Merge remote-tracking branch 'seife/master'

Origin commit data ------------------ Branch: master Commit: 0aec8dda78 Author: martii <m4rtii@gmx.de> Date: 2013-05-27 (Mon, 27 May 2013) ------------------ No further description and justification available within origin commit message! ------------------ This commit was generated by Migit
2025-08-27 15:32:43 +02:00 · 2013-05-27 17:38:35 +02:00
parent 9b5a05c931 9db763cac7
commit 2dfbaf80b8
4 changed files with 161 additions and 11 deletions
--- a/configure.ac
+++ b/configure.ac
@@ -24,10 +24,11 @@ if test x"$BOXTYPE" = x"tripledragon"; then
 fi

 if test x$BOXTYPE = xgeneric; then
-	TUXBOX_APPS_LIB_PKGCONFIG(AVFORMAT,libavformat)
-	TUXBOX_APPS_LIB_PKGCONFIG(AVCODEC,libavcodec)
-	TUXBOX_APPS_LIB_PKGCONFIG(AVUTIL,libavutil)
-	TUXBOX_APPS_LIB_PKGCONFIG(SWSCALE,libswscale)
+	PKG_CHECK_MODULES([AVFORMAT], [libavformat >= 53.21.1])
+	PKG_CHECK_MODULES([AVCODEC], [libavcodec >= 54.28.0])
+	# don't know which version is exactly needed here...
+	PKG_CHECK_MODULES([AVUTIL], [libavutil])
+	PKG_CHECK_MODULES([SWSCALE], [libswscale])
 fi
 AC_OUTPUT([
 Makefile
--- a/generic-pc/glfb.cpp
+++ b/generic-pc/glfb.cpp
@@ -121,6 +121,11 @@ void GLFramebuffer::initKeys()
 	mSpecialMap[GLUT_KEY_F3] = KEY_YELLOW;
 	mSpecialMap[GLUT_KEY_F4] = KEY_BLUE;

+	mSpecialMap[GLUT_KEY_F5] = KEY_WWW;
+	mSpecialMap[GLUT_KEY_F6] = KEY_SUBTITLE;
+	mSpecialMap[GLUT_KEY_F7] = KEY_MOVE;
+	mSpecialMap[GLUT_KEY_F8] = KEY_SLEEP;
+
 	mSpecialMap[GLUT_KEY_PAGE_UP]   = KEY_PAGEUP;
 	mSpecialMap[GLUT_KEY_PAGE_DOWN] = KEY_PAGEDOWN;

@@ -412,7 +417,7 @@ void GLFramebuffer::render()
 	glBindTexture(GL_TEXTURE_2D, mState.displaytex);
 	drawSquare(zoom, xscale);
 	glBindTexture(GL_TEXTURE_2D, mState.osdtex);
-	drawSquare(1.0);
+	drawSquare(1.0, -100);

 	glFlush();
 	glutSwapBuffers();
@@ -467,6 +472,31 @@ void GLFramebuffer::drawSquare(float size, float x_factor)
 		 0.0, 1.0,
 		 1.0, 1.0,
 	};
+	if (x_factor > -99.0) { /* x_factor == -100 => OSD */
+		if (videoDecoder &&
+		    videoDecoder->pig_x > 0 && videoDecoder->pig_y > 0 &&
+		    videoDecoder->pig_w > 0 && videoDecoder->pig_h > 0) {
+			/* these calculations even consider cropping and panscan mode
+			 * maybe this could be done with some clever opengl tricks? */
+			double w2 = (double)mState.width * 0.5l;
+			double h2 = (double)mState.height * 0.5l;
+			double x = (double)(videoDecoder->pig_x - w2) / w2 / x_factor / size;
+			double y = (double)(h2 - videoDecoder->pig_y) / h2 / size;
+			double w = (double)videoDecoder->pig_w / w2;
+			double h = (double)videoDecoder->pig_h / h2;
+			x += ((1.0l - x_factor * size) / 2.0l) * w / x_factor / size;
+			y += ((size - 1.0l) / 2.0l) * h / size;
+			vertices[0] = x + w;		/* top right x */
+			vertices[1] = y;		/* top right y */
+			vertices[2] = x;		/* top left x */
+			vertices[3] = y;		/* top left y */
+			vertices[4] = x;		/* bottom left x */
+			vertices[5] = y - h;		/* bottom left y */
+			vertices[6] = vertices[0];	/* bottom right x */
+			vertices[7] = vertices[5];	/* bottom right y */
+		}
+	} else
+		x_factor = 1.0; /* OSD */

 	glPushMatrix();
 	glScalef(size * x_factor, size, size);
--- a/generic-pc/video.cpp
+++ b/generic-pc/video.cpp
@@ -44,6 +44,7 @@ extern "C" {
 #include "lt_debug.h"
 #define lt_debug(args...) _lt_debug(TRIPLE_DEBUG_VIDEO, this, args)
 #define lt_info(args...) _lt_info(TRIPLE_DEBUG_VIDEO, this, args)
+#define lt_info_c(args...) _lt_info(TRIPLE_DEBUG_VIDEO, NULL, args)

 cVideo *videoDecoder = NULL;
 extern cDemux *videoDemux;
@@ -77,6 +78,7 @@ cVideo::cVideo(int, void *, void *)
 	buf_num = 0;
 	buf_in = 0;
 	buf_out = 0;
+	pig_x = pig_y = pig_w = pig_h = 0;
 	display_aspect = DISPLAY_AR_16_9;
 	display_crop = DISPLAY_AR_MODE_LETTERBOX;
 	v_format = VIDEO_FORMAT_MPEG2;
@@ -324,8 +326,12 @@ int cVideo::getBlank(void)
 	return 0;
 }

-void cVideo::Pig(int, int, int, int, int, int)
+void cVideo::Pig(int x, int y, int w, int h, int, int)
 {
+	pig_x = x;
+	pig_y = y;
+	pig_w = w;
+	pig_h = h;
 }

 void cVideo::getPictureInfo(int &width, int &height, int &rate)
@@ -394,6 +400,7 @@ void cVideo::run(void)
 	AVFrame *frame, *rgbframe;
 	uint8_t *inbuf = (uint8_t *)av_malloc(INBUF_SIZE);
 	AVPacket avpkt;
+	struct SwsContext *convert = NULL;

 	time_t warn_r = 0; /* last read error */
 	time_t warn_d = 0; /* last decode error */
@@ -475,9 +482,10 @@ void cVideo::run(void)
 			lt_info("%s: WARN: pkt->size %d != len %d\n", __func__, avpkt.size, len);
 		if (got_frame) {
 			unsigned int need = avpicture_get_size(PIX_FMT_RGB32, c->width, c->height);
-			struct SwsContext *convert = sws_getContext(c->width, c->height, c->pix_fmt,
-								    c->width, c->height, PIX_FMT_RGB32,
-								    SWS_BICUBIC, 0, 0, 0);
+			convert = sws_getCachedContext(convert,
+						       c->width, c->height, c->pix_fmt,
+						       c->width, c->height, PIX_FMT_RGB32,
+						       SWS_BICUBIC, 0, 0, 0);
 			if (!convert)
 				lt_info("%s: ERROR setting up SWS context\n", __func__);
 			else {
@@ -489,7 +497,6 @@ void cVideo::run(void)
 						c->width, c->height);
 				sws_scale(convert, frame->data, frame->linesize, 0, c->height,
 						rgbframe->data, rgbframe->linesize);
-				sws_freeContext(convert);
 				if (dec_w != c->width || dec_h != c->height) {
 					lt_info("%s: pic changed %dx%d -> %dx%d\n", __func__,
 							dec_w, dec_h, c->width, c->height);
@@ -523,6 +530,7 @@ void cVideo::run(void)
 		}
 		av_free_packet(&avpkt);
 	}
+	sws_freeContext(convert);
 out2:
 	avcodec_close(c);
 	avcodec_free_frame(&frame);
@@ -538,3 +546,107 @@ void cVideo::run(void)
 	buf_out = 0;
 	lt_info("======================== end decoder thread ================================\n");
 }
+
+static bool swscale(unsigned char *src, unsigned char *dst, int sw, int sh, int dw, int dh)
+{
+	bool ret = false;
+	struct SwsContext *scale = NULL;
+	AVFrame *sframe, *dframe;
+	scale = sws_getCachedContext(scale, sw, sh, PIX_FMT_RGB32, dw, dh, PIX_FMT_RGB32, SWS_BICUBIC, 0, 0, 0);
+	if (!scale) {
+		lt_info_c("%s: ERROR setting up SWS context\n", __func__);
+		return false;
+	}
+	sframe = avcodec_alloc_frame();
+	dframe = avcodec_alloc_frame();
+	if (!sframe || !dframe) {
+		lt_info_c("%s: could not alloc sframe (%p) or dframe (%p)\n", __func__, sframe, dframe);
+		goto out;
+	}
+	avpicture_fill((AVPicture *)sframe, &(src[0]), PIX_FMT_RGB32, sw, sh);
+	avpicture_fill((AVPicture *)dframe, &(dst[0]), PIX_FMT_RGB32, dw, dh);
+	sws_scale(scale, sframe->data, sframe->linesize, 0, sh, dframe->data, dframe->linesize);
+ out:
+	avcodec_free_frame(&sframe);
+	avcodec_free_frame(&dframe);
+	sws_freeContext(scale);
+	return ret;
+}
+
+bool cVideo::GetScreenImage(unsigned char * &data, int &xres, int &yres, bool get_video, bool get_osd, bool scale_to_video)
+{
+	lt_info("%s: data 0x%p xres %d yres %d vid %d osd %d scale %d\n",
+		__func__, data, xres, yres, get_video, get_osd, scale_to_video);
+	SWFramebuffer video;
+	std::vector<unsigned char> *osd = NULL;
+	std::vector<unsigned char> s_osd; /* scaled OSD */
+	int vid_w = 0, vid_h = 0;
+	int osd_w = glfb->getOSDWidth();
+	int osd_h = glfb->getOSDHeight();
+	xres = osd_w;
+	yres = osd_h;
+	if (get_video) {
+		buf_m.lock();
+		video = buffers[buf_out];
+		buf_m.unlock();
+		vid_w = video.width();
+		vid_h = video.height();
+		if (scale_to_video || !get_osd) {
+			xres = vid_w;
+			yres = vid_h;
+			AVRational a = video.AR();
+			/* TODO: this does not consider display_aspect and display_crop */
+			if (a.num > 0 && a.den > 0)
+				xres = vid_w * a.num / a.den;
+		}
+	}
+	if (get_osd)
+		osd = glfb->getOSDBuffer();
+	unsigned int need = avpicture_get_size(PIX_FMT_RGB32, xres, yres);
+	data = (unsigned char *)realloc(data, need); /* will be freed by caller */
+	if (data == NULL)	/* out of memory? */
+		return false;
+
+	if (get_video) {
+		if (vid_w != xres || vid_h != yres) /* scale video into data... */
+			swscale(&video[0], data, vid_w, vid_h, xres, yres);
+		else /* get_video and no fancy scaling needed */
+			memcpy(data, &video[0], xres * yres * sizeof(uint32_t));
+	}
+
+	if (get_osd && (osd_w != xres || osd_h != yres)) {
+		/* rescale osd */
+		s_osd.resize(need);
+		swscale(&(*osd)[0], &s_osd[0], osd_w, osd_h, xres, yres);
+		osd = &s_osd;
+	}
+
+	if (get_video && get_osd) {
+		/* alpha blend osd onto data (video). TODO: maybe libavcodec can do this? */
+		uint32_t *d = (uint32_t *)data;
+		uint32_t *pixpos = (uint32_t *)&(*osd)[0];
+		for (int count = 0; count < yres; count++) {
+			for (int count2 = 0; count2 < xres; count2++ ) {
+				uint32_t pix = *pixpos;
+				if ((pix & 0xff000000) == 0xff000000)
+					*d = pix;
+				else {
+					uint8_t *in = (uint8_t *)(pixpos);
+					uint8_t *out = (uint8_t *)d;
+					int a = in[3];	/* TODO: big/little endian? */
+					*out = (*out + ((*in - *out) * a) / 256);
+					in++; out++;
+					*out = (*out + ((*in - *out) * a) / 256);
+					in++; out++;
+					*out = (*out + ((*in - *out) * a) / 256);
+				}
+				d++;
+				pixpos++;
+			}
+		}
+	}
+	else if (get_osd) /* only get_osd, data is not yet populated */
+		memcpy(data, &(*osd)[0], xres * yres * sizeof(uint32_t));
+
+	return true;
+}
--- a/generic-pc/video_lib.h
+++ b/generic-pc/video_lib.h
@@ -121,7 +121,8 @@ typedef enum
 #define VDEC_MAXBUFS 0x30
 class cVideo : public OpenThreads::Thread
 {
-	public:
+	friend class GLFramebuffer;
+	private:
 		/* called from GL thread */
 		class SWFramebuffer : public std::vector<unsigned char>
 		{
@@ -142,6 +143,7 @@ class cVideo : public OpenThreads::Thread
 			AVRational mAR;
 		};
 		int buf_in, buf_out, buf_num;
+	public:
 		/* constructor & destructor */
 		cVideo(int mode, void *, void *);
 		~cVideo(void);
@@ -190,6 +192,7 @@ class cVideo : public OpenThreads::Thread
 		int  CloseVBI(void) { return 0; };
 		int  StartVBI(unsigned short) { return 0; };
 		int  StopVBI(void) { return 0; };
+		bool GetScreenImage(unsigned char * &data, int &xres, int &yres, bool get_video = true, bool get_osd = false, bool scale_to_video = false);
 		SWFramebuffer *getDecBuf(void);
 	private:
 		void run();
@@ -204,6 +207,10 @@ class cVideo : public OpenThreads::Thread
 		DISPLAY_AR display_aspect;
 		DISPLAY_AR_MODE display_crop;
 		int output_h;
+		int pig_x;
+		int pig_y;
+		int pig_w;
+		int pig_h;
 };

 #endif