Added raw PCM writer ao driver.

git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@1108 b3059339-0415-0410-9bf9-f77b7e298cf2

libao2/Makefile

@@ -4,7 +4,7 @@ include config.mak
 LIBNAME = libao2.a
 
 # TODO: moveout ao_sdl.c so it's only used when SDL is detected
-SRCS=audio_out.c ao_null.c $(OPTIONAL_SRCS)
+SRCS=audio_out.c ao_null.c ao_pcm.c $(OPTIONAL_SRCS)
 OBJS=$(SRCS:.c=.o)
 
 CFLAGS  = $(OPTFLAGS) -I. -I.. $(SDL_INC)

libao2/ao_pcm.c

@@ -0,0 +1,97 @@
+#include <stdio.h>
+#include <stdlib.h>
+
+#include "audio_out.h"
+#include "audio_out_internal.h"
+
+static ao_info_t info = 
+{
+	"PCM writer audio output",
+	"pcm",
+	"Atmosfear",
+	""
+};
+
+LIBAO_EXTERN(pcm)
+
+// there are some globals:
+// ao_samplerate
+// ao_channels
+// ao_format
+// ao_bps
+// ao_outburst
+// ao_buffersize
+
+static FILE *fp = NULL;
+
+// to set/get/query special features/parameters
+static int control(int cmd,int arg){
+    return -1;
+}
+
+// open & setup audio device
+// return: 1=success 0=fail
+static int init(int rate,int channels,int format,int flags){
+	
+	printf("PCM: File: audiodump.pcm Samplerate: %iHz Channels: %s Format %s\n", rate, (channels > 1) ? "Stereo" : "Mono", audio_out_format_name(format));
+	printf("PCM: Info - fastest dumping is achieved with -vo null -hardframedrop.\n");
+	fp = fopen("audiodump.pcm", "wb");
+
+	ao_outburst = 4096;
+
+
+	if(fp) return 1;
+	printf("PCM: Failed to open audiodump.pcm for writing!\n");
+	return 0;
+}
+
+// close audio device
+static void uninit(){
+	fclose(fp);
+}
+
+// stop playing and empty buffers (for seeking/pause)
+static void reset(){
+
+}
+
+// stop playing, keep buffers (for pause)
+static void audio_pause()
+{
+    // for now, just call reset();
+    reset();
+}
+
+// resume playing, after audio_pause()
+static void audio_resume()
+{
+}
+
+// return: how many bytes can be played without blocking
+static int get_space(){
+
+    return ao_outburst;
+}
+
+// plays 'len' bytes of 'data'
+// it should round it down to outburst*n
+// return: number of bytes played
+static int play(void* data,int len,int flags){
+
+	//printf("PCM: Writing chunk!\n");
+	fwrite(data,len,1,fp);
+	
+	return len;
+}
+
+// return: how many unplayed bytes are in the buffer
+static int get_delay(){
+
+    return 0;
+}
+
+
+
+
+
+

libao2/audio_out.c

@@ -33,6 +33,7 @@ extern ao_functions_t audio_out_sdl;
 #ifdef USE_SUN_AUDIO
 extern ao_functions_t audio_out_sun;
 #endif
+extern ao_functions_t audio_out_pcm;
 
 ao_functions_t* audio_out_drivers[] =
 {
@@ -55,6 +56,7 @@ ao_functions_t* audio_out_drivers[] =
 #ifdef USE_SUN_AUDIO
         &audio_out_sun,
 #endif
+	&audio_out_pcm,
 	NULL
 };