Added raw PCM writer ao driver.

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

1 files changed, 97 insertions, 0 deletions

diff --git a/libao2/ao_pcm.c b/libao2/ao_pcm.c
new file mode 100644
index 0000000000..165b2acba4
--- /dev/null
+++ b/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;
+}
+
+
+
+
+
+