RoQ video encoder

patch by Vitor: \vitor1001 gmail com/
original thread: [FFmpeg-devel] RoQ video encoder (take 3)
date: 06/08/2007 10:34 PM

Originally committed as revision 9420 to svn://svn.ffmpeg.org/ffmpeg/trunk

Changelog

@@ -87,6 +87,7 @@ version <next>
 - extern C declarations for C++ removed from headers
 - sws_flags command line option
 - codebook generator
+- RoQ video encoder
 
 version 0.4.9-pre1:
 

doc/ffmpeg-doc.texi

@@ -1027,7 +1027,7 @@ following image formats are supported:
 @item Cirrus Logic AccuPak   @tab     @tab  X @tab fourcc: CLJR
 @item 4X Video               @tab     @tab  X @tab Used in certain computer games.
 @item Sony Playstation MDEC  @tab     @tab  X
-@item Id RoQ                 @tab     @tab  X @tab Used in Quake III, Jedi Knight 2, other computer games.
+@item Id RoQ                 @tab  X  @tab  X @tab Used in Quake III, Jedi Knight 2, other computer games.
 @item Xan/WC3                @tab     @tab  X @tab Used in Wing Commander III .MVE files.
 @item Interplay Video        @tab     @tab  X @tab Used in Interplay .MVE files.
 @item Apple Animation        @tab     @tab  X @tab fourcc: 'rle '

libavcodec/Makefile

@@ -135,6 +135,7 @@ OBJS-$(CONFIG_QTRLE_DECODER)           += qtrle.o
 OBJS-$(CONFIG_RA_144_DECODER)          += ra144.o
 OBJS-$(CONFIG_RA_288_DECODER)          += ra288.o
 OBJS-$(CONFIG_ROQ_DECODER)             += roqvideodec.o roqvideo.o
+OBJS-$(CONFIG_ROQ_ENCODER)             += roqvideoenc.o roqvideo.o elbg.o
 OBJS-$(CONFIG_ROQ_DPCM_DECODER)        += dpcm.o
 OBJS-$(CONFIG_ROQ_DPCM_ENCODER)        += roqaudioenc.o
 OBJS-$(CONFIG_RPZA_DECODER)            += rpza.o

libavcodec/allcodecs.c

@@ -124,7 +124,7 @@ void avcodec_register_all(void)
     REGISTER_DECODER(QPEG, qpeg);
     REGISTER_DECODER(QTRLE, qtrle);
     REGISTER_ENCDEC (RAWVIDEO, rawvideo);
-    REGISTER_DECODER(ROQ, roq);
+    REGISTER_ENCDEC (ROQ, roq);
     REGISTER_DECODER(RPZA, rpza);
     REGISTER_ENCDEC (RV10, rv10);
     REGISTER_ENCDEC (RV20, rv20);

libavcodec/allcodecs.h

@@ -57,6 +57,7 @@ extern AVCodec pgmyuv_encoder;
 extern AVCodec png_encoder;
 extern AVCodec ppm_encoder;
 extern AVCodec roq_dpcm_encoder;
+extern AVCodec roq_encoder;
 extern AVCodec rv10_encoder;
 extern AVCodec rv20_encoder;
 extern AVCodec sgi_encoder;

libavcodec/roqvideo.h

@@ -24,6 +24,7 @@
 
 #include "avcodec.h"
 #include "dsputil.h"
+#include "random.h"
 
 typedef struct {
   unsigned char y[4];
@@ -34,6 +35,10 @@ typedef struct {
   int idx[4];
 } roq_qcell;
 
+typedef struct {
+    int d[2];
+} motion_vect;
+
 typedef struct RoqContext {
 
     AVCodecContext *avctx;
@@ -41,6 +46,7 @@ typedef struct RoqContext {
     AVFrame frames[2];
     AVFrame *last_frame;
     AVFrame *current_frame;
+    int first_frame;
     int y_stride;
     int c_stride;
 
@@ -49,7 +55,22 @@ typedef struct RoqContext {
 
     unsigned char *buf;
     int size;
+    int width, height;
 
+    /* Encoder only data */
+    AVRandomState randctx;
+    uint64_t lambda;
+
+    motion_vect *this_motion4;
+    motion_vect *last_motion4;
+
+    motion_vect *this_motion8;
+    motion_vect *last_motion8;
+
+    unsigned int framesSinceKeyframe;
+
+    AVFrame *frame_to_enc;
+    uint8_t *out_buf;
 } RoqContext;
 
 #define RoQ_INFO              0x1001