vd_ffmpeg added

git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@4953 b3059339-0415-0410-9bf9-f77b7e298cf2

libmpcodecs/Makefile

@@ -3,7 +3,7 @@ include ../config.mak
 
 LIBNAME = libmpcodecs.a
 
-SRCS=dec_video.c vd.c vd_null.c vd_cinepak.c vd_qtrpza.c
+SRCS=dec_video.c vd.c vd_null.c vd_cinepak.c vd_qtrpza.c vd_ffmpeg.c
 
 OBJS=$(SRCS:.c=.o)
 

libmpcodecs/vd_ffmpeg.c

@@ -0,0 +1,133 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <assert.h>
+
+#include "config.h"
+#include "mp_msg.h"
+#include "help_mp.h"
+
+#ifdef USE_LIBAVCODEC
+
+#include "bswap.h"
+
+#include "codec-cfg.h"
+#include "../libvo/img_format.h"
+
+#include "stream.h"
+#include "demuxer.h"
+#include "stheader.h"
+
+#include "vd.h"
+#include "vd_internal.h"
+
+static vd_info_t info = {
+	"FFmpeg's libavcodec codec family",
+	"ffmpeg",
+	VFM_FFMPEG,
+	"A'rpi",
+	"http://ffmpeg.sf.net",
+	"native codecs"
+};
+
+LIBVD_EXTERN(ffmpeg)
+
+#ifdef USE_LIBAVCODEC_SO
+#include <libffmpeg/avcodec.h>
+#else
+#include "libavcodec/avcodec.h"
+#endif
+
+int avcodec_inited=0;
+
+//#ifdef FF_POSTPROCESS
+//unsigned int lavc_pp=0;
+//#endif
+
+// to set/get/query special features/parameters
+static int control(sh_video_t *sh,int cmd,void* arg,...){
+    return CONTROL_UNKNOWN;
+}
+
+// init driver
+static int init(sh_video_t *sh){
+    AVCodec *lavc_codec;
+    AVCodecContext *ctx;
+
+    if(!avcodec_inited){
+      avcodec_init();
+      avcodec_register_all();
+      avcodec_inited=1;
+    }
+    
+    lavc_codec = (AVCodec *)avcodec_find_decoder_by_name(sh->codec->dll);
+    if(!lavc_codec){
+	mp_msg(MSGT_DECVIDEO,MSGL_ERR,MSGTR_MissingLAVCcodec,sh->codec->dll);
+	return 0;
+    }
+    
+    ctx = sh->context = malloc(sizeof(AVCodecContext));
+    memset(ctx, 0, sizeof(AVCodecContext));
+    
+    ctx->width = sh->disp_w;
+    ctx->height= sh->disp_h;
+    mp_dbg(MSGT_DECVIDEO,MSGL_DBG2,"libavcodec.size: %d x %d\n",ctx->width,ctx->height);
+    if (sh->format == mmioFOURCC('R', 'V', '1', '3'))
+	ctx->sub_id = 3;
+    /* open it */
+    if (avcodec_open(ctx, lavc_codec) < 0) {
+        mp_msg(MSGT_DECVIDEO,MSGL_ERR, MSGTR_CantOpenCodec);
+        return 0;
+    }
+    mp_msg(MSGT_DECVIDEO,MSGL_V,"INFO: libavcodec init OK!\n");
+    mpcodecs_config_vo(sh,sh->disp_w,sh->disp_h,IMGFMT_YV12);
+    return 1;
+}
+
+// uninit driver
+static void uninit(sh_video_t *sh){
+    if (avcodec_close(sh->context) < 0)
+    	    mp_msg(MSGT_DECVIDEO,MSGL_ERR, MSGTR_CantCloseCodec);
+}
+
+//mp_image_t* mpcodecs_get_image(sh_video_t *sh, int mp_imgtype, int mp_imgflag, int w, int h);
+
+// decode a frame
+static mp_image_t* decode(sh_video_t *sh,void* data,int len,int flags){
+    int got_picture=0;
+    int ret;
+    AVPicture lavc_picture;
+    AVCodecContext *ctx = sh->context;
+    mp_image_t* mpi;
+
+    if(len<=0) return NULL; // skipped frame
+    
+    ret = avcodec_decode_video(sh->context, &lavc_picture,
+	     &got_picture, data, len);
+    
+    if(ret<0) mp_msg(MSGT_DECVIDEO,MSGL_WARN, "Error while decoding frame!\n");
+    if(!got_picture) return NULL;	// skipped image
+    
+    mpi=mpcodecs_get_image(sh, MP_IMGTYPE_EXPORT, MP_IMGFLAG_PRESERVE,
+	ctx->width, ctx->height);
+    if(!mpi){	// temporary!
+	printf("couldn't allocate image for cinepak codec\n");
+	return NULL;
+    }
+    
+    mpi->planes[0]=lavc_picture.data[0];
+    mpi->planes[1]=lavc_picture.data[1];
+    mpi->planes[2]=lavc_picture.data[2];
+    mpi->stride[0]=lavc_picture.linesize[0];
+    mpi->stride[1]=lavc_picture.linesize[1];
+    mpi->stride[2]=lavc_picture.linesize[2];
+
+    if(ctx->pix_fmt==PIX_FMT_YUV422P){
+	mpi->stride[1]*=2;
+	mpi->stride[2]*=2;
+    }
+    
+    return mpi;
+}
+
+#endif
+