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https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-11-23 02:01:12 +00:00
interlace: Protect all properties with the lock
Avoid blatant data races here. Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/1039>
This commit is contained in:
Jan Alexander Steffens (heftig)
GStreamer Marge Bot
parent
683680f6e5
commit
2bf6e2a20e
1 changed files with 55 additions and 25 deletions
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@ -313,7 +313,10 @@ gst_interlace_finalize (GObject * obj)
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static void
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gst_interlace_reset (GstInterlace * interlace)
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{
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g_mutex_lock (&interlace->lock);
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interlace->phase_index = interlace->pattern_offset;
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g_mutex_unlock (&interlace->lock);
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interlace->timebase = GST_CLOCK_TIME_NONE;
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interlace->field_index = 0;
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interlace->passthrough = FALSE;
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@ -391,10 +394,12 @@ gst_interlace_decorate_buffer_ts (GstInterlace * interlace, GstBuffer * buf,
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int n_fields)
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{
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gint src_fps_n, src_fps_d;
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g_mutex_lock (&interlace->lock);
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src_fps_n = interlace->src_fps_n;
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src_fps_d = interlace->src_fps_d;
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g_mutex_unlock (&interlace->lock);
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/* field duration = src_fps_d / (2 * src_fps_n) */
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if (src_fps_n == 0) {
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/* If we don't know the fps, we can't generate timestamps/durations */
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@ -415,6 +420,12 @@ static void
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gst_interlace_decorate_buffer (GstInterlace * interlace, GstBuffer * buf,
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int n_fields, gboolean interlaced)
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{
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GstInterlacePattern pattern;
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g_mutex_lock (&interlace->lock);
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pattern = interlace->pattern;
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g_mutex_unlock (&interlace->lock);
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gst_interlace_decorate_buffer_ts (interlace, buf, n_fields);
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if (interlace->field_index == 0) {
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@ -426,21 +437,20 @@ gst_interlace_decorate_buffer (GstInterlace * interlace, GstBuffer * buf,
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if (n_fields == 1) {
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GST_BUFFER_FLAG_SET (buf, GST_VIDEO_BUFFER_FLAG_ONEFIELD);
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}
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g_mutex_lock (&interlace->lock);
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if (interlace->pattern > GST_INTERLACE_PATTERN_2_2 && n_fields == 2
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&& interlaced) {
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if (pattern > GST_INTERLACE_PATTERN_2_2 && n_fields == 2 && interlaced) {
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GST_BUFFER_FLAG_SET (buf, GST_VIDEO_BUFFER_FLAG_INTERLACED);
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}
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g_mutex_unlock (&interlace->lock);
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}
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static const gchar *
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interlace_mode_from_pattern (GstInterlace * interlace)
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{
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GstInterlacePattern pattern;
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g_mutex_lock (&interlace->lock);
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pattern = interlace->pattern;
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g_mutex_unlock (&interlace->lock);
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if (pattern > GST_INTERLACE_PATTERN_2_2)
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return "mixed";
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else
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@ -470,7 +480,7 @@ gst_interlace_setcaps (GstInterlace * interlace, GstCaps * caps)
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GstVideoInfo info, out_info;
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GstCaps *othercaps, *src_peer_caps;
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const PulldownFormat *pdformat;
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gboolean alternate;
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gboolean top_field_first, alternate;
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int i;
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int src_fps_n, src_fps_d;
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GstInterlacePattern pattern;
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@ -481,6 +491,7 @@ gst_interlace_setcaps (GstInterlace * interlace, GstCaps * caps)
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g_mutex_lock (&interlace->lock);
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interlace->pattern = interlace->new_pattern;
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pattern = interlace->pattern;
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top_field_first = interlace->top_field_first;
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g_mutex_unlock (&interlace->lock);
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/* Check if downstream prefers alternate mode */
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@ -528,14 +539,15 @@ gst_interlace_setcaps (GstInterlace * interlace, GstCaps * caps)
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pdformat = &formats[pattern];
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interlace->phase_index = interlace->pattern_offset;
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src_fps_n = info.fps_n * pdformat->ratio_n;
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src_fps_d = info.fps_d * pdformat->ratio_d;
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g_mutex_lock (&interlace->lock);
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interlace->phase_index = interlace->pattern_offset;
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interlace->src_fps_n = src_fps_n;
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interlace->src_fps_d = src_fps_d;
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g_mutex_unlock (&interlace->lock);
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GST_DEBUG_OBJECT (interlace, "new framerate %d/%d", src_fps_n, src_fps_d);
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if (alternate) {
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@ -592,8 +604,7 @@ gst_interlace_setcaps (GstInterlace * interlace, GstCaps * caps)
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src_fps_d, NULL);
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if (pattern <= GST_INTERLACE_PATTERN_2_2 || alternate) {
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gst_caps_set_simple (othercaps, "field-order", G_TYPE_STRING,
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interlace->top_field_first ? "top-field-first" : "bottom-field-first",
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NULL);
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top_field_first ? "top-field-first" : "bottom-field-first", NULL);
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}
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/* outcaps changed, regenerate out_info */
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gst_video_info_from_caps (&out_info, othercaps);
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@ -874,12 +885,14 @@ gst_interlace_getcaps (GstPad * pad, GstInterlace * interlace, GstCaps * filter)
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const char *mode;
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guint i;
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gint pattern;
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gboolean top_field_first;
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otherpad =
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(pad == interlace->srcpad) ? interlace->sinkpad : interlace->srcpad;
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g_mutex_lock (&interlace->lock);
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pattern = interlace->new_pattern;
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top_field_first = interlace->top_field_first;
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g_mutex_unlock (&interlace->lock);
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if (filter != NULL) {
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@ -929,8 +942,7 @@ gst_interlace_getcaps (GstPad * pad, GstInterlace * interlace, GstCaps * filter)
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if (pad == interlace->srcpad) {
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gst_structure_set (s, "field-order", G_TYPE_STRING,
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interlace->top_field_first ? "top-field-first" :
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"bottom-field-first", NULL);
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top_field_first ? "top-field-first" : "bottom-field-first", NULL);
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} else {
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gst_structure_remove_field (s, "field-order");
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}
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@ -1215,10 +1227,10 @@ gst_interlace_chain (GstPad * pad, GstObject * parent, GstBuffer * buffer)
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GstInterlace *interlace = GST_INTERLACE (parent);
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GstFlowReturn ret = GST_FLOW_OK;
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gint num_fields = 0;
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guint current_fields;
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guint current_fields, pattern_offset;
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const PulldownFormat *format;
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GstClockTime timestamp;
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gboolean alternate;
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gboolean allow_rff, top_field_first, alternate;
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timestamp = GST_BUFFER_TIMESTAMP (buffer);
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@ -1236,6 +1248,13 @@ gst_interlace_chain (GstPad * pad, GstObject * parent, GstBuffer * buffer)
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return gst_pad_push (interlace->srcpad, buffer);
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}
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g_mutex_lock (&interlace->lock);
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format = &formats[interlace->pattern];
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allow_rff = interlace->allow_rff;
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pattern_offset = interlace->pattern_offset;
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top_field_first = interlace->top_field_first;
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g_mutex_unlock (&interlace->lock);
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if (GST_BUFFER_FLAGS (buffer) & GST_BUFFER_FLAG_DISCONT) {
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GST_DEBUG ("discont");
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@ -1245,7 +1264,7 @@ gst_interlace_chain (GstPad * pad, GstObject * parent, GstBuffer * buffer)
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interlace->stored_fields = 0;
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}
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if (interlace->top_field_first) {
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if (top_field_first) {
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interlace->field_index = 0;
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} else {
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interlace->field_index = 1;
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@ -1257,12 +1276,8 @@ gst_interlace_chain (GstPad * pad, GstObject * parent, GstBuffer * buffer)
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interlace->timebase = timestamp;
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}
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g_mutex_lock (&interlace->lock);
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format = &formats[interlace->pattern];
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g_mutex_unlock (&interlace->lock);
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if (interlace->stored_fields == 0
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&& interlace->phase_index == interlace->pattern_offset
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&& interlace->phase_index == pattern_offset
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&& GST_CLOCK_TIME_IS_VALID (timestamp)) {
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interlace->timebase = timestamp;
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interlace->fields_since_timebase = 0;
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@ -1370,7 +1385,7 @@ gst_interlace_chain (GstPad * pad, GstObject * parent, GstBuffer * buffer)
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gst_video_frame_unmap (&sframe);
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}
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if (num_fields >= 3 && interlace->allow_rff) {
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if (num_fields >= 3 && allow_rff) {
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GST_DEBUG ("3 fields from current");
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/* take both fields from incoming buffer */
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current_fields -= 3;
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@ -1459,26 +1474,35 @@ gst_interlace_set_property (GObject * object,
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switch (prop_id) {
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case PROP_TOP_FIELD_FIRST:
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g_mutex_lock (&interlace->lock);
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interlace->top_field_first = g_value_get_boolean (value);
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g_mutex_unlock (&interlace->lock);
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break;
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case PROP_PATTERN:{
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gint pattern = g_value_get_enum (value);
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gboolean reconfigure = FALSE;
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g_mutex_lock (&interlace->lock);
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interlace->new_pattern = pattern;
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if (pattern == interlace->pattern || interlace->src_fps_n == 0) {
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if (interlace->src_fps_n == 0 || interlace->pattern == pattern)
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interlace->pattern = pattern;
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else
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reconfigure = TRUE;
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g_mutex_unlock (&interlace->lock);
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} else {
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g_mutex_unlock (&interlace->lock);
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if (reconfigure)
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gst_pad_push_event (interlace->sinkpad, gst_event_new_reconfigure ());
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}
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break;
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}
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case PROP_PATTERN_OFFSET:
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g_mutex_lock (&interlace->lock);
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interlace->pattern_offset = g_value_get_uint (value);
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g_mutex_unlock (&interlace->lock);
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break;
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case PROP_ALLOW_RFF:
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g_mutex_lock (&interlace->lock);
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interlace->allow_rff = g_value_get_boolean (value);
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g_mutex_unlock (&interlace->lock);
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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@ -1494,7 +1518,9 @@ gst_interlace_get_property (GObject * object,
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switch (prop_id) {
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case PROP_TOP_FIELD_FIRST:
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g_mutex_lock (&interlace->lock);
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g_value_set_boolean (value, interlace->top_field_first);
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g_mutex_unlock (&interlace->lock);
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break;
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case PROP_PATTERN:
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g_mutex_lock (&interlace->lock);
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@ -1502,10 +1528,14 @@ gst_interlace_get_property (GObject * object,
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g_mutex_unlock (&interlace->lock);
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break;
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case PROP_PATTERN_OFFSET:
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g_mutex_lock (&interlace->lock);
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g_value_set_uint (value, interlace->pattern_offset);
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g_mutex_unlock (&interlace->lock);
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break;
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case PROP_ALLOW_RFF:
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g_mutex_lock (&interlace->lock);
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g_value_set_boolean (value, interlace->allow_rff);
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g_mutex_unlock (&interlace->lock);
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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