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FS-10757: [mod_conference] Race condition freeing avatar image #resolve

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This commit is contained in:
Anthony Minessale 2017-10-25 14:20:45 -05:00
parent ccb31ab442
commit 86184a2f73
3 changed files with 12 additions and 0 deletions
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2
src/mod/applications/mod_conference/conference_loop.c
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@ -742,7 +742,9 @@ void *SWITCH_THREAD_FUNC conference_loop_input(switch_thread_t *thread, void *ob
if (switch_channel_test_flag(channel, CF_VIDEO) && !conference_utils_member_test_flag(member, MFLAG_ACK_VIDEO)) {
conference_utils_member_set_flag_locked(member, MFLAG_ACK_VIDEO);
switch_mutex_lock(member->flag_mutex);
switch_img_free(&member->avatar_png_img);
switch_mutex_unlock(member->flag_mutex);
conference_video_check_avatar(member, SWITCH_FALSE);
switch_core_session_video_reinit(member->session);
conference_video_set_floor_holder(member->conference, member, SWITCH_FALSE);

2
src/mod/applications/mod_conference/conference_member.c
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@ -1166,9 +1166,11 @@ switch_status_t conference_member_del(conference_obj_t *conference, conference_m
last = imember;
}
switch_mutex_lock(member->flag_mutex);
switch_img_free(&member->avatar_png_img);
switch_img_free(&member->video_mute_img);
switch_img_free(&member->pcanvas_img);
switch_mutex_unlock(member->flag_mutex);
switch_thread_rwlock_unlock(member->rwlock);

8
src/mod/applications/mod_conference/conference_video.c
View File

@ -1861,8 +1861,10 @@ void conference_video_check_avatar(conference_member_t *member, switch_bool_t fo
avatar = var;
}
switch_mutex_lock(member->flag_mutex);
switch_img_free(&member->avatar_png_img);
if (avatar) {
member->avatar_png_img = switch_img_read_png(avatar, SWITCH_IMG_FMT_I420);
}
@ -1875,6 +1877,8 @@ void conference_video_check_avatar(conference_member_t *member, switch_bool_t fo
member->auto_avatar = 1;
}
switch_mutex_unlock(member->flag_mutex);
if (canvas) {
switch_mutex_unlock(canvas->mutex);
conference_video_release_canvas(&canvas);
@ -1894,7 +1898,9 @@ void conference_video_check_flush(conference_member_t *member, switch_bool_t for
if ((flushed || force) && member->auto_avatar) {
switch_channel_video_sync(member->channel);
switch_mutex_lock(member->flag_mutex);
switch_img_free(&member->avatar_png_img);
switch_mutex_unlock(member->flag_mutex);
member->avatar_patched = 0;
conference_video_reset_video_bitrate_counters(member);
member->blanks = 0;
@ -2723,6 +2729,7 @@ void *SWITCH_THREAD_FUNC conference_video_muxing_thread_run(switch_thread_t *thr
}
}
switch_mutex_lock(imember->flag_mutex);
if (imember->avatar_png_img) {
if (layer) {
if (!imember->avatar_patched || !layer->cur_img) {
@ -2736,6 +2743,7 @@ void *SWITCH_THREAD_FUNC conference_video_muxing_thread_run(switch_thread_t *thr
}
switch_img_free(&img);
}
switch_mutex_unlock(imember->flag_mutex);
if (!layer && (!conference_utils_test_flag(imember->conference, CFLAG_VIDEO_REQUIRED_FOR_CANVAS) || ((switch_channel_test_flag(imember->channel, CF_VIDEO_READY) && switch_core_session_media_flow(imember->session, SWITCH_MEDIA_TYPE_VIDEO) != SWITCH_MEDIA_FLOW_SENDONLY && switch_core_session_media_flow(imember->session, SWITCH_MEDIA_TYPE_VIDEO) != SWITCH_MEDIA_FLOW_INACTIVE)))) {
if (conference_video_find_layer(conference, canvas, imember, &layer) == SWITCH_STATUS_SUCCESS) {