */
-#if G_BYTE_ORDER == G_BIG_ENDIAN
-#define VIDEO_CAPS \
- GST_VIDEO_CAPS_MAKE ("{ RGB, BGR, xRGB, xBGR, ARGB, ABGR, I420, YUY2, UYVY, Y41B, Y42B }")
-#else
-#define VIDEO_CAPS \
- GST_VIDEO_CAPS_MAKE ("{ RGB, BGR, RGBx, BGRx, RGBA, BGRA, I420, YUY2, UYVY, Y41B, Y42B }")
-#endif
-
-static GstStaticPadTemplate src_factory = GST_STATIC_PAD_TEMPLATE ("src",
- GST_PAD_SRC,
- GST_PAD_ALWAYS,
- GST_STATIC_CAPS (VIDEO_CAPS)
- );
-
-static GstStaticPadTemplate sink_factory = GST_STATIC_PAD_TEMPLATE ("sink",
- GST_PAD_SINK,
- GST_PAD_ALWAYS,
- GST_STATIC_CAPS (VIDEO_CAPS)
- );
-
-static gint gst_ffmpegscale_method_flags[] = {
- SWS_FAST_BILINEAR,
- SWS_BILINEAR,
- SWS_BICUBIC,
- SWS_X,
- SWS_POINT,
- SWS_AREA,
- SWS_BICUBLIN,
- SWS_GAUSS,
- SWS_SINC,
- SWS_LANCZOS,
- SWS_SPLINE,
-};
-
-#define GST_TYPE_FFMPEGSCALE_METHOD (gst_ffmpegscale_method_get_type())
-static GType
-gst_ffmpegscale_method_get_type (void)
-{
- static GType ffmpegscale_method_type = 0;
-
- static const GEnumValue ffmpegscale_methods[] = {
- {0, "Fast Bilinear", "fast-bilinear"},
- {1, "Bilinear", "bilinear"},
- {2, "Bicubic", "bicubic"},
- {3, "Experimental", "experimental"},
- {4, "Nearest Neighbour", "nearest-neighbour"},
- {5, "Area", "area"},
- {6, "Luma Bicubic / Chroma Linear", "bicubic-lin"},
- {7, "Gauss", "gauss"},
- {8, "SincR", "sincr"},
- {9, "Lanczos", "lanczos"},
- {10, "Natural Bicubic Spline", "bicubic-spline"},
- {0, NULL, NULL},
- };
-
- if (!ffmpegscale_method_type) {
- ffmpegscale_method_type =
- g_enum_register_static ("GstLibAVVideoScaleMethod",
- ffmpegscale_methods);
- }
- return ffmpegscale_method_type;
-}
-
-#define DEFAULT_PROP_METHOD 2
-
-enum
-{
- PROP_0,
- PROP_METHOD
- /* FILL ME */
-};
-
-#define gst_ffmpegscale_parent_class parent_class
-G_DEFINE_TYPE (GstFFMpegScale, gst_ffmpegscale, GST_TYPE_BASE_TRANSFORM);
-
-static void gst_ffmpegscale_finalize (GObject * object);
-static void gst_ffmpegscale_set_property (GObject * object, guint prop_id,
- const GValue * value, GParamSpec * pspec);
-static void gst_ffmpegscale_get_property (GObject * object, guint prop_id,
- GValue * value, GParamSpec * pspec);
-
-static gboolean gst_ffmpegscale_stop (GstBaseTransform * trans);
-static GstCaps *gst_ffmpegscale_transform_caps (GstBaseTransform * trans,
- GstPadDirection direction, GstCaps * caps, GstCaps * filter);
-static GstCaps *gst_ffmpegscale_fixate_caps (GstBaseTransform * trans,
- GstPadDirection direction, GstCaps * caps, GstCaps * othercaps);
-static gboolean gst_ffmpegscale_get_unit_size (GstBaseTransform * trans,
- GstCaps * caps, gsize * size);
-static gboolean gst_ffmpegscale_set_caps (GstBaseTransform * trans,
- GstCaps * incaps, GstCaps * outcaps);
-static GstFlowReturn gst_ffmpegscale_transform (GstBaseTransform * trans,
- GstBuffer * inbuf, GstBuffer * outbuf);
-
-static gboolean gst_ffmpegscale_src_event (GstBaseTransform * trans,
- GstEvent * event);
-
-static void
-gst_ffmpegscale_class_init (GstFFMpegScaleClass * klass)
-{
- GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
- GstElementClass *gstelement_class = GST_ELEMENT_CLASS (klass);
- GstBaseTransformClass *trans_class = GST_BASE_TRANSFORM_CLASS (klass);
-
- gobject_class->finalize = gst_ffmpegscale_finalize;
- gobject_class->set_property = gst_ffmpegscale_set_property;
- gobject_class->get_property = gst_ffmpegscale_get_property;
-
- g_object_class_install_property (gobject_class, PROP_METHOD,
- g_param_spec_enum ("method", "method", "method",
- GST_TYPE_FFMPEGSCALE_METHOD, DEFAULT_PROP_METHOD,
- G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
-
- gst_element_class_add_static_pad_template (gstelement_class, &src_factory);
- gst_element_class_add_static_pad_template (gstelement_class, &sink_factory);
-
- gst_element_class_set_static_metadata (gstelement_class,
- "libav Scale element", "Filter/Converter/Video",
- "Converts video from one resolution to another",
- "Luca Ognibene <luogni@tin.it>, Mark Nauwelaerts <mnauw@users.sf.net>");
-
- trans_class->stop = GST_DEBUG_FUNCPTR (gst_ffmpegscale_stop);
- trans_class->transform_caps =
- GST_DEBUG_FUNCPTR (gst_ffmpegscale_transform_caps);
- trans_class->fixate_caps = GST_DEBUG_FUNCPTR (gst_ffmpegscale_fixate_caps);
- trans_class->get_unit_size =
- GST_DEBUG_FUNCPTR (gst_ffmpegscale_get_unit_size);
- trans_class->set_caps = GST_DEBUG_FUNCPTR (gst_ffmpegscale_set_caps);
- trans_class->transform = GST_DEBUG_FUNCPTR (gst_ffmpegscale_transform);
- trans_class->src_event = GST_DEBUG_FUNCPTR (gst_ffmpegscale_src_event);
-
- trans_class->passthrough_on_same_caps = TRUE;
-}
-
-static void
-gst_ffmpegscale_init (GstFFMpegScale * scale)
-{
- scale->method = DEFAULT_PROP_METHOD;
- scale->ctx = NULL;
- scale->in_pixfmt = AV_PIX_FMT_NONE;
- scale->out_pixfmt = AV_PIX_FMT_NONE;
-}
-
-static void
-gst_ffmpegscale_reset (GstFFMpegScale * scale)
-{
- if (scale->ctx != NULL) {
- sws_freeContext (scale->ctx);
- scale->ctx = NULL;
- }
-
- scale->in_pixfmt = AV_PIX_FMT_NONE;
- scale->out_pixfmt = AV_PIX_FMT_NONE;
-}
-
-static void
-gst_ffmpegscale_finalize (GObject * object)
-{
- GstFFMpegScale *scale = GST_FFMPEGSCALE (object);
-
- gst_ffmpegscale_reset (scale);
-
- G_OBJECT_CLASS (parent_class)->finalize (object);
-}
-
-/* copies the given caps */
-static GstCaps *
-gst_ffmpegscale_caps_remove_format_info (GstCaps * caps)
-{
- int i;
- GstStructure *structure;
-
- caps = gst_caps_copy (caps);
-
- for (i = 0; i < gst_caps_get_size (caps); i++) {
- structure = gst_caps_get_structure (caps, i);
-
- gst_structure_remove_field (structure, "format");
- }
-
- return caps;
-}
-
-static GstCaps *
-gst_ffmpegscale_transform_caps (GstBaseTransform * trans,
- GstPadDirection direction, GstCaps * caps, GstCaps * filter)
-{
- GstCaps *ret;
- GstStructure *structure;
- const GValue *par;
-
- /* this function is always called with a simple caps */
- g_return_val_if_fail (GST_CAPS_IS_SIMPLE (caps), NULL);
-
- structure = gst_caps_get_structure (caps, 0);
-
- ret = gst_caps_copy (caps);
- structure = gst_structure_copy (gst_caps_get_structure (ret, 0));
-
- gst_structure_set (structure,
- "width", GST_TYPE_INT_RANGE, 1, G_MAXINT,
- "height", GST_TYPE_INT_RANGE, 1, G_MAXINT, NULL);
-
- ret = gst_caps_merge_structure (ret, gst_structure_copy (structure));
-
- /* if pixel aspect ratio, make a range of it */
- if ((par = gst_structure_get_value (structure, "pixel-aspect-ratio"))) {
- gst_structure_set (structure,
- "pixel-aspect-ratio", GST_TYPE_FRACTION_RANGE, 0, 1, G_MAXINT, 1, NULL);
-
- ret = gst_caps_merge_structure (ret, structure);
- } else {
- gst_structure_free (structure);
- }
-
- /* now also unfix colour space format */
- gst_caps_append (ret, gst_ffmpegscale_caps_remove_format_info (ret));
-
- GST_DEBUG_OBJECT (trans, "returning caps: %" GST_PTR_FORMAT, ret);
-
- return ret;
-}
-
-static GstCaps *
-gst_ffmpegscale_fixate_caps (GstBaseTransform * trans,
- GstPadDirection direction, GstCaps * caps, GstCaps * othercaps)
-{
- GstStructure *ins, *outs;
- const GValue *from_par, *to_par;
-
- othercaps = gst_caps_make_writable (othercaps);
-
- GST_DEBUG_OBJECT (trans, "trying to fixate othercaps %" GST_PTR_FORMAT
- " based on caps %" GST_PTR_FORMAT, othercaps, caps);
-
- ins = gst_caps_get_structure (caps, 0);
- outs = gst_caps_get_structure (othercaps, 0);
-
- from_par = gst_structure_get_value (ins, "pixel-aspect-ratio");
- to_par = gst_structure_get_value (outs, "pixel-aspect-ratio");
-
- /* we have both PAR but they might not be fixated */
- if (from_par && to_par) {
- gint from_w, from_h, from_par_n, from_par_d, to_par_n, to_par_d;
- gint count = 0, w = 0, h = 0;
- guint num, den;
-
- /* from_par should be fixed */
- g_return_val_if_fail (gst_value_is_fixed (from_par), othercaps);
-
- from_par_n = gst_value_get_fraction_numerator (from_par);
- from_par_d = gst_value_get_fraction_denominator (from_par);
-
- /* fixate the out PAR */
- if (!gst_value_is_fixed (to_par)) {
- GST_DEBUG_OBJECT (trans, "fixating to_par to %dx%d", from_par_n,
- from_par_d);
- gst_structure_fixate_field_nearest_fraction (outs, "pixel-aspect-ratio",
- from_par_n, from_par_d);
- }
-
- to_par_n = gst_value_get_fraction_numerator (to_par);
- to_par_d = gst_value_get_fraction_denominator (to_par);
-
- /* if both width and height are already fixed, we can't do anything
- * about it anymore */
- if (gst_structure_get_int (outs, "width", &w))
- ++count;
- if (gst_structure_get_int (outs, "height", &h))
- ++count;
- if (count == 2) {
- GST_DEBUG_OBJECT (trans, "dimensions already set to %dx%d, not fixating",
- w, h);
- return othercaps;
- }
-
- gst_structure_get_int (ins, "width", &from_w);
- gst_structure_get_int (ins, "height", &from_h);
-
- if (!gst_video_calculate_display_ratio (&num, &den, from_w, from_h,
- from_par_n, from_par_d, to_par_n, to_par_d)) {
- GST_ELEMENT_ERROR (trans, CORE, NEGOTIATION, (NULL),
- ("Error calculating the output scaled size - integer overflow"));
- return othercaps;
- }
-
- GST_DEBUG_OBJECT (trans,
- "scaling input with %dx%d and PAR %d/%d to output PAR %d/%d",
- from_w, from_h, from_par_n, from_par_d, to_par_n, to_par_d);
- GST_DEBUG_OBJECT (trans, "resulting output should respect ratio of %d/%d",
- num, den);
-
- /* now find a width x height that respects this display ratio.
- * prefer those that have one of w/h the same as the incoming video
- * using wd / hd = num / den */
-
- /* if one of the output width or height is fixed, we work from there */
- if (h) {
- GST_DEBUG_OBJECT (trans, "height is fixed,scaling width");
- w = (guint) gst_util_uint64_scale_int (h, num, den);
- } else if (w) {
- GST_DEBUG_OBJECT (trans, "width is fixed, scaling height");
- h = (guint) gst_util_uint64_scale_int (w, den, num);
- } else {
- /* none of width or height is fixed, figure out both of them based only on
- * the input width and height */
- /* check hd / den is an integer scale factor, and scale wd with the PAR */
- if (from_h % den == 0) {
- GST_DEBUG_OBJECT (trans, "keeping video height");
- h = from_h;
- w = (guint) gst_util_uint64_scale_int (h, num, den);
- } else if (from_w % num == 0) {
- GST_DEBUG_OBJECT (trans, "keeping video width");
- w = from_w;
- h = (guint) gst_util_uint64_scale_int (w, den, num);
- } else {
- GST_DEBUG_OBJECT (trans, "approximating but keeping video height");
- h = from_h;
- w = (guint) gst_util_uint64_scale_int (h, num, den);
- }
- }
- GST_DEBUG_OBJECT (trans, "scaling to %dx%d", w, h);
-
- /* now fixate */
- gst_structure_fixate_field_nearest_int (outs, "width", w);
- gst_structure_fixate_field_nearest_int (outs, "height", h);
- } else {
- gint width, height;
-
- if (gst_structure_get_int (ins, "width", &width)) {
- if (gst_structure_has_field (outs, "width")) {
- gst_structure_fixate_field_nearest_int (outs, "width", width);
- }
- }
- if (gst_structure_get_int (ins, "height", &height)) {
- if (gst_structure_has_field (outs, "height")) {
- gst_structure_fixate_field_nearest_int (outs, "height", height);
- }
- }
- }
-
- GST_DEBUG_OBJECT (trans, "fixated othercaps to %" GST_PTR_FORMAT, othercaps);
-
- return othercaps;
-}
-
-static gboolean
-gst_ffmpegscale_get_unit_size (GstBaseTransform * trans, GstCaps * caps,
- gsize * size)
-{
- GstVideoInfo info;
-
- if (!gst_video_info_from_caps (&info, caps))
- return FALSE;
-
- *size = info.size;
-
- GST_DEBUG_OBJECT (trans,
- "unit size = %" G_GSIZE_FORMAT " for format %d w %d height %d", *size,
- GST_VIDEO_INFO_FORMAT (&info), GST_VIDEO_INFO_WIDTH (&info),
- GST_VIDEO_INFO_HEIGHT (&info));
-
- return TRUE;
-}
-
-/* Convert a GstCaps (video/raw) to a FFMPEG PixFmt
- */
-static enum AVPixelFormat
-gst_ffmpeg_caps_to_pixfmt (const GstCaps * caps)
-{
- GstVideoInfo info;
- enum AVPixelFormat pix_fmt;
-
- GST_DEBUG ("converting caps %" GST_PTR_FORMAT, caps);
-
- if (gst_video_info_from_caps (&info, caps))
- goto invalid_caps;
-
- switch (GST_VIDEO_INFO_FORMAT (&info)) {
- case GST_VIDEO_FORMAT_YUY2:
- pix_fmt = AV_PIX_FMT_YUYV422;
- break;
- case GST_VIDEO_FORMAT_UYVY:
- pix_fmt = AV_PIX_FMT_UYVY422;
- break;
- case GST_VIDEO_FORMAT_I420:
- pix_fmt = AV_PIX_FMT_YUV420P;
- break;
- case GST_VIDEO_FORMAT_Y41B:
- pix_fmt = AV_PIX_FMT_YUV411P;
- break;
- case GST_VIDEO_FORMAT_Y42B:
- pix_fmt = AV_PIX_FMT_YUV422P;
- break;
- case GST_VIDEO_FORMAT_YUV9:
- pix_fmt = AV_PIX_FMT_YUV410P;
- break;
- case GST_VIDEO_FORMAT_ARGB:
- pix_fmt = AV_PIX_FMT_ARGB;
- break;
- case GST_VIDEO_FORMAT_RGBA:
- pix_fmt = AV_PIX_FMT_RGBA;
- break;
- case GST_VIDEO_FORMAT_BGRA:
- pix_fmt = AV_PIX_FMT_BGRA;
- break;
- case GST_VIDEO_FORMAT_ABGR:
- pix_fmt = AV_PIX_FMT_ABGR;
- break;
- case GST_VIDEO_FORMAT_BGR:
- pix_fmt = AV_PIX_FMT_BGR24;
- break;
- case GST_VIDEO_FORMAT_RGB:
- pix_fmt = AV_PIX_FMT_RGB24;
- break;
- case GST_VIDEO_FORMAT_RGB16:
- pix_fmt = AV_PIX_FMT_RGB565;
- break;
- case GST_VIDEO_FORMAT_RGB15:
- pix_fmt = AV_PIX_FMT_RGB555;
- break;
- case GST_VIDEO_FORMAT_RGB8P:
- pix_fmt = AV_PIX_FMT_PAL8;
- break;
- default:
- pix_fmt = AV_PIX_FMT_NONE;
- break;
- }
- return pix_fmt;
-
- /* ERROR */
-invalid_caps:
- {
- return AV_PIX_FMT_NONE;
- }
-}
-
-static gboolean
-gst_ffmpegscale_set_caps (GstBaseTransform * trans, GstCaps * incaps,
- GstCaps * outcaps)
-{
- GstFFMpegScale *scale = GST_FFMPEGSCALE (trans);
-#ifdef HAVE_ORC
- guint mmx_flags, altivec_flags;
-#endif
- gint swsflags;
- gboolean ok;
-
- g_return_val_if_fail (scale->method <
- G_N_ELEMENTS (gst_ffmpegscale_method_flags), FALSE);
-
- if (scale->ctx) {
- sws_freeContext (scale->ctx);
- scale->ctx = NULL;
- }
-
- ok = gst_video_info_from_caps (&scale->in_info, incaps);
- ok &= gst_video_info_from_caps (&scale->out_info, outcaps);
-
- scale->in_pixfmt = gst_ffmpeg_caps_to_pixfmt (incaps);
- scale->out_pixfmt = gst_ffmpeg_caps_to_pixfmt (outcaps);
-
- if (!ok || scale->in_pixfmt == AV_PIX_FMT_NONE ||
- scale->out_pixfmt == AV_PIX_FMT_NONE ||
- GST_VIDEO_INFO_FORMAT (&scale->in_info) == GST_VIDEO_FORMAT_UNKNOWN ||
- GST_VIDEO_INFO_FORMAT (&scale->out_info) == GST_VIDEO_FORMAT_UNKNOWN)
- goto refuse_caps;
-
- GST_DEBUG_OBJECT (scale, "format %d => %d, from=%dx%d -> to=%dx%d",
- GST_VIDEO_INFO_FORMAT (&scale->in_info),
- GST_VIDEO_INFO_FORMAT (&scale->out_info),
- GST_VIDEO_INFO_WIDTH (&scale->in_info),
- GST_VIDEO_INFO_HEIGHT (&scale->in_info),
- GST_VIDEO_INFO_WIDTH (&scale->out_info),
- GST_VIDEO_INFO_HEIGHT (&scale->out_info));
-
-#ifdef HAVE_ORC
- mmx_flags = orc_target_get_default_flags (orc_target_get_by_name ("mmx"));
- altivec_flags =
- orc_target_get_default_flags (orc_target_get_by_name ("altivec"));
- swsflags = (mmx_flags & ORC_TARGET_MMX_MMX ? SWS_CPU_CAPS_MMX : 0)
- | (mmx_flags & ORC_TARGET_MMX_MMXEXT ? SWS_CPU_CAPS_MMX2 : 0)
- | (mmx_flags & ORC_TARGET_MMX_3DNOW ? SWS_CPU_CAPS_3DNOW : 0)
- | (altivec_flags & ORC_TARGET_ALTIVEC_ALTIVEC ? SWS_CPU_CAPS_ALTIVEC : 0);
-#else
- swsflags = 0;
-#endif
-
- scale->ctx = sws_getContext (scale->in_info.width, scale->in_info.height,
- scale->in_pixfmt, scale->out_info.width, scale->out_info.height,
- scale->out_pixfmt, swsflags | gst_ffmpegscale_method_flags[scale->method],
- NULL, NULL, NULL);
- if (!scale->ctx)
- goto setup_failed;
-
- return TRUE;
-
- /* ERRORS */
-setup_failed:
- {
- GST_ELEMENT_ERROR (trans, LIBRARY, INIT, (NULL), (NULL));
- return FALSE;
- }
-refuse_caps:
- {
- GST_DEBUG_OBJECT (trans, "refused caps %" GST_PTR_FORMAT, incaps);
- return FALSE;
- }
-}
-
-static GstFlowReturn
-gst_ffmpegscale_transform (GstBaseTransform * trans, GstBuffer * inbuf,
- GstBuffer * outbuf)
-{
- GstFFMpegScale *scale = GST_FFMPEGSCALE (trans);
- GstVideoFrame in_frame, out_frame;
-
- if (!gst_video_frame_map (&in_frame, &scale->in_info, inbuf, GST_MAP_READ))
- goto invalid_buffer;
-
- if (!gst_video_frame_map (&out_frame, &scale->out_info, outbuf,
- GST_MAP_WRITE)) {
- gst_video_frame_unmap (&in_frame);
- goto invalid_buffer;
- }
-
- sws_scale (scale->ctx, (const guint8 **) in_frame.data, in_frame.info.stride,
- 0, scale->in_info.height, (guint8 **) out_frame.data,
- out_frame.info.stride);
-
- gst_video_frame_unmap (&in_frame);
- gst_video_frame_unmap (&out_frame);
-
- return GST_FLOW_OK;
-
- /* ERRORS */
-invalid_buffer:
- {
- return GST_FLOW_OK;
- }
-}
-
-static gboolean
-gst_ffmpegscale_src_event (GstBaseTransform * trans, GstEvent * event)
-{
- GstFFMpegScale *scale;
- GstStructure *structure;
- gdouble pointer;
- gboolean res;
-
- scale = GST_FFMPEGSCALE (trans);
-
- switch (GST_EVENT_TYPE (event)) {
- case GST_EVENT_NAVIGATION:
- event = gst_event_make_writable (event);
-
- structure = gst_event_writable_structure (event);
- if (gst_structure_get_double (structure, "pointer_x", &pointer)) {
- gst_structure_set (structure,
- "pointer_x", G_TYPE_DOUBLE,
- pointer * scale->in_info.width / scale->out_info.width, NULL);
- }
- if (gst_structure_get_double (structure, "pointer_y", &pointer)) {
- gst_structure_set (structure,
- "pointer_y", G_TYPE_DOUBLE,
- pointer * scale->in_info.height / scale->out_info.height, NULL);
- }
- break;
- default:
- break;
- }
-
- res = GST_BASE_TRANSFORM_CLASS (parent_class)->src_event (trans, event);
-
- return res;
-}
-
-static gboolean
-gst_ffmpegscale_stop (GstBaseTransform * trans)
-{
- GstFFMpegScale *scale = GST_FFMPEGSCALE (trans);
-
- gst_ffmpegscale_reset (scale);
-
- return TRUE;
-}
-
-static void
-gst_ffmpegscale_set_property (GObject * object, guint prop_id,
- const GValue * value, GParamSpec * pspec)
-{
- GstFFMpegScale *scale = GST_FFMPEGSCALE (object);
-
- switch (prop_id) {
- case PROP_METHOD:
- scale->method = g_value_get_enum (value);
- break;
- default:
- G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
- break;
- }
-}
-
-static void
-gst_ffmpegscale_get_property (GObject * object, guint prop_id, GValue * value,
- GParamSpec * pspec)
-{
- GstFFMpegScale *scale = GST_FFMPEGSCALE (object);
-
- switch (prop_id) {
- case PROP_METHOD:
- g_value_set_enum (value, scale->method);
- break;
- default:
- G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
- break;
- }
-}
-
-#ifndef GST_DISABLE_GST_DEBUG
-static void
-gst_ffmpeg_log_callback (void *ptr, int level, const char *fmt, va_list vl)
-{
- GstDebugLevel gst_level;
-
- switch (level) {
- case AV_LOG_QUIET:
- gst_level = GST_LEVEL_NONE;
- break;
- case AV_LOG_ERROR:
- gst_level = GST_LEVEL_ERROR;
- break;
- case AV_LOG_INFO:
- gst_level = GST_LEVEL_INFO;
- break;
- case AV_LOG_DEBUG:
- gst_level = GST_LEVEL_DEBUG;
- break;
- default:
- gst_level = GST_LEVEL_INFO;
- break;
- }
-
- gst_debug_log_valist (ffmpegscale_debug, gst_level, "", "", 0, NULL, fmt, vl);
-}
-#endif
-
-static gboolean
-plugin_init (GstPlugin * plugin)
-{
- GST_DEBUG_CATEGORY_INIT (ffmpegscale_debug, "avvideoscale", 0,
- "video scaling element");
-
-#ifdef HAVE_ORC
- orc_init ();
-#endif
-
-#ifndef GST_DISABLE_GST_DEBUG
- av_log_set_callback (gst_ffmpeg_log_callback);
-#endif
-
- return gst_element_register (plugin, "avvideoscale",
- GST_RANK_NONE, GST_TYPE_FFMPEGSCALE);
-}
-
-GST_PLUGIN_DEFINE (GST_VERSION_MAJOR,
- GST_VERSION_MINOR,
- avvideoscale,
- "libav videoscaling element (" LIBAV_SOURCE ")", plugin_init,
- PACKAGE_VERSION,
-#ifdef GST_LIBAV_ENABLE_GPL
- "GPL",
-#else
- "LGPL",
-#endif
- "libav", "http://www.libav.org/")
projects / platform / upstream / gstreamer.git / commitdiff