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-rw-r--r--src/decoder.cc80
1 files changed, 80 insertions, 0 deletions
diff --git a/src/decoder.cc b/src/decoder.cc
index ac076a4..214e8bc 100644
--- a/src/decoder.cc
+++ b/src/decoder.cc
@@ -25,6 +25,9 @@
*/
/*
* $Log$
+ * Revision 1.24 2005/05/02 10:35:23 deva
+ * Fixed wrongly showed snapshot thumbnails.
+ *
* Revision 1.23 2005/05/02 09:58:43 deva
*
* Fixed initial values of the stae bools.
@@ -44,6 +47,13 @@
#include <fcntl.h>
#include <errno.h>
*/
+
+#include <time.h>
+
+// Use libdv
+#include <libdv/dv.h>
+#include <libdv/dv_types.h>
+
#include <SDL/SDL.h>
#include "dv1394.h"
@@ -67,13 +77,18 @@ Decoder::Decoder(Error* err,
player_queue = gplayer_queue;
mutex = gmutex;
running = grunning;
+
b_shoot = false;
b_freeze = false;
b_record = false; // Initially no recording is done.
+
+ pthread_mutex_init (&shot_mutex, NULL);
+ shot = NULL;
}
Decoder::~Decoder()
{
+ pthread_mutex_destroy(&shot_mutex);
}
void Decoder::decode()
@@ -99,6 +114,19 @@ void Decoder::decode()
b_freeze = false;
local_record = b_record;
+ if(b_shoot) {
+ pthread_mutex_lock(&shot_mutex);
+ if(!shot) shot = new Frame(ptr, DVPACKAGE_SIZE);
+ pthread_mutex_unlock(&shot_mutex);
+ }
+
+ if(b_freeze) {
+ pthread_mutex_lock(&shot_mutex);
+ if(shot) delete shot;
+ shot = new Frame(ptr, DVPACKAGE_SIZE);
+ pthread_mutex_unlock(&shot_mutex);
+ }
+
Frame *eframe = new Frame(ptr, DVPACKAGE_SIZE);
eframe->shoot = local_shoot;
eframe->freeze = local_freeze;
@@ -147,7 +175,26 @@ void Decoder::freeze()
*/
void Decoder::shoot(unsigned char *rgb)
{
+ struct timespec ts;
+
b_shoot = true;
+
+ // Wait for shot to be taken
+ while(1) {
+ pthread_mutex_lock(&shot_mutex);
+ if(shot) {
+ getScreenshot(shot, rgb);
+ delete shot;
+ shot = NULL;
+ pthread_mutex_unlock(&shot_mutex);
+ return;
+ }
+ pthread_mutex_unlock(&shot_mutex);
+
+ ts.tv_sec = 0;
+ ts.tv_nsec = 100000000L; // 100ms
+ nanosleep(&ts, NULL);
+ }
}
/*
@@ -166,5 +213,38 @@ void Decoder::stop(n_savestate save)
b_record = false;
}
+void Decoder::getScreenshot(Frame *frame, unsigned char *rgb)
+{
+ unsigned char *pixels[3];
+ int pitches[3];
+
+ pixels[ 0 ] = rgb;
+ pixels[ 1 ] = NULL;
+ pixels[ 2 ] = NULL;
+
+ pitches[ 0 ] = 720 * 4;
+ pitches[ 1 ] = 0;
+ pitches[ 2 ] = 0;
+
+ dv_decoder_t *decoder = dv_decoder_new(FALSE/*this value is unused*/, FALSE, FALSE);
+ decoder->quality = DV_QUALITY_BEST;
+
+ dv_parse_header(decoder, frame->data);
+
+ decoder->system = e_dv_system_625_50; // PAL lines, PAL framerate
+ decoder->sampling = e_dv_sample_422; // 4 bytes y, 2 bytes u, 2 bytes v
+ decoder->std = e_dv_std_iec_61834;
+ decoder->num_dif_seqs = 12;
+
+ // libdv img decode to rgb
+ dv_decode_full_frame(decoder,
+ frame->data,
+ e_dv_color_bgr0,
+ pixels,
+ pitches);
+
+ dv_decoder_free(decoder);
+}
+
#endif /*USE_GUI*/