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rtpvp9pay: minor refactor of PictureID logic

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This brings the logic inline with the vp8pay

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/4530>
This commit is contained in:
Camilo Celis Guzman 2023-04-25 15:36:45 +09:00 committed by GStreamer Marge Bot
parent a79616ea7a
commit 7cffb40c2e
1 changed files with 45 additions and 12 deletions
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57
subprojects/gst-plugins-good/gst/rtp/gstrtpvp9pay.c
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@ -96,14 +96,35 @@ GST_STATIC_PAD_TEMPLATE ("sink",
GST_PAD_ALWAYS,
GST_STATIC_CAPS ("video/x-vp9"));
static gint
picture_id_field_len (GstVP9RtpPayPictureIDMode mode)
{
if (VP9_PAY_NO_PICTURE_ID == mode)
return 0;
if (VP9_PAY_PICTURE_ID_7BITS == mode)
return 7;
return 15;
}
static void
gst_rtp_vp9_pay_picture_id_reset (GstRtpVP9Pay * self)
{
gint nbits;
if (self->picture_id_mode == VP9_PAY_NO_PICTURE_ID) {
self->picture_id = 0;
} else {
self->picture_id = g_random_int ();
nbits = picture_id_field_len (self->picture_id_mode);
self->picture_id &= (1 << nbits) - 1;
}
}
static void
gst_rtp_vp9_pay_init (GstRtpVP9Pay * obj)
{
obj->picture_id_mode = DEFAULT_PICTURE_ID_MODE;
if (obj->picture_id_mode == VP9_PAY_PICTURE_ID_7BITS)
obj->picture_id = g_random_int_range (0, G_MAXUINT8) & 0x7F;
else if (obj->picture_id_mode == VP9_PAY_PICTURE_ID_15BITS)
obj->picture_id = g_random_int_range (0, G_MAXUINT16) & 0x7FFF;
gst_rtp_vp9_pay_picture_id_reset (obj);
}
static void
@ -151,10 +172,7 @@ gst_rtp_vp9_pay_set_property (GObject * object,
switch (prop_id) {
case PROP_PICTURE_ID_MODE:
rtpvp9pay->picture_id_mode = g_value_get_enum (value);
if (rtpvp9pay->picture_id_mode == VP9_PAY_PICTURE_ID_7BITS)
rtpvp9pay->picture_id = g_random_int_range (0, G_MAXUINT8) & 0x7F;
else if (rtpvp9pay->picture_id_mode == VP9_PAY_PICTURE_ID_15BITS)
rtpvp9pay->picture_id = g_random_int_range (0, G_MAXUINT16) & 0x7FFF;
gst_rtp_vp9_pay_picture_id_reset (rtpvp9pay);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
@ -472,6 +490,19 @@ gst_rtp_vp9_payload_next (GstRtpVP9Pay * self, GstBufferList * list,
return available;
}
static void
gst_rtp_vp9_pay_picture_id_increment (GstRtpVP9Pay * self)
{
gint nbits;
if (self->picture_id_mode == VP9_PAY_NO_PICTURE_ID)
return;
/* Increment and wrap the picture id if it overflows */
nbits = picture_id_field_len (self->picture_id_mode);
self->picture_id++;
self->picture_id &= (1 << nbits) - 1;
}
static GstFlowReturn
gst_rtp_vp9_pay_handle_buffer (GstRTPBasePayload * payload, GstBuffer * buffer)
@ -522,10 +553,12 @@ gst_rtp_vp9_pay_sink_event (GstRTPBasePayload * payload, GstEvent * event)
GstRtpVP9Pay *self = GST_RTP_VP9_PAY (payload);
if (GST_EVENT_TYPE (event) == GST_EVENT_FLUSH_START) {
if (self->picture_id_mode == VP9_PAY_PICTURE_ID_7BITS)
self->picture_id = g_random_int_range (0, G_MAXUINT8) & 0x7F;
else if (self->picture_id_mode == VP9_PAY_PICTURE_ID_15BITS)
self->picture_id = g_random_int_range (0, G_MAXUINT16) & 0x7FFF;
gst_rtp_vp9_pay_picture_id_reset (self);
} else if (GST_EVENT_TYPE (event) == GST_EVENT_GAP) {
guint picture_id = self->picture_id;
gst_rtp_vp9_pay_picture_id_increment (self);
GST_DEBUG_OBJECT (payload, "Incrementing picture ID on GAP event %u->%u",
picture_id, self->picture_id);
}
return GST_RTP_BASE_PAYLOAD_CLASS (gst_rtp_vp9_pay_parent_class)->sink_event