== RED one (redcode) ==

This adds redcode (the file format of RED one, R3D) support to blender.
Seems to work fine with the footage I found on the web, but keep in
mind, that because of the unoptimized nature of libopenjpeg, frame
decoding isn't that fast.

It is also a rather challenging task, to make 4k-float-footage realtime :)

10 files changed, 944 insertions, 0 deletions

diff --git a/extern/libredcode/AUTHOR b/extern/libredcode/AUTHOR
new file mode 100644
index 00000000000..b3d20a4eb7a
--- /dev/null
+++ b/extern/libredcode/AUTHOR
@@ -0,0 +1 @@
+Peter Schlaile * peter at schlaile dot de
diff --git a/extern/libredcode/LICENSE b/extern/libredcode/LICENSE
new file mode 100644
index 00000000000..14db8fc79db
--- /dev/null
+++ b/extern/libredcode/LICENSE
@@ -0,0 +1,340 @@
+		    GNU GENERAL PUBLIC LICENSE
+		       Version 2, June 1991
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diff --git a/extern/libredcode/NOTES b/extern/libredcode/NOTES
new file mode 100644
index 00000000000..39101e0bd63
--- /dev/null
+++ b/extern/libredcode/NOTES
@@ -0,0 +1,23 @@
+This is a redcode decoder written solely by looking at some
+R3D files that are floating around on the web.
+
+This decoder works with the files I tested, but I don't give
+any guarantee (especially, if RED decides to change the
+file format).
+
+That said: I found it a really nice idea of them, to make
+such a clear and comprehensible file layout.
+
+Choosing JPEG2000 as an encoding format and the way, they
+did YCbCr encoding of the sensor data is simply brilliant.
+
+My approach of decoding the sensor data is probably not
+so brilliant, but seems to work rather nicely (and sharply!).
+
+If someone finds a better way and/or RED decides to release
+specification, just go ahead and feel free to change it!
+
+Until that happens: simply enjoy opening RED footage within Blender!
+
+-- Peter Schlaile, June 2008
+
diff --git a/extern/libredcode/SConscript b/extern/libredcode/SConscript
new file mode 100644
index 00000000000..4e83ba5cbb4
--- /dev/null
+++ b/extern/libredcode/SConscript
@@ -0,0 +1,28 @@
+#!/usr/bin/python
+
+import sys
+import os
+import shutil
+
+Import('env')
+
+sources = env.Glob('*.c')
+incs = '. ../libopenjpeg'
+
+root = "extern/libredcode"
+
+if not os.path.isdir(root + "/include"):
+    os.mkdir(root + "/include");
+if not os.path.isdir(root + "/include/redcode"):
+    os.mkdir(root + "/include/redcode");
+
+for h in env.Glob('*.h'):
+    shutil.copyfile(root + "/" + h,
+                    root + "/include/redcode/" + h)
+
+
+env.BlenderLib ( libname='extern_redcode', 
+                 sources=sources, includes=Split(incs),
+                 defines=[],
+                 libtype=['core','intern','player'],
+                 priority=[5, 5, 200], compileflags = [])
diff --git a/extern/libredcode/codec.c b/extern/libredcode/codec.c
new file mode 100644
index 00000000000..e0b79119e80
--- /dev/null
+++ b/extern/libredcode/codec.c
@@ -0,0 +1,141 @@
+#include "codec.h"
+#include "format.h"
+#include "debayer.h"
+
+#include <openjpeg.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+
+static void error_callback(const char *msg, void *client_data) {
+	FILE *stream = (FILE*)client_data;
+	fprintf(stream, "[R3D ERR] %s", msg);
+}
+
+static void warning_callback(const char *msg, void *client_data) {
+	FILE *stream = (FILE*)client_data;
+	fprintf(stream, "[R3D WARN] %s", msg);
+}
+
+static void info_callback(const char *msg, void *client_data) {
+	(void)client_data;
+	fprintf(stdout, "[R3D INFO] %s", msg);
+}
+
+#define J2K_CFMT 0
+#define JP2_CFMT 1
+#define JPT_CFMT 2
+
+struct redcode_frame_raw * redcode_decode_video_raw(
+	struct redcode_frame * frame, int scale)
+{
+	struct redcode_frame_raw * rv = NULL;
+	opj_dparameters_t parameters;	/* decompression parameters */
+	opj_event_mgr_t event_mgr;		/* event manager */
+	opj_image_t *image = NULL;
+	opj_dinfo_t* dinfo = NULL;	/* handle to a decompressor */
+	opj_cio_t *cio = NULL;
+
+	memset(&event_mgr, 0, sizeof(opj_event_mgr_t));
+	event_mgr.error_handler = error_callback;
+	event_mgr.warning_handler = warning_callback;
+	event_mgr.info_handler = info_callback;
+
+	opj_set_default_decoder_parameters(&parameters);
+
+	parameters.decod_format = JP2_CFMT;
+
+	if (scale == 2) {
+		parameters.cp_reduce = 1;
+	} else if (scale == 4) {
+		parameters.cp_reduce = 2;
+	} else if (scale == 8) {
+		parameters.cp_reduce = 3;
+	}
+
+	/* JPEG 2000 compressed image data */
+	
+	/* get a decoder handle */
+	dinfo = opj_create_decompress(CODEC_JP2);
+
+	/* catch events using our callbacks and give a local context */
+	opj_set_event_mgr((opj_common_ptr)dinfo, &event_mgr, stderr);
+	
+	/* setup the decoder decoding parameters using the current image 
+	   and user parameters */
+	opj_setup_decoder(dinfo, &parameters);
+			
+	/* open a byte stream */
+	cio = opj_cio_open((opj_common_ptr)dinfo, 
+			   frame->data + frame->offset, frame->length);
+
+	image = opj_decode(dinfo, cio);			
+
+	if(!image) {
+		fprintf(stderr, 
+			"ERROR -> j2k_to_image: failed to decode image!\n");
+		opj_destroy_decompress(dinfo);
+		opj_cio_close(cio);
+		return 0;
+	}
+
+	/* close the byte stream */
+	opj_cio_close(cio);
+
+	/* free remaining structures */
+	if(dinfo) {
+		opj_destroy_decompress(dinfo);
+	}
+
+	if((image->numcomps * image->x1 * image->y1) == 0) {
+		opj_image_destroy(image);
+		return 0;
+	}
+		
+	rv = (struct redcode_frame_raw *) calloc(
+		1, sizeof(struct redcode_frame_raw));
+
+	rv->data = image;
+	rv->width = image->comps[0].w;
+	rv->height = image->comps[0].h;
+
+	return rv;
+}
+
+int redcode_decode_video_float(struct redcode_frame_raw * frame, 
+			       float * out, int scale)
+{
+	int* planes[4];
+	int i;
+	opj_image_t *image = (opj_image_t*) frame->data;
+
+	if (image->numcomps != 4) {
+		fprintf(stderr, "R3D: need 4 planes, but got: %d\n",
+			image->numcomps);
+		return 0;
+	}
+
+	for (i = 0; i < 4; i++) {
+		planes[i] = image->comps[i].data;
+	}
+
+	if (scale == 1) {
+		redcode_ycbcr2rgb_fullscale(
+			planes, frame->width, frame->height, out);
+	} else if (scale == 2) {
+		redcode_ycbcr2rgb_halfscale(
+			planes, frame->width, frame->height, out);
+	} else if (scale == 4) {
+		redcode_ycbcr2rgb_quarterscale(
+			planes, frame->width, frame->height, out);
+	}
+
+	opj_image_destroy(image);
+
+	free(frame);
+
+	return 1;
+}
+
+
+
diff --git a/extern/libredcode/codec.h b/extern/libredcode/codec.h
new file mode 100644
index 00000000000..928cab589ed
--- /dev/null
+++ b/extern/libredcode/codec.h
@@ -0,0 +1,34 @@
+#ifndef __redcode_codec_h_included__
+#define __redcode_codec_h_included__
+
+struct redcode_frame;
+
+struct redcode_frame_raw {
+	void * data;
+	int width;
+	int height;
+};
+
+/* do the JPEG2000 decompression into YCbCrY planes */
+struct redcode_frame_raw * redcode_decode_video_raw(
+	struct redcode_frame * frame, int scale);
+
+/* finally decode RAW frame into out-buffer (which has to be allocated
+   in advance)
+
+   Keep in mind: frame_raw-width + height is half sized. 
+   (one pixel contains 2x2 bayer-sensor data)
+
+   output-buffer should have room for
+
+   scale = 1 : width * height * 4 * 4 * sizeof(float)
+   scale = 2 : width * height * 4 * sizeof(float)
+   scale = 4 : width * height * sizeof(float)
+
+*/
+
+int redcode_decode_video_float(struct redcode_frame_raw * frame, 
+			       float * out, int scale);
+
+
+#endif
diff --git a/extern/libredcode/debayer.c b/extern/libredcode/debayer.c
new file mode 100644
index 00000000000..f7f22e1cc54
--- /dev/null
+++ b/extern/libredcode/debayer.c
@@ -0,0 +1,129 @@
+#include "debayer.h"
+
+/* pretty simple but astonishingly very effective "debayer" function 
+ */
+
+void redcode_ycbcr2rgb_fullscale(
+	int ** planes, int width, int height, float * out)
+{
+	int x,y;
+	int pix_max = 4096;
+	int mask = pix_max - 1;
+	float Kb = 0.0722;
+	float Kr = 0.2126;
+	float *o;
+
+	for (y = 0; y < height; y++) {
+		for (x = 0; x < width; x++) {
+			int i = x + y*width;
+			int i_p = (y > 0) ? i-width : i;
+			int i_n = (y < (height-1)) ? i + width : i;
+			float y1n = planes[0][i_n] & mask;
+			float y1  = planes[0][i] & mask;
+			float cb  = (planes[1][i] & mask)   - pix_max/2;
+			float cr  = (planes[2][i] & mask)   - pix_max/2;
+			float y2  = (planes[3][i] & mask);
+			float y2p = (planes[3][i_p] & mask);
+
+			float b_ = cb * (1.0 - Kb)/(pix_max/2);
+			float r_ = cr * (1.0 - Kr)/(pix_max/2);
+			float g_ = (- Kr * r_ - Kb * b_)/(1.0 - Kr - Kb);
+		
+			float y_[4] = {y1 / pix_max, 
+				       (y2 + y2p)/2 / pix_max, 
+				       (y1 + y1n)/2 / pix_max, 
+				       y2 / pix_max};
+
+			int j;
+			int yc = 0;
+
+			o = out + (2*height-1-2*y)*2*4*width 
+				+ x*2*4;
+
+			for (j = 0; j < 8; j += 4) {
+				o[j+0] = r_ + y_[yc];
+				o[j+1] = g_ + y_[yc];
+				o[j+2] = b_ + y_[yc];
+				o[j+3] = 1.0;
+				yc++;
+			}
+			
+			o = out + (2*height-1-2*y)*2*4*width 
+				+ x*2*4 - 2*4*width;
+
+			for (j = 0; j < 8; j += 4) {
+				o[j+0] = r_ + y_[yc];
+				o[j+1] = g_ + y_[yc];
+				o[j+2] = b_ + y_[yc];
+				o[j+3] = 1.0;
+				yc++;
+			}
+		}
+	}
+}
+
+void redcode_ycbcr2rgb_halfscale(
+	int ** planes, int width, int height, float * out)
+{
+	int x,y;
+	int pix_max = 4096;
+	int mask = pix_max - 1;
+	float Kb = 0.0722;
+	float Kr = 0.2126;
+
+	for (y = 0; y < height; y++) {
+		float *o = out + width * (height - y - 1);
+		for (x = 0; x < width; x++) {
+			int i = y*height + x;
+			float y1  = (planes[0][i] & mask);
+			float cb  = (planes[1][i] & mask)  - pix_max/2;
+			float cr  = (planes[2][i] & mask)  - pix_max/2;
+			float y2  = (planes[3][i] & mask);
+
+			float b_ = cb * (1.0 - Kb)/(pix_max/2);
+			float r_ = cr * (1.0 - Kr)/(pix_max/2);
+			float g_ = (- Kr * r_ - Kb * b_)/(1.0 - Kr - Kb);
+			
+			float y = (y1 + y2)/2 / pix_max;
+
+			*o++ = r_ + y;
+			*o++ = g_ + y;
+			*o++ = b_ + y;
+			*o++ = 1.0;
+		}
+	}
+}
+
+
+void redcode_ycbcr2rgb_quarterscale(
+	int ** planes, int width, int height, float * out)
+{
+	int x,y;
+	int pix_max = 4096;
+	int mask = pix_max - 1;
+	float Kb = 0.0722;
+	float Kr = 0.2126;
+
+	for (y = 0; y < height; y += 2) {
+		float *o = out + (width/2) * (height/2 - y/2 - 1);
+		for (x = 0; x < width; x += 2) {
+			int i = y * width + x;
+			float y1  = planes[0][i] & mask;
+			float cb  = (planes[1][i] & mask)  - pix_max/2;
+			float cr  = (planes[2][i] & mask)  - pix_max/2;
+			float y2  = planes[3][i] & mask;
+
+			float b_ = cb * (1.0 - Kb)/(pix_max/2);
+			float r_ = cr * (1.0 - Kr)/(pix_max/2);
+			float g_ = (- Kr * r_ - Kb * b_)/(1.0 - Kr - Kb);
+			
+			float y = (y1 + y2)/2 / pix_max;
+			
+			*o++ = r_ + y;
+			*o++ = g_ + y;
+			*o++ = b_ + y;
+			*o++ = 1.0;
+		}
+	}
+}
+
diff --git a/extern/libredcode/debayer.h b/extern/libredcode/debayer.h
new file mode 100644
index 00000000000..b58c7678671
--- /dev/null
+++ b/extern/libredcode/debayer.h
@@ -0,0 +1,11 @@
+#ifndef __redcode_debayer_h_included__
+#define __redcode_debayer_h_included__ 1
+
+void redcode_ycbcr2rgb_fullscale(
+	int ** planes, int width, int height, float * out);
+void redcode_ycbcr2rgb_halfscale(
+	int ** planes, int width, int height, float * out);
+void redcode_ycbcr2rgb_quarterscale(
+	int ** planes, int width, int height, float * out);
+
+#endif
diff --git a/extern/libredcode/format.c b/extern/libredcode/format.c
new file mode 100644
index 00000000000..35410e9e269
--- /dev/null
+++ b/extern/libredcode/format.c
@@ -0,0 +1,213 @@
+#include <netinet/in.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include "format.h"
+
+struct red_reob {
+	unsigned long len;
+	char head[4];
+
+	unsigned long rdvo;
+	unsigned long rdvs;
+	unsigned long rdao;
+	unsigned long rdas;
+
+	unsigned long unknown1;
+	unsigned long unknown2;
+	unsigned long totlen;
+	
+	unsigned long avgv;
+	unsigned long avgs;
+
+	unsigned long unknown3;
+	unsigned long unknown4;
+	unsigned long unknown5;
+};
+
+struct redcode_handle {
+	FILE * fp;
+	struct red_reob * reob;
+        unsigned long * rdvo;
+	unsigned long * rdvs;
+	unsigned long * rdao;
+	unsigned long * rdas;
+	long cfra;
+};
+
+
+static unsigned char* read_packet(FILE * fp, char * expect)
+{
+	unsigned long len;
+	char head[5];
+	unsigned char * rv;
+
+	fread(&len, 4, 1, fp);
+	fread(&head, 4, 1, fp);
+
+	head[4] = 0;
+
+	len = ntohl(len);
+
+	if (strcmp(expect, head) != 0) {
+		fprintf(stderr, "Read: %s, expect: %s\n", head, expect);
+		return NULL;
+	}
+
+	rv = (unsigned char*) malloc(len + 8);
+
+	memcpy(rv, &len, 4);
+	memcpy(rv + 4, &head, 4);
+	
+	fread(rv + 8, len, 1, fp);
+
+	return rv;
+}
+
+static unsigned long * read_index_packet(FILE * fp, char * expect)
+{
+	unsigned long * rv = (unsigned long*) read_packet(fp, expect);
+	int i;
+
+	if (!rv) {
+		return NULL;
+	}
+
+	for (i = 2; i < rv[0]/4; i++) {
+		rv[i] = ntohl(rv[i]);
+	}
+	return rv;
+}
+
+static struct red_reob * read_reob(FILE * fp)
+{
+	fseek(fp, -0x38, SEEK_END);
+
+	return (struct red_reob *) read_index_packet(fp, "REOB");
+}
+
+static unsigned long * read_index(FILE * fp, unsigned long i, char * expect)
+{
+	fseek(fp, i, SEEK_SET);
+	
+	return (unsigned long*) read_index_packet(fp, expect);
+}
+
+static unsigned char * read_data(FILE * fp, unsigned long i, char * expect)
+{
+	fseek(fp, i, SEEK_SET);
+	
+	return read_packet(fp, expect);
+}
+
+struct redcode_handle * redcode_open(const char * fname)
+{
+	struct redcode_handle * rv = NULL;
+	struct red_reob * reob = NULL;
+
+	FILE * fp = fopen(fname, "rb");
+
+	if (!fp) {
+		return NULL;
+	}
+
+	reob = read_reob(fp);
+	if (!reob) {
+		fclose(fp);
+		return NULL;
+	}
+
+	rv = (struct redcode_handle*) calloc(1, sizeof(struct redcode_handle));
+
+	rv->fp = fp;
+	rv->reob = reob;
+	rv->rdvo = read_index(fp, reob->rdvo, "RDVO");
+	rv->rdvs = read_index(fp, reob->rdvs, "RDVS");
+	rv->rdao = read_index(fp, reob->rdao, "RDAO");
+	rv->rdas = read_index(fp, reob->rdas, "RDAS");
+
+	if (!rv->rdvo || !rv->rdvs || !rv->rdao || !rv->rdas) {
+		redcode_close(rv);
+		return NULL;
+	}
+
+	return rv;
+}
+
+void redcode_close(struct redcode_handle * handle)
+{
+	if (handle->reob) {
+		free(handle->reob);
+	}
+	if (handle->rdvo) {
+		free(handle->rdvo);
+	}
+	if (handle->rdvs) {
+		free(handle->rdvs);
+	}
+	if (handle->rdao) {
+		free(handle->rdao);
+	}
+	if (handle->rdas) {
+		free(handle->rdas);
+	}
+	fclose(handle->fp);
+	free(handle);
+}
+
+long redcode_get_length(struct redcode_handle * handle)
+{
+	return handle->rdvo[0]/4;
+}
+
+struct redcode_frame * redcode_read_video_frame(
+	struct redcode_handle * handle, long frame)
+{
+	struct redcode_frame * rv;
+	unsigned char * data;
+
+	if (frame > handle->rdvo[0]/4 || handle->rdvo[frame + 2] == 0) {
+		return NULL;
+	}
+	data = read_data(handle->fp, handle->rdvo[frame + 2], "REDV");
+	if (!data) {
+		return NULL;
+	}
+
+	rv = (struct redcode_frame*) calloc(1, sizeof(struct redcode_frame));
+
+	rv->offset = 12+8;
+	rv->length = *(unsigned long*)data - rv->offset;
+	rv->data = data;
+
+	return rv;
+}
+
+struct redcode_frame * redcode_read_audio_frame(
+	struct redcode_handle * handle, long frame)
+{
+	struct redcode_frame * rv;
+	unsigned char * data;
+
+	if (frame > handle->rdao[0]/4 || handle->rdao[frame + 2] == 0) {
+		return NULL;
+	}
+	data = read_data(handle->fp, handle->rdao[frame+2], "REDA");
+	if (!data) {
+		return NULL;
+	}
+
+	rv = (struct redcode_frame*) calloc(1, sizeof(struct redcode_frame));
+
+	rv->offset = 24+8;
+	rv->length = *(unsigned long*)data - rv->offset;
+	rv->data = data;
+
+	return rv;
+}
+
+void redcode_free_frame(struct redcode_frame * frame)
+{
+	free(frame->data);
+	free(frame);
+}
diff --git a/extern/libredcode/format.h b/extern/libredcode/format.h
new file mode 100644
index 00000000000..e09ea8a3b64
--- /dev/null
+++ b/extern/libredcode/format.h
@@ -0,0 +1,24 @@
+#ifndef __redcode_format_h_included__
+#define __redcode_format_h_included__
+
+struct redcode_handle;
+struct redcode_frame {
+	unsigned long length;
+	unsigned long offset;
+	unsigned char * data;
+};
+
+struct redcode_handle * redcode_open(const char * fname);
+void redcode_close(struct redcode_handle * handle);
+
+long redcode_get_length(struct redcode_handle * handle);
+
+struct redcode_frame * redcode_read_video_frame(
+	struct redcode_handle * handle, long frame);
+struct redcode_frame * redcode_read_audio_frame(
+	struct redcode_handle * handle, long frame);
+
+void redcode_free_frame(struct redcode_frame * frame);
+
+
+#endif