--- a/gst_plugins_good/ext/jpeg/gstsmokeenc.c Tue Jul 06 14:35:10 2010 +0300
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,412 +0,0 @@
-/* GStreamer
- * Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
- *
- * 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., 59 Temple Place - Suite 330,
- * Boston, MA 02111-1307, USA.
- */
-
-
-#ifdef HAVE_CONFIG_H
-#include "config.h"
-#endif
-#include <string.h>
-
-#include "gstsmokeenc.h"
-#include <gst/video/video.h>
-
-/* elementfactory information */
-static const GstElementDetails gst_smokeenc_details =
-GST_ELEMENT_DETAILS ("Smoke video encoder",
- "Codec/Encoder/Video",
- "Encode images into the Smoke format",
- "Wim Taymans <wim@fluendo.com>");
-
-GST_DEBUG_CATEGORY (smokeenc_debug);
-#define GST_CAT_DEFAULT smokeenc_debug
-
-#define SMOKEENC_DEFAULT_MIN_QUALITY 10
-#define SMOKEENC_DEFAULT_MAX_QUALITY 85
-#define SMOKEENC_DEFAULT_THRESHOLD 3000
-#define SMOKEENC_DEFAULT_KEYFRAME 20
-
-/* SmokeEnc signals and args */
-enum
-{
- FRAME_ENCODED,
- /* FILL ME */
- LAST_SIGNAL
-};
-
-enum
-{
- ARG_0,
- ARG_MIN_QUALITY,
- ARG_MAX_QUALITY,
- ARG_THRESHOLD,
- ARG_KEYFRAME
- /* FILL ME */
-};
-
-static void gst_smokeenc_base_init (gpointer g_class);
-static void gst_smokeenc_class_init (GstSmokeEnc * klass);
-static void gst_smokeenc_init (GstSmokeEnc * smokeenc);
-
-static GstFlowReturn gst_smokeenc_chain (GstPad * pad, GstBuffer * buf);
-static gboolean gst_smokeenc_setcaps (GstPad * pad, GstCaps * caps);
-static GstCaps *gst_smokeenc_getcaps (GstPad * pad);
-
-static void gst_smokeenc_resync (GstSmokeEnc * smokeenc);
-static void gst_smokeenc_set_property (GObject * object, guint prop_id,
- const GValue * value, GParamSpec * pspec);
-static void gst_smokeenc_get_property (GObject * object, guint prop_id,
- GValue * value, GParamSpec * pspec);
-
-static GstElementClass *parent_class = NULL;
-
-//static guint gst_smokeenc_signals[LAST_SIGNAL] = { 0 };
-
-GType
-gst_smokeenc_get_type (void)
-{
- static GType smokeenc_type = 0;
-
- if (!smokeenc_type) {
- static const GTypeInfo smokeenc_info = {
- sizeof (GstSmokeEncClass),
- (GBaseInitFunc) gst_smokeenc_base_init,
- NULL,
- (GClassInitFunc) gst_smokeenc_class_init,
- NULL,
- NULL,
- sizeof (GstSmokeEnc),
- 0,
- (GInstanceInitFunc) gst_smokeenc_init,
- };
-
- smokeenc_type =
- g_type_register_static (GST_TYPE_ELEMENT, "GstSmokeEnc", &smokeenc_info,
- 0);
- }
- return smokeenc_type;
-}
-
-static GstStaticPadTemplate gst_smokeenc_sink_pad_template =
-GST_STATIC_PAD_TEMPLATE ("sink",
- GST_PAD_SINK,
- GST_PAD_ALWAYS,
- GST_STATIC_CAPS (GST_VIDEO_CAPS_YUV ("I420"))
- );
-
-static GstStaticPadTemplate gst_smokeenc_src_pad_template =
-GST_STATIC_PAD_TEMPLATE ("src",
- GST_PAD_SRC,
- GST_PAD_ALWAYS,
- GST_STATIC_CAPS ("video/x-smoke, "
- "width = (int) [ 16, 4096 ], "
- "height = (int) [ 16, 4096 ], " "framerate = (fraction) [ 0/1, MAX ]")
- );
-
-static void
-gst_smokeenc_base_init (gpointer g_class)
-{
- GstElementClass *element_class = GST_ELEMENT_CLASS (g_class);
-
- gst_element_class_add_pad_template (element_class,
- gst_static_pad_template_get (&gst_smokeenc_sink_pad_template));
- gst_element_class_add_pad_template (element_class,
- gst_static_pad_template_get (&gst_smokeenc_src_pad_template));
- gst_element_class_set_details (element_class, &gst_smokeenc_details);
-}
-
-static void
-gst_smokeenc_class_init (GstSmokeEnc * klass)
-{
- GObjectClass *gobject_class;
- GstElementClass *gstelement_class;
-
- gobject_class = (GObjectClass *) klass;
- gstelement_class = (GstElementClass *) klass;
-
- parent_class = g_type_class_peek_parent (klass);
-
- gobject_class->set_property = gst_smokeenc_set_property;
- gobject_class->get_property = gst_smokeenc_get_property;
-
- g_object_class_install_property (gobject_class, ARG_MIN_QUALITY,
- g_param_spec_int ("qmin", "Qmin", "Minimum quality",
- 0, 100, SMOKEENC_DEFAULT_MIN_QUALITY, G_PARAM_READWRITE));
- g_object_class_install_property (gobject_class, ARG_MAX_QUALITY,
- g_param_spec_int ("qmax", "Qmax", "Maximum quality",
- 0, 100, SMOKEENC_DEFAULT_MAX_QUALITY, G_PARAM_READWRITE));
- g_object_class_install_property (gobject_class, ARG_THRESHOLD,
- g_param_spec_int ("threshold", "Threshold", "Motion estimation threshold",
- 0, 100000000, SMOKEENC_DEFAULT_THRESHOLD, G_PARAM_READWRITE));
- g_object_class_install_property (gobject_class, ARG_KEYFRAME,
- g_param_spec_int ("keyframe", "Keyframe",
- "Insert keyframe every N frames", 1, 100000,
- SMOKEENC_DEFAULT_KEYFRAME, G_PARAM_READWRITE));
-
- GST_DEBUG_CATEGORY_INIT (smokeenc_debug, "smokeenc", 0,
- "Smoke encoding element");
-}
-
-static void
-gst_smokeenc_init (GstSmokeEnc * smokeenc)
-{
- /* create the sink and src pads */
- smokeenc->sinkpad =
- gst_pad_new_from_static_template (&gst_smokeenc_sink_pad_template,
- "sink");
- gst_pad_set_chain_function (smokeenc->sinkpad, gst_smokeenc_chain);
- gst_pad_set_getcaps_function (smokeenc->sinkpad, gst_smokeenc_getcaps);
- gst_pad_set_setcaps_function (smokeenc->sinkpad, gst_smokeenc_setcaps);
- gst_element_add_pad (GST_ELEMENT (smokeenc), smokeenc->sinkpad);
-
- smokeenc->srcpad =
- gst_pad_new_from_static_template (&gst_smokeenc_src_pad_template, "src");
- gst_pad_set_getcaps_function (smokeenc->sinkpad, gst_smokeenc_getcaps);
- gst_pad_use_fixed_caps (smokeenc->sinkpad);
- /*gst_pad_set_link_function (smokeenc->sinkpad, gst_smokeenc_link); */
- gst_element_add_pad (GST_ELEMENT (smokeenc), smokeenc->srcpad);
-
- /* reset the initial video state */
- smokeenc->width = 0;
- smokeenc->height = 0;
- smokeenc->frame = 0;
- smokeenc->need_header = TRUE;
-
- gst_smokeenc_resync (smokeenc);
-
- smokeenc->min_quality = SMOKEENC_DEFAULT_MIN_QUALITY;
- smokeenc->max_quality = SMOKEENC_DEFAULT_MAX_QUALITY;
- smokeenc->threshold = SMOKEENC_DEFAULT_THRESHOLD;
- smokeenc->keyframe = SMOKEENC_DEFAULT_KEYFRAME;
-}
-
-static GstCaps *
-gst_smokeenc_getcaps (GstPad * pad)
-{
- GstSmokeEnc *smokeenc = GST_SMOKEENC (gst_pad_get_parent (pad));
- GstPad *otherpad;
- GstCaps *caps;
- const char *name;
- int i;
- GstStructure *structure = NULL;
-
- /* we want to proxy properties like width, height and framerate from the
- other end of the element */
- otherpad = (pad == smokeenc->srcpad) ? smokeenc->sinkpad : smokeenc->srcpad;
- caps = gst_pad_get_allowed_caps (otherpad);
- if (pad == smokeenc->srcpad) {
- name = "image/x-smoke";
- } else {
- name = "video/x-raw-yuv";
- }
- for (i = 0; i < gst_caps_get_size (caps); i++) {
- structure = gst_caps_get_structure (caps, i);
-
- gst_structure_set_name (structure, name);
- gst_structure_remove_field (structure, "format");
- /* ... but for the sink pad, we only do I420 anyway, so add that */
- if (pad == smokeenc->sinkpad) {
- gst_structure_set (structure, "format", GST_TYPE_FOURCC,
- GST_STR_FOURCC ("I420"), NULL);
- }
- }
-
- gst_object_unref (smokeenc);
-
- return caps;
-}
-
-static gboolean
-gst_smokeenc_setcaps (GstPad * pad, GstCaps * caps)
-{
- GstSmokeEnc *smokeenc = GST_SMOKEENC (gst_pad_get_parent (pad));
- GstStructure *structure;
- gboolean ret = TRUE;
- GstCaps *othercaps;
- GstPad *otherpad;
- const GValue *framerate;
-
- otherpad = (pad == smokeenc->srcpad) ? smokeenc->sinkpad : smokeenc->srcpad;
-
- structure = gst_caps_get_structure (caps, 0);
- framerate = gst_structure_get_value (structure, "framerate");
- if (framerate) {
- smokeenc->fps_num = gst_value_get_fraction_numerator (framerate);
- smokeenc->fps_denom = gst_value_get_fraction_denominator (framerate);
- } else {
- smokeenc->fps_num = 0;
- smokeenc->fps_denom = 1;
- }
-
- gst_structure_get_int (structure, "width", &smokeenc->width);
- gst_structure_get_int (structure, "height", &smokeenc->height);
-
- othercaps = gst_caps_copy (gst_pad_get_pad_template_caps (otherpad));
- gst_caps_set_simple (othercaps,
- "width", G_TYPE_INT, smokeenc->width,
- "height", G_TYPE_INT, smokeenc->height,
- "framerate", GST_TYPE_FRACTION, smokeenc->fps_num, smokeenc->fps_denom,
- NULL);
-
- ret = gst_pad_set_caps (smokeenc->srcpad, othercaps);
- gst_caps_unref (othercaps);
-
- if (GST_PAD_LINK_SUCCESSFUL (ret)) {
- gst_smokeenc_resync (smokeenc);
- }
-
- gst_object_unref (smokeenc);
-
- return ret;
-}
-
-static void
-gst_smokeenc_resync (GstSmokeEnc * smokeenc)
-{
- GST_DEBUG ("gst_smokeenc_resync: resync");
-
- smokecodec_encode_new (&smokeenc->info, smokeenc->width, smokeenc->height,
- smokeenc->fps_num, smokeenc->fps_denom);
- smokecodec_set_quality (smokeenc->info, smokeenc->min_quality,
- smokeenc->max_quality);
-
- GST_DEBUG ("gst_smokeenc_resync: resync done");
-}
-
-static GstFlowReturn
-gst_smokeenc_chain (GstPad * pad, GstBuffer * buf)
-{
- GstSmokeEnc *smokeenc;
- guchar *data, *outdata;
- gulong size;
- gint outsize;
- guint encsize;
- GstBuffer *outbuf;
- SmokeCodecFlags flags;
- GstFlowReturn ret;
-
- smokeenc = GST_SMOKEENC (GST_OBJECT_PARENT (pad));
-
- data = GST_BUFFER_DATA (buf);
- size = GST_BUFFER_SIZE (buf);
-
- GST_DEBUG ("gst_smokeenc_chain: got buffer of %ld bytes in '%s'", size,
- GST_OBJECT_NAME (smokeenc));
-
- if (smokeenc->need_header) {
- outbuf = gst_buffer_new ();
- outsize = 256;
- outdata = g_malloc (outsize);
- GST_BUFFER_DATA (outbuf) = outdata;
- GST_BUFFER_MALLOCDATA (outbuf) = outdata;
- GST_BUFFER_TIMESTAMP (outbuf) = GST_BUFFER_TIMESTAMP (buf);
- GST_BUFFER_DURATION (outbuf) = GST_BUFFER_DURATION (buf);
-
- smokecodec_encode_id (smokeenc->info, outdata, &encsize);
-
- GST_BUFFER_SIZE (outbuf) = encsize;
-
- ret = gst_pad_push (smokeenc->srcpad, outbuf);
-
- smokeenc->need_header = FALSE;
- }
-
- outbuf = gst_buffer_new ();
- outsize = smokeenc->width * smokeenc->height * 3;
- outdata = g_malloc (outsize);
- GST_BUFFER_DATA (outbuf) = outdata;
- GST_BUFFER_MALLOCDATA (outbuf) = outdata;
- GST_BUFFER_TIMESTAMP (outbuf) = GST_BUFFER_TIMESTAMP (buf);
- GST_BUFFER_DURATION (outbuf) =
- smokeenc->fps_denom * GST_SECOND / smokeenc->fps_num;
-
- flags = 0;
- if ((smokeenc->frame % smokeenc->keyframe) == 0) {
- flags |= SMOKECODEC_KEYFRAME;
- }
- smokecodec_set_quality (smokeenc->info, smokeenc->min_quality,
- smokeenc->max_quality);
- smokecodec_set_threshold (smokeenc->info, smokeenc->threshold);
- smokecodec_encode (smokeenc->info, data, flags, outdata, &encsize);
- gst_buffer_unref (buf);
-
- GST_BUFFER_SIZE (outbuf) = encsize;
- GST_BUFFER_OFFSET (outbuf) = smokeenc->frame;
- GST_BUFFER_OFFSET_END (outbuf) = smokeenc->frame + 1;
-
- ret = gst_pad_push (smokeenc->srcpad, outbuf);
-
- smokeenc->frame++;
-
- return ret;
-}
-
-static void
-gst_smokeenc_set_property (GObject * object, guint prop_id,
- const GValue * value, GParamSpec * pspec)
-{
- GstSmokeEnc *smokeenc;
-
- g_return_if_fail (GST_IS_SMOKEENC (object));
- smokeenc = GST_SMOKEENC (object);
-
- switch (prop_id) {
- case ARG_MIN_QUALITY:
- smokeenc->min_quality = g_value_get_int (value);
- break;
- case ARG_MAX_QUALITY:
- smokeenc->max_quality = g_value_get_int (value);
- break;
- case ARG_THRESHOLD:
- smokeenc->threshold = g_value_get_int (value);
- break;
- case ARG_KEYFRAME:
- smokeenc->keyframe = g_value_get_int (value);
- break;
- default:
- break;
- }
-}
-
-static void
-gst_smokeenc_get_property (GObject * object, guint prop_id, GValue * value,
- GParamSpec * pspec)
-{
- GstSmokeEnc *smokeenc;
-
- g_return_if_fail (GST_IS_SMOKEENC (object));
- smokeenc = GST_SMOKEENC (object);
-
- switch (prop_id) {
- case ARG_MIN_QUALITY:
- g_value_set_int (value, smokeenc->min_quality);
- break;
- case ARG_MAX_QUALITY:
- g_value_set_int (value, smokeenc->max_quality);
- break;
- case ARG_THRESHOLD:
- g_value_set_int (value, smokeenc->threshold);
- break;
- case ARG_KEYFRAME:
- g_value_set_int (value, smokeenc->keyframe);
- break;
- default:
- G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
- break;
- }
-}