server/gstdecode.c: Add `-s' option to omit DisOrder's usual framing.

The result can be piped into something like

	play -b16 -c2 -esigned-integer -r44100 -L -traw -

to verify that its output approximates decoded audio.

diff --git a/doc/disorder-gstdecode.8.in b/doc/disorder-gstdecode.8.in
index 61d7fd4..e3175c2 100644 (file)
--- a/doc/disorder-gstdecode.8.in
+++ b/doc/disorder-gstdecode.8.in
@@ -21,6 +21,7 @@
 disorder-gstdecode \- DisOrder audio decoder using GStreamer
 .SH SYNOPSIS
 .B disorder\-gstdecode
 disorder-gstdecode \- DisOrder audio decoder using GStreamer
 .SH SYNOPSIS
 .B disorder\-gstdecode

+.RB [ \-s ]

 .RB [ -c
 .IR CONFIGFILE ]
 .RB [ \-d
 .RB [ -c
 .IR CONFIGFILE ]
 .RB [ \-d


@@ -105,6 +106,11 @@ This can be \fBoff\fR to not bother with ReplayGain at all,
 (so that the volume level sounds consistent
 when playing an entire album).
 The default is \fBalbum\fR.
 (so that the volume level sounds consistent
 when playing an entire album).
 The default is \fBalbum\fR.

+.TP
+.B \-\-stream\fR, \fB\-s
+Write a stream of raw samples to the output,
+instead of including DisOrder's usual framing.
+This is useful for testing the program on its own.

 .SH "SEE ALSO"
 .BR disorderd (8),
 .BR disorder_config (5)
 .SH "SEE ALSO"
 .BR disorderd (8),
 .BR disorder_config (5)

diff --git a/server/gstdecode.c b/server/gstdecode.c
index 10884a4..93cde85 100644 (file)
--- a/server/gstdecode.c
+++ b/server/gstdecode.c
@@ -51,6 +51,8 @@ static const char *file;
 static GstAppSink *appsink;
 static GstElement *pipeline;
 static GMainLoop *loop;
 static GstAppSink *appsink;
 static GstElement *pipeline;
 static GMainLoop *loop;

+static unsigned flags = 0;
+#define f_stream 1u

 
 #define MODES(_) _("off", OFF) _("track", TRACK) _("album", ALBUM)
 enum {
 
 #define MODES(_) _("off", OFF) _("track", TRACK) _("album", ALBUM)
 enum {


@@ -338,7 +340,7 @@ static GstFlowReturn cb_buffer(GstAppSink *sink, gpointer UNUSED u)
 
   /* Write out a frame of audio data. */
   hdr.nbytes = GST_BUFFER_SIZE(buf);
 
   /* Write out a frame of audio data. */
   hdr.nbytes = GST_BUFFER_SIZE(buf);

-  if(fwrite(&hdr, sizeof(hdr), 1, fp) != 1 ||
+  if((!(flags&f_stream) && fwrite(&hdr, sizeof(hdr), 1, fp) != 1) ||

      fwrite(GST_BUFFER_DATA(buf), 1, hdr.nbytes, fp) != hdr.nbytes)
     disorder_fatal(errno, "output");
 
      fwrite(GST_BUFFER_DATA(buf), 1, hdr.nbytes, fp) != hdr.nbytes)
     disorder_fatal(errno, "output");
 


@@ -419,6 +421,7 @@ static const struct option options[] = {
   { "noise-shape", required_argument, 0, 'n' },
   { "quality", required_argument, 0, 'q' },
   { "replay-gain", required_argument, 0, 'r' },
   { "noise-shape", required_argument, 0, 'n' },
   { "quality", required_argument, 0, 'q' },
   { "replay-gain", required_argument, 0, 'r' },

+  { "stream", no_argument, 0, 's' },

   { 0, 0, 0, 0 }
 };
 
   { 0, 0, 0, 0 }
 };
 


@@ -437,6 +440,7 @@ static void help(void)
           "                                     `simple', `medium' or `high'\n"
           "  --quality QUAL, -q QUAL    Resampling quality: 0 poor, 10 good\n"
           "  --replay-gain MODE, -r MODE  MODE is `off', `track' or `album'\n"
           "                                     `simple', `medium' or `high'\n"
           "  --quality QUAL, -q QUAL    Resampling quality: 0 poor, 10 good\n"
           "  --replay-gain MODE, -r MODE  MODE is `off', `track' or `album'\n"

+          "  --stream, -s               Output raw samples, without framing\n"

           "\n"
           "Alternative audio decoder for DisOrder.  Only intended to be\n"
           "used by speaker process, not for normal users.\n");
           "\n"
           "Alternative audio decoder for DisOrder.  Only intended to be\n"
           "used by speaker process, not for normal users.\n");


@@ -455,7 +459,7 @@ int main(int argc, char *argv[])
   if(!setlocale(LC_CTYPE, "")) disorder_fatal(errno, "calling setlocale");
 
   /* Parse command line. */
   if(!setlocale(LC_CTYPE, "")) disorder_fatal(errno, "calling setlocale");
 
   /* Parse command line. */

-  while((n = getopt_long(argc, argv, "hVc:d:f:n:q:r:", options, 0)) >= 0) {
+  while((n = getopt_long(argc, argv, "hVc:d:f:n:q:r:s", options, 0)) >= 0) {

     switch(n) {
     case 'h': help();
     case 'V': version("disorder-gstdecode");
     switch(n) {
     case 'h': help();
     case 'V': version("disorder-gstdecode");


@@ -465,6 +469,7 @@ int main(int argc, char *argv[])
     case 'n': shape = getenum("noise-shaping type", optarg, shapes); break;
     case 'q': quality = getint("resample quality", optarg, 0, 10); break;
     case 'r': mode = getenum("ReplayGain mode", optarg, modes); break;
     case 'n': shape = getenum("noise-shaping type", optarg, shapes); break;
     case 'q': quality = getint("resample quality", optarg, 0, 10); break;
     case 'r': mode = getenum("ReplayGain mode", optarg, modes); break;

+    case 's': flags |= f_stream; break;

     default: disorder_fatal(0, "invalid option");
     }
   }
     default: disorder_fatal(0, "invalid option");
     }
   }