Video support for ConfBridge.

Review: https://reviewboard.asterisk.org/r/1288/



git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@325931 65c4cc65-6c06-0410-ace0-fbb531ad65f3

1 files changed, 25 insertions, 4 deletions

diff --git a/main/dsp.c b/main/dsp.c
index 9e3e2e724..ee1891823 100644
--- a/main/dsp.c
+++ b/main/dsp.c
@@ -1103,7 +1103,7 @@ int ast_dsp_call_progress(struct ast_dsp *dsp, struct ast_frame *inf)
 	return __ast_dsp_call_progress(dsp, inf->data.ptr, inf->datalen / 2);
 }
 
-static int __ast_dsp_silence_noise(struct ast_dsp *dsp, short *s, int len, int *totalsilence, int *totalnoise)
+static int __ast_dsp_silence_noise(struct ast_dsp *dsp, short *s, int len, int *totalsilence, int *totalnoise, int *frames_energy)
 {
 	int accum;
 	int x;
@@ -1163,6 +1163,9 @@ static int __ast_dsp_silence_noise(struct ast_dsp *dsp, short *s, int len, int *
 	if (totalnoise) {
 		*totalnoise = dsp->totalnoise;
 	}
+	if (frames_energy) {
+		*frames_energy = accum;
+	}
 	return res;
 }
 
@@ -1318,7 +1321,25 @@ int ast_dsp_silence(struct ast_dsp *dsp, struct ast_frame *f, int *totalsilence)
 	}
 	s = f->data.ptr;
 	len = f->datalen/2;
-	return __ast_dsp_silence_noise(dsp, s, len, totalsilence, NULL);
+	return __ast_dsp_silence_noise(dsp, s, len, totalsilence, NULL, NULL);
+}
+
+int ast_dsp_silence_with_energy(struct ast_dsp *dsp, struct ast_frame *f, int *totalsilence, int *frames_energy)
+{
+	short *s;
+	int len;
+
+	if (f->frametype != AST_FRAME_VOICE) {
+		ast_log(LOG_WARNING, "Can't calculate silence on a non-voice frame\n");
+		return 0;
+	}
+	if (!ast_format_is_slinear(&f->subclass.format)) {
+		ast_log(LOG_WARNING, "Can only calculate silence on signed-linear frames :(\n");
+		return 0;
+	}
+	s = f->data.ptr;
+	len = f->datalen/2;
+	return __ast_dsp_silence_noise(dsp, s, len, totalsilence, NULL, frames_energy);
 }
 
 int ast_dsp_noise(struct ast_dsp *dsp, struct ast_frame *f, int *totalnoise)
@@ -1336,7 +1357,7 @@ int ast_dsp_noise(struct ast_dsp *dsp, struct ast_frame *f, int *totalnoise)
        }
        s = f->data.ptr;
        len = f->datalen/2;
-       return __ast_dsp_silence_noise(dsp, s, len, NULL, totalnoise);
+       return __ast_dsp_silence_noise(dsp, s, len, NULL, totalnoise, NULL);
 }
 
 
@@ -1393,7 +1414,7 @@ struct ast_frame *ast_dsp_process(struct ast_channel *chan, struct ast_dsp *dsp,
 
 	/* Need to run the silence detection stuff for silence suppression and busy detection */
 	if ((dsp->features & DSP_FEATURE_SILENCE_SUPPRESS) || (dsp->features & DSP_FEATURE_BUSY_DETECT)) {
-		res = __ast_dsp_silence_noise(dsp, shortdata, len, &silence, NULL);
+		res = __ast_dsp_silence_noise(dsp, shortdata, len, &silence, NULL, NULL);
 	}
 
 	if ((dsp->features & DSP_FEATURE_SILENCE_SUPPRESS) && silence) {