readaudio decoder - not yet working

git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@6368 b3059339-0415-0410-9bf9-f77b7e298cf2

libmpcodecs/Makefile

@@ -4,7 +4,7 @@ include ../config.mak
 LIBNAME = libmpcodecs.a
 LIBNAME2 = libmpencoders.a
 
-AUDIO_SRCS=dec_audio.c ad.c ad_a52.c ad_acm.c ad_alaw.c ad_dk3adpcm.c ad_dk4adpcm.c ad_dshow.c ad_dvdpcm.c ad_ffmpeg.c ad_hwac3.c ad_imaadpcm.c ad_mp3.c ad_msadpcm.c ad_pcm.c ad_roqaudio.c ad_msgsm.c ad_faad.c ad_vorbis.c ad_libmad.c
+AUDIO_SRCS=dec_audio.c ad.c ad_a52.c ad_acm.c ad_alaw.c ad_dk3adpcm.c ad_dk4adpcm.c ad_dshow.c ad_dvdpcm.c ad_ffmpeg.c ad_hwac3.c ad_imaadpcm.c ad_mp3.c ad_msadpcm.c ad_pcm.c ad_roqaudio.c ad_msgsm.c ad_faad.c ad_vorbis.c ad_libmad.c ad_real.c
 VIDEO_SRCS=dec_video.c vd.c vd_null.c vd_real.c vd_cinepak.c vd_qtrpza.c vd_ffmpeg.c vd_dshow.c vd_vfw.c vd_odivx.c vd_divx4.c vd_raw.c vd_xanim.c vd_msvidc.c vd_fli.c vd_qtrle.c vd_qtsmc.c vd_roqvideo.c vd_cyuv.c vd_nuv.c vd_libmpeg2.c vd_msrle.c vd_huffyuv.c vd_zlib.c vd_mpegpes.c
 VFILTER_SRCS=vf.c vf_vo.c vf_crop.c vf_expand.c vf_pp.c vf_scale.c vf_format.c vf_yuy2.c vf_flip.c vf_rgb2bgr.c vf_rotate.c vf_mirror.c vf_palette.c vf_lavc.c vf_dvbscale.c vf_cropdetect.c vf_test.c
 ENCODER_SRCS=ve.c ve_divx4.c ve_lavc.c ve_vfw.c ve_rawrgb.c ve_libdv.c

libmpcodecs/ad.c

@@ -34,6 +34,7 @@ extern ad_functions_t mpcodecs_ad_msgsm;
 extern ad_functions_t mpcodecs_ad_faad;
 extern ad_functions_t mpcodecs_ad_vorbis;
 extern ad_functions_t mpcodecs_ad_libmad;
+extern ad_functions_t mpcodecs_ad_real;
 
 ad_functions_t* mpcodecs_ad_drivers[] =
 {
@@ -66,6 +67,9 @@ ad_functions_t* mpcodecs_ad_drivers[] =
 #endif
 #ifdef USE_LIBMAD
   &mpcodecs_ad_libmad,
+#endif
+#ifdef USE_REALCODECS
+  &mpcodecs_ad_real,
 #endif
   NULL
 };

libmpcodecs/ad_real.c

@@ -0,0 +1,192 @@
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+
+#include "config.h"
+
+#ifdef USE_REALCODECS
+
+#include <stddef.h>
+#include <dlfcn.h>
+
+#include "ad_internal.h"
+
+static ad_info_t info =  {
+	"RealAudio decoder",  // name of the driver
+	"real",   // driver name. should be the same as filename without ad_
+	AFM_REAL,    // replace with registered AFM number
+	"A'rpi",     // writer/maintainer of _this_ file
+	"",          // writer/maintainer/site of the _codec_
+	""           // comments
+};
+
+LIBAD_EXTERN(real)
+
+static void *handle=NULL;
+
+void *__builtin_new(unsigned long size) {
+	return malloc(size);
+}
+
+
+static ulong (*raCloseCodec)(ulong);
+static ulong (*raDecode)(ulong,ulong,ulong,ulong,ulong,ulong);
+static ulong (*raFlush)(ulong,ulong,ulong);
+static ulong (*raFreeDecoder)(ulong);
+static ulong (*raGetFlavorProperty)(ulong,ulong,ulong,ulong);
+//static ulong (*raGetNumberOfFlavors2)(void);
+static ulong (*raInitDecoder)(ulong,ulong);
+static ulong (*raOpenCodec2)(ulong);
+static ulong (*raSetFlavor)(ulong,ulong);
+static void  (*raSetDLLAccessPath)(ulong);
+
+typedef struct {
+    int samplerate;
+    short bits;
+    short channels;
+    int unk1;
+    int unk2;
+    int packetsize;
+    int unk3;
+    void* unk4;
+} ra_init_t;
+
+static int preinit(sh_audio_t *sh){
+  // let's check if the driver is available, return 0 if not.
+  // (you should do that if you use external lib(s) which is optional)
+  unsigned int result;
+  handle = dlopen ("/usr/local/RealPlayer8/Codecs/cook.so.6.0", RTLD_LAZY);
+  if(!handle){
+      mp_msg(MSGT_DECAUDIO,MSGL_WARN,"Cannot open dll: %s\n",dlerror());
+      return 0;
+  }
+
+    raCloseCodec = dlsym(handle, "RACloseCodec");
+    raDecode = dlsym(handle, "RADecode");
+    raFlush = dlsym(handle, "RAFlush");
+    raFreeDecoder = dlsym(handle, "RAFreeDecoder");
+    raGetFlavorProperty = dlsym(handle, "RAGetFlavorProperty");
+    raOpenCodec2 = dlsym(handle, "RAOpenCodec2");
+    raInitDecoder = dlsym(handle, "RAInitDecoder");
+    raSetFlavor = dlsym(handle, "RASetFlavor");
+    raSetDLLAccessPath = dlsym(handle, "SetDLLAccessPath");
+    
+  if(!raCloseCodec || !raDecode || !raFlush || !raFreeDecoder ||
+     !raGetFlavorProperty || !raOpenCodec2 || !raSetFlavor ||
+     !raSetDLLAccessPath || !raInitDecoder){
+      mp_msg(MSGT_DECAUDIO,MSGL_WARN,"Cannot resolve symbols - incompatible dll\n");
+      return 0;
+  }
+
+    result=raOpenCodec2(&sh->context);
+    if(result){
+      mp_msg(MSGT_DECAUDIO,MSGL_WARN,"Decoder open failed, error code: 0x%X\n",result);
+      return 0;
+    }
+
+  sh->samplerate=sh->wf->nSamplesPerSec;
+  sh->samplesize=sh->wf->wBitsPerSample/8;
+  sh->channels=sh->wf->nChannels;
+
+  { unsigned char temp2[16]={1,0,0,3,4,0,0,0x14,0,0,0,0,0,1,0,3};
+    // note: temp2[] come from audio stream extra header (last 16 of the total 24 bytes)
+    ra_init_t init_data={
+	sh->wf->nSamplesPerSec,sh->wf->wBitsPerSample,sh->wf->nChannels,
+	100, 60,  // ?????
+	sh->wf->nBlockAlign,
+	16, // ??
+	((char*)(sh->wf+1))+2+8
+    };
+    result=raInitDecoder(sh->context,&init_data);
+    if(result){
+      mp_msg(MSGT_DECAUDIO,MSGL_WARN,"Decoder init failed, error code: 0x%X\n",result);
+      return 0;
+    }
+  }
+  
+    result=raSetFlavor(sh->context,*((short*)(sh->wf+1)));
+    if(result){
+      mp_msg(MSGT_DECAUDIO,MSGL_WARN,"Decoder flavor setup failed, error code: 0x%X\n",result);
+      return 0;
+    }
+
+  sh->audio_out_minsize=128000; //sh->samplerate*sh->samplesize*sh->channels;
+  sh->audio_in_minsize=2*sh->wf->nBlockAlign;
+//  sh->samplesize=2;
+//  sh->channels=2;
+//  sh->samplerate=44100;
+//  sh->sample_format=AFMT_S16_LE;
+  sh->i_bps=64000/8;
+  
+  return 1; // return values: 1=OK 0=ERROR
+}
+
+static int init(sh_audio_t *sh_audio){
+  // initialize the decoder, set tables etc...
+
+  // you can store HANDLE or private struct pointer at sh->context
+  // you can access WAVEFORMATEX header at sh->wf
+  
+  // set sample format/rate parameters if you didn't do it in preinit() yet.
+
+  return 1; // return values: 1=OK 0=ERROR
+}
+
+static void uninit(sh_audio_t *sh){
+  // uninit the decoder etc...
+  // again: you don't have to free() a_in_buffer here! it's done by the core.
+}
+
+static int decode_audio(sh_audio_t *sh,unsigned char *buf,int minlen,int maxlen){
+  int result;
+  int len=-1;
+  
+  demux_read_data(sh->ds, sh->a_in_buffer, 60);
+  
+  result=raDecode(sh->context, sh->a_in_buffer, sh->wf->nBlockAlign,
+       buf, &len, -1);
+       
+  printf("radecode: %d bytes, res=0x%X  \n",len,result);
+
+  // audio decoding. the most important thing :)
+  // parameters you get:
+  //  buf = pointer to the output buffer, you have to store uncompressed 
+  //        samples there
+  //  minlen = requested minimum size (in bytes!) of output. it's just a
+  //        _recommendation_, you can decode more or less, it just tell you that
+  //        the caller process needs 'minlen' bytes. if it gets less, it will
+  //        call decode_audio() again.
+  //  maxlen = maximum size (bytes) of output. you MUST NOT write more to the
+  //        buffer, it's the upper-most limit!
+  //        note: maxlen will be always greater or equal to sh->audio_out_minsize
+
+  // now, let's decode...  
+  
+  // you can read the compressed stream using the demux stream functions:
+  //  demux_read_data(sh->ds, buffer, length) - read 'length' bytes to 'buffer'
+  //  ds_get_packet(sh->ds, &buffer) - set ptr buffer to next data packet
+  // (both func return number of bytes or 0 for error)
+
+  return len/8; // return value: number of _bytes_ written to output buffer,
+              // or -1 for EOF (or uncorrectable error)
+}
+
+static int control(sh_audio_t *sh,int cmd,void* arg, ...){
+    // various optional functions you MAY implement:
+    switch(cmd){
+      case ADCTRL_RESYNC_STREAM:
+        // it is called once after seeking, to resync.
+	// Note: sh_audio->a_in_buffer_len=0; is done _before_ this call!
+	return CONTROL_TRUE;
+      case ADCTRL_SKIP_FRAME:
+        // it is called to skip (jump over) small amount (1/10 sec or 1 frame)
+	// of audio data - used to sync audio to video after seeking
+	// if you don't return CONTROL_TRUE, it will defaults to:
+	//      ds_fill_buffer(sh_audio->ds);  // skip 1 demux packet
+	return CONTROL_TRUE;
+    }
+  return CONTROL_UNKNOWN;
+}
+
+#endif