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rtpmp4adepay: Only declare a stream to be framed once a marker bit has been seen

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This may cause a few packets to be processed by the parser, but it's
better than never pushing out buffers from a slightly broken stream
where no marker bits are set.
This commit is contained in:
Olivier Crête 2016-07-18 19:18:58 -04:00 committed by Vincent Penquerc'h
parent 720c3525de
commit 092465e94d
2 changed files with 27 additions and 2 deletions
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27
gst/rtp/gstrtpmp4adepay.c
View file

@ -37,7 +37,7 @@ GST_STATIC_PAD_TEMPLATE ("src",
GST_PAD_SRC,
GST_PAD_ALWAYS,
GST_STATIC_CAPS ("audio/mpeg,"
"mpegversion = (int) 4," "framed = (boolean) true, "
"mpegversion = (int) 4," "framed = (boolean) { false, true }, "
"stream-format = (string) raw")
);
@ -109,6 +109,7 @@ static void
gst_rtp_mp4a_depay_init (GstRtpMP4ADepay * rtpmp4adepay)
{
rtpmp4adepay->adapter = gst_adapter_new ();
rtpmp4adepay->framed = FALSE;
}
static void
@ -142,6 +143,8 @@ gst_rtp_mp4a_depay_setcaps (GstRTPBaseDepayload * depayload, GstCaps * caps)
rtpmp4adepay = GST_RTP_MP4A_DEPAY (depayload);
rtpmp4adepay->framed = FALSE;
structure = gst_caps_get_structure (caps, 0);
if (!gst_structure_get_int (structure, "clock-rate", &clock_rate))
@ -153,7 +156,7 @@ gst_rtp_mp4a_depay_setcaps (GstRTPBaseDepayload * depayload, GstCaps * caps)
srccaps = gst_caps_new_simple ("audio/mpeg",
"mpegversion", G_TYPE_INT, 4,
"framed", G_TYPE_BOOLEAN, TRUE, "channels", G_TYPE_INT, channels,
"framed", G_TYPE_BOOLEAN, FALSE, "channels", G_TYPE_INT, channels,
"stream-format", G_TYPE_STRING, "raw", NULL);
if ((str = gst_structure_get_string (structure, "config"))) {
@ -310,6 +313,25 @@ gst_rtp_mp4a_depay_process (GstRTPBaseDepayload * depayload, GstRTPBuffer * rtp)
outbuf = gst_rtp_buffer_get_payload_buffer (rtp);
if (!rtpmp4adepay->framed) {
if (gst_rtp_buffer_get_marker (rtp)) {
GstCaps *caps;
rtpmp4adepay->framed = TRUE;
gst_rtp_base_depayload_push (depayload, outbuf);
caps = gst_pad_get_current_caps (depayload->srcpad);
caps = gst_caps_make_writable (caps);
gst_caps_set_simple (caps, "framed", G_TYPE_BOOLEAN, TRUE, NULL);
gst_pad_set_caps (depayload->srcpad, caps);
gst_caps_unref (caps);
return NULL;
} else {
return outbuf;
}
}
outbuf = gst_buffer_make_writable (outbuf);
GST_BUFFER_PTS (outbuf) = GST_BUFFER_PTS (rtp->buffer);
gst_adapter_push (rtpmp4adepay->adapter, outbuf);
@ -422,6 +444,7 @@ gst_rtp_mp4a_depay_change_state (GstElement * element,
gst_adapter_clear (rtpmp4adepay->adapter);
rtpmp4adepay->frame_len = 0;
rtpmp4adepay->numSubFrames = 0;
rtpmp4adepay->framed = FALSE;
break;
default:
break;

2
gst/rtp/gstrtpmp4adepay.h
View file

@ -45,6 +45,8 @@ struct _GstRtpMP4ADepay
GstAdapter *adapter;
guint8 numSubFrames;
guint frame_len;
gboolean framed;
};
struct _GstRtpMP4ADepayClass